sys/dev/ex/if_ex_isa.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2000 Matthew N. Dodd
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  */
  29
  30 #include <sys/cdefs.h>
  31 __FBSDID("$FreeBSD$");
  32
  33 #include <sys/param.h>
  34 #include <sys/systm.h>
  35 #include <sys/kernel.h>
  36 #include <sys/socket.h>
  37
  38 #include <sys/module.h>
  39 #include <sys/bus.h>
  40
  41 #include <machine/bus.h>
  42 #include <machine/resource.h>
  43 #include <sys/rman.h>
  44
  45 #include <net/if.h>
  46 #include <net/if_arp.h>
  47 #include <net/if_media.h>
  48
  49
  50 #include <isa/isavar.h>
  51 #include <isa/pnpvar.h>
  52
  53 #include <dev/ex/if_exreg.h>
  54 #include <dev/ex/if_exvar.h>
  55
  56 /* Bus Front End Functions */
  57 static void     ex_isa_identify(driver_t *, device_t);
  58 static int      ex_isa_probe(device_t);
  59 static int      ex_isa_attach(device_t);
  60
  61 static int      ex_look_for_card(struct ex_softc *);
  62
  63 #if 0
  64 static  void    ex_pnp_wakeup(void *);
  65
  66 SYSINIT(ex_pnpwakeup, SI_SUB_CPU, SI_ORDER_ANY, ex_pnp_wakeup, NULL);
  67 #endif
  68
  69 static device_method_t ex_isa_methods[] = {
  70         /* Device interface */
  71         DEVMETHOD(device_identify,      ex_isa_identify),
  72         DEVMETHOD(device_probe,         ex_isa_probe),
  73         DEVMETHOD(device_attach,        ex_isa_attach),
  74         DEVMETHOD(device_detach,        ex_detach),
  75
  76         { 0, 0 }
  77 };
  78
  79 static driver_t ex_isa_driver = {
  80         "ex",
  81         ex_isa_methods,
  82         sizeof(struct ex_softc),
  83 };
  84
  85 DRIVER_MODULE(ex, isa, ex_isa_driver, ex_devclass, 0, 0);
  86
  87 static struct isa_pnp_id ex_ids[] = {
  88         { 0x3110d425,   NULL }, /* INT1031 */
  89         { 0x3010d425,   NULL }, /* INT1030 */
  90         { 0,            NULL },
  91 };
  92
  93 #if 0
  94 #define EX_PNP_WAKE             0x279
  95
  96 static uint8_t ex_pnp_wake_seq[] =
  97                         { 0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,
  98                           0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,
  99                           0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,
 100                           0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43 };
 101
 102 static void
 103 ex_pnp_wakeup (void * dummy)
 104 {
 105         int     tmp;
 106
 107         if (bootverbose)
 108                 printf("ex_pnp_wakeup()\n");
 109
 110         outb(EX_PNP_WAKE, 0);
 111         outb(EX_PNP_WAKE, 0);
 112         for (tmp = 0; tmp < 32; tmp++) {
 113                 outb(EX_PNP_WAKE, ex_pnp_wake_seq[tmp]);
 114         }
 115 }
 116 #endif
 117
 118 /*
 119  * Non-destructive identify.
 120  */
 121 static void
 122 ex_isa_identify(driver_t *driver, device_t parent)
 123 {
 124         device_t        child;
 125         bus_addr_t      ioport;
 126         u_char          enaddr[6];
 127         u_int           irq;
 128         int             tmp;
 129         const char *    desc;
 130         struct ex_softc sc;
 131         int             rid;
 132
 133         if (bootverbose)
 134                 printf("ex_isa_identify()\n");
 135
 136         for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) {
 137                 rid = 0;
 138                 sc.ioport = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
 139                     ioport, ioport, 0x10, RF_ACTIVE);
 140                 if (sc.ioport == NULL)
 141                         continue;
 142
 143                 /* No board found at address */
 144                 if (!ex_look_for_card(&sc)) {
 145                         bus_release_resource(parent, SYS_RES_IOPORT, rid,
 146                             sc.ioport);
 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,
 161                             sc.ioport);
 162                         continue;
 163                 }
 164
 165                 bzero(enaddr, sizeof(enaddr));
 166
 167                 /* Reset the card. */
 168                 CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
 169                 DELAY(400);
 170
 171                 ex_get_address(&sc, enaddr);
 172                 tmp = ex_eeprom_read(&sc, EE_W1) & EE_W1_INT_SEL;
 173
 174                 /* work out which set of irq <-> internal tables to use */
 175                 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
 176                         irq  = plus_ee2irqmap[tmp];
 177                         desc = "Intel Pro/10+";
 178                 } else {
 179                         irq = ee2irqmap[tmp];
 180                         desc = "Intel Pro/10";
 181                 }
 182
 183                 bus_release_resource(parent, SYS_RES_IOPORT, rid, sc.ioport);
 184                 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1);
 185                 device_set_desc_copy(child, desc);
 186                 device_set_driver(child, driver);
 187                 bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
 188                 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE);
 189                 if (bootverbose)
 190                         printf("ex: Adding board at 0x%03lx, irq %d\n",
 191                            (unsigned long)ioport, irq);
 192         }
 193
 194         return;
 195 }
 196
 197 static int
 198 ex_isa_probe(device_t dev)
 199 {
 200         bus_addr_t      iobase;
 201         u_int           irq;
 202         char *          irq2ee;
 203         u_char *        ee2irq;
 204         u_char          enaddr[6];
 205         int             tmp;
 206         int             error;
 207         struct ex_softc *sc = device_get_softc(dev);
 208
 209         /* Check isapnp ids */
 210         error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids);
 211
 212         /* If the card had a PnP ID that didn't match any we know about */
 213         if (error == ENXIO)
 214                 return(error);
 215
 216         /* If we had some other problem. */
 217         if (!(error == 0 || error == ENOENT))
 218                 return(error);
 219
 220         error = ex_alloc_resources(dev);
 221         if (error != 0)
 222                 goto bad;
 223         iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
 224         if (!ex_look_for_card(sc)) {
 225                 if (bootverbose)
 226                         printf("ex: no card found at 0x%03lx.\n", (unsigned long)iobase);
 227                 error = ENXIO;
 228                 goto bad;
 229         }
 230         if (bootverbose)
 231                 printf("ex: ex_isa_probe() found card at 0x%03lx\n", (unsigned long)iobase);
 232
 233         /*
 234          * Reset the card.
 235          */
 236         CSR_WRITE_1(sc, CMD_REG, Reset_CMD);
 237         DELAY(800);
 238
 239         ex_get_address(sc, enaddr);
 240
 241         /* work out which set of irq <-> internal tables to use */
 242         if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
 243                 irq2ee = plus_irq2eemap;
 244                 ee2irq = plus_ee2irqmap;
 245         } else {
 246                 irq2ee = irq2eemap;
 247                 ee2irq = ee2irqmap;
 248         }
 249
 250         tmp = ex_eeprom_read(sc, EE_W1) & EE_W1_INT_SEL;
 251         irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
 252         if (irq > 0) {
 253                 /* This will happen if board is in PnP mode. */
 254                 if (ee2irq[tmp] != irq) {
 255                         device_printf(dev,
 256                             "WARNING: IRQ mismatch: EEPROM %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         sc->flags |= HAS_INT_NO_REG;
 285
 286         if ((error = ex_alloc_resources(dev)) != 0) {
 287                 device_printf(dev, "ex_alloc_resources() failed!\n");
 288                 goto bad;
 289         }
 290
 291         /*
 292          * Fill in several fields of the softc structure:
 293          *      - I/O base address.
 294          *      - Hardware Ethernet address.
 295          *      - IRQ number (if not supplied in config file, read it from EEPROM).
 296          *      - Connector type.
 297          */
 298         sc->irq_no = rman_get_start(sc->irq);
 299
 300         ex_get_address(sc, sc->enaddr);
 301
 302         temp = ex_eeprom_read(sc, EE_W0);
 303         device_printf(sc->dev, "%s config, %s bus, ",
 304                 (temp & EE_W0_PNP) ? "PnP" : "Manual",
 305                 (temp & EE_W0_BUS16) ? "16-bit" : "8-bit");
 306
 307         temp = ex_eeprom_read(sc, EE_W6);
 308         printf("board id 0x%03x, stepping 0x%01x\n",
 309                 (temp & EE_W6_BOARD_MASK) >> EE_W6_BOARD_SHIFT,
 310                 temp & EE_W6_STEP_MASK);
 311
 312         if ((error = ex_attach(dev)) != 0) {
 313                 device_printf(dev, "ex_attach() failed!\n");
 314                 goto bad;
 315         }
 316
 317         return(0);
 318 bad:
 319         ex_release_resources(dev);
 320         return (error);
 321 }
 322
 323 static int
 324 ex_look_for_card(struct ex_softc *sc)
 325 {
 326         int count1, count2;
 327
 328         /*
 329          * Check for the i82595 signature, and check that the round robin
 330          * counter actually advances.
 331          */
 332         if (((count1 = CSR_READ_1(sc, ID_REG)) & Id_Mask) != Id_Sig)
 333                 return(0);
 334         count2 = CSR_READ_1(sc, ID_REG);
 335         count2 = CSR_READ_1(sc, ID_REG);
 336         count2 = CSR_READ_1(sc, ID_REG);
 337
 338         return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
 339 }