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         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 }