drivers/net/macsonic.c

   1 /*
   2  * macsonic.c
   3  *
   4  * (C) 2005 Finn Thain
   5  *
   6  * Converted to DMA API, converted to unified driver model, made it work as
   7  * a module again, and from the mac68k project, introduced more 32-bit cards
   8  * and dhd's support for 16-bit cards.
   9  *
  10  * (C) 1998 Alan Cox
  11  *
  12  * Debugging Andreas Ehliar, Michael Schmitz
  13  *
  14  * Based on code
  15  * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de)
  16  *
  17  * This driver is based on work from Andreas Busse, but most of
  18  * the code is rewritten.
  19  *
  20  * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
  21  *
  22  * A driver for the Mac onboard Sonic ethernet chip.
  23  *
  24  * 98/12/21 MSch: judged from tests on Q800, it's basically working,
  25  *                but eating up both receive and transmit resources
  26  *                and duplicating packets. Needs more testing.
  27  *
  28  * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed.
  29  *
  30  * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems
  31  *          on centris.
  32  */
  33
  34 #include <linux/kernel.h>
  35 #include <linux/module.h>
  36 #include <linux/types.h>
  37 #include <linux/fcntl.h>
  38 #include <linux/interrupt.h>
  39 #include <linux/init.h>
  40 #include <linux/ioport.h>
  41 #include <linux/in.h>
  42 #include <linux/slab.h>
  43 #include <linux/string.h>
  44 #include <linux/delay.h>
  45 #include <linux/nubus.h>
  46 #include <linux/errno.h>
  47 #include <linux/netdevice.h>
  48 #include <linux/etherdevice.h>
  49 #include <linux/skbuff.h>
  50 #include <linux/device.h>
  51 #include <linux/dma-mapping.h>
  52
  53 #include <asm/bootinfo.h>
  54 #include <asm/system.h>
  55 #include <asm/pgtable.h>
  56 #include <asm/io.h>
  57 #include <asm/hwtest.h>
  58 #include <asm/dma.h>
  59 #include <asm/macintosh.h>
  60 #include <asm/macints.h>
  61 #include <asm/mac_via.h>
  62
  63 static char mac_sonic_string[] = "macsonic";
  64 static struct platform_device *mac_sonic_device;
  65
  66 #include "sonic.h"
  67
  68 /* These should basically be bus-size and endian independent (since
  69    the SONIC is at least smart enough that it uses the same endianness
  70    as the host, unlike certain less enlightened Macintosh NICs) */
  71 #define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
  72               + lp->reg_offset))
  73 #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
  74               + lp->reg_offset))
  75
  76 /* use 0 for production, 1 for verification, >1 for debug */
  77 #ifdef SONIC_DEBUG
  78 static unsigned int sonic_debug = SONIC_DEBUG;
  79 #else
  80 static unsigned int sonic_debug = 1;
  81 #endif
  82
  83 static int sonic_version_printed;
  84
  85 extern int mac_onboard_sonic_probe(struct net_device* dev);
  86 extern int mac_nubus_sonic_probe(struct net_device* dev);
  87
  88 /* For onboard SONIC */
  89 #define ONBOARD_SONIC_REGISTERS 0x50F0A000
  90 #define ONBOARD_SONIC_PROM_BASE 0x50f08000
  91
  92 enum macsonic_type {
  93         MACSONIC_DUODOCK,
  94         MACSONIC_APPLE,
  95         MACSONIC_APPLE16,
  96         MACSONIC_DAYNA,
  97         MACSONIC_DAYNALINK
  98 };
  99
 100 /* For the built-in SONIC in the Duo Dock */
 101 #define DUODOCK_SONIC_REGISTERS 0xe10000
 102 #define DUODOCK_SONIC_PROM_BASE 0xe12000
 103
 104 /* For Apple-style NuBus SONIC */
 105 #define APPLE_SONIC_REGISTERS   0
 106 #define APPLE_SONIC_PROM_BASE   0x40000
 107
 108 /* Daynalink LC SONIC */
 109 #define DAYNALINK_PROM_BASE 0x400000
 110
 111 /* For Dayna-style NuBus SONIC (haven't seen one yet) */
 112 #define DAYNA_SONIC_REGISTERS   0x180000
 113 /* This is what OpenBSD says.  However, this is definitely in NuBus
 114    ROM space so we should be able to get it by walking the NuBus
 115    resource directories */
 116 #define DAYNA_SONIC_MAC_ADDR    0xffe004
 117
 118 #define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
 119
 120 /*
 121  * For reversing the PROM address
 122  */
 123
 124 static unsigned char nibbletab[] = {0, 8, 4, 12, 2, 10, 6, 14,
 125                                     1, 9, 5, 13, 3, 11, 7, 15};
 126
 127 static inline void bit_reverse_addr(unsigned char addr[6])
 128 {
 129         int i;
 130
 131         for(i = 0; i < 6; i++)
 132                 addr[i] = ((nibbletab[addr[i] & 0xf] << 4) |
 133                            nibbletab[(addr[i] >> 4) &0xf]);
 134 }
 135
 136 int __init macsonic_init(struct net_device* dev)
 137 {
 138         struct sonic_local* lp = netdev_priv(dev);
 139
 140         /* Allocate the entire chunk of memory for the descriptors.
 141            Note that this cannot cross a 64K boundary. */
 142         if ((lp->descriptors = dma_alloc_coherent(lp->device,
 143                     SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
 144                     &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
 145                 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
 146                 return -ENOMEM;
 147         }
 148
 149         /* Now set up the pointers to point to the appropriate places */
 150         lp->cda = lp->descriptors;
 151         lp->tda = lp->cda + (SIZEOF_SONIC_CDA
 152                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 153         lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
 154                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 155         lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
 156                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 157
 158         lp->cda_laddr = lp->descriptors_laddr;
 159         lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
 160                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 161         lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
 162                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 163         lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
 164                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 165
 166         dev->open = sonic_open;
 167         dev->stop = sonic_close;
 168         dev->hard_start_xmit = sonic_send_packet;
 169         dev->get_stats = sonic_get_stats;
 170         dev->set_multicast_list = &sonic_multicast_list;
 171         dev->tx_timeout = sonic_tx_timeout;
 172         dev->watchdog_timeo = TX_TIMEOUT;
 173
 174         /*
 175          * clear tally counter
 176          */
 177         SONIC_WRITE(SONIC_CRCT, 0xffff);
 178         SONIC_WRITE(SONIC_FAET, 0xffff);
 179         SONIC_WRITE(SONIC_MPT, 0xffff);
 180
 181         return 0;
 182 }
 183
 184 int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev)
 185 {
 186         struct sonic_local *lp = netdev_priv(dev);
 187         const int prom_addr = ONBOARD_SONIC_PROM_BASE;
 188         int i;
 189
 190         /* On NuBus boards we can sometimes look in the ROM resources.
 191            No such luck for comm-slot/onboard. */
 192         for(i = 0; i < 6; i++)
 193                 dev->dev_addr[i] = SONIC_READ_PROM(i);
 194
 195         /* Most of the time, the address is bit-reversed.  The NetBSD
 196            source has a rather long and detailed historical account of
 197            why this is so. */
 198         if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
 199             memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
 200             memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
 201             memcmp(dev->dev_addr, "\x00\x05\x02", 3))
 202                 bit_reverse_addr(dev->dev_addr);
 203         else
 204                 return 0;
 205
 206         /* If we still have what seems to be a bogus address, we'll
 207            look in the CAM.  The top entry should be ours. */
 208         /* Danger! This only works if MacOS has already initialized
 209            the card... */
 210         if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
 211             memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
 212             memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
 213             memcmp(dev->dev_addr, "\x00\x05\x02", 3))
 214         {
 215                 unsigned short val;
 216
 217                 printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n");
 218
 219                 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 220                 SONIC_WRITE(SONIC_CEP, 15);
 221
 222                 val = SONIC_READ(SONIC_CAP2);
 223                 dev->dev_addr[5] = val >> 8;
 224                 dev->dev_addr[4] = val & 0xff;
 225                 val = SONIC_READ(SONIC_CAP1);
 226                 dev->dev_addr[3] = val >> 8;
 227                 dev->dev_addr[2] = val & 0xff;
 228                 val = SONIC_READ(SONIC_CAP0);
 229                 dev->dev_addr[1] = val >> 8;
 230                 dev->dev_addr[0] = val & 0xff;
 231
 232                 printk(KERN_INFO "HW Address from CAM 15: ");
 233                 for (i = 0; i < 6; i++) {
 234                         printk("%2.2x", dev->dev_addr[i]);
 235                         if (i < 5)
 236                                 printk(":");
 237                 }
 238                 printk("\n");
 239         } else return 0;
 240
 241         if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
 242             memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
 243             memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
 244             memcmp(dev->dev_addr, "\x00\x05\x02", 3))
 245         {
 246                 /*
 247                  * Still nonsense ... messed up someplace!
 248                  */
 249                 printk(KERN_ERR "macsonic: ERROR (INVALID MAC)\n");
 250                 return -EIO;
 251         } else return 0;
 252 }
 253
 254 int __init mac_onboard_sonic_probe(struct net_device* dev)
 255 {
 256         /* Bwahahaha */
 257         static int once_is_more_than_enough;
 258         struct sonic_local* lp = netdev_priv(dev);
 259         int sr;
 260         int commslot = 0;
 261
 262         if (once_is_more_than_enough)
 263                 return -ENODEV;
 264         once_is_more_than_enough = 1;
 265
 266         if (!MACH_IS_MAC)
 267                 return -ENODEV;
 268
 269         if (macintosh_config->ether_type != MAC_ETHER_SONIC)
 270                 return -ENODEV;
 271
 272         printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
 273
 274         /* Bogus probing, on the models which may or may not have
 275            Ethernet (BTW, the Ethernet *is* always at the same
 276            address, and nothing else lives there, at least if Apple's
 277            documentation is to be believed) */
 278         if (macintosh_config->ident == MAC_MODEL_Q630 ||
 279             macintosh_config->ident == MAC_MODEL_P588 ||
 280             macintosh_config->ident == MAC_MODEL_P575 ||
 281             macintosh_config->ident == MAC_MODEL_C610) {
 282                 unsigned long flags;
 283                 int card_present;
 284
 285                 local_irq_save(flags);
 286                 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
 287                 local_irq_restore(flags);
 288
 289                 if (!card_present) {
 290                         printk("none.\n");
 291                         return -ENODEV;
 292                 }
 293                 commslot = 1;
 294         }
 295
 296         printk("yes\n");
 297
 298         /* Danger!  My arms are flailing wildly!  You *must* set lp->reg_offset
 299          * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
 300         dev->base_addr = ONBOARD_SONIC_REGISTERS;
 301         if (via_alt_mapping)
 302                 dev->irq = IRQ_AUTO_3;
 303         else
 304                 dev->irq = IRQ_NUBUS_9;
 305
 306         if (!sonic_version_printed) {
 307                 printk(KERN_INFO "%s", version);
 308                 sonic_version_printed = 1;
 309         }
 310         printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
 311                lp->device->bus_id, dev->base_addr);
 312
 313         /* The PowerBook's SONIC is 16 bit always. */
 314         if (macintosh_config->ident == MAC_MODEL_PB520) {
 315                 lp->reg_offset = 0;
 316                 lp->dma_bitmode = SONIC_BITMODE16;
 317                 sr = SONIC_READ(SONIC_SR);
 318         } else if (commslot) {
 319                 /* Some of the comm-slot cards are 16 bit.  But some
 320                    of them are not.  The 32-bit cards use offset 2 and
 321                    have known revisions, we try reading the revision
 322                    register at offset 2, if we don't get a known revision
 323                    we assume 16 bit at offset 0.  */
 324                 lp->reg_offset = 2;
 325                 lp->dma_bitmode = SONIC_BITMODE16;
 326
 327                 sr = SONIC_READ(SONIC_SR);
 328                 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
 329                         /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
 330                         lp->dma_bitmode = SONIC_BITMODE32;
 331                 else {
 332                         lp->dma_bitmode = SONIC_BITMODE16;
 333                         lp->reg_offset = 0;
 334                         sr = SONIC_READ(SONIC_SR);
 335                 }
 336         } else {
 337                 /* All onboard cards are at offset 2 with 32 bit DMA. */
 338                 lp->reg_offset = 2;
 339                 lp->dma_bitmode = SONIC_BITMODE32;
 340                 sr = SONIC_READ(SONIC_SR);
 341         }
 342         printk(KERN_INFO
 343                "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
 344                lp->device->bus_id, sr, lp->dma_bitmode?32:16, lp->reg_offset);
 345
 346 #if 0 /* This is sometimes useful to find out how MacOS configured the card. */
 347         printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
 348                SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
 349 #endif
 350
 351         /* Software reset, then initialize control registers. */
 352         SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 353
 354         SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
 355                                SONIC_DCR_RFT1  | SONIC_DCR_TFT0 |
 356                                (lp->dma_bitmode ? SONIC_DCR_DW : 0));
 357
 358         /* This *must* be written back to in order to restore the
 359          * extended programmable output bits, as it may not have been
 360          * initialised since the hardware reset. */
 361         SONIC_WRITE(SONIC_DCR2, 0);
 362
 363         /* Clear *and* disable interrupts to be on the safe side */
 364         SONIC_WRITE(SONIC_IMR, 0);
 365         SONIC_WRITE(SONIC_ISR, 0x7fff);
 366
 367         /* Now look for the MAC address. */
 368         if (mac_onboard_sonic_ethernet_addr(dev) != 0)
 369                 return -ENODEV;
 370
 371         /* Shared init code */
 372         return macsonic_init(dev);
 373 }
 374
 375 int __init mac_nubus_sonic_ethernet_addr(struct net_device* dev,
 376                                          unsigned long prom_addr,
 377                                          int id)
 378 {
 379         int i;
 380         for(i = 0; i < 6; i++)
 381                 dev->dev_addr[i] = SONIC_READ_PROM(i);
 382
 383         /* Some of the addresses are bit-reversed */
 384         if (id != MACSONIC_DAYNA)
 385                 bit_reverse_addr(dev->dev_addr);
 386
 387         return 0;
 388 }
 389
 390 int __init macsonic_ident(struct nubus_dev* ndev)
 391 {
 392         if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
 393             ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
 394                 return MACSONIC_DAYNALINK;
 395         if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
 396             ndev->dr_sw == NUBUS_DRSW_APPLE) {
 397                 /* There has to be a better way to do this... */
 398                 if (strstr(ndev->board->name, "DuoDock"))
 399                         return MACSONIC_DUODOCK;
 400                 else
 401                         return MACSONIC_APPLE;
 402         }
 403
 404         if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
 405             ndev->dr_sw == NUBUS_DRSW_DAYNA)
 406                 return MACSONIC_DAYNA;
 407
 408         if (ndev->dr_hw == NUBUS_DRHW_SONIC_LC &&
 409             ndev->dr_sw == 0) { /* huh? */
 410                 return MACSONIC_APPLE16;
 411         }
 412         return -1;
 413 }
 414
 415 int __init mac_nubus_sonic_probe(struct net_device* dev)
 416 {
 417         static int slots;
 418         struct nubus_dev* ndev = NULL;
 419         struct sonic_local* lp = netdev_priv(dev);
 420         unsigned long base_addr, prom_addr;
 421         u16 sonic_dcr;
 422         int id = -1;
 423         int reg_offset, dma_bitmode;
 424
 425         /* Find the first SONIC that hasn't been initialized already */
 426         while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
 427                                        NUBUS_TYPE_ETHERNET, ndev)) != NULL)
 428         {
 429                 /* Have we seen it already? */
 430                 if (slots & (1<<ndev->board->slot))
 431                         continue;
 432                 slots |= 1<<ndev->board->slot;
 433
 434                 /* Is it one of ours? */
 435                 if ((id = macsonic_ident(ndev)) != -1)
 436                         break;
 437         }
 438
 439         if (ndev == NULL)
 440                 return -ENODEV;
 441
 442         switch (id) {
 443         case MACSONIC_DUODOCK:
 444                 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
 445                 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
 446                 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
 447                             SONIC_DCR_TFT0;
 448                 reg_offset = 2;
 449                 dma_bitmode = SONIC_BITMODE32;
 450                 break;
 451         case MACSONIC_APPLE:
 452                 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
 453                 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
 454                 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
 455                 reg_offset = 0;
 456                 dma_bitmode = SONIC_BITMODE32;
 457                 break;
 458         case MACSONIC_APPLE16:
 459                 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
 460                 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
 461                 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
 462                             SONIC_DCR_PO1 | SONIC_DCR_BMS;
 463                 reg_offset = 0;
 464                 dma_bitmode = SONIC_BITMODE16;
 465                 break;
 466         case MACSONIC_DAYNALINK:
 467                 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
 468                 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
 469                 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
 470                             SONIC_DCR_PO1 | SONIC_DCR_BMS;
 471                 reg_offset = 0;
 472                 dma_bitmode = SONIC_BITMODE16;
 473                 break;
 474         case MACSONIC_DAYNA:
 475                 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
 476                 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
 477                 sonic_dcr = SONIC_DCR_BMS |
 478                             SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
 479                 reg_offset = 0;
 480                 dma_bitmode = SONIC_BITMODE16;
 481                 break;
 482         default:
 483                 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
 484                 return -ENODEV;
 485         }
 486
 487         /* Danger!  My arms are flailing wildly!  You *must* set lp->reg_offset
 488          * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
 489         dev->base_addr = base_addr;
 490         lp->reg_offset = reg_offset;
 491         lp->dma_bitmode = dma_bitmode;
 492         dev->irq = SLOT2IRQ(ndev->board->slot);
 493
 494         if (!sonic_version_printed) {
 495                 printk(KERN_INFO "%s", version);
 496                 sonic_version_printed = 1;
 497         }
 498         printk(KERN_INFO "%s: %s in slot %X\n",
 499                lp->device->bus_id, ndev->board->name, ndev->board->slot);
 500         printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
 501                lp->device->bus_id, SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
 502
 503 #if 0 /* This is sometimes useful to find out how MacOS configured the card. */
 504         printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
 505                SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
 506 #endif
 507
 508         /* Software reset, then initialize control registers. */
 509         SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 510         SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
 511         /* This *must* be written back to in order to restore the
 512          * extended programmable output bits, since it may not have been
 513          * initialised since the hardware reset. */
 514         SONIC_WRITE(SONIC_DCR2, 0);
 515
 516         /* Clear *and* disable interrupts to be on the safe side */
 517         SONIC_WRITE(SONIC_IMR, 0);
 518         SONIC_WRITE(SONIC_ISR, 0x7fff);
 519
 520         /* Now look for the MAC address. */
 521         if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
 522                 return -ENODEV;
 523
 524         /* Shared init code */
 525         return macsonic_init(dev);
 526 }
 527
 528 static int __init mac_sonic_probe(struct device *device)
 529 {
 530         struct net_device *dev;
 531         struct sonic_local *lp;
 532         int err;
 533         int i;
 534
 535         dev = alloc_etherdev(sizeof(struct sonic_local));
 536         if (!dev)
 537                 return -ENOMEM;
 538
 539         lp = netdev_priv(dev);
 540         lp->device = device;
 541         SET_NETDEV_DEV(dev, device);
 542         SET_MODULE_OWNER(dev);
 543
 544         /* This will catch fatal stuff like -ENOMEM as well as success */
 545         err = mac_onboard_sonic_probe(dev);
 546         if (err == 0)
 547                 goto found;
 548         if (err != -ENODEV)
 549                 goto out;
 550         err = mac_nubus_sonic_probe(dev);
 551         if (err)
 552                 goto out;
 553 found:
 554         err = register_netdev(dev);
 555         if (err)
 556                 goto out;
 557
 558         printk("%s: MAC ", dev->name);
 559         for (i = 0; i < 6; i++) {
 560                 printk("%2.2x", dev->dev_addr[i]);
 561                 if (i < 5)
 562                         printk(":");
 563         }
 564         printk(" IRQ %d\n", dev->irq);
 565
 566         return 0;
 567
 568 out:
 569         free_netdev(dev);
 570
 571         return err;
 572 }
 573
 574 MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
 575 module_param(sonic_debug, int, 0);
 576 MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
 577
 578 #define SONIC_IRQ_FLAG IRQ_FLG_FAST
 579
 580 #include "sonic.c"
 581
 582 static int __devexit mac_sonic_device_remove (struct device *device)
 583 {
 584         struct net_device *dev = device->driver_data;
 585         struct sonic_local* lp = netdev_priv(dev);
 586
 587         unregister_netdev (dev);
 588         dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
 589                           lp->descriptors, lp->descriptors_laddr);
 590         free_netdev (dev);
 591
 592         return 0;
 593 }
 594
 595 static struct device_driver mac_sonic_driver = {
 596         .name   = mac_sonic_string,
 597         .bus    = &platform_bus_type,
 598         .probe  = mac_sonic_probe,
 599         .remove = __devexit_p(mac_sonic_device_remove),
 600 };
 601
 602 static void mac_sonic_platform_release(struct device *device)
 603 {
 604         struct platform_device *pldev;
 605
 606         /* free device */
 607         pldev = to_platform_device (device);
 608         kfree (pldev);
 609 }
 610
 611 static int __init mac_sonic_init_module(void)
 612 {
 613         struct platform_device *pldev;
 614         int err;
 615
 616         if ((err = driver_register(&mac_sonic_driver))) {
 617                 printk(KERN_ERR "Driver registration failed\n");
 618                 return err;
 619         }
 620
 621         mac_sonic_device = NULL;
 622
 623         if (!(pldev = kmalloc (sizeof (*pldev), GFP_KERNEL))) {
 624                 goto out_unregister;
 625         }
 626
 627         memset(pldev, 0, sizeof (*pldev));
 628         pldev->name             = mac_sonic_string;
 629         pldev->id               = 0;
 630         pldev->dev.release      = mac_sonic_platform_release;
 631         mac_sonic_device        = pldev;
 632
 633         if (platform_device_register (pldev)) {
 634                 kfree(pldev);
 635                 mac_sonic_device = NULL;
 636         }
 637
 638         return 0;
 639
 640 out_unregister:
 641         platform_device_unregister(pldev);
 642
 643         return -ENOMEM;
 644 }
 645
 646 static void __exit mac_sonic_cleanup_module(void)
 647 {
 648         driver_unregister(&mac_sonic_driver);
 649
 650         if (mac_sonic_device) {
 651                 platform_device_unregister(mac_sonic_device);
 652                 mac_sonic_device = NULL;
 653         }
 654 }
 655
 656 module_init(mac_sonic_init_module);
 657 module_exit(mac_sonic_cleanup_module);