drivers/net/ethernet/natsemi/macsonic.c

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
bit_reverse_addr
macsonic_interrupt
macsonic_open
macsonic_close
macsonic_init
mac_onboard_sonic_ethernet_addr
mac_onboard_sonic_probe
mac_sonic_nubus_ethernet_addr
macsonic_ident
mac_sonic_nubus_probe_board
mac_sonic_platform_probe
mac_sonic_platform_remove
mac_sonic_nubus_probe
mac_sonic_nubus_remove
mac_sonic_init
mac_sonic_exit
   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * macsonic.c
   4  *
   5  * (C) 2005 Finn Thain
   6  *
   7  * Converted to DMA API, converted to unified driver model, made it work as
   8  * a module again, and from the mac68k project, introduced more 32-bit cards
   9  * and dhd's support for 16-bit cards.
  10  *
  11  * (C) 1998 Alan Cox
  12  *
  13  * Debugging Andreas Ehliar, Michael Schmitz
  14  *
  15  * Based on code
  16  * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de)
  17  *
  18  * This driver is based on work from Andreas Busse, but most of
  19  * the code is rewritten.
  20  *
  21  * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
  22  *
  23  * A driver for the Mac onboard Sonic ethernet chip.
  24  *
  25  * 98/12/21 MSch: judged from tests on Q800, it's basically working,
  26  *                but eating up both receive and transmit resources
  27  *                and duplicating packets. Needs more testing.
  28  *
  29  * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed.
  30  *
  31  * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems
  32  *          on centris.
  33  */
  34 
  35 #include <linux/kernel.h>
  36 #include <linux/module.h>
  37 #include <linux/types.h>
  38 #include <linux/fcntl.h>
  39 #include <linux/gfp.h>
  40 #include <linux/interrupt.h>
  41 #include <linux/ioport.h>
  42 #include <linux/in.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/platform_device.h>
  51 #include <linux/dma-mapping.h>
  52 #include <linux/bitrev.h>
  53 #include <linux/slab.h>
  54 
  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 #include "sonic.h"
  64 
  65 /* These should basically be bus-size and endian independent (since
  66    the SONIC is at least smart enough that it uses the same endianness
  67    as the host, unlike certain less enlightened Macintosh NICs) */
  68 #define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
  69               + lp->reg_offset))
  70 #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
  71               + lp->reg_offset))
  72 
  73 /* For onboard SONIC */
  74 #define ONBOARD_SONIC_REGISTERS 0x50F0A000
  75 #define ONBOARD_SONIC_PROM_BASE 0x50f08000
  76 
  77 enum macsonic_type {
  78         MACSONIC_DUODOCK,
  79         MACSONIC_APPLE,
  80         MACSONIC_APPLE16,
  81         MACSONIC_DAYNA,
  82         MACSONIC_DAYNALINK
  83 };
  84 
  85 /* For the built-in SONIC in the Duo Dock */
  86 #define DUODOCK_SONIC_REGISTERS 0xe10000
  87 #define DUODOCK_SONIC_PROM_BASE 0xe12000
  88 
  89 /* For Apple-style NuBus SONIC */
  90 #define APPLE_SONIC_REGISTERS   0
  91 #define APPLE_SONIC_PROM_BASE   0x40000
  92 
  93 /* Daynalink LC SONIC */
  94 #define DAYNALINK_PROM_BASE 0x400000
  95 
  96 /* For Dayna-style NuBus SONIC (haven't seen one yet) */
  97 #define DAYNA_SONIC_REGISTERS   0x180000
  98 /* This is what OpenBSD says.  However, this is definitely in NuBus
  99    ROM space so we should be able to get it by walking the NuBus
 100    resource directories */
 101 #define DAYNA_SONIC_MAC_ADDR    0xffe004
 102 
 103 #define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
 104 
 105 /*
 106  * For reversing the PROM address
 107  */
 108 
 109 static inline void bit_reverse_addr(unsigned char addr[6])
 110 {
 111         int i;
 112 
 113         for(i = 0; i < 6; i++)
 114                 addr[i] = bitrev8(addr[i]);
 115 }
 116 
 117 static irqreturn_t macsonic_interrupt(int irq, void *dev_id)
 118 {
 119         irqreturn_t result;
 120         unsigned long flags;
 121 
 122         local_irq_save(flags);
 123         result = sonic_interrupt(irq, dev_id);
 124         local_irq_restore(flags);
 125         return result;
 126 }
 127 
 128 static int macsonic_open(struct net_device* dev)
 129 {
 130         int retval;
 131 
 132         retval = request_irq(dev->irq, sonic_interrupt, 0, "sonic", dev);
 133         if (retval) {
 134                 printk(KERN_ERR "%s: unable to get IRQ %d.\n",
 135                                 dev->name, dev->irq);
 136                 goto err;
 137         }
 138         /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes
 139          * in at priority level 3. However, we sometimes get the level 2 inter-
 140          * rupt as well, which must prevent re-entrance of the sonic handler.
 141          */
 142         if (dev->irq == IRQ_AUTO_3) {
 143                 retval = request_irq(IRQ_NUBUS_9, macsonic_interrupt, 0,
 144                                      "sonic", dev);
 145                 if (retval) {
 146                         printk(KERN_ERR "%s: unable to get IRQ %d.\n",
 147                                         dev->name, IRQ_NUBUS_9);
 148                         goto err_irq;
 149                 }
 150         }
 151         retval = sonic_open(dev);
 152         if (retval)
 153                 goto err_irq_nubus;
 154         return 0;
 155 
 156 err_irq_nubus:
 157         if (dev->irq == IRQ_AUTO_3)
 158                 free_irq(IRQ_NUBUS_9, dev);
 159 err_irq:
 160         free_irq(dev->irq, dev);
 161 err:
 162         return retval;
 163 }
 164 
 165 static int macsonic_close(struct net_device* dev)
 166 {
 167         int err;
 168         err = sonic_close(dev);
 169         free_irq(dev->irq, dev);
 170         if (dev->irq == IRQ_AUTO_3)
 171                 free_irq(IRQ_NUBUS_9, dev);
 172         return err;
 173 }
 174 
 175 static const struct net_device_ops macsonic_netdev_ops = {
 176         .ndo_open               = macsonic_open,
 177         .ndo_stop               = macsonic_close,
 178         .ndo_start_xmit         = sonic_send_packet,
 179         .ndo_set_rx_mode        = sonic_multicast_list,
 180         .ndo_tx_timeout         = sonic_tx_timeout,
 181         .ndo_get_stats          = sonic_get_stats,
 182         .ndo_validate_addr      = eth_validate_addr,
 183         .ndo_set_mac_address    = eth_mac_addr,
 184 };
 185 
 186 static int macsonic_init(struct net_device *dev)
 187 {
 188         struct sonic_local* lp = netdev_priv(dev);
 189 
 190         /* Allocate the entire chunk of memory for the descriptors.
 191            Note that this cannot cross a 64K boundary. */
 192         lp->descriptors = dma_alloc_coherent(lp->device,
 193                                              SIZEOF_SONIC_DESC *
 194                                              SONIC_BUS_SCALE(lp->dma_bitmode),
 195                                              &lp->descriptors_laddr,
 196                                              GFP_KERNEL);
 197         if (lp->descriptors == NULL)
 198                 return -ENOMEM;
 199 
 200         /* Now set up the pointers to point to the appropriate places */
 201         lp->cda = lp->descriptors;
 202         lp->tda = lp->cda + (SIZEOF_SONIC_CDA
 203                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 204         lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
 205                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 206         lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
 207                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 208 
 209         lp->cda_laddr = lp->descriptors_laddr;
 210         lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
 211                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 212         lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
 213                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 214         lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
 215                              * SONIC_BUS_SCALE(lp->dma_bitmode));
 216 
 217         dev->netdev_ops = &macsonic_netdev_ops;
 218         dev->watchdog_timeo = TX_TIMEOUT;
 219 
 220         /*
 221          * clear tally counter
 222          */
 223         SONIC_WRITE(SONIC_CRCT, 0xffff);
 224         SONIC_WRITE(SONIC_FAET, 0xffff);
 225         SONIC_WRITE(SONIC_MPT, 0xffff);
 226 
 227         return 0;
 228 }
 229 
 230 #define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \
 231                           memcmp(mac, "\x00\xA0\x40", 3) && \
 232                           memcmp(mac, "\x00\x80\x19", 3) && \
 233                           memcmp(mac, "\x00\x05\x02", 3))
 234 
 235 static void mac_onboard_sonic_ethernet_addr(struct net_device *dev)
 236 {
 237         struct sonic_local *lp = netdev_priv(dev);
 238         const int prom_addr = ONBOARD_SONIC_PROM_BASE;
 239         unsigned short val;
 240 
 241         /*
 242          * On NuBus boards we can sometimes look in the ROM resources.
 243          * No such luck for comm-slot/onboard.
 244          * On the PowerBook 520, the PROM base address is a mystery.
 245          */
 246         if (hwreg_present((void *)prom_addr)) {
 247                 int i;
 248 
 249                 for (i = 0; i < 6; i++)
 250                         dev->dev_addr[i] = SONIC_READ_PROM(i);
 251                 if (!INVALID_MAC(dev->dev_addr))
 252                         return;
 253 
 254                 /*
 255                  * Most of the time, the address is bit-reversed. The NetBSD
 256                  * source has a rather long and detailed historical account of
 257                  * why this is so.
 258                  */
 259                 bit_reverse_addr(dev->dev_addr);
 260                 if (!INVALID_MAC(dev->dev_addr))
 261                         return;
 262 
 263                 /*
 264                  * If we still have what seems to be a bogus address, we'll
 265                  * look in the CAM. The top entry should be ours.
 266                  */
 267                 printk(KERN_WARNING "macsonic: MAC address in PROM seems "
 268                                     "to be invalid, trying CAM\n");
 269         } else {
 270                 printk(KERN_WARNING "macsonic: cannot read MAC address from "
 271                                     "PROM, trying CAM\n");
 272         }
 273 
 274         /* This only works if MacOS has already initialized the card. */
 275 
 276         SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 277         SONIC_WRITE(SONIC_CEP, 15);
 278 
 279         val = SONIC_READ(SONIC_CAP2);
 280         dev->dev_addr[5] = val >> 8;
 281         dev->dev_addr[4] = val & 0xff;
 282         val = SONIC_READ(SONIC_CAP1);
 283         dev->dev_addr[3] = val >> 8;
 284         dev->dev_addr[2] = val & 0xff;
 285         val = SONIC_READ(SONIC_CAP0);
 286         dev->dev_addr[1] = val >> 8;
 287         dev->dev_addr[0] = val & 0xff;
 288 
 289         if (!INVALID_MAC(dev->dev_addr))
 290                 return;
 291 
 292         /* Still nonsense ... messed up someplace! */
 293 
 294         printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 "
 295                             "seems invalid, will use a random MAC\n");
 296         eth_hw_addr_random(dev);
 297 }
 298 
 299 static int mac_onboard_sonic_probe(struct net_device *dev)
 300 {
 301         struct sonic_local* lp = netdev_priv(dev);
 302         int sr;
 303         bool commslot = macintosh_config->expansion_type == MAC_EXP_PDS_COMM;
 304 
 305         /* Bogus probing, on the models which may or may not have
 306            Ethernet (BTW, the Ethernet *is* always at the same
 307            address, and nothing else lives there, at least if Apple's
 308            documentation is to be believed) */
 309         if (commslot || macintosh_config->ident == MAC_MODEL_C610) {
 310                 int card_present;
 311 
 312                 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
 313                 if (!card_present) {
 314                         pr_info("Onboard/comm-slot SONIC not found\n");
 315                         return -ENODEV;
 316                 }
 317         }
 318 
 319         /* Danger!  My arms are flailing wildly!  You *must* set lp->reg_offset
 320          * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
 321         dev->base_addr = ONBOARD_SONIC_REGISTERS;
 322         if (via_alt_mapping)
 323                 dev->irq = IRQ_AUTO_3;
 324         else
 325                 dev->irq = IRQ_NUBUS_9;
 326 
 327         /* The PowerBook's SONIC is 16 bit always. */
 328         if (macintosh_config->ident == MAC_MODEL_PB520) {
 329                 lp->reg_offset = 0;
 330                 lp->dma_bitmode = SONIC_BITMODE16;
 331         } else if (commslot) {
 332                 /* Some of the comm-slot cards are 16 bit.  But some
 333                    of them are not.  The 32-bit cards use offset 2 and
 334                    have known revisions, we try reading the revision
 335                    register at offset 2, if we don't get a known revision
 336                    we assume 16 bit at offset 0.  */
 337                 lp->reg_offset = 2;
 338                 lp->dma_bitmode = SONIC_BITMODE16;
 339 
 340                 sr = SONIC_READ(SONIC_SR);
 341                 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
 342                         /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
 343                         lp->dma_bitmode = SONIC_BITMODE32;
 344                 else {
 345                         lp->dma_bitmode = SONIC_BITMODE16;
 346                         lp->reg_offset = 0;
 347                 }
 348         } else {
 349                 /* All onboard cards are at offset 2 with 32 bit DMA. */
 350                 lp->reg_offset = 2;
 351                 lp->dma_bitmode = SONIC_BITMODE32;
 352         }
 353 
 354         pr_info("Onboard/comm-slot SONIC, revision 0x%04x, %d bit DMA, register offset %d\n",
 355                 SONIC_READ(SONIC_SR), lp->dma_bitmode ? 32 : 16,
 356                 lp->reg_offset);
 357 
 358         /* This is sometimes useful to find out how MacOS configured the card */
 359         pr_debug("%s: DCR=0x%04x, DCR2=0x%04x\n", __func__,
 360                  SONIC_READ(SONIC_DCR) & 0xffff,
 361                  SONIC_READ(SONIC_DCR2) & 0xffff);
 362 
 363         /* Software reset, then initialize control registers. */
 364         SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 365 
 366         SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
 367                                SONIC_DCR_RFT1  | SONIC_DCR_TFT0 |
 368                                (lp->dma_bitmode ? SONIC_DCR_DW : 0));
 369 
 370         /* This *must* be written back to in order to restore the
 371          * extended programmable output bits, as it may not have been
 372          * initialised since the hardware reset. */
 373         SONIC_WRITE(SONIC_DCR2, 0);
 374 
 375         /* Clear *and* disable interrupts to be on the safe side */
 376         SONIC_WRITE(SONIC_IMR, 0);
 377         SONIC_WRITE(SONIC_ISR, 0x7fff);
 378 
 379         /* Now look for the MAC address. */
 380         mac_onboard_sonic_ethernet_addr(dev);
 381 
 382         pr_info("SONIC ethernet @%08lx, MAC %pM, IRQ %d\n",
 383                 dev->base_addr, dev->dev_addr, dev->irq);
 384 
 385         /* Shared init code */
 386         return macsonic_init(dev);
 387 }
 388 
 389 static int mac_sonic_nubus_ethernet_addr(struct net_device *dev,
 390                                          unsigned long prom_addr, int id)
 391 {
 392         int i;
 393         for(i = 0; i < 6; i++)
 394                 dev->dev_addr[i] = SONIC_READ_PROM(i);
 395 
 396         /* Some of the addresses are bit-reversed */
 397         if (id != MACSONIC_DAYNA)
 398                 bit_reverse_addr(dev->dev_addr);
 399 
 400         return 0;
 401 }
 402 
 403 static int macsonic_ident(struct nubus_rsrc *fres)
 404 {
 405         if (fres->dr_hw == NUBUS_DRHW_ASANTE_LC &&
 406             fres->dr_sw == NUBUS_DRSW_SONIC_LC)
 407                 return MACSONIC_DAYNALINK;
 408         if (fres->dr_hw == NUBUS_DRHW_SONIC &&
 409             fres->dr_sw == NUBUS_DRSW_APPLE) {
 410                 /* There has to be a better way to do this... */
 411                 if (strstr(fres->board->name, "DuoDock"))
 412                         return MACSONIC_DUODOCK;
 413                 else
 414                         return MACSONIC_APPLE;
 415         }
 416 
 417         if (fres->dr_hw == NUBUS_DRHW_SMC9194 &&
 418             fres->dr_sw == NUBUS_DRSW_DAYNA)
 419                 return MACSONIC_DAYNA;
 420 
 421         if (fres->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
 422             fres->dr_sw == 0) { /* huh? */
 423                 return MACSONIC_APPLE16;
 424         }
 425         return -1;
 426 }
 427 
 428 static int mac_sonic_nubus_probe_board(struct nubus_board *board, int id,
 429                                        struct net_device *dev)
 430 {
 431         struct sonic_local* lp = netdev_priv(dev);
 432         unsigned long base_addr, prom_addr;
 433         u16 sonic_dcr;
 434         int reg_offset, dma_bitmode;
 435 
 436         switch (id) {
 437         case MACSONIC_DUODOCK:
 438                 base_addr = board->slot_addr + DUODOCK_SONIC_REGISTERS;
 439                 prom_addr = board->slot_addr + DUODOCK_SONIC_PROM_BASE;
 440                 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
 441                             SONIC_DCR_TFT0;
 442                 reg_offset = 2;
 443                 dma_bitmode = SONIC_BITMODE32;
 444                 break;
 445         case MACSONIC_APPLE:
 446                 base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
 447                 prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE;
 448                 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
 449                 reg_offset = 0;
 450                 dma_bitmode = SONIC_BITMODE32;
 451                 break;
 452         case MACSONIC_APPLE16:
 453                 base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
 454                 prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE;
 455                 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
 456                             SONIC_DCR_PO1 | SONIC_DCR_BMS;
 457                 reg_offset = 0;
 458                 dma_bitmode = SONIC_BITMODE16;
 459                 break;
 460         case MACSONIC_DAYNALINK:
 461                 base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
 462                 prom_addr = board->slot_addr + DAYNALINK_PROM_BASE;
 463                 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
 464                             SONIC_DCR_PO1 | SONIC_DCR_BMS;
 465                 reg_offset = 0;
 466                 dma_bitmode = SONIC_BITMODE16;
 467                 break;
 468         case MACSONIC_DAYNA:
 469                 base_addr = board->slot_addr + DAYNA_SONIC_REGISTERS;
 470                 prom_addr = board->slot_addr + DAYNA_SONIC_MAC_ADDR;
 471                 sonic_dcr = SONIC_DCR_BMS |
 472                             SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
 473                 reg_offset = 0;
 474                 dma_bitmode = SONIC_BITMODE16;
 475                 break;
 476         default:
 477                 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
 478                 return -ENODEV;
 479         }
 480 
 481         /* Danger!  My arms are flailing wildly!  You *must* set lp->reg_offset
 482          * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
 483         dev->base_addr = base_addr;
 484         lp->reg_offset = reg_offset;
 485         lp->dma_bitmode = dma_bitmode;
 486         dev->irq = SLOT2IRQ(board->slot);
 487 
 488         dev_info(&board->dev, "%s, revision 0x%04x, %d bit DMA, register offset %d\n",
 489                  board->name, SONIC_READ(SONIC_SR),
 490                  lp->dma_bitmode ? 32 : 16, lp->reg_offset);
 491 
 492         /* This is sometimes useful to find out how MacOS configured the card */
 493         dev_dbg(&board->dev, "%s: DCR=0x%04x, DCR2=0x%04x\n", __func__,
 494                 SONIC_READ(SONIC_DCR) & 0xffff,
 495                 SONIC_READ(SONIC_DCR2) & 0xffff);
 496 
 497         /* Software reset, then initialize control registers. */
 498         SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 499         SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
 500         /* This *must* be written back to in order to restore the
 501          * extended programmable output bits, since it may not have been
 502          * initialised since the hardware reset. */
 503         SONIC_WRITE(SONIC_DCR2, 0);
 504 
 505         /* Clear *and* disable interrupts to be on the safe side */
 506         SONIC_WRITE(SONIC_IMR, 0);
 507         SONIC_WRITE(SONIC_ISR, 0x7fff);
 508 
 509         /* Now look for the MAC address. */
 510         if (mac_sonic_nubus_ethernet_addr(dev, prom_addr, id) != 0)
 511                 return -ENODEV;
 512 
 513         dev_info(&board->dev, "SONIC ethernet @%08lx, MAC %pM, IRQ %d\n",
 514                  dev->base_addr, dev->dev_addr, dev->irq);
 515 
 516         /* Shared init code */
 517         return macsonic_init(dev);
 518 }
 519 
 520 static int mac_sonic_platform_probe(struct platform_device *pdev)
 521 {
 522         struct net_device *dev;
 523         struct sonic_local *lp;
 524         int err;
 525 
 526         dev = alloc_etherdev(sizeof(struct sonic_local));
 527         if (!dev)
 528                 return -ENOMEM;
 529 
 530         lp = netdev_priv(dev);
 531         lp->device = &pdev->dev;
 532         SET_NETDEV_DEV(dev, &pdev->dev);
 533         platform_set_drvdata(pdev, dev);
 534 
 535         err = mac_onboard_sonic_probe(dev);
 536         if (err)
 537                 goto out;
 538 
 539         sonic_msg_init(dev);
 540 
 541         err = register_netdev(dev);
 542         if (err)
 543                 goto out;
 544 
 545         return 0;
 546 
 547 out:
 548         free_netdev(dev);
 549 
 550         return err;
 551 }
 552 
 553 MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
 554 MODULE_ALIAS("platform:macsonic");
 555 
 556 #include "sonic.c"
 557 
 558 static int mac_sonic_platform_remove(struct platform_device *pdev)
 559 {
 560         struct net_device *dev = platform_get_drvdata(pdev);
 561         struct sonic_local* lp = netdev_priv(dev);
 562 
 563         unregister_netdev(dev);
 564         dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
 565                           lp->descriptors, lp->descriptors_laddr);
 566         free_netdev(dev);
 567 
 568         return 0;
 569 }
 570 
 571 static struct platform_driver mac_sonic_platform_driver = {
 572         .probe  = mac_sonic_platform_probe,
 573         .remove = mac_sonic_platform_remove,
 574         .driver = {
 575                 .name = "macsonic",
 576         },
 577 };
 578 
 579 static int mac_sonic_nubus_probe(struct nubus_board *board)
 580 {
 581         struct net_device *ndev;
 582         struct sonic_local *lp;
 583         struct nubus_rsrc *fres;
 584         int id = -1;
 585         int err;
 586 
 587         /* The platform driver will handle a PDS or Comm Slot card (even if
 588          * it has a pseudoslot declaration ROM).
 589          */
 590         if (macintosh_config->expansion_type == MAC_EXP_PDS_COMM)
 591                 return -ENODEV;
 592 
 593         for_each_board_func_rsrc(board, fres) {
 594                 if (fres->category != NUBUS_CAT_NETWORK ||
 595                     fres->type != NUBUS_TYPE_ETHERNET)
 596                         continue;
 597 
 598                 id = macsonic_ident(fres);
 599                 if (id != -1)
 600                         break;
 601         }
 602         if (!fres)
 603                 return -ENODEV;
 604 
 605         ndev = alloc_etherdev(sizeof(struct sonic_local));
 606         if (!ndev)
 607                 return -ENOMEM;
 608 
 609         lp = netdev_priv(ndev);
 610         lp->device = &board->dev;
 611         SET_NETDEV_DEV(ndev, &board->dev);
 612 
 613         err = mac_sonic_nubus_probe_board(board, id, ndev);
 614         if (err)
 615                 goto out;
 616 
 617         sonic_msg_init(ndev);
 618 
 619         err = register_netdev(ndev);
 620         if (err)
 621                 goto out;
 622 
 623         nubus_set_drvdata(board, ndev);
 624 
 625         return 0;
 626 
 627 out:
 628         free_netdev(ndev);
 629         return err;
 630 }
 631 
 632 static int mac_sonic_nubus_remove(struct nubus_board *board)
 633 {
 634         struct net_device *ndev = nubus_get_drvdata(board);
 635         struct sonic_local *lp = netdev_priv(ndev);
 636 
 637         unregister_netdev(ndev);
 638         dma_free_coherent(lp->device,
 639                           SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
 640                           lp->descriptors, lp->descriptors_laddr);
 641         free_netdev(ndev);
 642 
 643         return 0;
 644 }
 645 
 646 static struct nubus_driver mac_sonic_nubus_driver = {
 647         .probe  = mac_sonic_nubus_probe,
 648         .remove = mac_sonic_nubus_remove,
 649         .driver = {
 650                 .name = "macsonic-nubus",
 651                 .owner = THIS_MODULE,
 652         },
 653 };
 654 
 655 static int perr, nerr;
 656 
 657 static int __init mac_sonic_init(void)
 658 {
 659         perr = platform_driver_register(&mac_sonic_platform_driver);
 660         nerr = nubus_driver_register(&mac_sonic_nubus_driver);
 661         return 0;
 662 }
 663 module_init(mac_sonic_init);
 664 
 665 static void __exit mac_sonic_exit(void)
 666 {
 667         if (!perr)
 668                 platform_driver_unregister(&mac_sonic_platform_driver);
 669         if (!nerr)
 670                 nubus_driver_unregister(&mac_sonic_nubus_driver);
 671 }
 672 module_exit(mac_sonic_exit);
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/ethernet/natsemi/macsonic.c

DEFINITIONS
