drivers/net/mac8390.c

   1 /* mac8390.c: New driver for 8390-based Nubus (or Nubus-alike)
   2    Ethernet cards on Linux */
   3 /* Based on the former daynaport.c driver, by Alan Cox.  Some code
   4    taken from or inspired by skeleton.c by Donald Becker, acenic.c by
   5    Jes Sorensen, and ne2k-pci.c by Donald Becker and Paul Gortmaker.
   6
   7    This software may be used and distributed according to the terms of
   8    the GNU Public License, incorporated herein by reference.  */
   9
  10 /* 2000-02-28: support added for Dayna and Kinetics cards by
  11    A.G.deWijn@phys.uu.nl */
  12 /* 2000-04-04: support added for Dayna2 by bart@etpmod.phys.tue.nl */
  13 /* 2001-04-18: support for DaynaPort E/LC-M by rayk@knightsmanor.org */
  14 /* 2001-05-15: support for Cabletron ported from old daynaport driver
  15  * and fixed access to Sonic Sys card which masquerades as a Farallon
  16  * by rayk@knightsmanor.org */
  17 /* 2002-12-30: Try to support more cards, some clues from NetBSD driver */
  18 /* 2003-12-26: Make sure Asante cards always work. */
  19
  20 #include <linux/module.h>
  21 #include <linux/kernel.h>
  22 #include <linux/types.h>
  23 #include <linux/fcntl.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/ptrace.h>
  26 #include <linux/ioport.h>
  27 #include <linux/nubus.h>
  28 #include <linux/in.h>
  29 #include <linux/slab.h>
  30 #include <linux/string.h>
  31 #include <linux/errno.h>
  32 #include <linux/init.h>
  33 #include <linux/netdevice.h>
  34 #include <linux/etherdevice.h>
  35 #include <linux/skbuff.h>
  36 #include <linux/bitops.h>
  37
  38 #include <asm/system.h>
  39 #include <asm/io.h>
  40 #include <asm/dma.h>
  41 #include <asm/hwtest.h>
  42 #include <asm/macints.h>
  43
  44 static char version[] =
  45         "mac8390.c: v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
  46
  47 #define EI_SHIFT(x)     (ei_local->reg_offset[x])
  48 #define ei_inb(port)   in_8(port)
  49 #define ei_outb(val,port)  out_8(port,val)
  50 #define ei_inb_p(port)   in_8(port)
  51 #define ei_outb_p(val,port)  out_8(port,val)
  52
  53 #include "lib8390.c"
  54
  55 #define WD_START_PG                     0x00    /* First page of TX buffer */
  56 #define CABLETRON_RX_START_PG           0x00    /* First page of RX buffer */
  57 #define CABLETRON_RX_STOP_PG            0x30    /* Last page +1 of RX ring */
  58 #define CABLETRON_TX_START_PG           CABLETRON_RX_STOP_PG  /* First page of TX buffer */
  59
  60 /* Unfortunately it seems we have to hardcode these for the moment */
  61 /* Shouldn't the card know about this? Does anyone know where to read it off the card? Do we trust the data provided by the card? */
  62
  63 #define DAYNA_8390_BASE         0x80000
  64 #define DAYNA_8390_MEM          0x00000
  65
  66 #define CABLETRON_8390_BASE     0x90000
  67 #define CABLETRON_8390_MEM      0x00000
  68
  69 #define INTERLAN_8390_BASE      0xE0000
  70 #define INTERLAN_8390_MEM       0xD0000
  71
  72 enum mac8390_type {
  73         MAC8390_NONE = -1,
  74         MAC8390_APPLE,
  75         MAC8390_ASANTE,
  76         MAC8390_FARALLON,
  77         MAC8390_CABLETRON,
  78         MAC8390_DAYNA,
  79         MAC8390_INTERLAN,
  80         MAC8390_KINETICS,
  81 };
  82
  83 static const char * cardname[] = {
  84         "apple",
  85         "asante",
  86         "farallon",
  87         "cabletron",
  88         "dayna",
  89         "interlan",
  90         "kinetics",
  91 };
  92
  93 static int word16[] = {
  94         1, /* apple */
  95         1, /* asante */
  96         1, /* farallon */
  97         1, /* cabletron */
  98         0, /* dayna */
  99         1, /* interlan */
 100         0, /* kinetics */
 101 };
 102
 103 /* on which cards do we use NuBus resources? */
 104 static int useresources[] = {
 105         1, /* apple */
 106         1, /* asante */
 107         1, /* farallon */
 108         0, /* cabletron */
 109         0, /* dayna */
 110         0, /* interlan */
 111         0, /* kinetics */
 112 };
 113
 114 enum mac8390_access {
 115         ACCESS_UNKNOWN = 0,
 116         ACCESS_32,
 117         ACCESS_16,
 118 };
 119
 120 extern enum mac8390_type mac8390_ident(struct nubus_dev * dev);
 121 extern int mac8390_memsize(unsigned long membase);
 122 extern int mac8390_memtest(struct net_device * dev);
 123 static int mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
 124                            enum mac8390_type type);
 125
 126 static int mac8390_open(struct net_device * dev);
 127 static int mac8390_close(struct net_device * dev);
 128 static void mac8390_no_reset(struct net_device *dev);
 129 static void interlan_reset(struct net_device *dev);
 130
 131 /* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/
 132 static void sane_get_8390_hdr(struct net_device *dev,
 133                               struct e8390_pkt_hdr *hdr, int ring_page);
 134 static void sane_block_input(struct net_device * dev, int count,
 135                              struct sk_buff * skb, int ring_offset);
 136 static void sane_block_output(struct net_device * dev, int count,
 137                               const unsigned char * buf, const int start_page);
 138
 139 /* dayna_memcpy to and from card */
 140 static void dayna_memcpy_fromcard(struct net_device *dev, void *to,
 141                                 int from, int count);
 142 static void dayna_memcpy_tocard(struct net_device *dev, int to,
 143                               const void *from, int count);
 144
 145 /* Dayna - Dayna/Kinetics use this */
 146 static void dayna_get_8390_hdr(struct net_device *dev,
 147                                struct e8390_pkt_hdr *hdr, int ring_page);
 148 static void dayna_block_input(struct net_device *dev, int count,
 149                               struct sk_buff *skb, int ring_offset);
 150 static void dayna_block_output(struct net_device *dev, int count,
 151                                const unsigned char *buf, int start_page);
 152
 153 #define memcpy_fromio(a,b,c)    memcpy((a),(void *)(b),(c))
 154 #define memcpy_toio(a,b,c)      memcpy((void *)(a),(b),(c))
 155
 156 /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */
 157 static void slow_sane_get_8390_hdr(struct net_device *dev,
 158                                    struct e8390_pkt_hdr *hdr, int ring_page);
 159 static void slow_sane_block_input(struct net_device *dev, int count,
 160                                   struct sk_buff *skb, int ring_offset);
 161 static void slow_sane_block_output(struct net_device *dev, int count,
 162                                    const unsigned char *buf, int start_page);
 163 static void word_memcpy_tocard(void *tp, const void *fp, int count);
 164 static void word_memcpy_fromcard(void *tp, const void *fp, int count);
 165
 166 enum mac8390_type __init mac8390_ident(struct nubus_dev * dev)
 167 {
 168         switch (dev->dr_sw) {
 169                 case NUBUS_DRSW_3COM:
 170                         switch (dev->dr_hw) {
 171                                 case NUBUS_DRHW_APPLE_SONIC_NB:
 172                                 case NUBUS_DRHW_APPLE_SONIC_LC:
 173                                 case NUBUS_DRHW_SONNET:
 174                                         return MAC8390_NONE;
 175                                         break;
 176                                 default:
 177                                         return MAC8390_APPLE;
 178                                         break;
 179                         }
 180                         break;
 181
 182                 case NUBUS_DRSW_APPLE:
 183                         switch (dev->dr_hw) {
 184                                 case NUBUS_DRHW_ASANTE_LC:
 185                                         return MAC8390_NONE;
 186                                         break;
 187                                 case NUBUS_DRHW_CABLETRON:
 188                                         return MAC8390_CABLETRON;
 189                                         break;
 190                                 default:
 191                                         return MAC8390_APPLE;
 192                                         break;
 193                         }
 194                         break;
 195
 196                 case NUBUS_DRSW_ASANTE:
 197                         return MAC8390_ASANTE;
 198                         break;
 199
 200                 case NUBUS_DRSW_TECHWORKS:
 201                 case NUBUS_DRSW_DAYNA2:
 202                 case NUBUS_DRSW_DAYNA_LC:
 203                         if (dev->dr_hw == NUBUS_DRHW_CABLETRON)
 204                                 return MAC8390_CABLETRON;
 205                         else
 206                                 return MAC8390_APPLE;
 207                         break;
 208
 209                 case NUBUS_DRSW_FARALLON:
 210                         return MAC8390_FARALLON;
 211                         break;
 212
 213                 case NUBUS_DRSW_KINETICS:
 214                         switch (dev->dr_hw) {
 215                                 case NUBUS_DRHW_INTERLAN:
 216                                         return MAC8390_INTERLAN;
 217                                         break;
 218                                 default:
 219                                         return MAC8390_KINETICS;
 220                                         break;
 221                         }
 222                         break;
 223
 224                 case NUBUS_DRSW_DAYNA:
 225                         // These correspond to Dayna Sonic cards
 226                         // which use the macsonic driver
 227                         if (dev->dr_hw == NUBUS_DRHW_SMC9194 ||
 228                                 dev->dr_hw == NUBUS_DRHW_INTERLAN )
 229                                 return MAC8390_NONE;
 230                         else
 231                                 return MAC8390_DAYNA;
 232                         break;
 233         }
 234         return MAC8390_NONE;
 235 }
 236
 237 enum mac8390_access __init mac8390_testio(volatile unsigned long membase)
 238 {
 239         unsigned long outdata = 0xA5A0B5B0;
 240         unsigned long indata =  0x00000000;
 241         /* Try writing 32 bits */
 242         memcpy((char *)membase, (char *)&outdata, 4);
 243         /* Now compare them */
 244         if (memcmp((char *)&outdata, (char *)membase, 4) == 0)
 245                 return ACCESS_32;
 246         /* Write 16 bit output */
 247         word_memcpy_tocard((char *)membase, (char *)&outdata, 4);
 248         /* Now read it back */
 249         word_memcpy_fromcard((char *)&indata, (char *)membase, 4);
 250         if (outdata == indata)
 251                 return ACCESS_16;
 252         return ACCESS_UNKNOWN;
 253 }
 254
 255 int __init mac8390_memsize(unsigned long membase)
 256 {
 257         unsigned long flags;
 258         int i, j;
 259
 260         local_irq_save(flags);
 261         /* Check up to 32K in 4K increments */
 262         for (i = 0; i < 8; i++) {
 263                 volatile unsigned short *m = (unsigned short *) (membase + (i * 0x1000));
 264
 265                 /* Unwriteable - we have a fully decoded card and the
 266                    RAM end located */
 267                 if (hwreg_present(m) == 0)
 268                         break;
 269
 270                 /* write a distinctive byte */
 271                 *m = 0xA5A0 | i;
 272                 /* check that we read back what we wrote */
 273                 if (*m != (0xA5A0 | i))
 274                         break;
 275
 276                 /* check for partial decode and wrap */
 277                 for (j = 0; j < i; j++) {
 278                         volatile unsigned short *p = (unsigned short *) (membase + (j * 0x1000));
 279                         if (*p != (0xA5A0 | j))
 280                                 break;
 281                 }
 282         }
 283         local_irq_restore(flags);
 284         /* in any case, we stopped once we tried one block too many,
 285            or once we reached 32K */
 286         return i * 0x1000;
 287 }
 288
 289 struct net_device * __init mac8390_probe(int unit)
 290 {
 291         struct net_device *dev;
 292         volatile unsigned short *i;
 293         int version_disp = 0;
 294         struct nubus_dev * ndev = NULL;
 295         int err = -ENODEV;
 296
 297         struct nubus_dir dir;
 298         struct nubus_dirent ent;
 299         int offset;
 300         static unsigned int slots;
 301
 302         enum mac8390_type cardtype;
 303
 304         /* probably should check for Nubus instead */
 305
 306         if (!MACH_IS_MAC)
 307                 return ERR_PTR(-ENODEV);
 308
 309         dev = ____alloc_ei_netdev(0);
 310         if (!dev)
 311                 return ERR_PTR(-ENOMEM);
 312
 313         if (unit >= 0)
 314                 sprintf(dev->name, "eth%d", unit);
 315
 316         while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) {
 317                 /* Have we seen it already? */
 318                 if (slots & (1<<ndev->board->slot))
 319                         continue;
 320                 slots |= 1<<ndev->board->slot;
 321
 322                 if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE)
 323                         continue;
 324
 325                 if (version_disp == 0) {
 326                         version_disp = 1;
 327                         printk(version);
 328                 }
 329
 330                 dev->irq = SLOT2IRQ(ndev->board->slot);
 331                 /* This is getting to be a habit */
 332                 dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20);
 333
 334                 /* Get some Nubus info - we will trust the card's idea
 335                    of where its memory and registers are. */
 336
 337                 if (nubus_get_func_dir(ndev, &dir) == -1) {
 338                         printk(KERN_ERR "%s: Unable to get Nubus functional"
 339                                         " directory for slot %X!\n",
 340                                dev->name, ndev->board->slot);
 341                         continue;
 342                 }
 343
 344                 /* Get the MAC address */
 345                 if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) {
 346                         printk(KERN_INFO "%s: Couldn't get MAC address!\n",
 347                                         dev->name);
 348                         continue;
 349                 } else {
 350                         nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
 351                 }
 352
 353                 if (useresources[cardtype] == 1) {
 354                         nubus_rewinddir(&dir);
 355                         if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) {
 356                                 printk(KERN_ERR "%s: Memory offset resource"
 357                                                 " for slot %X not found!\n",
 358                                        dev->name, ndev->board->slot);
 359                                 continue;
 360                         }
 361                         nubus_get_rsrc_mem(&offset, &ent, 4);
 362                         dev->mem_start = dev->base_addr + offset;
 363                         /* yes, this is how the Apple driver does it */
 364                         dev->base_addr = dev->mem_start + 0x10000;
 365                         nubus_rewinddir(&dir);
 366                         if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) {
 367                                 printk(KERN_INFO "%s: Memory length resource"
 368                                                  " for slot %X not found"
 369                                                  ", probing\n",
 370                                        dev->name, ndev->board->slot);
 371                                 offset = mac8390_memsize(dev->mem_start);
 372                                 } else {
 373                                         nubus_get_rsrc_mem(&offset, &ent, 4);
 374                                 }
 375                         dev->mem_end = dev->mem_start + offset;
 376                 } else {
 377                         switch (cardtype) {
 378                                 case MAC8390_KINETICS:
 379                                 case MAC8390_DAYNA: /* it's the same */
 380                                         dev->base_addr =
 381                                                 (int)(ndev->board->slot_addr +
 382                                                 DAYNA_8390_BASE);
 383                                         dev->mem_start =
 384                                                 (int)(ndev->board->slot_addr +
 385                                                 DAYNA_8390_MEM);
 386                                         dev->mem_end =
 387                                                 dev->mem_start +
 388                                                 mac8390_memsize(dev->mem_start);
 389                                         break;
 390                                 case MAC8390_INTERLAN:
 391                                         dev->base_addr =
 392                                                 (int)(ndev->board->slot_addr +
 393                                                 INTERLAN_8390_BASE);
 394                                         dev->mem_start =
 395                                                 (int)(ndev->board->slot_addr +
 396                                                 INTERLAN_8390_MEM);
 397                                         dev->mem_end =
 398                                                 dev->mem_start +
 399                                                 mac8390_memsize(dev->mem_start);
 400                                         break;
 401                                 case MAC8390_CABLETRON:
 402                                         dev->base_addr =
 403                                                 (int)(ndev->board->slot_addr +
 404                                                 CABLETRON_8390_BASE);
 405                                         dev->mem_start =
 406                                                 (int)(ndev->board->slot_addr +
 407                                                 CABLETRON_8390_MEM);
 408                                         /* The base address is unreadable if 0x00
 409                                          * has been written to the command register
 410                                          * Reset the chip by writing E8390_NODMA +
 411                                          *   E8390_PAGE0 + E8390_STOP just to be
 412                                          *   sure
 413                                          */
 414                                         i = (void *)dev->base_addr;
 415                                         *i = 0x21;
 416                                         dev->mem_end =
 417                                                 dev->mem_start +
 418                                                 mac8390_memsize(dev->mem_start);
 419                                         break;
 420
 421                                 default:
 422                                         printk(KERN_ERR "Card type %s is"
 423                                                " unsupported, sorry\n",
 424                                                ndev->board->name);
 425                                         continue;
 426                         }
 427                 }
 428
 429                 /* Do the nasty 8390 stuff */
 430                 if (!mac8390_initdev(dev, ndev, cardtype))
 431                         break;
 432         }
 433
 434         if (!ndev)
 435                 goto out;
 436         err = register_netdev(dev);
 437         if (err)
 438                 goto out;
 439         return dev;
 440
 441 out:
 442         free_netdev(dev);
 443         return ERR_PTR(err);
 444 }
 445
 446 #ifdef MODULE
 447 MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
 448 MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
 449 MODULE_LICENSE("GPL");
 450
 451 /* overkill, of course */
 452 static struct net_device *dev_mac8390[15];
 453 int init_module(void)
 454 {
 455         int i;
 456         for (i = 0; i < 15; i++) {
 457                 struct net_device *dev = mac8390_probe(-1);
 458                 if (IS_ERR(dev))
 459                         break;
 460                 dev_mac890[i] = dev;
 461         }
 462         if (!i) {
 463                 printk(KERN_NOTICE "mac8390.c: No useable cards found, driver NOT installed.\n");
 464                 return -ENODEV;
 465         }
 466         return 0;
 467 }
 468
 469 void cleanup_module(void)
 470 {
 471         int i;
 472         for (i = 0; i < 15; i++) {
 473                 struct net_device *dev = dev_mac890[i];
 474                 if (dev) {
 475                         unregister_netdev(dev);
 476                         free_netdev(dev);
 477                 }
 478         }
 479 }
 480
 481 #endif /* MODULE */
 482
 483 static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
 484                             enum mac8390_type type)
 485 {
 486         static u32 fwrd4_offsets[16]={
 487                 0,      4,      8,      12,
 488                 16,     20,     24,     28,
 489                 32,     36,     40,     44,
 490                 48,     52,     56,     60
 491         };
 492         static u32 back4_offsets[16]={
 493                 60,     56,     52,     48,
 494                 44,     40,     36,     32,
 495                 28,     24,     20,     16,
 496                 12,     8,      4,      0
 497         };
 498         static u32 fwrd2_offsets[16]={
 499                 0,      2,      4,      6,
 500                 8,     10,     12,     14,
 501                 16,    18,     20,     22,
 502                 24,    26,     28,     30
 503         };
 504
 505         int access_bitmode = 0;
 506
 507         /* Now fill in our stuff */
 508         dev->open = &mac8390_open;
 509         dev->stop = &mac8390_close;
 510 #ifdef CONFIG_NET_POLL_CONTROLLER
 511         dev->poll_controller = __ei_poll;
 512 #endif
 513
 514         /* GAR, ei_status is actually a macro even though it looks global */
 515         ei_status.name = cardname[type];
 516         ei_status.word16 = word16[type];
 517
 518         /* Cabletron's TX/RX buffers are backwards */
 519         if (type == MAC8390_CABLETRON) {
 520                ei_status.tx_start_page = CABLETRON_TX_START_PG;
 521                ei_status.rx_start_page = CABLETRON_RX_START_PG;
 522                ei_status.stop_page = CABLETRON_RX_STOP_PG;
 523                ei_status.rmem_start = dev->mem_start;
 524                ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
 525         } else {
 526                ei_status.tx_start_page = WD_START_PG;
 527                ei_status.rx_start_page = WD_START_PG + TX_PAGES;
 528                ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
 529                ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
 530                ei_status.rmem_end = dev->mem_end;
 531         }
 532
 533         /* Fill in model-specific information and functions */
 534         switch(type) {
 535         case MAC8390_FARALLON:
 536         case MAC8390_APPLE:
 537                 switch(mac8390_testio(dev->mem_start)) {
 538                         case ACCESS_UNKNOWN:
 539                                 printk("Don't know how to access card memory!\n");
 540                                 return -ENODEV;
 541                                 break;
 542
 543                         case ACCESS_16:
 544                                 /* 16 bit card, register map is reversed */
 545                                 ei_status.reset_8390 = &mac8390_no_reset;
 546                                 ei_status.block_input = &slow_sane_block_input;
 547                                 ei_status.block_output = &slow_sane_block_output;
 548                                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
 549                                 ei_status.reg_offset = back4_offsets;
 550                                 break;
 551
 552                         case ACCESS_32:
 553                                 /* 32 bit card, register map is reversed */
 554                                 ei_status.reset_8390 = &mac8390_no_reset;
 555                                 ei_status.block_input = &sane_block_input;
 556                                 ei_status.block_output = &sane_block_output;
 557                                 ei_status.get_8390_hdr = &sane_get_8390_hdr;
 558                                 ei_status.reg_offset = back4_offsets;
 559                                 access_bitmode = 1;
 560                                 break;
 561                 }
 562                 break;
 563
 564         case MAC8390_ASANTE:
 565                 /* Some Asante cards pass the 32 bit test
 566                  * but overwrite system memory when run at 32 bit.
 567                  * so we run them all at 16 bit.
 568                  */
 569                 ei_status.reset_8390 = &mac8390_no_reset;
 570                 ei_status.block_input = &slow_sane_block_input;
 571                 ei_status.block_output = &slow_sane_block_output;
 572                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
 573                 ei_status.reg_offset = back4_offsets;
 574                 break;
 575
 576         case MAC8390_CABLETRON:
 577                 /* 16 bit card, register map is short forward */
 578                 ei_status.reset_8390 = &mac8390_no_reset;
 579                 ei_status.block_input = &slow_sane_block_input;
 580                 ei_status.block_output = &slow_sane_block_output;
 581                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
 582                 ei_status.reg_offset = fwrd2_offsets;
 583                 break;
 584
 585         case MAC8390_DAYNA:
 586         case MAC8390_KINETICS:
 587                 /* 16 bit memory, register map is forward */
 588                 /* dayna and similar */
 589                 ei_status.reset_8390 = &mac8390_no_reset;
 590                 ei_status.block_input = &dayna_block_input;
 591                 ei_status.block_output = &dayna_block_output;
 592                 ei_status.get_8390_hdr = &dayna_get_8390_hdr;
 593                 ei_status.reg_offset = fwrd4_offsets;
 594                 break;
 595
 596         case MAC8390_INTERLAN:
 597                 /* 16 bit memory, register map is forward */
 598                 ei_status.reset_8390 = &interlan_reset;
 599                 ei_status.block_input = &slow_sane_block_input;
 600                 ei_status.block_output = &slow_sane_block_output;
 601                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
 602                 ei_status.reg_offset = fwrd4_offsets;
 603                 break;
 604
 605         default:
 606                 printk(KERN_ERR "Card type %s is unsupported, sorry\n", ndev->board->name);
 607                 return -ENODEV;
 608         }
 609
 610         __NS8390_init(dev, 0);
 611
 612         /* Good, done, now spit out some messages */
 613         printk(KERN_INFO "%s: %s in slot %X (type %s)\n",
 614                    dev->name, ndev->board->name, ndev->board->slot, cardname[type]);
 615         printk(KERN_INFO "MAC ");
 616         {
 617                 int i;
 618                 for (i = 0; i < 6; i++) {
 619                         printk("%2.2x", dev->dev_addr[i]);
 620                         if (i < 5)
 621                                 printk(":");
 622                 }
 623         }
 624         printk(" IRQ %d, %d KB shared memory at %#lx,  %d-bit access.\n",
 625                    dev->irq, (int)((dev->mem_end - dev->mem_start)/0x1000) * 4,
 626                    dev->mem_start, access_bitmode?32:16);
 627         return 0;
 628 }
 629
 630 static int mac8390_open(struct net_device *dev)
 631 {
 632         __ei_open(dev);
 633         if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) {
 634                 printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
 635                 return -EAGAIN;
 636         }
 637         return 0;
 638 }
 639
 640 static int mac8390_close(struct net_device *dev)
 641 {
 642         free_irq(dev->irq, dev);
 643         __ei_close(dev);
 644         return 0;
 645 }
 646
 647 static void mac8390_no_reset(struct net_device *dev)
 648 {
 649         ei_status.txing = 0;
 650         if (ei_debug > 1)
 651                 printk("reset not supported\n");
 652         return;
 653 }
 654
 655 static void interlan_reset(struct net_device *dev)
 656 {
 657         unsigned char *target=nubus_slot_addr(IRQ2SLOT(dev->irq));
 658         if (ei_debug > 1)
 659                 printk("Need to reset the NS8390 t=%lu...", jiffies);
 660         ei_status.txing = 0;
 661         target[0xC0000] = 0;
 662         if (ei_debug > 1)
 663                 printk("reset complete\n");
 664         return;
 665 }
 666
 667 /* dayna_memcpy_fromio/dayna_memcpy_toio */
 668 /* directly from daynaport.c by Alan Cox */
 669 static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count)
 670 {
 671         volatile unsigned char *ptr;
 672         unsigned char *target=to;
 673         from<<=1;       /* word, skip overhead */
 674         ptr=(unsigned char *)(dev->mem_start+from);
 675         /* Leading byte? */
 676         if (from&2) {
 677                 *target++ = ptr[-1];
 678                 ptr += 2;
 679                 count--;
 680         }
 681         while(count>=2)
 682         {
 683                 *(unsigned short *)target = *(unsigned short volatile *)ptr;
 684                 ptr += 4;                       /* skip cruft */
 685                 target += 2;
 686                 count-=2;
 687         }
 688         /* Trailing byte? */
 689         if(count)
 690                 *target = *ptr;
 691 }
 692
 693 static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
 694 {
 695         volatile unsigned short *ptr;
 696         const unsigned char *src=from;
 697         to<<=1; /* word, skip overhead */
 698         ptr=(unsigned short *)(dev->mem_start+to);
 699         /* Leading byte? */
 700         if (to&2) { /* avoid a byte write (stomps on other data) */
 701                 ptr[-1] = (ptr[-1]&0xFF00)|*src++;
 702                 ptr++;
 703                 count--;
 704         }
 705         while(count>=2)
 706         {
 707                 *ptr++=*(unsigned short *)src;          /* Copy and */
 708                 ptr++;                  /* skip cruft */
 709                 src += 2;
 710                 count-=2;
 711         }
 712         /* Trailing byte? */
 713         if(count)
 714         {
 715                 /* card doesn't like byte writes */
 716                 *ptr=(*ptr&0x00FF)|(*src << 8);
 717         }
 718 }
 719
 720 /* sane block input/output */
 721 static void sane_get_8390_hdr(struct net_device *dev,
 722                               struct e8390_pkt_hdr *hdr, int ring_page)
 723 {
 724         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
 725         memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4);
 726         /* Fix endianness */
 727         hdr->count = swab16(hdr->count);
 728 }
 729
 730 static void sane_block_input(struct net_device *dev, int count,
 731                              struct sk_buff *skb, int ring_offset)
 732 {
 733         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
 734         unsigned long xfer_start = xfer_base + dev->mem_start;
 735
 736         if (xfer_start + count > ei_status.rmem_end) {
 737                 /* We must wrap the input move. */
 738                 int semi_count = ei_status.rmem_end - xfer_start;
 739                 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, semi_count);
 740                 count -= semi_count;
 741                 memcpy_toio(skb->data + semi_count, (char *)ei_status.rmem_start, count);
 742         } else {
 743                 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count);
 744         }
 745 }
 746
 747 static void sane_block_output(struct net_device *dev, int count,
 748                               const unsigned char *buf, int start_page)
 749 {
 750         long shmem = (start_page - WD_START_PG)<<8;
 751
 752         memcpy_toio((char *)dev->mem_start + shmem, buf, count);
 753 }
 754
 755 /* dayna block input/output */
 756 static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
 757 {
 758         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
 759
 760         dayna_memcpy_fromcard(dev, (void *)hdr, hdr_start, 4);
 761         /* Fix endianness */
 762         hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
 763 }
 764
 765 static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
 766 {
 767         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
 768         unsigned long xfer_start = xfer_base+dev->mem_start;
 769
 770         /* Note the offset math is done in card memory space which is word
 771            per long onto our space. */
 772
 773         if (xfer_start + count > ei_status.rmem_end)
 774         {
 775                 /* We must wrap the input move. */
 776                 int semi_count = ei_status.rmem_end - xfer_start;
 777                 dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
 778                 count -= semi_count;
 779                 dayna_memcpy_fromcard(dev, skb->data + semi_count,
 780                                       ei_status.rmem_start - dev->mem_start,
 781                                       count);
 782         }
 783         else
 784         {
 785                 dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
 786         }
 787 }
 788
 789 static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf,
 790                                 int start_page)
 791 {
 792         long shmem = (start_page - WD_START_PG)<<8;
 793
 794         dayna_memcpy_tocard(dev, shmem, buf, count);
 795 }
 796
 797 /* Cabletron block I/O */
 798 static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
 799         int ring_page)
 800 {
 801         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
 802         word_memcpy_fromcard((void *)hdr, (char *)dev->mem_start+hdr_start, 4);
 803         /* Register endianism - fix here rather than 8390.c */
 804         hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8);
 805 }
 806
 807 static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb,
 808         int ring_offset)
 809 {
 810         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
 811         unsigned long xfer_start = xfer_base+dev->mem_start;
 812
 813         if (xfer_start + count > ei_status.rmem_end)
 814         {
 815                 /* We must wrap the input move. */
 816                 int semi_count = ei_status.rmem_end - xfer_start;
 817                 word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
 818                         xfer_base, semi_count);
 819                 count -= semi_count;
 820                 word_memcpy_fromcard(skb->data + semi_count,
 821                                      (char *)ei_status.rmem_start, count);
 822         }
 823         else
 824         {
 825                 word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
 826                         xfer_base, count);
 827         }
 828 }
 829
 830 static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf,
 831         int start_page)
 832 {
 833         long shmem = (start_page - WD_START_PG)<<8;
 834
 835         word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count);
 836 }
 837
 838 static void word_memcpy_tocard(void *tp, const void *fp, int count)
 839 {
 840         volatile unsigned short *to = tp;
 841         const unsigned short *from = fp;
 842
 843         count++;
 844         count/=2;
 845
 846         while(count--)
 847                 *to++=*from++;
 848 }
 849
 850 static void word_memcpy_fromcard(void *tp, const void *fp, int count)
 851 {
 852         unsigned short *to = tp;
 853         const volatile unsigned short *from = fp;
 854
 855         count++;
 856         count/=2;
 857
 858         while(count--)
 859                 *to++=*from++;
 860 }
 861
 862