SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  21
  22 #include <linux/module.h>
  23 #include <linux/kernel.h>
  24 #include <linux/types.h>
  25 #include <linux/fcntl.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/ptrace.h>
  28 #include <linux/ioport.h>
  29 #include <linux/nubus.h>
  30 #include <linux/in.h>
  31 #include <linux/slab.h>
  32 #include <linux/string.h>
  33 #include <linux/errno.h>
  34 #include <linux/init.h>
  35 #include <linux/netdevice.h>
  36 #include <linux/etherdevice.h>
  37 #include <linux/skbuff.h>
  38 #include <linux/bitops.h>
  39
  40 #include <asm/system.h>
  41 #include <asm/io.h>
  42 #include <asm/dma.h>
  43 #include <asm/hwtest.h>
  44 #include <asm/macints.h>
  45
  46 static char version[] =
  47         "v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
  48
  49 #define EI_SHIFT(x)     (ei_local->reg_offset[x])
  50 #define ei_inb(port)   in_8(port)
  51 #define ei_outb(val,port)  out_8(port,val)
  52 #define ei_inb_p(port)   in_8(port)
  53 #define ei_outb_p(val,port)  out_8(port,val)
  54
  55 #include "lib8390.c"
  56
  57 #define WD_START_PG                     0x00    /* First page of TX buffer */
  58 #define CABLETRON_RX_START_PG           0x00    /* First page of RX buffer */
  59 #define CABLETRON_RX_STOP_PG            0x30    /* Last page +1 of RX ring */
  60 #define CABLETRON_TX_START_PG           CABLETRON_RX_STOP_PG  /* First page of TX buffer */
  61
  62 /* Unfortunately it seems we have to hardcode these for the moment */
  63 /* 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? */
  64
  65 #define DAYNA_8390_BASE         0x80000
  66 #define DAYNA_8390_MEM          0x00000
  67
  68 #define CABLETRON_8390_BASE     0x90000
  69 #define CABLETRON_8390_MEM      0x00000
  70
  71 #define INTERLAN_8390_BASE      0xE0000
  72 #define INTERLAN_8390_MEM       0xD0000
  73
  74 enum mac8390_type {
  75         MAC8390_NONE = -1,
  76         MAC8390_APPLE,
  77         MAC8390_ASANTE,
  78         MAC8390_FARALLON,
  79         MAC8390_CABLETRON,
  80         MAC8390_DAYNA,
  81         MAC8390_INTERLAN,
  82         MAC8390_KINETICS,
  83 };
  84
  85 static const char * cardname[] = {
  86         "apple",
  87         "asante",
  88         "farallon",
  89         "cabletron",
  90         "dayna",
  91         "interlan",
  92         "kinetics",
  93 };
  94
  95 static int word16[] = {
  96         1, /* apple */
  97         1, /* asante */
  98         1, /* farallon */
  99         1, /* cabletron */
 100         0, /* dayna */
 101         1, /* interlan */
 102         0, /* kinetics */
 103 };
 104
 105 /* on which cards do we use NuBus resources? */
 106 static int useresources[] = {
 107         1, /* apple */
 108         1, /* asante */
 109         1, /* farallon */
 110         0, /* cabletron */
 111         0, /* dayna */
 112         0, /* interlan */
 113         0, /* kinetics */
 114 };
 115
 116 enum mac8390_access {
 117         ACCESS_UNKNOWN = 0,
 118         ACCESS_32,
 119         ACCESS_16,
 120 };
 121
 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 static 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 static 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(membase, &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(membase, &outdata, 4);
 248         /* Now read it back */
 249         word_memcpy_fromcard(&indata, membase, 4);
 250         if (outdata == indata)
 251                 return ACCESS_16;
 252         return ACCESS_UNKNOWN;
 253 }
 254
 255 static 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         struct nubus_dev * ndev = NULL;
 294         int err = -ENODEV;
 295
 296         struct nubus_dir dir;
 297         struct nubus_dirent ent;
 298         int offset;
 299         static unsigned int slots;
 300
 301         enum mac8390_type cardtype;
 302
 303         /* probably should check for Nubus instead */
 304
 305         if (!MACH_IS_MAC)
 306                 return ERR_PTR(-ENODEV);
 307
 308         dev = ____alloc_ei_netdev(0);
 309         if (!dev)
 310                 return ERR_PTR(-ENOMEM);
 311
 312         if (unit >= 0)
 313                 sprintf(dev->name, "eth%d", unit);
 314
 315         while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) {
 316                 /* Have we seen it already? */
 317                 if (slots & (1<<ndev->board->slot))
 318                         continue;
 319                 slots |= 1<<ndev->board->slot;
 320
 321                 if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE)
 322                         continue;
 323
 324                 printk_once(KERN_INFO pr_fmt(version));
 325
 326                 dev->irq = SLOT2IRQ(ndev->board->slot);
 327                 /* This is getting to be a habit */
 328                 dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20);
 329
 330                 /* Get some Nubus info - we will trust the card's idea
 331                    of where its memory and registers are. */
 332
 333                 if (nubus_get_func_dir(ndev, &dir) == -1) {
 334                         pr_err("%s: Unable to get Nubus functional directory for slot %X!\n",
 335                                dev->name, ndev->board->slot);
 336                         continue;
 337                 }
 338
 339                 /* Get the MAC address */
 340                 if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) {
 341                         pr_info("%s: Couldn't get MAC address!\n", dev->name);
 342                         continue;
 343                 } else {
 344                         nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
 345                 }
 346
 347                 if (useresources[cardtype] == 1) {
 348                         nubus_rewinddir(&dir);
 349                         if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) {
 350                                 pr_err("%s: Memory offset resource for slot %X not found!\n",
 351                                        dev->name, ndev->board->slot);
 352                                 continue;
 353                         }
 354                         nubus_get_rsrc_mem(&offset, &ent, 4);
 355                         dev->mem_start = dev->base_addr + offset;
 356                         /* yes, this is how the Apple driver does it */
 357                         dev->base_addr = dev->mem_start + 0x10000;
 358                         nubus_rewinddir(&dir);
 359                         if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) {
 360                                 pr_info("%s: Memory length resource for slot %X not found, probing\n",
 361                                         dev->name, ndev->board->slot);
 362                                 offset = mac8390_memsize(dev->mem_start);
 363                                 } else {
 364                                         nubus_get_rsrc_mem(&offset, &ent, 4);
 365                                 }
 366                         dev->mem_end = dev->mem_start + offset;
 367                 } else {
 368                         switch (cardtype) {
 369                         case MAC8390_KINETICS:
 370                         case MAC8390_DAYNA: /* it's the same */
 371                                 dev->base_addr =
 372                                         (int)(ndev->board->slot_addr +
 373                                               DAYNA_8390_BASE);
 374                                 dev->mem_start =
 375                                         (int)(ndev->board->slot_addr +
 376                                               DAYNA_8390_MEM);
 377                                 dev->mem_end =
 378                                         dev->mem_start +
 379                                         mac8390_memsize(dev->mem_start);
 380                                 break;
 381                         case MAC8390_INTERLAN:
 382                                 dev->base_addr =
 383                                         (int)(ndev->board->slot_addr +
 384                                               INTERLAN_8390_BASE);
 385                                 dev->mem_start =
 386                                         (int)(ndev->board->slot_addr +
 387                                               INTERLAN_8390_MEM);
 388                                 dev->mem_end =
 389                                         dev->mem_start +
 390                                         mac8390_memsize(dev->mem_start);
 391                                 break;
 392                         case MAC8390_CABLETRON:
 393                                 dev->base_addr =
 394                                         (int)(ndev->board->slot_addr +
 395                                               CABLETRON_8390_BASE);
 396                                 dev->mem_start =
 397                                         (int)(ndev->board->slot_addr +
 398                                               CABLETRON_8390_MEM);
 399                                 /* The base address is unreadable if 0x00
 400                                  * has been written to the command register
 401                                  * Reset the chip by writing E8390_NODMA +
 402                                  *   E8390_PAGE0 + E8390_STOP just to be
 403                                  *   sure
 404                                  */
 405                                 i = (void *)dev->base_addr;
 406                                 *i = 0x21;
 407                                 dev->mem_end =
 408                                         dev->mem_start +
 409                                         mac8390_memsize(dev->mem_start);
 410                                 break;
 411
 412                         default:
 413                                 pr_err("Card type %s is unsupported, sorry\n",
 414                                        ndev->board->name);
 415                                 continue;
 416                         }
 417                 }
 418
 419                 /* Do the nasty 8390 stuff */
 420                 if (!mac8390_initdev(dev, ndev, cardtype))
 421                         break;
 422         }
 423
 424         if (!ndev)
 425                 goto out;
 426         err = register_netdev(dev);
 427         if (err)
 428                 goto out;
 429         return dev;
 430
 431 out:
 432         free_netdev(dev);
 433         return ERR_PTR(err);
 434 }
 435
 436 #ifdef MODULE
 437 MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
 438 MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
 439 MODULE_LICENSE("GPL");
 440
 441 /* overkill, of course */
 442 static struct net_device *dev_mac8390[15];
 443 int init_module(void)
 444 {
 445         int i;
 446         for (i = 0; i < 15; i++) {
 447                 struct net_device *dev = mac8390_probe(-1);
 448                 if (IS_ERR(dev))
 449                         break;
 450                 dev_mac890[i] = dev;
 451         }
 452         if (!i) {
 453                 pr_notice("No useable cards found, driver NOT installed.\n");
 454                 return -ENODEV;
 455         }
 456         return 0;
 457 }
 458
 459 void cleanup_module(void)
 460 {
 461         int i;
 462         for (i = 0; i < 15; i++) {
 463                 struct net_device *dev = dev_mac890[i];
 464                 if (dev) {
 465                         unregister_netdev(dev);
 466                         free_netdev(dev);
 467                 }
 468         }
 469 }
 470
 471 #endif /* MODULE */
 472
 473 static const struct net_device_ops mac8390_netdev_ops = {
 474         .ndo_open               = mac8390_open,
 475         .ndo_stop               = mac8390_close,
 476         .ndo_start_xmit         = __ei_start_xmit,
 477         .ndo_tx_timeout         = __ei_tx_timeout,
 478         .ndo_get_stats          = __ei_get_stats,
 479         .ndo_set_multicast_list = __ei_set_multicast_list,
 480         .ndo_validate_addr      = eth_validate_addr,
 481         .ndo_set_mac_address    = eth_mac_addr,
 482         .ndo_change_mtu         = eth_change_mtu,
 483 #ifdef CONFIG_NET_POLL_CONTROLLER
 484         .ndo_poll_controller    = __ei_poll,
 485 #endif
 486 };
 487
 488 static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
 489                             enum mac8390_type type)
 490 {
 491         static u32 fwrd4_offsets[16]={
 492                 0,      4,      8,      12,
 493                 16,     20,     24,     28,
 494                 32,     36,     40,     44,
 495                 48,     52,     56,     60
 496         };
 497         static u32 back4_offsets[16]={
 498                 60,     56,     52,     48,
 499                 44,     40,     36,     32,
 500                 28,     24,     20,     16,
 501                 12,     8,      4,      0
 502         };
 503         static u32 fwrd2_offsets[16]={
 504                 0,      2,      4,      6,
 505                 8,     10,     12,     14,
 506                 16,    18,     20,     22,
 507                 24,    26,     28,     30
 508         };
 509
 510         int access_bitmode = 0;
 511
 512         /* Now fill in our stuff */
 513         dev->netdev_ops = &mac8390_netdev_ops;
 514
 515         /* GAR, ei_status is actually a macro even though it looks global */
 516         ei_status.name = cardname[type];
 517         ei_status.word16 = word16[type];
 518
 519         /* Cabletron's TX/RX buffers are backwards */
 520         if (type == MAC8390_CABLETRON) {
 521                ei_status.tx_start_page = CABLETRON_TX_START_PG;
 522                ei_status.rx_start_page = CABLETRON_RX_START_PG;
 523                ei_status.stop_page = CABLETRON_RX_STOP_PG;
 524                ei_status.rmem_start = dev->mem_start;
 525                ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
 526         } else {
 527                ei_status.tx_start_page = WD_START_PG;
 528                ei_status.rx_start_page = WD_START_PG + TX_PAGES;
 529                ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
 530                ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
 531                ei_status.rmem_end = dev->mem_end;
 532         }
 533
 534         /* Fill in model-specific information and functions */
 535         switch (type) {
 536         case MAC8390_FARALLON:
 537         case MAC8390_APPLE:
 538                 switch (mac8390_testio(dev->mem_start)) {
 539                 case ACCESS_UNKNOWN:
 540                         pr_info("Don't know how to access card memory!\n");
 541                         return -ENODEV;
 542                         break;
 543
 544                 case ACCESS_16:
 545                         /* 16 bit card, register map is reversed */
 546                         ei_status.reset_8390 = &mac8390_no_reset;
 547                         ei_status.block_input = &slow_sane_block_input;
 548                         ei_status.block_output = &slow_sane_block_output;
 549                         ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
 550                         ei_status.reg_offset = back4_offsets;
 551                         break;
 552
 553                 case ACCESS_32:
 554                         /* 32 bit card, register map is reversed */
 555                         ei_status.reset_8390 = &mac8390_no_reset;
 556                         ei_status.block_input = &sane_block_input;
 557                         ei_status.block_output = &sane_block_output;
 558                         ei_status.get_8390_hdr = &sane_get_8390_hdr;
 559                         ei_status.reg_offset = back4_offsets;
 560                         access_bitmode = 1;
 561                         break;
 562                 }
 563                 break;
 564
 565         case MAC8390_ASANTE:
 566                 /* Some Asante cards pass the 32 bit test
 567                  * but overwrite system memory when run at 32 bit.
 568                  * so we run them all at 16 bit.
 569                  */
 570                 ei_status.reset_8390 = &mac8390_no_reset;
 571                 ei_status.block_input = &slow_sane_block_input;
 572                 ei_status.block_output = &slow_sane_block_output;
 573                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
 574                 ei_status.reg_offset = back4_offsets;
 575                 break;
 576
 577         case MAC8390_CABLETRON:
 578                 /* 16 bit card, register map is short forward */
 579                 ei_status.reset_8390 = &mac8390_no_reset;
 580                 ei_status.block_input = &slow_sane_block_input;
 581                 ei_status.block_output = &slow_sane_block_output;
 582                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
 583                 ei_status.reg_offset = fwrd2_offsets;
 584                 break;
 585
 586         case MAC8390_DAYNA:
 587         case MAC8390_KINETICS:
 588                 /* 16 bit memory, register map is forward */
 589                 /* dayna and similar */
 590                 ei_status.reset_8390 = &mac8390_no_reset;
 591                 ei_status.block_input = &dayna_block_input;
 592                 ei_status.block_output = &dayna_block_output;
 593                 ei_status.get_8390_hdr = &dayna_get_8390_hdr;
 594                 ei_status.reg_offset = fwrd4_offsets;
 595                 break;
 596
 597         case MAC8390_INTERLAN:
 598                 /* 16 bit memory, register map is forward */
 599                 ei_status.reset_8390 = &interlan_reset;
 600                 ei_status.block_input = &slow_sane_block_input;
 601                 ei_status.block_output = &slow_sane_block_output;
 602                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
 603                 ei_status.reg_offset = fwrd4_offsets;
 604                 break;
 605
 606         default:
 607                 pr_err("Card type %s is unsupported, sorry\n",
 608                        ndev->board->name);
 609                 return -ENODEV;
 610         }
 611
 612         __NS8390_init(dev, 0);
 613
 614         /* Good, done, now spit out some messages */
 615         pr_info("%s: %s in slot %X (type %s)\n",
 616                 dev->name, ndev->board->name, ndev->board->slot,
 617                 cardname[type]);
 618         pr_info("MAC %pM IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n",
 619                 dev->dev_addr, dev->irq,
 620                 (unsigned int)(dev->mem_end - dev->mem_start) >> 10,
 621                 dev->mem_start, access_bitmode ? 32 : 16);
 622         return 0;
 623 }
 624
 625 static int mac8390_open(struct net_device *dev)
 626 {
 627         __ei_open(dev);
 628         if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) {
 629                 pr_info("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
 630                 return -EAGAIN;
 631         }
 632         return 0;
 633 }
 634
 635 static int mac8390_close(struct net_device *dev)
 636 {
 637         free_irq(dev->irq, dev);
 638         __ei_close(dev);
 639         return 0;
 640 }
 641
 642 static void mac8390_no_reset(struct net_device *dev)
 643 {
 644         ei_status.txing = 0;
 645         if (ei_debug > 1)
 646                 pr_info("reset not supported\n");
 647         return;
 648 }
 649
 650 static void interlan_reset(struct net_device *dev)
 651 {
 652         unsigned char *target=nubus_slot_addr(IRQ2SLOT(dev->irq));
 653         if (ei_debug > 1)
 654                 pr_info("Need to reset the NS8390 t=%lu...", jiffies);
 655         ei_status.txing = 0;
 656         target[0xC0000] = 0;
 657         if (ei_debug > 1)
 658                 pr_cont("reset complete\n");
 659         return;
 660 }
 661
 662 /* dayna_memcpy_fromio/dayna_memcpy_toio */
 663 /* directly from daynaport.c by Alan Cox */
 664 static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count)
 665 {
 666         volatile unsigned char *ptr;
 667         unsigned char *target=to;
 668         from<<=1;       /* word, skip overhead */
 669         ptr=(unsigned char *)(dev->mem_start+from);
 670         /* Leading byte? */
 671         if (from&2) {
 672                 *target++ = ptr[-1];
 673                 ptr += 2;
 674                 count--;
 675         }
 676         while(count>=2)
 677         {
 678                 *(unsigned short *)target = *(unsigned short volatile *)ptr;
 679                 ptr += 4;                       /* skip cruft */
 680                 target += 2;
 681                 count-=2;
 682         }
 683         /* Trailing byte? */
 684         if(count)
 685                 *target = *ptr;
 686 }
 687
 688 static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
 689 {
 690         volatile unsigned short *ptr;
 691         const unsigned char *src=from;
 692         to<<=1; /* word, skip overhead */
 693         ptr=(unsigned short *)(dev->mem_start+to);
 694         /* Leading byte? */
 695         if (to&2) { /* avoid a byte write (stomps on other data) */
 696                 ptr[-1] = (ptr[-1]&0xFF00)|*src++;
 697                 ptr++;
 698                 count--;
 699         }
 700         while(count>=2)
 701         {
 702                 *ptr++=*(unsigned short *)src;          /* Copy and */
 703                 ptr++;                  /* skip cruft */
 704                 src += 2;
 705                 count-=2;
 706         }
 707         /* Trailing byte? */
 708         if(count)
 709         {
 710                 /* card doesn't like byte writes */
 711                 *ptr=(*ptr&0x00FF)|(*src << 8);
 712         }
 713 }
 714
 715 /* sane block input/output */
 716 static void sane_get_8390_hdr(struct net_device *dev,
 717                               struct e8390_pkt_hdr *hdr, int ring_page)
 718 {
 719         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
 720         memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4);
 721         /* Fix endianness */
 722         hdr->count = swab16(hdr->count);
 723 }
 724
 725 static void sane_block_input(struct net_device *dev, int count,
 726                              struct sk_buff *skb, int ring_offset)
 727 {
 728         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
 729         unsigned long xfer_start = xfer_base + dev->mem_start;
 730
 731         if (xfer_start + count > ei_status.rmem_end) {
 732                 /* We must wrap the input move. */
 733                 int semi_count = ei_status.rmem_end - xfer_start;
 734                 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, semi_count);
 735                 count -= semi_count;
 736                 memcpy_toio(skb->data + semi_count, (char *)ei_status.rmem_start, count);
 737         } else {
 738                 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count);
 739         }
 740 }
 741
 742 static void sane_block_output(struct net_device *dev, int count,
 743                               const unsigned char *buf, int start_page)
 744 {
 745         long shmem = (start_page - WD_START_PG)<<8;
 746
 747         memcpy_toio((char *)dev->mem_start + shmem, buf, count);
 748 }
 749
 750 /* dayna block input/output */
 751 static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
 752 {
 753         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
 754
 755         dayna_memcpy_fromcard(dev, hdr, hdr_start, 4);
 756         /* Fix endianness */
 757         hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
 758 }
 759
 760 static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
 761 {
 762         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
 763         unsigned long xfer_start = xfer_base+dev->mem_start;
 764
 765         /* Note the offset math is done in card memory space which is word
 766            per long onto our space. */
 767
 768         if (xfer_start + count > ei_status.rmem_end)
 769         {
 770                 /* We must wrap the input move. */
 771                 int semi_count = ei_status.rmem_end - xfer_start;
 772                 dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
 773                 count -= semi_count;
 774                 dayna_memcpy_fromcard(dev, skb->data + semi_count,
 775                                       ei_status.rmem_start - dev->mem_start,
 776                                       count);
 777         }
 778         else
 779         {
 780                 dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
 781         }
 782 }
 783
 784 static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf,
 785                                 int start_page)
 786 {
 787         long shmem = (start_page - WD_START_PG)<<8;
 788
 789         dayna_memcpy_tocard(dev, shmem, buf, count);
 790 }
 791
 792 /* Cabletron block I/O */
 793 static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
 794         int ring_page)
 795 {
 796         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
 797         word_memcpy_fromcard(hdr, (char *)dev->mem_start + hdr_start, 4);
 798         /* Register endianism - fix here rather than 8390.c */
 799         hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8);
 800 }
 801
 802 static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb,
 803         int ring_offset)
 804 {
 805         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
 806         unsigned long xfer_start = xfer_base+dev->mem_start;
 807
 808         if (xfer_start + count > ei_status.rmem_end)
 809         {
 810                 /* We must wrap the input move. */
 811                 int semi_count = ei_status.rmem_end - xfer_start;
 812                 word_memcpy_fromcard(skb->data,
 813                                      (char *)dev->mem_start + xfer_base,
 814                                      semi_count);
 815                 count -= semi_count;
 816                 word_memcpy_fromcard(skb->data + semi_count,
 817                                      (char *)ei_status.rmem_start, count);
 818         }
 819         else
 820         {
 821                 word_memcpy_fromcard(skb->data,
 822                                      (char *)dev->mem_start + xfer_base, count);
 823         }
 824 }
 825
 826 static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf,
 827         int start_page)
 828 {
 829         long shmem = (start_page - WD_START_PG)<<8;
 830
 831         word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count);
 832 }
 833
 834 static void word_memcpy_tocard(void *tp, const void *fp, int count)
 835 {
 836         volatile unsigned short *to = tp;
 837         const unsigned short *from = fp;
 838
 839         count++;
 840         count/=2;
 841
 842         while(count--)
 843                 *to++=*from++;
 844 }
 845
 846 static void word_memcpy_fromcard(void *tp, const void *fp, int count)
 847 {
 848         unsigned short *to = tp;
 849         const volatile unsigned short *from = fp;
 850
 851         count++;
 852         count/=2;
 853
 854         while(count--)
 855                 *to++=*from++;
 856 }
 857
 858