git.oblomov.eu Git - linux-2.6/blob - drivers/net/wireless/orinoco_cs.c

   1 /* orinoco_cs.c (formerly known as dldwd_cs.c)
   2  *
   3  * A driver for "Hermes" chipset based PCMCIA wireless adaptors, such
   4  * as the Lucent WavelanIEEE/Orinoco cards and their OEM (Cabletron/
   5  * EnteraSys RoamAbout 802.11, ELSA Airlancer, Melco Buffalo and others).
   6  * It should also be usable on various Prism II based cards such as the
   7  * Linksys, D-Link and Farallon Skyline. It should also work on Symbol
   8  * cards such as the 3Com AirConnect and Ericsson WLAN.
   9  *
  10  * Copyright notice & release notes in file orinoco.c
  11  */
  12
  13 #define DRIVER_NAME "orinoco_cs"
  14 #define PFX DRIVER_NAME ": "
  15
  16 #include <linux/config.h>
  17 #ifdef  __IN_PCMCIA_PACKAGE__
  18 #include <pcmcia/k_compat.h>
  19 #endif /* __IN_PCMCIA_PACKAGE__ */
  20
  21 #include <linux/module.h>
  22 #include <linux/kernel.h>
  23 #include <linux/init.h>
  24 #include <linux/sched.h>
  25 #include <linux/ptrace.h>
  26 #include <linux/slab.h>
  27 #include <linux/string.h>
  28 #include <linux/ioport.h>
  29 #include <linux/netdevice.h>
  30 #include <linux/if_arp.h>
  31 #include <linux/etherdevice.h>
  32 #include <linux/wireless.h>
  33
  34 #include <pcmcia/version.h>
  35 #include <pcmcia/cs_types.h>
  36 #include <pcmcia/cs.h>
  37 #include <pcmcia/cistpl.h>
  38 #include <pcmcia/cisreg.h>
  39 #include <pcmcia/ds.h>
  40
  41 #include <asm/uaccess.h>
  42 #include <asm/io.h>
  43 #include <asm/system.h>
  44
  45 #include "orinoco.h"
  46
  47 /********************************************************************/
  48 /* Module stuff                                                     */
  49 /********************************************************************/
  50
  51 MODULE_AUTHOR("David Gibson <hermes@gibson.dropbear.id.au>");
  52 MODULE_DESCRIPTION("Driver for PCMCIA Lucent Orinoco, Prism II based and similar wireless cards");
  53 MODULE_LICENSE("Dual MPL/GPL");
  54
  55 /* Module parameters */
  56
  57 /* Some D-Link cards have buggy CIS. They do work at 5v properly, but
  58  * don't have any CIS entry for it. This workaround it... */
  59 static int ignore_cis_vcc; /* = 0 */
  60 module_param(ignore_cis_vcc, int, 0);
  61 MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket");
  62
  63 /********************************************************************/
  64 /* Magic constants                                                  */
  65 /********************************************************************/
  66
  67 /*
  68  * The dev_info variable is the "key" that is used to match up this
  69  * device driver with appropriate cards, through the card
  70  * configuration database.
  71  */
  72 static dev_info_t dev_info = DRIVER_NAME;
  73
  74 /********************************************************************/
  75 /* Data structures                                                  */
  76 /********************************************************************/
  77
  78 /* PCMCIA specific device information (goes in the card field of
  79  * struct orinoco_private */
  80 struct orinoco_pccard {
  81         dev_link_t link;
  82         dev_node_t node;
  83
  84         /* Used to handle hard reset */
  85         /* yuck, we need this hack to work around the insanity of the
  86          * PCMCIA layer */
  87         unsigned long hard_reset_in_progress;
  88 };
  89
  90 /*
  91  * A linked list of "instances" of the device.  Each actual PCMCIA
  92  * card corresponds to one device instance, and is described by one
  93  * dev_link_t structure (defined in ds.h).
  94  */
  95 static dev_link_t *dev_list; /* = NULL */
  96
  97 /********************************************************************/
  98 /* Function prototypes                                              */
  99 /********************************************************************/
 100
 101 /* device methods */
 102 static int orinoco_cs_hard_reset(struct orinoco_private *priv);
 103
 104 /* PCMCIA gumpf */
 105 static void orinoco_cs_config(dev_link_t * link);
 106 static void orinoco_cs_release(dev_link_t * link);
 107 static int orinoco_cs_event(event_t event, int priority,
 108                             event_callback_args_t * args);
 109
 110 static dev_link_t *orinoco_cs_attach(void);
 111 static void orinoco_cs_detach(dev_link_t *);
 112
 113 /********************************************************************/
 114 /* Device methods                                                   */
 115 /********************************************************************/
 116
 117 static int
 118 orinoco_cs_hard_reset(struct orinoco_private *priv)
 119 {
 120         struct orinoco_pccard *card = priv->card;
 121         dev_link_t *link = &card->link;
 122         int err;
 123
 124         /* We need atomic ops here, because we're not holding the lock */
 125         set_bit(0, &card->hard_reset_in_progress);
 126
 127         err = pcmcia_reset_card(link->handle, NULL);
 128         if (err)
 129                 return err;
 130
 131         msleep(100);
 132         clear_bit(0, &card->hard_reset_in_progress);
 133
 134         return 0;
 135 }
 136
 137 /********************************************************************/
 138 /* PCMCIA stuff                                                     */
 139 /********************************************************************/
 140
 141 /*
 142  * This creates an "instance" of the driver, allocating local data
 143  * structures for one device.  The device is registered with Card
 144  * Services.
 145  *
 146  * The dev_link structure is initialized, but we don't actually
 147  * configure the card at this point -- we wait until we receive a card
 148  * insertion event.  */
 149 static dev_link_t *
 150 orinoco_cs_attach(void)
 151 {
 152         struct net_device *dev;
 153         struct orinoco_private *priv;
 154         struct orinoco_pccard *card;
 155         dev_link_t *link;
 156         client_reg_t client_reg;
 157         int ret;
 158
 159         dev = alloc_orinocodev(sizeof(*card), orinoco_cs_hard_reset);
 160         if (! dev)
 161                 return NULL;
 162         priv = netdev_priv(dev);
 163         card = priv->card;
 164
 165         /* Link both structures together */
 166         link = &card->link;
 167         link->priv = dev;
 168
 169         /* Interrupt setup */
 170         link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
 171         link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 172         link->irq.Handler = orinoco_interrupt;
 173         link->irq.Instance = dev;
 174
 175         /* General socket configuration defaults can go here.  In this
 176          * client, we assume very little, and rely on the CIS for
 177          * almost everything.  In most clients, many details (i.e.,
 178          * number, sizes, and attributes of IO windows) are fixed by
 179          * the nature of the device, and can be hard-wired here. */
 180         link->conf.Attributes = 0;
 181         link->conf.IntType = INT_MEMORY_AND_IO;
 182
 183         /* Register with Card Services */
 184         /* FIXME: need a lock? */
 185         link->next = dev_list;
 186         dev_list = link;
 187
 188         client_reg.dev_info = &dev_info;
 189         client_reg.EventMask =
 190                 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
 191                 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
 192                 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
 193         client_reg.event_handler = &orinoco_cs_event;
 194         client_reg.Version = 0x0210; /* FIXME: what does this mean? */
 195         client_reg.event_callback_args.client_data = link;
 196
 197         ret = pcmcia_register_client(&link->handle, &client_reg);
 198         if (ret != CS_SUCCESS) {
 199                 cs_error(link->handle, RegisterClient, ret);
 200                 orinoco_cs_detach(link);
 201                 return NULL;
 202         }
 203
 204         return link;
 205 }                               /* orinoco_cs_attach */
 206
 207 /*
 208  * This deletes a driver "instance".  The device is de-registered with
 209  * Card Services.  If it has been released, all local data structures
 210  * are freed.  Otherwise, the structures will be freed when the device
 211  * is released.
 212  */
 213 static void orinoco_cs_detach(dev_link_t *link)
 214 {
 215         dev_link_t **linkp;
 216         struct net_device *dev = link->priv;
 217
 218         /* Locate device structure */
 219         for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
 220                 if (*linkp == link)
 221                         break;
 222
 223         BUG_ON(*linkp == NULL);
 224
 225         if (link->state & DEV_CONFIG)
 226                 orinoco_cs_release(link);
 227
 228         /* Break the link with Card Services */
 229         if (link->handle)
 230                 pcmcia_deregister_client(link->handle);
 231
 232         /* Unlink device structure, and free it */
 233         *linkp = link->next;
 234         DEBUG(0, PFX "detach: link=%p link->dev=%p\n", link, link->dev);
 235         if (link->dev) {
 236                 DEBUG(0, PFX "About to unregister net device %p\n",
 237                       dev);
 238                 unregister_netdev(dev);
 239         }
 240         free_orinocodev(dev);
 241 }                               /* orinoco_cs_detach */
 242
 243 /*
 244  * orinoco_cs_config() is scheduled to run after a CARD_INSERTION
 245  * event is received, to configure the PCMCIA socket, and to make the
 246  * device available to the system.
 247  */
 248
 249 #define CS_CHECK(fn, ret) do { \
 250                 last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; \
 251         } while (0)
 252
 253 static void
 254 orinoco_cs_config(dev_link_t *link)
 255 {
 256         struct net_device *dev = link->priv;
 257         client_handle_t handle = link->handle;
 258         struct orinoco_private *priv = netdev_priv(dev);
 259         struct orinoco_pccard *card = priv->card;
 260         hermes_t *hw = &priv->hw;
 261         int last_fn, last_ret;
 262         u_char buf[64];
 263         config_info_t conf;
 264         cisinfo_t info;
 265         tuple_t tuple;
 266         cisparse_t parse;
 267         void __iomem *mem;
 268
 269         CS_CHECK(ValidateCIS, pcmcia_validate_cis(handle, &info));
 270
 271         /*
 272          * This reads the card's CONFIG tuple to find its
 273          * configuration registers.
 274          */
 275         tuple.DesiredTuple = CISTPL_CONFIG;
 276         tuple.Attributes = 0;
 277         tuple.TupleData = buf;
 278         tuple.TupleDataMax = sizeof(buf);
 279         tuple.TupleOffset = 0;
 280         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 281         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
 282         CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
 283         link->conf.ConfigBase = parse.config.base;
 284         link->conf.Present = parse.config.rmask[0];
 285
 286         /* Configure card */
 287         link->state |= DEV_CONFIG;
 288
 289         /* Look up the current Vcc */
 290         CS_CHECK(GetConfigurationInfo,
 291                  pcmcia_get_configuration_info(handle, &conf));
 292         link->conf.Vcc = conf.Vcc;
 293
 294         /*
 295          * In this loop, we scan the CIS for configuration table
 296          * entries, each of which describes a valid card
 297          * configuration, including voltage, IO window, memory window,
 298          * and interrupt settings.
 299          *
 300          * We make no assumptions about the card to be configured: we
 301          * use just the information available in the CIS.  In an ideal
 302          * world, this would work for any PCMCIA card, but it requires
 303          * a complete and accurate CIS.  In practice, a driver usually
 304          * "knows" most of these things without consulting the CIS,
 305          * and most client drivers will only use the CIS to fill in
 306          * implementation-defined details.
 307          */
 308         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 309         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 310         while (1) {
 311                 cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
 312                 cistpl_cftable_entry_t dflt = { .index = 0 };
 313
 314                 if ( (pcmcia_get_tuple_data(handle, &tuple) != 0)
 315                     || (pcmcia_parse_tuple(handle, &tuple, &parse) != 0))
 316                         goto next_entry;
 317
 318                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 319                         dflt = *cfg;
 320                 if (cfg->index == 0)
 321                         goto next_entry;
 322                 link->conf.ConfigIndex = cfg->index;
 323
 324                 /* Does this card need audio output? */
 325                 if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
 326                         link->conf.Attributes |= CONF_ENABLE_SPKR;
 327                         link->conf.Status = CCSR_AUDIO_ENA;
 328                 }
 329
 330                 /* Use power settings for Vcc and Vpp if present */
 331                 /* Note that the CIS values need to be rescaled */
 332                 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 333                         if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) {
 334                                 DEBUG(2, "orinoco_cs_config: Vcc mismatch (conf.Vcc = %d, CIS = %d)\n",  conf.Vcc, cfg->vcc.param[CISTPL_POWER_VNOM] / 10000);
 335                                 if (!ignore_cis_vcc)
 336                                         goto next_entry;
 337                         }
 338                 } else if (dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
 339                         if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM] / 10000) {
 340                                 DEBUG(2, "orinoco_cs_config: Vcc mismatch (conf.Vcc = %d, CIS = %d)\n",  conf.Vcc, dflt.vcc.param[CISTPL_POWER_VNOM] / 10000);
 341                                 if(!ignore_cis_vcc)
 342                                         goto next_entry;
 343                         }
 344                 }
 345
 346                 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 347                         link->conf.Vpp1 = link->conf.Vpp2 =
 348                             cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 349                 else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
 350                         link->conf.Vpp1 = link->conf.Vpp2 =
 351                             dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
 352
 353                 /* Do we need to allocate an interrupt? */
 354                 link->conf.Attributes |= CONF_ENABLE_IRQ;
 355
 356                 /* IO window settings */
 357                 link->io.NumPorts1 = link->io.NumPorts2 = 0;
 358                 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
 359                         cistpl_io_t *io =
 360                             (cfg->io.nwin) ? &cfg->io : &dflt.io;
 361                         link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 362                         if (!(io->flags & CISTPL_IO_8BIT))
 363                                 link->io.Attributes1 =
 364                                     IO_DATA_PATH_WIDTH_16;
 365                         if (!(io->flags & CISTPL_IO_16BIT))
 366                                 link->io.Attributes1 =
 367                                     IO_DATA_PATH_WIDTH_8;
 368                         link->io.IOAddrLines =
 369                             io->flags & CISTPL_IO_LINES_MASK;
 370                         link->io.BasePort1 = io->win[0].base;
 371                         link->io.NumPorts1 = io->win[0].len;
 372                         if (io->nwin > 1) {
 373                                 link->io.Attributes2 =
 374                                     link->io.Attributes1;
 375                                 link->io.BasePort2 = io->win[1].base;
 376                                 link->io.NumPorts2 = io->win[1].len;
 377                         }
 378
 379                         /* This reserves IO space but doesn't actually enable it */
 380                         if (pcmcia_request_io(link->handle, &link->io) != 0)
 381                                 goto next_entry;
 382                 }
 383
 384
 385                 /* If we got this far, we're cool! */
 386
 387                 break;
 388
 389         next_entry:
 390                 if (link->io.NumPorts1)
 391                         pcmcia_release_io(link->handle, &link->io);
 392                 last_ret = pcmcia_get_next_tuple(handle, &tuple);
 393                 if (last_ret  == CS_NO_MORE_ITEMS) {
 394                         printk(KERN_ERR PFX "GetNextTuple(): No matching "
 395                                "CIS configuration.  Maybe you need the "
 396                                "ignore_cis_vcc=1 parameter.\n");
 397                         goto cs_failed;
 398                 }
 399         }
 400
 401         /*
 402          * Allocate an interrupt line.  Note that this does not assign
 403          * a handler to the interrupt, unless the 'Handler' member of
 404          * the irq structure is initialized.
 405          */
 406         CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
 407
 408         /* We initialize the hermes structure before completing PCMCIA
 409          * configuration just in case the interrupt handler gets
 410          * called. */
 411         mem = ioport_map(link->io.BasePort1, link->io.NumPorts1);
 412         if (!mem)
 413                 goto cs_failed;
 414
 415         hermes_struct_init(hw, mem, HERMES_16BIT_REGSPACING);
 416
 417         /*
 418          * This actually configures the PCMCIA socket -- setting up
 419          * the I/O windows and the interrupt mapping, and putting the
 420          * card and host interface into "Memory and IO" mode.
 421          */
 422         CS_CHECK(RequestConfiguration,
 423                  pcmcia_request_configuration(link->handle, &link->conf));
 424
 425         /* Ok, we have the configuration, prepare to register the netdev */
 426         dev->base_addr = link->io.BasePort1;
 427         dev->irq = link->irq.AssignedIRQ;
 428         SET_MODULE_OWNER(dev);
 429         card->node.major = card->node.minor = 0;
 430
 431         SET_NETDEV_DEV(dev, &handle_to_dev(handle));
 432         /* Tell the stack we exist */
 433         if (register_netdev(dev) != 0) {
 434                 printk(KERN_ERR PFX "register_netdev() failed\n");
 435                 goto failed;
 436         }
 437
 438         /* At this point, the dev_node_t structure(s) needs to be
 439          * initialized and arranged in a linked list at link->dev. */
 440         strcpy(card->node.dev_name, dev->name);
 441         link->dev = &card->node; /* link->dev being non-NULL is also
 442                                     used to indicate that the
 443                                     net_device has been registered */
 444         link->state &= ~DEV_CONFIG_PENDING;
 445
 446         /* Finally, report what we've done */
 447         printk(KERN_DEBUG "%s: index 0x%02x: Vcc %d.%d",
 448                dev->name, link->conf.ConfigIndex,
 449                link->conf.Vcc / 10, link->conf.Vcc % 10);
 450         if (link->conf.Vpp1)
 451                 printk(", Vpp %d.%d", link->conf.Vpp1 / 10,
 452                        link->conf.Vpp1 % 10);
 453         printk(", irq %d", link->irq.AssignedIRQ);
 454         if (link->io.NumPorts1)
 455                 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
 456                        link->io.BasePort1 + link->io.NumPorts1 - 1);
 457         if (link->io.NumPorts2)
 458                 printk(" & 0x%04x-0x%04x", link->io.BasePort2,
 459                        link->io.BasePort2 + link->io.NumPorts2 - 1);
 460         printk("\n");
 461
 462         return;
 463
 464  cs_failed:
 465         cs_error(link->handle, last_fn, last_ret);
 466
 467  failed:
 468         orinoco_cs_release(link);
 469 }                               /* orinoco_cs_config */
 470
 471 /*
 472  * After a card is removed, orinoco_cs_release() will unregister the
 473  * device, and release the PCMCIA configuration.  If the device is
 474  * still open, this will be postponed until it is closed.
 475  */
 476 static void
 477 orinoco_cs_release(dev_link_t *link)
 478 {
 479         struct net_device *dev = link->priv;
 480         struct orinoco_private *priv = netdev_priv(dev);
 481         unsigned long flags;
 482
 483         /* We're committed to taking the device away now, so mark the
 484          * hardware as unavailable */
 485         spin_lock_irqsave(&priv->lock, flags);
 486         priv->hw_unavailable++;
 487         spin_unlock_irqrestore(&priv->lock, flags);
 488
 489         /* Don't bother checking to see if these succeed or not */
 490         pcmcia_release_configuration(link->handle);
 491         if (link->io.NumPorts1)
 492                 pcmcia_release_io(link->handle, &link->io);
 493         if (link->irq.AssignedIRQ)
 494                 pcmcia_release_irq(link->handle, &link->irq);
 495         link->state &= ~DEV_CONFIG;
 496         if (priv->hw.iobase)
 497                 ioport_unmap(priv->hw.iobase);
 498 }                               /* orinoco_cs_release */
 499
 500 /*
 501  * The card status event handler.  Mostly, this schedules other stuff
 502  * to run after an event is received.
 503  */
 504 static int
 505 orinoco_cs_event(event_t event, int priority,
 506                        event_callback_args_t * args)
 507 {
 508         dev_link_t *link = args->client_data;
 509         struct net_device *dev = link->priv;
 510         struct orinoco_private *priv = netdev_priv(dev);
 511         struct orinoco_pccard *card = priv->card;
 512         int err = 0;
 513         unsigned long flags;
 514
 515         switch (event) {
 516         case CS_EVENT_CARD_REMOVAL:
 517                 link->state &= ~DEV_PRESENT;
 518                 if (link->state & DEV_CONFIG) {
 519                         unsigned long flags;
 520
 521                         spin_lock_irqsave(&priv->lock, flags);
 522                         netif_device_detach(dev);
 523                         priv->hw_unavailable++;
 524                         spin_unlock_irqrestore(&priv->lock, flags);
 525                 }
 526                 break;
 527
 528         case CS_EVENT_CARD_INSERTION:
 529                 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 530                 orinoco_cs_config(link);
 531                 break;
 532
 533         case CS_EVENT_PM_SUSPEND:
 534                 link->state |= DEV_SUSPEND;
 535                 /* Fall through... */
 536         case CS_EVENT_RESET_PHYSICAL:
 537                 /* Mark the device as stopped, to block IO until later */
 538                 if (link->state & DEV_CONFIG) {
 539                         /* This is probably racy, but I can't think of
 540                            a better way, short of rewriting the PCMCIA
 541                            layer to not suck :-( */
 542                         if (! test_bit(0, &card->hard_reset_in_progress)) {
 543                                 spin_lock_irqsave(&priv->lock, flags);
 544
 545                                 err = __orinoco_down(dev);
 546                                 if (err)
 547                                         printk(KERN_WARNING "%s: %s: Error %d downing interface\n",
 548                                                dev->name,
 549                                                event == CS_EVENT_PM_SUSPEND ? "SUSPEND" : "RESET_PHYSICAL",
 550                                                err);
 551
 552                                 netif_device_detach(dev);
 553                                 priv->hw_unavailable++;
 554
 555                                 spin_unlock_irqrestore(&priv->lock, flags);
 556                         }
 557
 558                         pcmcia_release_configuration(link->handle);
 559                 }
 560                 break;
 561
 562         case CS_EVENT_PM_RESUME:
 563                 link->state &= ~DEV_SUSPEND;
 564                 /* Fall through... */
 565         case CS_EVENT_CARD_RESET:
 566                 if (link->state & DEV_CONFIG) {
 567                         /* FIXME: should we double check that this is
 568                          * the same card as we had before */
 569                         pcmcia_request_configuration(link->handle, &link->conf);
 570
 571                         if (! test_bit(0, &card->hard_reset_in_progress)) {
 572                                 err = orinoco_reinit_firmware(dev);
 573                                 if (err) {
 574                                         printk(KERN_ERR "%s: Error %d re-initializing firmware\n",
 575                                                dev->name, err);
 576                                         break;
 577                                 }
 578
 579                                 spin_lock_irqsave(&priv->lock, flags);
 580
 581                                 netif_device_attach(dev);
 582                                 priv->hw_unavailable--;
 583
 584                                 if (priv->open && ! priv->hw_unavailable) {
 585                                         err = __orinoco_up(dev);
 586                                         if (err)
 587                                                 printk(KERN_ERR "%s: Error %d restarting card\n",
 588                                                        dev->name, err);
 589
 590                                 }
 591
 592                                 spin_unlock_irqrestore(&priv->lock, flags);
 593                         }
 594                 }
 595                 break;
 596         }
 597
 598         return err;
 599 }                               /* orinoco_cs_event */
 600
 601 /********************************************************************/
 602 /* Module initialization                                            */
 603 /********************************************************************/
 604
 605 /* Can't be declared "const" or the whole __initdata section will
 606  * become const */
 607 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
 608         " (David Gibson <hermes@gibson.dropbear.id.au>, "
 609         "Pavel Roskin <proski@gnu.org>, et al)";
 610
 611 static struct pcmcia_driver orinoco_driver = {
 612         .owner          = THIS_MODULE,
 613         .drv            = {
 614                 .name   = DRIVER_NAME,
 615         },
 616         .attach         = orinoco_cs_attach,
 617         .detach         = orinoco_cs_detach,
 618 };
 619
 620 static int __init
 621 init_orinoco_cs(void)
 622 {
 623         printk(KERN_DEBUG "%s\n", version);
 624
 625         return pcmcia_register_driver(&orinoco_driver);
 626 }
 627
 628 static void __exit
 629 exit_orinoco_cs(void)
 630 {
 631         pcmcia_unregister_driver(&orinoco_driver);
 632         BUG_ON(dev_list != NULL);
 633 }
 634
 635 module_init(init_orinoco_cs);
 636 module_exit(exit_orinoco_cs);