drivers/net/wireless/hostap/hostap_cs.c

   1 #define PRISM2_PCCARD
   2
   3 #include <linux/config.h>
   4 #include <linux/module.h>
   5 #include <linux/init.h>
   6 #include <linux/if.h>
   7 #include <linux/wait.h>
   8 #include <linux/timer.h>
   9 #include <linux/skbuff.h>
  10 #include <linux/netdevice.h>
  11 #include <linux/workqueue.h>
  12 #include <linux/wireless.h>
  13 #include <net/iw_handler.h>
  14
  15 #include <pcmcia/cs_types.h>
  16 #include <pcmcia/cs.h>
  17 #include <pcmcia/cistpl.h>
  18 #include <pcmcia/cisreg.h>
  19 #include <pcmcia/ds.h>
  20
  21 #include <asm/io.h>
  22
  23 #include "hostap_wlan.h"
  24
  25
  26 static char *version = PRISM2_VERSION " (Jouni Malinen <jkmaline@cc.hut.fi>)";
  27 static dev_info_t dev_info = "hostap_cs";
  28 static dev_link_t *dev_list = NULL;
  29
  30 MODULE_AUTHOR("Jouni Malinen");
  31 MODULE_DESCRIPTION("Support for Intersil Prism2-based 802.11 wireless LAN "
  32                    "cards (PC Card).");
  33 MODULE_SUPPORTED_DEVICE("Intersil Prism2-based WLAN cards (PC Card)");
  34 MODULE_LICENSE("GPL");
  35
  36
  37 static int ignore_cis_vcc;
  38 module_param(ignore_cis_vcc, int, 0444);
  39 MODULE_PARM_DESC(ignore_cis_vcc, "Ignore broken CIS VCC entry");
  40
  41
  42 #ifdef PRISM2_IO_DEBUG
  43
  44 static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v)
  45 {
  46         struct hostap_interface *iface;
  47         local_info_t *local;
  48         unsigned long flags;
  49
  50         iface = netdev_priv(dev);
  51         local = iface->local;
  52         spin_lock_irqsave(&local->lock, flags);
  53         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v);
  54         outb(v, dev->base_addr + a);
  55         spin_unlock_irqrestore(&local->lock, flags);
  56 }
  57
  58 static inline u8 hfa384x_inb_debug(struct net_device *dev, int a)
  59 {
  60         struct hostap_interface *iface;
  61         local_info_t *local;
  62         unsigned long flags;
  63         u8 v;
  64
  65         iface = netdev_priv(dev);
  66         local = iface->local;
  67         spin_lock_irqsave(&local->lock, flags);
  68         v = inb(dev->base_addr + a);
  69         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v);
  70         spin_unlock_irqrestore(&local->lock, flags);
  71         return v;
  72 }
  73
  74 static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v)
  75 {
  76         struct hostap_interface *iface;
  77         local_info_t *local;
  78         unsigned long flags;
  79
  80         iface = netdev_priv(dev);
  81         local = iface->local;
  82         spin_lock_irqsave(&local->lock, flags);
  83         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v);
  84         outw(v, dev->base_addr + a);
  85         spin_unlock_irqrestore(&local->lock, flags);
  86 }
  87
  88 static inline u16 hfa384x_inw_debug(struct net_device *dev, int a)
  89 {
  90         struct hostap_interface *iface;
  91         local_info_t *local;
  92         unsigned long flags;
  93         u16 v;
  94
  95         iface = netdev_priv(dev);
  96         local = iface->local;
  97         spin_lock_irqsave(&local->lock, flags);
  98         v = inw(dev->base_addr + a);
  99         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v);
 100         spin_unlock_irqrestore(&local->lock, flags);
 101         return v;
 102 }
 103
 104 static inline void hfa384x_outsw_debug(struct net_device *dev, int a,
 105                                        u8 *buf, int wc)
 106 {
 107         struct hostap_interface *iface;
 108         local_info_t *local;
 109         unsigned long flags;
 110
 111         iface = netdev_priv(dev);
 112         local = iface->local;
 113         spin_lock_irqsave(&local->lock, flags);
 114         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTSW, a, wc);
 115         outsw(dev->base_addr + a, buf, wc);
 116         spin_unlock_irqrestore(&local->lock, flags);
 117 }
 118
 119 static inline void hfa384x_insw_debug(struct net_device *dev, int a,
 120                                       u8 *buf, int wc)
 121 {
 122         struct hostap_interface *iface;
 123         local_info_t *local;
 124         unsigned long flags;
 125
 126         iface = netdev_priv(dev);
 127         local = iface->local;
 128         spin_lock_irqsave(&local->lock, flags);
 129         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INSW, a, wc);
 130         insw(dev->base_addr + a, buf, wc);
 131         spin_unlock_irqrestore(&local->lock, flags);
 132 }
 133
 134 #define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v))
 135 #define HFA384X_INB(a) hfa384x_inb_debug(dev, (a))
 136 #define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v))
 137 #define HFA384X_INW(a) hfa384x_inw_debug(dev, (a))
 138 #define HFA384X_OUTSW(a, buf, wc) hfa384x_outsw_debug(dev, (a), (buf), (wc))
 139 #define HFA384X_INSW(a, buf, wc) hfa384x_insw_debug(dev, (a), (buf), (wc))
 140
 141 #else /* PRISM2_IO_DEBUG */
 142
 143 #define HFA384X_OUTB(v,a) outb((v), dev->base_addr + (a))
 144 #define HFA384X_INB(a) inb(dev->base_addr + (a))
 145 #define HFA384X_OUTW(v,a) outw((v), dev->base_addr + (a))
 146 #define HFA384X_INW(a) inw(dev->base_addr + (a))
 147 #define HFA384X_INSW(a, buf, wc) insw(dev->base_addr + (a), buf, wc)
 148 #define HFA384X_OUTSW(a, buf, wc) outsw(dev->base_addr + (a), buf, wc)
 149
 150 #endif /* PRISM2_IO_DEBUG */
 151
 152
 153 static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf,
 154                             int len)
 155 {
 156         u16 d_off;
 157         u16 *pos;
 158
 159         d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
 160         pos = (u16 *) buf;
 161
 162         if (len / 2)
 163                 HFA384X_INSW(d_off, buf, len / 2);
 164         pos += len / 2;
 165
 166         if (len & 1)
 167                 *((char *) pos) = HFA384X_INB(d_off);
 168
 169         return 0;
 170 }
 171
 172
 173 static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len)
 174 {
 175         u16 d_off;
 176         u16 *pos;
 177
 178         d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
 179         pos = (u16 *) buf;
 180
 181         if (len / 2)
 182                 HFA384X_OUTSW(d_off, buf, len / 2);
 183         pos += len / 2;
 184
 185         if (len & 1)
 186                 HFA384X_OUTB(*((char *) pos), d_off);
 187
 188         return 0;
 189 }
 190
 191
 192 /* FIX: This might change at some point.. */
 193 #include "hostap_hw.c"
 194
 195
 196
 197 static void prism2_detach(dev_link_t *link);
 198 static void prism2_release(u_long arg);
 199 static int prism2_event(event_t event, int priority,
 200                         event_callback_args_t *args);
 201
 202
 203 static int prism2_pccard_card_present(local_info_t *local)
 204 {
 205         if (local->link != NULL &&
 206             ((local->link->state & (DEV_PRESENT | DEV_CONFIG)) ==
 207              (DEV_PRESENT | DEV_CONFIG)))
 208                 return 1;
 209         return 0;
 210 }
 211
 212
 213 /*
 214  * SanDisk CompactFlash WLAN Flashcard - Product Manual v1.0
 215  * Document No. 20-10-00058, January 2004
 216  * http://www.sandisk.com/pdf/industrial/ProdManualCFWLANv1.0.pdf
 217  */
 218 #define SANDISK_WLAN_ACTIVATION_OFF 0x40
 219 #define SANDISK_HCR_OFF 0x42
 220
 221
 222 static void sandisk_set_iobase(local_info_t *local)
 223 {
 224         int res;
 225         conf_reg_t reg;
 226
 227         reg.Function = 0;
 228         reg.Action = CS_WRITE;
 229         reg.Offset = 0x10; /* 0x3f0 IO base 1 */
 230         reg.Value = local->link->io.BasePort1 & 0x00ff;
 231         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 232         if (res != CS_SUCCESS) {
 233                 printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 0 -"
 234                        " res=%d\n", res);
 235         }
 236         udelay(10);
 237
 238         reg.Function = 0;
 239         reg.Action = CS_WRITE;
 240         reg.Offset = 0x12; /* 0x3f2 IO base 2 */
 241         reg.Value = (local->link->io.BasePort1 & 0xff00) >> 8;
 242         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 243         if (res != CS_SUCCESS) {
 244                 printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 1 -"
 245                        " res=%d\n", res);
 246         }
 247 }
 248
 249
 250 static void sandisk_write_hcr(local_info_t *local, int hcr)
 251 {
 252         struct net_device *dev = local->dev;
 253         int i;
 254
 255         HFA384X_OUTB(0x80, SANDISK_WLAN_ACTIVATION_OFF);
 256         udelay(50);
 257         for (i = 0; i < 10; i++) {
 258                 HFA384X_OUTB(hcr, SANDISK_HCR_OFF);
 259         }
 260         udelay(55);
 261         HFA384X_OUTB(0x45, SANDISK_WLAN_ACTIVATION_OFF);
 262 }
 263
 264
 265 static int sandisk_enable_wireless(struct net_device *dev)
 266 {
 267         int res, ret = 0;
 268         conf_reg_t reg;
 269         struct hostap_interface *iface = dev->priv;
 270         local_info_t *local = iface->local;
 271         tuple_t tuple;
 272         cisparse_t *parse = NULL;
 273         u_char buf[64];
 274
 275         if (local->link->io.NumPorts1 < 0x42) {
 276                 /* Not enough ports to be SanDisk multi-function card */
 277                 ret = -ENODEV;
 278                 goto done;
 279         }
 280
 281         parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
 282         if (parse == NULL) {
 283                 ret = -ENOMEM;
 284                 goto done;
 285         }
 286
 287         tuple.DesiredTuple = CISTPL_MANFID;
 288         tuple.Attributes = TUPLE_RETURN_COMMON;
 289         tuple.TupleData = buf;
 290         tuple.TupleDataMax = sizeof(buf);
 291         tuple.TupleOffset = 0;
 292         if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
 293             pcmcia_get_tuple_data(local->link->handle, &tuple) ||
 294             pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
 295             parse->manfid.manf != 0xd601 || parse->manfid.card != 0x0101) {
 296                 /* No SanDisk manfid found */
 297                 ret = -ENODEV;
 298                 goto done;
 299         }
 300
 301         tuple.DesiredTuple = CISTPL_LONGLINK_MFC;
 302         if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
 303             pcmcia_get_tuple_data(local->link->handle, &tuple) ||
 304             pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
 305                 parse->longlink_mfc.nfn < 2) {
 306                 /* No multi-function links found */
 307                 ret = -ENODEV;
 308                 goto done;
 309         }
 310
 311         printk(KERN_DEBUG "%s: Multi-function SanDisk ConnectPlus detected"
 312                " - using vendor-specific initialization\n", dev->name);
 313         local->sandisk_connectplus = 1;
 314
 315         reg.Function = 0;
 316         reg.Action = CS_WRITE;
 317         reg.Offset = CISREG_COR;
 318         reg.Value = COR_SOFT_RESET;
 319         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 320         if (res != CS_SUCCESS) {
 321                 printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
 322                        dev->name, res);
 323                 goto done;
 324         }
 325         mdelay(5);
 326
 327         reg.Function = 0;
 328         reg.Action = CS_WRITE;
 329         reg.Offset = CISREG_COR;
 330         /*
 331          * Do not enable interrupts here to avoid some bogus events. Interrupts
 332          * will be enabled during the first cor_sreset call.
 333          */
 334         reg.Value = COR_LEVEL_REQ | 0x8 | COR_ADDR_DECODE | COR_FUNC_ENA;
 335         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 336         if (res != CS_SUCCESS) {
 337                 printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
 338                        dev->name, res);
 339                 goto done;
 340         }
 341         mdelay(5);
 342
 343         sandisk_set_iobase(local);
 344
 345         HFA384X_OUTB(0xc5, SANDISK_WLAN_ACTIVATION_OFF);
 346         udelay(10);
 347         HFA384X_OUTB(0x4b, SANDISK_WLAN_ACTIVATION_OFF);
 348         udelay(10);
 349
 350 done:
 351         kfree(parse);
 352         return ret;
 353 }
 354
 355
 356 static void prism2_pccard_cor_sreset(local_info_t *local)
 357 {
 358         int res;
 359         conf_reg_t reg;
 360
 361         if (!prism2_pccard_card_present(local))
 362                return;
 363
 364         reg.Function = 0;
 365         reg.Action = CS_READ;
 366         reg.Offset = CISREG_COR;
 367         reg.Value = 0;
 368         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 369         if (res != CS_SUCCESS) {
 370                 printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 1 (%d)\n",
 371                        res);
 372                 return;
 373         }
 374         printk(KERN_DEBUG "prism2_pccard_cor_sreset: original COR %02x\n",
 375                reg.Value);
 376
 377         reg.Action = CS_WRITE;
 378         reg.Value |= COR_SOFT_RESET;
 379         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 380         if (res != CS_SUCCESS) {
 381                 printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 2 (%d)\n",
 382                        res);
 383                 return;
 384         }
 385
 386         mdelay(local->sandisk_connectplus ? 5 : 2);
 387
 388         reg.Value &= ~COR_SOFT_RESET;
 389         if (local->sandisk_connectplus)
 390                 reg.Value |= COR_IREQ_ENA;
 391         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 392         if (res != CS_SUCCESS) {
 393                 printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 3 (%d)\n",
 394                        res);
 395                 return;
 396         }
 397
 398         mdelay(local->sandisk_connectplus ? 5 : 2);
 399
 400         if (local->sandisk_connectplus)
 401                 sandisk_set_iobase(local);
 402 }
 403
 404
 405 static void prism2_pccard_genesis_reset(local_info_t *local, int hcr)
 406 {
 407         int res;
 408         conf_reg_t reg;
 409         int old_cor;
 410
 411         if (!prism2_pccard_card_present(local))
 412                return;
 413
 414         if (local->sandisk_connectplus) {
 415                 sandisk_write_hcr(local, hcr);
 416                 return;
 417         }
 418
 419         reg.Function = 0;
 420         reg.Action = CS_READ;
 421         reg.Offset = CISREG_COR;
 422         reg.Value = 0;
 423         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 424         if (res != CS_SUCCESS) {
 425                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 1 "
 426                        "(%d)\n", res);
 427                 return;
 428         }
 429         printk(KERN_DEBUG "prism2_pccard_genesis_sreset: original COR %02x\n",
 430                reg.Value);
 431         old_cor = reg.Value;
 432
 433         reg.Action = CS_WRITE;
 434         reg.Value |= COR_SOFT_RESET;
 435         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 436         if (res != CS_SUCCESS) {
 437                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 2 "
 438                        "(%d)\n", res);
 439                 return;
 440         }
 441
 442         mdelay(10);
 443
 444         /* Setup Genesis mode */
 445         reg.Action = CS_WRITE;
 446         reg.Value = hcr;
 447         reg.Offset = CISREG_CCSR;
 448         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 449         if (res != CS_SUCCESS) {
 450                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 3 "
 451                        "(%d)\n", res);
 452                 return;
 453         }
 454         mdelay(10);
 455
 456         reg.Action = CS_WRITE;
 457         reg.Offset = CISREG_COR;
 458         reg.Value = old_cor & ~COR_SOFT_RESET;
 459         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 460         if (res != CS_SUCCESS) {
 461                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 4 "
 462                        "(%d)\n", res);
 463                 return;
 464         }
 465
 466         mdelay(10);
 467 }
 468
 469
 470 static int prism2_pccard_dev_open(local_info_t *local)
 471 {
 472         local->link->open++;
 473         return 0;
 474 }
 475
 476
 477 static int prism2_pccard_dev_close(local_info_t *local)
 478 {
 479         if (local == NULL || local->link == NULL)
 480                 return 1;
 481
 482         if (!local->link->open) {
 483                 printk(KERN_WARNING "%s: prism2_pccard_dev_close(): "
 484                        "link not open?!\n", local->dev->name);
 485                 return 1;
 486         }
 487
 488         local->link->open--;
 489
 490         return 0;
 491 }
 492
 493
 494 static struct prism2_helper_functions prism2_pccard_funcs =
 495 {
 496         .card_present   = prism2_pccard_card_present,
 497         .cor_sreset     = prism2_pccard_cor_sreset,
 498         .dev_open       = prism2_pccard_dev_open,
 499         .dev_close      = prism2_pccard_dev_close,
 500         .genesis_reset  = prism2_pccard_genesis_reset,
 501         .hw_type        = HOSTAP_HW_PCCARD,
 502 };
 503
 504
 505 /* allocate local data and register with CardServices
 506  * initialize dev_link structure, but do not configure the card yet */
 507 static dev_link_t *prism2_attach(void)
 508 {
 509         dev_link_t *link;
 510         client_reg_t client_reg;
 511         int ret;
 512
 513         link = kmalloc(sizeof(dev_link_t), GFP_KERNEL);
 514         if (link == NULL)
 515                 return NULL;
 516
 517         memset(link, 0, sizeof(dev_link_t));
 518
 519         PDEBUG(DEBUG_HW, "%s: setting Vcc=33 (constant)\n", dev_info);
 520         link->conf.Vcc = 33;
 521         link->conf.IntType = INT_MEMORY_AND_IO;
 522
 523         /* register with CardServices */
 524         link->next = dev_list;
 525         dev_list = link;
 526         client_reg.dev_info = &dev_info;
 527         client_reg.Version = 0x0210;
 528         client_reg.event_callback_args.client_data = link;
 529         ret = pcmcia_register_client(&link->handle, &client_reg);
 530         if (ret != CS_SUCCESS) {
 531                 cs_error(link->handle, RegisterClient, ret);
 532                 prism2_detach(link);
 533                 return NULL;
 534         }
 535         return link;
 536 }
 537
 538
 539 static void prism2_detach(dev_link_t *link)
 540 {
 541         dev_link_t **linkp;
 542
 543         PDEBUG(DEBUG_FLOW, "prism2_detach\n");
 544
 545         for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
 546                 if (*linkp == link)
 547                         break;
 548         if (*linkp == NULL) {
 549                 printk(KERN_WARNING "%s: Attempt to detach non-existing "
 550                        "PCMCIA client\n", dev_info);
 551                 return;
 552         }
 553
 554         if (link->state & DEV_CONFIG) {
 555                 prism2_release((u_long)link);
 556         }
 557
 558         if (link->handle) {
 559                 int res = pcmcia_deregister_client(link->handle);
 560                 if (res) {
 561                         printk("CardService(DeregisterClient) => %d\n", res);
 562                         cs_error(link->handle, DeregisterClient, res);
 563                 }
 564         }
 565
 566         *linkp = link->next;
 567         /* release net devices */
 568         if (link->priv) {
 569                 prism2_free_local_data((struct net_device *) link->priv);
 570
 571         }
 572         kfree(link);
 573 }
 574
 575
 576 #define CS_CHECK(fn, ret) \
 577 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 578
 579 #define CFG_CHECK2(fn, retf) \
 580 do { int ret = (retf); \
 581 if (ret != 0) { \
 582         PDEBUG(DEBUG_EXTRA, "CardServices(" #fn ") returned %d\n", ret); \
 583         cs_error(link->handle, fn, ret); \
 584         goto next_entry; \
 585 } \
 586 } while (0)
 587
 588
 589 /* run after a CARD_INSERTION event is received to configure the PCMCIA
 590  * socket and make the device available to the system */
 591 static int prism2_config(dev_link_t *link)
 592 {
 593         struct net_device *dev;
 594         struct hostap_interface *iface;
 595         local_info_t *local;
 596         int ret = 1;
 597         tuple_t tuple;
 598         cisparse_t *parse;
 599         int last_fn, last_ret;
 600         u_char buf[64];
 601         config_info_t conf;
 602         cistpl_cftable_entry_t dflt = { 0 };
 603
 604         PDEBUG(DEBUG_FLOW, "prism2_config()\n");
 605
 606         parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
 607         if (parse == NULL) {
 608                 ret = -ENOMEM;
 609                 goto failed;
 610         }
 611
 612         tuple.DesiredTuple = CISTPL_CONFIG;
 613         tuple.Attributes = 0;
 614         tuple.TupleData = buf;
 615         tuple.TupleDataMax = sizeof(buf);
 616         tuple.TupleOffset = 0;
 617         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
 618         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link->handle, &tuple));
 619         CS_CHECK(ParseTuple, pcmcia_parse_tuple(link->handle, &tuple, parse));
 620         link->conf.ConfigBase = parse->config.base;
 621         link->conf.Present = parse->config.rmask[0];
 622
 623         CS_CHECK(GetConfigurationInfo,
 624                  pcmcia_get_configuration_info(link->handle, &conf));
 625         PDEBUG(DEBUG_HW, "%s: %s Vcc=%d (from config)\n", dev_info,
 626                ignore_cis_vcc ? "ignoring" : "setting", conf.Vcc);
 627         link->conf.Vcc = conf.Vcc;
 628
 629         /* Look for an appropriate configuration table entry in the CIS */
 630         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 631         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
 632         for (;;) {
 633                 cistpl_cftable_entry_t *cfg = &(parse->cftable_entry);
 634                 CFG_CHECK2(GetTupleData,
 635                            pcmcia_get_tuple_data(link->handle, &tuple));
 636                 CFG_CHECK2(ParseTuple,
 637                            pcmcia_parse_tuple(link->handle, &tuple, parse));
 638
 639                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 640                         dflt = *cfg;
 641                 if (cfg->index == 0)
 642                         goto next_entry;
 643                 link->conf.ConfigIndex = cfg->index;
 644                 PDEBUG(DEBUG_EXTRA, "Checking CFTABLE_ENTRY 0x%02X "
 645                        "(default 0x%02X)\n", cfg->index, dflt.index);
 646
 647                 /* Does this card need audio output? */
 648                 if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
 649                         link->conf.Attributes |= CONF_ENABLE_SPKR;
 650                         link->conf.Status = CCSR_AUDIO_ENA;
 651                 }
 652
 653                 /* Use power settings for Vcc and Vpp if present */
 654                 /*  Note that the CIS values need to be rescaled */
 655                 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 656                         if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] /
 657                             10000 && !ignore_cis_vcc) {
 658                                 PDEBUG(DEBUG_EXTRA, "  Vcc mismatch - skipping"
 659                                        " this entry\n");
 660                                 goto next_entry;
 661                         }
 662                 } else if (dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
 663                         if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM] /
 664                             10000 && !ignore_cis_vcc) {
 665                                 PDEBUG(DEBUG_EXTRA, "  Vcc (default) mismatch "
 666                                        "- skipping this entry\n");
 667                                 goto next_entry;
 668                         }
 669                 }
 670
 671                 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 672                         link->conf.Vpp1 = link->conf.Vpp2 =
 673                                 cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 674                 else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
 675                         link->conf.Vpp1 = link->conf.Vpp2 =
 676                                 dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
 677
 678                 /* Do we need to allocate an interrupt? */
 679                 if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
 680                         link->conf.Attributes |= CONF_ENABLE_IRQ;
 681                 else if (!(link->conf.Attributes & CONF_ENABLE_IRQ)) {
 682                         /* At least Compaq WL200 does not have IRQInfo1 set,
 683                          * but it does not work without interrupts.. */
 684                         printk("Config has no IRQ info, but trying to enable "
 685                                "IRQ anyway..\n");
 686                         link->conf.Attributes |= CONF_ENABLE_IRQ;
 687                 }
 688
 689                 /* IO window settings */
 690                 PDEBUG(DEBUG_EXTRA, "IO window settings: cfg->io.nwin=%d "
 691                        "dflt.io.nwin=%d\n",
 692                        cfg->io.nwin, dflt.io.nwin);
 693                 link->io.NumPorts1 = link->io.NumPorts2 = 0;
 694                 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
 695                         cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
 696                         link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 697                         PDEBUG(DEBUG_EXTRA, "io->flags = 0x%04X, "
 698                                "io.base=0x%04x, len=%d\n", io->flags,
 699                                io->win[0].base, io->win[0].len);
 700                         if (!(io->flags & CISTPL_IO_8BIT))
 701                                 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
 702                         if (!(io->flags & CISTPL_IO_16BIT))
 703                                 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 704                         link->io.IOAddrLines = io->flags &
 705                                 CISTPL_IO_LINES_MASK;
 706                         link->io.BasePort1 = io->win[0].base;
 707                         link->io.NumPorts1 = io->win[0].len;
 708                         if (io->nwin > 1) {
 709                                 link->io.Attributes2 = link->io.Attributes1;
 710                                 link->io.BasePort2 = io->win[1].base;
 711                                 link->io.NumPorts2 = io->win[1].len;
 712                         }
 713                 }
 714
 715                 /* This reserves IO space but doesn't actually enable it */
 716                 CFG_CHECK2(RequestIO,
 717                            pcmcia_request_io(link->handle, &link->io));
 718
 719                 /* This configuration table entry is OK */
 720                 break;
 721
 722         next_entry:
 723                 CS_CHECK(GetNextTuple,
 724                          pcmcia_get_next_tuple(link->handle, &tuple));
 725         }
 726
 727         /* Need to allocate net_device before requesting IRQ handler */
 728         dev = prism2_init_local_data(&prism2_pccard_funcs, 0,
 729                                      &handle_to_dev(link->handle));
 730         if (dev == NULL)
 731                 goto failed;
 732         link->priv = dev;
 733
 734         /*
 735          * Allocate an interrupt line.  Note that this does not assign a
 736          * handler to the interrupt, unless the 'Handler' member of the
 737          * irq structure is initialized.
 738          */
 739         if (link->conf.Attributes & CONF_ENABLE_IRQ) {
 740                 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
 741                 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 742                 link->irq.Handler = prism2_interrupt;
 743                 link->irq.Instance = dev;
 744                 CS_CHECK(RequestIRQ,
 745                          pcmcia_request_irq(link->handle, &link->irq));
 746         }
 747
 748         /*
 749          * This actually configures the PCMCIA socket -- setting up
 750          * the I/O windows and the interrupt mapping, and putting the
 751          * card and host interface into "Memory and IO" mode.
 752          */
 753         CS_CHECK(RequestConfiguration,
 754                  pcmcia_request_configuration(link->handle, &link->conf));
 755
 756         dev->irq = link->irq.AssignedIRQ;
 757         dev->base_addr = link->io.BasePort1;
 758
 759         /* Finally, report what we've done */
 760         printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d",
 761                dev_info, link->conf.ConfigIndex,
 762                link->conf.Vcc / 10, link->conf.Vcc % 10);
 763         if (link->conf.Vpp1)
 764                 printk(", Vpp %d.%d", link->conf.Vpp1 / 10,
 765                        link->conf.Vpp1 % 10);
 766         if (link->conf.Attributes & CONF_ENABLE_IRQ)
 767                 printk(", irq %d", link->irq.AssignedIRQ);
 768         if (link->io.NumPorts1)
 769                 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
 770                        link->io.BasePort1+link->io.NumPorts1-1);
 771         if (link->io.NumPorts2)
 772                 printk(" & 0x%04x-0x%04x", link->io.BasePort2,
 773                        link->io.BasePort2+link->io.NumPorts2-1);
 774         printk("\n");
 775
 776         link->state |= DEV_CONFIG;
 777         link->state &= ~DEV_CONFIG_PENDING;
 778
 779         iface = netdev_priv(dev);
 780         local = iface->local;
 781         local->link = link;
 782         strcpy(local->node.dev_name, dev->name);
 783         link->dev = &local->node;
 784
 785         local->shutdown = 0;
 786
 787         sandisk_enable_wireless(dev);
 788
 789         ret = prism2_hw_config(dev, 1);
 790         if (!ret) {
 791                 ret = hostap_hw_ready(dev);
 792                 if (ret == 0 && local->ddev)
 793                         strcpy(local->node.dev_name, local->ddev->name);
 794         }
 795         kfree(parse);
 796         return ret;
 797
 798  cs_failed:
 799         cs_error(link->handle, last_fn, last_ret);
 800
 801  failed:
 802         kfree(parse);
 803         prism2_release((u_long)link);
 804         return ret;
 805 }
 806
 807
 808 static void prism2_release(u_long arg)
 809 {
 810         dev_link_t *link = (dev_link_t *)arg;
 811
 812         PDEBUG(DEBUG_FLOW, "prism2_release\n");
 813
 814         if (link->priv) {
 815                 struct net_device *dev = link->priv;
 816                 struct hostap_interface *iface;
 817
 818                 iface = netdev_priv(dev);
 819                 if (link->state & DEV_CONFIG)
 820                         prism2_hw_shutdown(dev, 0);
 821                 iface->local->shutdown = 1;
 822         }
 823
 824         if (link->win)
 825                 pcmcia_release_window(link->win);
 826         pcmcia_release_configuration(link->handle);
 827         if (link->io.NumPorts1)
 828                 pcmcia_release_io(link->handle, &link->io);
 829         if (link->irq.AssignedIRQ)
 830                 pcmcia_release_irq(link->handle, &link->irq);
 831
 832         link->state &= ~DEV_CONFIG;
 833
 834         PDEBUG(DEBUG_FLOW, "release - done\n");
 835 }
 836
 837
 838 static int prism2_event(event_t event, int priority,
 839                         event_callback_args_t *args)
 840 {
 841         dev_link_t *link = args->client_data;
 842         struct net_device *dev = (struct net_device *) link->priv;
 843
 844         switch (event) {
 845         case CS_EVENT_CARD_INSERTION:
 846                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_INSERTION\n", dev_info);
 847                 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 848                 if (prism2_config(link)) {
 849                         PDEBUG(DEBUG_EXTRA, "prism2_config() failed\n");
 850                 }
 851                 break;
 852
 853         case CS_EVENT_CARD_REMOVAL:
 854                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_REMOVAL\n", dev_info);
 855                 link->state &= ~DEV_PRESENT;
 856                 if (link->state & DEV_CONFIG) {
 857                         netif_stop_queue(dev);
 858                         netif_device_detach(dev);
 859                         prism2_release((u_long) link);
 860                 }
 861                 break;
 862
 863         case CS_EVENT_PM_SUSPEND:
 864                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_SUSPEND\n", dev_info);
 865                 link->state |= DEV_SUSPEND;
 866                 /* fall through */
 867
 868         case CS_EVENT_RESET_PHYSICAL:
 869                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_RESET_PHYSICAL\n", dev_info);
 870                 if (link->state & DEV_CONFIG) {
 871                         if (link->open) {
 872                                 netif_stop_queue(dev);
 873                                 netif_device_detach(dev);
 874                         }
 875                         prism2_suspend(dev);
 876                         pcmcia_release_configuration(link->handle);
 877                 }
 878                 break;
 879
 880         case CS_EVENT_PM_RESUME:
 881                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_RESUME\n", dev_info);
 882                 link->state &= ~DEV_SUSPEND;
 883                 /* fall through */
 884
 885         case CS_EVENT_CARD_RESET:
 886                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_RESET\n", dev_info);
 887                 if (link->state & DEV_CONFIG) {
 888                         pcmcia_request_configuration(link->handle,
 889                                                      &link->conf);
 890                         prism2_hw_shutdown(dev, 1);
 891                         prism2_hw_config(dev, link->open ? 0 : 1);
 892                         if (link->open) {
 893                                 netif_device_attach(dev);
 894                                 netif_start_queue(dev);
 895                         }
 896                 }
 897                 break;
 898
 899         default:
 900                 PDEBUG(DEBUG_EXTRA, "%s: prism2_event() - unknown event %d\n",
 901                        dev_info, event);
 902                 break;
 903         }
 904         return 0;
 905 }
 906
 907
 908 static struct pcmcia_driver hostap_driver = {
 909         .drv            = {
 910                 .name   = "hostap_cs",
 911         },
 912         .attach         = prism2_attach,
 913         .detach         = prism2_detach,
 914         .owner          = THIS_MODULE,
 915         .event          = prism2_event,
 916 };
 917
 918 static int __init init_prism2_pccard(void)
 919 {
 920         printk(KERN_INFO "%s: %s\n", dev_info, version);
 921         return pcmcia_register_driver(&hostap_driver);
 922 }
 923
 924 static void __exit exit_prism2_pccard(void)
 925 {
 926         pcmcia_unregister_driver(&hostap_driver);
 927         printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
 928 }
 929
 930
 931 module_init(init_prism2_pccard);
 932 module_exit(exit_prism2_pccard);