err.no Git - linux-2.6/blob - 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 irq_mask = 0xdeb8;
  38 module_param(irq_mask, int, 0444);
  39
  40 static int irq_list[4] = { -1 };
  41 module_param_array(irq_list, int, NULL, 0444);
  42
  43 static int ignore_cis_vcc;
  44 module_param(ignore_cis_vcc, int, 0444);
  45 MODULE_PARM_DESC(ignore_cis_vcc, "Ignore broken CIS VCC entry");
  46
  47
  48 #ifdef PRISM2_IO_DEBUG
  49
  50 static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v)
  51 {
  52         struct hostap_interface *iface;
  53         local_info_t *local;
  54         unsigned long flags;
  55
  56         iface = netdev_priv(dev);
  57         local = iface->local;
  58         spin_lock_irqsave(&local->lock, flags);
  59         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v);
  60         outb(v, dev->base_addr + a);
  61         spin_unlock_irqrestore(&local->lock, flags);
  62 }
  63
  64 static inline u8 hfa384x_inb_debug(struct net_device *dev, int a)
  65 {
  66         struct hostap_interface *iface;
  67         local_info_t *local;
  68         unsigned long flags;
  69         u8 v;
  70
  71         iface = netdev_priv(dev);
  72         local = iface->local;
  73         spin_lock_irqsave(&local->lock, flags);
  74         v = inb(dev->base_addr + a);
  75         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v);
  76         spin_unlock_irqrestore(&local->lock, flags);
  77         return v;
  78 }
  79
  80 static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v)
  81 {
  82         struct hostap_interface *iface;
  83         local_info_t *local;
  84         unsigned long flags;
  85
  86         iface = netdev_priv(dev);
  87         local = iface->local;
  88         spin_lock_irqsave(&local->lock, flags);
  89         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v);
  90         outw(v, dev->base_addr + a);
  91         spin_unlock_irqrestore(&local->lock, flags);
  92 }
  93
  94 static inline u16 hfa384x_inw_debug(struct net_device *dev, int a)
  95 {
  96         struct hostap_interface *iface;
  97         local_info_t *local;
  98         unsigned long flags;
  99         u16 v;
 100
 101         iface = netdev_priv(dev);
 102         local = iface->local;
 103         spin_lock_irqsave(&local->lock, flags);
 104         v = inw(dev->base_addr + a);
 105         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v);
 106         spin_unlock_irqrestore(&local->lock, flags);
 107         return v;
 108 }
 109
 110 static inline void hfa384x_outsw_debug(struct net_device *dev, int a,
 111                                        u8 *buf, int wc)
 112 {
 113         struct hostap_interface *iface;
 114         local_info_t *local;
 115         unsigned long flags;
 116
 117         iface = netdev_priv(dev);
 118         local = iface->local;
 119         spin_lock_irqsave(&local->lock, flags);
 120         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTSW, a, wc);
 121         outsw(dev->base_addr + a, buf, wc);
 122         spin_unlock_irqrestore(&local->lock, flags);
 123 }
 124
 125 static inline void hfa384x_insw_debug(struct net_device *dev, int a,
 126                                       u8 *buf, int wc)
 127 {
 128         struct hostap_interface *iface;
 129         local_info_t *local;
 130         unsigned long flags;
 131
 132         iface = netdev_priv(dev);
 133         local = iface->local;
 134         spin_lock_irqsave(&local->lock, flags);
 135         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INSW, a, wc);
 136         insw(dev->base_addr + a, buf, wc);
 137         spin_unlock_irqrestore(&local->lock, flags);
 138 }
 139
 140 #define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v))
 141 #define HFA384X_INB(a) hfa384x_inb_debug(dev, (a))
 142 #define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v))
 143 #define HFA384X_INW(a) hfa384x_inw_debug(dev, (a))
 144 #define HFA384X_OUTSW(a, buf, wc) hfa384x_outsw_debug(dev, (a), (buf), (wc))
 145 #define HFA384X_INSW(a, buf, wc) hfa384x_insw_debug(dev, (a), (buf), (wc))
 146
 147 #else /* PRISM2_IO_DEBUG */
 148
 149 #define HFA384X_OUTB(v,a) outb((v), dev->base_addr + (a))
 150 #define HFA384X_INB(a) inb(dev->base_addr + (a))
 151 #define HFA384X_OUTW(v,a) outw((v), dev->base_addr + (a))
 152 #define HFA384X_INW(a) inw(dev->base_addr + (a))
 153 #define HFA384X_INSW(a, buf, wc) insw(dev->base_addr + (a), buf, wc)
 154 #define HFA384X_OUTSW(a, buf, wc) outsw(dev->base_addr + (a), buf, wc)
 155
 156 #endif /* PRISM2_IO_DEBUG */
 157
 158
 159 static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf,
 160                             int len)
 161 {
 162         u16 d_off;
 163         u16 *pos;
 164
 165         d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
 166         pos = (u16 *) buf;
 167
 168         if (len / 2)
 169                 HFA384X_INSW(d_off, buf, len / 2);
 170         pos += len / 2;
 171
 172         if (len & 1)
 173                 *((char *) pos) = HFA384X_INB(d_off);
 174
 175         return 0;
 176 }
 177
 178
 179 static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len)
 180 {
 181         u16 d_off;
 182         u16 *pos;
 183
 184         d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
 185         pos = (u16 *) buf;
 186
 187         if (len / 2)
 188                 HFA384X_OUTSW(d_off, buf, len / 2);
 189         pos += len / 2;
 190
 191         if (len & 1)
 192                 HFA384X_OUTB(*((char *) pos), d_off);
 193
 194         return 0;
 195 }
 196
 197
 198 /* FIX: This might change at some point.. */
 199 #include "hostap_hw.c"
 200
 201
 202
 203 static void prism2_detach(dev_link_t *link);
 204 static void prism2_release(u_long arg);
 205 static int prism2_event(event_t event, int priority,
 206                         event_callback_args_t *args);
 207
 208
 209 static int prism2_pccard_card_present(local_info_t *local)
 210 {
 211         if (local->link != NULL &&
 212             ((local->link->state & (DEV_PRESENT | DEV_CONFIG)) ==
 213              (DEV_PRESENT | DEV_CONFIG)))
 214                 return 1;
 215         return 0;
 216 }
 217
 218
 219 /*
 220  * SanDisk CompactFlash WLAN Flashcard - Product Manual v1.0
 221  * Document No. 20-10-00058, January 2004
 222  * http://www.sandisk.com/pdf/industrial/ProdManualCFWLANv1.0.pdf
 223  */
 224 #define SANDISK_WLAN_ACTIVATION_OFF 0x40
 225 #define SANDISK_HCR_OFF 0x42
 226
 227
 228 static void sandisk_set_iobase(local_info_t *local)
 229 {
 230         int res;
 231         conf_reg_t reg;
 232
 233         reg.Function = 0;
 234         reg.Action = CS_WRITE;
 235         reg.Offset = 0x10; /* 0x3f0 IO base 1 */
 236         reg.Value = local->link->io.BasePort1 & 0x00ff;
 237         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 238         if (res != CS_SUCCESS) {
 239                 printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 0 -"
 240                        " res=%d\n", res);
 241         }
 242         udelay(10);
 243
 244         reg.Function = 0;
 245         reg.Action = CS_WRITE;
 246         reg.Offset = 0x12; /* 0x3f2 IO base 2 */
 247         reg.Value = (local->link->io.BasePort1 & 0xff00) >> 8;
 248         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 249         if (res != CS_SUCCESS) {
 250                 printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 1 -"
 251                        " res=%d\n", res);
 252         }
 253 }
 254
 255
 256 static void sandisk_write_hcr(local_info_t *local, int hcr)
 257 {
 258         struct net_device *dev = local->dev;
 259         int i;
 260
 261         HFA384X_OUTB(0x80, SANDISK_WLAN_ACTIVATION_OFF);
 262         udelay(50);
 263         for (i = 0; i < 10; i++) {
 264                 HFA384X_OUTB(hcr, SANDISK_HCR_OFF);
 265         }
 266         udelay(55);
 267         HFA384X_OUTB(0x45, SANDISK_WLAN_ACTIVATION_OFF);
 268 }
 269
 270
 271 static int sandisk_enable_wireless(struct net_device *dev)
 272 {
 273         int res, ret = 0;
 274         conf_reg_t reg;
 275         struct hostap_interface *iface = dev->priv;
 276         local_info_t *local = iface->local;
 277         tuple_t tuple;
 278         cisparse_t *parse = NULL;
 279         u_char buf[64];
 280
 281         if (local->link->io.NumPorts1 < 0x42) {
 282                 /* Not enough ports to be SanDisk multi-function card */
 283                 ret = -ENODEV;
 284                 goto done;
 285         }
 286
 287         parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
 288         if (parse == NULL) {
 289                 ret = -ENOMEM;
 290                 goto done;
 291         }
 292
 293         tuple.DesiredTuple = CISTPL_MANFID;
 294         tuple.Attributes = TUPLE_RETURN_COMMON;
 295         tuple.TupleData = buf;
 296         tuple.TupleDataMax = sizeof(buf);
 297         tuple.TupleOffset = 0;
 298         if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
 299             pcmcia_get_tuple_data(local->link->handle, &tuple) ||
 300             pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
 301             parse->manfid.manf != 0xd601 || parse->manfid.card != 0x0101) {
 302                 /* No SanDisk manfid found */
 303                 ret = -ENODEV;
 304                 goto done;
 305         }
 306
 307         tuple.DesiredTuple = CISTPL_LONGLINK_MFC;
 308         if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
 309             pcmcia_get_tuple_data(local->link->handle, &tuple) ||
 310             pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
 311                 parse->longlink_mfc.nfn < 2) {
 312                 /* No multi-function links found */
 313                 ret = -ENODEV;
 314                 goto done;
 315         }
 316
 317         printk(KERN_DEBUG "%s: Multi-function SanDisk ConnectPlus detected"
 318                " - using vendor-specific initialization\n", dev->name);
 319         local->sandisk_connectplus = 1;
 320
 321         reg.Function = 0;
 322         reg.Action = CS_WRITE;
 323         reg.Offset = CISREG_COR;
 324         reg.Value = COR_SOFT_RESET;
 325         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 326         if (res != CS_SUCCESS) {
 327                 printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
 328                        dev->name, res);
 329                 goto done;
 330         }
 331         mdelay(5);
 332
 333         reg.Function = 0;
 334         reg.Action = CS_WRITE;
 335         reg.Offset = CISREG_COR;
 336         /*
 337          * Do not enable interrupts here to avoid some bogus events. Interrupts
 338          * will be enabled during the first cor_sreset call.
 339          */
 340         reg.Value = COR_LEVEL_REQ | 0x8 | COR_ADDR_DECODE | COR_FUNC_ENA;
 341         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 342         if (res != CS_SUCCESS) {
 343                 printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
 344                        dev->name, res);
 345                 goto done;
 346         }
 347         mdelay(5);
 348
 349         sandisk_set_iobase(local);
 350
 351         HFA384X_OUTB(0xc5, SANDISK_WLAN_ACTIVATION_OFF);
 352         udelay(10);
 353         HFA384X_OUTB(0x4b, SANDISK_WLAN_ACTIVATION_OFF);
 354         udelay(10);
 355
 356 done:
 357         kfree(parse);
 358         return ret;
 359 }
 360
 361
 362 static void prism2_pccard_cor_sreset(local_info_t *local)
 363 {
 364         int res;
 365         conf_reg_t reg;
 366
 367         if (!prism2_pccard_card_present(local))
 368                return;
 369
 370         reg.Function = 0;
 371         reg.Action = CS_READ;
 372         reg.Offset = CISREG_COR;
 373         reg.Value = 0;
 374         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 375         if (res != CS_SUCCESS) {
 376                 printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 1 (%d)\n",
 377                        res);
 378                 return;
 379         }
 380         printk(KERN_DEBUG "prism2_pccard_cor_sreset: original COR %02x\n",
 381                reg.Value);
 382
 383         reg.Action = CS_WRITE;
 384         reg.Value |= COR_SOFT_RESET;
 385         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 386         if (res != CS_SUCCESS) {
 387                 printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 2 (%d)\n",
 388                        res);
 389                 return;
 390         }
 391
 392         mdelay(local->sandisk_connectplus ? 5 : 2);
 393
 394         reg.Value &= ~COR_SOFT_RESET;
 395         if (local->sandisk_connectplus)
 396                 reg.Value |= COR_IREQ_ENA;
 397         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 398         if (res != CS_SUCCESS) {
 399                 printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 3 (%d)\n",
 400                        res);
 401                 return;
 402         }
 403
 404         mdelay(local->sandisk_connectplus ? 5 : 2);
 405
 406         if (local->sandisk_connectplus)
 407                 sandisk_set_iobase(local);
 408 }
 409
 410
 411 static void prism2_pccard_genesis_reset(local_info_t *local, int hcr)
 412 {
 413         int res;
 414         conf_reg_t reg;
 415         int old_cor;
 416
 417         if (!prism2_pccard_card_present(local))
 418                return;
 419
 420         if (local->sandisk_connectplus) {
 421                 sandisk_write_hcr(local, hcr);
 422                 return;
 423         }
 424
 425         reg.Function = 0;
 426         reg.Action = CS_READ;
 427         reg.Offset = CISREG_COR;
 428         reg.Value = 0;
 429         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 430         if (res != CS_SUCCESS) {
 431                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 1 "
 432                        "(%d)\n", res);
 433                 return;
 434         }
 435         printk(KERN_DEBUG "prism2_pccard_genesis_sreset: original COR %02x\n",
 436                reg.Value);
 437         old_cor = reg.Value;
 438
 439         reg.Action = CS_WRITE;
 440         reg.Value |= COR_SOFT_RESET;
 441         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 442         if (res != CS_SUCCESS) {
 443                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 2 "
 444                        "(%d)\n", res);
 445                 return;
 446         }
 447
 448         mdelay(10);
 449
 450         /* Setup Genesis mode */
 451         reg.Action = CS_WRITE;
 452         reg.Value = hcr;
 453         reg.Offset = CISREG_CCSR;
 454         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 455         if (res != CS_SUCCESS) {
 456                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 3 "
 457                        "(%d)\n", res);
 458                 return;
 459         }
 460         mdelay(10);
 461
 462         reg.Action = CS_WRITE;
 463         reg.Offset = CISREG_COR;
 464         reg.Value = old_cor & ~COR_SOFT_RESET;
 465         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 466         if (res != CS_SUCCESS) {
 467                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 4 "
 468                        "(%d)\n", res);
 469                 return;
 470         }
 471
 472         mdelay(10);
 473 }
 474
 475
 476 static int prism2_pccard_dev_open(local_info_t *local)
 477 {
 478         local->link->open++;
 479         return 0;
 480 }
 481
 482
 483 static int prism2_pccard_dev_close(local_info_t *local)
 484 {
 485         if (local == NULL || local->link == NULL)
 486                 return 1;
 487
 488         if (!local->link->open) {
 489                 printk(KERN_WARNING "%s: prism2_pccard_dev_close(): "
 490                        "link not open?!\n", local->dev->name);
 491                 return 1;
 492         }
 493
 494         local->link->open--;
 495
 496         return 0;
 497 }
 498
 499
 500 static struct prism2_helper_functions prism2_pccard_funcs =
 501 {
 502         .card_present   = prism2_pccard_card_present,
 503         .cor_sreset     = prism2_pccard_cor_sreset,
 504         .dev_open       = prism2_pccard_dev_open,
 505         .dev_close      = prism2_pccard_dev_close,
 506         .genesis_reset  = prism2_pccard_genesis_reset,
 507         .hw_type        = HOSTAP_HW_PCCARD,
 508 };
 509
 510
 511 /* allocate local data and register with CardServices
 512  * initialize dev_link structure, but do not configure the card yet */
 513 static dev_link_t *prism2_attach(void)
 514 {
 515         dev_link_t *link;
 516         client_reg_t client_reg;
 517         int ret;
 518
 519         link = kmalloc(sizeof(dev_link_t), GFP_KERNEL);
 520         if (link == NULL)
 521                 return NULL;
 522
 523         memset(link, 0, sizeof(dev_link_t));
 524
 525         PDEBUG(DEBUG_HW, "%s: setting Vcc=33 (constant)\n", dev_info);
 526         link->conf.Vcc = 33;
 527         link->conf.IntType = INT_MEMORY_AND_IO;
 528
 529         /* register with CardServices */
 530         link->next = dev_list;
 531         dev_list = link;
 532         client_reg.dev_info = &dev_info;
 533         client_reg.Version = 0x0210;
 534         client_reg.event_callback_args.client_data = link;
 535         ret = pcmcia_register_client(&link->handle, &client_reg);
 536         if (ret != CS_SUCCESS) {
 537                 cs_error(link->handle, RegisterClient, ret);
 538                 prism2_detach(link);
 539                 return NULL;
 540         }
 541         return link;
 542 }
 543
 544
 545 static void prism2_detach(dev_link_t *link)
 546 {
 547         dev_link_t **linkp;
 548
 549         PDEBUG(DEBUG_FLOW, "prism2_detach\n");
 550
 551         for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
 552                 if (*linkp == link)
 553                         break;
 554         if (*linkp == NULL) {
 555                 printk(KERN_WARNING "%s: Attempt to detach non-existing "
 556                        "PCMCIA client\n", dev_info);
 557                 return;
 558         }
 559
 560         if (link->state & DEV_CONFIG) {
 561                 prism2_release((u_long)link);
 562         }
 563
 564         if (link->handle) {
 565                 int res = pcmcia_deregister_client(link->handle);
 566                 if (res) {
 567                         printk("CardService(DeregisterClient) => %d\n", res);
 568                         cs_error(link->handle, DeregisterClient, res);
 569                 }
 570         }
 571
 572         *linkp = link->next;
 573         /* release net devices */
 574         if (link->priv) {
 575                 prism2_free_local_data((struct net_device *) link->priv);
 576
 577         }
 578         kfree(link);
 579 }
 580
 581
 582 #define CS_CHECK(fn, ret) \
 583 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 584
 585 #define CFG_CHECK2(fn, retf) \
 586 do { int ret = (retf); \
 587 if (ret != 0) { \
 588         PDEBUG(DEBUG_EXTRA, "CardServices(" #fn ") returned %d\n", ret); \
 589         cs_error(link->handle, fn, ret); \
 590         goto next_entry; \
 591 } \
 592 } while (0)
 593
 594
 595 /* run after a CARD_INSERTION event is received to configure the PCMCIA
 596  * socket and make the device available to the system */
 597 static int prism2_config(dev_link_t *link)
 598 {
 599         struct net_device *dev;
 600         struct hostap_interface *iface;
 601         local_info_t *local;
 602         int ret = 1;
 603         tuple_t tuple;
 604         cisparse_t *parse;
 605         int last_fn, last_ret;
 606         u_char buf[64];
 607         config_info_t conf;
 608         cistpl_cftable_entry_t dflt = { 0 };
 609
 610         PDEBUG(DEBUG_FLOW, "prism2_config()\n");
 611
 612         parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
 613         if (parse == NULL) {
 614                 ret = -ENOMEM;
 615                 goto failed;
 616         }
 617
 618         tuple.DesiredTuple = CISTPL_CONFIG;
 619         tuple.Attributes = 0;
 620         tuple.TupleData = buf;
 621         tuple.TupleDataMax = sizeof(buf);
 622         tuple.TupleOffset = 0;
 623         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
 624         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link->handle, &tuple));
 625         CS_CHECK(ParseTuple, pcmcia_parse_tuple(link->handle, &tuple, parse));
 626         link->conf.ConfigBase = parse->config.base;
 627         link->conf.Present = parse->config.rmask[0];
 628
 629         CS_CHECK(GetConfigurationInfo,
 630                  pcmcia_get_configuration_info(link->handle, &conf));
 631         PDEBUG(DEBUG_HW, "%s: %s Vcc=%d (from config)\n", dev_info,
 632                ignore_cis_vcc ? "ignoring" : "setting", conf.Vcc);
 633         link->conf.Vcc = conf.Vcc;
 634
 635         /* Look for an appropriate configuration table entry in the CIS */
 636         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 637         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
 638         for (;;) {
 639                 cistpl_cftable_entry_t *cfg = &(parse->cftable_entry);
 640                 CFG_CHECK2(GetTupleData,
 641                            pcmcia_get_tuple_data(link->handle, &tuple));
 642                 CFG_CHECK2(ParseTuple,
 643                            pcmcia_parse_tuple(link->handle, &tuple, parse));
 644
 645                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 646                         dflt = *cfg;
 647                 if (cfg->index == 0)
 648                         goto next_entry;
 649                 link->conf.ConfigIndex = cfg->index;
 650                 PDEBUG(DEBUG_EXTRA, "Checking CFTABLE_ENTRY 0x%02X "
 651                        "(default 0x%02X)\n", cfg->index, dflt.index);
 652
 653                 /* Does this card need audio output? */
 654                 if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
 655                         link->conf.Attributes |= CONF_ENABLE_SPKR;
 656                         link->conf.Status = CCSR_AUDIO_ENA;
 657                 }
 658
 659                 /* Use power settings for Vcc and Vpp if present */
 660                 /*  Note that the CIS values need to be rescaled */
 661                 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 662                         if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] /
 663                             10000 && !ignore_cis_vcc) {
 664                                 PDEBUG(DEBUG_EXTRA, "  Vcc mismatch - skipping"
 665                                        " this entry\n");
 666                                 goto next_entry;
 667                         }
 668                 } else if (dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
 669                         if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM] /
 670                             10000 && !ignore_cis_vcc) {
 671                                 PDEBUG(DEBUG_EXTRA, "  Vcc (default) mismatch "
 672                                        "- skipping this entry\n");
 673                                 goto next_entry;
 674                         }
 675                 }
 676
 677                 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 678                         link->conf.Vpp1 = link->conf.Vpp2 =
 679                                 cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 680                 else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
 681                         link->conf.Vpp1 = link->conf.Vpp2 =
 682                                 dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
 683
 684                 /* Do we need to allocate an interrupt? */
 685                 if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
 686                         link->conf.Attributes |= CONF_ENABLE_IRQ;
 687                 else if (!(link->conf.Attributes & CONF_ENABLE_IRQ)) {
 688                         /* At least Compaq WL200 does not have IRQInfo1 set,
 689                          * but it does not work without interrupts.. */
 690                         printk("Config has no IRQ info, but trying to enable "
 691                                "IRQ anyway..\n");
 692                         link->conf.Attributes |= CONF_ENABLE_IRQ;
 693                 }
 694
 695                 /* IO window settings */
 696                 PDEBUG(DEBUG_EXTRA, "IO window settings: cfg->io.nwin=%d "
 697                        "dflt.io.nwin=%d\n",
 698                        cfg->io.nwin, dflt.io.nwin);
 699                 link->io.NumPorts1 = link->io.NumPorts2 = 0;
 700                 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
 701                         cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
 702                         link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 703                         PDEBUG(DEBUG_EXTRA, "io->flags = 0x%04X, "
 704                                "io.base=0x%04x, len=%d\n", io->flags,
 705                                io->win[0].base, io->win[0].len);
 706                         if (!(io->flags & CISTPL_IO_8BIT))
 707                                 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
 708                         if (!(io->flags & CISTPL_IO_16BIT))
 709                                 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 710                         link->io.IOAddrLines = io->flags &
 711                                 CISTPL_IO_LINES_MASK;
 712                         link->io.BasePort1 = io->win[0].base;
 713                         link->io.NumPorts1 = io->win[0].len;
 714                         if (io->nwin > 1) {
 715                                 link->io.Attributes2 = link->io.Attributes1;
 716                                 link->io.BasePort2 = io->win[1].base;
 717                                 link->io.NumPorts2 = io->win[1].len;
 718                         }
 719                 }
 720
 721                 /* This reserves IO space but doesn't actually enable it */
 722                 CFG_CHECK2(RequestIO,
 723                            pcmcia_request_io(link->handle, &link->io));
 724
 725                 /* This configuration table entry is OK */
 726                 break;
 727
 728         next_entry:
 729                 CS_CHECK(GetNextTuple,
 730                          pcmcia_get_next_tuple(link->handle, &tuple));
 731         }
 732
 733         /* Need to allocate net_device before requesting IRQ handler */
 734         dev = prism2_init_local_data(&prism2_pccard_funcs, 0);
 735         if (dev == NULL)
 736                 goto failed;
 737         link->priv = dev;
 738
 739         /*
 740          * Allocate an interrupt line.  Note that this does not assign a
 741          * handler to the interrupt, unless the 'Handler' member of the
 742          * irq structure is initialized.
 743          */
 744         if (link->conf.Attributes & CONF_ENABLE_IRQ) {
 745                 int i;
 746                 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
 747                 link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
 748                 if (irq_list[0] == -1)
 749                         link->irq.IRQInfo2 = irq_mask;
 750                 else
 751                         for (i = 0; i < 4; i++)
 752                                 link->irq.IRQInfo2 |= 1 << irq_list[i];
 753                 link->irq.Handler = prism2_interrupt;
 754                 link->irq.Instance = dev;
 755                 CS_CHECK(RequestIRQ,
 756                          pcmcia_request_irq(link->handle, &link->irq));
 757         }
 758
 759         /*
 760          * This actually configures the PCMCIA socket -- setting up
 761          * the I/O windows and the interrupt mapping, and putting the
 762          * card and host interface into "Memory and IO" mode.
 763          */
 764         CS_CHECK(RequestConfiguration,
 765                  pcmcia_request_configuration(link->handle, &link->conf));
 766
 767         dev->irq = link->irq.AssignedIRQ;
 768         dev->base_addr = link->io.BasePort1;
 769
 770         /* Finally, report what we've done */
 771         printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d",
 772                dev_info, link->conf.ConfigIndex,
 773                link->conf.Vcc / 10, link->conf.Vcc % 10);
 774         if (link->conf.Vpp1)
 775                 printk(", Vpp %d.%d", link->conf.Vpp1 / 10,
 776                        link->conf.Vpp1 % 10);
 777         if (link->conf.Attributes & CONF_ENABLE_IRQ)
 778                 printk(", irq %d", link->irq.AssignedIRQ);
 779         if (link->io.NumPorts1)
 780                 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
 781                        link->io.BasePort1+link->io.NumPorts1-1);
 782         if (link->io.NumPorts2)
 783                 printk(" & 0x%04x-0x%04x", link->io.BasePort2,
 784                        link->io.BasePort2+link->io.NumPorts2-1);
 785         printk("\n");
 786
 787         link->state |= DEV_CONFIG;
 788         link->state &= ~DEV_CONFIG_PENDING;
 789
 790         iface = netdev_priv(dev);
 791         local = iface->local;
 792         local->link = link;
 793         strcpy(local->node.dev_name, dev->name);
 794         link->dev = &local->node;
 795
 796         local->shutdown = 0;
 797
 798         sandisk_enable_wireless(dev);
 799
 800         ret = prism2_hw_config(dev, 1);
 801         if (!ret) {
 802                 ret = hostap_hw_ready(dev);
 803                 if (ret == 0 && local->ddev)
 804                         strcpy(local->node.dev_name, local->ddev->name);
 805         }
 806         kfree(parse);
 807         return ret;
 808
 809  cs_failed:
 810         cs_error(link->handle, last_fn, last_ret);
 811
 812  failed:
 813         kfree(parse);
 814         prism2_release((u_long)link);
 815         return ret;
 816 }
 817
 818
 819 static void prism2_release(u_long arg)
 820 {
 821         dev_link_t *link = (dev_link_t *)arg;
 822
 823         PDEBUG(DEBUG_FLOW, "prism2_release\n");
 824
 825         if (link->priv) {
 826                 struct net_device *dev = link->priv;
 827                 struct hostap_interface *iface;
 828
 829                 iface = netdev_priv(dev);
 830                 if (link->state & DEV_CONFIG)
 831                         prism2_hw_shutdown(dev, 0);
 832                 iface->local->shutdown = 1;
 833         }
 834
 835         if (link->win)
 836                 pcmcia_release_window(link->win);
 837         pcmcia_release_configuration(link->handle);
 838         if (link->io.NumPorts1)
 839                 pcmcia_release_io(link->handle, &link->io);
 840         if (link->irq.AssignedIRQ)
 841                 pcmcia_release_irq(link->handle, &link->irq);
 842
 843         link->state &= ~DEV_CONFIG;
 844
 845         PDEBUG(DEBUG_FLOW, "release - done\n");
 846 }
 847
 848
 849 static int prism2_event(event_t event, int priority,
 850                         event_callback_args_t *args)
 851 {
 852         dev_link_t *link = args->client_data;
 853         struct net_device *dev = (struct net_device *) link->priv;
 854
 855         switch (event) {
 856         case CS_EVENT_CARD_INSERTION:
 857                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_INSERTION\n", dev_info);
 858                 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 859                 if (prism2_config(link)) {
 860                         PDEBUG(DEBUG_EXTRA, "prism2_config() failed\n");
 861                 }
 862                 break;
 863
 864         case CS_EVENT_CARD_REMOVAL:
 865                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_REMOVAL\n", dev_info);
 866                 link->state &= ~DEV_PRESENT;
 867                 if (link->state & DEV_CONFIG) {
 868                         netif_stop_queue(dev);
 869                         netif_device_detach(dev);
 870                         prism2_release((u_long) link);
 871                 }
 872                 break;
 873
 874         case CS_EVENT_PM_SUSPEND:
 875                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_SUSPEND\n", dev_info);
 876                 link->state |= DEV_SUSPEND;
 877                 /* fall through */
 878
 879         case CS_EVENT_RESET_PHYSICAL:
 880                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_RESET_PHYSICAL\n", dev_info);
 881                 if (link->state & DEV_CONFIG) {
 882                         if (link->open) {
 883                                 netif_stop_queue(dev);
 884                                 netif_device_detach(dev);
 885                         }
 886                         prism2_suspend(dev);
 887                         pcmcia_release_configuration(link->handle);
 888                 }
 889                 break;
 890
 891         case CS_EVENT_PM_RESUME:
 892                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_RESUME\n", dev_info);
 893                 link->state &= ~DEV_SUSPEND;
 894                 /* fall through */
 895
 896         case CS_EVENT_CARD_RESET:
 897                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_RESET\n", dev_info);
 898                 if (link->state & DEV_CONFIG) {
 899                         pcmcia_request_configuration(link->handle,
 900                                                      &link->conf);
 901                         prism2_hw_shutdown(dev, 1);
 902                         prism2_hw_config(dev, link->open ? 0 : 1);
 903                         if (link->open) {
 904                                 netif_device_attach(dev);
 905                                 netif_start_queue(dev);
 906                         }
 907                 }
 908                 break;
 909
 910         default:
 911                 PDEBUG(DEBUG_EXTRA, "%s: prism2_event() - unknown event %d\n",
 912                        dev_info, event);
 913                 break;
 914         }
 915         return 0;
 916 }
 917
 918
 919 static struct pcmcia_driver hostap_driver = {
 920         .drv            = {
 921                 .name   = "hostap_cs",
 922         },
 923         .attach         = prism2_attach,
 924         .detach         = prism2_detach,
 925         .owner          = THIS_MODULE,
 926         .event          = prism2_event,
 927 };
 928
 929 static int __init init_prism2_pccard(void)
 930 {
 931         printk(KERN_INFO "%s: %s\n", dev_info, version);
 932         return pcmcia_register_driver(&hostap_driver);
 933 }
 934
 935 static void __exit exit_prism2_pccard(void)
 936 {
 937         pcmcia_unregister_driver(&hostap_driver);
 938         printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
 939 }
 940
 941
 942 module_init(init_prism2_pccard);
 943 module_exit(exit_prism2_pccard);