drivers/net/wireless/hostap/hostap_cs.c

   1 #define PRISM2_PCCARD
   2
   3 #include <linux/config.h>
   4 #include <linux/version.h>
   5 #include <linux/module.h>
   6 #include <linux/init.h>
   7 #include <linux/if.h>
   8 #include <linux/wait.h>
   9 #include <linux/timer.h>
  10 #include <linux/skbuff.h>
  11 #include <linux/netdevice.h>
  12 #include <linux/workqueue.h>
  13 #include <linux/wireless.h>
  14 #include <net/iw_handler.h>
  15
  16 #include <pcmcia/version.h>
  17 #include <pcmcia/cs_types.h>
  18 #include <pcmcia/cs.h>
  19 #include <pcmcia/cistpl.h>
  20 #include <pcmcia/cisreg.h>
  21 #include <pcmcia/ds.h>
  22
  23 #include <asm/io.h>
  24
  25 #include "hostap_wlan.h"
  26
  27
  28 static char *version = PRISM2_VERSION " (Jouni Malinen <jkmaline@cc.hut.fi>)";
  29 static dev_info_t dev_info = "hostap_cs";
  30 static dev_link_t *dev_list = NULL;
  31
  32 MODULE_AUTHOR("Jouni Malinen");
  33 MODULE_DESCRIPTION("Support for Intersil Prism2-based 802.11 wireless LAN "
  34                    "cards (PC Card).");
  35 MODULE_SUPPORTED_DEVICE("Intersil Prism2-based WLAN cards (PC Card)");
  36 MODULE_LICENSE("GPL");
  37
  38
  39 static int irq_mask = 0xdeb8;
  40 module_param(irq_mask, int, 0444);
  41
  42 static int irq_list[4] = { -1 };
  43 module_param_array(irq_list, int, NULL, 0444);
  44
  45 static int ignore_cis_vcc;
  46 module_param(ignore_cis_vcc, int, 0444);
  47 MODULE_PARM_DESC(ignore_cis_vcc, "Ignore broken CIS VCC entry");
  48
  49
  50 #ifdef PRISM2_IO_DEBUG
  51
  52 static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v)
  53 {
  54         struct hostap_interface *iface;
  55         local_info_t *local;
  56         unsigned long flags;
  57
  58         iface = netdev_priv(dev);
  59         local = iface->local;
  60         spin_lock_irqsave(&local->lock, flags);
  61         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v);
  62         outb(v, dev->base_addr + a);
  63         spin_unlock_irqrestore(&local->lock, flags);
  64 }
  65
  66 static inline u8 hfa384x_inb_debug(struct net_device *dev, int a)
  67 {
  68         struct hostap_interface *iface;
  69         local_info_t *local;
  70         unsigned long flags;
  71         u8 v;
  72
  73         iface = netdev_priv(dev);
  74         local = iface->local;
  75         spin_lock_irqsave(&local->lock, flags);
  76         v = inb(dev->base_addr + a);
  77         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v);
  78         spin_unlock_irqrestore(&local->lock, flags);
  79         return v;
  80 }
  81
  82 static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v)
  83 {
  84         struct hostap_interface *iface;
  85         local_info_t *local;
  86         unsigned long flags;
  87
  88         iface = netdev_priv(dev);
  89         local = iface->local;
  90         spin_lock_irqsave(&local->lock, flags);
  91         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v);
  92         outw(v, dev->base_addr + a);
  93         spin_unlock_irqrestore(&local->lock, flags);
  94 }
  95
  96 static inline u16 hfa384x_inw_debug(struct net_device *dev, int a)
  97 {
  98         struct hostap_interface *iface;
  99         local_info_t *local;
 100         unsigned long flags;
 101         u16 v;
 102
 103         iface = netdev_priv(dev);
 104         local = iface->local;
 105         spin_lock_irqsave(&local->lock, flags);
 106         v = inw(dev->base_addr + a);
 107         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v);
 108         spin_unlock_irqrestore(&local->lock, flags);
 109         return v;
 110 }
 111
 112 static inline void hfa384x_outsw_debug(struct net_device *dev, int a,
 113                                        u8 *buf, int wc)
 114 {
 115         struct hostap_interface *iface;
 116         local_info_t *local;
 117         unsigned long flags;
 118
 119         iface = netdev_priv(dev);
 120         local = iface->local;
 121         spin_lock_irqsave(&local->lock, flags);
 122         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTSW, a, wc);
 123         outsw(dev->base_addr + a, buf, wc);
 124         spin_unlock_irqrestore(&local->lock, flags);
 125 }
 126
 127 static inline void hfa384x_insw_debug(struct net_device *dev, int a,
 128                                       u8 *buf, int wc)
 129 {
 130         struct hostap_interface *iface;
 131         local_info_t *local;
 132         unsigned long flags;
 133
 134         iface = netdev_priv(dev);
 135         local = iface->local;
 136         spin_lock_irqsave(&local->lock, flags);
 137         prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INSW, a, wc);
 138         insw(dev->base_addr + a, buf, wc);
 139         spin_unlock_irqrestore(&local->lock, flags);
 140 }
 141
 142 #define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v))
 143 #define HFA384X_INB(a) hfa384x_inb_debug(dev, (a))
 144 #define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v))
 145 #define HFA384X_INW(a) hfa384x_inw_debug(dev, (a))
 146 #define HFA384X_OUTSW(a, buf, wc) hfa384x_outsw_debug(dev, (a), (buf), (wc))
 147 #define HFA384X_INSW(a, buf, wc) hfa384x_insw_debug(dev, (a), (buf), (wc))
 148
 149 #else /* PRISM2_IO_DEBUG */
 150
 151 #define HFA384X_OUTB(v,a) outb((v), dev->base_addr + (a))
 152 #define HFA384X_INB(a) inb(dev->base_addr + (a))
 153 #define HFA384X_OUTW(v,a) outw((v), dev->base_addr + (a))
 154 #define HFA384X_INW(a) inw(dev->base_addr + (a))
 155 #define HFA384X_INSW(a, buf, wc) insw(dev->base_addr + (a), buf, wc)
 156 #define HFA384X_OUTSW(a, buf, wc) outsw(dev->base_addr + (a), buf, wc)
 157
 158 #endif /* PRISM2_IO_DEBUG */
 159
 160
 161 static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf,
 162                             int len)
 163 {
 164         u16 d_off;
 165         u16 *pos;
 166
 167         d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
 168         pos = (u16 *) buf;
 169
 170         if (len / 2)
 171                 HFA384X_INSW(d_off, buf, len / 2);
 172         pos += len / 2;
 173
 174         if (len & 1)
 175                 *((char *) pos) = HFA384X_INB(d_off);
 176
 177         return 0;
 178 }
 179
 180
 181 static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len)
 182 {
 183         u16 d_off;
 184         u16 *pos;
 185
 186         d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
 187         pos = (u16 *) buf;
 188
 189         if (len / 2)
 190                 HFA384X_OUTSW(d_off, buf, len / 2);
 191         pos += len / 2;
 192
 193         if (len & 1)
 194                 HFA384X_OUTB(*((char *) pos), d_off);
 195
 196         return 0;
 197 }
 198
 199
 200 /* FIX: This might change at some point.. */
 201 #include "hostap_hw.c"
 202
 203
 204
 205 static void prism2_detach(dev_link_t *link);
 206 static void prism2_release(u_long arg);
 207 static int prism2_event(event_t event, int priority,
 208                         event_callback_args_t *args);
 209
 210
 211 static int prism2_pccard_card_present(local_info_t *local)
 212 {
 213         if (local->link != NULL &&
 214             ((local->link->state & (DEV_PRESENT | DEV_CONFIG)) ==
 215              (DEV_PRESENT | DEV_CONFIG)))
 216                 return 1;
 217         return 0;
 218 }
 219
 220
 221 /*
 222  * SanDisk CompactFlash WLAN Flashcard - Product Manual v1.0
 223  * Document No. 20-10-00058, January 2004
 224  * http://www.sandisk.com/pdf/industrial/ProdManualCFWLANv1.0.pdf
 225  */
 226 #define SANDISK_WLAN_ACTIVATION_OFF 0x40
 227 #define SANDISK_HCR_OFF 0x42
 228
 229
 230 static void sandisk_set_iobase(local_info_t *local)
 231 {
 232         int res;
 233         conf_reg_t reg;
 234
 235         reg.Function = 0;
 236         reg.Action = CS_WRITE;
 237         reg.Offset = 0x10; /* 0x3f0 IO base 1 */
 238         reg.Value = local->link->io.BasePort1 & 0x00ff;
 239         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 240         if (res != CS_SUCCESS) {
 241                 printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 0 -"
 242                        " res=%d\n", res);
 243         }
 244         udelay(10);
 245
 246         reg.Function = 0;
 247         reg.Action = CS_WRITE;
 248         reg.Offset = 0x12; /* 0x3f2 IO base 2 */
 249         reg.Value = (local->link->io.BasePort1 & 0xff00) >> 8;
 250         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 251         if (res != CS_SUCCESS) {
 252                 printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 1 -"
 253                        " res=%d\n", res);
 254         }
 255 }
 256
 257
 258 static void sandisk_write_hcr(local_info_t *local, int hcr)
 259 {
 260         struct net_device *dev = local->dev;
 261         int i;
 262
 263         HFA384X_OUTB(0x80, SANDISK_WLAN_ACTIVATION_OFF);
 264         udelay(50);
 265         for (i = 0; i < 10; i++) {
 266                 HFA384X_OUTB(hcr, SANDISK_HCR_OFF);
 267         }
 268         udelay(55);
 269         HFA384X_OUTB(0x45, SANDISK_WLAN_ACTIVATION_OFF);
 270 }
 271
 272
 273 static int sandisk_enable_wireless(struct net_device *dev)
 274 {
 275         int res, ret = 0;
 276         conf_reg_t reg;
 277         struct hostap_interface *iface = dev->priv;
 278         local_info_t *local = iface->local;
 279         tuple_t tuple;
 280         cisparse_t *parse = NULL;
 281         u_char buf[64];
 282
 283         if (local->link->io.NumPorts1 < 0x42) {
 284                 /* Not enough ports to be SanDisk multi-function card */
 285                 ret = -ENODEV;
 286                 goto done;
 287         }
 288
 289         parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
 290         if (parse == NULL) {
 291                 ret = -ENOMEM;
 292                 goto done;
 293         }
 294
 295         tuple.DesiredTuple = CISTPL_MANFID;
 296         tuple.Attributes = TUPLE_RETURN_COMMON;
 297         tuple.TupleData = buf;
 298         tuple.TupleDataMax = sizeof(buf);
 299         tuple.TupleOffset = 0;
 300         if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
 301             pcmcia_get_tuple_data(local->link->handle, &tuple) ||
 302             pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
 303             parse->manfid.manf != 0xd601 || parse->manfid.card != 0x0101) {
 304                 /* No SanDisk manfid found */
 305                 ret = -ENODEV;
 306                 goto done;
 307         }
 308
 309         tuple.DesiredTuple = CISTPL_LONGLINK_MFC;
 310         if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
 311             pcmcia_get_tuple_data(local->link->handle, &tuple) ||
 312             pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
 313                 parse->longlink_mfc.nfn < 2) {
 314                 /* No multi-function links found */
 315                 ret = -ENODEV;
 316                 goto done;
 317         }
 318
 319         printk(KERN_DEBUG "%s: Multi-function SanDisk ConnectPlus detected"
 320                " - using vendor-specific initialization\n", dev->name);
 321         local->sandisk_connectplus = 1;
 322
 323         reg.Function = 0;
 324         reg.Action = CS_WRITE;
 325         reg.Offset = CISREG_COR;
 326         reg.Value = COR_SOFT_RESET;
 327         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 328         if (res != CS_SUCCESS) {
 329                 printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
 330                        dev->name, res);
 331                 goto done;
 332         }
 333         mdelay(5);
 334
 335         reg.Function = 0;
 336         reg.Action = CS_WRITE;
 337         reg.Offset = CISREG_COR;
 338         /*
 339          * Do not enable interrupts here to avoid some bogus events. Interrupts
 340          * will be enabled during the first cor_sreset call.
 341          */
 342         reg.Value = COR_LEVEL_REQ | 0x8 | COR_ADDR_DECODE | COR_FUNC_ENA;
 343         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 344         if (res != CS_SUCCESS) {
 345                 printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
 346                        dev->name, res);
 347                 goto done;
 348         }
 349         mdelay(5);
 350
 351         sandisk_set_iobase(local);
 352
 353         HFA384X_OUTB(0xc5, SANDISK_WLAN_ACTIVATION_OFF);
 354         udelay(10);
 355         HFA384X_OUTB(0x4b, SANDISK_WLAN_ACTIVATION_OFF);
 356         udelay(10);
 357
 358 done:
 359         kfree(parse);
 360         return ret;
 361 }
 362
 363
 364 static void prism2_pccard_cor_sreset(local_info_t *local)
 365 {
 366         int res;
 367         conf_reg_t reg;
 368
 369         if (!prism2_pccard_card_present(local))
 370                return;
 371
 372         reg.Function = 0;
 373         reg.Action = CS_READ;
 374         reg.Offset = CISREG_COR;
 375         reg.Value = 0;
 376         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 377         if (res != CS_SUCCESS) {
 378                 printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 1 (%d)\n",
 379                        res);
 380                 return;
 381         }
 382         printk(KERN_DEBUG "prism2_pccard_cor_sreset: original COR %02x\n",
 383                reg.Value);
 384
 385         reg.Action = CS_WRITE;
 386         reg.Value |= COR_SOFT_RESET;
 387         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 388         if (res != CS_SUCCESS) {
 389                 printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 2 (%d)\n",
 390                        res);
 391                 return;
 392         }
 393
 394         mdelay(local->sandisk_connectplus ? 5 : 2);
 395
 396         reg.Value &= ~COR_SOFT_RESET;
 397         if (local->sandisk_connectplus)
 398                 reg.Value |= COR_IREQ_ENA;
 399         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 400         if (res != CS_SUCCESS) {
 401                 printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 3 (%d)\n",
 402                        res);
 403                 return;
 404         }
 405
 406         mdelay(local->sandisk_connectplus ? 5 : 2);
 407
 408         if (local->sandisk_connectplus)
 409                 sandisk_set_iobase(local);
 410 }
 411
 412
 413 static void prism2_pccard_genesis_reset(local_info_t *local, int hcr)
 414 {
 415         int res;
 416         conf_reg_t reg;
 417         int old_cor;
 418
 419         if (!prism2_pccard_card_present(local))
 420                return;
 421
 422         if (local->sandisk_connectplus) {
 423                 sandisk_write_hcr(local, hcr);
 424                 return;
 425         }
 426
 427         reg.Function = 0;
 428         reg.Action = CS_READ;
 429         reg.Offset = CISREG_COR;
 430         reg.Value = 0;
 431         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 432         if (res != CS_SUCCESS) {
 433                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 1 "
 434                        "(%d)\n", res);
 435                 return;
 436         }
 437         printk(KERN_DEBUG "prism2_pccard_genesis_sreset: original COR %02x\n",
 438                reg.Value);
 439         old_cor = reg.Value;
 440
 441         reg.Action = CS_WRITE;
 442         reg.Value |= COR_SOFT_RESET;
 443         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 444         if (res != CS_SUCCESS) {
 445                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 2 "
 446                        "(%d)\n", res);
 447                 return;
 448         }
 449
 450         mdelay(10);
 451
 452         /* Setup Genesis mode */
 453         reg.Action = CS_WRITE;
 454         reg.Value = hcr;
 455         reg.Offset = CISREG_CCSR;
 456         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 457         if (res != CS_SUCCESS) {
 458                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 3 "
 459                        "(%d)\n", res);
 460                 return;
 461         }
 462         mdelay(10);
 463
 464         reg.Action = CS_WRITE;
 465         reg.Offset = CISREG_COR;
 466         reg.Value = old_cor & ~COR_SOFT_RESET;
 467         res = pcmcia_access_configuration_register(local->link->handle, &reg);
 468         if (res != CS_SUCCESS) {
 469                 printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 4 "
 470                        "(%d)\n", res);
 471                 return;
 472         }
 473
 474         mdelay(10);
 475 }
 476
 477
 478 static int prism2_pccard_dev_open(local_info_t *local)
 479 {
 480         local->link->open++;
 481         return 0;
 482 }
 483
 484
 485 static int prism2_pccard_dev_close(local_info_t *local)
 486 {
 487         if (local == NULL || local->link == NULL)
 488                 return 1;
 489
 490         if (!local->link->open) {
 491                 printk(KERN_WARNING "%s: prism2_pccard_dev_close(): "
 492                        "link not open?!\n", local->dev->name);
 493                 return 1;
 494         }
 495
 496         local->link->open--;
 497
 498         return 0;
 499 }
 500
 501
 502 static struct prism2_helper_functions prism2_pccard_funcs =
 503 {
 504         .card_present   = prism2_pccard_card_present,
 505         .cor_sreset     = prism2_pccard_cor_sreset,
 506         .dev_open       = prism2_pccard_dev_open,
 507         .dev_close      = prism2_pccard_dev_close,
 508         .genesis_reset  = prism2_pccard_genesis_reset,
 509         .hw_type        = HOSTAP_HW_PCCARD,
 510 };
 511
 512
 513 /* allocate local data and register with CardServices
 514  * initialize dev_link structure, but do not configure the card yet */
 515 static dev_link_t *prism2_attach(void)
 516 {
 517         dev_link_t *link;
 518         client_reg_t client_reg;
 519         int ret;
 520
 521         link = kmalloc(sizeof(dev_link_t), GFP_KERNEL);
 522         if (link == NULL)
 523                 return NULL;
 524
 525         memset(link, 0, sizeof(dev_link_t));
 526
 527         PDEBUG(DEBUG_HW, "%s: setting Vcc=33 (constant)\n", dev_info);
 528         link->conf.Vcc = 33;
 529         link->conf.IntType = INT_MEMORY_AND_IO;
 530
 531         /* register with CardServices */
 532         link->next = dev_list;
 533         dev_list = link;
 534         client_reg.dev_info = &dev_info;
 535         client_reg.Attributes = INFO_IO_CLIENT;
 536         client_reg.EventMask = CS_EVENT_CARD_INSERTION |
 537                 CS_EVENT_CARD_REMOVAL |
 538                 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
 539                 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
 540         client_reg.event_handler = &prism2_event;
 541         client_reg.Version = 0x0210;
 542         client_reg.event_callback_args.client_data = link;
 543         ret = pcmcia_register_client(&link->handle, &client_reg);
 544         if (ret != CS_SUCCESS) {
 545                 cs_error(link->handle, RegisterClient, ret);
 546                 prism2_detach(link);
 547                 return NULL;
 548         }
 549         return link;
 550 }
 551
 552
 553 static void prism2_detach(dev_link_t *link)
 554 {
 555         dev_link_t **linkp;
 556
 557         PDEBUG(DEBUG_FLOW, "prism2_detach\n");
 558
 559         for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
 560                 if (*linkp == link)
 561                         break;
 562         if (*linkp == NULL) {
 563                 printk(KERN_WARNING "%s: Attempt to detach non-existing "
 564                        "PCMCIA client\n", dev_info);
 565                 return;
 566         }
 567
 568         if (link->state & DEV_CONFIG) {
 569                 prism2_release((u_long)link);
 570         }
 571
 572         if (link->handle) {
 573                 int res = pcmcia_deregister_client(link->handle);
 574                 if (res) {
 575                         printk("CardService(DeregisterClient) => %d\n", res);
 576                         cs_error(link->handle, DeregisterClient, res);
 577                 }
 578         }
 579
 580         *linkp = link->next;
 581         /* release net devices */
 582         if (link->priv) {
 583                 prism2_free_local_data((struct net_device *) link->priv);
 584
 585         }
 586         kfree(link);
 587 }
 588
 589
 590 #define CS_CHECK(fn, ret) \
 591 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 592
 593 #define CFG_CHECK2(fn, retf) \
 594 do { int ret = (retf); \
 595 if (ret != 0) { \
 596         PDEBUG(DEBUG_EXTRA, "CardServices(" #fn ") returned %d\n", ret); \
 597         cs_error(link->handle, fn, ret); \
 598         goto next_entry; \
 599 } \
 600 } while (0)
 601
 602
 603 /* run after a CARD_INSERTION event is received to configure the PCMCIA
 604  * socket and make the device available to the system */
 605 static int prism2_config(dev_link_t *link)
 606 {
 607         struct net_device *dev;
 608         struct hostap_interface *iface;
 609         local_info_t *local;
 610         int ret = 1;
 611         tuple_t tuple;
 612         cisparse_t *parse;
 613         int last_fn, last_ret;
 614         u_char buf[64];
 615         config_info_t conf;
 616         cistpl_cftable_entry_t dflt = { 0 };
 617
 618         PDEBUG(DEBUG_FLOW, "prism2_config()\n");
 619
 620         parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
 621         if (parse == NULL) {
 622                 ret = -ENOMEM;
 623                 goto failed;
 624         }
 625
 626         tuple.DesiredTuple = CISTPL_CONFIG;
 627         tuple.Attributes = 0;
 628         tuple.TupleData = buf;
 629         tuple.TupleDataMax = sizeof(buf);
 630         tuple.TupleOffset = 0;
 631         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
 632         CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link->handle, &tuple));
 633         CS_CHECK(ParseTuple, pcmcia_parse_tuple(link->handle, &tuple, parse));
 634         link->conf.ConfigBase = parse->config.base;
 635         link->conf.Present = parse->config.rmask[0];
 636
 637         CS_CHECK(GetConfigurationInfo,
 638                  pcmcia_get_configuration_info(link->handle, &conf));
 639         PDEBUG(DEBUG_HW, "%s: %s Vcc=%d (from config)\n", dev_info,
 640                ignore_cis_vcc ? "ignoring" : "setting", conf.Vcc);
 641         link->conf.Vcc = conf.Vcc;
 642
 643         /* Look for an appropriate configuration table entry in the CIS */
 644         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 645         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
 646         for (;;) {
 647                 cistpl_cftable_entry_t *cfg = &(parse->cftable_entry);
 648                 CFG_CHECK2(GetTupleData,
 649                            pcmcia_get_tuple_data(link->handle, &tuple));
 650                 CFG_CHECK2(ParseTuple,
 651                            pcmcia_parse_tuple(link->handle, &tuple, parse));
 652
 653                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 654                         dflt = *cfg;
 655                 if (cfg->index == 0)
 656                         goto next_entry;
 657                 link->conf.ConfigIndex = cfg->index;
 658                 PDEBUG(DEBUG_EXTRA, "Checking CFTABLE_ENTRY 0x%02X "
 659                        "(default 0x%02X)\n", cfg->index, dflt.index);
 660
 661                 /* Does this card need audio output? */
 662                 if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
 663                         link->conf.Attributes |= CONF_ENABLE_SPKR;
 664                         link->conf.Status = CCSR_AUDIO_ENA;
 665                 }
 666
 667                 /* Use power settings for Vcc and Vpp if present */
 668                 /*  Note that the CIS values need to be rescaled */
 669                 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 670                         if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] /
 671                             10000 && !ignore_cis_vcc) {
 672                                 PDEBUG(DEBUG_EXTRA, "  Vcc mismatch - skipping"
 673                                        " this entry\n");
 674                                 goto next_entry;
 675                         }
 676                 } else if (dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
 677                         if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM] /
 678                             10000 && !ignore_cis_vcc) {
 679                                 PDEBUG(DEBUG_EXTRA, "  Vcc (default) mismatch "
 680                                        "- skipping this entry\n");
 681                                 goto next_entry;
 682                         }
 683                 }
 684
 685                 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 686                         link->conf.Vpp1 = link->conf.Vpp2 =
 687                                 cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 688                 else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
 689                         link->conf.Vpp1 = link->conf.Vpp2 =
 690                                 dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
 691
 692                 /* Do we need to allocate an interrupt? */
 693                 if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
 694                         link->conf.Attributes |= CONF_ENABLE_IRQ;
 695                 else if (!(link->conf.Attributes & CONF_ENABLE_IRQ)) {
 696                         /* At least Compaq WL200 does not have IRQInfo1 set,
 697                          * but it does not work without interrupts.. */
 698                         printk("Config has no IRQ info, but trying to enable "
 699                                "IRQ anyway..\n");
 700                         link->conf.Attributes |= CONF_ENABLE_IRQ;
 701                 }
 702
 703                 /* IO window settings */
 704                 PDEBUG(DEBUG_EXTRA, "IO window settings: cfg->io.nwin=%d "
 705                        "dflt.io.nwin=%d\n",
 706                        cfg->io.nwin, dflt.io.nwin);
 707                 link->io.NumPorts1 = link->io.NumPorts2 = 0;
 708                 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
 709                         cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
 710                         link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 711                         PDEBUG(DEBUG_EXTRA, "io->flags = 0x%04X, "
 712                                "io.base=0x%04x, len=%d\n", io->flags,
 713                                io->win[0].base, io->win[0].len);
 714                         if (!(io->flags & CISTPL_IO_8BIT))
 715                                 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
 716                         if (!(io->flags & CISTPL_IO_16BIT))
 717                                 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 718                         link->io.IOAddrLines = io->flags &
 719                                 CISTPL_IO_LINES_MASK;
 720                         link->io.BasePort1 = io->win[0].base;
 721                         link->io.NumPorts1 = io->win[0].len;
 722                         if (io->nwin > 1) {
 723                                 link->io.Attributes2 = link->io.Attributes1;
 724                                 link->io.BasePort2 = io->win[1].base;
 725                                 link->io.NumPorts2 = io->win[1].len;
 726                         }
 727                 }
 728
 729                 /* This reserves IO space but doesn't actually enable it */
 730                 CFG_CHECK2(RequestIO,
 731                            pcmcia_request_io(link->handle, &link->io));
 732
 733                 /* This configuration table entry is OK */
 734                 break;
 735
 736         next_entry:
 737                 CS_CHECK(GetNextTuple,
 738                          pcmcia_get_next_tuple(link->handle, &tuple));
 739         }
 740
 741         /* Need to allocate net_device before requesting IRQ handler */
 742         dev = prism2_init_local_data(&prism2_pccard_funcs, 0);
 743         if (dev == NULL)
 744                 goto failed;
 745         link->priv = dev;
 746
 747         /*
 748          * Allocate an interrupt line.  Note that this does not assign a
 749          * handler to the interrupt, unless the 'Handler' member of the
 750          * irq structure is initialized.
 751          */
 752         if (link->conf.Attributes & CONF_ENABLE_IRQ) {
 753                 int i;
 754                 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
 755                 link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
 756                 if (irq_list[0] == -1)
 757                         link->irq.IRQInfo2 = irq_mask;
 758                 else
 759                         for (i = 0; i < 4; i++)
 760                                 link->irq.IRQInfo2 |= 1 << irq_list[i];
 761                 link->irq.Handler = prism2_interrupt;
 762                 link->irq.Instance = dev;
 763                 CS_CHECK(RequestIRQ,
 764                          pcmcia_request_irq(link->handle, &link->irq));
 765         }
 766
 767         /*
 768          * This actually configures the PCMCIA socket -- setting up
 769          * the I/O windows and the interrupt mapping, and putting the
 770          * card and host interface into "Memory and IO" mode.
 771          */
 772         CS_CHECK(RequestConfiguration,
 773                  pcmcia_request_configuration(link->handle, &link->conf));
 774
 775         dev->irq = link->irq.AssignedIRQ;
 776         dev->base_addr = link->io.BasePort1;
 777
 778         /* Finally, report what we've done */
 779         printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d",
 780                dev_info, link->conf.ConfigIndex,
 781                link->conf.Vcc / 10, link->conf.Vcc % 10);
 782         if (link->conf.Vpp1)
 783                 printk(", Vpp %d.%d", link->conf.Vpp1 / 10,
 784                        link->conf.Vpp1 % 10);
 785         if (link->conf.Attributes & CONF_ENABLE_IRQ)
 786                 printk(", irq %d", link->irq.AssignedIRQ);
 787         if (link->io.NumPorts1)
 788                 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
 789                        link->io.BasePort1+link->io.NumPorts1-1);
 790         if (link->io.NumPorts2)
 791                 printk(" & 0x%04x-0x%04x", link->io.BasePort2,
 792                        link->io.BasePort2+link->io.NumPorts2-1);
 793         printk("\n");
 794
 795         link->state |= DEV_CONFIG;
 796         link->state &= ~DEV_CONFIG_PENDING;
 797
 798         iface = netdev_priv(dev);
 799         local = iface->local;
 800         local->link = link;
 801         strcpy(local->node.dev_name, dev->name);
 802         link->dev = &local->node;
 803
 804         local->shutdown = 0;
 805
 806         sandisk_enable_wireless(dev);
 807
 808         ret = prism2_hw_config(dev, 1);
 809         if (!ret) {
 810                 ret = hostap_hw_ready(dev);
 811                 if (ret == 0 && local->ddev)
 812                         strcpy(local->node.dev_name, local->ddev->name);
 813         }
 814         kfree(parse);
 815         return ret;
 816
 817  cs_failed:
 818         cs_error(link->handle, last_fn, last_ret);
 819
 820  failed:
 821         kfree(parse);
 822         prism2_release((u_long)link);
 823         return ret;
 824 }
 825
 826
 827 static void prism2_release(u_long arg)
 828 {
 829         dev_link_t *link = (dev_link_t *)arg;
 830
 831         PDEBUG(DEBUG_FLOW, "prism2_release\n");
 832
 833         if (link->priv) {
 834                 struct net_device *dev = link->priv;
 835                 struct hostap_interface *iface;
 836
 837                 iface = netdev_priv(dev);
 838                 if (link->state & DEV_CONFIG)
 839                         prism2_hw_shutdown(dev, 0);
 840                 iface->local->shutdown = 1;
 841         }
 842
 843         if (link->win)
 844                 pcmcia_release_window(link->win);
 845         pcmcia_release_configuration(link->handle);
 846         if (link->io.NumPorts1)
 847                 pcmcia_release_io(link->handle, &link->io);
 848         if (link->irq.AssignedIRQ)
 849                 pcmcia_release_irq(link->handle, &link->irq);
 850
 851         link->state &= ~DEV_CONFIG;
 852
 853         PDEBUG(DEBUG_FLOW, "release - done\n");
 854 }
 855
 856
 857 static int prism2_event(event_t event, int priority,
 858                         event_callback_args_t *args)
 859 {
 860         dev_link_t *link = args->client_data;
 861         struct net_device *dev = (struct net_device *) link->priv;
 862
 863         switch (event) {
 864         case CS_EVENT_CARD_INSERTION:
 865                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_INSERTION\n", dev_info);
 866                 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 867                 if (prism2_config(link)) {
 868                         PDEBUG(DEBUG_EXTRA, "prism2_config() failed\n");
 869                 }
 870                 break;
 871
 872         case CS_EVENT_CARD_REMOVAL:
 873                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_REMOVAL\n", dev_info);
 874                 link->state &= ~DEV_PRESENT;
 875                 if (link->state & DEV_CONFIG) {
 876                         netif_stop_queue(dev);
 877                         netif_device_detach(dev);
 878                         prism2_release((u_long) link);
 879                 }
 880                 break;
 881
 882         case CS_EVENT_PM_SUSPEND:
 883                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_SUSPEND\n", dev_info);
 884                 link->state |= DEV_SUSPEND;
 885                 /* fall through */
 886
 887         case CS_EVENT_RESET_PHYSICAL:
 888                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_RESET_PHYSICAL\n", dev_info);
 889                 if (link->state & DEV_CONFIG) {
 890                         if (link->open) {
 891                                 netif_stop_queue(dev);
 892                                 netif_device_detach(dev);
 893                         }
 894                         prism2_suspend(dev);
 895                         pcmcia_release_configuration(link->handle);
 896                 }
 897                 break;
 898
 899         case CS_EVENT_PM_RESUME:
 900                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_RESUME\n", dev_info);
 901                 link->state &= ~DEV_SUSPEND;
 902                 /* fall through */
 903
 904         case CS_EVENT_CARD_RESET:
 905                 PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_RESET\n", dev_info);
 906                 if (link->state & DEV_CONFIG) {
 907                         pcmcia_request_configuration(link->handle,
 908                                                      &link->conf);
 909                         prism2_hw_shutdown(dev, 1);
 910                         prism2_hw_config(dev, link->open ? 0 : 1);
 911                         if (link->open) {
 912                                 netif_device_attach(dev);
 913                                 netif_start_queue(dev);
 914                         }
 915                 }
 916                 break;
 917
 918         default:
 919                 PDEBUG(DEBUG_EXTRA, "%s: prism2_event() - unknown event %d\n",
 920                        dev_info, event);
 921                 break;
 922         }
 923         return 0;
 924 }
 925
 926
 927 static struct pcmcia_driver hostap_driver = {
 928         .drv            = {
 929                 .name   = "hostap_cs",
 930         },
 931         .attach         = prism2_attach,
 932         .detach         = prism2_detach,
 933         .owner          = THIS_MODULE,
 934 };
 935
 936 static int __init init_prism2_pccard(void)
 937 {
 938         printk(KERN_INFO "%s: %s\n", dev_info, version);
 939         return pcmcia_register_driver(&hostap_driver);
 940 }
 941
 942 static void __exit exit_prism2_pccard(void)
 943 {
 944         pcmcia_unregister_driver(&hostap_driver);
 945         printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
 946 }
 947
 948
 949 module_init(init_prism2_pccard);
 950 module_exit(exit_prism2_pccard);