release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/wlags49_h2/wl_cs.c

   1 /*******************************************************************************
   2  * Agere Systems Inc.
   3  * Wireless device driver for Linux (wlags49).
   4  *
   5  * Copyright (c) 1998-2003 Agere Systems Inc.
   6  * All rights reserved.
   7  *   http://www.agere.com
   8  *
   9  * Initially developed by TriplePoint, Inc.
  10  *   http://www.triplepoint.com
  11  *
  12  *------------------------------------------------------------------------------
  13  *
  14  *   This file contains processing and initialization specific to Card Services
  15  *   devices (PCMCIA, CF).
  16  *
  17  *------------------------------------------------------------------------------
  18  *
  19  * SOFTWARE LICENSE
  20  *
  21  * This software is provided subject to the following terms and conditions,
  22  * which you should read carefully before using the software.  Using this
  23  * software indicates your acceptance of these terms and conditions.  If you do
  24  * not agree with these terms and conditions, do not use the software.
  25  *
  26  * Copyright (c) 2003 Agere Systems Inc.
  27  * All rights reserved.
  28  *
  29  * Redistribution and use in source or binary forms, with or without
  30  * modifications, are permitted provided that the following conditions are met:
  31  *
  32  * . Redistributions of source code must retain the above copyright notice, this
  33  *    list of conditions and the following Disclaimer as comments in the code as
  34  *    well as in the documentation and/or other materials provided with the
  35  *    distribution.
  36  *
  37  * . Redistributions in binary form must reproduce the above copyright notice,
  38  *    this list of conditions and the following Disclaimer in the documentation
  39  *    and/or other materials provided with the distribution.
  40  *
  41  * . Neither the name of Agere Systems Inc. nor the names of the contributors
  42  *    may be used to endorse or promote products derived from this software
  43  *    without specific prior written permission.
  44  *
  45  * Disclaimer
  46  *
  47  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  48  * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
  49  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  ANY
  50  * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
  51  * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
  52  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  53  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  54  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  55  * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  57  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  58  * DAMAGE.
  59  *
  60  ******************************************************************************/
  61
  62 /*******************************************************************************
  63  *  include files
  64  ******************************************************************************/
  65 #include <wl_version.h>
  66
  67 #include <linux/kernel.h>
  68 #include <linux/sched.h>
  69 #include <linux/ptrace.h>
  70 #include <linux/ctype.h>
  71 #include <linux/string.h>
  72 #include <linux/timer.h>
  73 #include <linux/interrupt.h>
  74 #include <linux/in.h>
  75 #include <linux/delay.h>
  76 #include <asm/io.h>
  77 #include <asm/system.h>
  78 #include <asm/bitops.h>
  79
  80 #include <linux/netdevice.h>
  81 #include <linux/etherdevice.h>
  82 #include <linux/skbuff.h>
  83 #include <linux/if_arp.h>
  84 #include <linux/ioport.h>
  85
  86 #include <pcmcia/cs.h>
  87 #include <pcmcia/cistpl.h>
  88 #include <pcmcia/cisreg.h>
  89 #include <pcmcia/ciscode.h>
  90 #include <pcmcia/ds.h>
  91 #include <debug.h>
  92
  93 #include <hcf.h>
  94 #include <dhf.h>
  95 #include <hcfdef.h>
  96
  97 #include <wl_if.h>
  98 #include <wl_internal.h>
  99 #include <wl_util.h>
 100 #include <wl_main.h>
 101 #include <wl_netdev.h>
 102 #include <wl_cs.h>
 103 #include <wl_sysfs.h>
 104
 105
 106 /*******************************************************************************
 107  *  global definitions
 108  ******************************************************************************/
 109 #if DBG
 110 extern dbg_info_t *DbgInfo;
 111 #endif  /* DBG */
 112
 113
 114 /*******************************************************************************
 115  *      wl_adapter_attach()
 116  *******************************************************************************
 117  *
 118  *  DESCRIPTION:
 119  *
 120  *      Creates an instance of the driver, allocating local data structures for
 121  *  one device. The device is registered with Card Services.
 122  *
 123  *  PARAMETERS:
 124  *
 125  *      none
 126  *
 127  *  RETURNS:
 128  *
 129  *      pointer to an allocated dev_link_t structure
 130  *      NULL on failure
 131  *
 132  ******************************************************************************/
 133 static int wl_adapter_attach(struct pcmcia_device *link)
 134 {
 135         struct net_device   *dev;
 136         struct wl_private   *lp;
 137         /*--------------------------------------------------------------------*/
 138
 139         DBG_FUNC("wl_adapter_attach");
 140         DBG_ENTER(DbgInfo);
 141
 142         dev = wl_device_alloc();
 143         if (dev == NULL) {
 144                 DBG_ERROR(DbgInfo, "wl_device_alloc returned NULL\n");
 145                 return -ENOMEM;
 146         }
 147
 148         link->resource[0]->end  = HCF_NUM_IO_PORTS;
 149         link->resource[0]->flags= IO_DATA_PATH_WIDTH_16;
 150         link->conf.Attributes   = CONF_ENABLE_IRQ;
 151         link->conf.IntType      = INT_MEMORY_AND_IO;
 152         link->conf.ConfigIndex  = 5;
 153         link->conf.Present      = PRESENT_OPTION;
 154
 155         link->priv = dev;
 156         lp = wl_priv(dev);
 157         lp->link = link;
 158
 159         wl_adapter_insert(link);
 160
 161         DBG_LEAVE(DbgInfo);
 162         return 0;
 163 } /* wl_adapter_attach */
 164 /*============================================================================*/
 165
 166
 167
 168 /*******************************************************************************
 169  *      wl_adapter_detach()
 170  *******************************************************************************
 171  *
 172  *  DESCRIPTION:
 173  *
 174  *      This deletes a driver "instance". The device is de-registered with Card
 175  *  Services. If it has been released, then the net device is unregistered, and
 176  *  all local data structures are freed. Otherwise, the structures will be
 177  *  freed when the device is released.
 178  *
 179  *  PARAMETERS:
 180  *
 181  *      link    - pointer to the dev_link_t structure representing the device to
 182  *                detach
 183  *
 184  *  RETURNS:
 185  *
 186  *      N/A
 187  *
 188  ******************************************************************************/
 189 static void wl_adapter_detach(struct pcmcia_device *link)
 190 {
 191         struct net_device   *dev = link->priv;
 192         /*--------------------------------------------------------------------*/
 193
 194         DBG_FUNC("wl_adapter_detach");
 195         DBG_ENTER(DbgInfo);
 196         DBG_PARAM(DbgInfo, "link", "0x%p", link);
 197
 198         wl_adapter_release(link);
 199
 200         if (dev) {
 201                 unregister_wlags_sysfs(dev);
 202                 unregister_netdev(dev);
 203         }
 204
 205         wl_device_dealloc(dev);
 206
 207         DBG_LEAVE(DbgInfo);
 208 } /* wl_adapter_detach */
 209 /*============================================================================*/
 210
 211
 212 /*******************************************************************************
 213  *      wl_adapter_release()
 214  *******************************************************************************
 215  *
 216  *  DESCRIPTION:
 217  *
 218  *      After a card is removed, this routine will release the PCMCIA
 219  *  configuration. If the device is still open, this will be postponed until it
 220  *  is closed.
 221  *
 222  *  PARAMETERS:
 223  *
 224  *      arg - a u_long representing a pointer to a dev_link_t structure for the
 225  *            device to be released.
 226  *
 227  *  RETURNS:
 228  *
 229  *      N/A
 230  *
 231  ******************************************************************************/
 232 void wl_adapter_release(struct pcmcia_device *link)
 233 {
 234         DBG_FUNC("wl_adapter_release");
 235         DBG_ENTER(DbgInfo);
 236         DBG_PARAM(DbgInfo, "link", "0x%p", link);
 237
 238         /* Stop hardware */
 239         wl_remove(link->priv);
 240
 241         pcmcia_disable_device(link);
 242
 243         DBG_LEAVE(DbgInfo);
 244 } /* wl_adapter_release */
 245 /*============================================================================*/
 246
 247 static int wl_adapter_suspend(struct pcmcia_device *link)
 248 {
 249         struct net_device *dev = link->priv;
 250
 251         /* if (link->open) { */
 252         netif_device_detach(dev);
 253         wl_suspend(dev);
 254         /* CHECK! pcmcia_release_configuration(link->handle); */
 255         /* } */
 256
 257         return 0;
 258 } /* wl_adapter_suspend */
 259
 260 static int wl_adapter_resume(struct pcmcia_device *link)
 261 {
 262         struct net_device *dev = link->priv;
 263
 264         wl_resume(dev);
 265
 266         netif_device_attach(dev);
 267
 268         return 0;
 269 } /* wl_adapter_resume */
 270
 271 /*******************************************************************************
 272  *      wl_adapter_insert()
 273  *******************************************************************************
 274  *
 275  *  DESCRIPTION:
 276  *
 277  *      wl_adapter_insert() is scheduled to run after a CARD_INSERTION event is
 278  *  received, to configure the PCMCIA socket, and to make the ethernet device
 279  *  available to the system.
 280  *
 281  *  PARAMETERS:
 282  *
 283  *      link    - pointer to the dev_link_t structure representing the device to
 284  *                insert
 285  *
 286  *  RETURNS:
 287  *
 288  *      N/A
 289  *
 290  ******************************************************************************/
 291 void wl_adapter_insert(struct pcmcia_device *link)
 292 {
 293         struct net_device *dev;
 294         int i;
 295         int ret;
 296         /*--------------------------------------------------------------------*/
 297
 298         DBG_FUNC("wl_adapter_insert");
 299         DBG_ENTER(DbgInfo);
 300         DBG_PARAM(DbgInfo, "link", "0x%p", link);
 301
 302         dev     = link->priv;
 303
 304         /* Do we need to allocate an interrupt? */
 305         link->conf.Attributes |= CONF_ENABLE_IRQ;
 306         link->io_lines = 6;
 307
 308         ret = pcmcia_request_io(link);
 309         if (ret != 0)
 310                 goto failed;
 311
 312         ret = pcmcia_request_irq(link, (void *) wl_isr);
 313         if (ret != 0)
 314                 goto failed;
 315
 316         ret = pcmcia_request_configuration(link, &link->conf);
 317         if (ret != 0)
 318                 goto failed;
 319
 320         dev->irq        = link->irq;
 321         dev->base_addr  = link->resource[0]->start;
 322
 323         SET_NETDEV_DEV(dev, &link->dev);
 324         if (register_netdev(dev) != 0) {
 325                 printk("%s: register_netdev() failed\n", MODULE_NAME);
 326                 goto failed;
 327         }
 328
 329         register_wlags_sysfs(dev);
 330
 331         printk(KERN_INFO "%s: Wireless, io_addr %#03lx, irq %d, ""mac_address ",
 332                 dev->name, dev->base_addr, dev->irq);
 333         for (i = 0; i < ETH_ALEN; i++)
 334                 printk("%02X%c", dev->dev_addr[i], ((i < (ETH_ALEN-1)) ? ':' : '\n'));
 335
 336         DBG_LEAVE(DbgInfo);
 337         return;
 338
 339 failed:
 340         wl_adapter_release(link);
 341
 342         DBG_LEAVE(DbgInfo);
 343         return;
 344 } /* wl_adapter_insert */
 345 /*============================================================================*/
 346
 347
 348 /*******************************************************************************
 349  *      wl_adapter_open()
 350  *******************************************************************************
 351  *
 352  *  DESCRIPTION:
 353  *
 354  *      Open the device.
 355  *
 356  *  PARAMETERS:
 357  *
 358  *      dev - a pointer to a net_device structure representing the network
 359  *            device to open.
 360  *
 361  *  RETURNS:
 362  *
 363  *      0 on success
 364  *      errno value otherwise
 365  *
 366  ******************************************************************************/
 367 int wl_adapter_open(struct net_device *dev)
 368 {
 369         struct wl_private *lp = wl_priv(dev);
 370         struct pcmcia_device *link = lp->link;
 371         int result = 0;
 372         int hcf_status = HCF_SUCCESS;
 373         /*--------------------------------------------------------------------*/
 374
 375         DBG_FUNC("wl_adapter_open");
 376         DBG_ENTER(DbgInfo);
 377         DBG_PRINT("%s\n", VERSION_INFO);
 378         DBG_PARAM(DbgInfo, "dev", "%s (0x%p)", dev->name, dev);
 379
 380         if (!pcmcia_dev_present(link)) {
 381                 DBG_LEAVE(DbgInfo);
 382                 return -ENODEV;
 383         }
 384
 385         link->open++;
 386
 387         hcf_status = wl_open(dev);
 388
 389         if (hcf_status != HCF_SUCCESS) {
 390                 link->open--;
 391                 result = -ENODEV;
 392         }
 393
 394         DBG_LEAVE(DbgInfo);
 395         return result;
 396 } /* wl_adapter_open */
 397 /*============================================================================*/
 398
 399
 400 /*******************************************************************************
 401  *      wl_adapter_close()
 402  *******************************************************************************
 403  *
 404  *  DESCRIPTION:
 405  *
 406  *      Close the device.
 407  *
 408  *  PARAMETERS:
 409  *
 410  *      dev - a pointer to a net_device structure representing the network
 411  *            device to close.
 412  *
 413  *  RETURNS:
 414  *
 415  *      0 on success
 416  *      errno value otherwise
 417  *
 418  ******************************************************************************/
 419 int wl_adapter_close(struct net_device *dev)
 420 {
 421         struct wl_private *lp = wl_priv(dev);
 422         struct pcmcia_device *link = lp->link;
 423         /*--------------------------------------------------------------------*/
 424
 425         DBG_FUNC("wl_adapter_close");
 426         DBG_ENTER(DbgInfo);
 427         DBG_PARAM(DbgInfo, "dev", "%s (0x%p)", dev->name, dev);
 428
 429         if (link == NULL) {
 430                 DBG_LEAVE(DbgInfo);
 431                 return -ENODEV;
 432         }
 433
 434         DBG_TRACE(DbgInfo, "%s: Shutting down adapter.\n", dev->name);
 435         wl_close(dev);
 436
 437         link->open--;
 438
 439         DBG_LEAVE(DbgInfo);
 440         return 0;
 441 } /* wl_adapter_close */
 442 /*============================================================================*/
 443
 444 static struct pcmcia_device_id wl_adapter_ids[] = {
 445 #if !((HCF_TYPE) & HCF_TYPE_HII5)
 446         PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0003),
 447         PCMCIA_DEVICE_PROD_ID12("Agere Systems", "Wireless PC Card Model 0110",
 448                                 0x33103a9b, 0xe175b0dd),
 449 #else
 450         PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0004),
 451         PCMCIA_DEVICE_PROD_ID12("Linksys", "WCF54G_Wireless-G_CompactFlash_Card",
 452                                 0x0733cc81, 0x98a599e1),
 453 #endif  /* (HCF_TYPE) & HCF_TYPE_HII5 */
 454         PCMCIA_DEVICE_NULL,
 455 };
 456 MODULE_DEVICE_TABLE(pcmcia, wl_adapter_ids);
 457
 458 static struct pcmcia_driver wlags49_driver = {
 459         .owner      = THIS_MODULE,
 460         .drv        = {
 461                 .name = DRIVER_NAME,
 462         },
 463         .probe      = wl_adapter_attach,
 464         .remove     = wl_adapter_detach,
 465         .id_table   = wl_adapter_ids,
 466         .suspend    = wl_adapter_suspend,
 467         .resume     = wl_adapter_resume,
 468 };
 469
 470
 471
 472 /*******************************************************************************
 473  *      wl_adapter_init_module()
 474  *******************************************************************************
 475  *
 476  *  DESCRIPTION:
 477  *
 478  *      Called by init_module() to perform PCMCIA driver initialization.
 479  *
 480  *  PARAMETERS:
 481  *
 482  *      N/A
 483  *
 484  *  RETURNS:
 485  *
 486  *      0 on success
 487  *      -1 on error
 488  *
 489  ******************************************************************************/
 490 int wl_adapter_init_module(void)
 491 {
 492         int ret;
 493         /*--------------------------------------------------------------------*/
 494
 495         DBG_FUNC("wl_adapter_init_module");
 496         DBG_ENTER(DbgInfo);
 497         DBG_TRACE(DbgInfo, "wl_adapter_init_module() -- PCMCIA\n");
 498
 499         ret = pcmcia_register_driver(&wlags49_driver);
 500
 501         DBG_LEAVE(DbgInfo);
 502         return ret;
 503 } /* wl_adapter_init_module */
 504 /*============================================================================*/
 505
 506
 507 /*******************************************************************************
 508  *      wl_adapter_cleanup_module()
 509  *******************************************************************************
 510  *
 511  *  DESCRIPTION:
 512  *
 513  *      Called by cleanup_module() to perform driver uninitialization.
 514  *
 515  *  PARAMETERS:
 516  *
 517  *      N/A
 518  *
 519  *  RETURNS:
 520  *
 521  *      N/A
 522  *
 523  ******************************************************************************/
 524 void wl_adapter_cleanup_module(void)
 525 {
 526         DBG_FUNC("wl_adapter_cleanup_module");
 527         DBG_ENTER(DbgInfo);
 528         DBG_TRACE(DbgInfo, "wl_adapter_cleanup_module() -- PCMCIA\n");
 529
 530
 531         pcmcia_unregister_driver(&wlags49_driver);
 532
 533         DBG_LEAVE(DbgInfo);
 534         return;
 535 } /* wl_adapter_cleanup_module */
 536 /*============================================================================*/
 537
 538
 539 /*******************************************************************************
 540  *      wl_adapter_is_open()
 541  *******************************************************************************
 542  *
 543  *  DESCRIPTION:
 544  *
 545  *      Check with Card Services to determine if this device is open.
 546  *
 547  *  PARAMETERS:
 548  *
 549  *      dev - a pointer to the net_device structure whose open status will be
 550  *            checked
 551  *
 552  *  RETURNS:
 553  *
 554  *      nonzero if device is open
 555  *      0 otherwise
 556  *
 557  ******************************************************************************/
 558 int wl_adapter_is_open(struct net_device *dev)
 559 {
 560         struct wl_private *lp = wl_priv(dev);
 561         struct pcmcia_device *link = lp->link;
 562
 563         if (!pcmcia_dev_present(link))
 564                 return 0;
 565
 566         return link->open;
 567 } /* wl_adapter_is_open */
 568 /*============================================================================*/
 569
 570
 571 #if DBG
 572
 573 /*******************************************************************************
 574  *      DbgEvent()
 575  *******************************************************************************
 576  *
 577  *  DESCRIPTION:
 578  *
 579  *      Converts the card serivces events to text for debugging.
 580  *
 581  *  PARAMETERS:
 582  *
 583  *      mask    - a integer representing the error(s) being reported by Card
 584  *                Services.
 585  *
 586  *  RETURNS:
 587  *
 588  *      a pointer to a string describing the error(s)
 589  *
 590  ******************************************************************************/
 591 const char *DbgEvent(int mask)
 592 {
 593         static char DbgBuffer[256];
 594         char *pBuf;
 595         /*--------------------------------------------------------------------*/
 596
 597         pBuf    = DbgBuffer;
 598         *pBuf   = '\0';
 599
 600
 601         if (mask & CS_EVENT_WRITE_PROTECT)
 602                 strcat(pBuf, "WRITE_PROTECT ");
 603
 604         if (mask & CS_EVENT_CARD_LOCK)
 605                 strcat(pBuf, "CARD_LOCK ");
 606
 607         if (mask & CS_EVENT_CARD_INSERTION)
 608                 strcat(pBuf, "CARD_INSERTION ");
 609
 610         if (mask & CS_EVENT_CARD_REMOVAL)
 611                 strcat(pBuf, "CARD_REMOVAL ");
 612
 613         if (mask & CS_EVENT_BATTERY_DEAD)
 614                 strcat(pBuf, "BATTERY_DEAD ");
 615
 616         if (mask & CS_EVENT_BATTERY_LOW)
 617                 strcat(pBuf, "BATTERY_LOW ");
 618
 619         if (mask & CS_EVENT_READY_CHANGE)
 620                 strcat(pBuf, "READY_CHANGE ");
 621
 622         if (mask & CS_EVENT_CARD_DETECT)
 623                 strcat(pBuf, "CARD_DETECT ");
 624
 625         if (mask & CS_EVENT_RESET_REQUEST)
 626                 strcat(pBuf, "RESET_REQUEST ");
 627
 628         if (mask & CS_EVENT_RESET_PHYSICAL)
 629                 strcat(pBuf, "RESET_PHYSICAL ");
 630
 631         if (mask & CS_EVENT_CARD_RESET)
 632                 strcat(pBuf, "CARD_RESET ");
 633
 634         if (mask & CS_EVENT_REGISTRATION_COMPLETE)
 635                 strcat(pBuf, "REGISTRATION_COMPLETE ");
 636
 637         /* if (mask & CS_EVENT_RESET_COMPLETE)
 638                 strcat(pBuf, "RESET_COMPLETE "); */
 639
 640         if (mask & CS_EVENT_PM_SUSPEND)
 641                 strcat(pBuf, "PM_SUSPEND ");
 642
 643         if (mask & CS_EVENT_PM_RESUME)
 644                 strcat(pBuf, "PM_RESUME ");
 645
 646         if (mask & CS_EVENT_INSERTION_REQUEST)
 647                 strcat(pBuf, "INSERTION_REQUEST ");
 648
 649         if (mask & CS_EVENT_EJECTION_REQUEST)
 650                 strcat(pBuf, "EJECTION_REQUEST ");
 651
 652         if (mask & CS_EVENT_MTD_REQUEST)
 653                 strcat(pBuf, "MTD_REQUEST ");
 654
 655         if (mask & CS_EVENT_ERASE_COMPLETE)
 656                 strcat(pBuf, "ERASE_COMPLETE ");
 657
 658         if (mask & CS_EVENT_REQUEST_ATTENTION)
 659                 strcat(pBuf, "REQUEST_ATTENTION ");
 660
 661         if (mask & CS_EVENT_CB_DETECT)
 662                 strcat(pBuf, "CB_DETECT ");
 663
 664         if (mask & CS_EVENT_3VCARD)
 665                 strcat(pBuf, "3VCARD ");
 666
 667         if (mask & CS_EVENT_XVCARD)
 668                 strcat(pBuf, "XVCARD ");
 669
 670
 671         if (*pBuf) {
 672                 pBuf[strlen(pBuf) - 1] = '\0';
 673         } else {
 674                 if (mask != 0x0)
 675                         sprintf(pBuf, "<<0x%08x>>", mask);
 676         }
 677
 678         return pBuf;
 679 } /* DbgEvent */
 680 /*============================================================================*/
 681
 682 #endif  /* DBG */