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 © 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 \93AS IS\94 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_types.h>
  87 #include <pcmcia/cs.h>
  88 #include <pcmcia/cistpl.h>
  89 #include <pcmcia/cisreg.h>
  90 #include <pcmcia/ciscode.h>
  91 #include <pcmcia/ds.h>
  92 #include <debug.h>
  93
  94 #include <hcf.h>
  95 #include <dhf.h>
  96 #include <hcfdef.h>
  97
  98 #include <wl_if.h>
  99 #include <wl_internal.h>
 100 #include <wl_util.h>
 101 #include <wl_main.h>
 102 #include <wl_netdev.h>
 103 #include <wl_cs.h>
 104 #include <wl_sysfs.h>
 105
 106
 107 /*******************************************************************************
 108  *  global definitions
 109  ******************************************************************************/
 110 #if DBG
 111 extern dbg_info_t *DbgInfo;
 112 #endif  /* DBG */
 113
 114
 115 /*******************************************************************************
 116  *      wl_adapter_attach()
 117  *******************************************************************************
 118  *
 119  *  DESCRIPTION:
 120  *
 121  *      Creates an instance of the driver, allocating local data structures for
 122  *  one device. The device is registered with Card Services.
 123  *
 124  *  PARAMETERS:
 125  *
 126  *      none
 127  *
 128  *  RETURNS:
 129  *
 130  *      pointer to an allocated dev_link_t structure
 131  *      NULL on failure
 132  *
 133  ******************************************************************************/
 134 static int wl_adapter_attach(struct pcmcia_device *link)
 135 {
 136     struct net_device   *dev;
 137     struct wl_private   *lp;
 138     /*------------------------------------------------------------------------*/
 139
 140     DBG_FUNC( "wl_adapter_attach" );
 141     DBG_ENTER( DbgInfo );
 142
 143     dev = wl_device_alloc();
 144     if(dev == NULL) {
 145         DBG_ERROR( DbgInfo, "wl_device_alloc returned NULL\n");
 146         return -ENOMEM;
 147     }
 148
 149     link->io.NumPorts1      = HCF_NUM_IO_PORTS;
 150     link->io.Attributes1    = IO_DATA_PATH_WIDTH_16;
 151     link->io.IOAddrLines    = 6;
 152     link->conf.Attributes   = CONF_ENABLE_IRQ;
 153     link->conf.IntType      = INT_MEMORY_AND_IO;
 154     link->conf.ConfigIndex  = 5;
 155     link->conf.Present      = PRESENT_OPTION;
 156
 157     link->priv = dev;
 158     lp = wl_priv(dev);
 159     lp->link = link;
 160
 161     wl_adapter_insert(link);
 162
 163     DBG_LEAVE( DbgInfo );
 164     return 0;
 165 } // wl_adapter_attach
 166 /*============================================================================*/
 167
 168
 169
 170 /*******************************************************************************
 171  *      wl_adapter_detach()
 172  *******************************************************************************
 173  *
 174  *  DESCRIPTION:
 175  *
 176  *      This deletes a driver "instance". The device is de-registered with Card
 177  *  Services. If it has been released, then the net device is unregistered, and
 178  *  all local data structures are freed. Otherwise, the structures will be
 179  *  freed when the device is released.
 180  *
 181  *  PARAMETERS:
 182  *
 183  *      link    - pointer to the dev_link_t structure representing the device to
 184  *                detach
 185  *
 186  *  RETURNS:
 187  *
 188  *      N/A
 189  *
 190  ******************************************************************************/
 191 static void wl_adapter_detach(struct pcmcia_device *link)
 192 {
 193     struct net_device   *dev = link->priv;
 194     /*------------------------------------------------------------------------*/
 195
 196
 197     DBG_FUNC( "wl_adapter_detach" );
 198     DBG_ENTER( DbgInfo );
 199     DBG_PARAM( DbgInfo, "link", "0x%p", link );
 200
 201     wl_adapter_release(link);
 202
 203     if (dev) {
 204         unregister_wlags_sysfs(dev);
 205         unregister_netdev(dev);
 206     }
 207
 208     wl_device_dealloc(dev);
 209
 210     DBG_LEAVE( DbgInfo );
 211 } // wl_adapter_detach
 212 /*============================================================================*/
 213
 214
 215 /*******************************************************************************
 216  *      wl_adapter_release()
 217  *******************************************************************************
 218  *
 219  *  DESCRIPTION:
 220  *
 221  *      After a card is removed, this routine will release the PCMCIA
 222  *  configuration. If the device is still open, this will be postponed until it
 223  *  is closed.
 224  *
 225  *  PARAMETERS:
 226  *
 227  *      arg - a u_long representing a pointer to a dev_link_t structure for the
 228  *            device to be released.
 229  *
 230  *  RETURNS:
 231  *
 232  *      N/A
 233  *
 234  ******************************************************************************/
 235 void wl_adapter_release( struct pcmcia_device *link )
 236 {
 237     DBG_FUNC( "wl_adapter_release" );
 238     DBG_ENTER( DbgInfo );
 239     DBG_PARAM( DbgInfo, "link", "0x%p", link);
 240
 241     /* Stop hardware */
 242     wl_remove(link->priv);
 243
 244     pcmcia_disable_device(link);
 245
 246     DBG_LEAVE( DbgInfo );
 247 } // wl_adapter_release
 248 /*============================================================================*/
 249
 250 static int wl_adapter_suspend(struct pcmcia_device *link)
 251 {
 252     struct net_device *dev = link->priv;
 253
 254     //if (link->open) {
 255         netif_device_detach(dev);
 256         wl_suspend(dev);
 257 //// CHECK!            pcmcia_release_configuration(link->handle);
 258     //}
 259
 260     return 0;
 261 } // wl_adapter_suspend
 262
 263 static int wl_adapter_resume(struct pcmcia_device *link)
 264 {
 265         struct net_device *dev = link->priv;
 266
 267         wl_resume(dev);
 268
 269         netif_device_attach( dev );
 270
 271         return 0;
 272 } // wl_adapter_resume
 273
 274 /*******************************************************************************
 275  *      wl_adapter_insert()
 276  *******************************************************************************
 277  *
 278  *  DESCRIPTION:
 279  *
 280  *      wl_adapter_insert() is scheduled to run after a CARD_INSERTION event is
 281  *  received, to configure the PCMCIA socket, and to make the ethernet device
 282  *  available to the system.
 283  *
 284  *  PARAMETERS:
 285  *
 286  *      link    - pointer to the dev_link_t structure representing the device to
 287  *                insert
 288  *
 289  *  RETURNS:
 290  *
 291  *      N/A
 292  *
 293  ******************************************************************************/
 294 void wl_adapter_insert( struct pcmcia_device *link )
 295 {
 296     struct net_device       *dev;
 297     int i;
 298     int                     ret;
 299     /*------------------------------------------------------------------------*/
 300
 301     DBG_FUNC( "wl_adapter_insert" );
 302     DBG_ENTER( DbgInfo );
 303     DBG_PARAM( DbgInfo, "link", "0x%p", link );
 304
 305     dev     = link->priv;
 306
 307     /* Do we need to allocate an interrupt? */
 308     link->conf.Attributes |= CONF_ENABLE_IRQ;
 309
 310     ret = pcmcia_request_io(link, &link->io);
 311     if (ret != 0)
 312         goto failed;
 313
 314     ret = pcmcia_request_irq(link, (void *) wl_isr);
 315     if (ret != 0)
 316         goto failed;
 317
 318     ret = pcmcia_request_configuration(link, &link->conf);
 319     if (ret != 0)
 320         goto failed;
 321
 322     dev->irq        = link->irq;
 323     dev->base_addr  = link->io.BasePort1;
 324
 325     SET_NETDEV_DEV(dev, &link->dev);
 326     if (register_netdev(dev) != 0) {
 327         printk("%s: register_netdev() failed\n", MODULE_NAME);
 328         goto failed;
 329     }
 330
 331     register_wlags_sysfs(dev);
 332
 333     printk(KERN_INFO "%s: Wireless, io_addr %#03lx, irq %d, ""mac_address ",
 334                dev->name, dev->base_addr, dev->irq);
 335     for( i = 0; i < ETH_ALEN; i++ ) {
 336         printk("%02X%c", dev->dev_addr[i], ((i < (ETH_ALEN-1)) ? ':' : '\n'));
 337     }
 338
 339     DBG_LEAVE( DbgInfo );
 340     return;
 341
 342 failed:
 343     wl_adapter_release( link );
 344
 345     DBG_LEAVE(DbgInfo);
 346     return;
 347 } // wl_adapter_insert
 348 /*============================================================================*/
 349
 350
 351 /*******************************************************************************
 352  *      wl_adapter_open()
 353  *******************************************************************************
 354  *
 355  *  DESCRIPTION:
 356  *
 357  *      Open the device.
 358  *
 359  *  PARAMETERS:
 360  *
 361  *      dev - a pointer to a net_device structure representing the network
 362  *            device to open.
 363  *
 364  *  RETURNS:
 365  *
 366  *      0 on success
 367  *      errno value otherwise
 368  *
 369  ******************************************************************************/
 370 int wl_adapter_open( struct net_device *dev )
 371 {
 372     struct wl_private *lp = wl_priv(dev);
 373     struct pcmcia_device *link = lp->link;
 374     int         result = 0;
 375     int         hcf_status = HCF_SUCCESS;
 376     /*------------------------------------------------------------------------*/
 377
 378
 379     DBG_FUNC( "wl_adapter_open" );
 380     DBG_ENTER( DbgInfo );
 381         DBG_PRINT( "%s\n", VERSION_INFO );
 382     DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev );
 383
 384     if(!pcmcia_dev_present(link))
 385     {
 386         DBG_LEAVE( DbgInfo );
 387         return -ENODEV;
 388     }
 389
 390     link->open++;
 391
 392     hcf_status = wl_open( dev );
 393
 394     if( hcf_status != HCF_SUCCESS ) {
 395         link->open--;
 396         result = -ENODEV;
 397     }
 398
 399     DBG_LEAVE( DbgInfo );
 400     return result;
 401 } // wl_adapter_open
 402 /*============================================================================*/
 403
 404
 405 /*******************************************************************************
 406  *      wl_adapter_close()
 407  *******************************************************************************
 408  *
 409  *  DESCRIPTION:
 410  *
 411  *      Close the device.
 412  *
 413  *  PARAMETERS:
 414  *
 415  *      dev - a pointer to a net_device structure representing the network
 416  *            device to close.
 417  *
 418  *  RETURNS:
 419  *
 420  *      0 on success
 421  *      errno value otherwise
 422  *
 423  ******************************************************************************/
 424 int wl_adapter_close( struct net_device *dev )
 425 {
 426     struct wl_private *lp = wl_priv(dev);
 427     struct pcmcia_device *link = lp->link;
 428     /*------------------------------------------------------------------------*/
 429
 430
 431     DBG_FUNC( "wl_adapter_close" );
 432     DBG_ENTER( DbgInfo );
 433     DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev );
 434
 435     if( link == NULL ) {
 436         DBG_LEAVE( DbgInfo );
 437         return -ENODEV;
 438     }
 439
 440     DBG_TRACE( DbgInfo, "%s: Shutting down adapter.\n", dev->name );
 441     wl_close( dev );
 442
 443     link->open--;
 444
 445     DBG_LEAVE( DbgInfo );
 446     return 0;
 447 } // wl_adapter_close
 448 /*============================================================================*/
 449
 450 static struct pcmcia_device_id wl_adapter_ids[] = {
 451 #if ! ((HCF_TYPE) & HCF_TYPE_HII5)
 452         PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0003),
 453         PCMCIA_DEVICE_PROD_ID12("Agere Systems", "Wireless PC Card Model 0110",
 454                             0x33103a9b, 0xe175b0dd),
 455 #else
 456         PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0004),
 457         PCMCIA_DEVICE_PROD_ID12("Linksys", "WCF54G_Wireless-G_CompactFlash_Card",
 458                             0x0733cc81, 0x98a599e1),
 459 #endif  // (HCF_TYPE) & HCF_TYPE_HII5
 460         PCMCIA_DEVICE_NULL,
 461         };
 462 MODULE_DEVICE_TABLE(pcmcia, wl_adapter_ids);
 463
 464 static struct pcmcia_driver wlags49_driver = {
 465     .owner          = THIS_MODULE,
 466     .drv            = {
 467         .name   = DRIVER_NAME,
 468     },
 469     .probe      = wl_adapter_attach,
 470     .remove     = wl_adapter_detach,
 471     .id_table   = wl_adapter_ids,
 472     .suspend    = wl_adapter_suspend,
 473     .resume     = wl_adapter_resume,
 474 };
 475
 476
 477
 478 /*******************************************************************************
 479  *      wl_adapter_init_module()
 480  *******************************************************************************
 481  *
 482  *  DESCRIPTION:
 483  *
 484  *      Called by init_module() to perform PCMCIA driver initialization.
 485  *
 486  *  PARAMETERS:
 487  *
 488  *      N/A
 489  *
 490  *  RETURNS:
 491  *
 492  *      0 on success
 493  *      -1 on error
 494  *
 495  ******************************************************************************/
 496 int wl_adapter_init_module( void )
 497 {
 498     int ret;
 499     /*------------------------------------------------------------------------*/
 500
 501
 502     DBG_FUNC( "wl_adapter_init_module" );
 503     DBG_ENTER( DbgInfo );
 504     DBG_TRACE( DbgInfo, "wl_adapter_init_module() -- PCMCIA\n" );
 505
 506     ret = pcmcia_register_driver(&wlags49_driver);
 507
 508     DBG_LEAVE( DbgInfo );
 509     return ret;
 510 } // wl_adapter_init_module
 511 /*============================================================================*/
 512
 513
 514 /*******************************************************************************
 515  *      wl_adapter_cleanup_module()
 516  *******************************************************************************
 517  *
 518  *  DESCRIPTION:
 519  *
 520  *      Called by cleanup_module() to perform driver uninitialization.
 521  *
 522  *  PARAMETERS:
 523  *
 524  *      N/A
 525  *
 526  *  RETURNS:
 527  *
 528  *      N/A
 529  *
 530  ******************************************************************************/
 531 void wl_adapter_cleanup_module( void )
 532 {
 533     DBG_FUNC( "wl_adapter_cleanup_module" );
 534     DBG_ENTER( DbgInfo );
 535     DBG_TRACE( DbgInfo, "wl_adapter_cleanup_module() -- PCMCIA\n" );
 536
 537
 538     pcmcia_unregister_driver(&wlags49_driver);
 539
 540     DBG_LEAVE( DbgInfo );
 541     return;
 542 } // wl_adapter_cleanup_module
 543 /*============================================================================*/
 544
 545
 546 /*******************************************************************************
 547  *      wl_adapter_is_open()
 548  *******************************************************************************
 549  *
 550  *  DESCRIPTION:
 551  *
 552  *      Check with Card Services to determine if this device is open.
 553  *
 554  *  PARAMETERS:
 555  *
 556  *      dev - a pointer to the net_device structure whose open status will be
 557  *            checked
 558  *
 559  *  RETURNS:
 560  *
 561  *      nonzero if device is open
 562  *      0 otherwise
 563  *
 564  ******************************************************************************/
 565 int wl_adapter_is_open( struct net_device *dev )
 566 {
 567     struct wl_private *lp = wl_priv(dev);
 568     struct pcmcia_device *link = lp->link;
 569
 570     if(!pcmcia_dev_present(link)) {
 571         return 0;
 572     }
 573
 574     return( link->open );
 575 } // wl_adapter_is_open
 576 /*============================================================================*/
 577
 578
 579 #if DBG
 580
 581 /*******************************************************************************
 582  *      DbgEvent()
 583  *******************************************************************************
 584  *
 585  *  DESCRIPTION:
 586  *
 587  *      Converts the card serivces events to text for debugging.
 588  *
 589  *  PARAMETERS:
 590  *
 591  *      mask    - a integer representing the error(s) being reported by Card
 592  *                Services.
 593  *
 594  *  RETURNS:
 595  *
 596  *      a pointer to a string describing the error(s)
 597  *
 598  ******************************************************************************/
 599 const char* DbgEvent( int mask )
 600 {
 601     static char DbgBuffer[256];
 602     char *pBuf;
 603     /*------------------------------------------------------------------------*/
 604
 605
 606     pBuf    = DbgBuffer;
 607     *pBuf   = '\0';
 608
 609
 610     if( mask & CS_EVENT_WRITE_PROTECT )
 611         strcat( pBuf, "WRITE_PROTECT " );
 612
 613     if(mask & CS_EVENT_CARD_LOCK)
 614         strcat( pBuf, "CARD_LOCK " );
 615
 616     if(mask & CS_EVENT_CARD_INSERTION)
 617         strcat( pBuf, "CARD_INSERTION " );
 618
 619     if(mask & CS_EVENT_CARD_REMOVAL)
 620         strcat( pBuf, "CARD_REMOVAL " );
 621
 622     if(mask & CS_EVENT_BATTERY_DEAD)
 623         strcat( pBuf, "BATTERY_DEAD " );
 624
 625     if(mask & CS_EVENT_BATTERY_LOW)
 626         strcat( pBuf, "BATTERY_LOW " );
 627
 628     if(mask & CS_EVENT_READY_CHANGE)
 629         strcat( pBuf, "READY_CHANGE " );
 630
 631     if(mask & CS_EVENT_CARD_DETECT)
 632         strcat( pBuf, "CARD_DETECT " );
 633
 634     if(mask & CS_EVENT_RESET_REQUEST)
 635         strcat( pBuf, "RESET_REQUEST " );
 636
 637     if(mask & CS_EVENT_RESET_PHYSICAL)
 638         strcat( pBuf, "RESET_PHYSICAL " );
 639
 640     if(mask & CS_EVENT_CARD_RESET)
 641         strcat( pBuf, "CARD_RESET " );
 642
 643     if(mask & CS_EVENT_REGISTRATION_COMPLETE)
 644         strcat( pBuf, "REGISTRATION_COMPLETE " );
 645
 646     // if(mask & CS_EVENT_RESET_COMPLETE)
 647     //     strcat( pBuf, "RESET_COMPLETE " );
 648
 649     if(mask & CS_EVENT_PM_SUSPEND)
 650         strcat( pBuf, "PM_SUSPEND " );
 651
 652     if(mask & CS_EVENT_PM_RESUME)
 653         strcat( pBuf, "PM_RESUME " );
 654
 655     if(mask & CS_EVENT_INSERTION_REQUEST)
 656         strcat( pBuf, "INSERTION_REQUEST " );
 657
 658     if(mask & CS_EVENT_EJECTION_REQUEST)
 659         strcat( pBuf, "EJECTION_REQUEST " );
 660
 661     if(mask & CS_EVENT_MTD_REQUEST)
 662         strcat( pBuf, "MTD_REQUEST " );
 663
 664     if(mask & CS_EVENT_ERASE_COMPLETE)
 665         strcat( pBuf, "ERASE_COMPLETE " );
 666
 667     if(mask & CS_EVENT_REQUEST_ATTENTION)
 668         strcat( pBuf, "REQUEST_ATTENTION " );
 669
 670     if(mask & CS_EVENT_CB_DETECT)
 671         strcat( pBuf, "CB_DETECT " );
 672
 673     if(mask & CS_EVENT_3VCARD)
 674         strcat( pBuf, "3VCARD " );
 675
 676     if(mask & CS_EVENT_XVCARD)
 677         strcat( pBuf, "XVCARD " );
 678
 679
 680     if( *pBuf ) {
 681         pBuf[strlen(pBuf) - 1] = '\0';
 682     } else {
 683         if( mask != 0x0 ) {
 684             sprintf( pBuf, "<<0x%08x>>", mask );
 685         }
 686     }
 687
 688     return pBuf;
 689 } // DbgEvent
 690 /*============================================================================*/
 691
 692 #endif  /* DBG */