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/bitops.h>
  78
  79 #include <linux/netdevice.h>
  80 #include <linux/etherdevice.h>
  81 #include <linux/skbuff.h>
  82 #include <linux/if_arp.h>
  83 #include <linux/ioport.h>
  84 #include <linux/module.h>
  85
  86 #include <pcmcia/cistpl.h>
  87 #include <pcmcia/cisreg.h>
  88 #include <pcmcia/ciscode.h>
  89 #include <pcmcia/ds.h>
  90 #include <debug.h>
  91
  92 #include <hcf.h>
  93 #include <dhf.h>
  94 #include <hcfdef.h>
  95
  96 #include <wl_if.h>
  97 #include <wl_internal.h>
  98 #include <wl_util.h>
  99 #include <wl_main.h>
 100 #include <wl_netdev.h>
 101 #include <wl_cs.h>
 102
 103 /*******************************************************************************
 104  *      wl_adapter_attach()
 105  *******************************************************************************
 106  *
 107  *  DESCRIPTION:
 108  *
 109  *      Creates an instance of the driver, allocating local data structures for
 110  *  one device. The device is registered with Card Services.
 111  *
 112  *  PARAMETERS:
 113  *
 114  *      none
 115  *
 116  *  RETURNS:
 117  *
 118  *      pointer to an allocated dev_link_t structure
 119  *      NULL on failure
 120  *
 121  ******************************************************************************/
 122 static int wl_adapter_attach(struct pcmcia_device *link)
 123 {
 124         struct net_device   *dev;
 125         struct wl_private   *lp;
 126         int ret;
 127
 128         dev = wl_device_alloc();
 129         if (dev == NULL) {
 130                 DBG_ERROR(DbgInfo, "wl_device_alloc returned NULL\n");
 131                 return -ENOMEM;
 132         }
 133
 134         link->resource[0]->end  = HCF_NUM_IO_PORTS;
 135         link->resource[0]->flags= IO_DATA_PATH_WIDTH_16;
 136         link->config_flags     |= CONF_ENABLE_IRQ;
 137         link->config_index      = 5;
 138         link->config_regs       = PRESENT_OPTION;
 139
 140         link->priv = dev;
 141         lp = wl_priv(dev);
 142         lp->link = link;
 143
 144         ret = wl_adapter_insert(link);
 145         if (ret != 0)
 146                 wl_device_dealloc(dev);
 147
 148         return ret;
 149 } /* wl_adapter_attach */
 150 /*============================================================================*/
 151
 152
 153
 154 static void wl_adapter_detach(struct pcmcia_device *link)
 155 {
 156         struct net_device   *dev = link->priv;
 157
 158         DBG_PARAM(DbgInfo, "link", "0x%p", link);
 159
 160         wl_adapter_release(link);
 161
 162         if (dev) {
 163                 unregister_netdev(dev);
 164                 wl_device_dealloc(dev);
 165         }
 166 } /* wl_adapter_detach */
 167 /*============================================================================*/
 168
 169
 170 void wl_adapter_release(struct pcmcia_device *link)
 171 {
 172         DBG_PARAM(DbgInfo, "link", "0x%p", link);
 173
 174         /* Stop hardware */
 175         wl_remove(link->priv);
 176
 177         pcmcia_disable_device(link);
 178 } /* wl_adapter_release */
 179 /*============================================================================*/
 180
 181 static int wl_adapter_suspend(struct pcmcia_device *link)
 182 {
 183         struct net_device *dev = link->priv;
 184
 185         /* if (link->open) { */
 186         netif_device_detach(dev);
 187         wl_suspend(dev);
 188         /* CHECK! pcmcia_release_configuration(link->handle); */
 189         /* } */
 190
 191         return 0;
 192 } /* wl_adapter_suspend */
 193
 194 static int wl_adapter_resume(struct pcmcia_device *link)
 195 {
 196         struct net_device *dev = link->priv;
 197
 198         wl_resume(dev);
 199
 200         netif_device_attach(dev);
 201
 202         return 0;
 203 } /* wl_adapter_resume */
 204
 205 int wl_adapter_insert(struct pcmcia_device *link)
 206 {
 207         struct net_device *dev;
 208         int ret;
 209
 210         DBG_PARAM(DbgInfo, "link", "0x%p", link);
 211
 212         dev     = link->priv;
 213
 214         /* Do we need to allocate an interrupt? */
 215         link->config_flags |= CONF_ENABLE_IRQ;
 216         link->io_lines = 6;
 217
 218         ret = pcmcia_request_io(link);
 219         if (ret != 0)
 220                 goto failed;
 221
 222         ret = pcmcia_request_irq(link, (void *) wl_isr);
 223         if (ret != 0)
 224                 goto failed;
 225
 226         ret = pcmcia_enable_device(link);
 227         if (ret != 0)
 228                 goto failed;
 229
 230         dev->irq        = link->irq;
 231         dev->base_addr  = link->resource[0]->start;
 232
 233         SET_NETDEV_DEV(dev, &link->dev);
 234         ret = register_netdev(dev);
 235         if (ret != 0) {
 236                 printk("%s: register_netdev() failed\n", KBUILD_MODNAME);
 237                 goto failed;
 238         }
 239
 240         printk(KERN_INFO "%s: Wireless, io_addr %#03lx, irq %d, mac_address"
 241                 " %pM\n", dev->name, dev->base_addr, dev->irq, dev->dev_addr);
 242
 243         return 0;
 244
 245 failed:
 246         wl_adapter_release(link);
 247         return ret;
 248 } /* wl_adapter_insert */
 249 /*============================================================================*/
 250
 251
 252 /*******************************************************************************
 253  *      wl_adapter_open()
 254  *******************************************************************************
 255  *
 256  *  DESCRIPTION:
 257  *
 258  *      Open the device.
 259  *
 260  *  PARAMETERS:
 261  *
 262  *      dev - a pointer to a net_device structure representing the network
 263  *            device to open.
 264  *
 265  *  RETURNS:
 266  *
 267  *      0 on success
 268  *      errno value otherwise
 269  *
 270  ******************************************************************************/
 271 int wl_adapter_open(struct net_device *dev)
 272 {
 273         struct wl_private *lp = wl_priv(dev);
 274         struct pcmcia_device *link = lp->link;
 275         int result = 0;
 276         int hcf_status = HCF_SUCCESS;
 277
 278         DBG_PRINT("%s\n", VERSION_INFO);
 279         DBG_PARAM(DbgInfo, "dev", "%s (0x%p)", dev->name, dev);
 280
 281         if (!pcmcia_dev_present(link))
 282                 return -ENODEV;
 283
 284         link->open++;
 285
 286         hcf_status = wl_open(dev);
 287
 288         if (hcf_status != HCF_SUCCESS) {
 289                 link->open--;
 290                 result = -ENODEV;
 291         }
 292
 293         return result;
 294 } /* wl_adapter_open */
 295 /*============================================================================*/
 296
 297
 298 /*******************************************************************************
 299  *      wl_adapter_close()
 300  *******************************************************************************
 301  *
 302  *  DESCRIPTION:
 303  *
 304  *      Close the device.
 305  *
 306  *  PARAMETERS:
 307  *
 308  *      dev - a pointer to a net_device structure representing the network
 309  *            device to close.
 310  *
 311  *  RETURNS:
 312  *
 313  *      0 on success
 314  *      errno value otherwise
 315  *
 316  ******************************************************************************/
 317 int wl_adapter_close(struct net_device *dev)
 318 {
 319         struct wl_private *lp = wl_priv(dev);
 320         struct pcmcia_device *link = lp->link;
 321
 322         DBG_PARAM(DbgInfo, "dev", "%s (0x%p)", dev->name, dev);
 323
 324         if (link == NULL)
 325                 return -ENODEV;
 326
 327         DBG_TRACE(DbgInfo, "%s: Shutting down adapter.\n", dev->name);
 328         wl_close(dev);
 329
 330         link->open--;
 331
 332         return 0;
 333 } /* wl_adapter_close */
 334 /*============================================================================*/
 335
 336 static const struct pcmcia_device_id wl_adapter_ids[] = {
 337 #if !((HCF_TYPE) & HCF_TYPE_HII5)
 338         PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0003),
 339         PCMCIA_DEVICE_PROD_ID12("Agere Systems", "Wireless PC Card Model 0110",
 340                                 0x33103a9b, 0xe175b0dd),
 341 #else
 342         PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0004),
 343         PCMCIA_DEVICE_PROD_ID12("Linksys", "WCF54G_Wireless-G_CompactFlash_Card",
 344                                 0x0733cc81, 0x98a599e1),
 345 #endif  /* (HCF_TYPE) & HCF_TYPE_HII5 */
 346         PCMCIA_DEVICE_NULL,
 347 };
 348 MODULE_DEVICE_TABLE(pcmcia, wl_adapter_ids);
 349
 350 static struct pcmcia_driver wlags49_driver = {
 351         .owner      = THIS_MODULE,
 352         .name       = DRIVER_NAME,
 353         .probe      = wl_adapter_attach,
 354         .remove     = wl_adapter_detach,
 355         .id_table   = wl_adapter_ids,
 356         .suspend    = wl_adapter_suspend,
 357         .resume     = wl_adapter_resume,
 358 };
 359
 360
 361
 362 /*******************************************************************************
 363  *      wl_adapter_init_module()
 364  *******************************************************************************
 365  *
 366  *  DESCRIPTION:
 367  *
 368  *      Called by init_module() to perform PCMCIA driver initialization.
 369  *
 370  *  PARAMETERS:
 371  *
 372  *      N/A
 373  *
 374  *  RETURNS:
 375  *
 376  *      0 on success
 377  *      -1 on error
 378  *
 379  ******************************************************************************/
 380 int wl_adapter_init_module(void)
 381 {
 382         return pcmcia_register_driver(&wlags49_driver);
 383 } /* wl_adapter_init_module */
 384 /*============================================================================*/
 385
 386
 387 /*******************************************************************************
 388  *      wl_adapter_cleanup_module()
 389  *******************************************************************************
 390  *
 391  *  DESCRIPTION:
 392  *
 393  *      Called by cleanup_module() to perform driver uninitialization.
 394  *
 395  *  PARAMETERS:
 396  *
 397  *      N/A
 398  *
 399  *  RETURNS:
 400  *
 401  *      N/A
 402  *
 403  ******************************************************************************/
 404 void wl_adapter_cleanup_module(void)
 405 {
 406         pcmcia_unregister_driver(&wlags49_driver);
 407 } /* wl_adapter_cleanup_module */
 408 /*============================================================================*/
 409
 410
 411 /*******************************************************************************
 412  *      wl_adapter_is_open()
 413  *******************************************************************************
 414  *
 415  *  DESCRIPTION:
 416  *
 417  *      Check with Card Services to determine if this device is open.
 418  *
 419  *  PARAMETERS:
 420  *
 421  *      dev - a pointer to the net_device structure whose open status will be
 422  *            checked
 423  *
 424  *  RETURNS:
 425  *
 426  *      nonzero if device is open
 427  *      0 otherwise
 428  *
 429  ******************************************************************************/
 430 int wl_adapter_is_open(struct net_device *dev)
 431 {
 432         struct wl_private *lp = wl_priv(dev);
 433         struct pcmcia_device *link = lp->link;
 434
 435         if (!pcmcia_dev_present(link))
 436                 return 0;
 437
 438         return link->open;
 439 } /* wl_adapter_is_open */
 440 /*============================================================================*/