git.oblomov.eu Git - linux-2.6/blob - drivers/net/wireless/libertas/main.c

   1 /**
   2   * This file contains the major functions in WLAN
   3   * driver. It includes init, exit, open, close and main
   4   * thread etc..
   5   */
   6
   7 #include <linux/moduleparam.h>
   8 #include <linux/delay.h>
   9 #include <linux/freezer.h>
  10 #include <linux/etherdevice.h>
  11 #include <linux/netdevice.h>
  12 #include <linux/if_arp.h>
  13 #include <linux/kthread.h>
  14
  15 #include <net/iw_handler.h>
  16 #include <net/ieee80211.h>
  17
  18 #include "host.h"
  19 #include "decl.h"
  20 #include "dev.h"
  21 #include "wext.h"
  22 #include "debugfs.h"
  23 #include "assoc.h"
  24 #include "join.h"
  25
  26 #define DRIVER_RELEASE_VERSION "323.p0"
  27 const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
  28 #ifdef  DEBUG
  29     "-dbg"
  30 #endif
  31     "";
  32
  33
  34 /* Module parameters */
  35 unsigned int lbs_debug;
  36 EXPORT_SYMBOL_GPL(lbs_debug);
  37 module_param_named(libertas_debug, lbs_debug, int, 0644);
  38
  39
  40 #define LBS_TX_PWR_DEFAULT              20      /*100mW */
  41 #define LBS_TX_PWR_US_DEFAULT           20      /*100mW */
  42 #define LBS_TX_PWR_JP_DEFAULT           16      /*50mW */
  43 #define LBS_TX_PWR_FR_DEFAULT           20      /*100mW */
  44 #define LBS_TX_PWR_EMEA_DEFAULT 20      /*100mW */
  45
  46 /* Format { channel, frequency (MHz), maxtxpower } */
  47 /* band: 'B/G', region: USA FCC/Canada IC */
  48 static struct chan_freq_power channel_freq_power_US_BG[] = {
  49         {1, 2412, LBS_TX_PWR_US_DEFAULT},
  50         {2, 2417, LBS_TX_PWR_US_DEFAULT},
  51         {3, 2422, LBS_TX_PWR_US_DEFAULT},
  52         {4, 2427, LBS_TX_PWR_US_DEFAULT},
  53         {5, 2432, LBS_TX_PWR_US_DEFAULT},
  54         {6, 2437, LBS_TX_PWR_US_DEFAULT},
  55         {7, 2442, LBS_TX_PWR_US_DEFAULT},
  56         {8, 2447, LBS_TX_PWR_US_DEFAULT},
  57         {9, 2452, LBS_TX_PWR_US_DEFAULT},
  58         {10, 2457, LBS_TX_PWR_US_DEFAULT},
  59         {11, 2462, LBS_TX_PWR_US_DEFAULT}
  60 };
  61
  62 /* band: 'B/G', region: Europe ETSI */
  63 static struct chan_freq_power channel_freq_power_EU_BG[] = {
  64         {1, 2412, LBS_TX_PWR_EMEA_DEFAULT},
  65         {2, 2417, LBS_TX_PWR_EMEA_DEFAULT},
  66         {3, 2422, LBS_TX_PWR_EMEA_DEFAULT},
  67         {4, 2427, LBS_TX_PWR_EMEA_DEFAULT},
  68         {5, 2432, LBS_TX_PWR_EMEA_DEFAULT},
  69         {6, 2437, LBS_TX_PWR_EMEA_DEFAULT},
  70         {7, 2442, LBS_TX_PWR_EMEA_DEFAULT},
  71         {8, 2447, LBS_TX_PWR_EMEA_DEFAULT},
  72         {9, 2452, LBS_TX_PWR_EMEA_DEFAULT},
  73         {10, 2457, LBS_TX_PWR_EMEA_DEFAULT},
  74         {11, 2462, LBS_TX_PWR_EMEA_DEFAULT},
  75         {12, 2467, LBS_TX_PWR_EMEA_DEFAULT},
  76         {13, 2472, LBS_TX_PWR_EMEA_DEFAULT}
  77 };
  78
  79 /* band: 'B/G', region: Spain */
  80 static struct chan_freq_power channel_freq_power_SPN_BG[] = {
  81         {10, 2457, LBS_TX_PWR_DEFAULT},
  82         {11, 2462, LBS_TX_PWR_DEFAULT}
  83 };
  84
  85 /* band: 'B/G', region: France */
  86 static struct chan_freq_power channel_freq_power_FR_BG[] = {
  87         {10, 2457, LBS_TX_PWR_FR_DEFAULT},
  88         {11, 2462, LBS_TX_PWR_FR_DEFAULT},
  89         {12, 2467, LBS_TX_PWR_FR_DEFAULT},
  90         {13, 2472, LBS_TX_PWR_FR_DEFAULT}
  91 };
  92
  93 /* band: 'B/G', region: Japan */
  94 static struct chan_freq_power channel_freq_power_JPN_BG[] = {
  95         {1, 2412, LBS_TX_PWR_JP_DEFAULT},
  96         {2, 2417, LBS_TX_PWR_JP_DEFAULT},
  97         {3, 2422, LBS_TX_PWR_JP_DEFAULT},
  98         {4, 2427, LBS_TX_PWR_JP_DEFAULT},
  99         {5, 2432, LBS_TX_PWR_JP_DEFAULT},
 100         {6, 2437, LBS_TX_PWR_JP_DEFAULT},
 101         {7, 2442, LBS_TX_PWR_JP_DEFAULT},
 102         {8, 2447, LBS_TX_PWR_JP_DEFAULT},
 103         {9, 2452, LBS_TX_PWR_JP_DEFAULT},
 104         {10, 2457, LBS_TX_PWR_JP_DEFAULT},
 105         {11, 2462, LBS_TX_PWR_JP_DEFAULT},
 106         {12, 2467, LBS_TX_PWR_JP_DEFAULT},
 107         {13, 2472, LBS_TX_PWR_JP_DEFAULT},
 108         {14, 2484, LBS_TX_PWR_JP_DEFAULT}
 109 };
 110
 111 /**
 112  * the structure for channel, frequency and power
 113  */
 114 struct region_cfp_table {
 115         u8 region;
 116         struct chan_freq_power *cfp_BG;
 117         int cfp_no_BG;
 118 };
 119
 120 /**
 121  * the structure for the mapping between region and CFP
 122  */
 123 static struct region_cfp_table region_cfp_table[] = {
 124         {0x10,                  /*US FCC */
 125          channel_freq_power_US_BG,
 126          ARRAY_SIZE(channel_freq_power_US_BG),
 127          }
 128         ,
 129         {0x20,                  /*CANADA IC */
 130          channel_freq_power_US_BG,
 131          ARRAY_SIZE(channel_freq_power_US_BG),
 132          }
 133         ,
 134         {0x30, /*EU*/ channel_freq_power_EU_BG,
 135          ARRAY_SIZE(channel_freq_power_EU_BG),
 136          }
 137         ,
 138         {0x31, /*SPAIN*/ channel_freq_power_SPN_BG,
 139          ARRAY_SIZE(channel_freq_power_SPN_BG),
 140          }
 141         ,
 142         {0x32, /*FRANCE*/ channel_freq_power_FR_BG,
 143          ARRAY_SIZE(channel_freq_power_FR_BG),
 144          }
 145         ,
 146         {0x40, /*JAPAN*/ channel_freq_power_JPN_BG,
 147          ARRAY_SIZE(channel_freq_power_JPN_BG),
 148          }
 149         ,
 150 /*Add new region here */
 151 };
 152
 153 /**
 154  * the table to keep region code
 155  */
 156 u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
 157     { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
 158
 159 /**
 160  * 802.11b/g supported bitrates (in 500Kb/s units)
 161  */
 162 u8 lbs_bg_rates[MAX_RATES] =
 163     { 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
 164 0x00, 0x00 };
 165
 166 /**
 167  * FW rate table.  FW refers to rates by their index in this table, not by the
 168  * rate value itself.  Values of 0x00 are
 169  * reserved positions.
 170  */
 171 static u8 fw_data_rates[MAX_RATES] =
 172     { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
 173       0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
 174 };
 175
 176 /**
 177  *  @brief use index to get the data rate
 178  *
 179  *  @param idx                The index of data rate
 180  *  @return                     data rate or 0
 181  */
 182 u32 lbs_fw_index_to_data_rate(u8 idx)
 183 {
 184         if (idx >= sizeof(fw_data_rates))
 185                 idx = 0;
 186         return fw_data_rates[idx];
 187 }
 188
 189 /**
 190  *  @brief use rate to get the index
 191  *
 192  *  @param rate                 data rate
 193  *  @return                     index or 0
 194  */
 195 u8 lbs_data_rate_to_fw_index(u32 rate)
 196 {
 197         u8 i;
 198
 199         if (!rate)
 200                 return 0;
 201
 202         for (i = 0; i < sizeof(fw_data_rates); i++) {
 203                 if (rate == fw_data_rates[i])
 204                         return i;
 205         }
 206         return 0;
 207 }
 208
 209 /**
 210  * Attributes exported through sysfs
 211  */
 212
 213 /**
 214  * @brief Get function for sysfs attribute anycast_mask
 215  */
 216 static ssize_t lbs_anycast_get(struct device *dev,
 217                 struct device_attribute *attr, char * buf)
 218 {
 219         struct cmd_ds_mesh_access mesh_access;
 220
 221         memset(&mesh_access, 0, sizeof(mesh_access));
 222         lbs_prepare_and_send_command(to_net_dev(dev)->priv,
 223                         CMD_MESH_ACCESS,
 224                         CMD_ACT_MESH_GET_ANYCAST,
 225                         CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
 226
 227         return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0]));
 228 }
 229
 230 /**
 231  * @brief Set function for sysfs attribute anycast_mask
 232  */
 233 static ssize_t lbs_anycast_set(struct device *dev,
 234                 struct device_attribute *attr, const char * buf, size_t count)
 235 {
 236         struct cmd_ds_mesh_access mesh_access;
 237         uint32_t datum;
 238
 239         memset(&mesh_access, 0, sizeof(mesh_access));
 240         sscanf(buf, "%x", &datum);
 241         mesh_access.data[0] = cpu_to_le32(datum);
 242
 243         lbs_prepare_and_send_command((to_net_dev(dev))->priv,
 244                         CMD_MESH_ACCESS,
 245                         CMD_ACT_MESH_SET_ANYCAST,
 246                         CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
 247         return strlen(buf);
 248 }
 249
 250 int lbs_add_rtap(struct lbs_private *priv);
 251 void lbs_remove_rtap(struct lbs_private *priv);
 252
 253 /**
 254  * Get function for sysfs attribute rtap
 255  */
 256 static ssize_t lbs_rtap_get(struct device *dev,
 257                 struct device_attribute *attr, char * buf)
 258 {
 259         struct lbs_private *priv = to_net_dev(dev)->priv;
 260         return snprintf(buf, 5, "0x%X\n", priv->monitormode);
 261 }
 262
 263 /**
 264  *  Set function for sysfs attribute rtap
 265  */
 266 static ssize_t lbs_rtap_set(struct device *dev,
 267                 struct device_attribute *attr, const char * buf, size_t count)
 268 {
 269         int monitor_mode;
 270         struct lbs_private *priv = to_net_dev(dev)->priv;
 271
 272         sscanf(buf, "%x", &monitor_mode);
 273         if (monitor_mode != LBS_MONITOR_OFF) {
 274                 if(priv->monitormode == monitor_mode)
 275                         return strlen(buf);
 276                 if (priv->monitormode == LBS_MONITOR_OFF) {
 277                         if (priv->mode == IW_MODE_INFRA)
 278                                 lbs_send_deauthentication(priv);
 279                         else if (priv->mode == IW_MODE_ADHOC)
 280                                 lbs_stop_adhoc_network(priv);
 281                         lbs_add_rtap(priv);
 282                 }
 283                 priv->monitormode = monitor_mode;
 284         }
 285
 286         else {
 287                 if (priv->monitormode == LBS_MONITOR_OFF)
 288                         return strlen(buf);
 289                 priv->monitormode = LBS_MONITOR_OFF;
 290                 lbs_remove_rtap(priv);
 291
 292                 if (priv->currenttxskb) {
 293                         dev_kfree_skb_any(priv->currenttxskb);
 294                         priv->currenttxskb = NULL;
 295                 }
 296
 297                 /* Wake queues, command thread, etc. */
 298                 lbs_host_to_card_done(priv);
 299         }
 300
 301         lbs_prepare_and_send_command(priv,
 302                         CMD_802_11_MONITOR_MODE, CMD_ACT_SET,
 303                         CMD_OPTION_WAITFORRSP, 0, &priv->monitormode);
 304         return strlen(buf);
 305 }
 306
 307 /**
 308  * lbs_rtap attribute to be exported per mshX interface
 309  * through sysfs (/sys/class/net/mshX/libertas-rtap)
 310  */
 311 static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get,
 312                 lbs_rtap_set );
 313
 314 /**
 315  * anycast_mask attribute to be exported per mshX interface
 316  * through sysfs (/sys/class/net/mshX/anycast_mask)
 317  */
 318 static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set);
 319
 320 static ssize_t lbs_autostart_enabled_get(struct device *dev,
 321                 struct device_attribute *attr, char * buf)
 322 {
 323         struct cmd_ds_mesh_access mesh_access;
 324
 325         memset(&mesh_access, 0, sizeof(mesh_access));
 326         lbs_prepare_and_send_command(to_net_dev(dev)->priv,
 327                         CMD_MESH_ACCESS,
 328                         CMD_ACT_MESH_GET_AUTOSTART_ENABLED,
 329                         CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
 330
 331         return sprintf(buf, "%d\n", le32_to_cpu(mesh_access.data[0]));
 332 }
 333
 334 static ssize_t lbs_autostart_enabled_set(struct device *dev,
 335                 struct device_attribute *attr, const char * buf, size_t count)
 336 {
 337         struct cmd_ds_mesh_access mesh_access;
 338         uint32_t datum;
 339         struct lbs_private *priv = (to_net_dev(dev))->priv;
 340         int ret;
 341
 342         memset(&mesh_access, 0, sizeof(mesh_access));
 343         sscanf(buf, "%d", &datum);
 344         mesh_access.data[0] = cpu_to_le32(datum);
 345
 346         ret = lbs_prepare_and_send_command(priv,
 347                         CMD_MESH_ACCESS,
 348                         CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
 349                         CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
 350         if (ret == 0)
 351                 priv->mesh_autostart_enabled = datum ? 1 : 0;
 352
 353         return strlen(buf);
 354 }
 355
 356 static DEVICE_ATTR(autostart_enabled, 0644,
 357                 lbs_autostart_enabled_get, lbs_autostart_enabled_set);
 358
 359 static struct attribute *lbs_mesh_sysfs_entries[] = {
 360         &dev_attr_anycast_mask.attr,
 361         &dev_attr_autostart_enabled.attr,
 362         NULL,
 363 };
 364
 365 static struct attribute_group lbs_mesh_attr_group = {
 366         .attrs = lbs_mesh_sysfs_entries,
 367 };
 368
 369 /**
 370  *  @brief Check if the device can be open and wait if necessary.
 371  *
 372  *  @param dev     A pointer to net_device structure
 373  *  @return        0
 374  *
 375  * For USB adapter, on some systems the device open handler will be
 376  * called before FW ready. Use the following flag check and wait
 377  * function to work around the issue.
 378  *
 379  */
 380 static int pre_open_check(struct net_device *dev)
 381 {
 382         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 383         int i = 0;
 384
 385         while (!priv->fw_ready && i < 20) {
 386                 i++;
 387                 msleep_interruptible(100);
 388         }
 389         if (!priv->fw_ready) {
 390                 lbs_pr_err("firmware not ready\n");
 391                 return -1;
 392         }
 393
 394         return 0;
 395 }
 396
 397 /**
 398  *  @brief This function opens the device
 399  *
 400  *  @param dev     A pointer to net_device structure
 401  *  @return        0
 402  */
 403 static int lbs_dev_open(struct net_device *dev)
 404 {
 405         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 406
 407         lbs_deb_enter(LBS_DEB_NET);
 408
 409         priv->open = 1;
 410
 411         if (priv->connect_status == LBS_CONNECTED)
 412                 netif_carrier_on(priv->dev);
 413         else
 414                 netif_carrier_off(priv->dev);
 415
 416         if (priv->mesh_dev) {
 417                 if (priv->mesh_connect_status == LBS_CONNECTED)
 418                         netif_carrier_on(priv->mesh_dev);
 419                 else
 420                         netif_carrier_off(priv->mesh_dev);
 421         }
 422
 423         lbs_deb_leave(LBS_DEB_NET);
 424         return 0;
 425 }
 426 /**
 427  *  @brief This function opens the mshX interface
 428  *
 429  *  @param dev     A pointer to net_device structure
 430  *  @return        0
 431  */
 432 static int lbs_mesh_open(struct net_device *dev)
 433 {
 434         struct lbs_private *priv = (struct lbs_private *) dev->priv ;
 435
 436         if (pre_open_check(dev) == -1)
 437                 return -1;
 438         priv->mesh_open = 1 ;
 439         netif_wake_queue(priv->mesh_dev);
 440
 441         priv->mesh_connect_status = LBS_CONNECTED;
 442
 443         netif_carrier_on(priv->mesh_dev);
 444         netif_wake_queue(priv->mesh_dev);
 445         if (priv->infra_open == 0)
 446                 return lbs_dev_open(priv->dev) ;
 447         return 0;
 448 }
 449
 450 /**
 451  *  @brief This function opens the ethX interface
 452  *
 453  *  @param dev     A pointer to net_device structure
 454  *  @return        0
 455  */
 456 static int lbs_open(struct net_device *dev)
 457 {
 458         struct lbs_private *priv = (struct lbs_private *) dev->priv ;
 459
 460         if(pre_open_check(dev) == -1)
 461                 return -1;
 462         priv->infra_open = 1 ;
 463         netif_wake_queue(priv->dev);
 464         if (priv->open == 0)
 465                 return lbs_dev_open(priv->dev) ;
 466         return 0;
 467 }
 468
 469 static int lbs_dev_close(struct net_device *dev)
 470 {
 471         struct lbs_private *priv = dev->priv;
 472
 473         lbs_deb_enter(LBS_DEB_NET);
 474
 475         netif_carrier_off(priv->dev);
 476         priv->open = 0;
 477
 478         lbs_deb_leave(LBS_DEB_NET);
 479         return 0;
 480 }
 481
 482 /**
 483  *  @brief This function closes the mshX interface
 484  *
 485  *  @param dev     A pointer to net_device structure
 486  *  @return        0
 487  */
 488 static int lbs_mesh_close(struct net_device *dev)
 489 {
 490         struct lbs_private *priv = (struct lbs_private *) (dev->priv);
 491
 492         priv->mesh_open = 0;
 493         netif_stop_queue(priv->mesh_dev);
 494         if (priv->infra_open == 0)
 495                 return lbs_dev_close(dev);
 496         else
 497                 return 0;
 498 }
 499
 500 /**
 501  *  @brief This function closes the ethX interface
 502  *
 503  *  @param dev     A pointer to net_device structure
 504  *  @return        0
 505  */
 506 static int lbs_close(struct net_device *dev)
 507 {
 508         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 509
 510         netif_stop_queue(dev);
 511         priv->infra_open = 0;
 512         if (priv->mesh_open == 0)
 513                 return lbs_dev_close(dev);
 514         else
 515                 return 0;
 516 }
 517
 518 static void lbs_tx_timeout(struct net_device *dev)
 519 {
 520         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 521
 522         lbs_deb_enter(LBS_DEB_TX);
 523
 524         lbs_pr_err("tx watch dog timeout\n");
 525
 526         dev->trans_start = jiffies;
 527
 528         if (priv->currenttxskb) {
 529                 priv->eventcause = 0x01000000;
 530                 lbs_send_tx_feedback(priv);
 531         }
 532         /* XX: Shouldn't we also call into the hw-specific driver
 533            to kick it somehow? */
 534         lbs_host_to_card_done(priv);
 535
 536         lbs_deb_leave(LBS_DEB_TX);
 537 }
 538
 539 void lbs_host_to_card_done(struct lbs_private *priv)
 540 {
 541         unsigned long flags;
 542
 543         spin_lock_irqsave(&priv->driver_lock, flags);
 544
 545         priv->dnld_sent = DNLD_RES_RECEIVED;
 546
 547         /* Wake main thread if commands are pending */
 548         if (!priv->cur_cmd)
 549                 wake_up_interruptible(&priv->waitq);
 550
 551         /* Don't wake netif queues if we're in monitor mode and
 552            a TX packet is already pending, or if there are commands
 553            queued to be sent. */
 554         if (!priv->currenttxskb && list_empty(&priv->cmdpendingq)) {
 555                 if (priv->dev && priv->connect_status == LBS_CONNECTED)
 556                         netif_wake_queue(priv->dev);
 557
 558                 if (priv->mesh_dev && priv->mesh_connect_status == LBS_CONNECTED)
 559                         netif_wake_queue(priv->mesh_dev);
 560         }
 561         spin_unlock_irqrestore(&priv->driver_lock, flags);
 562 }
 563 EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
 564
 565 /**
 566  *  @brief This function returns the network statistics
 567  *
 568  *  @param dev     A pointer to struct lbs_private structure
 569  *  @return        A pointer to net_device_stats structure
 570  */
 571 static struct net_device_stats *lbs_get_stats(struct net_device *dev)
 572 {
 573         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 574
 575         return &priv->stats;
 576 }
 577
 578 static int lbs_set_mac_address(struct net_device *dev, void *addr)
 579 {
 580         int ret = 0;
 581         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 582         struct sockaddr *phwaddr = addr;
 583
 584         lbs_deb_enter(LBS_DEB_NET);
 585
 586         /* In case it was called from the mesh device */
 587         dev = priv->dev ;
 588
 589         memset(priv->current_addr, 0, ETH_ALEN);
 590
 591         /* dev->dev_addr is 8 bytes */
 592         lbs_deb_hex(LBS_DEB_NET, "dev->dev_addr", dev->dev_addr, ETH_ALEN);
 593
 594         lbs_deb_hex(LBS_DEB_NET, "addr", phwaddr->sa_data, ETH_ALEN);
 595         memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN);
 596
 597         ret = lbs_prepare_and_send_command(priv, CMD_802_11_MAC_ADDRESS,
 598                                     CMD_ACT_SET,
 599                                     CMD_OPTION_WAITFORRSP, 0, NULL);
 600
 601         if (ret) {
 602                 lbs_deb_net("set MAC address failed\n");
 603                 ret = -1;
 604                 goto done;
 605         }
 606
 607         lbs_deb_hex(LBS_DEB_NET, "priv->macaddr", priv->current_addr, ETH_ALEN);
 608         memcpy(dev->dev_addr, priv->current_addr, ETH_ALEN);
 609         if (priv->mesh_dev)
 610                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 611
 612 done:
 613         lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
 614         return ret;
 615 }
 616
 617 static int lbs_copy_multicast_address(struct lbs_private *priv,
 618                                      struct net_device *dev)
 619 {
 620         int i = 0;
 621         struct dev_mc_list *mcptr = dev->mc_list;
 622
 623         for (i = 0; i < dev->mc_count; i++) {
 624                 memcpy(&priv->multicastlist[i], mcptr->dmi_addr, ETH_ALEN);
 625                 mcptr = mcptr->next;
 626         }
 627
 628         return i;
 629
 630 }
 631
 632 static void lbs_set_multicast_list(struct net_device *dev)
 633 {
 634         struct lbs_private *priv = dev->priv;
 635         int oldpacketfilter;
 636         DECLARE_MAC_BUF(mac);
 637
 638         lbs_deb_enter(LBS_DEB_NET);
 639
 640         oldpacketfilter = priv->currentpacketfilter;
 641
 642         if (dev->flags & IFF_PROMISC) {
 643                 lbs_deb_net("enable promiscuous mode\n");
 644                 priv->currentpacketfilter |=
 645                     CMD_ACT_MAC_PROMISCUOUS_ENABLE;
 646                 priv->currentpacketfilter &=
 647                     ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
 648                       CMD_ACT_MAC_MULTICAST_ENABLE);
 649         } else {
 650                 /* Multicast */
 651                 priv->currentpacketfilter &=
 652                     ~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
 653
 654                 if (dev->flags & IFF_ALLMULTI || dev->mc_count >
 655                     MRVDRV_MAX_MULTICAST_LIST_SIZE) {
 656                         lbs_deb_net( "enabling all multicast\n");
 657                         priv->currentpacketfilter |=
 658                             CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
 659                         priv->currentpacketfilter &=
 660                             ~CMD_ACT_MAC_MULTICAST_ENABLE;
 661                 } else {
 662                         priv->currentpacketfilter &=
 663                             ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
 664
 665                         if (!dev->mc_count) {
 666                                 lbs_deb_net("no multicast addresses, "
 667                                        "disabling multicast\n");
 668                                 priv->currentpacketfilter &=
 669                                     ~CMD_ACT_MAC_MULTICAST_ENABLE;
 670                         } else {
 671                                 int i;
 672
 673                                 priv->currentpacketfilter |=
 674                                     CMD_ACT_MAC_MULTICAST_ENABLE;
 675
 676                                 priv->nr_of_multicastmacaddr =
 677                                     lbs_copy_multicast_address(priv, dev);
 678
 679                                 lbs_deb_net("multicast addresses: %d\n",
 680                                        dev->mc_count);
 681
 682                                 for (i = 0; i < dev->mc_count; i++) {
 683                                         lbs_deb_net("Multicast address %d:%s\n",
 684                                                i, print_mac(mac,
 685                                                priv->multicastlist[i]));
 686                                 }
 687                                 /* send multicast addresses to firmware */
 688                                 lbs_prepare_and_send_command(priv,
 689                                                       CMD_MAC_MULTICAST_ADR,
 690                                                       CMD_ACT_SET, 0, 0,
 691                                                       NULL);
 692                         }
 693                 }
 694         }
 695
 696         if (priv->currentpacketfilter != oldpacketfilter) {
 697                 lbs_set_mac_packet_filter(priv);
 698         }
 699
 700         lbs_deb_leave(LBS_DEB_NET);
 701 }
 702
 703 /**
 704  *  @brief This function handles the major jobs in the LBS driver.
 705  *  It handles all events generated by firmware, RX data received
 706  *  from firmware and TX data sent from kernel.
 707  *
 708  *  @param data    A pointer to lbs_thread structure
 709  *  @return        0
 710  */
 711 static int lbs_thread(void *data)
 712 {
 713         struct net_device *dev = data;
 714         struct lbs_private *priv = dev->priv;
 715         wait_queue_t wait;
 716         u8 ireg = 0;
 717
 718         lbs_deb_enter(LBS_DEB_THREAD);
 719
 720         init_waitqueue_entry(&wait, current);
 721
 722         set_freezable();
 723
 724         for (;;) {
 725                 lbs_deb_thread( "main-thread 111: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 726                                 priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 727
 728                 add_wait_queue(&priv->waitq, &wait);
 729                 set_current_state(TASK_INTERRUPTIBLE);
 730                 spin_lock_irq(&priv->driver_lock);
 731
 732                 if ((priv->psstate == PS_STATE_SLEEP) ||
 733                     (!priv->intcounter && (priv->dnld_sent || priv->cur_cmd || list_empty(&priv->cmdpendingq)))) {
 734                         lbs_deb_thread("main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
 735                                        priv->connect_status, priv->intcounter,
 736                                        priv->psmode, priv->psstate);
 737                         spin_unlock_irq(&priv->driver_lock);
 738                         schedule();
 739                 } else
 740                         spin_unlock_irq(&priv->driver_lock);
 741
 742                 lbs_deb_thread("main-thread 222 (waking up): intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 743                                priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 744
 745                 set_current_state(TASK_RUNNING);
 746                 remove_wait_queue(&priv->waitq, &wait);
 747                 try_to_freeze();
 748
 749                 lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 750                                priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 751
 752                 if (kthread_should_stop() || priv->surpriseremoved) {
 753                         lbs_deb_thread("main-thread: break from main thread: surpriseremoved=0x%x\n",
 754                                        priv->surpriseremoved);
 755                         break;
 756                 }
 757
 758
 759                 spin_lock_irq(&priv->driver_lock);
 760
 761                 if (priv->intcounter) {
 762                         u8 int_status;
 763
 764                         priv->intcounter = 0;
 765                         int_status = priv->hw_get_int_status(priv, &ireg);
 766
 767                         if (int_status) {
 768                                 lbs_deb_thread("main-thread: reading HOST_INT_STATUS_REG failed\n");
 769                                 spin_unlock_irq(&priv->driver_lock);
 770                                 continue;
 771                         }
 772                         priv->hisregcpy |= ireg;
 773                 }
 774
 775                 lbs_deb_thread("main-thread 444: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 776                                priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 777
 778                 /* command response? */
 779                 if (priv->hisregcpy & MRVDRV_CMD_UPLD_RDY) {
 780                         lbs_deb_thread("main-thread: cmd response ready\n");
 781
 782                         priv->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY;
 783                         spin_unlock_irq(&priv->driver_lock);
 784                         lbs_process_rx_command(priv);
 785                         spin_lock_irq(&priv->driver_lock);
 786                 }
 787
 788                 /* Any Card Event */
 789                 if (priv->hisregcpy & MRVDRV_CARDEVENT) {
 790                         lbs_deb_thread("main-thread: Card Event Activity\n");
 791
 792                         priv->hisregcpy &= ~MRVDRV_CARDEVENT;
 793
 794                         if (priv->hw_read_event_cause(priv)) {
 795                                 lbs_pr_alert("main-thread: hw_read_event_cause failed\n");
 796                                 spin_unlock_irq(&priv->driver_lock);
 797                                 continue;
 798                         }
 799                         spin_unlock_irq(&priv->driver_lock);
 800                         lbs_process_event(priv);
 801                 } else
 802                         spin_unlock_irq(&priv->driver_lock);
 803
 804                 /* Check if we need to confirm Sleep Request received previously */
 805                 if (priv->psstate == PS_STATE_PRE_SLEEP &&
 806                     !priv->dnld_sent && !priv->cur_cmd) {
 807                         if (priv->connect_status == LBS_CONNECTED) {
 808                                 lbs_deb_thread("main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p dnld_sent=%d cur_cmd=%p, confirm now\n",
 809                                                priv->intcounter, priv->currenttxskb, priv->dnld_sent, priv->cur_cmd);
 810
 811                                 lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
 812                         } else {
 813                                 /* workaround for firmware sending
 814                                  * deauth/linkloss event immediately
 815                                  * after sleep request; remove this
 816                                  * after firmware fixes it
 817                                  */
 818                                 priv->psstate = PS_STATE_AWAKE;
 819                                 lbs_pr_alert("main-thread: ignore PS_SleepConfirm in non-connected state\n");
 820                         }
 821                 }
 822
 823                 /* The PS state is changed during processing of Sleep Request
 824                  * event above
 825                  */
 826                 if ((priv->psstate == PS_STATE_SLEEP) ||
 827                     (priv->psstate == PS_STATE_PRE_SLEEP))
 828                         continue;
 829
 830                 /* Execute the next command */
 831                 if (!priv->dnld_sent && !priv->cur_cmd)
 832                         lbs_execute_next_command(priv);
 833
 834                 /* Wake-up command waiters which can't sleep in
 835                  * lbs_prepare_and_send_command
 836                  */
 837                 if (!list_empty(&priv->cmdpendingq))
 838                         wake_up_all(&priv->cmd_pending);
 839         }
 840
 841         del_timer(&priv->command_timer);
 842         wake_up_all(&priv->cmd_pending);
 843
 844         lbs_deb_leave(LBS_DEB_THREAD);
 845         return 0;
 846 }
 847
 848 /**
 849  *  @brief This function downloads firmware image, gets
 850  *  HW spec from firmware and set basic parameters to
 851  *  firmware.
 852  *
 853  *  @param priv    A pointer to struct lbs_private structure
 854  *  @return        0 or -1
 855  */
 856 static int lbs_setup_firmware(struct lbs_private *priv)
 857 {
 858         int ret = -1;
 859         struct cmd_ds_mesh_access mesh_access;
 860
 861         lbs_deb_enter(LBS_DEB_FW);
 862
 863         /*
 864          * Read MAC address from HW
 865          */
 866         memset(priv->current_addr, 0xff, ETH_ALEN);
 867
 868         ret = lbs_prepare_and_send_command(priv, CMD_GET_HW_SPEC,
 869                                     0, CMD_OPTION_WAITFORRSP, 0, NULL);
 870
 871         if (ret) {
 872                 ret = -1;
 873                 goto done;
 874         }
 875
 876         lbs_set_mac_packet_filter(priv);
 877
 878         /* Get the supported Data rates */
 879         ret = lbs_prepare_and_send_command(priv, CMD_802_11_DATA_RATE,
 880                                     CMD_ACT_GET_TX_RATE,
 881                                     CMD_OPTION_WAITFORRSP, 0, NULL);
 882
 883         if (ret) {
 884                 ret = -1;
 885                 goto done;
 886         }
 887
 888         /* Disable mesh autostart */
 889         if (priv->mesh_dev) {
 890                 memset(&mesh_access, 0, sizeof(mesh_access));
 891                 mesh_access.data[0] = cpu_to_le32(0);
 892                 ret = lbs_prepare_and_send_command(priv,
 893                                 CMD_MESH_ACCESS,
 894                                 CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
 895                                 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
 896                 if (ret) {
 897                         ret = -1;
 898                         goto done;
 899                 }
 900                 priv->mesh_autostart_enabled = 0;
 901         }
 902
 903         ret = 0;
 904 done:
 905         lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
 906         return ret;
 907 }
 908
 909 /**
 910  *  This function handles the timeout of command sending.
 911  *  It will re-send the same command again.
 912  */
 913 static void command_timer_fn(unsigned long data)
 914 {
 915         struct lbs_private *priv = (struct lbs_private *)data;
 916         struct cmd_ctrl_node *ptempnode;
 917         struct cmd_ds_command *cmd;
 918         unsigned long flags;
 919
 920         ptempnode = priv->cur_cmd;
 921         if (ptempnode == NULL) {
 922                 lbs_deb_fw("ptempnode empty\n");
 923                 return;
 924         }
 925
 926         cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
 927         if (!cmd) {
 928                 lbs_deb_fw("cmd is NULL\n");
 929                 return;
 930         }
 931
 932         lbs_deb_fw("command_timer_fn fired, cmd %x\n", cmd->command);
 933
 934         if (!priv->fw_ready)
 935                 return;
 936
 937         spin_lock_irqsave(&priv->driver_lock, flags);
 938         priv->cur_cmd = NULL;
 939         spin_unlock_irqrestore(&priv->driver_lock, flags);
 940
 941         lbs_deb_fw("re-sending same command because of timeout\n");
 942         lbs_queue_cmd(priv, ptempnode, 0);
 943
 944         wake_up_interruptible(&priv->waitq);
 945
 946         return;
 947 }
 948
 949 static int lbs_init_adapter(struct lbs_private *priv)
 950 {
 951         size_t bufsize;
 952         int i, ret = 0;
 953
 954         /* Allocate buffer to store the BSSID list */
 955         bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
 956         priv->networks = kzalloc(bufsize, GFP_KERNEL);
 957         if (!priv->networks) {
 958                 lbs_pr_err("Out of memory allocating beacons\n");
 959                 ret = -1;
 960                 goto out;
 961         }
 962
 963         /* Initialize scan result lists */
 964         INIT_LIST_HEAD(&priv->network_free_list);
 965         INIT_LIST_HEAD(&priv->network_list);
 966         for (i = 0; i < MAX_NETWORK_COUNT; i++) {
 967                 list_add_tail(&priv->networks[i].list,
 968                               &priv->network_free_list);
 969         }
 970
 971         priv->lbs_ps_confirm_sleep.seqnum = cpu_to_le16(++priv->seqnum);
 972         priv->lbs_ps_confirm_sleep.command =
 973             cpu_to_le16(CMD_802_11_PS_MODE);
 974         priv->lbs_ps_confirm_sleep.size =
 975             cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
 976         priv->lbs_ps_confirm_sleep.action =
 977             cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
 978
 979         memset(priv->current_addr, 0xff, ETH_ALEN);
 980
 981         priv->connect_status = LBS_DISCONNECTED;
 982         priv->mesh_connect_status = LBS_DISCONNECTED;
 983         priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
 984         priv->mode = IW_MODE_INFRA;
 985         priv->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
 986         priv->currentpacketfilter = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
 987         priv->radioon = RADIO_ON;
 988         priv->auto_rate = 1;
 989         priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
 990         priv->psmode = LBS802_11POWERMODECAM;
 991         priv->psstate = PS_STATE_FULL_POWER;
 992
 993         mutex_init(&priv->lock);
 994
 995         setup_timer(&priv->command_timer, command_timer_fn,
 996                     (unsigned long)priv);
 997
 998         INIT_LIST_HEAD(&priv->cmdfreeq);
 999         INIT_LIST_HEAD(&priv->cmdpendingq);
1000
1001         spin_lock_init(&priv->driver_lock);
1002         init_waitqueue_head(&priv->cmd_pending);
1003
1004         /* Allocate the command buffers */
1005         if (lbs_allocate_cmd_buffer(priv)) {
1006                 lbs_pr_err("Out of memory allocating command buffers\n");
1007                 ret = -1;
1008         }
1009
1010 out:
1011         return ret;
1012 }
1013
1014 static void lbs_free_adapter(struct lbs_private *priv)
1015 {
1016         lbs_deb_fw("free command buffer\n");
1017         lbs_free_cmd_buffer(priv);
1018
1019         lbs_deb_fw("free command_timer\n");
1020         del_timer(&priv->command_timer);
1021
1022         lbs_deb_fw("free scan results table\n");
1023         kfree(priv->networks);
1024         priv->networks = NULL;
1025 }
1026
1027 /**
1028  * @brief This function adds the card. it will probe the
1029  * card, allocate the lbs_priv and initialize the device.
1030  *
1031  *  @param card    A pointer to card
1032  *  @return        A pointer to struct lbs_private structure
1033  */
1034 struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
1035 {
1036         struct net_device *dev = NULL;
1037         struct lbs_private *priv = NULL;
1038
1039         lbs_deb_enter(LBS_DEB_NET);
1040
1041         /* Allocate an Ethernet device and register it */
1042         dev = alloc_etherdev(sizeof(struct lbs_private));
1043         if (!dev) {
1044                 lbs_pr_err("init ethX device failed\n");
1045                 goto done;
1046         }
1047         priv = dev->priv;
1048
1049         if (lbs_init_adapter(priv)) {
1050                 lbs_pr_err("failed to initialize adapter structure.\n");
1051                 goto err_init_adapter;
1052         }
1053
1054         priv->dev = dev;
1055         priv->card = card;
1056         priv->mesh_open = 0;
1057         priv->infra_open = 0;
1058
1059         /* Setup the OS Interface to our functions */
1060         dev->open = lbs_open;
1061         dev->hard_start_xmit = lbs_hard_start_xmit;
1062         dev->stop = lbs_close;
1063         dev->set_mac_address = lbs_set_mac_address;
1064         dev->tx_timeout = lbs_tx_timeout;
1065         dev->get_stats = lbs_get_stats;
1066         dev->watchdog_timeo = 5 * HZ;
1067         dev->ethtool_ops = &lbs_ethtool_ops;
1068 #ifdef  WIRELESS_EXT
1069         dev->wireless_handlers = (struct iw_handler_def *)&lbs_handler_def;
1070 #endif
1071         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1072         dev->set_multicast_list = lbs_set_multicast_list;
1073
1074         SET_NETDEV_DEV(dev, dmdev);
1075
1076         priv->rtap_net_dev = NULL;
1077
1078         lbs_deb_thread("Starting main thread...\n");
1079         init_waitqueue_head(&priv->waitq);
1080         priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
1081         if (IS_ERR(priv->main_thread)) {
1082                 lbs_deb_thread("Error creating main thread.\n");
1083                 goto err_init_adapter;
1084         }
1085
1086         priv->work_thread = create_singlethread_workqueue("lbs_worker");
1087         INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker);
1088         INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
1089         INIT_WORK(&priv->sync_channel, lbs_sync_channel);
1090
1091         goto done;
1092
1093 err_init_adapter:
1094         lbs_free_adapter(priv);
1095         free_netdev(dev);
1096         priv = NULL;
1097
1098 done:
1099         lbs_deb_leave_args(LBS_DEB_NET, "priv %p", priv);
1100         return priv;
1101 }
1102 EXPORT_SYMBOL_GPL(lbs_add_card);
1103
1104
1105 int lbs_remove_card(struct lbs_private *priv)
1106 {
1107         struct net_device *dev = priv->dev;
1108         union iwreq_data wrqu;
1109
1110         lbs_deb_enter(LBS_DEB_MAIN);
1111
1112         lbs_remove_rtap(priv);
1113
1114         dev = priv->dev;
1115         device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
1116
1117         cancel_delayed_work(&priv->scan_work);
1118         cancel_delayed_work(&priv->assoc_work);
1119         destroy_workqueue(priv->work_thread);
1120
1121         if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
1122                 priv->psmode = LBS802_11POWERMODECAM;
1123                 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
1124         }
1125
1126         memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN);
1127         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1128         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1129
1130         /* Stop the thread servicing the interrupts */
1131         priv->surpriseremoved = 1;
1132         kthread_stop(priv->main_thread);
1133
1134         lbs_free_adapter(priv);
1135
1136         priv->dev = NULL;
1137         free_netdev(dev);
1138
1139         lbs_deb_leave(LBS_DEB_MAIN);
1140         return 0;
1141 }
1142 EXPORT_SYMBOL_GPL(lbs_remove_card);
1143
1144
1145 int lbs_start_card(struct lbs_private *priv)
1146 {
1147         struct net_device *dev = priv->dev;
1148         int ret = -1;
1149
1150         lbs_deb_enter(LBS_DEB_MAIN);
1151
1152         /* poke the firmware */
1153         ret = lbs_setup_firmware(priv);
1154         if (ret)
1155                 goto done;
1156
1157         /* init 802.11d */
1158         lbs_init_11d(priv);
1159
1160         if (register_netdev(dev)) {
1161                 lbs_pr_err("cannot register ethX device\n");
1162                 goto done;
1163         }
1164         if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
1165                 lbs_pr_err("cannot register lbs_rtap attribute\n");
1166
1167         lbs_debugfs_init_one(priv, dev);
1168
1169         lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
1170
1171         ret = 0;
1172
1173 done:
1174         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1175         return ret;
1176 }
1177 EXPORT_SYMBOL_GPL(lbs_start_card);
1178
1179
1180 int lbs_stop_card(struct lbs_private *priv)
1181 {
1182         struct net_device *dev = priv->dev;
1183         int ret = -1;
1184         struct cmd_ctrl_node *cmdnode;
1185         unsigned long flags;
1186
1187         lbs_deb_enter(LBS_DEB_MAIN);
1188
1189         netif_stop_queue(priv->dev);
1190         netif_carrier_off(priv->dev);
1191
1192         lbs_debugfs_remove_one(priv);
1193
1194         /* Flush pending command nodes */
1195         spin_lock_irqsave(&priv->driver_lock, flags);
1196         list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
1197                 cmdnode->cmdwaitqwoken = 1;
1198                 wake_up_interruptible(&cmdnode->cmdwait_q);
1199         }
1200         spin_unlock_irqrestore(&priv->driver_lock, flags);
1201
1202         unregister_netdev(dev);
1203
1204         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1205         return ret;
1206 }
1207 EXPORT_SYMBOL_GPL(lbs_stop_card);
1208
1209
1210 /**
1211  * @brief This function adds mshX interface
1212  *
1213  *  @param priv    A pointer to the struct lbs_private structure
1214  *  @return        0 if successful, -X otherwise
1215  */
1216 int lbs_add_mesh(struct lbs_private *priv, struct device *dev)
1217 {
1218         struct net_device *mesh_dev = NULL;
1219         int ret = 0;
1220
1221         lbs_deb_enter(LBS_DEB_MESH);
1222
1223         /* Allocate a virtual mesh device */
1224         if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) {
1225                 lbs_deb_mesh("init mshX device failed\n");
1226                 ret = -ENOMEM;
1227                 goto done;
1228         }
1229         mesh_dev->priv = priv;
1230         priv->mesh_dev = mesh_dev;
1231
1232         mesh_dev->open = lbs_mesh_open;
1233         mesh_dev->hard_start_xmit = lbs_hard_start_xmit;
1234         mesh_dev->stop = lbs_mesh_close;
1235         mesh_dev->get_stats = lbs_get_stats;
1236         mesh_dev->set_mac_address = lbs_set_mac_address;
1237         mesh_dev->ethtool_ops = &lbs_ethtool_ops;
1238         memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
1239                         sizeof(priv->dev->dev_addr));
1240
1241         SET_NETDEV_DEV(priv->mesh_dev, dev);
1242
1243 #ifdef  WIRELESS_EXT
1244         mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def;
1245 #endif
1246         /* Register virtual mesh interface */
1247         ret = register_netdev(mesh_dev);
1248         if (ret) {
1249                 lbs_pr_err("cannot register mshX virtual interface\n");
1250                 goto err_free;
1251         }
1252
1253         ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1254         if (ret)
1255                 goto err_unregister;
1256
1257         /* Everything successful */
1258         ret = 0;
1259         goto done;
1260
1261 err_unregister:
1262         unregister_netdev(mesh_dev);
1263
1264 err_free:
1265         free_netdev(mesh_dev);
1266
1267 done:
1268         lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
1269         return ret;
1270 }
1271 EXPORT_SYMBOL_GPL(lbs_add_mesh);
1272
1273
1274 void lbs_remove_mesh(struct lbs_private *priv)
1275 {
1276         struct net_device *mesh_dev;
1277
1278         lbs_deb_enter(LBS_DEB_MAIN);
1279
1280         if (!priv)
1281                 goto out;
1282
1283         mesh_dev = priv->mesh_dev;
1284
1285         netif_stop_queue(mesh_dev);
1286         netif_carrier_off(priv->mesh_dev);
1287
1288         sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1289         unregister_netdev(mesh_dev);
1290
1291         priv->mesh_dev = NULL ;
1292         free_netdev(mesh_dev);
1293
1294 out:
1295         lbs_deb_leave(LBS_DEB_MAIN);
1296 }
1297 EXPORT_SYMBOL_GPL(lbs_remove_mesh);
1298
1299 /**
1300  *  @brief This function finds the CFP in
1301  *  region_cfp_table based on region and band parameter.
1302  *
1303  *  @param region  The region code
1304  *  @param band    The band
1305  *  @param cfp_no  A pointer to CFP number
1306  *  @return        A pointer to CFP
1307  */
1308 struct chan_freq_power *lbs_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
1309 {
1310         int i, end;
1311
1312         lbs_deb_enter(LBS_DEB_MAIN);
1313
1314         end = ARRAY_SIZE(region_cfp_table);
1315
1316         for (i = 0; i < end ; i++) {
1317                 lbs_deb_main("region_cfp_table[i].region=%d\n",
1318                         region_cfp_table[i].region);
1319                 if (region_cfp_table[i].region == region) {
1320                         *cfp_no = region_cfp_table[i].cfp_no_BG;
1321                         lbs_deb_leave(LBS_DEB_MAIN);
1322                         return region_cfp_table[i].cfp_BG;
1323                 }
1324         }
1325
1326         lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL");
1327         return NULL;
1328 }
1329
1330 int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band)
1331 {
1332         int ret = 0;
1333         int i = 0;
1334
1335         struct chan_freq_power *cfp;
1336         int cfp_no;
1337
1338         lbs_deb_enter(LBS_DEB_MAIN);
1339
1340         memset(priv->region_channel, 0, sizeof(priv->region_channel));
1341
1342         {
1343                 cfp = lbs_get_region_cfp_table(region, band, &cfp_no);
1344                 if (cfp != NULL) {
1345                         priv->region_channel[i].nrcfp = cfp_no;
1346                         priv->region_channel[i].CFP = cfp;
1347                 } else {
1348                         lbs_deb_main("wrong region code %#x in band B/G\n",
1349                                region);
1350                         ret = -1;
1351                         goto out;
1352                 }
1353                 priv->region_channel[i].valid = 1;
1354                 priv->region_channel[i].region = region;
1355                 priv->region_channel[i].band = band;
1356                 i++;
1357         }
1358 out:
1359         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1360         return ret;
1361 }
1362
1363 /**
1364  *  @brief This function handles the interrupt. it will change PS
1365  *  state if applicable. it will wake up main_thread to handle
1366  *  the interrupt event as well.
1367  *
1368  *  @param dev     A pointer to net_device structure
1369  *  @return        n/a
1370  */
1371 void lbs_interrupt(struct net_device *dev)
1372 {
1373         struct lbs_private *priv = dev->priv;
1374
1375         lbs_deb_enter(LBS_DEB_THREAD);
1376
1377         lbs_deb_thread("lbs_interrupt: intcounter=%d\n",
1378                priv->intcounter);
1379
1380         priv->intcounter++;
1381
1382         if (priv->psstate == PS_STATE_SLEEP) {
1383                 priv->psstate = PS_STATE_AWAKE;
1384                 netif_wake_queue(dev);
1385                 if (priv->mesh_dev)
1386                         netif_wake_queue(priv->mesh_dev);
1387         }
1388
1389         wake_up_interruptible(&priv->waitq);
1390
1391         lbs_deb_leave(LBS_DEB_THREAD);
1392 }
1393 EXPORT_SYMBOL_GPL(lbs_interrupt);
1394
1395 int lbs_reset_device(struct lbs_private *priv)
1396 {
1397         int ret;
1398
1399         lbs_deb_enter(LBS_DEB_MAIN);
1400         ret = lbs_prepare_and_send_command(priv, CMD_802_11_RESET,
1401                                     CMD_ACT_HALT, 0, 0, NULL);
1402         msleep_interruptible(10);
1403
1404         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1405         return ret;
1406 }
1407 EXPORT_SYMBOL_GPL(lbs_reset_device);
1408
1409 static int __init lbs_init_module(void)
1410 {
1411         lbs_deb_enter(LBS_DEB_MAIN);
1412         lbs_debugfs_init();
1413         lbs_deb_leave(LBS_DEB_MAIN);
1414         return 0;
1415 }
1416
1417 static void __exit lbs_exit_module(void)
1418 {
1419         lbs_deb_enter(LBS_DEB_MAIN);
1420
1421         lbs_debugfs_remove();
1422
1423         lbs_deb_leave(LBS_DEB_MAIN);
1424 }
1425
1426 /*
1427  * rtap interface support fuctions
1428  */
1429
1430 static int lbs_rtap_open(struct net_device *dev)
1431 {
1432         netif_carrier_off(dev);
1433         netif_stop_queue(dev);
1434         return 0;
1435 }
1436
1437 static int lbs_rtap_stop(struct net_device *dev)
1438 {
1439         return 0;
1440 }
1441
1442 static int lbs_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1443 {
1444         netif_stop_queue(dev);
1445         return -EOPNOTSUPP;
1446 }
1447
1448 static struct net_device_stats *lbs_rtap_get_stats(struct net_device *dev)
1449 {
1450         struct lbs_private *priv = dev->priv;
1451         return &priv->stats;
1452 }
1453
1454
1455 void lbs_remove_rtap(struct lbs_private *priv)
1456 {
1457         if (priv->rtap_net_dev == NULL)
1458                 return;
1459         unregister_netdev(priv->rtap_net_dev);
1460         free_netdev(priv->rtap_net_dev);
1461         priv->rtap_net_dev = NULL;
1462 }
1463
1464 int lbs_add_rtap(struct lbs_private *priv)
1465 {
1466         int rc = 0;
1467         struct net_device *rtap_dev;
1468
1469         if (priv->rtap_net_dev)
1470                 return -EPERM;
1471
1472         rtap_dev = alloc_netdev(0, "rtap%d", ether_setup);
1473         if (rtap_dev == NULL)
1474                 return -ENOMEM;
1475
1476         memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN);
1477         rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP;
1478         rtap_dev->open = lbs_rtap_open;
1479         rtap_dev->stop = lbs_rtap_stop;
1480         rtap_dev->get_stats = lbs_rtap_get_stats;
1481         rtap_dev->hard_start_xmit = lbs_rtap_hard_start_xmit;
1482         rtap_dev->set_multicast_list = lbs_set_multicast_list;
1483         rtap_dev->priv = priv;
1484
1485         rc = register_netdev(rtap_dev);
1486         if (rc) {
1487                 free_netdev(rtap_dev);
1488                 return rc;
1489         }
1490         priv->rtap_net_dev = rtap_dev;
1491
1492         return 0;
1493 }
1494
1495
1496 module_init(lbs_init_module);
1497 module_exit(lbs_exit_module);
1498
1499 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1500 MODULE_AUTHOR("Marvell International Ltd.");
1501 MODULE_LICENSE("GPL");