package/libertas/src/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/etherdevice.h>
  10 #include <linux/netdevice.h>
  11 #include <linux/if_arp.h>
  12 #include <linux/kthread.h>
  13
  14 #include <net/iw_handler.h>
  15 #include <net/ieee80211.h>
  16
  17 #include "host.h"
  18 #include "decl.h"
  19 #include "dev.h"
  20 #include "wext.h"
  21 #include "debugfs.h"
  22 #include "assoc.h"
  23 #include "join.h"
  24 #include "cmd.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 lbs_private *priv = to_net_dev(dev)->priv;
 220         struct cmd_ds_mesh_access mesh_access;
 221         int ret;
 222
 223         memset(&mesh_access, 0, sizeof(mesh_access));
 224
 225         ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_ANYCAST, &mesh_access);
 226         if (ret)
 227                 return ret;
 228
 229         return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0]));
 230 }
 231
 232 /**
 233  * @brief Set function for sysfs attribute anycast_mask
 234  */
 235 static ssize_t lbs_anycast_set(struct device *dev,
 236                 struct device_attribute *attr, const char * buf, size_t count)
 237 {
 238         struct lbs_private *priv = to_net_dev(dev)->priv;
 239         struct cmd_ds_mesh_access mesh_access;
 240         uint32_t datum;
 241         int ret;
 242
 243         memset(&mesh_access, 0, sizeof(mesh_access));
 244         sscanf(buf, "%x", &datum);
 245         mesh_access.data[0] = cpu_to_le32(datum);
 246
 247         ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_ANYCAST, &mesh_access);
 248         if (ret)
 249                 return ret;
 250
 251         return strlen(buf);
 252 }
 253
 254 static int lbs_add_rtap(struct lbs_private *priv);
 255 static void lbs_remove_rtap(struct lbs_private *priv);
 256 static int lbs_add_mesh(struct lbs_private *priv);
 257 static void lbs_remove_mesh(struct lbs_private *priv);
 258
 259
 260 /**
 261  * Get function for sysfs attribute rtap
 262  */
 263 static ssize_t lbs_rtap_get(struct device *dev,
 264                 struct device_attribute *attr, char * buf)
 265 {
 266         struct lbs_private *priv = to_net_dev(dev)->priv;
 267         return snprintf(buf, 5, "0x%X\n", priv->monitormode);
 268 }
 269
 270 /**
 271  *  Set function for sysfs attribute rtap
 272  */
 273 static ssize_t lbs_rtap_set(struct device *dev,
 274                 struct device_attribute *attr, const char * buf, size_t count)
 275 {
 276         int monitor_mode;
 277         struct lbs_private *priv = to_net_dev(dev)->priv;
 278
 279         sscanf(buf, "%x", &monitor_mode);
 280         if (monitor_mode != LBS_MONITOR_OFF) {
 281                 if(priv->monitormode == monitor_mode)
 282                         return strlen(buf);
 283                 if (priv->monitormode == LBS_MONITOR_OFF) {
 284                         if (priv->infra_open || priv->mesh_open)
 285                                 return -EBUSY;
 286                         if (priv->mode == IW_MODE_INFRA)
 287                                 lbs_send_deauthentication(priv);
 288                         else if (priv->mode == IW_MODE_ADHOC)
 289                                 lbs_stop_adhoc_network(priv);
 290                         lbs_add_rtap(priv);
 291                 }
 292                 priv->monitormode = monitor_mode;
 293         }
 294
 295         else {
 296                 if (priv->monitormode == LBS_MONITOR_OFF)
 297                         return strlen(buf);
 298                 priv->monitormode = LBS_MONITOR_OFF;
 299                 lbs_remove_rtap(priv);
 300
 301                 if (priv->currenttxskb) {
 302                         dev_kfree_skb_any(priv->currenttxskb);
 303                         priv->currenttxskb = NULL;
 304                 }
 305
 306                 /* Wake queues, command thread, etc. */
 307                 lbs_host_to_card_done(priv);
 308         }
 309
 310         lbs_prepare_and_send_command(priv,
 311                         CMD_802_11_MONITOR_MODE, CMD_ACT_SET,
 312                         CMD_OPTION_WAITFORRSP, 0, &priv->monitormode);
 313         return strlen(buf);
 314 }
 315
 316 /**
 317  * lbs_rtap attribute to be exported per ethX interface
 318  * through sysfs (/sys/class/net/ethX/lbs_rtap)
 319  */
 320 static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get, lbs_rtap_set );
 321
 322 /**
 323  * Get function for sysfs attribute mesh
 324  */
 325 static ssize_t lbs_mesh_get(struct device *dev,
 326                 struct device_attribute *attr, char * buf)
 327 {
 328         struct lbs_private *priv = to_net_dev(dev)->priv;
 329         return snprintf(buf, 5, "0x%X\n", !!priv->mesh_dev);
 330 }
 331
 332 /**
 333  *  Set function for sysfs attribute mesh
 334  */
 335 static ssize_t lbs_mesh_set(struct device *dev,
 336                 struct device_attribute *attr, const char * buf, size_t count)
 337 {
 338         struct lbs_private *priv = to_net_dev(dev)->priv;
 339         int enable;
 340         int ret;
 341
 342         sscanf(buf, "%x", &enable);
 343         enable = !!enable;
 344         if (enable == !!priv->mesh_dev)
 345                 return count;
 346
 347         ret = lbs_mesh_config(priv, enable, priv->curbssparams.channel);
 348         if (ret)
 349                 return ret;
 350
 351         if (enable)
 352                 lbs_add_mesh(priv);
 353         else
 354                 lbs_remove_mesh(priv);
 355
 356         return count;
 357 }
 358
 359 /**
 360  * lbs_mesh attribute to be exported per ethX interface
 361  * through sysfs (/sys/class/net/ethX/lbs_mesh)
 362  */
 363 static DEVICE_ATTR(lbs_mesh, 0644, lbs_mesh_get, lbs_mesh_set);
 364
 365 /**
 366  * anycast_mask attribute to be exported per mshX interface
 367  * through sysfs (/sys/class/net/mshX/anycast_mask)
 368  */
 369 static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set);
 370
 371 static struct attribute *lbs_mesh_sysfs_entries[] = {
 372         &dev_attr_anycast_mask.attr,
 373         NULL,
 374 };
 375
 376 static struct attribute_group lbs_mesh_attr_group = {
 377         .attrs = lbs_mesh_sysfs_entries,
 378 };
 379
 380 /**
 381  *  @brief This function opens the ethX or mshX interface
 382  *
 383  *  @param dev     A pointer to net_device structure
 384  *  @return        0 or -EBUSY if monitor mode active
 385  */
 386 static int lbs_dev_open(struct net_device *dev)
 387 {
 388         struct lbs_private *priv = (struct lbs_private *) dev->priv ;
 389         int ret = 0;
 390
 391         spin_lock_irq(&priv->driver_lock);
 392
 393         if (priv->monitormode != LBS_MONITOR_OFF) {
 394                 ret = -EBUSY;
 395                 goto out;
 396         }
 397
 398         if (dev == priv->mesh_dev) {
 399                 priv->mesh_open = 1;
 400                 priv->mesh_connect_status = LBS_CONNECTED;
 401                 netif_carrier_on(dev);
 402         } else {
 403                 priv->infra_open = 1;
 404
 405                 if (priv->connect_status == LBS_CONNECTED)
 406                         netif_carrier_on(dev);
 407                 else
 408                         netif_carrier_off(dev);
 409         }
 410
 411         if (!priv->tx_pending_len)
 412                 netif_wake_queue(dev);
 413  out:
 414
 415         spin_unlock_irq(&priv->driver_lock);
 416         return ret;
 417 }
 418
 419 /**
 420  *  @brief This function closes the mshX interface
 421  *
 422  *  @param dev     A pointer to net_device structure
 423  *  @return        0
 424  */
 425 static int lbs_mesh_stop(struct net_device *dev)
 426 {
 427         struct lbs_private *priv = (struct lbs_private *) (dev->priv);
 428
 429         spin_lock_irq(&priv->driver_lock);
 430
 431         priv->mesh_open = 0;
 432         priv->mesh_connect_status = LBS_DISCONNECTED;
 433
 434         netif_stop_queue(dev);
 435         netif_carrier_off(dev);
 436
 437         spin_unlock_irq(&priv->driver_lock);
 438         return 0;
 439 }
 440
 441 /**
 442  *  @brief This function closes the ethX interface
 443  *
 444  *  @param dev     A pointer to net_device structure
 445  *  @return        0
 446  */
 447 static int lbs_eth_stop(struct net_device *dev)
 448 {
 449         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 450
 451         spin_lock_irq(&priv->driver_lock);
 452
 453         priv->infra_open = 0;
 454
 455         netif_stop_queue(dev);
 456
 457         spin_unlock_irq(&priv->driver_lock);
 458         return 0;
 459 }
 460
 461 static void lbs_tx_timeout(struct net_device *dev)
 462 {
 463         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 464
 465         lbs_deb_enter(LBS_DEB_TX);
 466
 467         lbs_pr_err("tx watch dog timeout\n");
 468
 469         dev->trans_start = jiffies;
 470
 471         if (priv->currenttxskb) {
 472                 priv->eventcause = 0x01000000;
 473                 lbs_send_tx_feedback(priv);
 474         }
 475         /* XX: Shouldn't we also call into the hw-specific driver
 476            to kick it somehow? */
 477         lbs_host_to_card_done(priv);
 478
 479         /* More often than not, this actually happens because the
 480            firmware has crapped itself -- rather than just a very
 481            busy medium. So send a harmless command, and if/when
 482            _that_ times out, we'll kick it in the head. */
 483         lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
 484                                      0, 0, NULL);
 485
 486         lbs_deb_leave(LBS_DEB_TX);
 487 }
 488
 489 void lbs_host_to_card_done(struct lbs_private *priv)
 490 {
 491         unsigned long flags;
 492
 493         spin_lock_irqsave(&priv->driver_lock, flags);
 494
 495         priv->dnld_sent = DNLD_RES_RECEIVED;
 496
 497         /* Wake main thread if commands are pending */
 498         if (!priv->cur_cmd || priv->tx_pending_len > 0)
 499                 wake_up_interruptible(&priv->waitq);
 500
 501         spin_unlock_irqrestore(&priv->driver_lock, flags);
 502 }
 503 EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
 504
 505 /**
 506  *  @brief This function returns the network statistics
 507  *
 508  *  @param dev     A pointer to struct lbs_private structure
 509  *  @return        A pointer to net_device_stats structure
 510  */
 511 static struct net_device_stats *lbs_get_stats(struct net_device *dev)
 512 {
 513         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 514
 515         return &priv->stats;
 516 }
 517
 518 static int lbs_set_mac_address(struct net_device *dev, void *addr)
 519 {
 520         int ret = 0;
 521         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 522         struct sockaddr *phwaddr = addr;
 523
 524         lbs_deb_enter(LBS_DEB_NET);
 525
 526         /* In case it was called from the mesh device */
 527         dev = priv->dev ;
 528
 529         memset(priv->current_addr, 0, ETH_ALEN);
 530
 531         /* dev->dev_addr is 8 bytes */
 532         lbs_deb_hex(LBS_DEB_NET, "dev->dev_addr", dev->dev_addr, ETH_ALEN);
 533
 534         lbs_deb_hex(LBS_DEB_NET, "addr", phwaddr->sa_data, ETH_ALEN);
 535         memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN);
 536
 537         ret = lbs_prepare_and_send_command(priv, CMD_802_11_MAC_ADDRESS,
 538                                     CMD_ACT_SET,
 539                                     CMD_OPTION_WAITFORRSP, 0, NULL);
 540
 541         if (ret) {
 542                 lbs_deb_net("set MAC address failed\n");
 543                 ret = -1;
 544                 goto done;
 545         }
 546
 547         lbs_deb_hex(LBS_DEB_NET, "priv->macaddr", priv->current_addr, ETH_ALEN);
 548         memcpy(dev->dev_addr, priv->current_addr, ETH_ALEN);
 549         if (priv->mesh_dev)
 550                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 551
 552 done:
 553         lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
 554         return ret;
 555 }
 556
 557 static int lbs_copy_multicast_address(struct lbs_private *priv,
 558                                      struct net_device *dev)
 559 {
 560         int i = 0;
 561         struct dev_mc_list *mcptr = dev->mc_list;
 562
 563         for (i = 0; i < dev->mc_count; i++) {
 564                 memcpy(&priv->multicastlist[i], mcptr->dmi_addr, ETH_ALEN);
 565                 mcptr = mcptr->next;
 566         }
 567
 568         return i;
 569
 570 }
 571
 572 static void lbs_set_multicast_list(struct net_device *dev)
 573 {
 574         struct lbs_private *priv = dev->priv;
 575         int oldpacketfilter;
 576         DECLARE_MAC_BUF(mac);
 577
 578         lbs_deb_enter(LBS_DEB_NET);
 579
 580         oldpacketfilter = priv->currentpacketfilter;
 581
 582         if (dev->flags & IFF_PROMISC) {
 583                 lbs_deb_net("enable promiscuous mode\n");
 584                 priv->currentpacketfilter |=
 585                     CMD_ACT_MAC_PROMISCUOUS_ENABLE;
 586                 priv->currentpacketfilter &=
 587                     ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
 588                       CMD_ACT_MAC_MULTICAST_ENABLE);
 589         } else {
 590                 /* Multicast */
 591                 priv->currentpacketfilter &=
 592                     ~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
 593
 594                 if (dev->flags & IFF_ALLMULTI || dev->mc_count >
 595                     MRVDRV_MAX_MULTICAST_LIST_SIZE) {
 596                         lbs_deb_net( "enabling all multicast\n");
 597                         priv->currentpacketfilter |=
 598                             CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
 599                         priv->currentpacketfilter &=
 600                             ~CMD_ACT_MAC_MULTICAST_ENABLE;
 601                 } else {
 602                         priv->currentpacketfilter &=
 603                             ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
 604
 605                         if (!dev->mc_count) {
 606                                 lbs_deb_net("no multicast addresses, "
 607                                        "disabling multicast\n");
 608                                 priv->currentpacketfilter &=
 609                                     ~CMD_ACT_MAC_MULTICAST_ENABLE;
 610                         } else {
 611                                 int i;
 612
 613                                 priv->currentpacketfilter |=
 614                                     CMD_ACT_MAC_MULTICAST_ENABLE;
 615
 616                                 priv->nr_of_multicastmacaddr =
 617                                     lbs_copy_multicast_address(priv, dev);
 618
 619                                 lbs_deb_net("multicast addresses: %d\n",
 620                                        dev->mc_count);
 621
 622                                 for (i = 0; i < dev->mc_count; i++) {
 623                                         lbs_deb_net("Multicast address %d:%s\n",
 624                                                i, print_mac(mac,
 625                                                priv->multicastlist[i]));
 626                                 }
 627                                 /* send multicast addresses to firmware */
 628                                 lbs_prepare_and_send_command(priv,
 629                                                       CMD_MAC_MULTICAST_ADR,
 630                                                       CMD_ACT_SET, 0, 0,
 631                                                       NULL);
 632                         }
 633                 }
 634         }
 635
 636         if (priv->currentpacketfilter != oldpacketfilter) {
 637                 lbs_set_mac_packet_filter(priv);
 638         }
 639
 640         lbs_deb_leave(LBS_DEB_NET);
 641 }
 642
 643 /**
 644  *  @brief This function handles the major jobs in the LBS driver.
 645  *  It handles all events generated by firmware, RX data received
 646  *  from firmware and TX data sent from kernel.
 647  *
 648  *  @param data    A pointer to lbs_thread structure
 649  *  @return        0
 650  */
 651 static int lbs_thread(void *data)
 652 {
 653         struct net_device *dev = data;
 654         struct lbs_private *priv = dev->priv;
 655         wait_queue_t wait;
 656         u8 ireg = 0;
 657
 658         lbs_deb_enter(LBS_DEB_THREAD);
 659
 660         init_waitqueue_entry(&wait, current);
 661
 662         for (;;) {
 663                 int shouldsleep;
 664
 665                 lbs_deb_thread( "main-thread 111: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 666                                 priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 667
 668                 add_wait_queue(&priv->waitq, &wait);
 669                 set_current_state(TASK_INTERRUPTIBLE);
 670                 spin_lock_irq(&priv->driver_lock);
 671
 672                 if (kthread_should_stop())
 673                         shouldsleep = 0;        /* Bye */
 674                 else if (priv->surpriseremoved)
 675                         shouldsleep = 1;        /* We need to wait until we're _told_ to die */
 676                 else if (priv->psstate == PS_STATE_SLEEP)
 677                         shouldsleep = 1;        /* Sleep mode. Nothing we can do till it wakes */
 678                 else if (priv->intcounter)
 679                         shouldsleep = 0;        /* Interrupt pending. Deal with it now */
 680                 else if (priv->cmd_timed_out)
 681                         shouldsleep = 0;        /* Command timed out. Recover */
 682                 else if (!priv->fw_ready)
 683                         shouldsleep = 1;        /* Firmware not ready. We're waiting for it */
 684                 else if (priv->dnld_sent)
 685                         shouldsleep = 1;        /* Something is en route to the device already */
 686                 else if (priv->tx_pending_len > 0)
 687                         shouldsleep = 0;        /* We've a packet to send */
 688                 else if (priv->cur_cmd)
 689                         shouldsleep = 1;        /* Can't send a command; one already running */
 690                 else if (!list_empty(&priv->cmdpendingq))
 691                         shouldsleep = 0;        /* We have a command to send */
 692                 else
 693                         shouldsleep = 1;        /* No command */
 694
 695                 if (shouldsleep) {
 696                         lbs_deb_thread("main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
 697                                        priv->connect_status, priv->intcounter,
 698                                        priv->psmode, priv->psstate);
 699                         spin_unlock_irq(&priv->driver_lock);
 700                         schedule();
 701                 } else
 702                         spin_unlock_irq(&priv->driver_lock);
 703
 704                 lbs_deb_thread("main-thread 222 (waking up): intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 705                                priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 706
 707                 set_current_state(TASK_RUNNING);
 708                 remove_wait_queue(&priv->waitq, &wait);
 709
 710                 lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 711                                priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 712
 713                 if (kthread_should_stop()) {
 714                         lbs_deb_thread("main-thread: break from main thread\n");
 715                         break;
 716                 }
 717
 718                 if (priv->surpriseremoved) {
 719                         lbs_deb_thread("adapter removed; waiting to die...\n");
 720                         continue;
 721                 }
 722
 723                 spin_lock_irq(&priv->driver_lock);
 724
 725                 if (priv->intcounter) {
 726                         u8 int_status;
 727
 728                         priv->intcounter = 0;
 729                         int_status = priv->hw_get_int_status(priv, &ireg);
 730
 731                         if (int_status) {
 732                                 lbs_deb_thread("main-thread: reading HOST_INT_STATUS_REG failed\n");
 733                                 spin_unlock_irq(&priv->driver_lock);
 734                                 continue;
 735                         }
 736                         priv->hisregcpy |= ireg;
 737                 }
 738
 739                 lbs_deb_thread("main-thread 444: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 740                                priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 741
 742                 /* command response? */
 743                 if (priv->hisregcpy & MRVDRV_CMD_UPLD_RDY) {
 744                         lbs_deb_thread("main-thread: cmd response ready\n");
 745
 746                         priv->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY;
 747                         spin_unlock_irq(&priv->driver_lock);
 748                         lbs_process_rx_command(priv);
 749                         spin_lock_irq(&priv->driver_lock);
 750                 }
 751
 752                 if (priv->cmd_timed_out && priv->cur_cmd) {
 753                         struct cmd_ctrl_node *cmdnode = priv->cur_cmd;
 754
 755                         if (++priv->nr_retries > 10) {
 756                                 lbs_pr_info("Excessive timeouts submitting command %x\n",
 757                                             le16_to_cpu(cmdnode->cmdbuf->command));
 758                                 lbs_complete_command(priv, cmdnode, -ETIMEDOUT);
 759                                 priv->nr_retries = 0;
 760                         } else {
 761                                 priv->cur_cmd = NULL;
 762                                 lbs_pr_info("requeueing command %x due to timeout (#%d)\n",
 763                                             le16_to_cpu(cmdnode->cmdbuf->command), priv->nr_retries);
 764
 765                                 /* Stick it back at the _top_ of the pending queue
 766                                    for immediate resubmission */
 767                                 list_add(&cmdnode->list, &priv->cmdpendingq);
 768                         }
 769                 }
 770                 priv->cmd_timed_out = 0;
 771
 772                 /* Any Card Event */
 773                 if (priv->hisregcpy & MRVDRV_CARDEVENT) {
 774                         lbs_deb_thread("main-thread: Card Event Activity\n");
 775
 776                         priv->hisregcpy &= ~MRVDRV_CARDEVENT;
 777
 778                         if (priv->hw_read_event_cause(priv)) {
 779                                 lbs_pr_alert("main-thread: hw_read_event_cause failed\n");
 780                                 spin_unlock_irq(&priv->driver_lock);
 781                                 continue;
 782                         }
 783                         spin_unlock_irq(&priv->driver_lock);
 784                         lbs_process_event(priv);
 785                 } else
 786                         spin_unlock_irq(&priv->driver_lock);
 787
 788                 if (!priv->fw_ready)
 789                         continue;
 790
 791                 /* Check if we need to confirm Sleep Request received previously */
 792                 if (priv->psstate == PS_STATE_PRE_SLEEP &&
 793                     !priv->dnld_sent && !priv->cur_cmd) {
 794                         if (priv->connect_status == LBS_CONNECTED) {
 795                                 lbs_deb_thread("main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p dnld_sent=%d cur_cmd=%p, confirm now\n",
 796                                                priv->intcounter, priv->currenttxskb, priv->dnld_sent, priv->cur_cmd);
 797
 798                                 lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
 799                         } else {
 800                                 /* workaround for firmware sending
 801                                  * deauth/linkloss event immediately
 802                                  * after sleep request; remove this
 803                                  * after firmware fixes it
 804                                  */
 805                                 priv->psstate = PS_STATE_AWAKE;
 806                                 lbs_pr_alert("main-thread: ignore PS_SleepConfirm in non-connected state\n");
 807                         }
 808                 }
 809
 810                 /* The PS state is changed during processing of Sleep Request
 811                  * event above
 812                  */
 813                 if ((priv->psstate == PS_STATE_SLEEP) ||
 814                     (priv->psstate == PS_STATE_PRE_SLEEP))
 815                         continue;
 816
 817                 /* Execute the next command */
 818                 if (!priv->dnld_sent && !priv->cur_cmd)
 819                         lbs_execute_next_command(priv);
 820
 821                 /* Wake-up command waiters which can't sleep in
 822                  * lbs_prepare_and_send_command
 823                  */
 824                 if (!list_empty(&priv->cmdpendingq))
 825                         wake_up_all(&priv->cmd_pending);
 826
 827                 spin_lock_irq(&priv->driver_lock);
 828                 if (!priv->dnld_sent && priv->tx_pending_len > 0) {
 829                         int ret = priv->hw_host_to_card(priv, MVMS_DAT,
 830                                                         priv->tx_pending_buf,
 831                                                         priv->tx_pending_len);
 832                         if (ret) {
 833                                 lbs_deb_tx("host_to_card failed %d\n", ret);
 834                                 priv->dnld_sent = DNLD_RES_RECEIVED;
 835                         }
 836                         priv->tx_pending_len = 0;
 837                         if (!priv->currenttxskb) {
 838                                 /* We can wake the queues immediately if we aren't
 839                                    waiting for TX feedback */
 840                                 if (priv->connect_status == LBS_CONNECTED)
 841                                         netif_wake_queue(priv->dev);
 842                                 if (priv->mesh_dev &&
 843                                     priv->mesh_connect_status == LBS_CONNECTED)
 844                                         netif_wake_queue(priv->mesh_dev);
 845                         }
 846                 }
 847                 spin_unlock_irq(&priv->driver_lock);
 848         }
 849
 850         del_timer(&priv->command_timer);
 851         wake_up_all(&priv->cmd_pending);
 852
 853         lbs_deb_leave(LBS_DEB_THREAD);
 854         return 0;
 855 }
 856
 857 static int lbs_suspend_callback(struct lbs_private *priv, unsigned long dummy,
 858                                 struct cmd_header *cmd)
 859 {
 860         lbs_deb_fw("HOST_SLEEP_ACTIVATE succeeded\n");
 861
 862         netif_device_detach(priv->dev);
 863         if (priv->mesh_dev)
 864                 netif_device_detach(priv->mesh_dev);
 865
 866         priv->fw_ready = 0;
 867         return 0;
 868 }
 869
 870
 871 int lbs_suspend(struct lbs_private *priv)
 872 {
 873         struct cmd_header cmd;
 874         int ret;
 875
 876         if (priv->wol_criteria == 0xffffffff) {
 877                 lbs_pr_info("Suspend attempt without configuring wake params!\n");
 878                 return -EINVAL;
 879         }
 880
 881         memset(&cmd, 0, sizeof(cmd));
 882
 883         ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_ACTIVATE, &cmd,
 884                         sizeof(cmd), lbs_suspend_callback, 0);
 885         if (ret)
 886                 lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret);
 887
 888         return ret;
 889 }
 890 EXPORT_SYMBOL_GPL(lbs_suspend);
 891
 892 int lbs_resume(struct lbs_private *priv)
 893 {
 894         priv->fw_ready = 1;
 895
 896         /* Firmware doesn't seem to give us RX packets any more
 897            until we send it some command. Might as well update */
 898         lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
 899                                      0, 0, NULL);
 900
 901         netif_device_attach(priv->dev);
 902         if (priv->mesh_dev)
 903                 netif_device_attach(priv->mesh_dev);
 904
 905         return 0;
 906 }
 907 EXPORT_SYMBOL_GPL(lbs_resume);
 908
 909 /**
 910  *  @brief This function downloads firmware image, gets
 911  *  HW spec from firmware and set basic parameters to
 912  *  firmware.
 913  *
 914  *  @param priv    A pointer to struct lbs_private structure
 915  *  @return        0 or -1
 916  */
 917 static int lbs_setup_firmware(struct lbs_private *priv)
 918 {
 919         int ret = -1;
 920
 921         lbs_deb_enter(LBS_DEB_FW);
 922
 923         /*
 924          * Read MAC address from HW
 925          */
 926         memset(priv->current_addr, 0xff, ETH_ALEN);
 927         ret = lbs_update_hw_spec(priv);
 928         if (ret) {
 929                 ret = -1;
 930                 goto done;
 931         }
 932
 933         lbs_set_mac_packet_filter(priv);
 934
 935         ret = lbs_get_data_rate(priv);
 936         if (ret < 0) {
 937                 ret = -1;
 938                 goto done;
 939         }
 940
 941         ret = 0;
 942 done:
 943         lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
 944         return ret;
 945 }
 946
 947 /**
 948  *  This function handles the timeout of command sending.
 949  *  It will re-send the same command again.
 950  */
 951 static void command_timer_fn(unsigned long data)
 952 {
 953         struct lbs_private *priv = (struct lbs_private *)data;
 954         unsigned long flags;
 955
 956         spin_lock_irqsave(&priv->driver_lock, flags);
 957
 958         if (!priv->cur_cmd) {
 959                 lbs_pr_info("Command timer expired; no pending command\n");
 960                 goto out;
 961         }
 962
 963         lbs_pr_info("Command %x timed out\n", le16_to_cpu(priv->cur_cmd->cmdbuf->command));
 964
 965         priv->cmd_timed_out = 1;
 966         wake_up_interruptible(&priv->waitq);
 967  out:
 968         spin_unlock_irqrestore(&priv->driver_lock, flags);
 969 }
 970
 971 static int lbs_init_adapter(struct lbs_private *priv)
 972 {
 973         size_t bufsize;
 974         int i, ret = 0;
 975
 976         /* Allocate buffer to store the BSSID list */
 977         bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
 978         priv->networks = kzalloc(bufsize, GFP_KERNEL);
 979         if (!priv->networks) {
 980                 lbs_pr_err("Out of memory allocating beacons\n");
 981                 ret = -1;
 982                 goto out;
 983         }
 984
 985         /* Initialize scan result lists */
 986         INIT_LIST_HEAD(&priv->network_free_list);
 987         INIT_LIST_HEAD(&priv->network_list);
 988         for (i = 0; i < MAX_NETWORK_COUNT; i++) {
 989                 list_add_tail(&priv->networks[i].list,
 990                               &priv->network_free_list);
 991         }
 992
 993         priv->lbs_ps_confirm_sleep.seqnum = cpu_to_le16(++priv->seqnum);
 994         priv->lbs_ps_confirm_sleep.command =
 995             cpu_to_le16(CMD_802_11_PS_MODE);
 996         priv->lbs_ps_confirm_sleep.size =
 997             cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
 998         priv->lbs_ps_confirm_sleep.action =
 999             cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
1000
1001         memset(priv->current_addr, 0xff, ETH_ALEN);
1002
1003         priv->connect_status = LBS_DISCONNECTED;
1004         priv->mesh_connect_status = LBS_DISCONNECTED;
1005         priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1006         priv->mode = IW_MODE_INFRA;
1007         priv->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
1008         priv->currentpacketfilter = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
1009         priv->radioon = RADIO_ON;
1010         priv->auto_rate = 1;
1011         priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
1012         priv->psmode = LBS802_11POWERMODECAM;
1013         priv->psstate = PS_STATE_FULL_POWER;
1014
1015         mutex_init(&priv->lock);
1016
1017         setup_timer(&priv->command_timer, command_timer_fn,
1018                     (unsigned long)priv);
1019
1020         INIT_LIST_HEAD(&priv->cmdfreeq);
1021         INIT_LIST_HEAD(&priv->cmdpendingq);
1022
1023         spin_lock_init(&priv->driver_lock);
1024         init_waitqueue_head(&priv->cmd_pending);
1025
1026         /* Allocate the command buffers */
1027         if (lbs_allocate_cmd_buffer(priv)) {
1028                 lbs_pr_err("Out of memory allocating command buffers\n");
1029                 ret = -1;
1030         }
1031
1032 out:
1033         return ret;
1034 }
1035
1036 static void lbs_free_adapter(struct lbs_private *priv)
1037 {
1038         lbs_deb_fw("free command buffer\n");
1039         lbs_free_cmd_buffer(priv);
1040
1041         lbs_deb_fw("free command_timer\n");
1042         del_timer(&priv->command_timer);
1043
1044         lbs_deb_fw("free scan results table\n");
1045         kfree(priv->networks);
1046         priv->networks = NULL;
1047 }
1048
1049 /**
1050  * @brief This function adds the card. it will probe the
1051  * card, allocate the lbs_priv and initialize the device.
1052  *
1053  *  @param card    A pointer to card
1054  *  @return        A pointer to struct lbs_private structure
1055  */
1056 struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
1057 {
1058         struct net_device *dev = NULL;
1059         struct lbs_private *priv = NULL;
1060
1061         lbs_deb_enter(LBS_DEB_NET);
1062
1063         /* Allocate an Ethernet device and register it */
1064         dev = alloc_etherdev(sizeof(struct lbs_private));
1065         if (!dev) {
1066                 lbs_pr_err("init ethX device failed\n");
1067                 goto done;
1068         }
1069         priv = dev->priv;
1070
1071         if (lbs_init_adapter(priv)) {
1072                 lbs_pr_err("failed to initialize adapter structure.\n");
1073                 goto err_init_adapter;
1074         }
1075
1076         priv->dev = dev;
1077         priv->card = card;
1078         priv->mesh_open = 0;
1079         priv->infra_open = 0;
1080
1081         /* Setup the OS Interface to our functions */
1082         dev->open = lbs_dev_open;
1083         dev->hard_start_xmit = lbs_hard_start_xmit;
1084         dev->stop = lbs_eth_stop;
1085         dev->set_mac_address = lbs_set_mac_address;
1086         dev->tx_timeout = lbs_tx_timeout;
1087         dev->get_stats = lbs_get_stats;
1088         dev->watchdog_timeo = 5 * HZ;
1089         dev->ethtool_ops = &lbs_ethtool_ops;
1090 #ifdef  WIRELESS_EXT
1091         dev->wireless_handlers = (struct iw_handler_def *)&lbs_handler_def;
1092 #endif
1093         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1094         dev->set_multicast_list = lbs_set_multicast_list;
1095
1096         SET_NETDEV_DEV(dev, dmdev);
1097
1098         priv->rtap_net_dev = NULL;
1099
1100         lbs_deb_thread("Starting main thread...\n");
1101         init_waitqueue_head(&priv->waitq);
1102         priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
1103         if (IS_ERR(priv->main_thread)) {
1104                 lbs_deb_thread("Error creating main thread.\n");
1105                 goto err_init_adapter;
1106         }
1107
1108         priv->work_thread = create_singlethread_workqueue("lbs_worker");
1109         INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker);
1110         INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
1111         INIT_WORK(&priv->sync_channel, lbs_sync_channel);
1112
1113         sprintf(priv->mesh_ssid, "mesh");
1114         priv->mesh_ssid_len = 4;
1115
1116         priv->wol_criteria = 0xffffffff;
1117         priv->wol_gpio = 0xff;
1118
1119         goto done;
1120
1121 err_init_adapter:
1122         lbs_free_adapter(priv);
1123         free_netdev(dev);
1124         priv = NULL;
1125
1126 done:
1127         lbs_deb_leave_args(LBS_DEB_NET, "priv %p", priv);
1128         return priv;
1129 }
1130 EXPORT_SYMBOL_GPL(lbs_add_card);
1131
1132
1133 int lbs_remove_card(struct lbs_private *priv)
1134 {
1135         struct net_device *dev = priv->dev;
1136         union iwreq_data wrqu;
1137
1138         lbs_deb_enter(LBS_DEB_MAIN);
1139
1140         lbs_remove_mesh(priv);
1141         lbs_remove_rtap(priv);
1142
1143         dev = priv->dev;
1144
1145         cancel_delayed_work(&priv->scan_work);
1146         cancel_delayed_work(&priv->assoc_work);
1147         destroy_workqueue(priv->work_thread);
1148
1149         if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
1150                 priv->psmode = LBS802_11POWERMODECAM;
1151                 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
1152         }
1153
1154         memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN);
1155         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1156         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1157
1158         /* Stop the thread servicing the interrupts */
1159         priv->surpriseremoved = 1;
1160         kthread_stop(priv->main_thread);
1161
1162         lbs_free_adapter(priv);
1163
1164         priv->dev = NULL;
1165         free_netdev(dev);
1166
1167         lbs_deb_leave(LBS_DEB_MAIN);
1168         return 0;
1169 }
1170 EXPORT_SYMBOL_GPL(lbs_remove_card);
1171
1172
1173 int lbs_start_card(struct lbs_private *priv)
1174 {
1175         struct net_device *dev = priv->dev;
1176         int ret = -1;
1177
1178         lbs_deb_enter(LBS_DEB_MAIN);
1179
1180         /* poke the firmware */
1181         ret = lbs_setup_firmware(priv);
1182         if (ret)
1183                 goto done;
1184
1185         /* init 802.11d */
1186         lbs_init_11d(priv);
1187
1188         if (register_netdev(dev)) {
1189                 lbs_pr_err("cannot register ethX device\n");
1190                 goto done;
1191         }
1192         if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
1193                 lbs_pr_err("cannot register lbs_rtap attribute\n");
1194
1195         /* Enable mesh, if supported, and work out which TLV it uses.
1196            0x100 + 291 is an unofficial value used in 5.110.20.pXX
1197            0x100 + 37 is the official value used in 5.110.21.pXX
1198            but we check them in that order because 20.pXX doesn't
1199            give an error -- it just silently fails. */
1200
1201         /* 5.110.20.pXX firmware will fail the command if the channel
1202            doesn't match the existing channel. But only if the TLV
1203            is correct. If the channel is wrong, _BOTH_ versions will
1204            give an error to 0x100+291, and allow 0x100+37 to succeed.
1205            It's just that 5.110.20.pXX will not have done anything
1206            useful */
1207
1208         lbs_update_channel(priv);
1209         priv->mesh_tlv = 0x100 + 291;
1210         if (lbs_mesh_config(priv, 1, priv->curbssparams.channel)) {
1211                 priv->mesh_tlv = 0x100 + 37;
1212                 if (lbs_mesh_config(priv, 1, priv->curbssparams.channel))
1213                         priv->mesh_tlv = 0;
1214         }
1215         if (priv->mesh_tlv) {
1216                 lbs_add_mesh(priv);
1217
1218                 if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
1219                         lbs_pr_err("cannot register lbs_mesh attribute\n");
1220         }
1221
1222         lbs_debugfs_init_one(priv, dev);
1223
1224         lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
1225
1226         ret = 0;
1227
1228 done:
1229         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1230         return ret;
1231 }
1232 EXPORT_SYMBOL_GPL(lbs_start_card);
1233
1234
1235 int lbs_stop_card(struct lbs_private *priv)
1236 {
1237         struct net_device *dev = priv->dev;
1238         int ret = -1;
1239         struct cmd_ctrl_node *cmdnode;
1240         unsigned long flags;
1241
1242         lbs_deb_enter(LBS_DEB_MAIN);
1243
1244         netif_stop_queue(priv->dev);
1245         netif_carrier_off(priv->dev);
1246
1247         lbs_debugfs_remove_one(priv);
1248         device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
1249         if (priv->mesh_tlv)
1250                 device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
1251
1252         /* Flush pending command nodes */
1253         spin_lock_irqsave(&priv->driver_lock, flags);
1254         list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
1255                 cmdnode->result = -ENOENT;
1256                 cmdnode->cmdwaitqwoken = 1;
1257                 wake_up_interruptible(&cmdnode->cmdwait_q);
1258         }
1259         spin_unlock_irqrestore(&priv->driver_lock, flags);
1260
1261         unregister_netdev(dev);
1262
1263         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1264         return ret;
1265 }
1266 EXPORT_SYMBOL_GPL(lbs_stop_card);
1267
1268
1269 /**
1270  * @brief This function adds mshX interface
1271  *
1272  *  @param priv    A pointer to the struct lbs_private structure
1273  *  @return        0 if successful, -X otherwise
1274  */
1275 static int lbs_add_mesh(struct lbs_private *priv)
1276 {
1277         struct net_device *mesh_dev = NULL;
1278         int ret = 0;
1279
1280         lbs_deb_enter(LBS_DEB_MESH);
1281
1282         /* Allocate a virtual mesh device */
1283         if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) {
1284                 lbs_deb_mesh("init mshX device failed\n");
1285                 ret = -ENOMEM;
1286                 goto done;
1287         }
1288         mesh_dev->priv = priv;
1289         priv->mesh_dev = mesh_dev;
1290
1291         mesh_dev->open = lbs_dev_open;
1292         mesh_dev->hard_start_xmit = lbs_hard_start_xmit;
1293         mesh_dev->stop = lbs_mesh_stop;
1294         mesh_dev->get_stats = lbs_get_stats;
1295         mesh_dev->set_mac_address = lbs_set_mac_address;
1296         mesh_dev->ethtool_ops = &lbs_ethtool_ops;
1297         memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
1298                         sizeof(priv->dev->dev_addr));
1299
1300         SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent);
1301
1302 #ifdef  WIRELESS_EXT
1303         mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def;
1304 #endif
1305         /* Register virtual mesh interface */
1306         ret = register_netdev(mesh_dev);
1307         if (ret) {
1308                 lbs_pr_err("cannot register mshX virtual interface\n");
1309                 goto err_free;
1310         }
1311
1312         ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1313         if (ret)
1314                 goto err_unregister;
1315
1316         /* Everything successful */
1317         ret = 0;
1318         goto done;
1319
1320 err_unregister:
1321         unregister_netdev(mesh_dev);
1322
1323 err_free:
1324         free_netdev(mesh_dev);
1325
1326 done:
1327         lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
1328         return ret;
1329 }
1330 EXPORT_SYMBOL_GPL(lbs_add_mesh);
1331
1332
1333 static void lbs_remove_mesh(struct lbs_private *priv)
1334 {
1335         struct net_device *mesh_dev;
1336
1337         lbs_deb_enter(LBS_DEB_MAIN);
1338
1339         if (!priv)
1340                 goto out;
1341
1342         mesh_dev = priv->mesh_dev;
1343         if (!mesh_dev)
1344                 goto out;
1345
1346         netif_stop_queue(mesh_dev);
1347         netif_carrier_off(priv->mesh_dev);
1348
1349         sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1350         unregister_netdev(mesh_dev);
1351
1352         priv->mesh_dev = NULL;
1353         free_netdev(mesh_dev);
1354
1355 out:
1356         lbs_deb_leave(LBS_DEB_MAIN);
1357 }
1358 EXPORT_SYMBOL_GPL(lbs_remove_mesh);
1359
1360 /**
1361  *  @brief This function finds the CFP in
1362  *  region_cfp_table based on region and band parameter.
1363  *
1364  *  @param region  The region code
1365  *  @param band    The band
1366  *  @param cfp_no  A pointer to CFP number
1367  *  @return        A pointer to CFP
1368  */
1369 struct chan_freq_power *lbs_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
1370 {
1371         int i, end;
1372
1373         lbs_deb_enter(LBS_DEB_MAIN);
1374
1375         end = ARRAY_SIZE(region_cfp_table);
1376
1377         for (i = 0; i < end ; i++) {
1378                 lbs_deb_main("region_cfp_table[i].region=%d\n",
1379                         region_cfp_table[i].region);
1380                 if (region_cfp_table[i].region == region) {
1381                         *cfp_no = region_cfp_table[i].cfp_no_BG;
1382                         lbs_deb_leave(LBS_DEB_MAIN);
1383                         return region_cfp_table[i].cfp_BG;
1384                 }
1385         }
1386
1387         lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL");
1388         return NULL;
1389 }
1390
1391 int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band)
1392 {
1393         int ret = 0;
1394         int i = 0;
1395
1396         struct chan_freq_power *cfp;
1397         int cfp_no;
1398
1399         lbs_deb_enter(LBS_DEB_MAIN);
1400
1401         memset(priv->region_channel, 0, sizeof(priv->region_channel));
1402
1403         {
1404                 cfp = lbs_get_region_cfp_table(region, band, &cfp_no);
1405                 if (cfp != NULL) {
1406                         priv->region_channel[i].nrcfp = cfp_no;
1407                         priv->region_channel[i].CFP = cfp;
1408                 } else {
1409                         lbs_deb_main("wrong region code %#x in band B/G\n",
1410                                region);
1411                         ret = -1;
1412                         goto out;
1413                 }
1414                 priv->region_channel[i].valid = 1;
1415                 priv->region_channel[i].region = region;
1416                 priv->region_channel[i].band = band;
1417                 i++;
1418         }
1419 out:
1420         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1421         return ret;
1422 }
1423
1424 /**
1425  *  @brief This function handles the interrupt. it will change PS
1426  *  state if applicable. it will wake up main_thread to handle
1427  *  the interrupt event as well.
1428  *
1429  *  @param dev     A pointer to net_device structure
1430  *  @return        n/a
1431  */
1432 void lbs_interrupt(struct lbs_private *priv)
1433 {
1434         lbs_deb_enter(LBS_DEB_THREAD);
1435
1436         lbs_deb_thread("lbs_interrupt: intcounter=%d\n", priv->intcounter);
1437
1438         priv->intcounter++;
1439
1440         if (priv->psstate == PS_STATE_SLEEP)
1441                 priv->psstate = PS_STATE_AWAKE;
1442
1443         wake_up_interruptible(&priv->waitq);
1444
1445         lbs_deb_leave(LBS_DEB_THREAD);
1446 }
1447 EXPORT_SYMBOL_GPL(lbs_interrupt);
1448
1449 int lbs_reset_device(struct lbs_private *priv)
1450 {
1451         int ret;
1452
1453         lbs_deb_enter(LBS_DEB_MAIN);
1454         ret = lbs_prepare_and_send_command(priv, CMD_802_11_RESET,
1455                                     CMD_ACT_HALT, 0, 0, NULL);
1456         msleep_interruptible(10);
1457
1458         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1459         return ret;
1460 }
1461 EXPORT_SYMBOL_GPL(lbs_reset_device);
1462
1463 static int __init lbs_init_module(void)
1464 {
1465         lbs_deb_enter(LBS_DEB_MAIN);
1466         lbs_debugfs_init();
1467         lbs_deb_leave(LBS_DEB_MAIN);
1468         return 0;
1469 }
1470
1471 static void __exit lbs_exit_module(void)
1472 {
1473         lbs_deb_enter(LBS_DEB_MAIN);
1474
1475         lbs_debugfs_remove();
1476
1477         lbs_deb_leave(LBS_DEB_MAIN);
1478 }
1479
1480 /*
1481  * rtap interface support fuctions
1482  */
1483
1484 static int lbs_rtap_open(struct net_device *dev)
1485 {
1486         /* Yes, _stop_ the queue. Because we don't support injection */
1487         netif_carrier_off(dev);
1488         netif_stop_queue(dev);
1489         return 0;
1490 }
1491
1492 static int lbs_rtap_stop(struct net_device *dev)
1493 {
1494         return 0;
1495 }
1496
1497 static int lbs_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1498 {
1499         netif_stop_queue(dev);
1500         return NETDEV_TX_BUSY;
1501 }
1502
1503 static struct net_device_stats *lbs_rtap_get_stats(struct net_device *dev)
1504 {
1505         struct lbs_private *priv = dev->priv;
1506         return &priv->stats;
1507 }
1508
1509
1510 static void lbs_remove_rtap(struct lbs_private *priv)
1511 {
1512         if (priv->rtap_net_dev == NULL)
1513                 return;
1514         unregister_netdev(priv->rtap_net_dev);
1515         free_netdev(priv->rtap_net_dev);
1516         priv->rtap_net_dev = NULL;
1517 }
1518
1519 static int lbs_add_rtap(struct lbs_private *priv)
1520 {
1521         int rc = 0;
1522         struct net_device *rtap_dev;
1523
1524         if (priv->rtap_net_dev)
1525                 return -EPERM;
1526
1527         rtap_dev = alloc_netdev(0, "rtap%d", ether_setup);
1528         if (rtap_dev == NULL)
1529                 return -ENOMEM;
1530
1531         memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN);
1532         rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP;
1533         rtap_dev->open = lbs_rtap_open;
1534         rtap_dev->stop = lbs_rtap_stop;
1535         rtap_dev->get_stats = lbs_rtap_get_stats;
1536         rtap_dev->hard_start_xmit = lbs_rtap_hard_start_xmit;
1537         rtap_dev->set_multicast_list = lbs_set_multicast_list;
1538         rtap_dev->priv = priv;
1539
1540         rc = register_netdev(rtap_dev);
1541         if (rc) {
1542                 free_netdev(rtap_dev);
1543                 return rc;
1544         }
1545         priv->rtap_net_dev = rtap_dev;
1546
1547         return 0;
1548 }
1549
1550
1551 module_init(lbs_init_module);
1552 module_exit(lbs_exit_module);
1553
1554 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1555 MODULE_AUTHOR("Marvell International Ltd.");
1556 MODULE_LICENSE("GPL");