err.no 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
 519 static int lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 520 {
 521         int ret = 0;
 522         struct lbs_private *priv = dev->priv;
 523
 524         lbs_deb_enter(LBS_DEB_TX);
 525
 526         /* We could return NETDEV_TX_BUSY here, but I'd actually
 527            like to get the point where we can BUG() */
 528         if (priv->dnld_sent) {
 529                 lbs_pr_err("%s while dnld_sent\n", __func__);
 530                 priv->stats.tx_dropped++;
 531                 goto done;
 532         }
 533         if (priv->currenttxskb) {
 534                 lbs_pr_err("%s while TX skb pending\n", __func__);
 535                 priv->stats.tx_dropped++;
 536                 goto done;
 537         }
 538
 539         netif_stop_queue(priv->dev);
 540         if (priv->mesh_dev)
 541                 netif_stop_queue(priv->mesh_dev);
 542
 543         if (lbs_process_tx(priv, skb) == 0)
 544                 dev->trans_start = jiffies;
 545 done:
 546         lbs_deb_leave_args(LBS_DEB_TX, "ret %d", ret);
 547         return ret;
 548 }
 549
 550 /**
 551  * @brief Mark mesh packets and handover them to lbs_hard_start_xmit
 552  *
 553  */
 554 static int lbs_mesh_pre_start_xmit(struct sk_buff *skb,
 555                 struct net_device *dev)
 556 {
 557         struct lbs_private *priv = dev->priv;
 558         int ret;
 559
 560         lbs_deb_enter(LBS_DEB_MESH);
 561         if (priv->monitormode != LBS_MONITOR_OFF) {
 562                 netif_stop_queue(dev);
 563                 return -EOPNOTSUPP;
 564         }
 565
 566         SET_MESH_FRAME(skb);
 567
 568         ret = lbs_hard_start_xmit(skb, priv->mesh_dev);
 569         lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
 570         return ret;
 571 }
 572
 573 /**
 574  * @brief Mark non-mesh packets and handover them to lbs_hard_start_xmit
 575  *
 576  */
 577 static int lbs_pre_start_xmit(struct sk_buff *skb, struct net_device *dev)
 578 {
 579         struct lbs_private *priv = dev->priv;
 580         int ret;
 581
 582         lbs_deb_enter(LBS_DEB_TX);
 583
 584         if (priv->monitormode != LBS_MONITOR_OFF) {
 585                 netif_stop_queue(dev);
 586                 return -EOPNOTSUPP;
 587         }
 588
 589         UNSET_MESH_FRAME(skb);
 590
 591         ret = lbs_hard_start_xmit(skb, dev);
 592         lbs_deb_leave_args(LBS_DEB_TX, "ret %d", ret);
 593         return ret;
 594 }
 595
 596 static void lbs_tx_timeout(struct net_device *dev)
 597 {
 598         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 599
 600         lbs_deb_enter(LBS_DEB_TX);
 601
 602         lbs_pr_err("tx watch dog timeout\n");
 603
 604         dev->trans_start = jiffies;
 605
 606         if (priv->currenttxskb) {
 607                 priv->eventcause = 0x01000000;
 608                 lbs_send_tx_feedback(priv);
 609         }
 610         /* XX: Shouldn't we also call into the hw-specific driver
 611            to kick it somehow? */
 612         lbs_host_to_card_done(priv);
 613
 614         lbs_deb_leave(LBS_DEB_TX);
 615 }
 616
 617 void lbs_host_to_card_done(struct lbs_private *priv)
 618 {
 619         unsigned long flags;
 620
 621         spin_lock_irqsave(&priv->driver_lock, flags);
 622
 623         priv->dnld_sent = DNLD_RES_RECEIVED;
 624
 625         /* Wake main thread if commands are pending */
 626         if (!priv->cur_cmd)
 627                 wake_up_interruptible(&priv->waitq);
 628
 629         /* Don't wake netif queues if we're in monitor mode and
 630            a TX packet is already pending, or if there are commands
 631            queued to be sent. */
 632         if (!priv->currenttxskb && list_empty(&priv->cmdpendingq)) {
 633                 if (priv->dev && priv->connect_status == LBS_CONNECTED)
 634                         netif_wake_queue(priv->dev);
 635
 636                 if (priv->mesh_dev && priv->mesh_connect_status == LBS_CONNECTED)
 637                         netif_wake_queue(priv->mesh_dev);
 638         }
 639         spin_unlock_irqrestore(&priv->driver_lock, flags);
 640 }
 641 EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
 642
 643 /**
 644  *  @brief This function returns the network statistics
 645  *
 646  *  @param dev     A pointer to struct lbs_private structure
 647  *  @return        A pointer to net_device_stats structure
 648  */
 649 static struct net_device_stats *lbs_get_stats(struct net_device *dev)
 650 {
 651         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 652
 653         return &priv->stats;
 654 }
 655
 656 static int lbs_set_mac_address(struct net_device *dev, void *addr)
 657 {
 658         int ret = 0;
 659         struct lbs_private *priv = (struct lbs_private *) dev->priv;
 660         struct sockaddr *phwaddr = addr;
 661
 662         lbs_deb_enter(LBS_DEB_NET);
 663
 664         /* In case it was called from the mesh device */
 665         dev = priv->dev ;
 666
 667         memset(priv->current_addr, 0, ETH_ALEN);
 668
 669         /* dev->dev_addr is 8 bytes */
 670         lbs_deb_hex(LBS_DEB_NET, "dev->dev_addr", dev->dev_addr, ETH_ALEN);
 671
 672         lbs_deb_hex(LBS_DEB_NET, "addr", phwaddr->sa_data, ETH_ALEN);
 673         memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN);
 674
 675         ret = lbs_prepare_and_send_command(priv, CMD_802_11_MAC_ADDRESS,
 676                                     CMD_ACT_SET,
 677                                     CMD_OPTION_WAITFORRSP, 0, NULL);
 678
 679         if (ret) {
 680                 lbs_deb_net("set MAC address failed\n");
 681                 ret = -1;
 682                 goto done;
 683         }
 684
 685         lbs_deb_hex(LBS_DEB_NET, "priv->macaddr", priv->current_addr, ETH_ALEN);
 686         memcpy(dev->dev_addr, priv->current_addr, ETH_ALEN);
 687         if (priv->mesh_dev)
 688                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 689
 690 done:
 691         lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
 692         return ret;
 693 }
 694
 695 static int lbs_copy_multicast_address(struct lbs_private *priv,
 696                                      struct net_device *dev)
 697 {
 698         int i = 0;
 699         struct dev_mc_list *mcptr = dev->mc_list;
 700
 701         for (i = 0; i < dev->mc_count; i++) {
 702                 memcpy(&priv->multicastlist[i], mcptr->dmi_addr, ETH_ALEN);
 703                 mcptr = mcptr->next;
 704         }
 705
 706         return i;
 707
 708 }
 709
 710 static void lbs_set_multicast_list(struct net_device *dev)
 711 {
 712         struct lbs_private *priv = dev->priv;
 713         int oldpacketfilter;
 714         DECLARE_MAC_BUF(mac);
 715
 716         lbs_deb_enter(LBS_DEB_NET);
 717
 718         oldpacketfilter = priv->currentpacketfilter;
 719
 720         if (dev->flags & IFF_PROMISC) {
 721                 lbs_deb_net("enable promiscuous mode\n");
 722                 priv->currentpacketfilter |=
 723                     CMD_ACT_MAC_PROMISCUOUS_ENABLE;
 724                 priv->currentpacketfilter &=
 725                     ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
 726                       CMD_ACT_MAC_MULTICAST_ENABLE);
 727         } else {
 728                 /* Multicast */
 729                 priv->currentpacketfilter &=
 730                     ~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
 731
 732                 if (dev->flags & IFF_ALLMULTI || dev->mc_count >
 733                     MRVDRV_MAX_MULTICAST_LIST_SIZE) {
 734                         lbs_deb_net( "enabling all multicast\n");
 735                         priv->currentpacketfilter |=
 736                             CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
 737                         priv->currentpacketfilter &=
 738                             ~CMD_ACT_MAC_MULTICAST_ENABLE;
 739                 } else {
 740                         priv->currentpacketfilter &=
 741                             ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
 742
 743                         if (!dev->mc_count) {
 744                                 lbs_deb_net("no multicast addresses, "
 745                                        "disabling multicast\n");
 746                                 priv->currentpacketfilter &=
 747                                     ~CMD_ACT_MAC_MULTICAST_ENABLE;
 748                         } else {
 749                                 int i;
 750
 751                                 priv->currentpacketfilter |=
 752                                     CMD_ACT_MAC_MULTICAST_ENABLE;
 753
 754                                 priv->nr_of_multicastmacaddr =
 755                                     lbs_copy_multicast_address(priv, dev);
 756
 757                                 lbs_deb_net("multicast addresses: %d\n",
 758                                        dev->mc_count);
 759
 760                                 for (i = 0; i < dev->mc_count; i++) {
 761                                         lbs_deb_net("Multicast address %d:%s\n",
 762                                                i, print_mac(mac,
 763                                                priv->multicastlist[i]));
 764                                 }
 765                                 /* send multicast addresses to firmware */
 766                                 lbs_prepare_and_send_command(priv,
 767                                                       CMD_MAC_MULTICAST_ADR,
 768                                                       CMD_ACT_SET, 0, 0,
 769                                                       NULL);
 770                         }
 771                 }
 772         }
 773
 774         if (priv->currentpacketfilter != oldpacketfilter) {
 775                 lbs_set_mac_packet_filter(priv);
 776         }
 777
 778         lbs_deb_leave(LBS_DEB_NET);
 779 }
 780
 781 /**
 782  *  @brief This function handles the major jobs in the LBS driver.
 783  *  It handles all events generated by firmware, RX data received
 784  *  from firmware and TX data sent from kernel.
 785  *
 786  *  @param data    A pointer to lbs_thread structure
 787  *  @return        0
 788  */
 789 static int lbs_thread(void *data)
 790 {
 791         struct net_device *dev = data;
 792         struct lbs_private *priv = dev->priv;
 793         wait_queue_t wait;
 794         u8 ireg = 0;
 795
 796         lbs_deb_enter(LBS_DEB_THREAD);
 797
 798         init_waitqueue_entry(&wait, current);
 799
 800         set_freezable();
 801
 802         for (;;) {
 803                 lbs_deb_thread( "main-thread 111: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 804                                 priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 805
 806                 add_wait_queue(&priv->waitq, &wait);
 807                 set_current_state(TASK_INTERRUPTIBLE);
 808                 spin_lock_irq(&priv->driver_lock);
 809
 810                 if ((priv->psstate == PS_STATE_SLEEP) ||
 811                     (!priv->intcounter && (priv->dnld_sent || priv->cur_cmd || list_empty(&priv->cmdpendingq)))) {
 812                         lbs_deb_thread("main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
 813                                        priv->connect_status, priv->intcounter,
 814                                        priv->psmode, priv->psstate);
 815                         spin_unlock_irq(&priv->driver_lock);
 816                         schedule();
 817                 } else
 818                         spin_unlock_irq(&priv->driver_lock);
 819
 820                 lbs_deb_thread("main-thread 222 (waking up): intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 821                                priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 822
 823                 set_current_state(TASK_RUNNING);
 824                 remove_wait_queue(&priv->waitq, &wait);
 825                 try_to_freeze();
 826
 827                 lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 828                                priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 829
 830                 if (kthread_should_stop() || priv->surpriseremoved) {
 831                         lbs_deb_thread("main-thread: break from main thread: surpriseremoved=0x%x\n",
 832                                        priv->surpriseremoved);
 833                         break;
 834                 }
 835
 836
 837                 spin_lock_irq(&priv->driver_lock);
 838
 839                 if (priv->intcounter) {
 840                         u8 int_status;
 841
 842                         priv->intcounter = 0;
 843                         int_status = priv->hw_get_int_status(priv, &ireg);
 844
 845                         if (int_status) {
 846                                 lbs_deb_thread("main-thread: reading HOST_INT_STATUS_REG failed\n");
 847                                 spin_unlock_irq(&priv->driver_lock);
 848                                 continue;
 849                         }
 850                         priv->hisregcpy |= ireg;
 851                 }
 852
 853                 lbs_deb_thread("main-thread 444: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
 854                                priv->intcounter, priv->currenttxskb, priv->dnld_sent);
 855
 856                 /* command response? */
 857                 if (priv->hisregcpy & MRVDRV_CMD_UPLD_RDY) {
 858                         lbs_deb_thread("main-thread: cmd response ready\n");
 859
 860                         priv->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY;
 861                         spin_unlock_irq(&priv->driver_lock);
 862                         lbs_process_rx_command(priv);
 863                         spin_lock_irq(&priv->driver_lock);
 864                 }
 865
 866                 /* Any Card Event */
 867                 if (priv->hisregcpy & MRVDRV_CARDEVENT) {
 868                         lbs_deb_thread("main-thread: Card Event Activity\n");
 869
 870                         priv->hisregcpy &= ~MRVDRV_CARDEVENT;
 871
 872                         if (priv->hw_read_event_cause(priv)) {
 873                                 lbs_pr_alert("main-thread: hw_read_event_cause failed\n");
 874                                 spin_unlock_irq(&priv->driver_lock);
 875                                 continue;
 876                         }
 877                         spin_unlock_irq(&priv->driver_lock);
 878                         lbs_process_event(priv);
 879                 } else
 880                         spin_unlock_irq(&priv->driver_lock);
 881
 882                 /* Check if we need to confirm Sleep Request received previously */
 883                 if (priv->psstate == PS_STATE_PRE_SLEEP &&
 884                     !priv->dnld_sent && !priv->cur_cmd) {
 885                         if (priv->connect_status == LBS_CONNECTED) {
 886                                 lbs_deb_thread("main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p dnld_sent=%d cur_cmd=%p, confirm now\n",
 887                                                priv->intcounter, priv->currenttxskb, priv->dnld_sent, priv->cur_cmd);
 888
 889                                 lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
 890                         } else {
 891                                 /* workaround for firmware sending
 892                                  * deauth/linkloss event immediately
 893                                  * after sleep request; remove this
 894                                  * after firmware fixes it
 895                                  */
 896                                 priv->psstate = PS_STATE_AWAKE;
 897                                 lbs_pr_alert("main-thread: ignore PS_SleepConfirm in non-connected state\n");
 898                         }
 899                 }
 900
 901                 /* The PS state is changed during processing of Sleep Request
 902                  * event above
 903                  */
 904                 if ((priv->psstate == PS_STATE_SLEEP) ||
 905                     (priv->psstate == PS_STATE_PRE_SLEEP))
 906                         continue;
 907
 908                 /* Execute the next command */
 909                 if (!priv->dnld_sent && !priv->cur_cmd)
 910                         lbs_execute_next_command(priv);
 911
 912                 /* Wake-up command waiters which can't sleep in
 913                  * lbs_prepare_and_send_command
 914                  */
 915                 if (!list_empty(&priv->cmdpendingq))
 916                         wake_up_all(&priv->cmd_pending);
 917
 918                 lbs_tx_runqueue(priv);
 919         }
 920
 921         del_timer(&priv->command_timer);
 922         wake_up_all(&priv->cmd_pending);
 923
 924         lbs_deb_leave(LBS_DEB_THREAD);
 925         return 0;
 926 }
 927
 928 /**
 929  *  @brief This function downloads firmware image, gets
 930  *  HW spec from firmware and set basic parameters to
 931  *  firmware.
 932  *
 933  *  @param priv    A pointer to struct lbs_private structure
 934  *  @return        0 or -1
 935  */
 936 static int lbs_setup_firmware(struct lbs_private *priv)
 937 {
 938         int ret = -1;
 939         struct cmd_ds_mesh_access mesh_access;
 940
 941         lbs_deb_enter(LBS_DEB_FW);
 942
 943         /*
 944          * Read MAC address from HW
 945          */
 946         memset(priv->current_addr, 0xff, ETH_ALEN);
 947
 948         ret = lbs_prepare_and_send_command(priv, CMD_GET_HW_SPEC,
 949                                     0, CMD_OPTION_WAITFORRSP, 0, NULL);
 950
 951         if (ret) {
 952                 ret = -1;
 953                 goto done;
 954         }
 955
 956         lbs_set_mac_packet_filter(priv);
 957
 958         /* Get the supported Data rates */
 959         ret = lbs_prepare_and_send_command(priv, CMD_802_11_DATA_RATE,
 960                                     CMD_ACT_GET_TX_RATE,
 961                                     CMD_OPTION_WAITFORRSP, 0, NULL);
 962
 963         if (ret) {
 964                 ret = -1;
 965                 goto done;
 966         }
 967
 968         /* Disable mesh autostart */
 969         if (priv->mesh_dev) {
 970                 memset(&mesh_access, 0, sizeof(mesh_access));
 971                 mesh_access.data[0] = cpu_to_le32(0);
 972                 ret = lbs_prepare_and_send_command(priv,
 973                                 CMD_MESH_ACCESS,
 974                                 CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
 975                                 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
 976                 if (ret) {
 977                         ret = -1;
 978                         goto done;
 979                 }
 980                 priv->mesh_autostart_enabled = 0;
 981         }
 982
 983         ret = 0;
 984 done:
 985         lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
 986         return ret;
 987 }
 988
 989 /**
 990  *  This function handles the timeout of command sending.
 991  *  It will re-send the same command again.
 992  */
 993 static void command_timer_fn(unsigned long data)
 994 {
 995         struct lbs_private *priv = (struct lbs_private *)data;
 996         struct cmd_ctrl_node *ptempnode;
 997         struct cmd_ds_command *cmd;
 998         unsigned long flags;
 999
1000         ptempnode = priv->cur_cmd;
1001         if (ptempnode == NULL) {
1002                 lbs_deb_fw("ptempnode empty\n");
1003                 return;
1004         }
1005
1006         cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
1007         if (!cmd) {
1008                 lbs_deb_fw("cmd is NULL\n");
1009                 return;
1010         }
1011
1012         lbs_deb_fw("command_timer_fn fired, cmd %x\n", cmd->command);
1013
1014         if (!priv->fw_ready)
1015                 return;
1016
1017         spin_lock_irqsave(&priv->driver_lock, flags);
1018         priv->cur_cmd = NULL;
1019         spin_unlock_irqrestore(&priv->driver_lock, flags);
1020
1021         lbs_deb_fw("re-sending same command because of timeout\n");
1022         lbs_queue_cmd(priv, ptempnode, 0);
1023
1024         wake_up_interruptible(&priv->waitq);
1025
1026         return;
1027 }
1028
1029 static int lbs_init_adapter(struct lbs_private *priv)
1030 {
1031         size_t bufsize;
1032         int i, ret = 0;
1033
1034         /* Allocate buffer to store the BSSID list */
1035         bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
1036         priv->networks = kzalloc(bufsize, GFP_KERNEL);
1037         if (!priv->networks) {
1038                 lbs_pr_err("Out of memory allocating beacons\n");
1039                 ret = -1;
1040                 goto out;
1041         }
1042
1043         /* Initialize scan result lists */
1044         INIT_LIST_HEAD(&priv->network_free_list);
1045         INIT_LIST_HEAD(&priv->network_list);
1046         for (i = 0; i < MAX_NETWORK_COUNT; i++) {
1047                 list_add_tail(&priv->networks[i].list,
1048                               &priv->network_free_list);
1049         }
1050
1051         priv->lbs_ps_confirm_sleep.seqnum = cpu_to_le16(++priv->seqnum);
1052         priv->lbs_ps_confirm_sleep.command =
1053             cpu_to_le16(CMD_802_11_PS_MODE);
1054         priv->lbs_ps_confirm_sleep.size =
1055             cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
1056         priv->lbs_ps_confirm_sleep.action =
1057             cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
1058
1059         memset(priv->current_addr, 0xff, ETH_ALEN);
1060
1061         priv->connect_status = LBS_DISCONNECTED;
1062         priv->mesh_connect_status = LBS_DISCONNECTED;
1063         priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1064         priv->mode = IW_MODE_INFRA;
1065         priv->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
1066         priv->currentpacketfilter = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
1067         priv->radioon = RADIO_ON;
1068         priv->auto_rate = 1;
1069         priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
1070         priv->psmode = LBS802_11POWERMODECAM;
1071         priv->psstate = PS_STATE_FULL_POWER;
1072
1073         mutex_init(&priv->lock);
1074
1075         memset(&priv->tx_queue_ps, 0, NR_TX_QUEUE*sizeof(struct sk_buff*));
1076         priv->tx_queue_idx = 0;
1077         spin_lock_init(&priv->txqueue_lock);
1078
1079         setup_timer(&priv->command_timer, command_timer_fn,
1080                     (unsigned long)priv);
1081
1082         INIT_LIST_HEAD(&priv->cmdfreeq);
1083         INIT_LIST_HEAD(&priv->cmdpendingq);
1084
1085         spin_lock_init(&priv->driver_lock);
1086         init_waitqueue_head(&priv->cmd_pending);
1087
1088         /* Allocate the command buffers */
1089         if (lbs_allocate_cmd_buffer(priv)) {
1090                 lbs_pr_err("Out of memory allocating command buffers\n");
1091                 ret = -1;
1092         }
1093
1094 out:
1095         return ret;
1096 }
1097
1098 static void lbs_free_adapter(struct lbs_private *priv)
1099 {
1100         lbs_deb_fw("free command buffer\n");
1101         lbs_free_cmd_buffer(priv);
1102
1103         lbs_deb_fw("free command_timer\n");
1104         del_timer(&priv->command_timer);
1105
1106         lbs_deb_fw("free scan results table\n");
1107         kfree(priv->networks);
1108         priv->networks = NULL;
1109 }
1110
1111 /**
1112  * @brief This function adds the card. it will probe the
1113  * card, allocate the lbs_priv and initialize the device.
1114  *
1115  *  @param card    A pointer to card
1116  *  @return        A pointer to struct lbs_private structure
1117  */
1118 struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
1119 {
1120         struct net_device *dev = NULL;
1121         struct lbs_private *priv = NULL;
1122
1123         lbs_deb_enter(LBS_DEB_NET);
1124
1125         /* Allocate an Ethernet device and register it */
1126         dev = alloc_etherdev(sizeof(struct lbs_private));
1127         if (!dev) {
1128                 lbs_pr_err("init ethX device failed\n");
1129                 goto done;
1130         }
1131         priv = dev->priv;
1132
1133         if (lbs_init_adapter(priv)) {
1134                 lbs_pr_err("failed to initialize adapter structure.\n");
1135                 goto err_init_adapter;
1136         }
1137
1138         priv->dev = dev;
1139         priv->card = card;
1140         priv->mesh_open = 0;
1141         priv->infra_open = 0;
1142
1143         /* Setup the OS Interface to our functions */
1144         dev->open = lbs_open;
1145         dev->hard_start_xmit = lbs_pre_start_xmit;
1146         dev->stop = lbs_close;
1147         dev->set_mac_address = lbs_set_mac_address;
1148         dev->tx_timeout = lbs_tx_timeout;
1149         dev->get_stats = lbs_get_stats;
1150         dev->watchdog_timeo = 5 * HZ;
1151         dev->ethtool_ops = &lbs_ethtool_ops;
1152 #ifdef  WIRELESS_EXT
1153         dev->wireless_handlers = (struct iw_handler_def *)&lbs_handler_def;
1154 #endif
1155         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1156         dev->set_multicast_list = lbs_set_multicast_list;
1157
1158         SET_NETDEV_DEV(dev, dmdev);
1159
1160         priv->rtap_net_dev = NULL;
1161
1162         lbs_deb_thread("Starting main thread...\n");
1163         init_waitqueue_head(&priv->waitq);
1164         priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
1165         if (IS_ERR(priv->main_thread)) {
1166                 lbs_deb_thread("Error creating main thread.\n");
1167                 goto err_init_adapter;
1168         }
1169
1170         priv->work_thread = create_singlethread_workqueue("lbs_worker");
1171         INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker);
1172         INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
1173         INIT_WORK(&priv->sync_channel, lbs_sync_channel);
1174
1175         goto done;
1176
1177 err_init_adapter:
1178         lbs_free_adapter(priv);
1179         free_netdev(dev);
1180         priv = NULL;
1181
1182 done:
1183         lbs_deb_leave_args(LBS_DEB_NET, "priv %p", priv);
1184         return priv;
1185 }
1186 EXPORT_SYMBOL_GPL(lbs_add_card);
1187
1188
1189 int lbs_remove_card(struct lbs_private *priv)
1190 {
1191         struct net_device *dev = priv->dev;
1192         union iwreq_data wrqu;
1193
1194         lbs_deb_enter(LBS_DEB_MAIN);
1195
1196         lbs_remove_rtap(priv);
1197
1198         dev = priv->dev;
1199         device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
1200
1201         cancel_delayed_work(&priv->scan_work);
1202         cancel_delayed_work(&priv->assoc_work);
1203         destroy_workqueue(priv->work_thread);
1204
1205         if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
1206                 priv->psmode = LBS802_11POWERMODECAM;
1207                 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
1208         }
1209
1210         memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN);
1211         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1212         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1213
1214         /* Stop the thread servicing the interrupts */
1215         priv->surpriseremoved = 1;
1216         kthread_stop(priv->main_thread);
1217
1218         lbs_free_adapter(priv);
1219
1220         priv->dev = NULL;
1221         free_netdev(dev);
1222
1223         lbs_deb_leave(LBS_DEB_MAIN);
1224         return 0;
1225 }
1226 EXPORT_SYMBOL_GPL(lbs_remove_card);
1227
1228
1229 int lbs_start_card(struct lbs_private *priv)
1230 {
1231         struct net_device *dev = priv->dev;
1232         int ret = -1;
1233
1234         lbs_deb_enter(LBS_DEB_MAIN);
1235
1236         /* poke the firmware */
1237         ret = lbs_setup_firmware(priv);
1238         if (ret)
1239                 goto done;
1240
1241         /* init 802.11d */
1242         lbs_init_11d(priv);
1243
1244         if (register_netdev(dev)) {
1245                 lbs_pr_err("cannot register ethX device\n");
1246                 goto done;
1247         }
1248         if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
1249                 lbs_pr_err("cannot register lbs_rtap attribute\n");
1250
1251         lbs_debugfs_init_one(priv, dev);
1252
1253         lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
1254
1255         ret = 0;
1256
1257 done:
1258         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1259         return ret;
1260 }
1261 EXPORT_SYMBOL_GPL(lbs_start_card);
1262
1263
1264 int lbs_stop_card(struct lbs_private *priv)
1265 {
1266         struct net_device *dev = priv->dev;
1267         int ret = -1;
1268         struct cmd_ctrl_node *cmdnode;
1269         unsigned long flags;
1270
1271         lbs_deb_enter(LBS_DEB_MAIN);
1272
1273         netif_stop_queue(priv->dev);
1274         netif_carrier_off(priv->dev);
1275
1276         lbs_debugfs_remove_one(priv);
1277
1278         /* Flush pending command nodes */
1279         spin_lock_irqsave(&priv->driver_lock, flags);
1280         list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
1281                 cmdnode->cmdwaitqwoken = 1;
1282                 wake_up_interruptible(&cmdnode->cmdwait_q);
1283         }
1284         spin_unlock_irqrestore(&priv->driver_lock, flags);
1285
1286         unregister_netdev(dev);
1287
1288         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1289         return ret;
1290 }
1291 EXPORT_SYMBOL_GPL(lbs_stop_card);
1292
1293
1294 /**
1295  * @brief This function adds mshX interface
1296  *
1297  *  @param priv    A pointer to the struct lbs_private structure
1298  *  @return        0 if successful, -X otherwise
1299  */
1300 int lbs_add_mesh(struct lbs_private *priv, struct device *dev)
1301 {
1302         struct net_device *mesh_dev = NULL;
1303         int ret = 0;
1304
1305         lbs_deb_enter(LBS_DEB_MESH);
1306
1307         /* Allocate a virtual mesh device */
1308         if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) {
1309                 lbs_deb_mesh("init mshX device failed\n");
1310                 ret = -ENOMEM;
1311                 goto done;
1312         }
1313         mesh_dev->priv = priv;
1314         priv->mesh_dev = mesh_dev;
1315
1316         mesh_dev->open = lbs_mesh_open;
1317         mesh_dev->hard_start_xmit = lbs_mesh_pre_start_xmit;
1318         mesh_dev->stop = lbs_mesh_close;
1319         mesh_dev->get_stats = lbs_get_stats;
1320         mesh_dev->set_mac_address = lbs_set_mac_address;
1321         mesh_dev->ethtool_ops = &lbs_ethtool_ops;
1322         memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
1323                         sizeof(priv->dev->dev_addr));
1324
1325         SET_NETDEV_DEV(priv->mesh_dev, dev);
1326
1327 #ifdef  WIRELESS_EXT
1328         mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def;
1329 #endif
1330         /* Register virtual mesh interface */
1331         ret = register_netdev(mesh_dev);
1332         if (ret) {
1333                 lbs_pr_err("cannot register mshX virtual interface\n");
1334                 goto err_free;
1335         }
1336
1337         ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1338         if (ret)
1339                 goto err_unregister;
1340
1341         /* Everything successful */
1342         ret = 0;
1343         goto done;
1344
1345 err_unregister:
1346         unregister_netdev(mesh_dev);
1347
1348 err_free:
1349         free_netdev(mesh_dev);
1350
1351 done:
1352         lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
1353         return ret;
1354 }
1355 EXPORT_SYMBOL_GPL(lbs_add_mesh);
1356
1357
1358 void lbs_remove_mesh(struct lbs_private *priv)
1359 {
1360         struct net_device *mesh_dev;
1361
1362         lbs_deb_enter(LBS_DEB_MAIN);
1363
1364         if (!priv)
1365                 goto out;
1366
1367         mesh_dev = priv->mesh_dev;
1368
1369         netif_stop_queue(mesh_dev);
1370         netif_carrier_off(priv->mesh_dev);
1371
1372         sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1373         unregister_netdev(mesh_dev);
1374
1375         priv->mesh_dev = NULL ;
1376         free_netdev(mesh_dev);
1377
1378 out:
1379         lbs_deb_leave(LBS_DEB_MAIN);
1380 }
1381 EXPORT_SYMBOL_GPL(lbs_remove_mesh);
1382
1383 /**
1384  *  @brief This function finds the CFP in
1385  *  region_cfp_table based on region and band parameter.
1386  *
1387  *  @param region  The region code
1388  *  @param band    The band
1389  *  @param cfp_no  A pointer to CFP number
1390  *  @return        A pointer to CFP
1391  */
1392 struct chan_freq_power *lbs_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
1393 {
1394         int i, end;
1395
1396         lbs_deb_enter(LBS_DEB_MAIN);
1397
1398         end = ARRAY_SIZE(region_cfp_table);
1399
1400         for (i = 0; i < end ; i++) {
1401                 lbs_deb_main("region_cfp_table[i].region=%d\n",
1402                         region_cfp_table[i].region);
1403                 if (region_cfp_table[i].region == region) {
1404                         *cfp_no = region_cfp_table[i].cfp_no_BG;
1405                         lbs_deb_leave(LBS_DEB_MAIN);
1406                         return region_cfp_table[i].cfp_BG;
1407                 }
1408         }
1409
1410         lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL");
1411         return NULL;
1412 }
1413
1414 int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band)
1415 {
1416         int ret = 0;
1417         int i = 0;
1418
1419         struct chan_freq_power *cfp;
1420         int cfp_no;
1421
1422         lbs_deb_enter(LBS_DEB_MAIN);
1423
1424         memset(priv->region_channel, 0, sizeof(priv->region_channel));
1425
1426         {
1427                 cfp = lbs_get_region_cfp_table(region, band, &cfp_no);
1428                 if (cfp != NULL) {
1429                         priv->region_channel[i].nrcfp = cfp_no;
1430                         priv->region_channel[i].CFP = cfp;
1431                 } else {
1432                         lbs_deb_main("wrong region code %#x in band B/G\n",
1433                                region);
1434                         ret = -1;
1435                         goto out;
1436                 }
1437                 priv->region_channel[i].valid = 1;
1438                 priv->region_channel[i].region = region;
1439                 priv->region_channel[i].band = band;
1440                 i++;
1441         }
1442 out:
1443         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1444         return ret;
1445 }
1446
1447 /**
1448  *  @brief This function handles the interrupt. it will change PS
1449  *  state if applicable. it will wake up main_thread to handle
1450  *  the interrupt event as well.
1451  *
1452  *  @param dev     A pointer to net_device structure
1453  *  @return        n/a
1454  */
1455 void lbs_interrupt(struct net_device *dev)
1456 {
1457         struct lbs_private *priv = dev->priv;
1458
1459         lbs_deb_enter(LBS_DEB_THREAD);
1460
1461         lbs_deb_thread("lbs_interrupt: intcounter=%d\n",
1462                priv->intcounter);
1463
1464         priv->intcounter++;
1465
1466         if (priv->psstate == PS_STATE_SLEEP) {
1467                 priv->psstate = PS_STATE_AWAKE;
1468                 netif_wake_queue(dev);
1469                 if (priv->mesh_dev)
1470                         netif_wake_queue(priv->mesh_dev);
1471         }
1472
1473         wake_up_interruptible(&priv->waitq);
1474
1475         lbs_deb_leave(LBS_DEB_THREAD);
1476 }
1477 EXPORT_SYMBOL_GPL(lbs_interrupt);
1478
1479 int lbs_reset_device(struct lbs_private *priv)
1480 {
1481         int ret;
1482
1483         lbs_deb_enter(LBS_DEB_MAIN);
1484         ret = lbs_prepare_and_send_command(priv, CMD_802_11_RESET,
1485                                     CMD_ACT_HALT, 0, 0, NULL);
1486         msleep_interruptible(10);
1487
1488         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1489         return ret;
1490 }
1491 EXPORT_SYMBOL_GPL(lbs_reset_device);
1492
1493 static int __init lbs_init_module(void)
1494 {
1495         lbs_deb_enter(LBS_DEB_MAIN);
1496         lbs_debugfs_init();
1497         lbs_deb_leave(LBS_DEB_MAIN);
1498         return 0;
1499 }
1500
1501 static void __exit lbs_exit_module(void)
1502 {
1503         lbs_deb_enter(LBS_DEB_MAIN);
1504
1505         lbs_debugfs_remove();
1506
1507         lbs_deb_leave(LBS_DEB_MAIN);
1508 }
1509
1510 /*
1511  * rtap interface support fuctions
1512  */
1513
1514 static int lbs_rtap_open(struct net_device *dev)
1515 {
1516         netif_carrier_off(dev);
1517         netif_stop_queue(dev);
1518         return 0;
1519 }
1520
1521 static int lbs_rtap_stop(struct net_device *dev)
1522 {
1523         return 0;
1524 }
1525
1526 static int lbs_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1527 {
1528         netif_stop_queue(dev);
1529         return -EOPNOTSUPP;
1530 }
1531
1532 static struct net_device_stats *lbs_rtap_get_stats(struct net_device *dev)
1533 {
1534         struct lbs_private *priv = dev->priv;
1535         return &priv->ieee->stats;
1536 }
1537
1538
1539 void lbs_remove_rtap(struct lbs_private *priv)
1540 {
1541         if (priv->rtap_net_dev == NULL)
1542                 return;
1543         unregister_netdev(priv->rtap_net_dev);
1544         free_ieee80211(priv->rtap_net_dev);
1545         priv->rtap_net_dev = NULL;
1546 }
1547
1548 int lbs_add_rtap(struct lbs_private *priv)
1549 {
1550         int rc = 0;
1551
1552         if (priv->rtap_net_dev)
1553                 return -EPERM;
1554
1555         priv->rtap_net_dev = alloc_ieee80211(0);
1556         if (priv->rtap_net_dev == NULL)
1557                 return -ENOMEM;
1558
1559
1560         priv->ieee = netdev_priv(priv->rtap_net_dev);
1561
1562         strcpy(priv->rtap_net_dev->name, "rtap%d");
1563
1564         priv->rtap_net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
1565         priv->rtap_net_dev->open = lbs_rtap_open;
1566         priv->rtap_net_dev->stop = lbs_rtap_stop;
1567         priv->rtap_net_dev->get_stats = lbs_rtap_get_stats;
1568         priv->rtap_net_dev->hard_start_xmit = lbs_rtap_hard_start_xmit;
1569         priv->rtap_net_dev->set_multicast_list = lbs_set_multicast_list;
1570         priv->rtap_net_dev->priv = priv;
1571
1572         priv->ieee->iw_mode = IW_MODE_MONITOR;
1573
1574         rc = register_netdev(priv->rtap_net_dev);
1575         if (rc) {
1576                 free_ieee80211(priv->rtap_net_dev);
1577                 priv->rtap_net_dev = NULL;
1578                 return rc;
1579         }
1580
1581         return 0;
1582 }
1583
1584
1585 module_init(lbs_init_module);
1586 module_exit(lbs_exit_module);
1587
1588 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1589 MODULE_AUTHOR("Marvell International Ltd.");
1590 MODULE_LICENSE("GPL");