drivers/net/wireless/libertas/cmdresp.c

   1 /**
   2   * This file contains the handling of command
   3   * responses as well as events generated by firmware.
   4   */
   5 #include <linux/delay.h>
   6 #include <linux/sched.h>
   7 #include <linux/if_arp.h>
   8 #include <linux/netdevice.h>
   9 #include <asm/unaligned.h>
  10 #include <net/iw_handler.h>
  11
  12 #include "host.h"
  13 #include "decl.h"
  14 #include "cmd.h"
  15 #include "defs.h"
  16 #include "dev.h"
  17 #include "assoc.h"
  18 #include "wext.h"
  19
  20 /**
  21  *  @brief This function handles disconnect event. it
  22  *  reports disconnect to upper layer, clean tx/rx packets,
  23  *  reset link state etc.
  24  *
  25  *  @param priv    A pointer to struct lbs_private structure
  26  *  @return        n/a
  27  */
  28 void lbs_mac_event_disconnected(struct lbs_private *priv)
  29 {
  30         union iwreq_data wrqu;
  31
  32         if (priv->connect_status != LBS_CONNECTED)
  33                 return;
  34
  35         lbs_deb_enter(LBS_DEB_ASSOC);
  36
  37         memset(wrqu.ap_addr.sa_data, 0x00, ETH_ALEN);
  38         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
  39
  40         /*
  41          * Cisco AP sends EAP failure and de-auth in less than 0.5 ms.
  42          * It causes problem in the Supplicant
  43          */
  44
  45         msleep_interruptible(1000);
  46         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
  47
  48         /* report disconnect to upper layer */
  49         netif_stop_queue(priv->dev);
  50         netif_carrier_off(priv->dev);
  51
  52         /* Free Tx and Rx packets */
  53         kfree_skb(priv->currenttxskb);
  54         priv->currenttxskb = NULL;
  55         priv->tx_pending_len = 0;
  56
  57         /* reset SNR/NF/RSSI values */
  58         memset(priv->SNR, 0x00, sizeof(priv->SNR));
  59         memset(priv->NF, 0x00, sizeof(priv->NF));
  60         memset(priv->RSSI, 0x00, sizeof(priv->RSSI));
  61         memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
  62         memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
  63         priv->nextSNRNF = 0;
  64         priv->numSNRNF = 0;
  65         priv->connect_status = LBS_DISCONNECTED;
  66
  67         /* Clear out associated SSID and BSSID since connection is
  68          * no longer valid.
  69          */
  70         memset(&priv->curbssparams.bssid, 0, ETH_ALEN);
  71         memset(&priv->curbssparams.ssid, 0, IEEE80211_MAX_SSID_LEN);
  72         priv->curbssparams.ssid_len = 0;
  73
  74         if (priv->psstate != PS_STATE_FULL_POWER) {
  75                 /* make firmware to exit PS mode */
  76                 lbs_deb_cmd("disconnected, so exit PS mode\n");
  77                 lbs_ps_wakeup(priv, 0);
  78         }
  79         lbs_deb_leave(LBS_DEB_ASSOC);
  80 }
  81
  82 /**
  83  *  @brief This function handles MIC failure event.
  84  *
  85  *  @param priv    A pointer to struct lbs_private structure
  86  *  @para  event   the event id
  87  *  @return        n/a
  88  */
  89 static void handle_mic_failureevent(struct lbs_private *priv, u32 event)
  90 {
  91         char buf[50];
  92
  93         lbs_deb_enter(LBS_DEB_CMD);
  94         memset(buf, 0, sizeof(buf));
  95
  96         sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
  97
  98         if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) {
  99                 strcat(buf, "unicast ");
 100         } else {
 101                 strcat(buf, "multicast ");
 102         }
 103
 104         lbs_send_iwevcustom_event(priv, buf);
 105         lbs_deb_leave(LBS_DEB_CMD);
 106 }
 107
 108 static int lbs_ret_reg_access(struct lbs_private *priv,
 109                                u16 type, struct cmd_ds_command *resp)
 110 {
 111         int ret = 0;
 112
 113         lbs_deb_enter(LBS_DEB_CMD);
 114
 115         switch (type) {
 116         case CMD_RET(CMD_MAC_REG_ACCESS):
 117                 {
 118                         struct cmd_ds_mac_reg_access *reg = &resp->params.macreg;
 119
 120                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 121                         priv->offsetvalue.value = le32_to_cpu(reg->value);
 122                         break;
 123                 }
 124
 125         case CMD_RET(CMD_BBP_REG_ACCESS):
 126                 {
 127                         struct cmd_ds_bbp_reg_access *reg = &resp->params.bbpreg;
 128
 129                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 130                         priv->offsetvalue.value = reg->value;
 131                         break;
 132                 }
 133
 134         case CMD_RET(CMD_RF_REG_ACCESS):
 135                 {
 136                         struct cmd_ds_rf_reg_access *reg = &resp->params.rfreg;
 137
 138                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 139                         priv->offsetvalue.value = reg->value;
 140                         break;
 141                 }
 142
 143         default:
 144                 ret = -1;
 145         }
 146
 147         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 148         return ret;
 149 }
 150
 151 static int lbs_ret_802_11_rssi(struct lbs_private *priv,
 152                                 struct cmd_ds_command *resp)
 153 {
 154         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
 155
 156         lbs_deb_enter(LBS_DEB_CMD);
 157
 158         /* store the non average value */
 159         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = get_unaligned_le16(&rssirsp->SNR);
 160         priv->NF[TYPE_BEACON][TYPE_NOAVG] = get_unaligned_le16(&rssirsp->noisefloor);
 161
 162         priv->SNR[TYPE_BEACON][TYPE_AVG] = get_unaligned_le16(&rssirsp->avgSNR);
 163         priv->NF[TYPE_BEACON][TYPE_AVG] = get_unaligned_le16(&rssirsp->avgnoisefloor);
 164
 165         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 166             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
 167                      priv->NF[TYPE_BEACON][TYPE_NOAVG]);
 168
 169         priv->RSSI[TYPE_BEACON][TYPE_AVG] =
 170             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
 171                      priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
 172
 173         lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
 174                priv->RSSI[TYPE_BEACON][TYPE_NOAVG],
 175                priv->RSSI[TYPE_BEACON][TYPE_AVG]);
 176
 177         lbs_deb_leave(LBS_DEB_CMD);
 178         return 0;
 179 }
 180
 181 static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv,
 182                                         struct cmd_ds_command *resp)
 183 {
 184         struct cmd_ds_802_11_beacon_control *bcn_ctrl =
 185             &resp->params.bcn_ctrl;
 186
 187         lbs_deb_enter(LBS_DEB_CMD);
 188
 189         if (bcn_ctrl->action == CMD_ACT_GET) {
 190                 priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable);
 191                 priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period);
 192         }
 193
 194         lbs_deb_enter(LBS_DEB_CMD);
 195         return 0;
 196 }
 197
 198 static inline int handle_cmd_response(struct lbs_private *priv,
 199                                       struct cmd_header *cmd_response)
 200 {
 201         struct cmd_ds_command *resp = (struct cmd_ds_command *) cmd_response;
 202         int ret = 0;
 203         unsigned long flags;
 204         uint16_t respcmd = le16_to_cpu(resp->command);
 205
 206         lbs_deb_enter(LBS_DEB_HOST);
 207
 208         switch (respcmd) {
 209         case CMD_RET(CMD_MAC_REG_ACCESS):
 210         case CMD_RET(CMD_BBP_REG_ACCESS):
 211         case CMD_RET(CMD_RF_REG_ACCESS):
 212                 ret = lbs_ret_reg_access(priv, respcmd, resp);
 213                 break;
 214
 215         case CMD_RET(CMD_802_11_SET_AFC):
 216         case CMD_RET(CMD_802_11_GET_AFC):
 217                 spin_lock_irqsave(&priv->driver_lock, flags);
 218                 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.afc,
 219                         sizeof(struct cmd_ds_802_11_afc));
 220                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 221
 222                 break;
 223
 224         case CMD_RET(CMD_802_11_BEACON_STOP):
 225                 break;
 226
 227         case CMD_RET(CMD_802_11_RSSI):
 228                 ret = lbs_ret_802_11_rssi(priv, resp);
 229                 break;
 230
 231         case CMD_RET(CMD_802_11_TPC_CFG):
 232                 spin_lock_irqsave(&priv->driver_lock, flags);
 233                 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.tpccfg,
 234                         sizeof(struct cmd_ds_802_11_tpc_cfg));
 235                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 236                 break;
 237         case CMD_RET(CMD_802_11_LED_GPIO_CTRL):
 238                 spin_lock_irqsave(&priv->driver_lock, flags);
 239                 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.ledgpio,
 240                         sizeof(struct cmd_ds_802_11_led_ctrl));
 241                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 242                 break;
 243
 244         case CMD_RET(CMD_GET_TSF):
 245                 spin_lock_irqsave(&priv->driver_lock, flags);
 246                 memcpy((void *)priv->cur_cmd->callback_arg,
 247                        &resp->params.gettsf.tsfvalue, sizeof(u64));
 248                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 249                 break;
 250         case CMD_RET(CMD_BT_ACCESS):
 251                 spin_lock_irqsave(&priv->driver_lock, flags);
 252                 if (priv->cur_cmd->callback_arg)
 253                         memcpy((void *)priv->cur_cmd->callback_arg,
 254                                &resp->params.bt.addr1, 2 * ETH_ALEN);
 255                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 256                 break;
 257         case CMD_RET(CMD_FWT_ACCESS):
 258                 spin_lock_irqsave(&priv->driver_lock, flags);
 259                 if (priv->cur_cmd->callback_arg)
 260                         memcpy((void *)priv->cur_cmd->callback_arg, &resp->params.fwt,
 261                                sizeof(resp->params.fwt));
 262                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 263                 break;
 264         case CMD_RET(CMD_802_11_BEACON_CTRL):
 265                 ret = lbs_ret_802_11_bcn_ctrl(priv, resp);
 266                 break;
 267
 268         default:
 269                 lbs_pr_err("CMD_RESP: unknown cmd response 0x%04x\n",
 270                            le16_to_cpu(resp->command));
 271                 break;
 272         }
 273         lbs_deb_leave(LBS_DEB_HOST);
 274         return ret;
 275 }
 276
 277 int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len)
 278 {
 279         uint16_t respcmd, curcmd;
 280         struct cmd_header *resp;
 281         int ret = 0;
 282         unsigned long flags;
 283         uint16_t result;
 284
 285         lbs_deb_enter(LBS_DEB_HOST);
 286
 287         mutex_lock(&priv->lock);
 288         spin_lock_irqsave(&priv->driver_lock, flags);
 289
 290         if (!priv->cur_cmd) {
 291                 lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
 292                 ret = -1;
 293                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 294                 goto done;
 295         }
 296
 297         resp = (void *)data;
 298         curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
 299         respcmd = le16_to_cpu(resp->command);
 300         result = le16_to_cpu(resp->result);
 301
 302         lbs_deb_cmd("CMD_RESP: response 0x%04x, seq %d, size %d\n",
 303                      respcmd, le16_to_cpu(resp->seqnum), len);
 304         lbs_deb_hex(LBS_DEB_CMD, "CMD_RESP", (void *) resp, len);
 305
 306         if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
 307                 lbs_pr_info("Received CMD_RESP with invalid sequence %d (expected %d)\n",
 308                             le16_to_cpu(resp->seqnum), le16_to_cpu(priv->cur_cmd->cmdbuf->seqnum));
 309                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 310                 ret = -1;
 311                 goto done;
 312         }
 313         if (respcmd != CMD_RET(curcmd) &&
 314             respcmd != CMD_RET_802_11_ASSOCIATE && curcmd != CMD_802_11_ASSOCIATE) {
 315                 lbs_pr_info("Invalid CMD_RESP %x to command %x!\n", respcmd, curcmd);
 316                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 317                 ret = -1;
 318                 goto done;
 319         }
 320
 321         if (resp->result == cpu_to_le16(0x0004)) {
 322                 /* 0x0004 means -EAGAIN. Drop the response, let it time out
 323                    and be resubmitted */
 324                 lbs_pr_info("Firmware returns DEFER to command %x. Will let it time out...\n",
 325                             le16_to_cpu(resp->command));
 326                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 327                 ret = -1;
 328                 goto done;
 329         }
 330
 331         /* Now we got response from FW, cancel the command timer */
 332         del_timer(&priv->command_timer);
 333         priv->cmd_timed_out = 0;
 334         if (priv->nr_retries) {
 335                 lbs_pr_info("Received result %x to command %x after %d retries\n",
 336                             result, curcmd, priv->nr_retries);
 337                 priv->nr_retries = 0;
 338         }
 339
 340         /* Store the response code to cur_cmd_retcode. */
 341         priv->cur_cmd_retcode = result;
 342
 343         if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
 344                 struct cmd_ds_802_11_ps_mode *psmode = (void *) &resp[1];
 345                 u16 action = le16_to_cpu(psmode->action);
 346
 347                 lbs_deb_host(
 348                        "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
 349                        result, action);
 350
 351                 if (result) {
 352                         lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
 353                                     result);
 354                         /*
 355                          * We should not re-try enter-ps command in
 356                          * ad-hoc mode. It takes place in
 357                          * lbs_execute_next_command().
 358                          */
 359                         if (priv->mode == IW_MODE_ADHOC &&
 360                             action == CMD_SUBCMD_ENTER_PS)
 361                                 priv->psmode = LBS802_11POWERMODECAM;
 362                 } else if (action == CMD_SUBCMD_ENTER_PS) {
 363                         priv->needtowakeup = 0;
 364                         priv->psstate = PS_STATE_AWAKE;
 365
 366                         lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
 367                         if (priv->connect_status != LBS_CONNECTED) {
 368                                 /*
 369                                  * When Deauth Event received before Enter_PS command
 370                                  * response, We need to wake up the firmware.
 371                                  */
 372                                 lbs_deb_host(
 373                                        "disconnected, invoking lbs_ps_wakeup\n");
 374
 375                                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 376                                 mutex_unlock(&priv->lock);
 377                                 lbs_ps_wakeup(priv, 0);
 378                                 mutex_lock(&priv->lock);
 379                                 spin_lock_irqsave(&priv->driver_lock, flags);
 380                         }
 381                 } else if (action == CMD_SUBCMD_EXIT_PS) {
 382                         priv->needtowakeup = 0;
 383                         priv->psstate = PS_STATE_FULL_POWER;
 384                         lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
 385                 } else {
 386                         lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
 387                 }
 388
 389                 lbs_complete_command(priv, priv->cur_cmd, result);
 390                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 391
 392                 ret = 0;
 393                 goto done;
 394         }
 395
 396         /* If the command is not successful, cleanup and return failure */
 397         if ((result != 0 || !(respcmd & 0x8000))) {
 398                 lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
 399                        result, respcmd);
 400                 /*
 401                  * Handling errors here
 402                  */
 403                 switch (respcmd) {
 404                 case CMD_RET(CMD_GET_HW_SPEC):
 405                 case CMD_RET(CMD_802_11_RESET):
 406                         lbs_deb_host("CMD_RESP: reset failed\n");
 407                         break;
 408
 409                 }
 410                 lbs_complete_command(priv, priv->cur_cmd, result);
 411                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 412
 413                 ret = -1;
 414                 goto done;
 415         }
 416
 417         spin_unlock_irqrestore(&priv->driver_lock, flags);
 418
 419         if (priv->cur_cmd && priv->cur_cmd->callback) {
 420                 ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
 421                                 resp);
 422         } else
 423                 ret = handle_cmd_response(priv, resp);
 424
 425         spin_lock_irqsave(&priv->driver_lock, flags);
 426
 427         if (priv->cur_cmd) {
 428                 /* Clean up and Put current command back to cmdfreeq */
 429                 lbs_complete_command(priv, priv->cur_cmd, result);
 430         }
 431         spin_unlock_irqrestore(&priv->driver_lock, flags);
 432
 433 done:
 434         mutex_unlock(&priv->lock);
 435         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
 436         return ret;
 437 }
 438
 439 static int lbs_send_confirmwake(struct lbs_private *priv)
 440 {
 441         struct cmd_header cmd;
 442         int ret = 0;
 443
 444         lbs_deb_enter(LBS_DEB_HOST);
 445
 446         cmd.command = cpu_to_le16(CMD_802_11_WAKEUP_CONFIRM);
 447         cmd.size = cpu_to_le16(sizeof(cmd));
 448         cmd.seqnum = cpu_to_le16(++priv->seqnum);
 449         cmd.result = 0;
 450
 451         lbs_deb_hex(LBS_DEB_HOST, "wake confirm", (u8 *) &cmd,
 452                 sizeof(cmd));
 453
 454         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &cmd, sizeof(cmd));
 455         if (ret)
 456                 lbs_pr_alert("SEND_WAKEC_CMD: Host to Card failed for Confirm Wake\n");
 457
 458         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
 459         return ret;
 460 }
 461
 462 int lbs_process_event(struct lbs_private *priv, u32 event)
 463 {
 464         int ret = 0;
 465
 466         lbs_deb_enter(LBS_DEB_CMD);
 467
 468         switch (event) {
 469         case MACREG_INT_CODE_LINK_SENSED:
 470                 lbs_deb_cmd("EVENT: link sensed\n");
 471                 break;
 472
 473         case MACREG_INT_CODE_DEAUTHENTICATED:
 474                 lbs_deb_cmd("EVENT: deauthenticated\n");
 475                 lbs_mac_event_disconnected(priv);
 476                 break;
 477
 478         case MACREG_INT_CODE_DISASSOCIATED:
 479                 lbs_deb_cmd("EVENT: disassociated\n");
 480                 lbs_mac_event_disconnected(priv);
 481                 break;
 482
 483         case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
 484                 lbs_deb_cmd("EVENT: link lost\n");
 485                 lbs_mac_event_disconnected(priv);
 486                 break;
 487
 488         case MACREG_INT_CODE_PS_SLEEP:
 489                 lbs_deb_cmd("EVENT: ps sleep\n");
 490
 491                 /* handle unexpected PS SLEEP event */
 492                 if (priv->psstate == PS_STATE_FULL_POWER) {
 493                         lbs_deb_cmd(
 494                                "EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
 495                         break;
 496                 }
 497                 priv->psstate = PS_STATE_PRE_SLEEP;
 498
 499                 lbs_ps_confirm_sleep(priv);
 500
 501                 break;
 502
 503         case MACREG_INT_CODE_HOST_AWAKE:
 504                 lbs_deb_cmd("EVENT: host awake\n");
 505                 if (priv->reset_deep_sleep_wakeup)
 506                         priv->reset_deep_sleep_wakeup(priv);
 507                 priv->is_deep_sleep = 0;
 508                 lbs_send_confirmwake(priv);
 509                 break;
 510
 511         case MACREG_INT_CODE_DEEP_SLEEP_AWAKE:
 512                 if (priv->reset_deep_sleep_wakeup)
 513                         priv->reset_deep_sleep_wakeup(priv);
 514                 lbs_deb_cmd("EVENT: ds awake\n");
 515                 priv->is_deep_sleep = 0;
 516                 priv->wakeup_dev_required = 0;
 517                 wake_up_interruptible(&priv->ds_awake_q);
 518                 break;
 519
 520         case MACREG_INT_CODE_PS_AWAKE:
 521                 lbs_deb_cmd("EVENT: ps awake\n");
 522                 /* handle unexpected PS AWAKE event */
 523                 if (priv->psstate == PS_STATE_FULL_POWER) {
 524                         lbs_deb_cmd(
 525                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
 526                         break;
 527                 }
 528
 529                 priv->psstate = PS_STATE_AWAKE;
 530
 531                 if (priv->needtowakeup) {
 532                         /*
 533                          * wait for the command processing to finish
 534                          * before resuming sending
 535                          * priv->needtowakeup will be set to FALSE
 536                          * in lbs_ps_wakeup()
 537                          */
 538                         lbs_deb_cmd("waking up ...\n");
 539                         lbs_ps_wakeup(priv, 0);
 540                 }
 541                 break;
 542
 543         case MACREG_INT_CODE_MIC_ERR_UNICAST:
 544                 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
 545                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
 546                 break;
 547
 548         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
 549                 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
 550                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 551                 break;
 552
 553         case MACREG_INT_CODE_MIB_CHANGED:
 554                 lbs_deb_cmd("EVENT: MIB CHANGED\n");
 555                 break;
 556         case MACREG_INT_CODE_INIT_DONE:
 557                 lbs_deb_cmd("EVENT: INIT DONE\n");
 558                 break;
 559         case MACREG_INT_CODE_ADHOC_BCN_LOST:
 560                 lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
 561                 break;
 562         case MACREG_INT_CODE_RSSI_LOW:
 563                 lbs_pr_alert("EVENT: rssi low\n");
 564                 break;
 565         case MACREG_INT_CODE_SNR_LOW:
 566                 lbs_pr_alert("EVENT: snr low\n");
 567                 break;
 568         case MACREG_INT_CODE_MAX_FAIL:
 569                 lbs_pr_alert("EVENT: max fail\n");
 570                 break;
 571         case MACREG_INT_CODE_RSSI_HIGH:
 572                 lbs_pr_alert("EVENT: rssi high\n");
 573                 break;
 574         case MACREG_INT_CODE_SNR_HIGH:
 575                 lbs_pr_alert("EVENT: snr high\n");
 576                 break;
 577
 578         case MACREG_INT_CODE_MESH_AUTO_STARTED:
 579                 /* Ignore spurious autostart events if autostart is disabled */
 580                 if (!priv->mesh_autostart_enabled) {
 581                         lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
 582                         break;
 583                 }
 584                 lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
 585                 priv->mesh_connect_status = LBS_CONNECTED;
 586                 if (priv->mesh_open) {
 587                         netif_carrier_on(priv->mesh_dev);
 588                         if (!priv->tx_pending_len)
 589                                 netif_wake_queue(priv->mesh_dev);
 590                 }
 591                 priv->mode = IW_MODE_ADHOC;
 592                 schedule_work(&priv->sync_channel);
 593                 break;
 594
 595         default:
 596                 lbs_pr_alert("EVENT: unknown event id %d\n", event);
 597                 break;
 598         }
 599
 600         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 601         return ret;
 602 }