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/if_arp.h>
   7 #include <linux/netdevice.h>
   8 #include <asm/unaligned.h>
   9 #include <net/iw_handler.h>
  10
  11 #include "host.h"
  12 #include "decl.h"
  13 #include "defs.h"
  14 #include "dev.h"
  15 #include "assoc.h"
  16 #include "wext.h"
  17
  18 /**
  19  *  @brief This function handles disconnect event. it
  20  *  reports disconnect to upper layer, clean tx/rx packets,
  21  *  reset link state etc.
  22  *
  23  *  @param priv    A pointer to struct lbs_private structure
  24  *  @return        n/a
  25  */
  26 void lbs_mac_event_disconnected(struct lbs_private *priv)
  27 {
  28         union iwreq_data wrqu;
  29
  30         if (priv->connect_status != LBS_CONNECTED)
  31                 return;
  32
  33         lbs_deb_enter(LBS_DEB_ASSOC);
  34
  35         memset(wrqu.ap_addr.sa_data, 0x00, ETH_ALEN);
  36         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
  37
  38         /*
  39          * Cisco AP sends EAP failure and de-auth in less than 0.5 ms.
  40          * It causes problem in the Supplicant
  41          */
  42
  43         msleep_interruptible(1000);
  44         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
  45
  46         /* report disconnect to upper layer */
  47         netif_stop_queue(priv->dev);
  48         netif_carrier_off(priv->dev);
  49
  50         /* Free Tx and Rx packets */
  51         kfree_skb(priv->currenttxskb);
  52         priv->currenttxskb = NULL;
  53         priv->tx_pending_len = 0;
  54
  55         /* reset SNR/NF/RSSI values */
  56         memset(priv->SNR, 0x00, sizeof(priv->SNR));
  57         memset(priv->NF, 0x00, sizeof(priv->NF));
  58         memset(priv->RSSI, 0x00, sizeof(priv->RSSI));
  59         memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
  60         memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
  61         priv->nextSNRNF = 0;
  62         priv->numSNRNF = 0;
  63         priv->connect_status = LBS_DISCONNECTED;
  64
  65         /* Clear out associated SSID and BSSID since connection is
  66          * no longer valid.
  67          */
  68         memset(&priv->curbssparams.bssid, 0, ETH_ALEN);
  69         memset(&priv->curbssparams.ssid, 0, IW_ESSID_MAX_SIZE);
  70         priv->curbssparams.ssid_len = 0;
  71
  72         if (priv->psstate != PS_STATE_FULL_POWER) {
  73                 /* make firmware to exit PS mode */
  74                 lbs_deb_cmd("disconnected, so exit PS mode\n");
  75                 lbs_ps_wakeup(priv, 0);
  76         }
  77         lbs_deb_leave(LBS_DEB_ASSOC);
  78 }
  79
  80 /**
  81  *  @brief This function handles MIC failure event.
  82  *
  83  *  @param priv    A pointer to struct lbs_private structure
  84  *  @para  event   the event id
  85  *  @return        n/a
  86  */
  87 static void handle_mic_failureevent(struct lbs_private *priv, u32 event)
  88 {
  89         char buf[50];
  90
  91         lbs_deb_enter(LBS_DEB_CMD);
  92         memset(buf, 0, sizeof(buf));
  93
  94         sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
  95
  96         if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) {
  97                 strcat(buf, "unicast ");
  98         } else {
  99                 strcat(buf, "multicast ");
 100         }
 101
 102         lbs_send_iwevcustom_event(priv, buf);
 103         lbs_deb_leave(LBS_DEB_CMD);
 104 }
 105
 106 static int lbs_ret_reg_access(struct lbs_private *priv,
 107                                u16 type, struct cmd_ds_command *resp)
 108 {
 109         int ret = 0;
 110
 111         lbs_deb_enter(LBS_DEB_CMD);
 112
 113         switch (type) {
 114         case CMD_RET(CMD_MAC_REG_ACCESS):
 115                 {
 116                         struct cmd_ds_mac_reg_access *reg = &resp->params.macreg;
 117
 118                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 119                         priv->offsetvalue.value = le32_to_cpu(reg->value);
 120                         break;
 121                 }
 122
 123         case CMD_RET(CMD_BBP_REG_ACCESS):
 124                 {
 125                         struct cmd_ds_bbp_reg_access *reg = &resp->params.bbpreg;
 126
 127                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 128                         priv->offsetvalue.value = reg->value;
 129                         break;
 130                 }
 131
 132         case CMD_RET(CMD_RF_REG_ACCESS):
 133                 {
 134                         struct cmd_ds_rf_reg_access *reg = &resp->params.rfreg;
 135
 136                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 137                         priv->offsetvalue.value = reg->value;
 138                         break;
 139                 }
 140
 141         default:
 142                 ret = -1;
 143         }
 144
 145         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 146         return ret;
 147 }
 148
 149 static int lbs_ret_802_11_rssi(struct lbs_private *priv,
 150                                 struct cmd_ds_command *resp)
 151 {
 152         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
 153
 154         lbs_deb_enter(LBS_DEB_CMD);
 155
 156         /* store the non average value */
 157         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = get_unaligned_le16(&rssirsp->SNR);
 158         priv->NF[TYPE_BEACON][TYPE_NOAVG] = get_unaligned_le16(&rssirsp->noisefloor);
 159
 160         priv->SNR[TYPE_BEACON][TYPE_AVG] = get_unaligned_le16(&rssirsp->avgSNR);
 161         priv->NF[TYPE_BEACON][TYPE_AVG] = get_unaligned_le16(&rssirsp->avgnoisefloor);
 162
 163         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 164             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
 165                      priv->NF[TYPE_BEACON][TYPE_NOAVG]);
 166
 167         priv->RSSI[TYPE_BEACON][TYPE_AVG] =
 168             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
 169                      priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
 170
 171         lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
 172                priv->RSSI[TYPE_BEACON][TYPE_NOAVG],
 173                priv->RSSI[TYPE_BEACON][TYPE_AVG]);
 174
 175         lbs_deb_leave(LBS_DEB_CMD);
 176         return 0;
 177 }
 178
 179 static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv,
 180                                         struct cmd_ds_command *resp)
 181 {
 182         struct cmd_ds_802_11_beacon_control *bcn_ctrl =
 183             &resp->params.bcn_ctrl;
 184
 185         lbs_deb_enter(LBS_DEB_CMD);
 186
 187         if (bcn_ctrl->action == CMD_ACT_GET) {
 188                 priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable);
 189                 priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period);
 190         }
 191
 192         lbs_deb_enter(LBS_DEB_CMD);
 193         return 0;
 194 }
 195
 196 static inline int handle_cmd_response(struct lbs_private *priv,
 197                                       struct cmd_header *cmd_response)
 198 {
 199         struct cmd_ds_command *resp = (struct cmd_ds_command *) cmd_response;
 200         int ret = 0;
 201         unsigned long flags;
 202         uint16_t respcmd = le16_to_cpu(resp->command);
 203
 204         lbs_deb_enter(LBS_DEB_HOST);
 205
 206         switch (respcmd) {
 207         case CMD_RET(CMD_MAC_REG_ACCESS):
 208         case CMD_RET(CMD_BBP_REG_ACCESS):
 209         case CMD_RET(CMD_RF_REG_ACCESS):
 210                 ret = lbs_ret_reg_access(priv, respcmd, resp);
 211                 break;
 212
 213         case CMD_RET(CMD_802_11_SET_AFC):
 214         case CMD_RET(CMD_802_11_GET_AFC):
 215                 spin_lock_irqsave(&priv->driver_lock, flags);
 216                 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.afc,
 217                         sizeof(struct cmd_ds_802_11_afc));
 218                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 219
 220                 break;
 221
 222         case CMD_RET(CMD_802_11_BEACON_STOP):
 223                 break;
 224
 225         case CMD_RET(CMD_802_11_RSSI):
 226                 ret = lbs_ret_802_11_rssi(priv, resp);
 227                 break;
 228
 229         case CMD_RET(CMD_802_11D_DOMAIN_INFO):
 230                 ret = lbs_ret_802_11d_domain_info(resp);
 231                 break;
 232
 233         case CMD_RET(CMD_802_11_TPC_CFG):
 234                 spin_lock_irqsave(&priv->driver_lock, flags);
 235                 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.tpccfg,
 236                         sizeof(struct cmd_ds_802_11_tpc_cfg));
 237                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 238                 break;
 239         case CMD_RET(CMD_802_11_LED_GPIO_CTRL):
 240                 spin_lock_irqsave(&priv->driver_lock, flags);
 241                 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.ledgpio,
 242                         sizeof(struct cmd_ds_802_11_led_ctrl));
 243                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 244                 break;
 245
 246         case CMD_RET(CMD_GET_TSF):
 247                 spin_lock_irqsave(&priv->driver_lock, flags);
 248                 memcpy((void *)priv->cur_cmd->callback_arg,
 249                        &resp->params.gettsf.tsfvalue, sizeof(u64));
 250                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 251                 break;
 252         case CMD_RET(CMD_BT_ACCESS):
 253                 spin_lock_irqsave(&priv->driver_lock, flags);
 254                 if (priv->cur_cmd->callback_arg)
 255                         memcpy((void *)priv->cur_cmd->callback_arg,
 256                                &resp->params.bt.addr1, 2 * ETH_ALEN);
 257                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 258                 break;
 259         case CMD_RET(CMD_FWT_ACCESS):
 260                 spin_lock_irqsave(&priv->driver_lock, flags);
 261                 if (priv->cur_cmd->callback_arg)
 262                         memcpy((void *)priv->cur_cmd->callback_arg, &resp->params.fwt,
 263                                sizeof(resp->params.fwt));
 264                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 265                 break;
 266         case CMD_RET(CMD_802_11_BEACON_CTRL):
 267                 ret = lbs_ret_802_11_bcn_ctrl(priv, resp);
 268                 break;
 269
 270         default:
 271                 lbs_pr_err("CMD_RESP: unknown cmd response 0x%04x\n",
 272                            le16_to_cpu(resp->command));
 273                 break;
 274         }
 275         lbs_deb_leave(LBS_DEB_HOST);
 276         return ret;
 277 }
 278
 279 int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len)
 280 {
 281         uint16_t respcmd, curcmd;
 282         struct cmd_header *resp;
 283         int ret = 0;
 284         unsigned long flags;
 285         uint16_t result;
 286
 287         lbs_deb_enter(LBS_DEB_HOST);
 288
 289         mutex_lock(&priv->lock);
 290         spin_lock_irqsave(&priv->driver_lock, flags);
 291
 292         if (!priv->cur_cmd) {
 293                 lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
 294                 ret = -1;
 295                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 296                 goto done;
 297         }
 298
 299         resp = (void *)data;
 300         curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
 301         respcmd = le16_to_cpu(resp->command);
 302         result = le16_to_cpu(resp->result);
 303
 304         lbs_deb_cmd("CMD_RESP: response 0x%04x, seq %d, size %d\n",
 305                      respcmd, le16_to_cpu(resp->seqnum), len);
 306         lbs_deb_hex(LBS_DEB_CMD, "CMD_RESP", (void *) resp, len);
 307
 308         if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
 309                 lbs_pr_info("Received CMD_RESP with invalid sequence %d (expected %d)\n",
 310                             le16_to_cpu(resp->seqnum), le16_to_cpu(priv->cur_cmd->cmdbuf->seqnum));
 311                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 312                 ret = -1;
 313                 goto done;
 314         }
 315         if (respcmd != CMD_RET(curcmd) &&
 316             respcmd != CMD_RET_802_11_ASSOCIATE && curcmd != CMD_802_11_ASSOCIATE) {
 317                 lbs_pr_info("Invalid CMD_RESP %x to command %x!\n", respcmd, curcmd);
 318                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 319                 ret = -1;
 320                 goto done;
 321         }
 322
 323         if (resp->result == cpu_to_le16(0x0004)) {
 324                 /* 0x0004 means -EAGAIN. Drop the response, let it time out
 325                    and be resubmitted */
 326                 lbs_pr_info("Firmware returns DEFER to command %x. Will let it time out...\n",
 327                             le16_to_cpu(resp->command));
 328                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 329                 ret = -1;
 330                 goto done;
 331         }
 332
 333         /* Now we got response from FW, cancel the command timer */
 334         del_timer(&priv->command_timer);
 335         priv->cmd_timed_out = 0;
 336         if (priv->nr_retries) {
 337                 lbs_pr_info("Received result %x to command %x after %d retries\n",
 338                             result, curcmd, priv->nr_retries);
 339                 priv->nr_retries = 0;
 340         }
 341
 342         /* Store the response code to cur_cmd_retcode. */
 343         priv->cur_cmd_retcode = result;
 344
 345         if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
 346                 struct cmd_ds_802_11_ps_mode *psmode = (void *) &resp[1];
 347                 u16 action = le16_to_cpu(psmode->action);
 348
 349                 lbs_deb_host(
 350                        "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
 351                        result, action);
 352
 353                 if (result) {
 354                         lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
 355                                     result);
 356                         /*
 357                          * We should not re-try enter-ps command in
 358                          * ad-hoc mode. It takes place in
 359                          * lbs_execute_next_command().
 360                          */
 361                         if (priv->mode == IW_MODE_ADHOC &&
 362                             action == CMD_SUBCMD_ENTER_PS)
 363                                 priv->psmode = LBS802_11POWERMODECAM;
 364                 } else if (action == CMD_SUBCMD_ENTER_PS) {
 365                         priv->needtowakeup = 0;
 366                         priv->psstate = PS_STATE_AWAKE;
 367
 368                         lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
 369                         if (priv->connect_status != LBS_CONNECTED) {
 370                                 /*
 371                                  * When Deauth Event received before Enter_PS command
 372                                  * response, We need to wake up the firmware.
 373                                  */
 374                                 lbs_deb_host(
 375                                        "disconnected, invoking lbs_ps_wakeup\n");
 376
 377                                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 378                                 mutex_unlock(&priv->lock);
 379                                 lbs_ps_wakeup(priv, 0);
 380                                 mutex_lock(&priv->lock);
 381                                 spin_lock_irqsave(&priv->driver_lock, flags);
 382                         }
 383                 } else if (action == CMD_SUBCMD_EXIT_PS) {
 384                         priv->needtowakeup = 0;
 385                         priv->psstate = PS_STATE_FULL_POWER;
 386                         lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
 387                 } else {
 388                         lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
 389                 }
 390
 391                 lbs_complete_command(priv, priv->cur_cmd, result);
 392                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 393
 394                 ret = 0;
 395                 goto done;
 396         }
 397
 398         /* If the command is not successful, cleanup and return failure */
 399         if ((result != 0 || !(respcmd & 0x8000))) {
 400                 lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
 401                        result, respcmd);
 402                 /*
 403                  * Handling errors here
 404                  */
 405                 switch (respcmd) {
 406                 case CMD_RET(CMD_GET_HW_SPEC):
 407                 case CMD_RET(CMD_802_11_RESET):
 408                         lbs_deb_host("CMD_RESP: reset failed\n");
 409                         break;
 410
 411                 }
 412                 lbs_complete_command(priv, priv->cur_cmd, result);
 413                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 414
 415                 ret = -1;
 416                 goto done;
 417         }
 418
 419         spin_unlock_irqrestore(&priv->driver_lock, flags);
 420
 421         if (priv->cur_cmd && priv->cur_cmd->callback) {
 422                 ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
 423                                 resp);
 424         } else
 425                 ret = handle_cmd_response(priv, resp);
 426
 427         spin_lock_irqsave(&priv->driver_lock, flags);
 428
 429         if (priv->cur_cmd) {
 430                 /* Clean up and Put current command back to cmdfreeq */
 431                 lbs_complete_command(priv, priv->cur_cmd, result);
 432         }
 433         spin_unlock_irqrestore(&priv->driver_lock, flags);
 434
 435 done:
 436         mutex_unlock(&priv->lock);
 437         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
 438         return ret;
 439 }
 440
 441 static int lbs_send_confirmwake(struct lbs_private *priv)
 442 {
 443         struct cmd_header cmd;
 444         int ret = 0;
 445
 446         lbs_deb_enter(LBS_DEB_HOST);
 447
 448         cmd.command = cpu_to_le16(CMD_802_11_WAKEUP_CONFIRM);
 449         cmd.size = cpu_to_le16(sizeof(cmd));
 450         cmd.seqnum = cpu_to_le16(++priv->seqnum);
 451         cmd.result = 0;
 452
 453         lbs_deb_hex(LBS_DEB_HOST, "wake confirm", (u8 *) &cmd,
 454                 sizeof(cmd));
 455
 456         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &cmd, sizeof(cmd));
 457         if (ret)
 458                 lbs_pr_alert("SEND_WAKEC_CMD: Host to Card failed for Confirm Wake\n");
 459
 460         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
 461         return ret;
 462 }
 463
 464 int lbs_process_event(struct lbs_private *priv, u32 event)
 465 {
 466         int ret = 0;
 467
 468         lbs_deb_enter(LBS_DEB_CMD);
 469
 470         switch (event) {
 471         case MACREG_INT_CODE_LINK_SENSED:
 472                 lbs_deb_cmd("EVENT: link sensed\n");
 473                 break;
 474
 475         case MACREG_INT_CODE_DEAUTHENTICATED:
 476                 lbs_deb_cmd("EVENT: deauthenticated\n");
 477                 lbs_mac_event_disconnected(priv);
 478                 break;
 479
 480         case MACREG_INT_CODE_DISASSOCIATED:
 481                 lbs_deb_cmd("EVENT: disassociated\n");
 482                 lbs_mac_event_disconnected(priv);
 483                 break;
 484
 485         case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
 486                 lbs_deb_cmd("EVENT: link lost\n");
 487                 lbs_mac_event_disconnected(priv);
 488                 break;
 489
 490         case MACREG_INT_CODE_PS_SLEEP:
 491                 lbs_deb_cmd("EVENT: ps sleep\n");
 492
 493                 /* handle unexpected PS SLEEP event */
 494                 if (priv->psstate == PS_STATE_FULL_POWER) {
 495                         lbs_deb_cmd(
 496                                "EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
 497                         break;
 498                 }
 499                 priv->psstate = PS_STATE_PRE_SLEEP;
 500
 501                 lbs_ps_confirm_sleep(priv);
 502
 503                 break;
 504
 505         case MACREG_INT_CODE_HOST_AWAKE:
 506                 lbs_deb_cmd("EVENT: host awake\n");
 507                 lbs_send_confirmwake(priv);
 508                 break;
 509
 510         case MACREG_INT_CODE_PS_AWAKE:
 511                 lbs_deb_cmd("EVENT: ps awake\n");
 512                 /* handle unexpected PS AWAKE event */
 513                 if (priv->psstate == PS_STATE_FULL_POWER) {
 514                         lbs_deb_cmd(
 515                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
 516                         break;
 517                 }
 518
 519                 priv->psstate = PS_STATE_AWAKE;
 520
 521                 if (priv->needtowakeup) {
 522                         /*
 523                          * wait for the command processing to finish
 524                          * before resuming sending
 525                          * priv->needtowakeup will be set to FALSE
 526                          * in lbs_ps_wakeup()
 527                          */
 528                         lbs_deb_cmd("waking up ...\n");
 529                         lbs_ps_wakeup(priv, 0);
 530                 }
 531                 break;
 532
 533         case MACREG_INT_CODE_MIC_ERR_UNICAST:
 534                 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
 535                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
 536                 break;
 537
 538         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
 539                 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
 540                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 541                 break;
 542
 543         case MACREG_INT_CODE_MIB_CHANGED:
 544                 lbs_deb_cmd("EVENT: MIB CHANGED\n");
 545                 break;
 546         case MACREG_INT_CODE_INIT_DONE:
 547                 lbs_deb_cmd("EVENT: INIT DONE\n");
 548                 break;
 549         case MACREG_INT_CODE_ADHOC_BCN_LOST:
 550                 lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
 551                 break;
 552         case MACREG_INT_CODE_RSSI_LOW:
 553                 lbs_pr_alert("EVENT: rssi low\n");
 554                 break;
 555         case MACREG_INT_CODE_SNR_LOW:
 556                 lbs_pr_alert("EVENT: snr low\n");
 557                 break;
 558         case MACREG_INT_CODE_MAX_FAIL:
 559                 lbs_pr_alert("EVENT: max fail\n");
 560                 break;
 561         case MACREG_INT_CODE_RSSI_HIGH:
 562                 lbs_pr_alert("EVENT: rssi high\n");
 563                 break;
 564         case MACREG_INT_CODE_SNR_HIGH:
 565                 lbs_pr_alert("EVENT: snr high\n");
 566                 break;
 567
 568         case MACREG_INT_CODE_MESH_AUTO_STARTED:
 569                 /* Ignore spurious autostart events if autostart is disabled */
 570                 if (!priv->mesh_autostart_enabled) {
 571                         lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
 572                         break;
 573                 }
 574                 lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
 575                 priv->mesh_connect_status = LBS_CONNECTED;
 576                 if (priv->mesh_open) {
 577                         netif_carrier_on(priv->mesh_dev);
 578                         if (!priv->tx_pending_len)
 579                                 netif_wake_queue(priv->mesh_dev);
 580                 }
 581                 priv->mode = IW_MODE_ADHOC;
 582                 schedule_work(&priv->sync_channel);
 583                 break;
 584
 585         default:
 586                 lbs_pr_alert("EVENT: unknown event id %d\n", event);
 587                 break;
 588         }
 589
 590         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 591         return ret;
 592 }