err.no Git - linux-2.6/blob - 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
   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  66          * no longer valid.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_snmp_mib(struct lbs_private *priv,
 150                                     struct cmd_ds_command *resp)
 151 {
 152         struct cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
 153         u16 oid = le16_to_cpu(smib->oid);
 154         u16 querytype = le16_to_cpu(smib->querytype);
 155
 156         lbs_deb_enter(LBS_DEB_CMD);
 157
 158         lbs_deb_cmd("SNMP_RESP: oid 0x%x, querytype 0x%x\n", oid,
 159                querytype);
 160         lbs_deb_cmd("SNMP_RESP: Buf size %d\n", le16_to_cpu(smib->bufsize));
 161
 162         if (querytype == CMD_ACT_GET) {
 163                 switch (oid) {
 164                 case FRAGTHRESH_I:
 165                         priv->fragthsd =
 166                                 le16_to_cpu(*((__le16 *)(smib->value)));
 167                         lbs_deb_cmd("SNMP_RESP: frag threshold %u\n",
 168                                     priv->fragthsd);
 169                         break;
 170                 case RTSTHRESH_I:
 171                         priv->rtsthsd =
 172                                 le16_to_cpu(*((__le16 *)(smib->value)));
 173                         lbs_deb_cmd("SNMP_RESP: rts threshold %u\n",
 174                                     priv->rtsthsd);
 175                         break;
 176                 case SHORT_RETRYLIM_I:
 177                         priv->txretrycount =
 178                                 le16_to_cpu(*((__le16 *)(smib->value)));
 179                         lbs_deb_cmd("SNMP_RESP: tx retry count %u\n",
 180                                     priv->rtsthsd);
 181                         break;
 182                 default:
 183                         break;
 184                 }
 185         }
 186
 187         lbs_deb_enter(LBS_DEB_CMD);
 188         return 0;
 189 }
 190
 191 static int lbs_ret_802_11_rf_tx_power(struct lbs_private *priv,
 192                                        struct cmd_ds_command *resp)
 193 {
 194         struct cmd_ds_802_11_rf_tx_power *rtp = &resp->params.txp;
 195
 196         lbs_deb_enter(LBS_DEB_CMD);
 197
 198         priv->txpowerlevel = le16_to_cpu(rtp->currentlevel);
 199
 200         lbs_deb_cmd("TX power currently %d\n", priv->txpowerlevel);
 201
 202         lbs_deb_leave(LBS_DEB_CMD);
 203         return 0;
 204 }
 205
 206 static int lbs_ret_802_11_rate_adapt_rateset(struct lbs_private *priv,
 207                                               struct cmd_ds_command *resp)
 208 {
 209         struct cmd_ds_802_11_rate_adapt_rateset *rates = &resp->params.rateset;
 210
 211         lbs_deb_enter(LBS_DEB_CMD);
 212
 213         if (rates->action == CMD_ACT_GET) {
 214                 priv->enablehwauto = le16_to_cpu(rates->enablehwauto);
 215                 priv->ratebitmap = le16_to_cpu(rates->bitmap);
 216         }
 217
 218         lbs_deb_leave(LBS_DEB_CMD);
 219         return 0;
 220 }
 221
 222 static int lbs_ret_802_11_rssi(struct lbs_private *priv,
 223                                 struct cmd_ds_command *resp)
 224 {
 225         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
 226
 227         lbs_deb_enter(LBS_DEB_CMD);
 228
 229         /* store the non average value */
 230         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
 231         priv->NF[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->noisefloor);
 232
 233         priv->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
 234         priv->NF[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgnoisefloor);
 235
 236         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 237             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
 238                      priv->NF[TYPE_BEACON][TYPE_NOAVG]);
 239
 240         priv->RSSI[TYPE_BEACON][TYPE_AVG] =
 241             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
 242                      priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
 243
 244         lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
 245                priv->RSSI[TYPE_BEACON][TYPE_NOAVG],
 246                priv->RSSI[TYPE_BEACON][TYPE_AVG]);
 247
 248         lbs_deb_leave(LBS_DEB_CMD);
 249         return 0;
 250 }
 251
 252 static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv,
 253                                         struct cmd_ds_command *resp)
 254 {
 255         struct cmd_ds_802_11_beacon_control *bcn_ctrl =
 256             &resp->params.bcn_ctrl;
 257
 258         lbs_deb_enter(LBS_DEB_CMD);
 259
 260         if (bcn_ctrl->action == CMD_ACT_GET) {
 261                 priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable);
 262                 priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period);
 263         }
 264
 265         lbs_deb_enter(LBS_DEB_CMD);
 266         return 0;
 267 }
 268
 269 static inline int handle_cmd_response(struct lbs_private *priv,
 270                                       struct cmd_header *cmd_response)
 271 {
 272         struct cmd_ds_command *resp = (struct cmd_ds_command *) cmd_response;
 273         int ret = 0;
 274         unsigned long flags;
 275         uint16_t respcmd = le16_to_cpu(resp->command);
 276
 277         lbs_deb_enter(LBS_DEB_HOST);
 278
 279         switch (respcmd) {
 280         case CMD_RET(CMD_MAC_REG_ACCESS):
 281         case CMD_RET(CMD_BBP_REG_ACCESS):
 282         case CMD_RET(CMD_RF_REG_ACCESS):
 283                 ret = lbs_ret_reg_access(priv, respcmd, resp);
 284                 break;
 285
 286         case CMD_RET_802_11_ASSOCIATE:
 287         case CMD_RET(CMD_802_11_ASSOCIATE):
 288         case CMD_RET(CMD_802_11_REASSOCIATE):
 289                 ret = lbs_ret_80211_associate(priv, resp);
 290                 break;
 291
 292         case CMD_RET(CMD_802_11_DISASSOCIATE):
 293         case CMD_RET(CMD_802_11_DEAUTHENTICATE):
 294                 ret = lbs_ret_80211_disassociate(priv);
 295                 break;
 296
 297         case CMD_RET(CMD_802_11_AD_HOC_START):
 298         case CMD_RET(CMD_802_11_AD_HOC_JOIN):
 299                 ret = lbs_ret_80211_ad_hoc_start(priv, resp);
 300                 break;
 301
 302         case CMD_RET(CMD_802_11_SNMP_MIB):
 303                 ret = lbs_ret_802_11_snmp_mib(priv, resp);
 304                 break;
 305
 306         case CMD_RET(CMD_802_11_RF_TX_POWER):
 307                 ret = lbs_ret_802_11_rf_tx_power(priv, resp);
 308                 break;
 309
 310         case CMD_RET(CMD_802_11_SET_AFC):
 311         case CMD_RET(CMD_802_11_GET_AFC):
 312                 spin_lock_irqsave(&priv->driver_lock, flags);
 313                 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.afc,
 314                         sizeof(struct cmd_ds_802_11_afc));
 315                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 316
 317                 break;
 318
 319         case CMD_RET(CMD_802_11_RESET):
 320         case CMD_RET(CMD_802_11_AUTHENTICATE):
 321         case CMD_RET(CMD_802_11_BEACON_STOP):
 322                 break;
 323
 324         case CMD_RET(CMD_802_11_RATE_ADAPT_RATESET):
 325                 ret = lbs_ret_802_11_rate_adapt_rateset(priv, resp);
 326                 break;
 327
 328         case CMD_RET(CMD_802_11_RSSI):
 329                 ret = lbs_ret_802_11_rssi(priv, resp);
 330                 break;
 331
 332         case CMD_RET(CMD_802_11_AD_HOC_STOP):
 333                 ret = lbs_ret_80211_ad_hoc_stop(priv);
 334                 break;
 335
 336         case CMD_RET(CMD_802_11D_DOMAIN_INFO):
 337                 ret = lbs_ret_802_11d_domain_info(resp);
 338                 break;
 339
 340         case CMD_RET(CMD_802_11_TPC_CFG):
 341                 spin_lock_irqsave(&priv->driver_lock, flags);
 342                 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.tpccfg,
 343                         sizeof(struct cmd_ds_802_11_tpc_cfg));
 344                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 345                 break;
 346         case CMD_RET(CMD_802_11_LED_GPIO_CTRL):
 347                 spin_lock_irqsave(&priv->driver_lock, flags);
 348                 memmove((void *)priv->cur_cmd->callback_arg, &resp->params.ledgpio,
 349                         sizeof(struct cmd_ds_802_11_led_ctrl));
 350                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 351                 break;
 352
 353         case CMD_RET(CMD_GET_TSF):
 354                 spin_lock_irqsave(&priv->driver_lock, flags);
 355                 memcpy((void *)priv->cur_cmd->callback_arg,
 356                        &resp->params.gettsf.tsfvalue, sizeof(u64));
 357                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 358                 break;
 359         case CMD_RET(CMD_BT_ACCESS):
 360                 spin_lock_irqsave(&priv->driver_lock, flags);
 361                 if (priv->cur_cmd->callback_arg)
 362                         memcpy((void *)priv->cur_cmd->callback_arg,
 363                                &resp->params.bt.addr1, 2 * ETH_ALEN);
 364                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 365                 break;
 366         case CMD_RET(CMD_FWT_ACCESS):
 367                 spin_lock_irqsave(&priv->driver_lock, flags);
 368                 if (priv->cur_cmd->callback_arg)
 369                         memcpy((void *)priv->cur_cmd->callback_arg, &resp->params.fwt,
 370                                sizeof(resp->params.fwt));
 371                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 372                 break;
 373         case CMD_RET(CMD_802_11_BEACON_CTRL):
 374                 ret = lbs_ret_802_11_bcn_ctrl(priv, resp);
 375                 break;
 376
 377         default:
 378                 lbs_pr_err("CMD_RESP: unknown cmd response 0x%04x\n",
 379                            le16_to_cpu(resp->command));
 380                 break;
 381         }
 382         lbs_deb_leave(LBS_DEB_HOST);
 383         return ret;
 384 }
 385
 386 int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len)
 387 {
 388         uint16_t respcmd, curcmd;
 389         struct cmd_header *resp;
 390         int ret = 0;
 391         unsigned long flags;
 392         uint16_t result;
 393
 394         lbs_deb_enter(LBS_DEB_HOST);
 395
 396         mutex_lock(&priv->lock);
 397         spin_lock_irqsave(&priv->driver_lock, flags);
 398
 399         if (!priv->cur_cmd) {
 400                 lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
 401                 ret = -1;
 402                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 403                 goto done;
 404         }
 405
 406         resp = (void *)data;
 407         curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
 408         respcmd = le16_to_cpu(resp->command);
 409         result = le16_to_cpu(resp->result);
 410
 411         lbs_deb_cmd("CMD_RESP: response 0x%04x, seq %d, size %d\n",
 412                      respcmd, le16_to_cpu(resp->seqnum), len);
 413         lbs_deb_hex(LBS_DEB_CMD, "CMD_RESP", (void *) resp, len);
 414
 415         if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
 416                 lbs_pr_info("Received CMD_RESP with invalid sequence %d (expected %d)\n",
 417                             le16_to_cpu(resp->seqnum), le16_to_cpu(priv->cur_cmd->cmdbuf->seqnum));
 418                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 419                 ret = -1;
 420                 goto done;
 421         }
 422         if (respcmd != CMD_RET(curcmd) &&
 423             respcmd != CMD_RET_802_11_ASSOCIATE && curcmd != CMD_802_11_ASSOCIATE) {
 424                 lbs_pr_info("Invalid CMD_RESP %x to command %x!\n", respcmd, curcmd);
 425                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 426                 ret = -1;
 427                 goto done;
 428         }
 429
 430         if (resp->result == cpu_to_le16(0x0004)) {
 431                 /* 0x0004 means -EAGAIN. Drop the response, let it time out
 432                    and be resubmitted */
 433                 lbs_pr_info("Firmware returns DEFER to command %x. Will let it time out...\n",
 434                             le16_to_cpu(resp->command));
 435                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 436                 ret = -1;
 437                 goto done;
 438         }
 439
 440         /* Now we got response from FW, cancel the command timer */
 441         del_timer(&priv->command_timer);
 442         priv->cmd_timed_out = 0;
 443         if (priv->nr_retries) {
 444                 lbs_pr_info("Received result %x to command %x after %d retries\n",
 445                             result, curcmd, priv->nr_retries);
 446                 priv->nr_retries = 0;
 447         }
 448
 449         /* Store the response code to cur_cmd_retcode. */
 450         priv->cur_cmd_retcode = result;
 451
 452         if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
 453                 struct cmd_ds_802_11_ps_mode *psmode = (void *) &resp[1];
 454                 u16 action = le16_to_cpu(psmode->action);
 455
 456                 lbs_deb_host(
 457                        "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
 458                        result, action);
 459
 460                 if (result) {
 461                         lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
 462                                     result);
 463                         /*
 464                          * We should not re-try enter-ps command in
 465                          * ad-hoc mode. It takes place in
 466                          * lbs_execute_next_command().
 467                          */
 468                         if (priv->mode == IW_MODE_ADHOC &&
 469                             action == CMD_SUBCMD_ENTER_PS)
 470                                 priv->psmode = LBS802_11POWERMODECAM;
 471                 } else if (action == CMD_SUBCMD_ENTER_PS) {
 472                         priv->needtowakeup = 0;
 473                         priv->psstate = PS_STATE_AWAKE;
 474
 475                         lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
 476                         if (priv->connect_status != LBS_CONNECTED) {
 477                                 /*
 478                                  * When Deauth Event received before Enter_PS command
 479                                  * response, We need to wake up the firmware.
 480                                  */
 481                                 lbs_deb_host(
 482                                        "disconnected, invoking lbs_ps_wakeup\n");
 483
 484                                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 485                                 mutex_unlock(&priv->lock);
 486                                 lbs_ps_wakeup(priv, 0);
 487                                 mutex_lock(&priv->lock);
 488                                 spin_lock_irqsave(&priv->driver_lock, flags);
 489                         }
 490                 } else if (action == CMD_SUBCMD_EXIT_PS) {
 491                         priv->needtowakeup = 0;
 492                         priv->psstate = PS_STATE_FULL_POWER;
 493                         lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
 494                 } else {
 495                         lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
 496                 }
 497
 498                 lbs_complete_command(priv, priv->cur_cmd, result);
 499                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 500
 501                 ret = 0;
 502                 goto done;
 503         }
 504
 505         /* If the command is not successful, cleanup and return failure */
 506         if ((result != 0 || !(respcmd & 0x8000))) {
 507                 lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
 508                        result, respcmd);
 509                 /*
 510                  * Handling errors here
 511                  */
 512                 switch (respcmd) {
 513                 case CMD_RET(CMD_GET_HW_SPEC):
 514                 case CMD_RET(CMD_802_11_RESET):
 515                         lbs_deb_host("CMD_RESP: reset failed\n");
 516                         break;
 517
 518                 }
 519                 lbs_complete_command(priv, priv->cur_cmd, result);
 520                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 521
 522                 ret = -1;
 523                 goto done;
 524         }
 525
 526         spin_unlock_irqrestore(&priv->driver_lock, flags);
 527
 528         if (priv->cur_cmd && priv->cur_cmd->callback) {
 529                 ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
 530                                 resp);
 531         } else
 532                 ret = handle_cmd_response(priv, resp);
 533
 534         spin_lock_irqsave(&priv->driver_lock, flags);
 535
 536         if (priv->cur_cmd) {
 537                 /* Clean up and Put current command back to cmdfreeq */
 538                 lbs_complete_command(priv, priv->cur_cmd, result);
 539         }
 540         spin_unlock_irqrestore(&priv->driver_lock, flags);
 541
 542 done:
 543         mutex_unlock(&priv->lock);
 544         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
 545         return ret;
 546 }
 547
 548 static int lbs_send_confirmwake(struct lbs_private *priv)
 549 {
 550         struct cmd_header cmd;
 551         int ret = 0;
 552
 553         lbs_deb_enter(LBS_DEB_HOST);
 554
 555         cmd.command = cpu_to_le16(CMD_802_11_WAKEUP_CONFIRM);
 556         cmd.size = cpu_to_le16(sizeof(cmd));
 557         cmd.seqnum = cpu_to_le16(++priv->seqnum);
 558         cmd.result = 0;
 559
 560         lbs_deb_hex(LBS_DEB_HOST, "wake confirm", (u8 *) &cmd,
 561                 sizeof(cmd));
 562
 563         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &cmd, sizeof(cmd));
 564         if (ret)
 565                 lbs_pr_alert("SEND_WAKEC_CMD: Host to Card failed for Confirm Wake\n");
 566
 567         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
 568         return ret;
 569 }
 570
 571 int lbs_process_event(struct lbs_private *priv, u32 event)
 572 {
 573         int ret = 0;
 574
 575         lbs_deb_enter(LBS_DEB_CMD);
 576
 577         switch (event) {
 578         case MACREG_INT_CODE_LINK_SENSED:
 579                 lbs_deb_cmd("EVENT: link sensed\n");
 580                 break;
 581
 582         case MACREG_INT_CODE_DEAUTHENTICATED:
 583                 lbs_deb_cmd("EVENT: deauthenticated\n");
 584                 lbs_mac_event_disconnected(priv);
 585                 break;
 586
 587         case MACREG_INT_CODE_DISASSOCIATED:
 588                 lbs_deb_cmd("EVENT: disassociated\n");
 589                 lbs_mac_event_disconnected(priv);
 590                 break;
 591
 592         case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
 593                 lbs_deb_cmd("EVENT: link lost\n");
 594                 lbs_mac_event_disconnected(priv);
 595                 break;
 596
 597         case MACREG_INT_CODE_PS_SLEEP:
 598                 lbs_deb_cmd("EVENT: ps sleep\n");
 599
 600                 /* handle unexpected PS SLEEP event */
 601                 if (priv->psstate == PS_STATE_FULL_POWER) {
 602                         lbs_deb_cmd(
 603                                "EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
 604                         break;
 605                 }
 606                 priv->psstate = PS_STATE_PRE_SLEEP;
 607
 608                 lbs_ps_confirm_sleep(priv);
 609
 610                 break;
 611
 612         case MACREG_INT_CODE_HOST_AWAKE:
 613                 lbs_deb_cmd("EVENT: host awake\n");
 614                 lbs_send_confirmwake(priv);
 615                 break;
 616
 617         case MACREG_INT_CODE_PS_AWAKE:
 618                 lbs_deb_cmd("EVENT: ps awake\n");
 619                 /* handle unexpected PS AWAKE event */
 620                 if (priv->psstate == PS_STATE_FULL_POWER) {
 621                         lbs_deb_cmd(
 622                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
 623                         break;
 624                 }
 625
 626                 priv->psstate = PS_STATE_AWAKE;
 627
 628                 if (priv->needtowakeup) {
 629                         /*
 630                          * wait for the command processing to finish
 631                          * before resuming sending
 632                          * priv->needtowakeup will be set to FALSE
 633                          * in lbs_ps_wakeup()
 634                          */
 635                         lbs_deb_cmd("waking up ...\n");
 636                         lbs_ps_wakeup(priv, 0);
 637                 }
 638                 break;
 639
 640         case MACREG_INT_CODE_MIC_ERR_UNICAST:
 641                 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
 642                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
 643                 break;
 644
 645         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
 646                 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
 647                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 648                 break;
 649
 650         case MACREG_INT_CODE_MIB_CHANGED:
 651                 lbs_deb_cmd("EVENT: MIB CHANGED\n");
 652                 break;
 653         case MACREG_INT_CODE_INIT_DONE:
 654                 lbs_deb_cmd("EVENT: INIT DONE\n");
 655                 break;
 656         case MACREG_INT_CODE_ADHOC_BCN_LOST:
 657                 lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
 658                 break;
 659         case MACREG_INT_CODE_RSSI_LOW:
 660                 lbs_pr_alert("EVENT: rssi low\n");
 661                 break;
 662         case MACREG_INT_CODE_SNR_LOW:
 663                 lbs_pr_alert("EVENT: snr low\n");
 664                 break;
 665         case MACREG_INT_CODE_MAX_FAIL:
 666                 lbs_pr_alert("EVENT: max fail\n");
 667                 break;
 668         case MACREG_INT_CODE_RSSI_HIGH:
 669                 lbs_pr_alert("EVENT: rssi high\n");
 670                 break;
 671         case MACREG_INT_CODE_SNR_HIGH:
 672                 lbs_pr_alert("EVENT: snr high\n");
 673                 break;
 674
 675         case MACREG_INT_CODE_MESH_AUTO_STARTED:
 676                 /* Ignore spurious autostart events if autostart is disabled */
 677                 if (!priv->mesh_autostart_enabled) {
 678                         lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
 679                         break;
 680                 }
 681                 lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
 682                 priv->mesh_connect_status = LBS_CONNECTED;
 683                 if (priv->mesh_open) {
 684                         netif_carrier_on(priv->mesh_dev);
 685                         if (!priv->tx_pending_len)
 686                                 netif_wake_queue(priv->mesh_dev);
 687                 }
 688                 priv->mode = IW_MODE_ADHOC;
 689                 schedule_work(&priv->sync_channel);
 690                 break;
 691
 692         default:
 693                 lbs_pr_alert("EVENT: unknown event id %d\n", event);
 694                 break;
 695         }
 696
 697         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 698         return ret;
 699 }