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 "join.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         /* Free Tx and Rx packets */
  47         kfree_skb(priv->currenttxskb);
  48         priv->currenttxskb = NULL;
  49
  50         /* report disconnect to upper layer */
  51         netif_stop_queue(priv->dev);
  52         netif_carrier_off(priv->dev);
  53
  54         /* reset SNR/NF/RSSI values */
  55         memset(priv->SNR, 0x00, sizeof(priv->SNR));
  56         memset(priv->NF, 0x00, sizeof(priv->NF));
  57         memset(priv->RSSI, 0x00, sizeof(priv->RSSI));
  58         memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
  59         memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
  60         priv->nextSNRNF = 0;
  61         priv->numSNRNF = 0;
  62         priv->connect_status = LBS_DISCONNECTED;
  63
  64         /* Clear out associated SSID and BSSID since connection is
  65          * no longer valid.
  66          */
  67         memset(&priv->curbssparams.bssid, 0, ETH_ALEN);
  68         memset(&priv->curbssparams.ssid, 0, IW_ESSID_MAX_SIZE);
  69         priv->curbssparams.ssid_len = 0;
  70
  71         if (priv->psstate != PS_STATE_FULL_POWER) {
  72                 /* make firmware to exit PS mode */
  73                 lbs_deb_cmd("disconnected, so exit PS mode\n");
  74                 lbs_ps_wakeup(priv, 0);
  75         }
  76         lbs_deb_leave(LBS_DEB_CMD);
  77 }
  78
  79 /**
  80  *  @brief This function handles MIC failure event.
  81  *
  82  *  @param priv    A pointer to struct lbs_private structure
  83  *  @para  event   the event id
  84  *  @return        n/a
  85  */
  86 static void handle_mic_failureevent(struct lbs_private *priv, u32 event)
  87 {
  88         char buf[50];
  89
  90         lbs_deb_enter(LBS_DEB_CMD);
  91         memset(buf, 0, sizeof(buf));
  92
  93         sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
  94
  95         if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) {
  96                 strcat(buf, "unicast ");
  97         } else {
  98                 strcat(buf, "multicast ");
  99         }
 100
 101         lbs_send_iwevcustom_event(priv, buf);
 102         lbs_deb_leave(LBS_DEB_CMD);
 103 }
 104
 105 static int lbs_ret_reg_access(struct lbs_private *priv,
 106                                u16 type, struct cmd_ds_command *resp)
 107 {
 108         int ret = 0;
 109
 110         lbs_deb_enter(LBS_DEB_CMD);
 111
 112         switch (type) {
 113         case CMD_RET(CMD_MAC_REG_ACCESS):
 114                 {
 115                         struct cmd_ds_mac_reg_access *reg = &resp->params.macreg;
 116
 117                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 118                         priv->offsetvalue.value = le32_to_cpu(reg->value);
 119                         break;
 120                 }
 121
 122         case CMD_RET(CMD_BBP_REG_ACCESS):
 123                 {
 124                         struct cmd_ds_bbp_reg_access *reg = &resp->params.bbpreg;
 125
 126                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 127                         priv->offsetvalue.value = reg->value;
 128                         break;
 129                 }
 130
 131         case CMD_RET(CMD_RF_REG_ACCESS):
 132                 {
 133                         struct cmd_ds_rf_reg_access *reg = &resp->params.rfreg;
 134
 135                         priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 136                         priv->offsetvalue.value = reg->value;
 137                         break;
 138                 }
 139
 140         default:
 141                 ret = -1;
 142         }
 143
 144         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 145         return ret;
 146 }
 147
 148 static int lbs_ret_802_11_sleep_params(struct lbs_private *priv,
 149                                         struct cmd_ds_command *resp)
 150 {
 151         struct cmd_ds_802_11_sleep_params *sp = &resp->params.sleep_params;
 152
 153         lbs_deb_enter(LBS_DEB_CMD);
 154
 155         lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, calcontrol 0x%x "
 156                     "extsleepclk 0x%x\n", le16_to_cpu(sp->error),
 157                     le16_to_cpu(sp->offset), le16_to_cpu(sp->stabletime),
 158                     sp->calcontrol, sp->externalsleepclk);
 159
 160         priv->sp.sp_error = le16_to_cpu(sp->error);
 161         priv->sp.sp_offset = le16_to_cpu(sp->offset);
 162         priv->sp.sp_stabletime = le16_to_cpu(sp->stabletime);
 163         priv->sp.sp_calcontrol = sp->calcontrol;
 164         priv->sp.sp_extsleepclk = sp->externalsleepclk;
 165         priv->sp.sp_reserved = le16_to_cpu(sp->reserved);
 166
 167         lbs_deb_enter(LBS_DEB_CMD);
 168         return 0;
 169 }
 170
 171 static int lbs_ret_802_11_stat(struct lbs_private *priv,
 172                                 struct cmd_ds_command *resp)
 173 {
 174         lbs_deb_enter(LBS_DEB_CMD);
 175 /*      currently priv->wlan802_11Stat is unused
 176
 177         struct cmd_ds_802_11_get_stat *p11Stat = &resp->params.gstat;
 178
 179         // TODO Convert it to Big endian befor copy
 180         memcpy(&priv->wlan802_11Stat,
 181                p11Stat, sizeof(struct cmd_ds_802_11_get_stat));
 182 */
 183         lbs_deb_leave(LBS_DEB_CMD);
 184         return 0;
 185 }
 186
 187 static int lbs_ret_802_11_snmp_mib(struct lbs_private *priv,
 188                                     struct cmd_ds_command *resp)
 189 {
 190         struct cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
 191         u16 oid = le16_to_cpu(smib->oid);
 192         u16 querytype = le16_to_cpu(smib->querytype);
 193
 194         lbs_deb_enter(LBS_DEB_CMD);
 195
 196         lbs_deb_cmd("SNMP_RESP: oid 0x%x, querytype 0x%x\n", oid,
 197                querytype);
 198         lbs_deb_cmd("SNMP_RESP: Buf size %d\n", le16_to_cpu(smib->bufsize));
 199
 200         if (querytype == CMD_ACT_GET) {
 201                 switch (oid) {
 202                 case FRAGTHRESH_I:
 203                         priv->fragthsd =
 204                                 le16_to_cpu(*((__le16 *)(smib->value)));
 205                         lbs_deb_cmd("SNMP_RESP: frag threshold %u\n",
 206                                     priv->fragthsd);
 207                         break;
 208                 case RTSTHRESH_I:
 209                         priv->rtsthsd =
 210                                 le16_to_cpu(*((__le16 *)(smib->value)));
 211                         lbs_deb_cmd("SNMP_RESP: rts threshold %u\n",
 212                                     priv->rtsthsd);
 213                         break;
 214                 case SHORT_RETRYLIM_I:
 215                         priv->txretrycount =
 216                                 le16_to_cpu(*((__le16 *)(smib->value)));
 217                         lbs_deb_cmd("SNMP_RESP: tx retry count %u\n",
 218                                     priv->rtsthsd);
 219                         break;
 220                 default:
 221                         break;
 222                 }
 223         }
 224
 225         lbs_deb_enter(LBS_DEB_CMD);
 226         return 0;
 227 }
 228
 229 static int lbs_ret_802_11_key_material(struct lbs_private *priv,
 230                                         struct cmd_ds_command *resp)
 231 {
 232         struct cmd_ds_802_11_key_material *pkeymaterial =
 233             &resp->params.keymaterial;
 234         u16 action = le16_to_cpu(pkeymaterial->action);
 235
 236         lbs_deb_enter(LBS_DEB_CMD);
 237
 238         /* Copy the returned key to driver private data */
 239         if (action == CMD_ACT_GET) {
 240                 u8 * buf_ptr = (u8 *) &pkeymaterial->keyParamSet;
 241                 u8 * resp_end = (u8 *) (resp + le16_to_cpu(resp->size));
 242
 243                 while (buf_ptr < resp_end) {
 244                         struct MrvlIEtype_keyParamSet * pkeyparamset =
 245                             (struct MrvlIEtype_keyParamSet *) buf_ptr;
 246                         struct enc_key * pkey;
 247                         u16 param_set_len = le16_to_cpu(pkeyparamset->length);
 248                         u16 key_len = le16_to_cpu(pkeyparamset->keylen);
 249                         u16 key_flags = le16_to_cpu(pkeyparamset->keyinfo);
 250                         u16 key_type = le16_to_cpu(pkeyparamset->keytypeid);
 251                         u8 * end;
 252
 253                         end = (u8 *) pkeyparamset + sizeof (pkeyparamset->type)
 254                                                   + sizeof (pkeyparamset->length)
 255                                                   + param_set_len;
 256                         /* Make sure we don't access past the end of the IEs */
 257                         if (end > resp_end)
 258                                 break;
 259
 260                         if (key_flags & KEY_INFO_WPA_UNICAST)
 261                                 pkey = &priv->wpa_unicast_key;
 262                         else if (key_flags & KEY_INFO_WPA_MCAST)
 263                                 pkey = &priv->wpa_mcast_key;
 264                         else
 265                                 break;
 266
 267                         /* Copy returned key into driver */
 268                         memset(pkey, 0, sizeof(struct enc_key));
 269                         if (key_len > sizeof(pkey->key))
 270                                 break;
 271                         pkey->type = key_type;
 272                         pkey->flags = key_flags;
 273                         pkey->len = key_len;
 274                         memcpy(pkey->key, pkeyparamset->key, pkey->len);
 275
 276                         buf_ptr = end + 1;
 277                 }
 278         }
 279
 280         lbs_deb_enter(LBS_DEB_CMD);
 281         return 0;
 282 }
 283
 284 static int lbs_ret_802_11_mac_address(struct lbs_private *priv,
 285                                        struct cmd_ds_command *resp)
 286 {
 287         struct cmd_ds_802_11_mac_address *macadd = &resp->params.macadd;
 288
 289         lbs_deb_enter(LBS_DEB_CMD);
 290
 291         memcpy(priv->current_addr, macadd->macadd, ETH_ALEN);
 292
 293         lbs_deb_enter(LBS_DEB_CMD);
 294         return 0;
 295 }
 296
 297 static int lbs_ret_802_11_rf_tx_power(struct lbs_private *priv,
 298                                        struct cmd_ds_command *resp)
 299 {
 300         struct cmd_ds_802_11_rf_tx_power *rtp = &resp->params.txp;
 301
 302         lbs_deb_enter(LBS_DEB_CMD);
 303
 304         priv->txpowerlevel = le16_to_cpu(rtp->currentlevel);
 305
 306         lbs_deb_cmd("TX power currently %d\n", priv->txpowerlevel);
 307
 308         lbs_deb_leave(LBS_DEB_CMD);
 309         return 0;
 310 }
 311
 312 static int lbs_ret_802_11_rate_adapt_rateset(struct lbs_private *priv,
 313                                               struct cmd_ds_command *resp)
 314 {
 315         struct cmd_ds_802_11_rate_adapt_rateset *rates = &resp->params.rateset;
 316
 317         lbs_deb_enter(LBS_DEB_CMD);
 318
 319         if (rates->action == CMD_ACT_GET) {
 320                 priv->enablehwauto = le16_to_cpu(rates->enablehwauto);
 321                 priv->ratebitmap = le16_to_cpu(rates->bitmap);
 322         }
 323
 324         lbs_deb_leave(LBS_DEB_CMD);
 325         return 0;
 326 }
 327
 328 static int lbs_ret_802_11_data_rate(struct lbs_private *priv,
 329                                      struct cmd_ds_command *resp)
 330 {
 331         struct cmd_ds_802_11_data_rate *pdatarate = &resp->params.drate;
 332
 333         lbs_deb_enter(LBS_DEB_CMD);
 334
 335         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) pdatarate,
 336                 sizeof(struct cmd_ds_802_11_data_rate));
 337
 338         /* FIXME: get actual rates FW can do if this command actually returns
 339          * all data rates supported.
 340          */
 341         priv->cur_rate = lbs_fw_index_to_data_rate(pdatarate->rates[0]);
 342         lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", priv->cur_rate);
 343
 344         lbs_deb_leave(LBS_DEB_CMD);
 345         return 0;
 346 }
 347
 348 static int lbs_ret_802_11_rf_channel(struct lbs_private *priv,
 349                                       struct cmd_ds_command *resp)
 350 {
 351         struct cmd_ds_802_11_rf_channel *rfchannel = &resp->params.rfchannel;
 352         u16 action = le16_to_cpu(rfchannel->action);
 353         u16 newchannel = le16_to_cpu(rfchannel->currentchannel);
 354
 355         lbs_deb_enter(LBS_DEB_CMD);
 356
 357         if (action == CMD_OPT_802_11_RF_CHANNEL_GET
 358             && priv->curbssparams.channel != newchannel) {
 359                 lbs_deb_cmd("channel switch from %d to %d\n",
 360                        priv->curbssparams.channel, newchannel);
 361
 362                 /* Update the channel again */
 363                 priv->curbssparams.channel = newchannel;
 364         }
 365
 366         lbs_deb_enter(LBS_DEB_CMD);
 367         return 0;
 368 }
 369
 370 static int lbs_ret_802_11_rssi(struct lbs_private *priv,
 371                                 struct cmd_ds_command *resp)
 372 {
 373         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
 374
 375         lbs_deb_enter(LBS_DEB_CMD);
 376
 377         /* store the non average value */
 378         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
 379         priv->NF[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->noisefloor);
 380
 381         priv->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
 382         priv->NF[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgnoisefloor);
 383
 384         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 385             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
 386                      priv->NF[TYPE_BEACON][TYPE_NOAVG]);
 387
 388         priv->RSSI[TYPE_BEACON][TYPE_AVG] =
 389             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
 390                      priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
 391
 392         lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
 393                priv->RSSI[TYPE_BEACON][TYPE_NOAVG],
 394                priv->RSSI[TYPE_BEACON][TYPE_AVG]);
 395
 396         lbs_deb_leave(LBS_DEB_CMD);
 397         return 0;
 398 }
 399
 400 static int lbs_ret_802_11_eeprom_access(struct lbs_private *priv,
 401                                   struct cmd_ds_command *resp)
 402 {
 403         struct lbs_ioctl_regrdwr *pbuf;
 404         pbuf = (struct lbs_ioctl_regrdwr *) priv->prdeeprom;
 405
 406         lbs_deb_enter_args(LBS_DEB_CMD, "len %d",
 407                le16_to_cpu(resp->params.rdeeprom.bytecount));
 408         if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) {
 409                 pbuf->NOB = 0;
 410                 lbs_deb_cmd("EEPROM read length too big\n");
 411                 return -1;
 412         }
 413         pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount);
 414         if (pbuf->NOB > 0) {
 415
 416                 memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value,
 417                        le16_to_cpu(resp->params.rdeeprom.bytecount));
 418                 lbs_deb_hex(LBS_DEB_CMD, "EEPROM", (char *)&pbuf->value,
 419                         le16_to_cpu(resp->params.rdeeprom.bytecount));
 420         }
 421         lbs_deb_leave(LBS_DEB_CMD);
 422         return 0;
 423 }
 424
 425 static int lbs_ret_get_log(struct lbs_private *priv,
 426                             struct cmd_ds_command *resp)
 427 {
 428         struct cmd_ds_802_11_get_log *logmessage = &resp->params.glog;
 429
 430         lbs_deb_enter(LBS_DEB_CMD);
 431
 432         /* Stored little-endian */
 433         memcpy(&priv->logmsg, logmessage, sizeof(struct cmd_ds_802_11_get_log));
 434
 435         lbs_deb_leave(LBS_DEB_CMD);
 436         return 0;
 437 }
 438
 439 static int lbs_ret_802_11_enable_rsn(struct lbs_private *priv,
 440                                           struct cmd_ds_command *resp)
 441 {
 442         struct cmd_ds_802_11_enable_rsn *enable_rsn = &resp->params.enbrsn;
 443         u32 * pdata_buf = priv->cur_cmd->pdata_buf;
 444
 445         lbs_deb_enter(LBS_DEB_CMD);
 446
 447         if (enable_rsn->action == cpu_to_le16(CMD_ACT_GET)) {
 448                 if (pdata_buf)
 449                         *pdata_buf = (u32) le16_to_cpu(enable_rsn->enable);
 450         }
 451
 452         lbs_deb_leave(LBS_DEB_CMD);
 453         return 0;
 454 }
 455
 456 static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv,
 457                                         struct cmd_ds_command *resp)
 458 {
 459         struct cmd_ds_802_11_beacon_control *bcn_ctrl =
 460             &resp->params.bcn_ctrl;
 461
 462         lbs_deb_enter(LBS_DEB_CMD);
 463
 464         if (bcn_ctrl->action == CMD_ACT_GET) {
 465                 priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable);
 466                 priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period);
 467         }
 468
 469         lbs_deb_enter(LBS_DEB_CMD);
 470         return 0;
 471 }
 472
 473 static int lbs_ret_802_11_subscribe_event(struct lbs_private *priv,
 474         struct cmd_ds_command *resp)
 475 {
 476         struct cmd_ds_802_11_subscribe_event *cmd_event =
 477                 &resp->params.subscribe_event;
 478         struct cmd_ds_802_11_subscribe_event *dst_event =
 479                 priv->cur_cmd->pdata_buf;
 480
 481         lbs_deb_enter(LBS_DEB_CMD);
 482
 483         if (dst_event->action == cpu_to_le16(CMD_ACT_GET)) {
 484                 dst_event->events = cmd_event->events;
 485                 memcpy(dst_event->tlv, cmd_event->tlv, sizeof(dst_event->tlv));
 486         }
 487
 488         lbs_deb_leave(LBS_DEB_CMD);
 489         return 0;
 490 }
 491
 492 static inline int handle_cmd_response(struct lbs_private *priv,
 493                                       unsigned long dummy,
 494                                       struct cmd_header *cmd_response)
 495 {
 496         struct cmd_ds_command *resp = (struct cmd_ds_command *) cmd_response;
 497         int ret = 0;
 498         unsigned long flags;
 499         uint16_t respcmd = le16_to_cpu(resp->command);
 500
 501         lbs_deb_enter(LBS_DEB_HOST);
 502
 503         switch (respcmd) {
 504         case CMD_RET(CMD_MAC_REG_ACCESS):
 505         case CMD_RET(CMD_BBP_REG_ACCESS):
 506         case CMD_RET(CMD_RF_REG_ACCESS):
 507                 ret = lbs_ret_reg_access(priv, respcmd, resp);
 508                 break;
 509
 510         case CMD_RET(CMD_802_11_SCAN):
 511                 ret = lbs_ret_80211_scan(priv, resp);
 512                 break;
 513
 514         case CMD_RET(CMD_802_11_GET_LOG):
 515                 ret = lbs_ret_get_log(priv, resp);
 516                 break;
 517
 518         case CMD_RET_802_11_ASSOCIATE:
 519         case CMD_RET(CMD_802_11_ASSOCIATE):
 520         case CMD_RET(CMD_802_11_REASSOCIATE):
 521                 ret = lbs_ret_80211_associate(priv, resp);
 522                 break;
 523
 524         case CMD_RET(CMD_802_11_DISASSOCIATE):
 525         case CMD_RET(CMD_802_11_DEAUTHENTICATE):
 526                 ret = lbs_ret_80211_disassociate(priv, resp);
 527                 break;
 528
 529         case CMD_RET(CMD_802_11_AD_HOC_START):
 530         case CMD_RET(CMD_802_11_AD_HOC_JOIN):
 531                 ret = lbs_ret_80211_ad_hoc_start(priv, resp);
 532                 break;
 533
 534         case CMD_RET(CMD_802_11_GET_STAT):
 535                 ret = lbs_ret_802_11_stat(priv, resp);
 536                 break;
 537
 538         case CMD_RET(CMD_802_11_SNMP_MIB):
 539                 ret = lbs_ret_802_11_snmp_mib(priv, resp);
 540                 break;
 541
 542         case CMD_RET(CMD_802_11_RF_TX_POWER):
 543                 ret = lbs_ret_802_11_rf_tx_power(priv, resp);
 544                 break;
 545
 546         case CMD_RET(CMD_802_11_SET_AFC):
 547         case CMD_RET(CMD_802_11_GET_AFC):
 548                 spin_lock_irqsave(&priv->driver_lock, flags);
 549                 memmove(priv->cur_cmd->pdata_buf, &resp->params.afc,
 550                         sizeof(struct cmd_ds_802_11_afc));
 551                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 552
 553                 break;
 554
 555         case CMD_RET(CMD_MAC_MULTICAST_ADR):
 556         case CMD_RET(CMD_MAC_CONTROL):
 557         case CMD_RET(CMD_802_11_SET_WEP):
 558         case CMD_RET(CMD_802_11_RESET):
 559         case CMD_RET(CMD_802_11_AUTHENTICATE):
 560         case CMD_RET(CMD_802_11_RADIO_CONTROL):
 561         case CMD_RET(CMD_802_11_BEACON_STOP):
 562                 break;
 563
 564         case CMD_RET(CMD_802_11_ENABLE_RSN):
 565                 ret = lbs_ret_802_11_enable_rsn(priv, resp);
 566                 break;
 567
 568         case CMD_RET(CMD_802_11_DATA_RATE):
 569                 ret = lbs_ret_802_11_data_rate(priv, resp);
 570                 break;
 571         case CMD_RET(CMD_802_11_RATE_ADAPT_RATESET):
 572                 ret = lbs_ret_802_11_rate_adapt_rateset(priv, resp);
 573                 break;
 574         case CMD_RET(CMD_802_11_RF_CHANNEL):
 575                 ret = lbs_ret_802_11_rf_channel(priv, resp);
 576                 break;
 577
 578         case CMD_RET(CMD_802_11_RSSI):
 579                 ret = lbs_ret_802_11_rssi(priv, resp);
 580                 break;
 581
 582         case CMD_RET(CMD_802_11_MAC_ADDRESS):
 583                 ret = lbs_ret_802_11_mac_address(priv, resp);
 584                 break;
 585
 586         case CMD_RET(CMD_802_11_AD_HOC_STOP):
 587                 ret = lbs_ret_80211_ad_hoc_stop(priv, resp);
 588                 break;
 589
 590         case CMD_RET(CMD_802_11_KEY_MATERIAL):
 591                 ret = lbs_ret_802_11_key_material(priv, resp);
 592                 break;
 593
 594         case CMD_RET(CMD_802_11_EEPROM_ACCESS):
 595                 ret = lbs_ret_802_11_eeprom_access(priv, resp);
 596                 break;
 597
 598         case CMD_RET(CMD_802_11D_DOMAIN_INFO):
 599                 ret = lbs_ret_802_11d_domain_info(priv, resp);
 600                 break;
 601
 602         case CMD_RET(CMD_802_11_SLEEP_PARAMS):
 603                 ret = lbs_ret_802_11_sleep_params(priv, resp);
 604                 break;
 605         case CMD_RET(CMD_802_11_INACTIVITY_TIMEOUT):
 606                 spin_lock_irqsave(&priv->driver_lock, flags);
 607                 *((u16 *) priv->cur_cmd->pdata_buf) =
 608                     le16_to_cpu(resp->params.inactivity_timeout.timeout);
 609                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 610                 break;
 611
 612         case CMD_RET(CMD_802_11_TPC_CFG):
 613                 spin_lock_irqsave(&priv->driver_lock, flags);
 614                 memmove(priv->cur_cmd->pdata_buf, &resp->params.tpccfg,
 615                         sizeof(struct cmd_ds_802_11_tpc_cfg));
 616                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 617                 break;
 618         case CMD_RET(CMD_802_11_LED_GPIO_CTRL):
 619                 spin_lock_irqsave(&priv->driver_lock, flags);
 620                 memmove(priv->cur_cmd->pdata_buf, &resp->params.ledgpio,
 621                         sizeof(struct cmd_ds_802_11_led_ctrl));
 622                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 623                 break;
 624         case CMD_RET(CMD_802_11_SUBSCRIBE_EVENT):
 625                 ret = lbs_ret_802_11_subscribe_event(priv, resp);
 626                 break;
 627
 628         case CMD_RET(CMD_802_11_PWR_CFG):
 629                 spin_lock_irqsave(&priv->driver_lock, flags);
 630                 memmove(priv->cur_cmd->pdata_buf, &resp->params.pwrcfg,
 631                         sizeof(struct cmd_ds_802_11_pwr_cfg));
 632                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 633
 634                 break;
 635
 636         case CMD_RET(CMD_GET_TSF):
 637                 spin_lock_irqsave(&priv->driver_lock, flags);
 638                 memcpy(priv->cur_cmd->pdata_buf,
 639                        &resp->params.gettsf.tsfvalue, sizeof(u64));
 640                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 641                 break;
 642         case CMD_RET(CMD_BT_ACCESS):
 643                 spin_lock_irqsave(&priv->driver_lock, flags);
 644                 if (priv->cur_cmd->pdata_buf)
 645                         memcpy(priv->cur_cmd->pdata_buf,
 646                                &resp->params.bt.addr1, 2 * ETH_ALEN);
 647                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 648                 break;
 649         case CMD_RET(CMD_FWT_ACCESS):
 650                 spin_lock_irqsave(&priv->driver_lock, flags);
 651                 if (priv->cur_cmd->pdata_buf)
 652                         memcpy(priv->cur_cmd->pdata_buf, &resp->params.fwt,
 653                                sizeof(resp->params.fwt));
 654                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 655                 break;
 656         case CMD_RET(CMD_802_11_BEACON_CTRL):
 657                 ret = lbs_ret_802_11_bcn_ctrl(priv, resp);
 658                 break;
 659
 660         default:
 661                 lbs_deb_host("CMD_RESP: unknown cmd response 0x%04x\n",
 662                             resp->command);
 663                 break;
 664         }
 665         lbs_deb_leave(LBS_DEB_HOST);
 666         return ret;
 667 }
 668
 669 int lbs_process_rx_command(struct lbs_private *priv)
 670 {
 671         u16 respcmd;
 672         struct cmd_header *resp;
 673         int ret = 0;
 674         ulong flags;
 675         u16 result;
 676
 677         lbs_deb_enter(LBS_DEB_HOST);
 678
 679         /* Now we got response from FW, cancel the command timer */
 680         del_timer(&priv->command_timer);
 681
 682         mutex_lock(&priv->lock);
 683         spin_lock_irqsave(&priv->driver_lock, flags);
 684
 685         if (!priv->cur_cmd) {
 686                 lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
 687                 ret = -1;
 688                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 689                 goto done;
 690         }
 691         resp = priv->cur_cmd->cmdbuf;
 692
 693         respcmd = le16_to_cpu(resp->command);
 694         result = le16_to_cpu(resp->result);
 695
 696         lbs_deb_host("CMD_RESP: response 0x%04x, size %d, jiffies %lu\n",
 697                 respcmd, priv->upld_len, jiffies);
 698         lbs_deb_hex(LBS_DEB_HOST, "CMD_RESP", (void *) resp, priv->upld_len);
 699
 700         if (!(respcmd & 0x8000)) {
 701                 lbs_deb_host("invalid response!\n");
 702                 priv->cur_cmd_retcode = -1;
 703                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
 704                 priv->cur_cmd = NULL;
 705                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 706                 ret = -1;
 707                 goto done;
 708         }
 709
 710         /* Store the response code to cur_cmd_retcode. */
 711         priv->cur_cmd_retcode = result;
 712
 713         if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
 714                 struct cmd_ds_802_11_ps_mode *psmode = (void *) resp;
 715                 u16 action = le16_to_cpu(psmode->action);
 716
 717                 lbs_deb_host(
 718                        "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
 719                        result, action);
 720
 721                 if (result) {
 722                         lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
 723                                     result);
 724                         /*
 725                          * We should not re-try enter-ps command in
 726                          * ad-hoc mode. It takes place in
 727                          * lbs_execute_next_command().
 728                          */
 729                         if (priv->mode == IW_MODE_ADHOC &&
 730                             action == CMD_SUBCMD_ENTER_PS)
 731                                 priv->psmode = LBS802_11POWERMODECAM;
 732                 } else if (action == CMD_SUBCMD_ENTER_PS) {
 733                         priv->needtowakeup = 0;
 734                         priv->psstate = PS_STATE_AWAKE;
 735
 736                         lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
 737                         if (priv->connect_status != LBS_CONNECTED) {
 738                                 /*
 739                                  * When Deauth Event received before Enter_PS command
 740                                  * response, We need to wake up the firmware.
 741                                  */
 742                                 lbs_deb_host(
 743                                        "disconnected, invoking lbs_ps_wakeup\n");
 744
 745                                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 746                                 mutex_unlock(&priv->lock);
 747                                 lbs_ps_wakeup(priv, 0);
 748                                 mutex_lock(&priv->lock);
 749                                 spin_lock_irqsave(&priv->driver_lock, flags);
 750                         }
 751                 } else if (action == CMD_SUBCMD_EXIT_PS) {
 752                         priv->needtowakeup = 0;
 753                         priv->psstate = PS_STATE_FULL_POWER;
 754                         lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
 755                 } else {
 756                         lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
 757                 }
 758
 759                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
 760                 priv->cur_cmd = NULL;
 761                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 762
 763                 ret = 0;
 764                 goto done;
 765         }
 766
 767         /* If the command is not successful, cleanup and return failure */
 768         if ((result != 0 || !(respcmd & 0x8000))) {
 769                 lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
 770                        result, respcmd);
 771                 /*
 772                  * Handling errors here
 773                  */
 774                 switch (respcmd) {
 775                 case CMD_RET(CMD_GET_HW_SPEC):
 776                 case CMD_RET(CMD_802_11_RESET):
 777                         lbs_deb_host("CMD_RESP: reset failed\n");
 778                         break;
 779
 780                 }
 781
 782                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
 783                 priv->cur_cmd = NULL;
 784                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 785
 786                 ret = -1;
 787                 goto done;
 788         }
 789
 790         spin_unlock_irqrestore(&priv->driver_lock, flags);
 791
 792         if (priv->cur_cmd && priv->cur_cmd->callback) {
 793                 ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
 794                                 resp);
 795         } else
 796                 ret = handle_cmd_response(priv, 0, resp);
 797
 798         spin_lock_irqsave(&priv->driver_lock, flags);
 799
 800         if (priv->cur_cmd) {
 801                 /* Clean up and Put current command back to cmdfreeq */
 802                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
 803                 priv->cur_cmd = NULL;
 804         }
 805         spin_unlock_irqrestore(&priv->driver_lock, flags);
 806
 807 done:
 808         mutex_unlock(&priv->lock);
 809         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
 810         return ret;
 811 }
 812
 813 int lbs_process_event(struct lbs_private *priv)
 814 {
 815         int ret = 0;
 816         u32 eventcause;
 817
 818         lbs_deb_enter(LBS_DEB_CMD);
 819
 820         spin_lock_irq(&priv->driver_lock);
 821         eventcause = priv->eventcause >> SBI_EVENT_CAUSE_SHIFT;
 822         spin_unlock_irq(&priv->driver_lock);
 823
 824         lbs_deb_cmd("event cause %d\n", eventcause);
 825
 826         switch (eventcause) {
 827         case MACREG_INT_CODE_LINK_SENSED:
 828                 lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n");
 829                 break;
 830
 831         case MACREG_INT_CODE_DEAUTHENTICATED:
 832                 lbs_deb_cmd("EVENT: deauthenticated\n");
 833                 lbs_mac_event_disconnected(priv);
 834                 break;
 835
 836         case MACREG_INT_CODE_DISASSOCIATED:
 837                 lbs_deb_cmd("EVENT: disassociated\n");
 838                 lbs_mac_event_disconnected(priv);
 839                 break;
 840
 841         case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
 842                 lbs_deb_cmd("EVENT: link lost\n");
 843                 lbs_mac_event_disconnected(priv);
 844                 break;
 845
 846         case MACREG_INT_CODE_PS_SLEEP:
 847                 lbs_deb_cmd("EVENT: sleep\n");
 848
 849                 /* handle unexpected PS SLEEP event */
 850                 if (priv->psstate == PS_STATE_FULL_POWER) {
 851                         lbs_deb_cmd(
 852                                "EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
 853                         break;
 854                 }
 855                 priv->psstate = PS_STATE_PRE_SLEEP;
 856
 857                 lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
 858
 859                 break;
 860
 861         case MACREG_INT_CODE_PS_AWAKE:
 862                 lbs_deb_cmd("EVENT: awake\n");
 863
 864                 /* handle unexpected PS AWAKE event */
 865                 if (priv->psstate == PS_STATE_FULL_POWER) {
 866                         lbs_deb_cmd(
 867                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
 868                         break;
 869                 }
 870
 871                 priv->psstate = PS_STATE_AWAKE;
 872
 873                 if (priv->needtowakeup) {
 874                         /*
 875                          * wait for the command processing to finish
 876                          * before resuming sending
 877                          * priv->needtowakeup will be set to FALSE
 878                          * in lbs_ps_wakeup()
 879                          */
 880                         lbs_deb_cmd("waking up ...\n");
 881                         lbs_ps_wakeup(priv, 0);
 882                 }
 883                 break;
 884
 885         case MACREG_INT_CODE_MIC_ERR_UNICAST:
 886                 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
 887                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
 888                 break;
 889
 890         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
 891                 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
 892                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 893                 break;
 894         case MACREG_INT_CODE_MIB_CHANGED:
 895         case MACREG_INT_CODE_INIT_DONE:
 896                 break;
 897
 898         case MACREG_INT_CODE_ADHOC_BCN_LOST:
 899                 lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
 900                 break;
 901
 902         case MACREG_INT_CODE_RSSI_LOW:
 903                 lbs_pr_alert("EVENT: rssi low\n");
 904                 break;
 905         case MACREG_INT_CODE_SNR_LOW:
 906                 lbs_pr_alert("EVENT: snr low\n");
 907                 break;
 908         case MACREG_INT_CODE_MAX_FAIL:
 909                 lbs_pr_alert("EVENT: max fail\n");
 910                 break;
 911         case MACREG_INT_CODE_RSSI_HIGH:
 912                 lbs_pr_alert("EVENT: rssi high\n");
 913                 break;
 914         case MACREG_INT_CODE_SNR_HIGH:
 915                 lbs_pr_alert("EVENT: snr high\n");
 916                 break;
 917
 918         case MACREG_INT_CODE_MESH_AUTO_STARTED:
 919                 /* Ignore spurious autostart events if autostart is disabled */
 920                 if (!priv->mesh_autostart_enabled) {
 921                         lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
 922                         break;
 923                 }
 924                 lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
 925                 priv->mesh_connect_status = LBS_CONNECTED;
 926                 if (priv->mesh_open == 1) {
 927                         netif_wake_queue(priv->mesh_dev);
 928                         netif_carrier_on(priv->mesh_dev);
 929                 }
 930                 priv->mode = IW_MODE_ADHOC;
 931                 schedule_work(&priv->sync_channel);
 932                 break;
 933
 934         default:
 935                 lbs_pr_alert("EVENT: unknown event id %d\n", eventcause);
 936                 break;
 937         }
 938
 939         spin_lock_irq(&priv->driver_lock);
 940         priv->eventcause = 0;
 941         spin_unlock_irq(&priv->driver_lock);
 942
 943         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 944         return ret;
 945 }