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 "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  65          * no longer valid.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_rssi(struct lbs_private *priv,
 329                                 struct cmd_ds_command *resp)
 330 {
 331         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
 332
 333         lbs_deb_enter(LBS_DEB_CMD);
 334
 335         /* store the non average value */
 336         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
 337         priv->NF[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->noisefloor);
 338
 339         priv->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
 340         priv->NF[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgnoisefloor);
 341
 342         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 343             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
 344                      priv->NF[TYPE_BEACON][TYPE_NOAVG]);
 345
 346         priv->RSSI[TYPE_BEACON][TYPE_AVG] =
 347             CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
 348                      priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
 349
 350         lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
 351                priv->RSSI[TYPE_BEACON][TYPE_NOAVG],
 352                priv->RSSI[TYPE_BEACON][TYPE_AVG]);
 353
 354         lbs_deb_leave(LBS_DEB_CMD);
 355         return 0;
 356 }
 357
 358 static int lbs_ret_802_11_eeprom_access(struct lbs_private *priv,
 359                                   struct cmd_ds_command *resp)
 360 {
 361         struct lbs_ioctl_regrdwr *pbuf;
 362         pbuf = (struct lbs_ioctl_regrdwr *) priv->prdeeprom;
 363
 364         lbs_deb_enter_args(LBS_DEB_CMD, "len %d",
 365                le16_to_cpu(resp->params.rdeeprom.bytecount));
 366         if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) {
 367                 pbuf->NOB = 0;
 368                 lbs_deb_cmd("EEPROM read length too big\n");
 369                 return -1;
 370         }
 371         pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount);
 372         if (pbuf->NOB > 0) {
 373
 374                 memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value,
 375                        le16_to_cpu(resp->params.rdeeprom.bytecount));
 376                 lbs_deb_hex(LBS_DEB_CMD, "EEPROM", (char *)&pbuf->value,
 377                         le16_to_cpu(resp->params.rdeeprom.bytecount));
 378         }
 379         lbs_deb_leave(LBS_DEB_CMD);
 380         return 0;
 381 }
 382
 383 static int lbs_ret_get_log(struct lbs_private *priv,
 384                             struct cmd_ds_command *resp)
 385 {
 386         struct cmd_ds_802_11_get_log *logmessage = &resp->params.glog;
 387
 388         lbs_deb_enter(LBS_DEB_CMD);
 389
 390         /* Stored little-endian */
 391         memcpy(&priv->logmsg, logmessage, sizeof(struct cmd_ds_802_11_get_log));
 392
 393         lbs_deb_leave(LBS_DEB_CMD);
 394         return 0;
 395 }
 396
 397 static int lbs_ret_802_11_enable_rsn(struct lbs_private *priv,
 398                                           struct cmd_ds_command *resp)
 399 {
 400         struct cmd_ds_802_11_enable_rsn *enable_rsn = &resp->params.enbrsn;
 401         u32 * pdata_buf = priv->cur_cmd->pdata_buf;
 402
 403         lbs_deb_enter(LBS_DEB_CMD);
 404
 405         if (enable_rsn->action == cpu_to_le16(CMD_ACT_GET)) {
 406                 if (pdata_buf)
 407                         *pdata_buf = (u32) le16_to_cpu(enable_rsn->enable);
 408         }
 409
 410         lbs_deb_leave(LBS_DEB_CMD);
 411         return 0;
 412 }
 413
 414 static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv,
 415                                         struct cmd_ds_command *resp)
 416 {
 417         struct cmd_ds_802_11_beacon_control *bcn_ctrl =
 418             &resp->params.bcn_ctrl;
 419
 420         lbs_deb_enter(LBS_DEB_CMD);
 421
 422         if (bcn_ctrl->action == CMD_ACT_GET) {
 423                 priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable);
 424                 priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period);
 425         }
 426
 427         lbs_deb_enter(LBS_DEB_CMD);
 428         return 0;
 429 }
 430
 431 static int lbs_ret_802_11_subscribe_event(struct lbs_private *priv,
 432         struct cmd_ds_command *resp)
 433 {
 434         struct cmd_ds_802_11_subscribe_event *cmd_event =
 435                 &resp->params.subscribe_event;
 436         struct cmd_ds_802_11_subscribe_event *dst_event =
 437                 priv->cur_cmd->pdata_buf;
 438
 439         lbs_deb_enter(LBS_DEB_CMD);
 440
 441         if (dst_event->action == cpu_to_le16(CMD_ACT_GET)) {
 442                 dst_event->events = cmd_event->events;
 443                 memcpy(dst_event->tlv, cmd_event->tlv, sizeof(dst_event->tlv));
 444         }
 445
 446         lbs_deb_leave(LBS_DEB_CMD);
 447         return 0;
 448 }
 449
 450 static inline int handle_cmd_response(struct lbs_private *priv,
 451                                       unsigned long dummy,
 452                                       struct cmd_header *cmd_response)
 453 {
 454         struct cmd_ds_command *resp = (struct cmd_ds_command *) cmd_response;
 455         int ret = 0;
 456         unsigned long flags;
 457         uint16_t respcmd = le16_to_cpu(resp->command);
 458
 459         lbs_deb_enter(LBS_DEB_HOST);
 460
 461         switch (respcmd) {
 462         case CMD_RET(CMD_MAC_REG_ACCESS):
 463         case CMD_RET(CMD_BBP_REG_ACCESS):
 464         case CMD_RET(CMD_RF_REG_ACCESS):
 465                 ret = lbs_ret_reg_access(priv, respcmd, resp);
 466                 break;
 467
 468         case CMD_RET(CMD_802_11_SCAN):
 469                 ret = lbs_ret_80211_scan(priv, resp);
 470                 break;
 471
 472         case CMD_RET(CMD_802_11_GET_LOG):
 473                 ret = lbs_ret_get_log(priv, resp);
 474                 break;
 475
 476         case CMD_RET_802_11_ASSOCIATE:
 477         case CMD_RET(CMD_802_11_ASSOCIATE):
 478         case CMD_RET(CMD_802_11_REASSOCIATE):
 479                 ret = lbs_ret_80211_associate(priv, resp);
 480                 break;
 481
 482         case CMD_RET(CMD_802_11_DISASSOCIATE):
 483         case CMD_RET(CMD_802_11_DEAUTHENTICATE):
 484                 ret = lbs_ret_80211_disassociate(priv, resp);
 485                 break;
 486
 487         case CMD_RET(CMD_802_11_AD_HOC_START):
 488         case CMD_RET(CMD_802_11_AD_HOC_JOIN):
 489                 ret = lbs_ret_80211_ad_hoc_start(priv, resp);
 490                 break;
 491
 492         case CMD_RET(CMD_802_11_GET_STAT):
 493                 ret = lbs_ret_802_11_stat(priv, resp);
 494                 break;
 495
 496         case CMD_RET(CMD_802_11_SNMP_MIB):
 497                 ret = lbs_ret_802_11_snmp_mib(priv, resp);
 498                 break;
 499
 500         case CMD_RET(CMD_802_11_RF_TX_POWER):
 501                 ret = lbs_ret_802_11_rf_tx_power(priv, resp);
 502                 break;
 503
 504         case CMD_RET(CMD_802_11_SET_AFC):
 505         case CMD_RET(CMD_802_11_GET_AFC):
 506                 spin_lock_irqsave(&priv->driver_lock, flags);
 507                 memmove(priv->cur_cmd->pdata_buf, &resp->params.afc,
 508                         sizeof(struct cmd_ds_802_11_afc));
 509                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 510
 511                 break;
 512
 513         case CMD_RET(CMD_MAC_MULTICAST_ADR):
 514         case CMD_RET(CMD_MAC_CONTROL):
 515         case CMD_RET(CMD_802_11_SET_WEP):
 516         case CMD_RET(CMD_802_11_RESET):
 517         case CMD_RET(CMD_802_11_AUTHENTICATE):
 518         case CMD_RET(CMD_802_11_RADIO_CONTROL):
 519         case CMD_RET(CMD_802_11_BEACON_STOP):
 520                 break;
 521
 522         case CMD_RET(CMD_802_11_ENABLE_RSN):
 523                 ret = lbs_ret_802_11_enable_rsn(priv, resp);
 524                 break;
 525
 526         case CMD_RET(CMD_802_11_RATE_ADAPT_RATESET):
 527                 ret = lbs_ret_802_11_rate_adapt_rateset(priv, resp);
 528                 break;
 529
 530         case CMD_RET(CMD_802_11_RSSI):
 531                 ret = lbs_ret_802_11_rssi(priv, resp);
 532                 break;
 533
 534         case CMD_RET(CMD_802_11_MAC_ADDRESS):
 535                 ret = lbs_ret_802_11_mac_address(priv, resp);
 536                 break;
 537
 538         case CMD_RET(CMD_802_11_AD_HOC_STOP):
 539                 ret = lbs_ret_80211_ad_hoc_stop(priv, resp);
 540                 break;
 541
 542         case CMD_RET(CMD_802_11_KEY_MATERIAL):
 543                 ret = lbs_ret_802_11_key_material(priv, resp);
 544                 break;
 545
 546         case CMD_RET(CMD_802_11_EEPROM_ACCESS):
 547                 ret = lbs_ret_802_11_eeprom_access(priv, resp);
 548                 break;
 549
 550         case CMD_RET(CMD_802_11D_DOMAIN_INFO):
 551                 ret = lbs_ret_802_11d_domain_info(priv, resp);
 552                 break;
 553
 554         case CMD_RET(CMD_802_11_SLEEP_PARAMS):
 555                 ret = lbs_ret_802_11_sleep_params(priv, resp);
 556                 break;
 557         case CMD_RET(CMD_802_11_INACTIVITY_TIMEOUT):
 558                 spin_lock_irqsave(&priv->driver_lock, flags);
 559                 *((u16 *) priv->cur_cmd->pdata_buf) =
 560                     le16_to_cpu(resp->params.inactivity_timeout.timeout);
 561                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 562                 break;
 563
 564         case CMD_RET(CMD_802_11_TPC_CFG):
 565                 spin_lock_irqsave(&priv->driver_lock, flags);
 566                 memmove(priv->cur_cmd->pdata_buf, &resp->params.tpccfg,
 567                         sizeof(struct cmd_ds_802_11_tpc_cfg));
 568                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 569                 break;
 570         case CMD_RET(CMD_802_11_LED_GPIO_CTRL):
 571                 spin_lock_irqsave(&priv->driver_lock, flags);
 572                 memmove(priv->cur_cmd->pdata_buf, &resp->params.ledgpio,
 573                         sizeof(struct cmd_ds_802_11_led_ctrl));
 574                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 575                 break;
 576         case CMD_RET(CMD_802_11_SUBSCRIBE_EVENT):
 577                 ret = lbs_ret_802_11_subscribe_event(priv, resp);
 578                 break;
 579
 580         case CMD_RET(CMD_802_11_PWR_CFG):
 581                 spin_lock_irqsave(&priv->driver_lock, flags);
 582                 memmove(priv->cur_cmd->pdata_buf, &resp->params.pwrcfg,
 583                         sizeof(struct cmd_ds_802_11_pwr_cfg));
 584                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 585
 586                 break;
 587
 588         case CMD_RET(CMD_GET_TSF):
 589                 spin_lock_irqsave(&priv->driver_lock, flags);
 590                 memcpy(priv->cur_cmd->pdata_buf,
 591                        &resp->params.gettsf.tsfvalue, sizeof(u64));
 592                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 593                 break;
 594         case CMD_RET(CMD_BT_ACCESS):
 595                 spin_lock_irqsave(&priv->driver_lock, flags);
 596                 if (priv->cur_cmd->pdata_buf)
 597                         memcpy(priv->cur_cmd->pdata_buf,
 598                                &resp->params.bt.addr1, 2 * ETH_ALEN);
 599                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 600                 break;
 601         case CMD_RET(CMD_FWT_ACCESS):
 602                 spin_lock_irqsave(&priv->driver_lock, flags);
 603                 if (priv->cur_cmd->pdata_buf)
 604                         memcpy(priv->cur_cmd->pdata_buf, &resp->params.fwt,
 605                                sizeof(resp->params.fwt));
 606                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 607                 break;
 608         case CMD_RET(CMD_802_11_BEACON_CTRL):
 609                 ret = lbs_ret_802_11_bcn_ctrl(priv, resp);
 610                 break;
 611
 612         default:
 613                 lbs_deb_host("CMD_RESP: unknown cmd response 0x%04x\n",
 614                             resp->command);
 615                 break;
 616         }
 617         lbs_deb_leave(LBS_DEB_HOST);
 618         return ret;
 619 }
 620
 621 int lbs_process_rx_command(struct lbs_private *priv)
 622 {
 623         u16 respcmd;
 624         struct cmd_header *resp;
 625         int ret = 0;
 626         ulong flags;
 627         u16 result;
 628
 629         lbs_deb_enter(LBS_DEB_HOST);
 630
 631         /* Now we got response from FW, cancel the command timer */
 632         del_timer(&priv->command_timer);
 633
 634         mutex_lock(&priv->lock);
 635         spin_lock_irqsave(&priv->driver_lock, flags);
 636
 637         if (!priv->cur_cmd) {
 638                 lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
 639                 ret = -1;
 640                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 641                 goto done;
 642         }
 643         resp = priv->cur_cmd->cmdbuf;
 644
 645         respcmd = le16_to_cpu(resp->command);
 646         result = le16_to_cpu(resp->result);
 647
 648         lbs_deb_host("CMD_RESP: response 0x%04x, size %d, jiffies %lu\n",
 649                 respcmd, priv->upld_len, jiffies);
 650         lbs_deb_hex(LBS_DEB_HOST, "CMD_RESP", (void *) resp, priv->upld_len);
 651
 652         if (!(respcmd & 0x8000)) {
 653                 lbs_deb_host("invalid response!\n");
 654                 priv->cur_cmd_retcode = -1;
 655                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
 656                 priv->cur_cmd = NULL;
 657                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 658                 ret = -1;
 659                 goto done;
 660         }
 661
 662         /* Store the response code to cur_cmd_retcode. */
 663         priv->cur_cmd_retcode = result;
 664
 665         if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
 666                 struct cmd_ds_802_11_ps_mode *psmode = (void *) resp;
 667                 u16 action = le16_to_cpu(psmode->action);
 668
 669                 lbs_deb_host(
 670                        "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
 671                        result, action);
 672
 673                 if (result) {
 674                         lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
 675                                     result);
 676                         /*
 677                          * We should not re-try enter-ps command in
 678                          * ad-hoc mode. It takes place in
 679                          * lbs_execute_next_command().
 680                          */
 681                         if (priv->mode == IW_MODE_ADHOC &&
 682                             action == CMD_SUBCMD_ENTER_PS)
 683                                 priv->psmode = LBS802_11POWERMODECAM;
 684                 } else if (action == CMD_SUBCMD_ENTER_PS) {
 685                         priv->needtowakeup = 0;
 686                         priv->psstate = PS_STATE_AWAKE;
 687
 688                         lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
 689                         if (priv->connect_status != LBS_CONNECTED) {
 690                                 /*
 691                                  * When Deauth Event received before Enter_PS command
 692                                  * response, We need to wake up the firmware.
 693                                  */
 694                                 lbs_deb_host(
 695                                        "disconnected, invoking lbs_ps_wakeup\n");
 696
 697                                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 698                                 mutex_unlock(&priv->lock);
 699                                 lbs_ps_wakeup(priv, 0);
 700                                 mutex_lock(&priv->lock);
 701                                 spin_lock_irqsave(&priv->driver_lock, flags);
 702                         }
 703                 } else if (action == CMD_SUBCMD_EXIT_PS) {
 704                         priv->needtowakeup = 0;
 705                         priv->psstate = PS_STATE_FULL_POWER;
 706                         lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
 707                 } else {
 708                         lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
 709                 }
 710
 711                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
 712                 priv->cur_cmd = NULL;
 713                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 714
 715                 ret = 0;
 716                 goto done;
 717         }
 718
 719         /* If the command is not successful, cleanup and return failure */
 720         if ((result != 0 || !(respcmd & 0x8000))) {
 721                 lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
 722                        result, respcmd);
 723                 /*
 724                  * Handling errors here
 725                  */
 726                 switch (respcmd) {
 727                 case CMD_RET(CMD_GET_HW_SPEC):
 728                 case CMD_RET(CMD_802_11_RESET):
 729                         lbs_deb_host("CMD_RESP: reset failed\n");
 730                         break;
 731
 732                 }
 733
 734                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
 735                 priv->cur_cmd = NULL;
 736                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 737
 738                 ret = -1;
 739                 goto done;
 740         }
 741
 742         spin_unlock_irqrestore(&priv->driver_lock, flags);
 743
 744         if (priv->cur_cmd && priv->cur_cmd->callback) {
 745                 ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
 746                                 resp);
 747         } else
 748                 ret = handle_cmd_response(priv, 0, resp);
 749
 750         spin_lock_irqsave(&priv->driver_lock, flags);
 751
 752         if (priv->cur_cmd) {
 753                 /* Clean up and Put current command back to cmdfreeq */
 754                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
 755                 priv->cur_cmd = NULL;
 756         }
 757         spin_unlock_irqrestore(&priv->driver_lock, flags);
 758
 759 done:
 760         mutex_unlock(&priv->lock);
 761         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
 762         return ret;
 763 }
 764
 765 int lbs_process_event(struct lbs_private *priv)
 766 {
 767         int ret = 0;
 768         u32 eventcause;
 769
 770         lbs_deb_enter(LBS_DEB_CMD);
 771
 772         spin_lock_irq(&priv->driver_lock);
 773         eventcause = priv->eventcause >> SBI_EVENT_CAUSE_SHIFT;
 774         spin_unlock_irq(&priv->driver_lock);
 775
 776         lbs_deb_cmd("event cause %d\n", eventcause);
 777
 778         switch (eventcause) {
 779         case MACREG_INT_CODE_LINK_SENSED:
 780                 lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n");
 781                 break;
 782
 783         case MACREG_INT_CODE_DEAUTHENTICATED:
 784                 lbs_deb_cmd("EVENT: deauthenticated\n");
 785                 lbs_mac_event_disconnected(priv);
 786                 break;
 787
 788         case MACREG_INT_CODE_DISASSOCIATED:
 789                 lbs_deb_cmd("EVENT: disassociated\n");
 790                 lbs_mac_event_disconnected(priv);
 791                 break;
 792
 793         case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
 794                 lbs_deb_cmd("EVENT: link lost\n");
 795                 lbs_mac_event_disconnected(priv);
 796                 break;
 797
 798         case MACREG_INT_CODE_PS_SLEEP:
 799                 lbs_deb_cmd("EVENT: sleep\n");
 800
 801                 /* handle unexpected PS SLEEP event */
 802                 if (priv->psstate == PS_STATE_FULL_POWER) {
 803                         lbs_deb_cmd(
 804                                "EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
 805                         break;
 806                 }
 807                 priv->psstate = PS_STATE_PRE_SLEEP;
 808
 809                 lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
 810
 811                 break;
 812
 813         case MACREG_INT_CODE_PS_AWAKE:
 814                 lbs_deb_cmd("EVENT: awake\n");
 815
 816                 /* handle unexpected PS AWAKE event */
 817                 if (priv->psstate == PS_STATE_FULL_POWER) {
 818                         lbs_deb_cmd(
 819                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
 820                         break;
 821                 }
 822
 823                 priv->psstate = PS_STATE_AWAKE;
 824
 825                 if (priv->needtowakeup) {
 826                         /*
 827                          * wait for the command processing to finish
 828                          * before resuming sending
 829                          * priv->needtowakeup will be set to FALSE
 830                          * in lbs_ps_wakeup()
 831                          */
 832                         lbs_deb_cmd("waking up ...\n");
 833                         lbs_ps_wakeup(priv, 0);
 834                 }
 835                 break;
 836
 837         case MACREG_INT_CODE_MIC_ERR_UNICAST:
 838                 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
 839                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
 840                 break;
 841
 842         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
 843                 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
 844                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 845                 break;
 846         case MACREG_INT_CODE_MIB_CHANGED:
 847         case MACREG_INT_CODE_INIT_DONE:
 848                 break;
 849
 850         case MACREG_INT_CODE_ADHOC_BCN_LOST:
 851                 lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
 852                 break;
 853
 854         case MACREG_INT_CODE_RSSI_LOW:
 855                 lbs_pr_alert("EVENT: rssi low\n");
 856                 break;
 857         case MACREG_INT_CODE_SNR_LOW:
 858                 lbs_pr_alert("EVENT: snr low\n");
 859                 break;
 860         case MACREG_INT_CODE_MAX_FAIL:
 861                 lbs_pr_alert("EVENT: max fail\n");
 862                 break;
 863         case MACREG_INT_CODE_RSSI_HIGH:
 864                 lbs_pr_alert("EVENT: rssi high\n");
 865                 break;
 866         case MACREG_INT_CODE_SNR_HIGH:
 867                 lbs_pr_alert("EVENT: snr high\n");
 868                 break;
 869
 870         case MACREG_INT_CODE_MESH_AUTO_STARTED:
 871                 /* Ignore spurious autostart events if autostart is disabled */
 872                 if (!priv->mesh_autostart_enabled) {
 873                         lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
 874                         break;
 875                 }
 876                 lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
 877                 priv->mesh_connect_status = LBS_CONNECTED;
 878                 if (priv->mesh_open == 1) {
 879                         netif_wake_queue(priv->mesh_dev);
 880                         netif_carrier_on(priv->mesh_dev);
 881                 }
 882                 priv->mode = IW_MODE_ADHOC;
 883                 schedule_work(&priv->sync_channel);
 884                 break;
 885
 886         default:
 887                 lbs_pr_alert("EVENT: unknown event id %d\n", eventcause);
 888                 break;
 889         }
 890
 891         spin_lock_irq(&priv->driver_lock);
 892         priv->eventcause = 0;
 893         spin_unlock_irq(&priv->driver_lock);
 894
 895         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 896         return ret;
 897 }