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 "sbi.h"
  13 #include "decl.h"
  14 #include "defs.h"
  15 #include "dev.h"
  16 #include "join.h"
  17 #include "wext.h"
  18
  19 /**
  20  *  @brief This function handles disconnect event. it
  21  *  reports disconnect to upper layer, clean tx/rx packets,
  22  *  reset link state etc.
  23  *
  24  *  @param priv    A pointer to wlan_private structure
  25  *  @return        n/a
  26  */
  27 void libertas_mac_event_disconnected(wlan_private * priv)
  28 {
  29         wlan_adapter *adapter = priv->adapter;
  30         union iwreq_data wrqu;
  31
  32         if (adapter->connect_status != libertas_connected)
  33                 return;
  34
  35         lbs_pr_debug(1, "Handles disconnect event.\n");
  36
  37         memset(wrqu.ap_addr.sa_data, 0x00, ETH_ALEN);
  38         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
  39
  40         /*
  41          * Cisco AP sends EAP failure and de-auth in less than 0.5 ms.
  42          * It causes problem in the Supplicant
  43          */
  44
  45         msleep_interruptible(1000);
  46         wireless_send_event(priv->wlan_dev.netdev, SIOCGIWAP, &wrqu, NULL);
  47
  48         /* Free Tx and Rx packets */
  49         kfree_skb(priv->adapter->currenttxskb);
  50         priv->adapter->currenttxskb = NULL;
  51
  52         /* report disconnect to upper layer */
  53         netif_stop_queue(priv->wlan_dev.netdev);
  54         netif_carrier_off(priv->wlan_dev.netdev);
  55
  56         /* reset SNR/NF/RSSI values */
  57         memset(adapter->SNR, 0x00, sizeof(adapter->SNR));
  58         memset(adapter->NF, 0x00, sizeof(adapter->NF));
  59         memset(adapter->RSSI, 0x00, sizeof(adapter->RSSI));
  60         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
  61         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
  62         adapter->nextSNRNF = 0;
  63         adapter->numSNRNF = 0;
  64         adapter->rxpd_rate = 0;
  65         lbs_pr_debug(1, "Current SSID=%s, ssid length=%u\n",
  66                adapter->curbssparams.ssid.ssid,
  67                adapter->curbssparams.ssid.ssidlength);
  68         lbs_pr_debug(1, "Previous SSID=%s, ssid length=%u\n",
  69                adapter->previousssid.ssid, adapter->previousssid.ssidlength);
  70
  71         /* reset internal flags */
  72         adapter->secinfo.WPAenabled = 0;
  73         adapter->secinfo.WPA2enabled = 0;
  74         adapter->wpa_ie_len = 0;
  75         adapter->secinfo.auth1xalg = WLAN_1X_AUTH_ALG_NONE;
  76         adapter->secinfo.Encryptionmode = CIPHER_NONE;
  77
  78         adapter->connect_status = libertas_disconnected;
  79
  80         /*
  81          * memorize the previous SSID and BSSID
  82          * it could be used for re-assoc
  83          */
  84         memcpy(&adapter->previousssid,
  85                &adapter->curbssparams.ssid, sizeof(struct WLAN_802_11_SSID));
  86         memcpy(adapter->previousbssid,
  87                adapter->curbssparams.bssid, ETH_ALEN);
  88
  89         /* need to erase the current SSID and BSSID info */
  90         adapter->pattemptedbssdesc = NULL;
  91         memset(&adapter->curbssparams, 0, sizeof(adapter->curbssparams));
  92
  93         if (adapter->psstate != PS_STATE_FULL_POWER) {
  94                 /* make firmware to exit PS mode */
  95                 lbs_pr_debug(1, "Disconnected, so exit PS mode.\n");
  96                 libertas_ps_wakeup(priv, 0);
  97         }
  98 }
  99
 100 /**
 101  *  @brief This function handles MIC failure event.
 102  *
 103  *  @param priv    A pointer to wlan_private structure
 104  *  @para  event   the event id
 105  *  @return        n/a
 106  */
 107 static void handle_mic_failureevent(wlan_private * priv, u32 event)
 108 {
 109         char buf[50];
 110
 111         memset(buf, 0, sizeof(buf));
 112
 113         sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
 114
 115         if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) {
 116                 strcat(buf, "unicast ");
 117         } else {
 118                 strcat(buf, "multicast ");
 119         }
 120
 121         libertas_send_iwevcustom_event(priv, buf);
 122 }
 123
 124 static int wlan_ret_reg_access(wlan_private * priv,
 125                                u16 type, struct cmd_ds_command *resp)
 126 {
 127         wlan_adapter *adapter = priv->adapter;
 128
 129         ENTER();
 130
 131         switch (type) {
 132         case cmd_ret_mac_reg_access:
 133                 {
 134                         struct cmd_ds_mac_reg_access *reg;
 135
 136                         reg =
 137                             (struct cmd_ds_mac_reg_access *)&resp->params.
 138                             macreg;
 139
 140                         adapter->offsetvalue.offset = reg->offset;
 141                         adapter->offsetvalue.value = reg->value;
 142                         break;
 143                 }
 144
 145         case cmd_ret_bbp_reg_access:
 146                 {
 147                         struct cmd_ds_bbp_reg_access *reg;
 148                         reg =
 149                             (struct cmd_ds_bbp_reg_access *)&resp->params.
 150                             bbpreg;
 151
 152                         adapter->offsetvalue.offset = reg->offset;
 153                         adapter->offsetvalue.value = reg->value;
 154                         break;
 155                 }
 156
 157         case cmd_ret_rf_reg_access:
 158                 {
 159                         struct cmd_ds_rf_reg_access *reg;
 160                         reg =
 161                             (struct cmd_ds_rf_reg_access *)&resp->params.
 162                             rfreg;
 163
 164                         adapter->offsetvalue.offset = reg->offset;
 165                         adapter->offsetvalue.value = reg->value;
 166                         break;
 167                 }
 168
 169         default:
 170                 LEAVE();
 171                 return -1;
 172         }
 173
 174         LEAVE();
 175         return 0;
 176 }
 177
 178 static int wlan_ret_get_hw_spec(wlan_private * priv,
 179                                 struct cmd_ds_command *resp)
 180 {
 181         u32 i;
 182         struct cmd_ds_get_hw_spec *hwspec = &resp->params.hwspec;
 183         wlan_adapter *adapter = priv->adapter;
 184         int ret = 0;
 185
 186         ENTER();
 187
 188         adapter->fwcapinfo = le32_to_cpu(hwspec->fwcapinfo);
 189
 190         adapter->fwreleasenumber = hwspec->fwreleasenumber;
 191
 192         lbs_pr_debug(1, "GET_HW_SPEC: FWReleaseVersion- 0x%X\n",
 193                adapter->fwreleasenumber);
 194         lbs_pr_debug(1, "GET_HW_SPEC: Permanent addr- %2x:%2x:%2x:%2x:%2x:%2x\n",
 195                hwspec->permanentaddr[0], hwspec->permanentaddr[1],
 196                hwspec->permanentaddr[2], hwspec->permanentaddr[3],
 197                hwspec->permanentaddr[4], hwspec->permanentaddr[5]);
 198         lbs_pr_debug(1, "GET_HW_SPEC: hwifversion=0x%X  version=0x%X\n",
 199                hwspec->hwifversion, hwspec->version);
 200
 201         adapter->regioncode = le16_to_cpu(hwspec->regioncode);
 202
 203         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 204                 /* use the region code to search for the index */
 205                 if (adapter->regioncode == libertas_region_code_to_index[i]) {
 206                         adapter->regiontableindex = (u16) i;
 207                         break;
 208                 }
 209         }
 210
 211         /* if it's unidentified region code, use the default (USA) */
 212         if (i >= MRVDRV_MAX_REGION_CODE) {
 213                 adapter->regioncode = 0x10;
 214                 adapter->regiontableindex = 0;
 215                 lbs_pr_info(
 216                        "unidentified region code, use the default (USA)\n");
 217         }
 218
 219         if (adapter->current_addr[0] == 0xff) {
 220                 memmove(adapter->current_addr, hwspec->permanentaddr,
 221                         ETH_ALEN);
 222         }
 223
 224         memcpy(priv->wlan_dev.netdev->dev_addr, adapter->current_addr, ETH_ALEN);
 225         memcpy(priv->mesh_dev->dev_addr, adapter->current_addr, ETH_ALEN);
 226
 227         if (libertas_set_regiontable(priv, adapter->regioncode, 0)) {
 228                 ret = -1;
 229                 goto done;
 230         }
 231
 232         if (libertas_set_universaltable(priv, 0)) {
 233                 ret = -1;
 234                 goto done;
 235         }
 236
 237       done:
 238         LEAVE();
 239         return ret;
 240 }
 241
 242 static int wlan_ret_802_11_sleep_params(wlan_private * priv,
 243                                         struct cmd_ds_command *resp)
 244 {
 245         struct cmd_ds_802_11_sleep_params *sp = &resp->params.sleep_params;
 246         wlan_adapter *adapter = priv->adapter;
 247
 248         ENTER();
 249
 250         lbs_pr_debug(1, "error=%x offset=%x stabletime=%x calcontrol=%x\n"
 251                " extsleepclk=%x\n", sp->error, sp->offset,
 252                sp->stabletime, sp->calcontrol, sp->externalsleepclk);
 253         adapter->sp.sp_error = le16_to_cpu(sp->error);
 254         adapter->sp.sp_offset = le16_to_cpu(sp->offset);
 255         adapter->sp.sp_stabletime = le16_to_cpu(sp->stabletime);
 256         adapter->sp.sp_calcontrol = le16_to_cpu(sp->calcontrol);
 257         adapter->sp.sp_extsleepclk = le16_to_cpu(sp->externalsleepclk);
 258         adapter->sp.sp_reserved = le16_to_cpu(sp->reserved);
 259
 260         LEAVE();
 261         return 0;
 262 }
 263
 264 static int wlan_ret_802_11_stat(wlan_private * priv,
 265                                 struct cmd_ds_command *resp)
 266 {
 267 /*      currently adapter->wlan802_11Stat is unused
 268
 269         struct cmd_ds_802_11_get_stat *p11Stat = &resp->params.gstat;
 270         wlan_adapter *adapter = priv->adapter;
 271
 272         // TODO Convert it to Big endian befor copy
 273         memcpy(&adapter->wlan802_11Stat,
 274                p11Stat, sizeof(struct cmd_ds_802_11_get_stat));
 275 */
 276         return 0;
 277 }
 278
 279 static int wlan_ret_802_11_snmp_mib(wlan_private * priv,
 280                                     struct cmd_ds_command *resp)
 281 {
 282         struct cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
 283         u16 oid = le16_to_cpu(smib->oid);
 284         u16 querytype = le16_to_cpu(smib->querytype);
 285
 286         ENTER();
 287
 288         lbs_pr_debug(1, "SNMP_RESP: value of the oid = %x, querytype=%x\n", oid,
 289                querytype);
 290         lbs_pr_debug(1, "SNMP_RESP: Buf size  = %x\n",
 291                le16_to_cpu(smib->bufsize));
 292
 293         if (querytype == cmd_act_get) {
 294                 switch (oid) {
 295                 case fragthresh_i:
 296                         priv->adapter->fragthsd =
 297                             le16_to_cpu(*
 298                                              ((unsigned short *)(smib->value)));
 299                         lbs_pr_debug(1, "SNMP_RESP: fragthsd =%u\n",
 300                                priv->adapter->fragthsd);
 301                         break;
 302                 case rtsthresh_i:
 303                         priv->adapter->rtsthsd =
 304                             le16_to_cpu(*
 305                                              ((unsigned short *)(smib->value)));
 306                         lbs_pr_debug(1, "SNMP_RESP: rtsthsd =%u\n",
 307                                priv->adapter->rtsthsd);
 308                         break;
 309                 case short_retrylim_i:
 310                         priv->adapter->txretrycount =
 311                             le16_to_cpu(*
 312                                              ((unsigned short *)(smib->value)));
 313                         lbs_pr_debug(1, "SNMP_RESP: txretrycount =%u\n",
 314                                priv->adapter->rtsthsd);
 315                         break;
 316                 default:
 317                         break;
 318                 }
 319         }
 320
 321         LEAVE();
 322         return 0;
 323 }
 324
 325 static int wlan_ret_802_11_key_material(wlan_private * priv,
 326                                         struct cmd_ds_command *resp)
 327 {
 328         struct cmd_ds_802_11_key_material *pkeymaterial =
 329             &resp->params.keymaterial;
 330         wlan_adapter *adapter = priv->adapter;
 331         u16 action = le16_to_cpu(pkeymaterial->action);
 332
 333         ENTER();
 334
 335         /* Copy the returned key to driver private data */
 336         if (action == cmd_act_get) {
 337                 u8 * buf_ptr = (u8 *) &pkeymaterial->keyParamSet;
 338                 u8 * resp_end = (u8 *) (resp + le16_to_cpu(resp->size));
 339
 340                 while (buf_ptr < resp_end) {
 341                         struct MrvlIEtype_keyParamSet * pkeyparamset =
 342                             (struct MrvlIEtype_keyParamSet *) buf_ptr;
 343                         struct WLAN_802_11_KEY * pkey;
 344                         u16 key_info = le16_to_cpu(pkeyparamset->keyinfo);
 345                         u16 param_set_len = le16_to_cpu(pkeyparamset->length);
 346                         u8 * end;
 347                         u16 key_len = le16_to_cpu(pkeyparamset->keylen);
 348
 349                         end = (u8 *) pkeyparamset + sizeof (pkeyparamset->type)
 350                                                   + sizeof (pkeyparamset->length)
 351                                                   + param_set_len;
 352                         /* Make sure we don't access past the end of the IEs */
 353                         if (end > resp_end)
 354                                 break;
 355
 356                         if (key_info & KEY_INFO_WPA_UNICAST)
 357                                 pkey = &adapter->wpa_unicast_key;
 358                         else if (key_info & KEY_INFO_WPA_MCAST)
 359                                 pkey = &adapter->wpa_mcast_key;
 360                         else
 361                                 break;
 362
 363                         /* Copy returned key into driver */
 364                         memset(pkey, 0, sizeof(struct WLAN_802_11_KEY));
 365                         if (key_len > sizeof(pkey->key))
 366                                 break;
 367                         pkey->type = le16_to_cpu(pkeyparamset->keytypeid);
 368                         pkey->flags = le16_to_cpu(pkeyparamset->keyinfo);
 369                         pkey->len = le16_to_cpu(pkeyparamset->keylen);
 370                         memcpy(pkey->key, pkeyparamset->key, pkey->len);
 371
 372                         buf_ptr = end + 1;
 373                 }
 374         }
 375
 376         LEAVE();
 377         return 0;
 378 }
 379
 380 static int wlan_ret_802_11_mac_address(wlan_private * priv,
 381                                        struct cmd_ds_command *resp)
 382 {
 383         struct cmd_ds_802_11_mac_address *macadd = &resp->params.macadd;
 384         wlan_adapter *adapter = priv->adapter;
 385
 386         ENTER();
 387
 388         memcpy(adapter->current_addr, macadd->macadd, ETH_ALEN);
 389
 390         LEAVE();
 391         return 0;
 392 }
 393
 394 static int wlan_ret_802_11_rf_tx_power(wlan_private * priv,
 395                                        struct cmd_ds_command *resp)
 396 {
 397         struct cmd_ds_802_11_rf_tx_power *rtp = &resp->params.txp;
 398         wlan_adapter *adapter = priv->adapter;
 399
 400         ENTER();
 401
 402         adapter->txpowerlevel = le16_to_cpu(rtp->currentlevel);
 403
 404         lbs_pr_debug(1, "Current TxPower Level = %d\n", adapter->txpowerlevel);
 405
 406         LEAVE();
 407         return 0;
 408 }
 409
 410 static int wlan_ret_802_11_rf_antenna(wlan_private * priv,
 411                                       struct cmd_ds_command *resp)
 412 {
 413         struct cmd_ds_802_11_rf_antenna *pAntenna = &resp->params.rant;
 414         wlan_adapter *adapter = priv->adapter;
 415         u16 action = le16_to_cpu(pAntenna->action);
 416
 417         if (action == cmd_act_get_rx)
 418                 adapter->rxantennamode =
 419                     le16_to_cpu(pAntenna->antennamode);
 420
 421         if (action == cmd_act_get_tx)
 422                 adapter->txantennamode =
 423                     le16_to_cpu(pAntenna->antennamode);
 424
 425         lbs_pr_debug(1, "RF_ANT_RESP: action = 0x%x, mode = 0x%04x\n",
 426                action, le16_to_cpu(pAntenna->antennamode));
 427
 428         return 0;
 429 }
 430
 431 static int wlan_ret_802_11_rate_adapt_rateset(wlan_private * priv,
 432                                               struct cmd_ds_command *resp)
 433 {
 434         struct cmd_ds_802_11_rate_adapt_rateset *rates =
 435             &resp->params.rateset;
 436         wlan_adapter *adapter = priv->adapter;
 437
 438         ENTER();
 439
 440         if (rates->action == cmd_act_get) {
 441                 adapter->enablehwauto = rates->enablehwauto;
 442                 adapter->ratebitmap = rates->bitmap;
 443         }
 444
 445         LEAVE();
 446
 447         return 0;
 448 }
 449
 450 static int wlan_ret_802_11_data_rate(wlan_private * priv,
 451                                      struct cmd_ds_command *resp)
 452 {
 453         struct cmd_ds_802_11_data_rate *pdatarate = &resp->params.drate;
 454         wlan_adapter *adapter = priv->adapter;
 455         u8 dot11datarate;
 456
 457         ENTER();
 458
 459         lbs_dbg_hex("DATA_RATE_RESP: data_rate- ",
 460                 (u8 *) pdatarate, sizeof(struct cmd_ds_802_11_data_rate));
 461
 462         dot11datarate = pdatarate->datarate[0];
 463         if (pdatarate->action == cmd_act_get_tx_rate) {
 464                 memcpy(adapter->libertas_supported_rates, pdatarate->datarate,
 465                        sizeof(adapter->libertas_supported_rates));
 466         }
 467         adapter->datarate = libertas_index_to_data_rate(dot11datarate);
 468
 469         LEAVE();
 470         return 0;
 471 }
 472
 473 static int wlan_ret_802_11_rf_channel(wlan_private * priv,
 474                                       struct cmd_ds_command *resp)
 475 {
 476         struct cmd_ds_802_11_rf_channel *rfchannel =
 477             &resp->params.rfchannel;
 478         wlan_adapter *adapter = priv->adapter;
 479         u16 action = le16_to_cpu(rfchannel->action);
 480         u16 newchannel = le16_to_cpu(rfchannel->currentchannel);
 481
 482         ENTER();
 483
 484         if (action == cmd_opt_802_11_rf_channel_get
 485             && adapter->curbssparams.channel != newchannel) {
 486                 lbs_pr_debug(1, "channel Switch: %d to %d\n",
 487                        adapter->curbssparams.channel, newchannel);
 488
 489                 /* Update the channel again */
 490                 adapter->curbssparams.channel = newchannel;
 491         }
 492
 493         LEAVE();
 494         return 0;
 495 }
 496
 497 static int wlan_ret_802_11_rssi(wlan_private * priv,
 498                                 struct cmd_ds_command *resp)
 499 {
 500         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
 501         wlan_adapter *adapter = priv->adapter;
 502
 503         /* store the non average value */
 504         adapter->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
 505         adapter->NF[TYPE_BEACON][TYPE_NOAVG] =
 506             le16_to_cpu(rssirsp->noisefloor);
 507
 508         adapter->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
 509         adapter->NF[TYPE_BEACON][TYPE_AVG] =
 510             le16_to_cpu(rssirsp->avgnoisefloor);
 511
 512         adapter->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 513             CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_NOAVG],
 514                      adapter->NF[TYPE_BEACON][TYPE_NOAVG]);
 515
 516         adapter->RSSI[TYPE_BEACON][TYPE_AVG] =
 517             CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
 518                      adapter->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
 519
 520         lbs_pr_debug(1, "Beacon RSSI value = 0x%x\n",
 521                adapter->RSSI[TYPE_BEACON][TYPE_AVG]);
 522
 523         return 0;
 524 }
 525
 526 static int wlan_ret_802_11_eeprom_access(wlan_private * priv,
 527                                   struct cmd_ds_command *resp)
 528 {
 529         wlan_adapter *adapter = priv->adapter;
 530         struct wlan_ioctl_regrdwr *pbuf;
 531         pbuf = (struct wlan_ioctl_regrdwr *) adapter->prdeeprom;
 532
 533         lbs_pr_debug(1, "eeprom read len=%x\n",
 534                le16_to_cpu(resp->params.rdeeprom.bytecount));
 535         if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) {
 536                 pbuf->NOB = 0;
 537                 lbs_pr_debug(1, "eeprom read return length is too big\n");
 538                 return -1;
 539         }
 540         pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount);
 541         if (pbuf->NOB > 0) {
 542
 543                 memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value,
 544                        le16_to_cpu(resp->params.rdeeprom.bytecount));
 545                 lbs_dbg_hex("adapter", (char *)&pbuf->value,
 546                         le16_to_cpu(resp->params.rdeeprom.bytecount));
 547         }
 548         return 0;
 549 }
 550
 551 static int wlan_ret_get_log(wlan_private * priv,
 552                             struct cmd_ds_command *resp)
 553 {
 554         struct cmd_ds_802_11_get_log *logmessage =
 555             (struct cmd_ds_802_11_get_log *)&resp->params.glog;
 556         wlan_adapter *adapter = priv->adapter;
 557
 558         ENTER();
 559
 560         /* TODO Convert it to Big Endian before copy */
 561         memcpy(&adapter->logmsg, logmessage,
 562                sizeof(struct cmd_ds_802_11_get_log));
 563
 564         LEAVE();
 565         return 0;
 566 }
 567
 568 static inline int handle_cmd_response(u16 respcmd,
 569                                       struct cmd_ds_command *resp,
 570                                       wlan_private *priv)
 571 {
 572         int ret = 0;
 573         unsigned long flags;
 574         wlan_adapter *adapter = priv->adapter;
 575
 576         switch (respcmd) {
 577         case cmd_ret_mac_reg_access:
 578         case cmd_ret_bbp_reg_access:
 579         case cmd_ret_rf_reg_access:
 580                 ret = wlan_ret_reg_access(priv, respcmd, resp);
 581                 break;
 582
 583         case cmd_ret_hw_spec_info:
 584                 ret = wlan_ret_get_hw_spec(priv, resp);
 585                 break;
 586
 587         case cmd_ret_802_11_scan:
 588                 ret = libertas_ret_80211_scan(priv, resp);
 589                 break;
 590
 591         case cmd_ret_802_11_get_log:
 592                 ret = wlan_ret_get_log(priv, resp);
 593                 break;
 594
 595         case cmd_ret_802_11_associate:
 596         case cmd_ret_802_11_reassociate:
 597                 ret = libertas_ret_80211_associate(priv, resp);
 598                 break;
 599
 600         case cmd_ret_802_11_disassociate:
 601         case cmd_ret_802_11_deauthenticate:
 602                 ret = libertas_ret_80211_disassociate(priv, resp);
 603                 break;
 604
 605         case cmd_ret_802_11_ad_hoc_start:
 606         case cmd_ret_802_11_ad_hoc_join:
 607                 ret = libertas_ret_80211_ad_hoc_start(priv, resp);
 608                 break;
 609
 610         case cmd_ret_802_11_stat:
 611                 ret = wlan_ret_802_11_stat(priv, resp);
 612                 break;
 613
 614         case cmd_ret_802_11_snmp_mib:
 615                 ret = wlan_ret_802_11_snmp_mib(priv, resp);
 616                 break;
 617
 618         case cmd_ret_802_11_rf_tx_power:
 619                 ret = wlan_ret_802_11_rf_tx_power(priv, resp);
 620                 break;
 621
 622         case cmd_ret_802_11_set_afc:
 623         case cmd_ret_802_11_get_afc:
 624                 spin_lock_irqsave(&adapter->driver_lock, flags);
 625                 memmove(adapter->cur_cmd->pdata_buf,
 626                         &resp->params.afc,
 627                         sizeof(struct cmd_ds_802_11_afc));
 628                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 629
 630                 break;
 631         case cmd_ret_802_11_rf_antenna:
 632                 ret = wlan_ret_802_11_rf_antenna(priv, resp);
 633                 break;
 634
 635         case cmd_ret_mac_multicast_adr:
 636         case cmd_ret_mac_control:
 637         case cmd_ret_802_11_set_wep:
 638         case cmd_ret_802_11_reset:
 639         case cmd_ret_802_11_authenticate:
 640         case cmd_ret_802_11_radio_control:
 641         case cmd_ret_802_11_beacon_stop:
 642         case cmd_ret_802_11_enable_rsn:
 643                 break;
 644
 645         case cmd_ret_802_11_data_rate:
 646                 ret = wlan_ret_802_11_data_rate(priv, resp);
 647                 break;
 648         case cmd_ret_802_11_rate_adapt_rateset:
 649                 ret = wlan_ret_802_11_rate_adapt_rateset(priv, resp);
 650                 break;
 651         case cmd_ret_802_11_rf_channel:
 652                 ret = wlan_ret_802_11_rf_channel(priv, resp);
 653                 break;
 654
 655         case cmd_ret_802_11_rssi:
 656                 ret = wlan_ret_802_11_rssi(priv, resp);
 657                 break;
 658
 659         case cmd_ret_802_11_mac_address:
 660                 ret = wlan_ret_802_11_mac_address(priv, resp);
 661                 break;
 662
 663         case cmd_ret_802_11_ad_hoc_stop:
 664                 ret = libertas_ret_80211_ad_hoc_stop(priv, resp);
 665                 break;
 666
 667         case cmd_ret_802_11_key_material:
 668                 lbs_pr_debug(1, "CMD_RESP: KEY_MATERIAL command response\n");
 669                 ret = wlan_ret_802_11_key_material(priv, resp);
 670                 break;
 671
 672         case cmd_ret_802_11_eeprom_access:
 673                 ret = wlan_ret_802_11_eeprom_access(priv, resp);
 674                 break;
 675
 676         case cmd_ret_802_11d_domain_info:
 677                 ret = libertas_ret_802_11d_domain_info(priv, resp);
 678                 break;
 679
 680         case cmd_ret_802_11_sleep_params:
 681                 ret = wlan_ret_802_11_sleep_params(priv, resp);
 682                 break;
 683         case cmd_ret_802_11_inactivity_timeout:
 684                 spin_lock_irqsave(&adapter->driver_lock, flags);
 685                 *((u16 *) adapter->cur_cmd->pdata_buf) =
 686                     le16_to_cpu(resp->params.inactivity_timeout.timeout);
 687                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 688                 break;
 689
 690         case cmd_ret_802_11_tpc_cfg:
 691                 spin_lock_irqsave(&adapter->driver_lock, flags);
 692                 memmove(adapter->cur_cmd->pdata_buf,
 693                         &resp->params.tpccfg,
 694                         sizeof(struct cmd_ds_802_11_tpc_cfg));
 695                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 696                 break;
 697         case cmd_ret_802_11_led_gpio_ctrl:
 698                 spin_lock_irqsave(&adapter->driver_lock, flags);
 699                 memmove(adapter->cur_cmd->pdata_buf,
 700                         &resp->params.ledgpio,
 701                         sizeof(struct cmd_ds_802_11_led_ctrl));
 702                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 703                 break;
 704         case cmd_ret_802_11_pwr_cfg:
 705                 spin_lock_irqsave(&adapter->driver_lock, flags);
 706                 memmove(adapter->cur_cmd->pdata_buf,
 707                         &resp->params.pwrcfg,
 708                         sizeof(struct cmd_ds_802_11_pwr_cfg));
 709                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 710
 711                 break;
 712
 713         case cmd_ret_get_tsf:
 714                 spin_lock_irqsave(&adapter->driver_lock, flags);
 715                 memcpy(priv->adapter->cur_cmd->pdata_buf,
 716                        &resp->params.gettsf.tsfvalue, sizeof(u64));
 717                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 718                 break;
 719         case cmd_ret_bt_access:
 720                 spin_lock_irqsave(&adapter->driver_lock, flags);
 721                 if (adapter->cur_cmd->pdata_buf)
 722                         memcpy(adapter->cur_cmd->pdata_buf,
 723                                &resp->params.bt.addr1, 2 * ETH_ALEN);
 724                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 725                 break;
 726         case cmd_ret_fwt_access:
 727                 spin_lock_irqsave(&adapter->driver_lock, flags);
 728                 if (adapter->cur_cmd->pdata_buf)
 729                         memcpy(adapter->cur_cmd->pdata_buf,
 730                                &resp->params.fwt,
 731                                 sizeof(resp->params.fwt));
 732                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 733                 break;
 734         case cmd_ret_mesh_access:
 735                 if (adapter->cur_cmd->pdata_buf)
 736                         memcpy(adapter->cur_cmd->pdata_buf,
 737                                &resp->params.mesh,
 738                                sizeof(resp->params.mesh));
 739                 break;
 740         case cmd_rte_802_11_tx_rate_query:
 741                 priv->adapter->txrate = resp->params.txrate.txrate;
 742                 break;
 743         default:
 744                 lbs_pr_debug(1, "CMD_RESP: Unknown command response %#x\n",
 745                        resp->command);
 746                 break;
 747         }
 748         return ret;
 749 }
 750
 751 int libertas_process_rx_command(wlan_private * priv)
 752 {
 753         u16 respcmd;
 754         struct cmd_ds_command *resp;
 755         wlan_adapter *adapter = priv->adapter;
 756         int ret = 0;
 757         ulong flags;
 758         u16 result;
 759
 760         ENTER();
 761
 762         lbs_pr_debug(1, "CMD_RESP: @ %lu\n", jiffies);
 763
 764         /* Now we got response from FW, cancel the command timer */
 765         del_timer(&adapter->command_timer);
 766
 767         mutex_lock(&adapter->lock);
 768         spin_lock_irqsave(&adapter->driver_lock, flags);
 769
 770         if (!adapter->cur_cmd) {
 771                 lbs_pr_debug(1, "CMD_RESP: NULL cur_cmd=%p\n", adapter->cur_cmd);
 772                 ret = -1;
 773                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 774                 goto done;
 775         }
 776         resp = (struct cmd_ds_command *)(adapter->cur_cmd->bufvirtualaddr);
 777
 778         lbs_dbg_hex("CMD_RESP:", adapter->cur_cmd->bufvirtualaddr,
 779                 priv->wlan_dev.upld_len);
 780
 781         respcmd = le16_to_cpu(resp->command);
 782
 783         result = le16_to_cpu(resp->result);
 784
 785         lbs_pr_debug(1, "CMD_RESP: %x result: %d length: %d\n", respcmd,
 786                result, priv->wlan_dev.upld_len);
 787
 788         if (!(respcmd & 0x8000)) {
 789                 lbs_pr_debug(1, "Invalid response to command!");
 790                 adapter->cur_cmd_retcode = -1;
 791                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 792                 adapter->nr_cmd_pending--;
 793                 adapter->cur_cmd = NULL;
 794                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 795                 ret = -1;
 796                 goto done;
 797         }
 798
 799         /* Store the response code to cur_cmd_retcode. */
 800         adapter->cur_cmd_retcode = le16_to_cpu(resp->result);
 801
 802         if (respcmd == cmd_ret_802_11_ps_mode) {
 803                 struct cmd_ds_802_11_ps_mode *psmode;
 804
 805                 psmode = &resp->params.psmode;
 806                 lbs_pr_debug(1,
 807                        "CMD_RESP: PS_MODE cmd reply result=%#x action=0x%X\n",
 808                        resp->result, psmode->action);
 809                 psmode->action = cpu_to_le16(psmode->action);
 810
 811                 if (result) {
 812                         lbs_pr_debug(1, "CMD_RESP: PS command failed- %#x \n",
 813                                resp->result);
 814                         if (adapter->inframode == wlan802_11ibss) {
 815                                 /*
 816                                  * We should not re-try enter-ps command in
 817                                  * ad-hoc mode. It takes place in
 818                                  * libertas_execute_next_command().
 819                                  */
 820                                 if (psmode->action == cmd_subcmd_enter_ps)
 821                                         adapter->psmode =
 822                                             wlan802_11powermodecam;
 823                         }
 824                 } else if (psmode->action == cmd_subcmd_enter_ps) {
 825                         adapter->needtowakeup = 0;
 826                         adapter->psstate = PS_STATE_AWAKE;
 827
 828                         lbs_pr_debug(1, "CMD_RESP: Enter_PS command response\n");
 829                         if (adapter->connect_status != libertas_connected) {
 830                                 /*
 831                                  * When Deauth Event received before Enter_PS command
 832                                  * response, We need to wake up the firmware.
 833                                  */
 834                                 lbs_pr_debug(1,
 835                                        "Disconnected, Going to invoke libertas_ps_wakeup\n");
 836
 837                                 mutex_unlock(&adapter->lock);
 838                                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 839                                 libertas_ps_wakeup(priv, 0);
 840                                 mutex_lock(&adapter->lock);
 841                                 spin_lock_irqsave(&adapter->driver_lock, flags);
 842                         }
 843                 } else if (psmode->action == cmd_subcmd_exit_ps) {
 844                         adapter->needtowakeup = 0;
 845                         adapter->psstate = PS_STATE_FULL_POWER;
 846                         lbs_pr_debug(1, "CMD_RESP: Exit_PS command response\n");
 847                 } else {
 848                         lbs_pr_debug(1, "CMD_RESP: PS- action=0x%X\n",
 849                                psmode->action);
 850                 }
 851
 852                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 853                 adapter->nr_cmd_pending--;
 854                 adapter->cur_cmd = NULL;
 855                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 856
 857                 ret = 0;
 858                 goto done;
 859         }
 860
 861         if (adapter->cur_cmd->cmdflags & CMD_F_HOSTCMD) {
 862                 /* Copy the response back to response buffer */
 863                 memcpy(adapter->cur_cmd->pdata_buf, resp, resp->size);
 864
 865                 adapter->cur_cmd->cmdflags &= ~CMD_F_HOSTCMD;
 866         }
 867
 868         /* If the command is not successful, cleanup and return failure */
 869         if ((result != 0 || !(respcmd & 0x8000))) {
 870                 lbs_pr_debug(1, "CMD_RESP: command reply %#x result=%#x\n",
 871                        resp->command, resp->result);
 872                 /*
 873                  * Handling errors here
 874                  */
 875                 switch (respcmd) {
 876                 case cmd_ret_hw_spec_info:
 877                 case cmd_ret_802_11_reset:
 878                         lbs_pr_debug(1, "CMD_RESP: Reset command failed\n");
 879                         break;
 880
 881                 }
 882
 883                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 884                 adapter->nr_cmd_pending--;
 885                 adapter->cur_cmd = NULL;
 886                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 887
 888                 ret = -1;
 889                 goto done;
 890         }
 891
 892         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 893
 894         ret = handle_cmd_response(respcmd, resp, priv);
 895
 896         spin_lock_irqsave(&adapter->driver_lock, flags);
 897         if (adapter->cur_cmd) {
 898                 /* Clean up and Put current command back to cmdfreeq */
 899                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 900                 adapter->nr_cmd_pending--;
 901                 WARN_ON(adapter->nr_cmd_pending > 128);
 902                 adapter->cur_cmd = NULL;
 903         }
 904         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 905
 906 done:
 907         mutex_unlock(&adapter->lock);
 908         LEAVE();
 909         return ret;
 910 }
 911
 912 int libertas_process_event(wlan_private * priv)
 913 {
 914         int ret = 0;
 915         wlan_adapter *adapter = priv->adapter;
 916         u32 eventcause;
 917
 918         spin_lock_irq(&adapter->driver_lock);
 919         eventcause = adapter->eventcause;
 920         spin_unlock_irq(&adapter->driver_lock);
 921
 922         ENTER();
 923
 924         lbs_pr_debug(1, "EVENT Cause %x\n", eventcause);
 925
 926         switch (eventcause >> SBI_EVENT_CAUSE_SHIFT) {
 927         case MACREG_INT_CODE_LINK_SENSED:
 928                 lbs_pr_debug(1, "EVENT: MACREG_INT_CODE_LINK_SENSED\n");
 929                 break;
 930
 931         case MACREG_INT_CODE_DEAUTHENTICATED:
 932                 lbs_pr_debug(1, "EVENT: Deauthenticated\n");
 933                 libertas_mac_event_disconnected(priv);
 934                 break;
 935
 936         case MACREG_INT_CODE_DISASSOCIATED:
 937                 lbs_pr_debug(1, "EVENT: Disassociated\n");
 938                 libertas_mac_event_disconnected(priv);
 939                 break;
 940
 941         case MACREG_INT_CODE_LINK_LOSE_NO_SCAN:
 942                 lbs_pr_debug(1, "EVENT: Link lost\n");
 943                 libertas_mac_event_disconnected(priv);
 944                 break;
 945
 946         case MACREG_INT_CODE_PS_SLEEP:
 947                 lbs_pr_debug(1, "EVENT: SLEEP\n");
 948                 lbs_pr_debug(1, "_");
 949
 950                 /* handle unexpected PS SLEEP event */
 951                 if (adapter->psstate == PS_STATE_FULL_POWER) {
 952                         lbs_pr_debug(1,
 953                                "EVENT: In FULL POWER mode - ignore PS SLEEP\n");
 954                         break;
 955                 }
 956                 adapter->psstate = PS_STATE_PRE_SLEEP;
 957
 958                 libertas_ps_confirm_sleep(priv, (u16) adapter->psmode);
 959
 960                 break;
 961
 962         case MACREG_INT_CODE_PS_AWAKE:
 963                 lbs_pr_debug(1, "EVENT: AWAKE \n");
 964                 lbs_pr_debug(1, "|");
 965
 966                 /* handle unexpected PS AWAKE event */
 967                 if (adapter->psstate == PS_STATE_FULL_POWER) {
 968                         lbs_pr_debug(1,
 969                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
 970                         break;
 971                 }
 972
 973                 adapter->psstate = PS_STATE_AWAKE;
 974
 975                 if (adapter->needtowakeup) {
 976                         /*
 977                          * wait for the command processing to finish
 978                          * before resuming sending
 979                          * adapter->needtowakeup will be set to FALSE
 980                          * in libertas_ps_wakeup()
 981                          */
 982                         lbs_pr_debug(1, "Waking up...\n");
 983                         libertas_ps_wakeup(priv, 0);
 984                 }
 985                 break;
 986
 987         case MACREG_INT_CODE_MIC_ERR_UNICAST:
 988                 lbs_pr_debug(1, "EVENT: UNICAST MIC ERROR\n");
 989                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
 990                 break;
 991
 992         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
 993                 lbs_pr_debug(1, "EVENT: MULTICAST MIC ERROR\n");
 994                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 995                 break;
 996         case MACREG_INT_CODE_MIB_CHANGED:
 997         case MACREG_INT_CODE_INIT_DONE:
 998                 break;
 999
1000         case MACREG_INT_CODE_ADHOC_BCN_LOST:
1001                 lbs_pr_debug(1, "EVENT: HWAC - ADHOC BCN LOST\n");
1002                 break;
1003
1004         case MACREG_INT_CODE_RSSI_LOW:
1005                 lbs_pr_alert( "EVENT: RSSI_LOW\n");
1006                 break;
1007         case MACREG_INT_CODE_SNR_LOW:
1008                 lbs_pr_alert( "EVENT: SNR_LOW\n");
1009                 break;
1010         case MACREG_INT_CODE_MAX_FAIL:
1011                 lbs_pr_alert( "EVENT: MAX_FAIL\n");
1012                 break;
1013         case MACREG_INT_CODE_RSSI_HIGH:
1014                 lbs_pr_alert( "EVENT: RSSI_HIGH\n");
1015                 break;
1016         case MACREG_INT_CODE_SNR_HIGH:
1017                 lbs_pr_alert( "EVENT: SNR_HIGH\n");
1018                 break;
1019
1020         default:
1021                 lbs_pr_alert( "EVENT: unknown event id: %#x\n",
1022                        eventcause >> SBI_EVENT_CAUSE_SHIFT);
1023                 break;
1024         }
1025
1026         spin_lock_irq(&adapter->driver_lock);
1027         adapter->eventcause = 0;
1028         spin_unlock_irq(&adapter->driver_lock);
1029         LEAVE();
1030         return ret;
1031 }