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