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_deb_cmd("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_deb_cmd("Current SSID=%s, ssid length=%u\n",
  66                adapter->curbssparams.ssid.ssid,
  67                adapter->curbssparams.ssid.ssidlength);
  68         lbs_deb_cmd("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_deb_cmd("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         int ret = 0;
 126         wlan_adapter *adapter = priv->adapter;
 127
 128         lbs_deb_enter(LBS_DEB_CMD);
 129
 130         switch (type) {
 131         case cmd_ret_mac_reg_access:
 132                 {
 133                         struct cmd_ds_mac_reg_access *reg;
 134
 135                         reg =
 136                             (struct cmd_ds_mac_reg_access *)&resp->params.
 137                             macreg;
 138
 139                         adapter->offsetvalue.offset = reg->offset;
 140                         adapter->offsetvalue.value = reg->value;
 141                         break;
 142                 }
 143
 144         case cmd_ret_bbp_reg_access:
 145                 {
 146                         struct cmd_ds_bbp_reg_access *reg;
 147                         reg =
 148                             (struct cmd_ds_bbp_reg_access *)&resp->params.
 149                             bbpreg;
 150
 151                         adapter->offsetvalue.offset = reg->offset;
 152                         adapter->offsetvalue.value = reg->value;
 153                         break;
 154                 }
 155
 156         case cmd_ret_rf_reg_access:
 157                 {
 158                         struct cmd_ds_rf_reg_access *reg;
 159                         reg =
 160                             (struct cmd_ds_rf_reg_access *)&resp->params.
 161                             rfreg;
 162
 163                         adapter->offsetvalue.offset = reg->offset;
 164                         adapter->offsetvalue.value = reg->value;
 165                         break;
 166                 }
 167
 168         default:
 169                 ret = -1;
 170         }
 171
 172         lbs_deb_enter_args(LBS_DEB_CMD, "ret %d", ret);
 173         return ret;
 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         lbs_deb_enter(LBS_DEB_CMD);
 185
 186         adapter->fwcapinfo = le32_to_cpu(hwspec->fwcapinfo);
 187
 188         adapter->fwreleasenumber = hwspec->fwreleasenumber;
 189
 190         lbs_deb_cmd("GET_HW_SPEC: FWReleaseVersion- 0x%X\n",
 191                adapter->fwreleasenumber);
 192         lbs_deb_cmd("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_deb_cmd("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         if (priv->mesh_dev)
 224                 memcpy(priv->mesh_dev->dev_addr, adapter->current_addr,
 225                        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         lbs_deb_enter_args(LBS_DEB_CMD, "ret %d", ret);
 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         lbs_deb_enter(LBS_DEB_CMD);
 249
 250         lbs_deb_cmd("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         lbs_deb_enter(LBS_DEB_CMD);
 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         lbs_deb_enter(LBS_DEB_CMD);
 287
 288         lbs_deb_cmd("SNMP_RESP: value of the oid = %x, querytype=%x\n", oid,
 289                querytype);
 290         lbs_deb_cmd("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_deb_cmd("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_deb_cmd("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_deb_cmd("SNMP_RESP: txretrycount =%u\n",
 314                                priv->adapter->rtsthsd);
 315                         break;
 316                 default:
 317                         break;
 318                 }
 319         }
 320
 321         lbs_deb_enter(LBS_DEB_CMD);
 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         lbs_deb_enter(LBS_DEB_CMD);
 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         lbs_deb_enter(LBS_DEB_CMD);
 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         lbs_deb_enter(LBS_DEB_CMD);
 387
 388         memcpy(adapter->current_addr, macadd->macadd, ETH_ALEN);
 389
 390         lbs_deb_enter(LBS_DEB_CMD);
 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         lbs_deb_enter(LBS_DEB_CMD);
 401
 402         adapter->txpowerlevel = le16_to_cpu(rtp->currentlevel);
 403
 404         lbs_deb_cmd("Current TxPower Level = %d\n", adapter->txpowerlevel);
 405
 406         lbs_deb_enter(LBS_DEB_CMD);
 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_deb_cmd("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         lbs_deb_enter(LBS_DEB_CMD);
 439
 440         if (rates->action == cmd_act_get) {
 441                 adapter->enablehwauto = rates->enablehwauto;
 442                 adapter->ratebitmap = rates->bitmap;
 443         }
 444
 445         lbs_deb_enter(LBS_DEB_CMD);
 446         return 0;
 447 }
 448
 449 static int wlan_ret_802_11_data_rate(wlan_private * priv,
 450                                      struct cmd_ds_command *resp)
 451 {
 452         struct cmd_ds_802_11_data_rate *pdatarate = &resp->params.drate;
 453         wlan_adapter *adapter = priv->adapter;
 454         u8 dot11datarate;
 455
 456         lbs_deb_enter(LBS_DEB_CMD);
 457
 458         lbs_dbg_hex("DATA_RATE_RESP: data_rate- ",
 459                 (u8 *) pdatarate, sizeof(struct cmd_ds_802_11_data_rate));
 460
 461         dot11datarate = pdatarate->datarate[0];
 462         if (pdatarate->action == cmd_act_get_tx_rate) {
 463                 memcpy(adapter->libertas_supported_rates, pdatarate->datarate,
 464                        sizeof(adapter->libertas_supported_rates));
 465         }
 466         adapter->datarate = libertas_index_to_data_rate(dot11datarate);
 467
 468         lbs_deb_enter(LBS_DEB_CMD);
 469         return 0;
 470 }
 471
 472 static int wlan_ret_802_11_rf_channel(wlan_private * priv,
 473                                       struct cmd_ds_command *resp)
 474 {
 475         struct cmd_ds_802_11_rf_channel *rfchannel =
 476             &resp->params.rfchannel;
 477         wlan_adapter *adapter = priv->adapter;
 478         u16 action = le16_to_cpu(rfchannel->action);
 479         u16 newchannel = le16_to_cpu(rfchannel->currentchannel);
 480
 481         lbs_deb_enter(LBS_DEB_CMD);
 482
 483         if (action == cmd_opt_802_11_rf_channel_get
 484             && adapter->curbssparams.channel != newchannel) {
 485                 lbs_deb_cmd("channel Switch: %d to %d\n",
 486                        adapter->curbssparams.channel, newchannel);
 487
 488                 /* Update the channel again */
 489                 adapter->curbssparams.channel = newchannel;
 490         }
 491
 492         lbs_deb_enter(LBS_DEB_CMD);
 493         return 0;
 494 }
 495
 496 static int wlan_ret_802_11_rssi(wlan_private * priv,
 497                                 struct cmd_ds_command *resp)
 498 {
 499         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
 500         wlan_adapter *adapter = priv->adapter;
 501
 502         /* store the non average value */
 503         adapter->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
 504         adapter->NF[TYPE_BEACON][TYPE_NOAVG] =
 505             le16_to_cpu(rssirsp->noisefloor);
 506
 507         adapter->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
 508         adapter->NF[TYPE_BEACON][TYPE_AVG] =
 509             le16_to_cpu(rssirsp->avgnoisefloor);
 510
 511         adapter->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 512             CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_NOAVG],
 513                      adapter->NF[TYPE_BEACON][TYPE_NOAVG]);
 514
 515         adapter->RSSI[TYPE_BEACON][TYPE_AVG] =
 516             CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
 517                      adapter->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
 518
 519         lbs_deb_cmd("Beacon RSSI value = 0x%x\n",
 520                adapter->RSSI[TYPE_BEACON][TYPE_AVG]);
 521
 522         return 0;
 523 }
 524
 525 static int wlan_ret_802_11_eeprom_access(wlan_private * priv,
 526                                   struct cmd_ds_command *resp)
 527 {
 528         wlan_adapter *adapter = priv->adapter;
 529         struct wlan_ioctl_regrdwr *pbuf;
 530         pbuf = (struct wlan_ioctl_regrdwr *) adapter->prdeeprom;
 531
 532         lbs_deb_cmd("eeprom read len=%x\n",
 533                le16_to_cpu(resp->params.rdeeprom.bytecount));
 534         if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) {
 535                 pbuf->NOB = 0;
 536                 lbs_deb_cmd("eeprom read return length is too big\n");
 537                 return -1;
 538         }
 539         pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount);
 540         if (pbuf->NOB > 0) {
 541
 542                 memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value,
 543                        le16_to_cpu(resp->params.rdeeprom.bytecount));
 544                 lbs_dbg_hex("adapter", (char *)&pbuf->value,
 545                         le16_to_cpu(resp->params.rdeeprom.bytecount));
 546         }
 547         return 0;
 548 }
 549
 550 static int wlan_ret_get_log(wlan_private * priv,
 551                             struct cmd_ds_command *resp)
 552 {
 553         struct cmd_ds_802_11_get_log *logmessage =
 554             (struct cmd_ds_802_11_get_log *)&resp->params.glog;
 555         wlan_adapter *adapter = priv->adapter;
 556
 557         lbs_deb_enter(LBS_DEB_CMD);
 558
 559         /* TODO Convert it to Big Endian before copy */
 560         memcpy(&adapter->logmsg, logmessage,
 561                sizeof(struct cmd_ds_802_11_get_log));
 562
 563         lbs_deb_enter(LBS_DEB_CMD);
 564         return 0;
 565 }
 566
 567 static inline int handle_cmd_response(u16 respcmd,
 568                                       struct cmd_ds_command *resp,
 569                                       wlan_private *priv)
 570 {
 571         int ret = 0;
 572         unsigned long flags;
 573         wlan_adapter *adapter = priv->adapter;
 574
 575         switch (respcmd) {
 576         case cmd_ret_mac_reg_access:
 577         case cmd_ret_bbp_reg_access:
 578         case cmd_ret_rf_reg_access:
 579                 ret = wlan_ret_reg_access(priv, respcmd, resp);
 580                 break;
 581
 582         case cmd_ret_hw_spec_info:
 583                 ret = wlan_ret_get_hw_spec(priv, resp);
 584                 break;
 585
 586         case cmd_ret_802_11_scan:
 587                 ret = libertas_ret_80211_scan(priv, resp);
 588                 break;
 589
 590         case cmd_ret_802_11_get_log:
 591                 ret = wlan_ret_get_log(priv, resp);
 592                 break;
 593
 594         case cmd_ret_802_11_associate:
 595         case cmd_ret_802_11_reassociate:
 596                 ret = libertas_ret_80211_associate(priv, resp);
 597                 break;
 598
 599         case cmd_ret_802_11_disassociate:
 600         case cmd_ret_802_11_deauthenticate:
 601                 ret = libertas_ret_80211_disassociate(priv, resp);
 602                 break;
 603
 604         case cmd_ret_802_11_ad_hoc_start:
 605         case cmd_ret_802_11_ad_hoc_join:
 606                 ret = libertas_ret_80211_ad_hoc_start(priv, resp);
 607                 break;
 608
 609         case cmd_ret_802_11_stat:
 610                 ret = wlan_ret_802_11_stat(priv, resp);
 611                 break;
 612
 613         case cmd_ret_802_11_snmp_mib:
 614                 ret = wlan_ret_802_11_snmp_mib(priv, resp);
 615                 break;
 616
 617         case cmd_ret_802_11_rf_tx_power:
 618                 ret = wlan_ret_802_11_rf_tx_power(priv, resp);
 619                 break;
 620
 621         case cmd_ret_802_11_set_afc:
 622         case cmd_ret_802_11_get_afc:
 623                 spin_lock_irqsave(&adapter->driver_lock, flags);
 624                 memmove(adapter->cur_cmd->pdata_buf,
 625                         &resp->params.afc,
 626                         sizeof(struct cmd_ds_802_11_afc));
 627                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 628
 629                 break;
 630         case cmd_ret_802_11_rf_antenna:
 631                 ret = wlan_ret_802_11_rf_antenna(priv, resp);
 632                 break;
 633
 634         case cmd_ret_mac_multicast_adr:
 635         case cmd_ret_mac_control:
 636         case cmd_ret_802_11_set_wep:
 637         case cmd_ret_802_11_reset:
 638         case cmd_ret_802_11_authenticate:
 639         case cmd_ret_802_11_radio_control:
 640         case cmd_ret_802_11_beacon_stop:
 641         case cmd_ret_802_11_enable_rsn:
 642                 break;
 643
 644         case cmd_ret_802_11_data_rate:
 645                 ret = wlan_ret_802_11_data_rate(priv, resp);
 646                 break;
 647         case cmd_ret_802_11_rate_adapt_rateset:
 648                 ret = wlan_ret_802_11_rate_adapt_rateset(priv, resp);
 649                 break;
 650         case cmd_ret_802_11_rf_channel:
 651                 ret = wlan_ret_802_11_rf_channel(priv, resp);
 652                 break;
 653
 654         case cmd_ret_802_11_rssi:
 655                 ret = wlan_ret_802_11_rssi(priv, resp);
 656                 break;
 657
 658         case cmd_ret_802_11_mac_address:
 659                 ret = wlan_ret_802_11_mac_address(priv, resp);
 660                 break;
 661
 662         case cmd_ret_802_11_ad_hoc_stop:
 663                 ret = libertas_ret_80211_ad_hoc_stop(priv, resp);
 664                 break;
 665
 666         case cmd_ret_802_11_key_material:
 667                 lbs_deb_cmd("CMD_RESP: KEY_MATERIAL command response\n");
 668                 ret = wlan_ret_802_11_key_material(priv, resp);
 669                 break;
 670
 671         case cmd_ret_802_11_eeprom_access:
 672                 ret = wlan_ret_802_11_eeprom_access(priv, resp);
 673                 break;
 674
 675         case cmd_ret_802_11d_domain_info:
 676                 ret = libertas_ret_802_11d_domain_info(priv, resp);
 677                 break;
 678
 679         case cmd_ret_802_11_sleep_params:
 680                 ret = wlan_ret_802_11_sleep_params(priv, resp);
 681                 break;
 682         case cmd_ret_802_11_inactivity_timeout:
 683                 spin_lock_irqsave(&adapter->driver_lock, flags);
 684                 *((u16 *) adapter->cur_cmd->pdata_buf) =
 685                     le16_to_cpu(resp->params.inactivity_timeout.timeout);
 686                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 687                 break;
 688
 689         case cmd_ret_802_11_tpc_cfg:
 690                 spin_lock_irqsave(&adapter->driver_lock, flags);
 691                 memmove(adapter->cur_cmd->pdata_buf,
 692                         &resp->params.tpccfg,
 693                         sizeof(struct cmd_ds_802_11_tpc_cfg));
 694                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 695                 break;
 696         case cmd_ret_802_11_led_gpio_ctrl:
 697                 spin_lock_irqsave(&adapter->driver_lock, flags);
 698                 memmove(adapter->cur_cmd->pdata_buf,
 699                         &resp->params.ledgpio,
 700                         sizeof(struct cmd_ds_802_11_led_ctrl));
 701                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 702                 break;
 703         case cmd_ret_802_11_pwr_cfg:
 704                 spin_lock_irqsave(&adapter->driver_lock, flags);
 705                 memmove(adapter->cur_cmd->pdata_buf,
 706                         &resp->params.pwrcfg,
 707                         sizeof(struct cmd_ds_802_11_pwr_cfg));
 708                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 709
 710                 break;
 711
 712         case cmd_ret_get_tsf:
 713                 spin_lock_irqsave(&adapter->driver_lock, flags);
 714                 memcpy(priv->adapter->cur_cmd->pdata_buf,
 715                        &resp->params.gettsf.tsfvalue, sizeof(u64));
 716                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 717                 break;
 718         case cmd_ret_bt_access:
 719                 spin_lock_irqsave(&adapter->driver_lock, flags);
 720                 if (adapter->cur_cmd->pdata_buf)
 721                         memcpy(adapter->cur_cmd->pdata_buf,
 722                                &resp->params.bt.addr1, 2 * ETH_ALEN);
 723                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 724                 break;
 725         case cmd_ret_fwt_access:
 726                 spin_lock_irqsave(&adapter->driver_lock, flags);
 727                 if (adapter->cur_cmd->pdata_buf)
 728                         memcpy(adapter->cur_cmd->pdata_buf,
 729                                &resp->params.fwt,
 730                                 sizeof(resp->params.fwt));
 731                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 732                 break;
 733         case cmd_ret_mesh_access:
 734                 if (adapter->cur_cmd->pdata_buf)
 735                         memcpy(adapter->cur_cmd->pdata_buf,
 736                                &resp->params.mesh,
 737                                sizeof(resp->params.mesh));
 738                 break;
 739         case cmd_rte_802_11_tx_rate_query:
 740                 priv->adapter->txrate = resp->params.txrate.txrate;
 741                 break;
 742         default:
 743                 lbs_deb_cmd("CMD_RESP: Unknown command response %#x\n",
 744                        resp->command);
 745                 break;
 746         }
 747         return ret;
 748 }
 749
 750 int libertas_process_rx_command(wlan_private * priv)
 751 {
 752         u16 respcmd;
 753         struct cmd_ds_command *resp;
 754         wlan_adapter *adapter = priv->adapter;
 755         int ret = 0;
 756         ulong flags;
 757         u16 result;
 758
 759         lbs_deb_enter(LBS_DEB_CMD);
 760
 761         lbs_deb_cmd("CMD_RESP: @ %lu\n", jiffies);
 762
 763         /* Now we got response from FW, cancel the command timer */
 764         del_timer(&adapter->command_timer);
 765
 766         mutex_lock(&adapter->lock);
 767         spin_lock_irqsave(&adapter->driver_lock, flags);
 768
 769         if (!adapter->cur_cmd) {
 770                 lbs_deb_cmd("CMD_RESP: NULL cur_cmd=%p\n", adapter->cur_cmd);
 771                 ret = -1;
 772                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 773                 goto done;
 774         }
 775         resp = (struct cmd_ds_command *)(adapter->cur_cmd->bufvirtualaddr);
 776
 777         lbs_dbg_hex("CMD_RESP:", adapter->cur_cmd->bufvirtualaddr,
 778                 priv->wlan_dev.upld_len);
 779
 780         respcmd = le16_to_cpu(resp->command);
 781
 782         result = le16_to_cpu(resp->result);
 783
 784         lbs_deb_cmd("CMD_RESP: %x result: %d length: %d\n", respcmd,
 785                result, priv->wlan_dev.upld_len);
 786
 787         if (!(respcmd & 0x8000)) {
 788                 lbs_deb_cmd("Invalid response to command!");
 789                 adapter->cur_cmd_retcode = -1;
 790                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 791                 adapter->nr_cmd_pending--;
 792                 adapter->cur_cmd = NULL;
 793                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 794                 ret = -1;
 795                 goto done;
 796         }
 797
 798         /* Store the response code to cur_cmd_retcode. */
 799         adapter->cur_cmd_retcode = le16_to_cpu(resp->result);
 800
 801         if (respcmd == cmd_ret_802_11_ps_mode) {
 802                 struct cmd_ds_802_11_ps_mode *psmode;
 803
 804                 psmode = &resp->params.psmode;
 805                 lbs_deb_cmd(
 806                        "CMD_RESP: PS_MODE cmd reply result=%#x action=0x%X\n",
 807                        resp->result, psmode->action);
 808                 psmode->action = cpu_to_le16(psmode->action);
 809
 810                 if (result) {
 811                         lbs_deb_cmd("CMD_RESP: PS command failed- %#x \n",
 812                                resp->result);
 813                         if (adapter->mode == IW_MODE_ADHOC) {
 814                                 /*
 815                                  * We should not re-try enter-ps command in
 816                                  * ad-hoc mode. It takes place in
 817                                  * libertas_execute_next_command().
 818                                  */
 819                                 if (psmode->action == cmd_subcmd_enter_ps)
 820                                         adapter->psmode =
 821                                             wlan802_11powermodecam;
 822                         }
 823                 } else if (psmode->action == cmd_subcmd_enter_ps) {
 824                         adapter->needtowakeup = 0;
 825                         adapter->psstate = PS_STATE_AWAKE;
 826
 827                         lbs_deb_cmd("CMD_RESP: Enter_PS command response\n");
 828                         if (adapter->connect_status != libertas_connected) {
 829                                 /*
 830                                  * When Deauth Event received before Enter_PS command
 831                                  * response, We need to wake up the firmware.
 832                                  */
 833                                 lbs_deb_cmd(
 834                                        "Disconnected, Going to invoke libertas_ps_wakeup\n");
 835
 836                                 mutex_unlock(&adapter->lock);
 837                                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 838                                 libertas_ps_wakeup(priv, 0);
 839                                 mutex_lock(&adapter->lock);
 840                                 spin_lock_irqsave(&adapter->driver_lock, flags);
 841                         }
 842                 } else if (psmode->action == cmd_subcmd_exit_ps) {
 843                         adapter->needtowakeup = 0;
 844                         adapter->psstate = PS_STATE_FULL_POWER;
 845                         lbs_deb_cmd("CMD_RESP: Exit_PS command response\n");
 846                 } else {
 847                         lbs_deb_cmd("CMD_RESP: PS- action=0x%X\n",
 848                                psmode->action);
 849                 }
 850
 851                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 852                 adapter->nr_cmd_pending--;
 853                 adapter->cur_cmd = NULL;
 854                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 855
 856                 ret = 0;
 857                 goto done;
 858         }
 859
 860         if (adapter->cur_cmd->cmdflags & CMD_F_HOSTCMD) {
 861                 /* Copy the response back to response buffer */
 862                 memcpy(adapter->cur_cmd->pdata_buf, resp, resp->size);
 863
 864                 adapter->cur_cmd->cmdflags &= ~CMD_F_HOSTCMD;
 865         }
 866
 867         /* If the command is not successful, cleanup and return failure */
 868         if ((result != 0 || !(respcmd & 0x8000))) {
 869                 lbs_deb_cmd("CMD_RESP: command reply %#x result=%#x\n",
 870                        resp->command, resp->result);
 871                 /*
 872                  * Handling errors here
 873                  */
 874                 switch (respcmd) {
 875                 case cmd_ret_hw_spec_info:
 876                 case cmd_ret_802_11_reset:
 877                         lbs_deb_cmd("CMD_RESP: Reset command failed\n");
 878                         break;
 879
 880                 }
 881
 882                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 883                 adapter->nr_cmd_pending--;
 884                 adapter->cur_cmd = NULL;
 885                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 886
 887                 ret = -1;
 888                 goto done;
 889         }
 890
 891         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 892
 893         ret = handle_cmd_response(respcmd, resp, priv);
 894
 895         spin_lock_irqsave(&adapter->driver_lock, flags);
 896         if (adapter->cur_cmd) {
 897                 /* Clean up and Put current command back to cmdfreeq */
 898                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 899                 adapter->nr_cmd_pending--;
 900                 WARN_ON(adapter->nr_cmd_pending > 128);
 901                 adapter->cur_cmd = NULL;
 902         }
 903         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 904
 905 done:
 906         mutex_unlock(&adapter->lock);
 907         lbs_deb_enter_args(LBS_DEB_CMD, "ret %d", ret);
 908         return ret;
 909 }
 910
 911 int libertas_process_event(wlan_private * priv)
 912 {
 913         int ret = 0;
 914         wlan_adapter *adapter = priv->adapter;
 915         u32 eventcause;
 916
 917         spin_lock_irq(&adapter->driver_lock);
 918         eventcause = adapter->eventcause;
 919         spin_unlock_irq(&adapter->driver_lock);
 920
 921         lbs_deb_enter(LBS_DEB_CMD);
 922
 923         lbs_deb_cmd("EVENT Cause %x\n", eventcause);
 924
 925         switch (eventcause >> SBI_EVENT_CAUSE_SHIFT) {
 926         case MACREG_INT_CODE_LINK_SENSED:
 927                 lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n");
 928                 break;
 929
 930         case MACREG_INT_CODE_DEAUTHENTICATED:
 931                 lbs_deb_cmd("EVENT: Deauthenticated\n");
 932                 libertas_mac_event_disconnected(priv);
 933                 break;
 934
 935         case MACREG_INT_CODE_DISASSOCIATED:
 936                 lbs_deb_cmd("EVENT: Disassociated\n");
 937                 libertas_mac_event_disconnected(priv);
 938                 break;
 939
 940         case MACREG_INT_CODE_LINK_LOSE_NO_SCAN:
 941                 lbs_deb_cmd("EVENT: Link lost\n");
 942                 libertas_mac_event_disconnected(priv);
 943                 break;
 944
 945         case MACREG_INT_CODE_PS_SLEEP:
 946                 lbs_deb_cmd("EVENT: SLEEP\n");
 947                 lbs_deb_cmd("_");
 948
 949                 /* handle unexpected PS SLEEP event */
 950                 if (adapter->psstate == PS_STATE_FULL_POWER) {
 951                         lbs_deb_cmd(
 952                                "EVENT: In FULL POWER mode - ignore PS SLEEP\n");
 953                         break;
 954                 }
 955                 adapter->psstate = PS_STATE_PRE_SLEEP;
 956
 957                 libertas_ps_confirm_sleep(priv, (u16) adapter->psmode);
 958
 959                 break;
 960
 961         case MACREG_INT_CODE_PS_AWAKE:
 962                 lbs_deb_cmd("EVENT: AWAKE \n");
 963                 lbs_deb_cmd("|");
 964
 965                 /* handle unexpected PS AWAKE event */
 966                 if (adapter->psstate == PS_STATE_FULL_POWER) {
 967                         lbs_deb_cmd(
 968                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
 969                         break;
 970                 }
 971
 972                 adapter->psstate = PS_STATE_AWAKE;
 973
 974                 if (adapter->needtowakeup) {
 975                         /*
 976                          * wait for the command processing to finish
 977                          * before resuming sending
 978                          * adapter->needtowakeup will be set to FALSE
 979                          * in libertas_ps_wakeup()
 980                          */
 981                         lbs_deb_cmd("Waking up...\n");
 982                         libertas_ps_wakeup(priv, 0);
 983                 }
 984                 break;
 985
 986         case MACREG_INT_CODE_MIC_ERR_UNICAST:
 987                 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
 988                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
 989                 break;
 990
 991         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
 992                 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
 993                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 994                 break;
 995         case MACREG_INT_CODE_MIB_CHANGED:
 996         case MACREG_INT_CODE_INIT_DONE:
 997                 break;
 998
 999         case MACREG_INT_CODE_ADHOC_BCN_LOST:
1000                 lbs_deb_cmd("EVENT: HWAC - ADHOC BCN LOST\n");
1001                 break;
1002
1003         case MACREG_INT_CODE_RSSI_LOW:
1004                 lbs_pr_alert( "EVENT: RSSI_LOW\n");
1005                 break;
1006         case MACREG_INT_CODE_SNR_LOW:
1007                 lbs_pr_alert( "EVENT: SNR_LOW\n");
1008                 break;
1009         case MACREG_INT_CODE_MAX_FAIL:
1010                 lbs_pr_alert( "EVENT: MAX_FAIL\n");
1011                 break;
1012         case MACREG_INT_CODE_RSSI_HIGH:
1013                 lbs_pr_alert( "EVENT: RSSI_HIGH\n");
1014                 break;
1015         case MACREG_INT_CODE_SNR_HIGH:
1016                 lbs_pr_alert( "EVENT: SNR_HIGH\n");
1017                 break;
1018
1019         default:
1020                 lbs_pr_alert( "EVENT: unknown event id: %#x\n",
1021                        eventcause >> SBI_EVENT_CAUSE_SHIFT);
1022                 break;
1023         }
1024
1025         spin_lock_irq(&adapter->driver_lock);
1026         adapter->eventcause = 0;
1027         spin_unlock_irq(&adapter->driver_lock);
1028
1029         lbs_deb_enter_args(LBS_DEB_CMD, "ret %d", ret);
1030         return ret;
1031 }