drivers/net/wireless/libertas/cmdresp.c

   1 /**
   2   * This file contains the handling of command
   3   * responses as well as events generated by firmware.
   4   */
   5 #include <linux/delay.h>
   6 #include <linux/if_arp.h>
   7 #include <linux/netdevice.h>
   8
   9 #include <net/iw_handler.h>
  10
  11 #include "host.h"
  12 #include "decl.h"
  13 #include "defs.h"
  14 #include "dev.h"
  15 #include "join.h"
  16 #include "wext.h"
  17
  18 /**
  19  *  @brief This function handles disconnect event. it
  20  *  reports disconnect to upper layer, clean tx/rx packets,
  21  *  reset link state etc.
  22  *
  23  *  @param priv    A pointer to wlan_private structure
  24  *  @return        n/a
  25  */
  26 void libertas_mac_event_disconnected(wlan_private * priv)
  27 {
  28         wlan_adapter *adapter = priv->adapter;
  29         union iwreq_data wrqu;
  30
  31         if (adapter->connect_status != LIBERTAS_CONNECTED)
  32                 return;
  33
  34         lbs_deb_enter(LBS_DEB_CMD);
  35
  36         memset(wrqu.ap_addr.sa_data, 0x00, ETH_ALEN);
  37         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
  38
  39         /*
  40          * Cisco AP sends EAP failure and de-auth in less than 0.5 ms.
  41          * It causes problem in the Supplicant
  42          */
  43
  44         msleep_interruptible(1000);
  45         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
  46
  47         /* Free Tx and Rx packets */
  48         kfree_skb(priv->adapter->currenttxskb);
  49         priv->adapter->currenttxskb = NULL;
  50
  51         /* report disconnect to upper layer */
  52         netif_stop_queue(priv->dev);
  53         netif_carrier_off(priv->dev);
  54
  55         /* reset SNR/NF/RSSI values */
  56         memset(adapter->SNR, 0x00, sizeof(adapter->SNR));
  57         memset(adapter->NF, 0x00, sizeof(adapter->NF));
  58         memset(adapter->RSSI, 0x00, sizeof(adapter->RSSI));
  59         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
  60         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
  61         adapter->nextSNRNF = 0;
  62         adapter->numSNRNF = 0;
  63         lbs_deb_cmd("current SSID '%s', length %u\n",
  64                     escape_essid(adapter->curbssparams.ssid,
  65                                  adapter->curbssparams.ssid_len),
  66                     adapter->curbssparams.ssid_len);
  67
  68         adapter->connect_status = LIBERTAS_DISCONNECTED;
  69
  70         /* Clear out associated SSID and BSSID since connection is
  71          * no longer valid.
  72          */
  73         memset(&adapter->curbssparams.bssid, 0, ETH_ALEN);
  74         memset(&adapter->curbssparams.ssid, 0, IW_ESSID_MAX_SIZE);
  75         adapter->curbssparams.ssid_len = 0;
  76
  77         if (adapter->psstate != PS_STATE_FULL_POWER) {
  78                 /* make firmware to exit PS mode */
  79                 lbs_deb_cmd("disconnected, so exit PS mode\n");
  80                 libertas_ps_wakeup(priv, 0);
  81         }
  82         lbs_deb_leave(LBS_DEB_CMD);
  83 }
  84
  85 /**
  86  *  @brief This function handles MIC failure event.
  87  *
  88  *  @param priv    A pointer to wlan_private structure
  89  *  @para  event   the event id
  90  *  @return        n/a
  91  */
  92 static void handle_mic_failureevent(wlan_private * priv, u32 event)
  93 {
  94         char buf[50];
  95
  96         lbs_deb_enter(LBS_DEB_CMD);
  97         memset(buf, 0, sizeof(buf));
  98
  99         sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
 100
 101         if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) {
 102                 strcat(buf, "unicast ");
 103         } else {
 104                 strcat(buf, "multicast ");
 105         }
 106
 107         libertas_send_iwevcustom_event(priv, buf);
 108         lbs_deb_leave(LBS_DEB_CMD);
 109 }
 110
 111 static int wlan_ret_reg_access(wlan_private * priv,
 112                                u16 type, struct cmd_ds_command *resp)
 113 {
 114         int ret = 0;
 115         wlan_adapter *adapter = priv->adapter;
 116
 117         lbs_deb_enter(LBS_DEB_CMD);
 118
 119         switch (type) {
 120         case CMD_RET(CMD_MAC_REG_ACCESS):
 121                 {
 122                         struct cmd_ds_mac_reg_access *reg = &resp->params.macreg;
 123
 124                         adapter->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 125                         adapter->offsetvalue.value = le32_to_cpu(reg->value);
 126                         break;
 127                 }
 128
 129         case CMD_RET(CMD_BBP_REG_ACCESS):
 130                 {
 131                         struct cmd_ds_bbp_reg_access *reg = &resp->params.bbpreg;
 132
 133                         adapter->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 134                         adapter->offsetvalue.value = reg->value;
 135                         break;
 136                 }
 137
 138         case CMD_RET(CMD_RF_REG_ACCESS):
 139                 {
 140                         struct cmd_ds_rf_reg_access *reg = &resp->params.rfreg;
 141
 142                         adapter->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 143                         adapter->offsetvalue.value = reg->value;
 144                         break;
 145                 }
 146
 147         default:
 148                 ret = -1;
 149         }
 150
 151         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 152         return ret;
 153 }
 154
 155 static int wlan_ret_get_hw_spec(wlan_private * priv,
 156                                 struct cmd_ds_command *resp)
 157 {
 158         u32 i;
 159         struct cmd_ds_get_hw_spec *hwspec = &resp->params.hwspec;
 160         wlan_adapter *adapter = priv->adapter;
 161         int ret = 0;
 162         DECLARE_MAC_BUF(mac);
 163
 164         lbs_deb_enter(LBS_DEB_CMD);
 165
 166         adapter->fwcapinfo = le32_to_cpu(hwspec->fwcapinfo);
 167
 168         memcpy(adapter->fwreleasenumber, hwspec->fwreleasenumber, 4);
 169
 170         lbs_deb_cmd("GET_HW_SPEC: firmware release %u.%u.%up%u\n",
 171                     adapter->fwreleasenumber[2], adapter->fwreleasenumber[1],
 172                     adapter->fwreleasenumber[0], adapter->fwreleasenumber[3]);
 173         lbs_deb_cmd("GET_HW_SPEC: MAC addr %s\n",
 174                     print_mac(mac, hwspec->permanentaddr));
 175         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
 176                hwspec->hwifversion, hwspec->version);
 177
 178         /* Clamp region code to 8-bit since FW spec indicates that it should
 179          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
 180          * returns non-zero high 8 bits here.
 181          */
 182         adapter->regioncode = le16_to_cpu(hwspec->regioncode) & 0xFF;
 183
 184         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 185                 /* use the region code to search for the index */
 186                 if (adapter->regioncode == libertas_region_code_to_index[i]) {
 187                         break;
 188                 }
 189         }
 190
 191         /* if it's unidentified region code, use the default (USA) */
 192         if (i >= MRVDRV_MAX_REGION_CODE) {
 193                 adapter->regioncode = 0x10;
 194                 lbs_pr_info("unidentified region code; using the default (USA)\n");
 195         }
 196
 197         if (adapter->current_addr[0] == 0xff)
 198                 memmove(adapter->current_addr, hwspec->permanentaddr, ETH_ALEN);
 199
 200         memcpy(priv->dev->dev_addr, adapter->current_addr, ETH_ALEN);
 201         if (priv->mesh_dev)
 202                 memcpy(priv->mesh_dev->dev_addr, adapter->current_addr, ETH_ALEN);
 203
 204         if (libertas_set_regiontable(priv, adapter->regioncode, 0)) {
 205                 ret = -1;
 206                 goto done;
 207         }
 208
 209         if (libertas_set_universaltable(priv, 0)) {
 210                 ret = -1;
 211                 goto done;
 212         }
 213
 214 done:
 215         lbs_deb_enter_args(LBS_DEB_CMD, "ret %d", ret);
 216         return ret;
 217 }
 218
 219 static int wlan_ret_802_11_sleep_params(wlan_private * priv,
 220                                         struct cmd_ds_command *resp)
 221 {
 222         struct cmd_ds_802_11_sleep_params *sp = &resp->params.sleep_params;
 223         wlan_adapter *adapter = priv->adapter;
 224
 225         lbs_deb_enter(LBS_DEB_CMD);
 226
 227         lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, calcontrol 0x%x "
 228                     "extsleepclk 0x%x\n", le16_to_cpu(sp->error),
 229                     le16_to_cpu(sp->offset), le16_to_cpu(sp->stabletime),
 230                     sp->calcontrol, sp->externalsleepclk);
 231
 232         adapter->sp.sp_error = le16_to_cpu(sp->error);
 233         adapter->sp.sp_offset = le16_to_cpu(sp->offset);
 234         adapter->sp.sp_stabletime = le16_to_cpu(sp->stabletime);
 235         adapter->sp.sp_calcontrol = sp->calcontrol;
 236         adapter->sp.sp_extsleepclk = sp->externalsleepclk;
 237         adapter->sp.sp_reserved = le16_to_cpu(sp->reserved);
 238
 239         lbs_deb_enter(LBS_DEB_CMD);
 240         return 0;
 241 }
 242
 243 static int wlan_ret_802_11_stat(wlan_private * priv,
 244                                 struct cmd_ds_command *resp)
 245 {
 246         lbs_deb_enter(LBS_DEB_CMD);
 247 /*      currently adapter->wlan802_11Stat is unused
 248
 249         struct cmd_ds_802_11_get_stat *p11Stat = &resp->params.gstat;
 250         wlan_adapter *adapter = priv->adapter;
 251
 252         // TODO Convert it to Big endian befor copy
 253         memcpy(&adapter->wlan802_11Stat,
 254                p11Stat, sizeof(struct cmd_ds_802_11_get_stat));
 255 */
 256         lbs_deb_leave(LBS_DEB_CMD);
 257         return 0;
 258 }
 259
 260 static int wlan_ret_802_11_snmp_mib(wlan_private * priv,
 261                                     struct cmd_ds_command *resp)
 262 {
 263         struct cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
 264         u16 oid = le16_to_cpu(smib->oid);
 265         u16 querytype = le16_to_cpu(smib->querytype);
 266
 267         lbs_deb_enter(LBS_DEB_CMD);
 268
 269         lbs_deb_cmd("SNMP_RESP: oid 0x%x, querytype 0x%x\n", oid,
 270                querytype);
 271         lbs_deb_cmd("SNMP_RESP: Buf size %d\n", le16_to_cpu(smib->bufsize));
 272
 273         if (querytype == CMD_ACT_GET) {
 274                 switch (oid) {
 275                 case FRAGTHRESH_I:
 276                         priv->adapter->fragthsd =
 277                                 le16_to_cpu(*((__le16 *)(smib->value)));
 278                         lbs_deb_cmd("SNMP_RESP: frag threshold %u\n",
 279                                     priv->adapter->fragthsd);
 280                         break;
 281                 case RTSTHRESH_I:
 282                         priv->adapter->rtsthsd =
 283                                 le16_to_cpu(*((__le16 *)(smib->value)));
 284                         lbs_deb_cmd("SNMP_RESP: rts threshold %u\n",
 285                                     priv->adapter->rtsthsd);
 286                         break;
 287                 case SHORT_RETRYLIM_I:
 288                         priv->adapter->txretrycount =
 289                                 le16_to_cpu(*((__le16 *)(smib->value)));
 290                         lbs_deb_cmd("SNMP_RESP: tx retry count %u\n",
 291                                     priv->adapter->rtsthsd);
 292                         break;
 293                 default:
 294                         break;
 295                 }
 296         }
 297
 298         lbs_deb_enter(LBS_DEB_CMD);
 299         return 0;
 300 }
 301
 302 static int wlan_ret_802_11_key_material(wlan_private * priv,
 303                                         struct cmd_ds_command *resp)
 304 {
 305         struct cmd_ds_802_11_key_material *pkeymaterial =
 306             &resp->params.keymaterial;
 307         wlan_adapter *adapter = priv->adapter;
 308         u16 action = le16_to_cpu(pkeymaterial->action);
 309
 310         lbs_deb_enter(LBS_DEB_CMD);
 311
 312         /* Copy the returned key to driver private data */
 313         if (action == CMD_ACT_GET) {
 314                 u8 * buf_ptr = (u8 *) &pkeymaterial->keyParamSet;
 315                 u8 * resp_end = (u8 *) (resp + le16_to_cpu(resp->size));
 316
 317                 while (buf_ptr < resp_end) {
 318                         struct MrvlIEtype_keyParamSet * pkeyparamset =
 319                             (struct MrvlIEtype_keyParamSet *) buf_ptr;
 320                         struct enc_key * pkey;
 321                         u16 param_set_len = le16_to_cpu(pkeyparamset->length);
 322                         u16 key_len = le16_to_cpu(pkeyparamset->keylen);
 323                         u16 key_flags = le16_to_cpu(pkeyparamset->keyinfo);
 324                         u16 key_type = le16_to_cpu(pkeyparamset->keytypeid);
 325                         u8 * end;
 326
 327                         end = (u8 *) pkeyparamset + sizeof (pkeyparamset->type)
 328                                                   + sizeof (pkeyparamset->length)
 329                                                   + param_set_len;
 330                         /* Make sure we don't access past the end of the IEs */
 331                         if (end > resp_end)
 332                                 break;
 333
 334                         if (key_flags & KEY_INFO_WPA_UNICAST)
 335                                 pkey = &adapter->wpa_unicast_key;
 336                         else if (key_flags & KEY_INFO_WPA_MCAST)
 337                                 pkey = &adapter->wpa_mcast_key;
 338                         else
 339                                 break;
 340
 341                         /* Copy returned key into driver */
 342                         memset(pkey, 0, sizeof(struct enc_key));
 343                         if (key_len > sizeof(pkey->key))
 344                                 break;
 345                         pkey->type = key_type;
 346                         pkey->flags = key_flags;
 347                         pkey->len = key_len;
 348                         memcpy(pkey->key, pkeyparamset->key, pkey->len);
 349
 350                         buf_ptr = end + 1;
 351                 }
 352         }
 353
 354         lbs_deb_enter(LBS_DEB_CMD);
 355         return 0;
 356 }
 357
 358 static int wlan_ret_802_11_mac_address(wlan_private * priv,
 359                                        struct cmd_ds_command *resp)
 360 {
 361         struct cmd_ds_802_11_mac_address *macadd = &resp->params.macadd;
 362         wlan_adapter *adapter = priv->adapter;
 363
 364         lbs_deb_enter(LBS_DEB_CMD);
 365
 366         memcpy(adapter->current_addr, macadd->macadd, ETH_ALEN);
 367
 368         lbs_deb_enter(LBS_DEB_CMD);
 369         return 0;
 370 }
 371
 372 static int wlan_ret_802_11_rf_tx_power(wlan_private * priv,
 373                                        struct cmd_ds_command *resp)
 374 {
 375         struct cmd_ds_802_11_rf_tx_power *rtp = &resp->params.txp;
 376         wlan_adapter *adapter = priv->adapter;
 377
 378         lbs_deb_enter(LBS_DEB_CMD);
 379
 380         adapter->txpowerlevel = le16_to_cpu(rtp->currentlevel);
 381
 382         lbs_deb_cmd("TX power currently %d\n", adapter->txpowerlevel);
 383
 384         lbs_deb_leave(LBS_DEB_CMD);
 385         return 0;
 386 }
 387
 388 static int wlan_ret_802_11_rate_adapt_rateset(wlan_private * priv,
 389                                               struct cmd_ds_command *resp)
 390 {
 391         struct cmd_ds_802_11_rate_adapt_rateset *rates = &resp->params.rateset;
 392         wlan_adapter *adapter = priv->adapter;
 393
 394         lbs_deb_enter(LBS_DEB_CMD);
 395
 396         if (rates->action == CMD_ACT_GET) {
 397                 adapter->enablehwauto = le16_to_cpu(rates->enablehwauto);
 398                 adapter->ratebitmap = le16_to_cpu(rates->bitmap);
 399         }
 400
 401         lbs_deb_leave(LBS_DEB_CMD);
 402         return 0;
 403 }
 404
 405 static int wlan_ret_802_11_data_rate(wlan_private * priv,
 406                                      struct cmd_ds_command *resp)
 407 {
 408         struct cmd_ds_802_11_data_rate *pdatarate = &resp->params.drate;
 409         wlan_adapter *adapter = priv->adapter;
 410
 411         lbs_deb_enter(LBS_DEB_CMD);
 412
 413         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) pdatarate,
 414                 sizeof(struct cmd_ds_802_11_data_rate));
 415
 416         /* FIXME: get actual rates FW can do if this command actually returns
 417          * all data rates supported.
 418          */
 419         adapter->cur_rate = libertas_fw_index_to_data_rate(pdatarate->rates[0]);
 420         lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", adapter->cur_rate);
 421
 422         lbs_deb_leave(LBS_DEB_CMD);
 423         return 0;
 424 }
 425
 426 static int wlan_ret_802_11_rf_channel(wlan_private * priv,
 427                                       struct cmd_ds_command *resp)
 428 {
 429         struct cmd_ds_802_11_rf_channel *rfchannel = &resp->params.rfchannel;
 430         wlan_adapter *adapter = priv->adapter;
 431         u16 action = le16_to_cpu(rfchannel->action);
 432         u16 newchannel = le16_to_cpu(rfchannel->currentchannel);
 433
 434         lbs_deb_enter(LBS_DEB_CMD);
 435
 436         if (action == CMD_OPT_802_11_RF_CHANNEL_GET
 437             && adapter->curbssparams.channel != newchannel) {
 438                 lbs_deb_cmd("channel switch from %d to %d\n",
 439                        adapter->curbssparams.channel, newchannel);
 440
 441                 /* Update the channel again */
 442                 adapter->curbssparams.channel = newchannel;
 443         }
 444
 445         lbs_deb_enter(LBS_DEB_CMD);
 446         return 0;
 447 }
 448
 449 static int wlan_ret_802_11_rssi(wlan_private * priv,
 450                                 struct cmd_ds_command *resp)
 451 {
 452         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
 453         wlan_adapter *adapter = priv->adapter;
 454
 455         lbs_deb_enter(LBS_DEB_CMD);
 456
 457         /* store the non average value */
 458         adapter->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
 459         adapter->NF[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->noisefloor);
 460
 461         adapter->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
 462         adapter->NF[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgnoisefloor);
 463
 464         adapter->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 465             CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_NOAVG],
 466                      adapter->NF[TYPE_BEACON][TYPE_NOAVG]);
 467
 468         adapter->RSSI[TYPE_BEACON][TYPE_AVG] =
 469             CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
 470                      adapter->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
 471
 472         lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
 473                adapter->RSSI[TYPE_BEACON][TYPE_NOAVG],
 474                adapter->RSSI[TYPE_BEACON][TYPE_AVG]);
 475
 476         lbs_deb_leave(LBS_DEB_CMD);
 477         return 0;
 478 }
 479
 480 static int wlan_ret_802_11_eeprom_access(wlan_private * priv,
 481                                   struct cmd_ds_command *resp)
 482 {
 483         wlan_adapter *adapter = priv->adapter;
 484         struct wlan_ioctl_regrdwr *pbuf;
 485         pbuf = (struct wlan_ioctl_regrdwr *) adapter->prdeeprom;
 486
 487         lbs_deb_enter_args(LBS_DEB_CMD, "len %d",
 488                le16_to_cpu(resp->params.rdeeprom.bytecount));
 489         if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) {
 490                 pbuf->NOB = 0;
 491                 lbs_deb_cmd("EEPROM read length too big\n");
 492                 return -1;
 493         }
 494         pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount);
 495         if (pbuf->NOB > 0) {
 496
 497                 memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value,
 498                        le16_to_cpu(resp->params.rdeeprom.bytecount));
 499                 lbs_deb_hex(LBS_DEB_CMD, "EEPROM", (char *)&pbuf->value,
 500                         le16_to_cpu(resp->params.rdeeprom.bytecount));
 501         }
 502         lbs_deb_leave(LBS_DEB_CMD);
 503         return 0;
 504 }
 505
 506 static int wlan_ret_get_log(wlan_private * priv,
 507                             struct cmd_ds_command *resp)
 508 {
 509         struct cmd_ds_802_11_get_log *logmessage = &resp->params.glog;
 510         wlan_adapter *adapter = priv->adapter;
 511
 512         lbs_deb_enter(LBS_DEB_CMD);
 513
 514         /* Stored little-endian */
 515         memcpy(&adapter->logmsg, logmessage, sizeof(struct cmd_ds_802_11_get_log));
 516
 517         lbs_deb_leave(LBS_DEB_CMD);
 518         return 0;
 519 }
 520
 521 static int libertas_ret_802_11_enable_rsn(wlan_private * priv,
 522                                           struct cmd_ds_command *resp)
 523 {
 524         struct cmd_ds_802_11_enable_rsn *enable_rsn = &resp->params.enbrsn;
 525         wlan_adapter *adapter = priv->adapter;
 526         u32 * pdata_buf = adapter->cur_cmd->pdata_buf;
 527
 528         lbs_deb_enter(LBS_DEB_CMD);
 529
 530         if (enable_rsn->action == cpu_to_le16(CMD_ACT_GET)) {
 531                 if (pdata_buf)
 532                         *pdata_buf = (u32) le16_to_cpu(enable_rsn->enable);
 533         }
 534
 535         lbs_deb_leave(LBS_DEB_CMD);
 536         return 0;
 537 }
 538
 539 static inline int handle_cmd_response(u16 respcmd,
 540                                       struct cmd_ds_command *resp,
 541                                       wlan_private *priv)
 542 {
 543         int ret = 0;
 544         unsigned long flags;
 545         wlan_adapter *adapter = priv->adapter;
 546
 547         lbs_deb_enter(LBS_DEB_HOST);
 548
 549         switch (respcmd) {
 550         case CMD_RET(CMD_MAC_REG_ACCESS):
 551         case CMD_RET(CMD_BBP_REG_ACCESS):
 552         case CMD_RET(CMD_RF_REG_ACCESS):
 553                 ret = wlan_ret_reg_access(priv, respcmd, resp);
 554                 break;
 555
 556         case CMD_RET(CMD_GET_HW_SPEC):
 557                 ret = wlan_ret_get_hw_spec(priv, resp);
 558                 break;
 559
 560         case CMD_RET(CMD_802_11_SCAN):
 561                 ret = libertas_ret_80211_scan(priv, resp);
 562                 break;
 563
 564         case CMD_RET(CMD_802_11_GET_LOG):
 565                 ret = wlan_ret_get_log(priv, resp);
 566                 break;
 567
 568         case CMD_RET_802_11_ASSOCIATE:
 569         case CMD_RET(CMD_802_11_ASSOCIATE):
 570         case CMD_RET(CMD_802_11_REASSOCIATE):
 571                 ret = libertas_ret_80211_associate(priv, resp);
 572                 break;
 573
 574         case CMD_RET(CMD_802_11_DISASSOCIATE):
 575         case CMD_RET(CMD_802_11_DEAUTHENTICATE):
 576                 ret = libertas_ret_80211_disassociate(priv, resp);
 577                 break;
 578
 579         case CMD_RET(CMD_802_11_AD_HOC_START):
 580         case CMD_RET(CMD_802_11_AD_HOC_JOIN):
 581                 ret = libertas_ret_80211_ad_hoc_start(priv, resp);
 582                 break;
 583
 584         case CMD_RET(CMD_802_11_GET_STAT):
 585                 ret = wlan_ret_802_11_stat(priv, resp);
 586                 break;
 587
 588         case CMD_RET(CMD_802_11_SNMP_MIB):
 589                 ret = wlan_ret_802_11_snmp_mib(priv, resp);
 590                 break;
 591
 592         case CMD_RET(CMD_802_11_RF_TX_POWER):
 593                 ret = wlan_ret_802_11_rf_tx_power(priv, resp);
 594                 break;
 595
 596         case CMD_RET(CMD_802_11_SET_AFC):
 597         case CMD_RET(CMD_802_11_GET_AFC):
 598                 spin_lock_irqsave(&adapter->driver_lock, flags);
 599                 memmove(adapter->cur_cmd->pdata_buf, &resp->params.afc,
 600                         sizeof(struct cmd_ds_802_11_afc));
 601                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 602
 603                 break;
 604
 605         case CMD_RET(CMD_MAC_MULTICAST_ADR):
 606         case CMD_RET(CMD_MAC_CONTROL):
 607         case CMD_RET(CMD_802_11_SET_WEP):
 608         case CMD_RET(CMD_802_11_RESET):
 609         case CMD_RET(CMD_802_11_AUTHENTICATE):
 610         case CMD_RET(CMD_802_11_RADIO_CONTROL):
 611         case CMD_RET(CMD_802_11_BEACON_STOP):
 612                 break;
 613
 614         case CMD_RET(CMD_802_11_ENABLE_RSN):
 615                 ret = libertas_ret_802_11_enable_rsn(priv, resp);
 616                 break;
 617
 618         case CMD_RET(CMD_802_11_DATA_RATE):
 619                 ret = wlan_ret_802_11_data_rate(priv, resp);
 620                 break;
 621         case CMD_RET(CMD_802_11_RATE_ADAPT_RATESET):
 622                 ret = wlan_ret_802_11_rate_adapt_rateset(priv, resp);
 623                 break;
 624         case CMD_RET(CMD_802_11_RF_CHANNEL):
 625                 ret = wlan_ret_802_11_rf_channel(priv, resp);
 626                 break;
 627
 628         case CMD_RET(CMD_802_11_RSSI):
 629                 ret = wlan_ret_802_11_rssi(priv, resp);
 630                 break;
 631
 632         case CMD_RET(CMD_802_11_MAC_ADDRESS):
 633                 ret = wlan_ret_802_11_mac_address(priv, resp);
 634                 break;
 635
 636         case CMD_RET(CMD_802_11_AD_HOC_STOP):
 637                 ret = libertas_ret_80211_ad_hoc_stop(priv, resp);
 638                 break;
 639
 640         case CMD_RET(CMD_802_11_KEY_MATERIAL):
 641                 ret = wlan_ret_802_11_key_material(priv, resp);
 642                 break;
 643
 644         case CMD_RET(CMD_802_11_EEPROM_ACCESS):
 645                 ret = wlan_ret_802_11_eeprom_access(priv, resp);
 646                 break;
 647
 648         case CMD_RET(CMD_802_11D_DOMAIN_INFO):
 649                 ret = libertas_ret_802_11d_domain_info(priv, resp);
 650                 break;
 651
 652         case CMD_RET(CMD_802_11_SLEEP_PARAMS):
 653                 ret = wlan_ret_802_11_sleep_params(priv, resp);
 654                 break;
 655         case CMD_RET(CMD_802_11_INACTIVITY_TIMEOUT):
 656                 spin_lock_irqsave(&adapter->driver_lock, flags);
 657                 *((u16 *) adapter->cur_cmd->pdata_buf) =
 658                     le16_to_cpu(resp->params.inactivity_timeout.timeout);
 659                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 660                 break;
 661
 662         case CMD_RET(CMD_802_11_TPC_CFG):
 663                 spin_lock_irqsave(&adapter->driver_lock, flags);
 664                 memmove(adapter->cur_cmd->pdata_buf, &resp->params.tpccfg,
 665                         sizeof(struct cmd_ds_802_11_tpc_cfg));
 666                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 667                 break;
 668         case CMD_RET(CMD_802_11_LED_GPIO_CTRL):
 669                 spin_lock_irqsave(&adapter->driver_lock, flags);
 670                 memmove(adapter->cur_cmd->pdata_buf, &resp->params.ledgpio,
 671                         sizeof(struct cmd_ds_802_11_led_ctrl));
 672                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 673                 break;
 674         case CMD_RET(CMD_802_11_PWR_CFG):
 675                 spin_lock_irqsave(&adapter->driver_lock, flags);
 676                 memmove(adapter->cur_cmd->pdata_buf, &resp->params.pwrcfg,
 677                         sizeof(struct cmd_ds_802_11_pwr_cfg));
 678                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 679
 680                 break;
 681
 682         case CMD_RET(CMD_GET_TSF):
 683                 spin_lock_irqsave(&adapter->driver_lock, flags);
 684                 memcpy(priv->adapter->cur_cmd->pdata_buf,
 685                        &resp->params.gettsf.tsfvalue, sizeof(u64));
 686                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 687                 break;
 688         case CMD_RET(CMD_BT_ACCESS):
 689                 spin_lock_irqsave(&adapter->driver_lock, flags);
 690                 if (adapter->cur_cmd->pdata_buf)
 691                         memcpy(adapter->cur_cmd->pdata_buf,
 692                                &resp->params.bt.addr1, 2 * ETH_ALEN);
 693                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 694                 break;
 695         case CMD_RET(CMD_FWT_ACCESS):
 696                 spin_lock_irqsave(&adapter->driver_lock, flags);
 697                 if (adapter->cur_cmd->pdata_buf)
 698                         memcpy(adapter->cur_cmd->pdata_buf, &resp->params.fwt,
 699                                sizeof(resp->params.fwt));
 700                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 701                 break;
 702         case CMD_RET(CMD_MESH_ACCESS):
 703                 if (adapter->cur_cmd->pdata_buf)
 704                         memcpy(adapter->cur_cmd->pdata_buf, &resp->params.mesh,
 705                                sizeof(resp->params.mesh));
 706                 break;
 707         default:
 708                 lbs_deb_host("CMD_RESP: unknown cmd response 0x%04x\n",
 709                             resp->command);
 710                 break;
 711         }
 712         lbs_deb_leave(LBS_DEB_HOST);
 713         return ret;
 714 }
 715
 716 int libertas_process_rx_command(wlan_private * priv)
 717 {
 718         u16 respcmd;
 719         struct cmd_ds_command *resp;
 720         wlan_adapter *adapter = priv->adapter;
 721         int ret = 0;
 722         ulong flags;
 723         u16 result;
 724
 725         lbs_deb_enter(LBS_DEB_HOST);
 726
 727         /* Now we got response from FW, cancel the command timer */
 728         del_timer(&adapter->command_timer);
 729
 730         mutex_lock(&adapter->lock);
 731         spin_lock_irqsave(&adapter->driver_lock, flags);
 732
 733         if (!adapter->cur_cmd) {
 734                 lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
 735                 ret = -1;
 736                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 737                 goto done;
 738         }
 739         resp = (struct cmd_ds_command *)(adapter->cur_cmd->bufvirtualaddr);
 740
 741         respcmd = le16_to_cpu(resp->command);
 742         result = le16_to_cpu(resp->result);
 743
 744         lbs_deb_host("CMD_RESP: response 0x%04x, size %d, jiffies %lu\n",
 745                 respcmd, priv->upld_len, jiffies);
 746         lbs_deb_hex(LBS_DEB_HOST, "CMD_RESP", adapter->cur_cmd->bufvirtualaddr,
 747                     priv->upld_len);
 748
 749         if (!(respcmd & 0x8000)) {
 750                 lbs_deb_host("invalid response!\n");
 751                 adapter->cur_cmd_retcode = -1;
 752                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 753                 adapter->nr_cmd_pending--;
 754                 adapter->cur_cmd = NULL;
 755                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 756                 ret = -1;
 757                 goto done;
 758         }
 759
 760         /* Store the response code to cur_cmd_retcode. */
 761         adapter->cur_cmd_retcode = result;;
 762
 763         if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
 764                 struct cmd_ds_802_11_ps_mode *psmode = &resp->params.psmode;
 765                 u16 action = le16_to_cpu(psmode->action);
 766
 767                 lbs_deb_host(
 768                        "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
 769                        result, action);
 770
 771                 if (result) {
 772                         lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
 773                                     result);
 774                         /*
 775                          * We should not re-try enter-ps command in
 776                          * ad-hoc mode. It takes place in
 777                          * libertas_execute_next_command().
 778                          */
 779                         if (adapter->mode == IW_MODE_ADHOC &&
 780                             action == CMD_SUBCMD_ENTER_PS)
 781                                 adapter->psmode = WLAN802_11POWERMODECAM;
 782                 } else if (action == CMD_SUBCMD_ENTER_PS) {
 783                         adapter->needtowakeup = 0;
 784                         adapter->psstate = PS_STATE_AWAKE;
 785
 786                         lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
 787                         if (adapter->connect_status != LIBERTAS_CONNECTED) {
 788                                 /*
 789                                  * When Deauth Event received before Enter_PS command
 790                                  * response, We need to wake up the firmware.
 791                                  */
 792                                 lbs_deb_host(
 793                                        "disconnected, invoking libertas_ps_wakeup\n");
 794
 795                                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 796                                 mutex_unlock(&adapter->lock);
 797                                 libertas_ps_wakeup(priv, 0);
 798                                 mutex_lock(&adapter->lock);
 799                                 spin_lock_irqsave(&adapter->driver_lock, flags);
 800                         }
 801                 } else if (action == CMD_SUBCMD_EXIT_PS) {
 802                         adapter->needtowakeup = 0;
 803                         adapter->psstate = PS_STATE_FULL_POWER;
 804                         lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
 805                 } else {
 806                         lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
 807                 }
 808
 809                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 810                 adapter->nr_cmd_pending--;
 811                 adapter->cur_cmd = NULL;
 812                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 813
 814                 ret = 0;
 815                 goto done;
 816         }
 817
 818         if (adapter->cur_cmd->cmdflags & CMD_F_HOSTCMD) {
 819                 /* Copy the response back to response buffer */
 820                 memcpy(adapter->cur_cmd->pdata_buf, resp,
 821                        le16_to_cpu(resp->size));
 822                 adapter->cur_cmd->cmdflags &= ~CMD_F_HOSTCMD;
 823         }
 824
 825         /* If the command is not successful, cleanup and return failure */
 826         if ((result != 0 || !(respcmd & 0x8000))) {
 827                 lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
 828                        result, respcmd);
 829                 /*
 830                  * Handling errors here
 831                  */
 832                 switch (respcmd) {
 833                 case CMD_RET(CMD_GET_HW_SPEC):
 834                 case CMD_RET(CMD_802_11_RESET):
 835                         lbs_deb_host("CMD_RESP: reset failed\n");
 836                         break;
 837
 838                 }
 839
 840                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 841                 adapter->nr_cmd_pending--;
 842                 adapter->cur_cmd = NULL;
 843                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 844
 845                 ret = -1;
 846                 goto done;
 847         }
 848
 849         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 850
 851         ret = handle_cmd_response(respcmd, resp, priv);
 852
 853         spin_lock_irqsave(&adapter->driver_lock, flags);
 854         if (adapter->cur_cmd) {
 855                 /* Clean up and Put current command back to cmdfreeq */
 856                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 857                 adapter->nr_cmd_pending--;
 858                 WARN_ON(adapter->nr_cmd_pending > 128);
 859                 adapter->cur_cmd = NULL;
 860         }
 861         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 862
 863 done:
 864         mutex_unlock(&adapter->lock);
 865         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
 866         return ret;
 867 }
 868
 869 int libertas_process_event(wlan_private * priv)
 870 {
 871         int ret = 0;
 872         wlan_adapter *adapter = priv->adapter;
 873         u32 eventcause;
 874
 875         lbs_deb_enter(LBS_DEB_CMD);
 876
 877         spin_lock_irq(&adapter->driver_lock);
 878         eventcause = adapter->eventcause;
 879         spin_unlock_irq(&adapter->driver_lock);
 880
 881         lbs_deb_cmd("event cause 0x%x\n", eventcause);
 882
 883         switch (eventcause >> SBI_EVENT_CAUSE_SHIFT) {
 884         case MACREG_INT_CODE_LINK_SENSED:
 885                 lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n");
 886                 break;
 887
 888         case MACREG_INT_CODE_DEAUTHENTICATED:
 889                 lbs_deb_cmd("EVENT: deauthenticated\n");
 890                 libertas_mac_event_disconnected(priv);
 891                 break;
 892
 893         case MACREG_INT_CODE_DISASSOCIATED:
 894                 lbs_deb_cmd("EVENT: disassociated\n");
 895                 libertas_mac_event_disconnected(priv);
 896                 break;
 897
 898         case MACREG_INT_CODE_LINK_LOSE_NO_SCAN:
 899                 lbs_deb_cmd("EVENT: link lost\n");
 900                 libertas_mac_event_disconnected(priv);
 901                 break;
 902
 903         case MACREG_INT_CODE_PS_SLEEP:
 904                 lbs_deb_cmd("EVENT: sleep\n");
 905
 906                 /* handle unexpected PS SLEEP event */
 907                 if (adapter->psstate == PS_STATE_FULL_POWER) {
 908                         lbs_deb_cmd(
 909                                "EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
 910                         break;
 911                 }
 912                 adapter->psstate = PS_STATE_PRE_SLEEP;
 913
 914                 libertas_ps_confirm_sleep(priv, (u16) adapter->psmode);
 915
 916                 break;
 917
 918         case MACREG_INT_CODE_PS_AWAKE:
 919                 lbs_deb_cmd("EVENT: awake\n");
 920
 921                 /* handle unexpected PS AWAKE event */
 922                 if (adapter->psstate == PS_STATE_FULL_POWER) {
 923                         lbs_deb_cmd(
 924                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
 925                         break;
 926                 }
 927
 928                 adapter->psstate = PS_STATE_AWAKE;
 929
 930                 if (adapter->needtowakeup) {
 931                         /*
 932                          * wait for the command processing to finish
 933                          * before resuming sending
 934                          * adapter->needtowakeup will be set to FALSE
 935                          * in libertas_ps_wakeup()
 936                          */
 937                         lbs_deb_cmd("waking up ...\n");
 938                         libertas_ps_wakeup(priv, 0);
 939                 }
 940                 break;
 941
 942         case MACREG_INT_CODE_MIC_ERR_UNICAST:
 943                 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
 944                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
 945                 break;
 946
 947         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
 948                 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
 949                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 950                 break;
 951         case MACREG_INT_CODE_MIB_CHANGED:
 952         case MACREG_INT_CODE_INIT_DONE:
 953                 break;
 954
 955         case MACREG_INT_CODE_ADHOC_BCN_LOST:
 956                 lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
 957                 break;
 958
 959         case MACREG_INT_CODE_RSSI_LOW:
 960                 lbs_pr_alert("EVENT: rssi low\n");
 961                 break;
 962         case MACREG_INT_CODE_SNR_LOW:
 963                 lbs_pr_alert("EVENT: snr low\n");
 964                 break;
 965         case MACREG_INT_CODE_MAX_FAIL:
 966                 lbs_pr_alert("EVENT: max fail\n");
 967                 break;
 968         case MACREG_INT_CODE_RSSI_HIGH:
 969                 lbs_pr_alert("EVENT: rssi high\n");
 970                 break;
 971         case MACREG_INT_CODE_SNR_HIGH:
 972                 lbs_pr_alert("EVENT: snr high\n");
 973                 break;
 974
 975         case MACREG_INT_CODE_MESH_AUTO_STARTED:
 976                 /* Ignore spurious autostart events if autostart is disabled */
 977                 if (!priv->mesh_autostart_enabled) {
 978                         lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
 979                         break;
 980                 }
 981                 lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
 982                 adapter->connect_status = LIBERTAS_CONNECTED;
 983                 if (priv->mesh_open == 1) {
 984                         netif_wake_queue(priv->mesh_dev);
 985                         netif_carrier_on(priv->mesh_dev);
 986                 }
 987                 adapter->mode = IW_MODE_ADHOC;
 988                 schedule_work(&priv->sync_channel);
 989                 break;
 990
 991         default:
 992                 lbs_pr_alert("EVENT: unknown event id 0x%04x\n",
 993                        eventcause >> SBI_EVENT_CAUSE_SHIFT);
 994                 break;
 995         }
 996
 997         spin_lock_irq(&adapter->driver_lock);
 998         adapter->eventcause = 0;
 999         spin_unlock_irq(&adapter->driver_lock);
1000
1001         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1002         return ret;
1003 }