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