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_cmd("Handles disconnect event.\n");
  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         adapter->rxpd_rate = 0;
  64         lbs_deb_cmd("Current SSID='%s', ssid length=%u\n",
  65                     escape_essid(adapter->curbssparams.ssid,
  66                                  adapter->curbssparams.ssid_len),
  67                     adapter->curbssparams.ssid_len);
  68         lbs_deb_cmd("Previous SSID='%s', ssid length=%u\n",
  69                     escape_essid(adapter->prev_ssid, adapter->prev_ssid_len),
  70                     adapter->prev_ssid_len);
  71
  72         adapter->connect_status = libertas_disconnected;
  73
  74         /* Save previous SSID and BSSID for possible reassociation */
  75         memcpy(&adapter->prev_ssid, &adapter->curbssparams.ssid,
  76                IW_ESSID_MAX_SIZE);
  77         adapter->prev_ssid_len = adapter->curbssparams.ssid_len;
  78         memcpy(adapter->prev_bssid, adapter->curbssparams.bssid, ETH_ALEN);
  79
  80         /* Clear out associated SSID and BSSID since connection is
  81          * no longer valid.
  82          */
  83         memset(&adapter->curbssparams.bssid, 0, ETH_ALEN);
  84         memset(&adapter->curbssparams.ssid, 0, IW_ESSID_MAX_SIZE);
  85         adapter->curbssparams.ssid_len = 0;
  86
  87         if (adapter->psstate != PS_STATE_FULL_POWER) {
  88                 /* make firmware to exit PS mode */
  89                 lbs_deb_cmd("Disconnected, so exit PS mode.\n");
  90                 libertas_ps_wakeup(priv, 0);
  91         }
  92 }
  93
  94 /**
  95  *  @brief This function handles MIC failure event.
  96  *
  97  *  @param priv    A pointer to wlan_private structure
  98  *  @para  event   the event id
  99  *  @return        n/a
 100  */
 101 static void handle_mic_failureevent(wlan_private * priv, u32 event)
 102 {
 103         char buf[50];
 104
 105         memset(buf, 0, sizeof(buf));
 106
 107         sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
 108
 109         if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) {
 110                 strcat(buf, "unicast ");
 111         } else {
 112                 strcat(buf, "multicast ");
 113         }
 114
 115         libertas_send_iwevcustom_event(priv, buf);
 116 }
 117
 118 static int wlan_ret_reg_access(wlan_private * priv,
 119                                u16 type, struct cmd_ds_command *resp)
 120 {
 121         int ret = 0;
 122         wlan_adapter *adapter = priv->adapter;
 123
 124         lbs_deb_enter(LBS_DEB_CMD);
 125
 126         switch (type) {
 127         case cmd_ret_mac_reg_access:
 128                 {
 129                         struct cmd_ds_mac_reg_access *reg = &resp->params.macreg;
 130
 131                         adapter->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 132                         adapter->offsetvalue.value = le32_to_cpu(reg->value);
 133                         break;
 134                 }
 135
 136         case cmd_ret_bbp_reg_access:
 137                 {
 138                         struct cmd_ds_bbp_reg_access *reg = &resp->params.bbpreg;
 139
 140                         adapter->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 141                         adapter->offsetvalue.value = reg->value;
 142                         break;
 143                 }
 144
 145         case cmd_ret_rf_reg_access:
 146                 {
 147                         struct cmd_ds_rf_reg_access *reg = &resp->params.rfreg;
 148
 149                         adapter->offsetvalue.offset = (u32)le16_to_cpu(reg->offset);
 150                         adapter->offsetvalue.value = reg->value;
 151                         break;
 152                 }
 153
 154         default:
 155                 ret = -1;
 156         }
 157
 158         lbs_deb_enter_args(LBS_DEB_CMD, "ret %d", ret);
 159         return ret;
 160 }
 161
 162 static int wlan_ret_get_hw_spec(wlan_private * priv,
 163                                 struct cmd_ds_command *resp)
 164 {
 165         u32 i;
 166         struct cmd_ds_get_hw_spec *hwspec = &resp->params.hwspec;
 167         wlan_adapter *adapter = priv->adapter;
 168         int ret = 0;
 169
 170         lbs_deb_enter(LBS_DEB_CMD);
 171
 172         adapter->fwcapinfo = le32_to_cpu(hwspec->fwcapinfo);
 173
 174         memcpy(adapter->fwreleasenumber, hwspec->fwreleasenumber, 4);
 175
 176         lbs_deb_cmd("GET_HW_SPEC: FWReleaseVersion- %u.%u.%u.p%u\n",
 177                     adapter->fwreleasenumber[2], adapter->fwreleasenumber[1],
 178                     adapter->fwreleasenumber[0], adapter->fwreleasenumber[3]);
 179         lbs_deb_cmd("GET_HW_SPEC: Permanent addr- %2x:%2x:%2x:%2x:%2x:%2x\n",
 180                hwspec->permanentaddr[0], hwspec->permanentaddr[1],
 181                hwspec->permanentaddr[2], hwspec->permanentaddr[3],
 182                hwspec->permanentaddr[4], hwspec->permanentaddr[5]);
 183         lbs_deb_cmd("GET_HW_SPEC: hwifversion=0x%X  version=0x%X\n",
 184                hwspec->hwifversion, hwspec->version);
 185
 186         adapter->regioncode = le16_to_cpu(hwspec->regioncode);
 187
 188         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 189                 /* use the region code to search for the index */
 190                 if (adapter->regioncode == libertas_region_code_to_index[i]) {
 191                         adapter->regiontableindex = (u16) i;
 192                         break;
 193                 }
 194         }
 195
 196         /* if it's unidentified region code, use the default (USA) */
 197         if (i >= MRVDRV_MAX_REGION_CODE) {
 198                 adapter->regioncode = 0x10;
 199                 adapter->regiontableindex = 0;
 200                 lbs_pr_info("unidentified region code; using the default (USA)\n");
 201         }
 202
 203         if (adapter->current_addr[0] == 0xff)
 204                 memmove(adapter->current_addr, hwspec->permanentaddr, ETH_ALEN);
 205
 206         memcpy(priv->dev->dev_addr, adapter->current_addr, ETH_ALEN);
 207         if (priv->mesh_dev)
 208                 memcpy(priv->mesh_dev->dev_addr, adapter->current_addr, ETH_ALEN);
 209
 210         if (libertas_set_regiontable(priv, adapter->regioncode, 0)) {
 211                 ret = -1;
 212                 goto done;
 213         }
 214
 215         if (libertas_set_universaltable(priv, 0)) {
 216                 ret = -1;
 217                 goto done;
 218         }
 219
 220 done:
 221         lbs_deb_enter_args(LBS_DEB_CMD, "ret %d", ret);
 222         return ret;
 223 }
 224
 225 static int wlan_ret_802_11_sleep_params(wlan_private * priv,
 226                                         struct cmd_ds_command *resp)
 227 {
 228         struct cmd_ds_802_11_sleep_params *sp = &resp->params.sleep_params;
 229         wlan_adapter *adapter = priv->adapter;
 230
 231         lbs_deb_enter(LBS_DEB_CMD);
 232
 233         lbs_deb_cmd("error=%x offset=%x stabletime=%x calcontrol=%x\n"
 234                     " extsleepclk=%x\n", le16_to_cpu(sp->error),
 235                     le16_to_cpu(sp->offset), le16_to_cpu(sp->stabletime),
 236                     sp->calcontrol, sp->externalsleepclk);
 237
 238         adapter->sp.sp_error = le16_to_cpu(sp->error);
 239         adapter->sp.sp_offset = le16_to_cpu(sp->offset);
 240         adapter->sp.sp_stabletime = le16_to_cpu(sp->stabletime);
 241         adapter->sp.sp_calcontrol = sp->calcontrol;
 242         adapter->sp.sp_extsleepclk = sp->externalsleepclk;
 243         adapter->sp.sp_reserved = le16_to_cpu(sp->reserved);
 244
 245         lbs_deb_enter(LBS_DEB_CMD);
 246         return 0;
 247 }
 248
 249 static int wlan_ret_802_11_stat(wlan_private * priv,
 250                                 struct cmd_ds_command *resp)
 251 {
 252 /*      currently adapter->wlan802_11Stat is unused
 253
 254         struct cmd_ds_802_11_get_stat *p11Stat = &resp->params.gstat;
 255         wlan_adapter *adapter = priv->adapter;
 256
 257         // TODO Convert it to Big endian befor copy
 258         memcpy(&adapter->wlan802_11Stat,
 259                p11Stat, sizeof(struct cmd_ds_802_11_get_stat));
 260 */
 261         return 0;
 262 }
 263
 264 static int wlan_ret_802_11_snmp_mib(wlan_private * priv,
 265                                     struct cmd_ds_command *resp)
 266 {
 267         struct cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
 268         u16 oid = le16_to_cpu(smib->oid);
 269         u16 querytype = le16_to_cpu(smib->querytype);
 270
 271         lbs_deb_enter(LBS_DEB_CMD);
 272
 273         lbs_deb_cmd("SNMP_RESP: value of the oid = %x, querytype=%x\n", oid,
 274                querytype);
 275         lbs_deb_cmd("SNMP_RESP: Buf size  = %x\n", le16_to_cpu(smib->bufsize));
 276
 277         if (querytype == cmd_act_get) {
 278                 switch (oid) {
 279                 case fragthresh_i:
 280                         priv->adapter->fragthsd =
 281                                 le16_to_cpu(*((__le16 *)(smib->value)));
 282                         lbs_deb_cmd("SNMP_RESP: fragthsd =%u\n",
 283                                     priv->adapter->fragthsd);
 284                         break;
 285                 case rtsthresh_i:
 286                         priv->adapter->rtsthsd =
 287                                 le16_to_cpu(*((__le16 *)(smib->value)));
 288                         lbs_deb_cmd("SNMP_RESP: rtsthsd =%u\n",
 289                                     priv->adapter->rtsthsd);
 290                         break;
 291                 case short_retrylim_i:
 292                         priv->adapter->txretrycount =
 293                                 le16_to_cpu(*((__le16 *)(smib->value)));
 294                         lbs_deb_cmd("SNMP_RESP: txretrycount =%u\n",
 295                                     priv->adapter->rtsthsd);
 296                         break;
 297                 default:
 298                         break;
 299                 }
 300         }
 301
 302         lbs_deb_enter(LBS_DEB_CMD);
 303         return 0;
 304 }
 305
 306 static int wlan_ret_802_11_key_material(wlan_private * priv,
 307                                         struct cmd_ds_command *resp)
 308 {
 309         struct cmd_ds_802_11_key_material *pkeymaterial =
 310             &resp->params.keymaterial;
 311         wlan_adapter *adapter = priv->adapter;
 312         u16 action = le16_to_cpu(pkeymaterial->action);
 313
 314         lbs_deb_enter(LBS_DEB_CMD);
 315
 316         /* Copy the returned key to driver private data */
 317         if (action == cmd_act_get) {
 318                 u8 * buf_ptr = (u8 *) &pkeymaterial->keyParamSet;
 319                 u8 * resp_end = (u8 *) (resp + le16_to_cpu(resp->size));
 320
 321                 while (buf_ptr < resp_end) {
 322                         struct MrvlIEtype_keyParamSet * pkeyparamset =
 323                             (struct MrvlIEtype_keyParamSet *) buf_ptr;
 324                         struct enc_key * pkey;
 325                         u16 param_set_len = le16_to_cpu(pkeyparamset->length);
 326                         u16 key_len = le16_to_cpu(pkeyparamset->keylen);
 327                         u16 key_flags = le16_to_cpu(pkeyparamset->keyinfo);
 328                         u16 key_type = le16_to_cpu(pkeyparamset->keytypeid);
 329                         u8 * end;
 330
 331                         end = (u8 *) pkeyparamset + sizeof (pkeyparamset->type)
 332                                                   + sizeof (pkeyparamset->length)
 333                                                   + param_set_len;
 334                         /* Make sure we don't access past the end of the IEs */
 335                         if (end > resp_end)
 336                                 break;
 337
 338                         if (key_flags & KEY_INFO_WPA_UNICAST)
 339                                 pkey = &adapter->wpa_unicast_key;
 340                         else if (key_flags & KEY_INFO_WPA_MCAST)
 341                                 pkey = &adapter->wpa_mcast_key;
 342                         else
 343                                 break;
 344
 345                         /* Copy returned key into driver */
 346                         memset(pkey, 0, sizeof(struct enc_key));
 347                         if (key_len > sizeof(pkey->key))
 348                                 break;
 349                         pkey->type = key_type;
 350                         pkey->flags = key_flags;
 351                         pkey->len = key_len;
 352                         memcpy(pkey->key, pkeyparamset->key, pkey->len);
 353
 354                         buf_ptr = end + 1;
 355                 }
 356         }
 357
 358         lbs_deb_enter(LBS_DEB_CMD);
 359         return 0;
 360 }
 361
 362 static int wlan_ret_802_11_mac_address(wlan_private * priv,
 363                                        struct cmd_ds_command *resp)
 364 {
 365         struct cmd_ds_802_11_mac_address *macadd = &resp->params.macadd;
 366         wlan_adapter *adapter = priv->adapter;
 367
 368         lbs_deb_enter(LBS_DEB_CMD);
 369
 370         memcpy(adapter->current_addr, macadd->macadd, ETH_ALEN);
 371
 372         lbs_deb_enter(LBS_DEB_CMD);
 373         return 0;
 374 }
 375
 376 static int wlan_ret_802_11_rf_tx_power(wlan_private * priv,
 377                                        struct cmd_ds_command *resp)
 378 {
 379         struct cmd_ds_802_11_rf_tx_power *rtp = &resp->params.txp;
 380         wlan_adapter *adapter = priv->adapter;
 381
 382         lbs_deb_enter(LBS_DEB_CMD);
 383
 384         adapter->txpowerlevel = le16_to_cpu(rtp->currentlevel);
 385
 386         lbs_deb_cmd("Current TxPower Level = %d\n", adapter->txpowerlevel);
 387
 388         lbs_deb_enter(LBS_DEB_CMD);
 389         return 0;
 390 }
 391
 392 static int wlan_ret_802_11_rf_antenna(wlan_private * priv,
 393                                       struct cmd_ds_command *resp)
 394 {
 395         struct cmd_ds_802_11_rf_antenna *pAntenna = &resp->params.rant;
 396         wlan_adapter *adapter = priv->adapter;
 397         u16 action = le16_to_cpu(pAntenna->action);
 398
 399         if (action == cmd_act_get_rx)
 400                 adapter->rxantennamode = le16_to_cpu(pAntenna->antennamode);
 401
 402         if (action == cmd_act_get_tx)
 403                 adapter->txantennamode = le16_to_cpu(pAntenna->antennamode);
 404
 405         lbs_deb_cmd("RF_ANT_RESP: action = 0x%x, mode = 0x%04x\n",
 406                action, le16_to_cpu(pAntenna->antennamode));
 407
 408         return 0;
 409 }
 410
 411 static int wlan_ret_802_11_rate_adapt_rateset(wlan_private * priv,
 412                                               struct cmd_ds_command *resp)
 413 {
 414         struct cmd_ds_802_11_rate_adapt_rateset *rates = &resp->params.rateset;
 415         wlan_adapter *adapter = priv->adapter;
 416
 417         lbs_deb_enter(LBS_DEB_CMD);
 418
 419         if (rates->action == cmd_act_get) {
 420                 adapter->enablehwauto = le16_to_cpu(rates->enablehwauto);
 421                 adapter->ratebitmap = le16_to_cpu(rates->bitmap);
 422         }
 423
 424         lbs_deb_enter(LBS_DEB_CMD);
 425         return 0;
 426 }
 427
 428 static int wlan_ret_802_11_data_rate(wlan_private * priv,
 429                                      struct cmd_ds_command *resp)
 430 {
 431         struct cmd_ds_802_11_data_rate *pdatarate = &resp->params.drate;
 432         wlan_adapter *adapter = priv->adapter;
 433         u8 dot11datarate;
 434
 435         lbs_deb_enter(LBS_DEB_CMD);
 436
 437         lbs_dbg_hex("DATA_RATE_RESP: data_rate- ",
 438                 (u8 *) pdatarate, sizeof(struct cmd_ds_802_11_data_rate));
 439
 440         dot11datarate = pdatarate->datarate[0];
 441         if (pdatarate->action == cpu_to_le16(cmd_act_get_tx_rate)) {
 442                 memcpy(adapter->libertas_supported_rates, pdatarate->datarate,
 443                        sizeof(adapter->libertas_supported_rates));
 444         }
 445         adapter->datarate = libertas_index_to_data_rate(dot11datarate);
 446
 447         lbs_deb_enter(LBS_DEB_CMD);
 448         return 0;
 449 }
 450
 451 static int wlan_ret_802_11_rf_channel(wlan_private * priv,
 452                                       struct cmd_ds_command *resp)
 453 {
 454         struct cmd_ds_802_11_rf_channel *rfchannel = &resp->params.rfchannel;
 455         wlan_adapter *adapter = priv->adapter;
 456         u16 action = le16_to_cpu(rfchannel->action);
 457         u16 newchannel = le16_to_cpu(rfchannel->currentchannel);
 458
 459         lbs_deb_enter(LBS_DEB_CMD);
 460
 461         if (action == cmd_opt_802_11_rf_channel_get
 462             && adapter->curbssparams.channel != newchannel) {
 463                 lbs_deb_cmd("channel Switch: %d to %d\n",
 464                        adapter->curbssparams.channel, newchannel);
 465
 466                 /* Update the channel again */
 467                 adapter->curbssparams.channel = newchannel;
 468         }
 469
 470         lbs_deb_enter(LBS_DEB_CMD);
 471         return 0;
 472 }
 473
 474 static int wlan_ret_802_11_rssi(wlan_private * priv,
 475                                 struct cmd_ds_command *resp)
 476 {
 477         struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
 478         wlan_adapter *adapter = priv->adapter;
 479
 480         /* store the non average value */
 481         adapter->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
 482         adapter->NF[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->noisefloor);
 483
 484         adapter->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
 485         adapter->NF[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgnoisefloor);
 486
 487         adapter->RSSI[TYPE_BEACON][TYPE_NOAVG] =
 488             CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_NOAVG],
 489                      adapter->NF[TYPE_BEACON][TYPE_NOAVG]);
 490
 491         adapter->RSSI[TYPE_BEACON][TYPE_AVG] =
 492             CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
 493                      adapter->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
 494
 495         lbs_deb_cmd("Beacon RSSI value = 0x%x\n",
 496                adapter->RSSI[TYPE_BEACON][TYPE_AVG]);
 497
 498         return 0;
 499 }
 500
 501 static int wlan_ret_802_11_eeprom_access(wlan_private * priv,
 502                                   struct cmd_ds_command *resp)
 503 {
 504         wlan_adapter *adapter = priv->adapter;
 505         struct wlan_ioctl_regrdwr *pbuf;
 506         pbuf = (struct wlan_ioctl_regrdwr *) adapter->prdeeprom;
 507
 508         lbs_deb_cmd("eeprom read len=%x\n",
 509                le16_to_cpu(resp->params.rdeeprom.bytecount));
 510         if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) {
 511                 pbuf->NOB = 0;
 512                 lbs_deb_cmd("eeprom read return length is too big\n");
 513                 return -1;
 514         }
 515         pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount);
 516         if (pbuf->NOB > 0) {
 517
 518                 memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value,
 519                        le16_to_cpu(resp->params.rdeeprom.bytecount));
 520                 lbs_dbg_hex("adapter", (char *)&pbuf->value,
 521                         le16_to_cpu(resp->params.rdeeprom.bytecount));
 522         }
 523         return 0;
 524 }
 525
 526 static int wlan_ret_get_log(wlan_private * priv,
 527                             struct cmd_ds_command *resp)
 528 {
 529         struct cmd_ds_802_11_get_log *logmessage = &resp->params.glog;
 530         wlan_adapter *adapter = priv->adapter;
 531
 532         lbs_deb_enter(LBS_DEB_CMD);
 533
 534         /* Stored little-endian */
 535         memcpy(&adapter->logmsg, logmessage, sizeof(struct cmd_ds_802_11_get_log));
 536
 537         lbs_deb_enter(LBS_DEB_CMD);
 538         return 0;
 539 }
 540
 541 static int libertas_ret_802_11_enable_rsn(wlan_private * priv,
 542                                           struct cmd_ds_command *resp)
 543 {
 544         struct cmd_ds_802_11_enable_rsn *enable_rsn = &resp->params.enbrsn;
 545         wlan_adapter *adapter = priv->adapter;
 546         u32 * pdata_buf = adapter->cur_cmd->pdata_buf;
 547
 548         lbs_deb_enter(LBS_DEB_CMD);
 549
 550         if (enable_rsn->action == cpu_to_le16(cmd_act_get)) {
 551                 if (pdata_buf)
 552                         *pdata_buf = (u32) le16_to_cpu(enable_rsn->enable);
 553         }
 554
 555         lbs_deb_enter(LBS_DEB_CMD);
 556         return 0;
 557 }
 558
 559 static inline int handle_cmd_response(u16 respcmd,
 560                                       struct cmd_ds_command *resp,
 561                                       wlan_private *priv)
 562 {
 563         int ret = 0;
 564         unsigned long flags;
 565         wlan_adapter *adapter = priv->adapter;
 566
 567         switch (respcmd) {
 568         case cmd_ret_mac_reg_access:
 569         case cmd_ret_bbp_reg_access:
 570         case cmd_ret_rf_reg_access:
 571                 ret = wlan_ret_reg_access(priv, respcmd, resp);
 572                 break;
 573
 574         case cmd_ret_hw_spec_info:
 575                 ret = wlan_ret_get_hw_spec(priv, resp);
 576                 break;
 577
 578         case cmd_ret_802_11_scan:
 579                 ret = libertas_ret_80211_scan(priv, resp);
 580                 break;
 581
 582         case cmd_ret_802_11_get_log:
 583                 ret = wlan_ret_get_log(priv, resp);
 584                 break;
 585
 586         case cmd_ret_802_11_associate:
 587         case cmd_ret_802_11_reassociate:
 588                 ret = libertas_ret_80211_associate(priv, resp);
 589                 break;
 590
 591         case cmd_ret_802_11_disassociate:
 592         case cmd_ret_802_11_deauthenticate:
 593                 ret = libertas_ret_80211_disassociate(priv, resp);
 594                 break;
 595
 596         case cmd_ret_802_11_ad_hoc_start:
 597         case cmd_ret_802_11_ad_hoc_join:
 598                 ret = libertas_ret_80211_ad_hoc_start(priv, resp);
 599                 break;
 600
 601         case cmd_ret_802_11_stat:
 602                 ret = wlan_ret_802_11_stat(priv, resp);
 603                 break;
 604
 605         case cmd_ret_802_11_snmp_mib:
 606                 ret = wlan_ret_802_11_snmp_mib(priv, resp);
 607                 break;
 608
 609         case cmd_ret_802_11_rf_tx_power:
 610                 ret = wlan_ret_802_11_rf_tx_power(priv, resp);
 611                 break;
 612
 613         case cmd_ret_802_11_set_afc:
 614         case cmd_ret_802_11_get_afc:
 615                 spin_lock_irqsave(&adapter->driver_lock, flags);
 616                 memmove(adapter->cur_cmd->pdata_buf, &resp->params.afc,
 617                         sizeof(struct cmd_ds_802_11_afc));
 618                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 619
 620                 break;
 621         case cmd_ret_802_11_rf_antenna:
 622                 ret = wlan_ret_802_11_rf_antenna(priv, resp);
 623                 break;
 624
 625         case cmd_ret_mac_multicast_adr:
 626         case cmd_ret_mac_control:
 627         case cmd_ret_802_11_set_wep:
 628         case cmd_ret_802_11_reset:
 629         case cmd_ret_802_11_authenticate:
 630         case cmd_ret_802_11_radio_control:
 631         case cmd_ret_802_11_beacon_stop:
 632                 break;
 633
 634         case cmd_ret_802_11_enable_rsn:
 635                 ret = libertas_ret_802_11_enable_rsn(priv, resp);
 636                 break;
 637
 638         case cmd_ret_802_11_data_rate:
 639                 ret = wlan_ret_802_11_data_rate(priv, resp);
 640                 break;
 641         case cmd_ret_802_11_rate_adapt_rateset:
 642                 ret = wlan_ret_802_11_rate_adapt_rateset(priv, resp);
 643                 break;
 644         case cmd_ret_802_11_rf_channel:
 645                 ret = wlan_ret_802_11_rf_channel(priv, resp);
 646                 break;
 647
 648         case cmd_ret_802_11_rssi:
 649                 ret = wlan_ret_802_11_rssi(priv, resp);
 650                 break;
 651
 652         case cmd_ret_802_11_mac_address:
 653                 ret = wlan_ret_802_11_mac_address(priv, resp);
 654                 break;
 655
 656         case cmd_ret_802_11_ad_hoc_stop:
 657                 ret = libertas_ret_80211_ad_hoc_stop(priv, resp);
 658                 break;
 659
 660         case cmd_ret_802_11_key_material:
 661                 lbs_deb_cmd("CMD_RESP: KEY_MATERIAL command response\n");
 662                 ret = wlan_ret_802_11_key_material(priv, resp);
 663                 break;
 664
 665         case cmd_ret_802_11_eeprom_access:
 666                 ret = wlan_ret_802_11_eeprom_access(priv, resp);
 667                 break;
 668
 669         case cmd_ret_802_11d_domain_info:
 670                 ret = libertas_ret_802_11d_domain_info(priv, resp);
 671                 break;
 672
 673         case cmd_ret_802_11_sleep_params:
 674                 ret = wlan_ret_802_11_sleep_params(priv, resp);
 675                 break;
 676         case cmd_ret_802_11_inactivity_timeout:
 677                 spin_lock_irqsave(&adapter->driver_lock, flags);
 678                 *((u16 *) adapter->cur_cmd->pdata_buf) =
 679                     le16_to_cpu(resp->params.inactivity_timeout.timeout);
 680                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 681                 break;
 682
 683         case cmd_ret_802_11_tpc_cfg:
 684                 spin_lock_irqsave(&adapter->driver_lock, flags);
 685                 memmove(adapter->cur_cmd->pdata_buf, &resp->params.tpccfg,
 686                         sizeof(struct cmd_ds_802_11_tpc_cfg));
 687                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 688                 break;
 689         case cmd_ret_802_11_led_gpio_ctrl:
 690                 spin_lock_irqsave(&adapter->driver_lock, flags);
 691                 memmove(adapter->cur_cmd->pdata_buf, &resp->params.ledgpio,
 692                         sizeof(struct cmd_ds_802_11_led_ctrl));
 693                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 694                 break;
 695         case cmd_ret_802_11_pwr_cfg:
 696                 spin_lock_irqsave(&adapter->driver_lock, flags);
 697                 memmove(adapter->cur_cmd->pdata_buf, &resp->params.pwrcfg,
 698                         sizeof(struct cmd_ds_802_11_pwr_cfg));
 699                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 700
 701                 break;
 702
 703         case cmd_ret_get_tsf:
 704                 spin_lock_irqsave(&adapter->driver_lock, flags);
 705                 memcpy(priv->adapter->cur_cmd->pdata_buf,
 706                        &resp->params.gettsf.tsfvalue, sizeof(u64));
 707                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 708                 break;
 709         case cmd_ret_bt_access:
 710                 spin_lock_irqsave(&adapter->driver_lock, flags);
 711                 if (adapter->cur_cmd->pdata_buf)
 712                         memcpy(adapter->cur_cmd->pdata_buf,
 713                                &resp->params.bt.addr1, 2 * ETH_ALEN);
 714                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 715                 break;
 716         case cmd_ret_fwt_access:
 717                 spin_lock_irqsave(&adapter->driver_lock, flags);
 718                 if (adapter->cur_cmd->pdata_buf)
 719                         memcpy(adapter->cur_cmd->pdata_buf, &resp->params.fwt,
 720                                sizeof(resp->params.fwt));
 721                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 722                 break;
 723         case cmd_ret_mesh_access:
 724                 if (adapter->cur_cmd->pdata_buf)
 725                         memcpy(adapter->cur_cmd->pdata_buf, &resp->params.mesh,
 726                                sizeof(resp->params.mesh));
 727                 break;
 728         case cmd_rte_802_11_tx_rate_query:
 729                 priv->adapter->txrate = resp->params.txrate.txrate;
 730                 break;
 731         default:
 732                 lbs_deb_cmd("CMD_RESP: Unknown command response %#x\n",
 733                             resp->command);
 734                 break;
 735         }
 736         return ret;
 737 }
 738
 739 int libertas_process_rx_command(wlan_private * priv)
 740 {
 741         u16 respcmd;
 742         struct cmd_ds_command *resp;
 743         wlan_adapter *adapter = priv->adapter;
 744         int ret = 0;
 745         ulong flags;
 746         u16 result;
 747
 748         lbs_deb_enter(LBS_DEB_CMD);
 749
 750         lbs_deb_cmd("CMD_RESP: @ %lu\n", jiffies);
 751
 752         /* Now we got response from FW, cancel the command timer */
 753         del_timer(&adapter->command_timer);
 754
 755         mutex_lock(&adapter->lock);
 756         spin_lock_irqsave(&adapter->driver_lock, flags);
 757
 758         if (!adapter->cur_cmd) {
 759                 lbs_deb_cmd("CMD_RESP: NULL cur_cmd=%p\n", adapter->cur_cmd);
 760                 ret = -1;
 761                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 762                 goto done;
 763         }
 764         resp = (struct cmd_ds_command *)(adapter->cur_cmd->bufvirtualaddr);
 765
 766         lbs_dbg_hex("CMD_RESP:", adapter->cur_cmd->bufvirtualaddr,
 767                     priv->upld_len);
 768
 769         respcmd = le16_to_cpu(resp->command);
 770
 771         result = le16_to_cpu(resp->result);
 772
 773         lbs_deb_cmd("CMD_RESP: %x result: %d length: %d\n", respcmd,
 774                     result, priv->upld_len);
 775
 776         if (!(respcmd & 0x8000)) {
 777                 lbs_deb_cmd("Invalid response to command!");
 778                 adapter->cur_cmd_retcode = -1;
 779                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 780                 adapter->nr_cmd_pending--;
 781                 adapter->cur_cmd = NULL;
 782                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 783                 ret = -1;
 784                 goto done;
 785         }
 786
 787         /* Store the response code to cur_cmd_retcode. */
 788         adapter->cur_cmd_retcode = result;;
 789
 790         if (respcmd == cmd_ret_802_11_ps_mode) {
 791                 struct cmd_ds_802_11_ps_mode *psmode = &resp->params.psmode;
 792                 u16 action = le16_to_cpu(psmode->action);
 793
 794                 lbs_deb_cmd(
 795                        "CMD_RESP: PS_MODE cmd reply result=%#x action=0x%X\n",
 796                        result, action);
 797
 798                 if (result) {
 799                         lbs_deb_cmd("CMD_RESP: PS command failed- %#x \n",
 800                                     result);
 801                         /*
 802                          * We should not re-try enter-ps command in
 803                          * ad-hoc mode. It takes place in
 804                          * libertas_execute_next_command().
 805                          */
 806                         if (adapter->mode == IW_MODE_ADHOC &&
 807                             action == cmd_subcmd_enter_ps)
 808                                 adapter->psmode = wlan802_11powermodecam;
 809                 } else if (action == cmd_subcmd_enter_ps) {
 810                         adapter->needtowakeup = 0;
 811                         adapter->psstate = PS_STATE_AWAKE;
 812
 813                         lbs_deb_cmd("CMD_RESP: Enter_PS command response\n");
 814                         if (adapter->connect_status != libertas_connected) {
 815                                 /*
 816                                  * When Deauth Event received before Enter_PS command
 817                                  * response, We need to wake up the firmware.
 818                                  */
 819                                 lbs_deb_cmd(
 820                                        "Disconnected, Going to invoke libertas_ps_wakeup\n");
 821
 822                                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 823                                 mutex_unlock(&adapter->lock);
 824                                 libertas_ps_wakeup(priv, 0);
 825                                 mutex_lock(&adapter->lock);
 826                                 spin_lock_irqsave(&adapter->driver_lock, flags);
 827                         }
 828                 } else if (action == cmd_subcmd_exit_ps) {
 829                         adapter->needtowakeup = 0;
 830                         adapter->psstate = PS_STATE_FULL_POWER;
 831                         lbs_deb_cmd("CMD_RESP: Exit_PS command response\n");
 832                 } else {
 833                         lbs_deb_cmd("CMD_RESP: PS- action=0x%X\n", action);
 834                 }
 835
 836                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 837                 adapter->nr_cmd_pending--;
 838                 adapter->cur_cmd = NULL;
 839                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 840
 841                 ret = 0;
 842                 goto done;
 843         }
 844
 845         if (adapter->cur_cmd->cmdflags & CMD_F_HOSTCMD) {
 846                 /* Copy the response back to response buffer */
 847                 memcpy(adapter->cur_cmd->pdata_buf, resp, resp->size);
 848
 849                 adapter->cur_cmd->cmdflags &= ~CMD_F_HOSTCMD;
 850         }
 851
 852         /* If the command is not successful, cleanup and return failure */
 853         if ((result != 0 || !(respcmd & 0x8000))) {
 854                 lbs_deb_cmd("CMD_RESP: command reply %#x result=%#x\n",
 855                        respcmd, result);
 856                 /*
 857                  * Handling errors here
 858                  */
 859                 switch (respcmd) {
 860                 case cmd_ret_hw_spec_info:
 861                 case cmd_ret_802_11_reset:
 862                         lbs_deb_cmd("CMD_RESP: Reset command failed\n");
 863                         break;
 864
 865                 }
 866
 867                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 868                 adapter->nr_cmd_pending--;
 869                 adapter->cur_cmd = NULL;
 870                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 871
 872                 ret = -1;
 873                 goto done;
 874         }
 875
 876         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 877
 878         ret = handle_cmd_response(respcmd, resp, priv);
 879
 880         spin_lock_irqsave(&adapter->driver_lock, flags);
 881         if (adapter->cur_cmd) {
 882                 /* Clean up and Put current command back to cmdfreeq */
 883                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 884                 adapter->nr_cmd_pending--;
 885                 WARN_ON(adapter->nr_cmd_pending > 128);
 886                 adapter->cur_cmd = NULL;
 887         }
 888         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 889
 890 done:
 891         mutex_unlock(&adapter->lock);
 892         lbs_deb_enter_args(LBS_DEB_CMD, "ret %d", ret);
 893         return ret;
 894 }
 895
 896 int libertas_process_event(wlan_private * priv)
 897 {
 898         int ret = 0;
 899         wlan_adapter *adapter = priv->adapter;
 900         u32 eventcause;
 901
 902         spin_lock_irq(&adapter->driver_lock);
 903         eventcause = adapter->eventcause;
 904         spin_unlock_irq(&adapter->driver_lock);
 905
 906         lbs_deb_enter(LBS_DEB_CMD);
 907
 908         lbs_deb_cmd("EVENT Cause %x\n", eventcause);
 909
 910         switch (eventcause >> SBI_EVENT_CAUSE_SHIFT) {
 911         case MACREG_INT_CODE_LINK_SENSED:
 912                 lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n");
 913                 break;
 914
 915         case MACREG_INT_CODE_DEAUTHENTICATED:
 916                 lbs_deb_cmd("EVENT: Deauthenticated\n");
 917                 libertas_mac_event_disconnected(priv);
 918                 break;
 919
 920         case MACREG_INT_CODE_DISASSOCIATED:
 921                 lbs_deb_cmd("EVENT: Disassociated\n");
 922                 libertas_mac_event_disconnected(priv);
 923                 break;
 924
 925         case MACREG_INT_CODE_LINK_LOSE_NO_SCAN:
 926                 lbs_deb_cmd("EVENT: Link lost\n");
 927                 libertas_mac_event_disconnected(priv);
 928                 break;
 929
 930         case MACREG_INT_CODE_PS_SLEEP:
 931                 lbs_deb_cmd("EVENT: SLEEP\n");
 932                 lbs_deb_cmd("_");
 933
 934                 /* handle unexpected PS SLEEP event */
 935                 if (adapter->psstate == PS_STATE_FULL_POWER) {
 936                         lbs_deb_cmd(
 937                                "EVENT: In FULL POWER mode - ignore PS SLEEP\n");
 938                         break;
 939                 }
 940                 adapter->psstate = PS_STATE_PRE_SLEEP;
 941
 942                 libertas_ps_confirm_sleep(priv, (u16) adapter->psmode);
 943
 944                 break;
 945
 946         case MACREG_INT_CODE_PS_AWAKE:
 947                 lbs_deb_cmd("EVENT: AWAKE \n");
 948                 lbs_deb_cmd("|");
 949
 950                 /* handle unexpected PS AWAKE event */
 951                 if (adapter->psstate == PS_STATE_FULL_POWER) {
 952                         lbs_deb_cmd(
 953                                "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
 954                         break;
 955                 }
 956
 957                 adapter->psstate = PS_STATE_AWAKE;
 958
 959                 if (adapter->needtowakeup) {
 960                         /*
 961                          * wait for the command processing to finish
 962                          * before resuming sending
 963                          * adapter->needtowakeup will be set to FALSE
 964                          * in libertas_ps_wakeup()
 965                          */
 966                         lbs_deb_cmd("Waking up...\n");
 967                         libertas_ps_wakeup(priv, 0);
 968                 }
 969                 break;
 970
 971         case MACREG_INT_CODE_MIC_ERR_UNICAST:
 972                 lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
 973                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
 974                 break;
 975
 976         case MACREG_INT_CODE_MIC_ERR_MULTICAST:
 977                 lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
 978                 handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 979                 break;
 980         case MACREG_INT_CODE_MIB_CHANGED:
 981         case MACREG_INT_CODE_INIT_DONE:
 982                 break;
 983
 984         case MACREG_INT_CODE_ADHOC_BCN_LOST:
 985                 lbs_deb_cmd("EVENT: HWAC - ADHOC BCN LOST\n");
 986                 break;
 987
 988         case MACREG_INT_CODE_RSSI_LOW:
 989                 lbs_pr_alert( "EVENT: RSSI_LOW\n");
 990                 break;
 991         case MACREG_INT_CODE_SNR_LOW:
 992                 lbs_pr_alert( "EVENT: SNR_LOW\n");
 993                 break;
 994         case MACREG_INT_CODE_MAX_FAIL:
 995                 lbs_pr_alert( "EVENT: MAX_FAIL\n");
 996                 break;
 997         case MACREG_INT_CODE_RSSI_HIGH:
 998                 lbs_pr_alert( "EVENT: RSSI_HIGH\n");
 999                 break;
1000         case MACREG_INT_CODE_SNR_HIGH:
1001                 lbs_pr_alert( "EVENT: SNR_HIGH\n");
1002                 break;
1003
1004         case MACREG_INT_CODE_MESH_AUTO_STARTED:
1005                 lbs_pr_alert( "EVENT: MESH_AUTO_STARTED\n");
1006                 adapter->connect_status = libertas_connected ;
1007                 if (priv->mesh_open == 1) {
1008                         netif_wake_queue(priv->mesh_dev) ;
1009                         netif_carrier_on(priv->mesh_dev) ;
1010                 }
1011                 adapter->mode = IW_MODE_ADHOC ;
1012                 schedule_work(&priv->sync_channel);
1013                 break;
1014
1015         default:
1016                 lbs_pr_alert( "EVENT: unknown event id: %#x\n",
1017                        eventcause >> SBI_EVENT_CAUSE_SHIFT);
1018                 break;
1019         }
1020
1021         spin_lock_irq(&adapter->driver_lock);
1022         adapter->eventcause = 0;
1023         spin_unlock_irq(&adapter->driver_lock);
1024
1025         lbs_deb_enter_args(LBS_DEB_CMD, "ret %d", ret);
1026         return ret;
1027 }