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