drivers/net/wireless/libertas/cmd.c

   1 /**
   2   * This file contains the handling of command.
   3   * It prepares command and sends it to firmware when it is ready.
   4   */
   5
   6 #include <net/iw_handler.h>
   7 #include "host.h"
   8 #include "hostcmd.h"
   9 #include "decl.h"
  10 #include "defs.h"
  11 #include "dev.h"
  12 #include "join.h"
  13 #include "wext.h"
  14
  15 static void cleanup_cmdnode(struct cmd_ctrl_node *ptempnode);
  16
  17 static u16 commands_allowed_in_ps[] = {
  18         CMD_802_11_RSSI,
  19 };
  20
  21 /**
  22  *  @brief This function checks if the commans is allowed
  23  *  in PS mode not.
  24  *
  25  *  @param command the command ID
  26  *  @return        TRUE or FALSE
  27  */
  28 static u8 is_command_allowed_in_ps(__le16 command)
  29 {
  30         int i;
  31
  32         for (i = 0; i < ARRAY_SIZE(commands_allowed_in_ps); i++) {
  33                 if (command == cpu_to_le16(commands_allowed_in_ps[i]))
  34                         return 1;
  35         }
  36
  37         return 0;
  38 }
  39
  40 static int wlan_cmd_hw_spec(wlan_private * priv, struct cmd_ds_command *cmd)
  41 {
  42         struct cmd_ds_get_hw_spec *hwspec = &cmd->params.hwspec;
  43
  44         lbs_deb_enter(LBS_DEB_CMD);
  45
  46         cmd->command = cpu_to_le16(CMD_GET_HW_SPEC);
  47         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_get_hw_spec) + S_DS_GEN);
  48         memcpy(hwspec->permanentaddr, priv->adapter->current_addr, ETH_ALEN);
  49
  50         lbs_deb_leave(LBS_DEB_CMD);
  51         return 0;
  52 }
  53
  54 static int wlan_cmd_802_11_ps_mode(wlan_private * priv,
  55                                    struct cmd_ds_command *cmd,
  56                                    u16 cmd_action)
  57 {
  58         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
  59         wlan_adapter *adapter = priv->adapter;
  60
  61         lbs_deb_enter(LBS_DEB_CMD);
  62
  63         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
  64         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
  65                                 S_DS_GEN);
  66         psm->action = cpu_to_le16(cmd_action);
  67         psm->multipledtim = 0;
  68         switch (cmd_action) {
  69         case CMD_SUBCMD_ENTER_PS:
  70                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
  71                 lbs_deb_cmd("locallisteninterval %d\n",
  72                        adapter->locallisteninterval);
  73
  74                 psm->locallisteninterval =
  75                     cpu_to_le16(adapter->locallisteninterval);
  76                 psm->nullpktinterval = 0;
  77                 psm->multipledtim =
  78                     cpu_to_le16(priv->adapter->multipledtim);
  79                 break;
  80
  81         case CMD_SUBCMD_EXIT_PS:
  82                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
  83                 break;
  84
  85         case CMD_SUBCMD_SLEEP_CONFIRMED:
  86                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
  87                 break;
  88
  89         default:
  90                 break;
  91         }
  92
  93         lbs_deb_leave(LBS_DEB_CMD);
  94         return 0;
  95 }
  96
  97 static int wlan_cmd_802_11_inactivity_timeout(wlan_private * priv,
  98                                               struct cmd_ds_command *cmd,
  99                                               u16 cmd_action, void *pdata_buf)
 100 {
 101         u16 *timeout = pdata_buf;
 102
 103         lbs_deb_enter(LBS_DEB_CMD);
 104
 105         cmd->command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
 106         cmd->size =
 107             cpu_to_le16(sizeof(struct cmd_ds_802_11_inactivity_timeout)
 108                              + S_DS_GEN);
 109
 110         cmd->params.inactivity_timeout.action = cpu_to_le16(cmd_action);
 111
 112         if (cmd_action)
 113                 cmd->params.inactivity_timeout.timeout = cpu_to_le16(*timeout);
 114         else
 115                 cmd->params.inactivity_timeout.timeout = 0;
 116
 117         lbs_deb_leave(LBS_DEB_CMD);
 118         return 0;
 119 }
 120
 121 static int wlan_cmd_802_11_sleep_params(wlan_private * priv,
 122                                         struct cmd_ds_command *cmd,
 123                                         u16 cmd_action)
 124 {
 125         wlan_adapter *adapter = priv->adapter;
 126         struct cmd_ds_802_11_sleep_params *sp = &cmd->params.sleep_params;
 127
 128         lbs_deb_enter(LBS_DEB_CMD);
 129
 130         cmd->size = cpu_to_le16((sizeof(struct cmd_ds_802_11_sleep_params)) +
 131                                 S_DS_GEN);
 132         cmd->command = cpu_to_le16(CMD_802_11_SLEEP_PARAMS);
 133
 134         if (cmd_action == CMD_ACT_GET) {
 135                 memset(&adapter->sp, 0, sizeof(struct sleep_params));
 136                 memset(sp, 0, sizeof(struct cmd_ds_802_11_sleep_params));
 137                 sp->action = cpu_to_le16(cmd_action);
 138         } else if (cmd_action == CMD_ACT_SET) {
 139                 sp->action = cpu_to_le16(cmd_action);
 140                 sp->error = cpu_to_le16(adapter->sp.sp_error);
 141                 sp->offset = cpu_to_le16(adapter->sp.sp_offset);
 142                 sp->stabletime = cpu_to_le16(adapter->sp.sp_stabletime);
 143                 sp->calcontrol = (u8) adapter->sp.sp_calcontrol;
 144                 sp->externalsleepclk = (u8) adapter->sp.sp_extsleepclk;
 145                 sp->reserved = cpu_to_le16(adapter->sp.sp_reserved);
 146         }
 147
 148         lbs_deb_leave(LBS_DEB_CMD);
 149         return 0;
 150 }
 151
 152 static int wlan_cmd_802_11_set_wep(wlan_private * priv,
 153                                    struct cmd_ds_command *cmd,
 154                                    u32 cmd_act,
 155                                    void * pdata_buf)
 156 {
 157         struct cmd_ds_802_11_set_wep *wep = &cmd->params.wep;
 158         wlan_adapter *adapter = priv->adapter;
 159         int ret = 0;
 160         struct assoc_request * assoc_req = pdata_buf;
 161
 162         lbs_deb_enter(LBS_DEB_CMD);
 163
 164         cmd->command = cpu_to_le16(CMD_802_11_SET_WEP);
 165         cmd->size = cpu_to_le16(sizeof(*wep) + S_DS_GEN);
 166
 167         if (cmd_act == CMD_ACT_ADD) {
 168                 int i;
 169
 170                 if (!assoc_req) {
 171                         lbs_deb_cmd("Invalid association request!");
 172                         ret = -1;
 173                         goto done;
 174                 }
 175
 176                 wep->action = cpu_to_le16(CMD_ACT_ADD);
 177
 178                 /* default tx key index */
 179                 wep->keyindex = cpu_to_le16((u16)(assoc_req->wep_tx_keyidx &
 180                                                   (u32)CMD_WEP_KEY_INDEX_MASK));
 181
 182                 /* Copy key types and material to host command structure */
 183                 for (i = 0; i < 4; i++) {
 184                         struct enc_key * pkey = &assoc_req->wep_keys[i];
 185
 186                         switch (pkey->len) {
 187                         case KEY_LEN_WEP_40:
 188                                 wep->keytype[i] =
 189                                         cpu_to_le16(CMD_TYPE_WEP_40_BIT);
 190                                 memmove(&wep->keymaterial[i], pkey->key,
 191                                         pkey->len);
 192                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
 193                                 break;
 194                         case KEY_LEN_WEP_104:
 195                                 wep->keytype[i] =
 196                                         cpu_to_le16(CMD_TYPE_WEP_104_BIT);
 197                                 memmove(&wep->keymaterial[i], pkey->key,
 198                                         pkey->len);
 199                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
 200                                 break;
 201                         case 0:
 202                                 break;
 203                         default:
 204                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
 205                                        i, pkey->len);
 206                                 ret = -1;
 207                                 goto done;
 208                                 break;
 209                         }
 210                 }
 211         } else if (cmd_act == CMD_ACT_REMOVE) {
 212                 /* ACT_REMOVE clears _all_ WEP keys */
 213                 wep->action = cpu_to_le16(CMD_ACT_REMOVE);
 214
 215                 /* default tx key index */
 216                 wep->keyindex = cpu_to_le16((u16)(adapter->wep_tx_keyidx &
 217                                                   (u32)CMD_WEP_KEY_INDEX_MASK));
 218                 lbs_deb_cmd("SET_WEP: remove key %d\n", adapter->wep_tx_keyidx);
 219         }
 220
 221         ret = 0;
 222
 223 done:
 224         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 225         return ret;
 226 }
 227
 228 static int wlan_cmd_802_11_enable_rsn(wlan_private * priv,
 229                                       struct cmd_ds_command *cmd,
 230                                       u16 cmd_action,
 231                                       void * pdata_buf)
 232 {
 233         struct cmd_ds_802_11_enable_rsn *penableRSN = &cmd->params.enbrsn;
 234         u32 * enable = pdata_buf;
 235
 236         lbs_deb_enter(LBS_DEB_CMD);
 237
 238         cmd->command = cpu_to_le16(CMD_802_11_ENABLE_RSN);
 239         cmd->size = cpu_to_le16(sizeof(*penableRSN) + S_DS_GEN);
 240         penableRSN->action = cpu_to_le16(cmd_action);
 241
 242         if (cmd_action == CMD_ACT_SET) {
 243                 if (*enable)
 244                         penableRSN->enable = cpu_to_le16(CMD_ENABLE_RSN);
 245                 else
 246                         penableRSN->enable = cpu_to_le16(CMD_DISABLE_RSN);
 247                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
 248         }
 249
 250         lbs_deb_leave(LBS_DEB_CMD);
 251         return 0;
 252 }
 253
 254
 255 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet * pkeyparamset,
 256                             struct enc_key * pkey)
 257 {
 258         lbs_deb_enter(LBS_DEB_CMD);
 259
 260         if (pkey->flags & KEY_INFO_WPA_ENABLED) {
 261                 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
 262         }
 263         if (pkey->flags & KEY_INFO_WPA_UNICAST) {
 264                 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
 265         }
 266         if (pkey->flags & KEY_INFO_WPA_MCAST) {
 267                 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
 268         }
 269
 270         pkeyparamset->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
 271         pkeyparamset->keytypeid = cpu_to_le16(pkey->type);
 272         pkeyparamset->keylen = cpu_to_le16(pkey->len);
 273         memcpy(pkeyparamset->key, pkey->key, pkey->len);
 274         pkeyparamset->length = cpu_to_le16(  sizeof(pkeyparamset->keytypeid)
 275                                                 + sizeof(pkeyparamset->keyinfo)
 276                                                 + sizeof(pkeyparamset->keylen)
 277                                                 + sizeof(pkeyparamset->key));
 278         lbs_deb_leave(LBS_DEB_CMD);
 279 }
 280
 281 static int wlan_cmd_802_11_key_material(wlan_private * priv,
 282                                         struct cmd_ds_command *cmd,
 283                                         u16 cmd_action,
 284                                         u32 cmd_oid, void *pdata_buf)
 285 {
 286         struct cmd_ds_802_11_key_material *pkeymaterial =
 287             &cmd->params.keymaterial;
 288         struct assoc_request * assoc_req = pdata_buf;
 289         int ret = 0;
 290         int index = 0;
 291
 292         lbs_deb_enter(LBS_DEB_CMD);
 293
 294         cmd->command = cpu_to_le16(CMD_802_11_KEY_MATERIAL);
 295         pkeymaterial->action = cpu_to_le16(cmd_action);
 296
 297         if (cmd_action == CMD_ACT_GET) {
 298                 cmd->size = cpu_to_le16(S_DS_GEN + sizeof (pkeymaterial->action));
 299                 ret = 0;
 300                 goto done;
 301         }
 302
 303         memset(&pkeymaterial->keyParamSet, 0, sizeof(pkeymaterial->keyParamSet));
 304
 305         if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
 306                 set_one_wpa_key(&pkeymaterial->keyParamSet[index],
 307                                 &assoc_req->wpa_unicast_key);
 308                 index++;
 309         }
 310
 311         if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
 312                 set_one_wpa_key(&pkeymaterial->keyParamSet[index],
 313                                 &assoc_req->wpa_mcast_key);
 314                 index++;
 315         }
 316
 317         cmd->size = cpu_to_le16(  S_DS_GEN
 318                                 + sizeof (pkeymaterial->action)
 319                                 + (index * sizeof(struct MrvlIEtype_keyParamSet)));
 320
 321         ret = 0;
 322
 323 done:
 324         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 325         return ret;
 326 }
 327
 328 static int wlan_cmd_802_11_reset(wlan_private * priv,
 329                                  struct cmd_ds_command *cmd, int cmd_action)
 330 {
 331         struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
 332
 333         lbs_deb_enter(LBS_DEB_CMD);
 334
 335         cmd->command = cpu_to_le16(CMD_802_11_RESET);
 336         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
 337         reset->action = cpu_to_le16(cmd_action);
 338
 339         lbs_deb_leave(LBS_DEB_CMD);
 340         return 0;
 341 }
 342
 343 static int wlan_cmd_802_11_get_log(wlan_private * priv,
 344                                    struct cmd_ds_command *cmd)
 345 {
 346         lbs_deb_enter(LBS_DEB_CMD);
 347         cmd->command = cpu_to_le16(CMD_802_11_GET_LOG);
 348         cmd->size =
 349                 cpu_to_le16(sizeof(struct cmd_ds_802_11_get_log) + S_DS_GEN);
 350
 351         lbs_deb_leave(LBS_DEB_CMD);
 352         return 0;
 353 }
 354
 355 static int wlan_cmd_802_11_get_stat(wlan_private * priv,
 356                                     struct cmd_ds_command *cmd)
 357 {
 358         lbs_deb_enter(LBS_DEB_CMD);
 359         cmd->command = cpu_to_le16(CMD_802_11_GET_STAT);
 360         cmd->size =
 361             cpu_to_le16(sizeof(struct cmd_ds_802_11_get_stat) + S_DS_GEN);
 362
 363         lbs_deb_leave(LBS_DEB_CMD);
 364         return 0;
 365 }
 366
 367 static int wlan_cmd_802_11_snmp_mib(wlan_private * priv,
 368                                     struct cmd_ds_command *cmd,
 369                                     int cmd_action,
 370                                     int cmd_oid, void *pdata_buf)
 371 {
 372         struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
 373         wlan_adapter *adapter = priv->adapter;
 374         u8 ucTemp;
 375
 376         lbs_deb_enter(LBS_DEB_CMD);
 377
 378         lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
 379
 380         cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
 381         cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
 382
 383         switch (cmd_oid) {
 384         case OID_802_11_INFRASTRUCTURE_MODE:
 385         {
 386                 u8 mode = (u8) (size_t) pdata_buf;
 387                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 388                 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
 389                 pSNMPMIB->bufsize = sizeof(u8);
 390                 if (mode == IW_MODE_ADHOC) {
 391                         ucTemp = SNMP_MIB_VALUE_ADHOC;
 392                 } else {
 393                         /* Infra and Auto modes */
 394                         ucTemp = SNMP_MIB_VALUE_INFRA;
 395                 }
 396
 397                 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
 398
 399                 break;
 400         }
 401
 402         case OID_802_11D_ENABLE:
 403                 {
 404                         u32 ulTemp;
 405
 406                         pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
 407
 408                         if (cmd_action == CMD_ACT_SET) {
 409                                 pSNMPMIB->querytype = CMD_ACT_SET;
 410                                 pSNMPMIB->bufsize = sizeof(u16);
 411                                 ulTemp = *(u32 *)pdata_buf;
 412                                 *((__le16 *)(pSNMPMIB->value)) =
 413                                     cpu_to_le16((u16) ulTemp);
 414                         }
 415                         break;
 416                 }
 417
 418         case OID_802_11_FRAGMENTATION_THRESHOLD:
 419                 {
 420                         u32 ulTemp;
 421
 422                         pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
 423
 424                         if (cmd_action == CMD_ACT_GET) {
 425                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 426                         } else if (cmd_action == CMD_ACT_SET) {
 427                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 428                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 429                                 ulTemp = *((u32 *) pdata_buf);
 430                                 *((__le16 *)(pSNMPMIB->value)) =
 431                                     cpu_to_le16((u16) ulTemp);
 432
 433                         }
 434
 435                         break;
 436                 }
 437
 438         case OID_802_11_RTS_THRESHOLD:
 439                 {
 440
 441                         u32 ulTemp;
 442                         pSNMPMIB->oid = le16_to_cpu((u16) RTSTHRESH_I);
 443
 444                         if (cmd_action == CMD_ACT_GET) {
 445                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 446                         } else if (cmd_action == CMD_ACT_SET) {
 447                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 448                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 449                                 ulTemp = *((u32 *)pdata_buf);
 450                                 *(__le16 *)(pSNMPMIB->value) =
 451                                     cpu_to_le16((u16) ulTemp);
 452
 453                         }
 454                         break;
 455                 }
 456         case OID_802_11_TX_RETRYCOUNT:
 457                 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
 458
 459                 if (cmd_action == CMD_ACT_GET) {
 460                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 461                 } else if (cmd_action == CMD_ACT_SET) {
 462                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 463                         pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 464                         *((__le16 *)(pSNMPMIB->value)) =
 465                             cpu_to_le16((u16) adapter->txretrycount);
 466                 }
 467
 468                 break;
 469         default:
 470                 break;
 471         }
 472
 473         lbs_deb_cmd(
 474                "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
 475                le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
 476                le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
 477
 478         lbs_deb_cmd(
 479                "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
 480                le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
 481                le16_to_cpu(pSNMPMIB->bufsize),
 482                le16_to_cpu(*(__le16 *) pSNMPMIB->value));
 483
 484         lbs_deb_leave(LBS_DEB_CMD);
 485         return 0;
 486 }
 487
 488 static int wlan_cmd_802_11_radio_control(wlan_private * priv,
 489                                          struct cmd_ds_command *cmd,
 490                                          int cmd_action)
 491 {
 492         wlan_adapter *adapter = priv->adapter;
 493         struct cmd_ds_802_11_radio_control *pradiocontrol = &cmd->params.radio;
 494
 495         lbs_deb_enter(LBS_DEB_CMD);
 496
 497         cmd->size =
 498             cpu_to_le16((sizeof(struct cmd_ds_802_11_radio_control)) +
 499                              S_DS_GEN);
 500         cmd->command = cpu_to_le16(CMD_802_11_RADIO_CONTROL);
 501
 502         pradiocontrol->action = cpu_to_le16(cmd_action);
 503
 504         switch (adapter->preamble) {
 505         case CMD_TYPE_SHORT_PREAMBLE:
 506                 pradiocontrol->control = cpu_to_le16(SET_SHORT_PREAMBLE);
 507                 break;
 508
 509         case CMD_TYPE_LONG_PREAMBLE:
 510                 pradiocontrol->control = cpu_to_le16(SET_LONG_PREAMBLE);
 511                 break;
 512
 513         case CMD_TYPE_AUTO_PREAMBLE:
 514         default:
 515                 pradiocontrol->control = cpu_to_le16(SET_AUTO_PREAMBLE);
 516                 break;
 517         }
 518
 519         if (adapter->radioon)
 520                 pradiocontrol->control |= cpu_to_le16(TURN_ON_RF);
 521         else
 522                 pradiocontrol->control &= cpu_to_le16(~TURN_ON_RF);
 523
 524         lbs_deb_leave(LBS_DEB_CMD);
 525         return 0;
 526 }
 527
 528 static int wlan_cmd_802_11_rf_tx_power(wlan_private * priv,
 529                                        struct cmd_ds_command *cmd,
 530                                        u16 cmd_action, void *pdata_buf)
 531 {
 532
 533         struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
 534
 535         lbs_deb_enter(LBS_DEB_CMD);
 536
 537         cmd->size =
 538             cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
 539         cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
 540         prtp->action = cpu_to_le16(cmd_action);
 541
 542         lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
 543                     le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
 544                     le16_to_cpu(prtp->action));
 545
 546         switch (cmd_action) {
 547         case CMD_ACT_TX_POWER_OPT_GET:
 548                 prtp->action = cpu_to_le16(CMD_ACT_GET);
 549                 prtp->currentlevel = 0;
 550                 break;
 551
 552         case CMD_ACT_TX_POWER_OPT_SET_HIGH:
 553                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 554                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
 555                 break;
 556
 557         case CMD_ACT_TX_POWER_OPT_SET_MID:
 558                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 559                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
 560                 break;
 561
 562         case CMD_ACT_TX_POWER_OPT_SET_LOW:
 563                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 564                 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
 565                 break;
 566         }
 567
 568         lbs_deb_leave(LBS_DEB_CMD);
 569         return 0;
 570 }
 571
 572 static int wlan_cmd_802_11_rate_adapt_rateset(wlan_private * priv,
 573                                               struct cmd_ds_command *cmd,
 574                                               u16 cmd_action)
 575 {
 576         struct cmd_ds_802_11_rate_adapt_rateset
 577         *rateadapt = &cmd->params.rateset;
 578         wlan_adapter *adapter = priv->adapter;
 579
 580         lbs_deb_enter(LBS_DEB_CMD);
 581         cmd->size =
 582             cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
 583                              + S_DS_GEN);
 584         cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
 585
 586         rateadapt->action = cpu_to_le16(cmd_action);
 587         rateadapt->enablehwauto = cpu_to_le16(adapter->enablehwauto);
 588         rateadapt->bitmap = cpu_to_le16(adapter->ratebitmap);
 589
 590         lbs_deb_leave(LBS_DEB_CMD);
 591         return 0;
 592 }
 593
 594 static int wlan_cmd_802_11_data_rate(wlan_private * priv,
 595                                      struct cmd_ds_command *cmd,
 596                                      u16 cmd_action)
 597 {
 598         struct cmd_ds_802_11_data_rate *pdatarate = &cmd->params.drate;
 599         wlan_adapter *adapter = priv->adapter;
 600
 601         lbs_deb_enter(LBS_DEB_CMD);
 602
 603         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_data_rate) +
 604                              S_DS_GEN);
 605         cmd->command = cpu_to_le16(CMD_802_11_DATA_RATE);
 606         memset(pdatarate, 0, sizeof(struct cmd_ds_802_11_data_rate));
 607         pdatarate->action = cpu_to_le16(cmd_action);
 608
 609         if (cmd_action == CMD_ACT_SET_TX_FIX_RATE) {
 610                 pdatarate->rates[0] = libertas_data_rate_to_fw_index(adapter->cur_rate);
 611                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n",
 612                        adapter->cur_rate);
 613         } else if (cmd_action == CMD_ACT_SET_TX_AUTO) {
 614                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 615         }
 616
 617         lbs_deb_leave(LBS_DEB_CMD);
 618         return 0;
 619 }
 620
 621 static int wlan_cmd_mac_multicast_adr(wlan_private * priv,
 622                                       struct cmd_ds_command *cmd,
 623                                       u16 cmd_action)
 624 {
 625         struct cmd_ds_mac_multicast_adr *pMCastAdr = &cmd->params.madr;
 626         wlan_adapter *adapter = priv->adapter;
 627
 628         lbs_deb_enter(LBS_DEB_CMD);
 629         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_multicast_adr) +
 630                              S_DS_GEN);
 631         cmd->command = cpu_to_le16(CMD_MAC_MULTICAST_ADR);
 632
 633         lbs_deb_cmd("MULTICAST_ADR: setting %d addresses\n", pMCastAdr->nr_of_adrs);
 634         pMCastAdr->action = cpu_to_le16(cmd_action);
 635         pMCastAdr->nr_of_adrs =
 636             cpu_to_le16((u16) adapter->nr_of_multicastmacaddr);
 637         memcpy(pMCastAdr->maclist, adapter->multicastlist,
 638                adapter->nr_of_multicastmacaddr * ETH_ALEN);
 639
 640         lbs_deb_leave(LBS_DEB_CMD);
 641         return 0;
 642 }
 643
 644 static int wlan_cmd_802_11_rf_channel(wlan_private * priv,
 645                                       struct cmd_ds_command *cmd,
 646                                       int option, void *pdata_buf)
 647 {
 648         struct cmd_ds_802_11_rf_channel *rfchan = &cmd->params.rfchannel;
 649
 650         lbs_deb_enter(LBS_DEB_CMD);
 651         cmd->command = cpu_to_le16(CMD_802_11_RF_CHANNEL);
 652         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rf_channel) +
 653                                 S_DS_GEN);
 654
 655         if (option == CMD_OPT_802_11_RF_CHANNEL_SET) {
 656                 rfchan->currentchannel = cpu_to_le16(*((u16 *) pdata_buf));
 657         }
 658
 659         rfchan->action = cpu_to_le16(option);
 660
 661         lbs_deb_leave(LBS_DEB_CMD);
 662         return 0;
 663 }
 664
 665 static int wlan_cmd_802_11_rssi(wlan_private * priv,
 666                                 struct cmd_ds_command *cmd)
 667 {
 668         wlan_adapter *adapter = priv->adapter;
 669
 670         lbs_deb_enter(LBS_DEB_CMD);
 671         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 672         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 673         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 674
 675         /* reset Beacon SNR/NF/RSSI values */
 676         adapter->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 677         adapter->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 678         adapter->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 679         adapter->NF[TYPE_BEACON][TYPE_AVG] = 0;
 680         adapter->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 681         adapter->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 682
 683         lbs_deb_leave(LBS_DEB_CMD);
 684         return 0;
 685 }
 686
 687 static int wlan_cmd_reg_access(wlan_private * priv,
 688                                struct cmd_ds_command *cmdptr,
 689                                u8 cmd_action, void *pdata_buf)
 690 {
 691         struct wlan_offset_value *offval;
 692
 693         lbs_deb_enter(LBS_DEB_CMD);
 694
 695         offval = (struct wlan_offset_value *)pdata_buf;
 696
 697         switch (cmdptr->command) {
 698         case CMD_MAC_REG_ACCESS:
 699                 {
 700                         struct cmd_ds_mac_reg_access *macreg;
 701
 702                         cmdptr->size =
 703                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 704                                         + S_DS_GEN);
 705                         macreg =
 706                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 707                             macreg;
 708
 709                         macreg->action = cpu_to_le16(cmd_action);
 710                         macreg->offset = cpu_to_le16((u16) offval->offset);
 711                         macreg->value = cpu_to_le32(offval->value);
 712
 713                         break;
 714                 }
 715
 716         case CMD_BBP_REG_ACCESS:
 717                 {
 718                         struct cmd_ds_bbp_reg_access *bbpreg;
 719
 720                         cmdptr->size =
 721                             cpu_to_le16(sizeof
 722                                              (struct cmd_ds_bbp_reg_access)
 723                                              + S_DS_GEN);
 724                         bbpreg =
 725                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 726                             bbpreg;
 727
 728                         bbpreg->action = cpu_to_le16(cmd_action);
 729                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 730                         bbpreg->value = (u8) offval->value;
 731
 732                         break;
 733                 }
 734
 735         case CMD_RF_REG_ACCESS:
 736                 {
 737                         struct cmd_ds_rf_reg_access *rfreg;
 738
 739                         cmdptr->size =
 740                             cpu_to_le16(sizeof
 741                                              (struct cmd_ds_rf_reg_access) +
 742                                              S_DS_GEN);
 743                         rfreg =
 744                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 745                             rfreg;
 746
 747                         rfreg->action = cpu_to_le16(cmd_action);
 748                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 749                         rfreg->value = (u8) offval->value;
 750
 751                         break;
 752                 }
 753
 754         default:
 755                 break;
 756         }
 757
 758         lbs_deb_leave(LBS_DEB_CMD);
 759         return 0;
 760 }
 761
 762 static int wlan_cmd_802_11_mac_address(wlan_private * priv,
 763                                        struct cmd_ds_command *cmd,
 764                                        u16 cmd_action)
 765 {
 766         wlan_adapter *adapter = priv->adapter;
 767
 768         lbs_deb_enter(LBS_DEB_CMD);
 769         cmd->command = cpu_to_le16(CMD_802_11_MAC_ADDRESS);
 770         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_mac_address) +
 771                              S_DS_GEN);
 772         cmd->result = 0;
 773
 774         cmd->params.macadd.action = cpu_to_le16(cmd_action);
 775
 776         if (cmd_action == CMD_ACT_SET) {
 777                 memcpy(cmd->params.macadd.macadd,
 778                        adapter->current_addr, ETH_ALEN);
 779                 lbs_deb_hex(LBS_DEB_CMD, "SET_CMD: MAC addr", adapter->current_addr, 6);
 780         }
 781
 782         lbs_deb_leave(LBS_DEB_CMD);
 783         return 0;
 784 }
 785
 786 static int wlan_cmd_802_11_eeprom_access(wlan_private * priv,
 787                                          struct cmd_ds_command *cmd,
 788                                          int cmd_action, void *pdata_buf)
 789 {
 790         struct wlan_ioctl_regrdwr *ea = pdata_buf;
 791
 792         lbs_deb_enter(LBS_DEB_CMD);
 793
 794         cmd->command = cpu_to_le16(CMD_802_11_EEPROM_ACCESS);
 795         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) +
 796                                 S_DS_GEN);
 797         cmd->result = 0;
 798
 799         cmd->params.rdeeprom.action = cpu_to_le16(ea->action);
 800         cmd->params.rdeeprom.offset = cpu_to_le16(ea->offset);
 801         cmd->params.rdeeprom.bytecount = cpu_to_le16(ea->NOB);
 802         cmd->params.rdeeprom.value = 0;
 803
 804         lbs_deb_leave(LBS_DEB_CMD);
 805         return 0;
 806 }
 807
 808 static int wlan_cmd_bt_access(wlan_private * priv,
 809                                struct cmd_ds_command *cmd,
 810                                u16 cmd_action, void *pdata_buf)
 811 {
 812         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 813         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 814
 815         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 816         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 817         cmd->result = 0;
 818         bt_access->action = cpu_to_le16(cmd_action);
 819
 820         switch (cmd_action) {
 821         case CMD_ACT_BT_ACCESS_ADD:
 822                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 823                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 824                 break;
 825         case CMD_ACT_BT_ACCESS_DEL:
 826                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 827                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 828                 break;
 829         case CMD_ACT_BT_ACCESS_LIST:
 830                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 831                 break;
 832         case CMD_ACT_BT_ACCESS_RESET:
 833                 break;
 834         case CMD_ACT_BT_ACCESS_SET_INVERT:
 835                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 836                 break;
 837         case CMD_ACT_BT_ACCESS_GET_INVERT:
 838                 break;
 839         default:
 840                 break;
 841         }
 842         lbs_deb_leave(LBS_DEB_CMD);
 843         return 0;
 844 }
 845
 846 static int wlan_cmd_fwt_access(wlan_private * priv,
 847                                struct cmd_ds_command *cmd,
 848                                u16 cmd_action, void *pdata_buf)
 849 {
 850         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
 851         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 852
 853         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
 854         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
 855         cmd->result = 0;
 856
 857         if (pdata_buf)
 858                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
 859         else
 860                 memset(fwt_access, 0, sizeof(*fwt_access));
 861
 862         fwt_access->action = cpu_to_le16(cmd_action);
 863
 864         lbs_deb_leave(LBS_DEB_CMD);
 865         return 0;
 866 }
 867
 868 static int wlan_cmd_mesh_access(wlan_private * priv,
 869                                 struct cmd_ds_command *cmd,
 870                                 u16 cmd_action, void *pdata_buf)
 871 {
 872         struct cmd_ds_mesh_access *mesh_access = &cmd->params.mesh;
 873         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 874
 875         cmd->command = cpu_to_le16(CMD_MESH_ACCESS);
 876         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mesh_access) + S_DS_GEN);
 877         cmd->result = 0;
 878
 879         if (pdata_buf)
 880                 memcpy(mesh_access, pdata_buf, sizeof(*mesh_access));
 881         else
 882                 memset(mesh_access, 0, sizeof(*mesh_access));
 883
 884         mesh_access->action = cpu_to_le16(cmd_action);
 885
 886         lbs_deb_leave(LBS_DEB_CMD);
 887         return 0;
 888 }
 889
 890 void libertas_queue_cmd(wlan_adapter * adapter, struct cmd_ctrl_node *cmdnode, u8 addtail)
 891 {
 892         unsigned long flags;
 893         struct cmd_ds_command *cmdptr;
 894
 895         lbs_deb_enter(LBS_DEB_HOST);
 896
 897         if (!cmdnode) {
 898                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
 899                 goto done;
 900         }
 901
 902         cmdptr = (struct cmd_ds_command *)cmdnode->bufvirtualaddr;
 903         if (!cmdptr) {
 904                 lbs_deb_host("QUEUE_CMD: cmdptr is NULL\n");
 905                 goto done;
 906         }
 907
 908         /* Exit_PS command needs to be queued in the header always. */
 909         if (cmdptr->command == CMD_802_11_PS_MODE) {
 910                 struct cmd_ds_802_11_ps_mode *psm = &cmdptr->params.psmode;
 911                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
 912                         if (adapter->psstate != PS_STATE_FULL_POWER)
 913                                 addtail = 0;
 914                 }
 915         }
 916
 917         spin_lock_irqsave(&adapter->driver_lock, flags);
 918
 919         if (addtail)
 920                 list_add_tail((struct list_head *)cmdnode,
 921                               &adapter->cmdpendingq);
 922         else
 923                 list_add((struct list_head *)cmdnode, &adapter->cmdpendingq);
 924
 925         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 926
 927         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
 928                le16_to_cpu(((struct cmd_ds_gen*)cmdnode->bufvirtualaddr)->command));
 929
 930 done:
 931         lbs_deb_leave(LBS_DEB_HOST);
 932 }
 933
 934 /*
 935  * TODO: Fix the issue when DownloadcommandToStation is being called the
 936  * second time when the command times out. All the cmdptr->xxx are in little
 937  * endian and therefore all the comparissions will fail.
 938  * For now - we are not performing the endian conversion the second time - but
 939  * for PS and DEEP_SLEEP we need to worry
 940  */
 941 static int DownloadcommandToStation(wlan_private * priv,
 942                                     struct cmd_ctrl_node *cmdnode)
 943 {
 944         unsigned long flags;
 945         struct cmd_ds_command *cmdptr;
 946         wlan_adapter *adapter = priv->adapter;
 947         int ret = 0;
 948         u16 cmdsize;
 949         u16 command;
 950
 951         lbs_deb_enter(LBS_DEB_HOST);
 952
 953         if (!adapter || !cmdnode) {
 954                 lbs_deb_host("DNLD_CMD: adapter or cmdmode is NULL\n");
 955                 if (cmdnode) {
 956                         spin_lock_irqsave(&adapter->driver_lock, flags);
 957                         __libertas_cleanup_and_insert_cmd(priv, cmdnode);
 958                         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 959                 }
 960                 ret = -1;
 961                 goto done;
 962         }
 963
 964         cmdptr = (struct cmd_ds_command *)cmdnode->bufvirtualaddr;
 965
 966         spin_lock_irqsave(&adapter->driver_lock, flags);
 967         if (!cmdptr || !cmdptr->size) {
 968                 lbs_deb_host("DNLD_CMD: cmdptr is NULL or zero\n");
 969                 __libertas_cleanup_and_insert_cmd(priv, cmdnode);
 970                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 971                 ret = -1;
 972                 goto done;
 973         }
 974
 975         adapter->cur_cmd = cmdnode;
 976         adapter->cur_cmd_retcode = 0;
 977         spin_unlock_irqrestore(&adapter->driver_lock, flags);
 978
 979         cmdsize = cmdptr->size;
 980         command = cpu_to_le16(cmdptr->command);
 981
 982         lbs_deb_host("DNLD_CMD: command 0x%04x, size %d, jiffies %lu\n",
 983                     command, le16_to_cpu(cmdptr->size), jiffies);
 984         lbs_deb_hex(LBS_DEB_HOST, "DNLD_CMD", cmdnode->bufvirtualaddr, cmdsize);
 985
 986         cmdnode->cmdwaitqwoken = 0;
 987         cmdsize = cpu_to_le16(cmdsize);
 988
 989         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmdptr, cmdsize);
 990
 991         if (ret != 0) {
 992                 lbs_deb_host("DNLD_CMD: hw_host_to_card failed\n");
 993                 spin_lock_irqsave(&adapter->driver_lock, flags);
 994                 __libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
 995                 adapter->cur_cmd = NULL;
 996                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
 997                 ret = -1;
 998                 goto done;
 999         }
1000
1001         lbs_deb_cmd("DNLD_CMD: sent command 0x%04x, jiffies %lu\n", command, jiffies);
1002
1003         /* Setup the timer after transmit command */
1004         if (command == CMD_802_11_SCAN || command == CMD_802_11_AUTHENTICATE
1005             || command == CMD_802_11_ASSOCIATE)
1006                 mod_timer(&adapter->command_timer, jiffies + (10*HZ));
1007         else
1008                 mod_timer(&adapter->command_timer, jiffies + (5*HZ));
1009
1010         ret = 0;
1011
1012 done:
1013         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1014         return ret;
1015 }
1016
1017 static int wlan_cmd_mac_control(wlan_private * priv,
1018                                 struct cmd_ds_command *cmd)
1019 {
1020         struct cmd_ds_mac_control *mac = &cmd->params.macctrl;
1021
1022         lbs_deb_enter(LBS_DEB_CMD);
1023
1024         cmd->command = cpu_to_le16(CMD_MAC_CONTROL);
1025         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_control) + S_DS_GEN);
1026         mac->action = cpu_to_le16(priv->adapter->currentpacketfilter);
1027
1028         lbs_deb_cmd("MAC_CONTROL: action 0x%x, size %d\n",
1029                     le16_to_cpu(mac->action), le16_to_cpu(cmd->size));
1030
1031         lbs_deb_leave(LBS_DEB_CMD);
1032         return 0;
1033 }
1034
1035 /**
1036  *  This function inserts command node to cmdfreeq
1037  *  after cleans it. Requires adapter->driver_lock held.
1038  */
1039 void __libertas_cleanup_and_insert_cmd(wlan_private * priv, struct cmd_ctrl_node *ptempcmd)
1040 {
1041         wlan_adapter *adapter = priv->adapter;
1042
1043         if (!ptempcmd)
1044                 return;
1045
1046         cleanup_cmdnode(ptempcmd);
1047         list_add_tail((struct list_head *)ptempcmd, &adapter->cmdfreeq);
1048 }
1049
1050 static void libertas_cleanup_and_insert_cmd(wlan_private * priv, struct cmd_ctrl_node *ptempcmd)
1051 {
1052         unsigned long flags;
1053
1054         spin_lock_irqsave(&priv->adapter->driver_lock, flags);
1055         __libertas_cleanup_and_insert_cmd(priv, ptempcmd);
1056         spin_unlock_irqrestore(&priv->adapter->driver_lock, flags);
1057 }
1058
1059 int libertas_set_radio_control(wlan_private * priv)
1060 {
1061         int ret = 0;
1062
1063         lbs_deb_enter(LBS_DEB_CMD);
1064
1065         ret = libertas_prepare_and_send_command(priv,
1066                                     CMD_802_11_RADIO_CONTROL,
1067                                     CMD_ACT_SET,
1068                                     CMD_OPTION_WAITFORRSP, 0, NULL);
1069
1070         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n",
1071                priv->adapter->radioon, priv->adapter->preamble);
1072
1073         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1074         return ret;
1075 }
1076
1077 int libertas_set_mac_packet_filter(wlan_private * priv)
1078 {
1079         int ret = 0;
1080
1081         lbs_deb_enter(LBS_DEB_CMD);
1082
1083         /* Send MAC control command to station */
1084         ret = libertas_prepare_and_send_command(priv,
1085                                     CMD_MAC_CONTROL, 0, 0, 0, NULL);
1086
1087         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1088         return ret;
1089 }
1090
1091 /**
1092  *  @brief This function prepare the command before send to firmware.
1093  *
1094  *  @param priv         A pointer to wlan_private structure
1095  *  @param cmd_no       command number
1096  *  @param cmd_action   command action: GET or SET
1097  *  @param wait_option  wait option: wait response or not
1098  *  @param cmd_oid      cmd oid: treated as sub command
1099  *  @param pdata_buf    A pointer to informaion buffer
1100  *  @return             0 or -1
1101  */
1102 int libertas_prepare_and_send_command(wlan_private * priv,
1103                           u16 cmd_no,
1104                           u16 cmd_action,
1105                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1106 {
1107         int ret = 0;
1108         wlan_adapter *adapter = priv->adapter;
1109         struct cmd_ctrl_node *cmdnode;
1110         struct cmd_ds_command *cmdptr;
1111         unsigned long flags;
1112
1113         lbs_deb_enter(LBS_DEB_HOST);
1114
1115         if (!adapter) {
1116                 lbs_deb_host("PREP_CMD: adapter is NULL\n");
1117                 ret = -1;
1118                 goto done;
1119         }
1120
1121         if (adapter->surpriseremoved) {
1122                 lbs_deb_host("PREP_CMD: card removed\n");
1123                 ret = -1;
1124                 goto done;
1125         }
1126
1127         cmdnode = libertas_get_free_cmd_ctrl_node(priv);
1128
1129         if (cmdnode == NULL) {
1130                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1131
1132                 /* Wake up main thread to execute next command */
1133                 wake_up_interruptible(&priv->waitq);
1134                 ret = -1;
1135                 goto done;
1136         }
1137
1138         libertas_set_cmd_ctrl_node(priv, cmdnode, cmd_oid, wait_option, pdata_buf);
1139
1140         cmdptr = (struct cmd_ds_command *)cmdnode->bufvirtualaddr;
1141
1142         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1143
1144         if (!cmdptr) {
1145                 lbs_deb_host("PREP_CMD: cmdptr is NULL\n");
1146                 libertas_cleanup_and_insert_cmd(priv, cmdnode);
1147                 ret = -1;
1148                 goto done;
1149         }
1150
1151         /* Set sequence number, command and INT option */
1152         adapter->seqnum++;
1153         cmdptr->seqnum = cpu_to_le16(adapter->seqnum);
1154
1155         cmdptr->command = cpu_to_le16(cmd_no);
1156         cmdptr->result = 0;
1157
1158         switch (cmd_no) {
1159         case CMD_GET_HW_SPEC:
1160                 ret = wlan_cmd_hw_spec(priv, cmdptr);
1161                 break;
1162         case CMD_802_11_PS_MODE:
1163                 ret = wlan_cmd_802_11_ps_mode(priv, cmdptr, cmd_action);
1164                 break;
1165
1166         case CMD_802_11_SCAN:
1167                 ret = libertas_cmd_80211_scan(priv, cmdptr, pdata_buf);
1168                 break;
1169
1170         case CMD_MAC_CONTROL:
1171                 ret = wlan_cmd_mac_control(priv, cmdptr);
1172                 break;
1173
1174         case CMD_802_11_ASSOCIATE:
1175         case CMD_802_11_REASSOCIATE:
1176                 ret = libertas_cmd_80211_associate(priv, cmdptr, pdata_buf);
1177                 break;
1178
1179         case CMD_802_11_DEAUTHENTICATE:
1180                 ret = libertas_cmd_80211_deauthenticate(priv, cmdptr);
1181                 break;
1182
1183         case CMD_802_11_SET_WEP:
1184                 ret = wlan_cmd_802_11_set_wep(priv, cmdptr, cmd_action, pdata_buf);
1185                 break;
1186
1187         case CMD_802_11_AD_HOC_START:
1188                 ret = libertas_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1189                 break;
1190         case CMD_CODE_DNLD:
1191                 break;
1192
1193         case CMD_802_11_RESET:
1194                 ret = wlan_cmd_802_11_reset(priv, cmdptr, cmd_action);
1195                 break;
1196
1197         case CMD_802_11_GET_LOG:
1198                 ret = wlan_cmd_802_11_get_log(priv, cmdptr);
1199                 break;
1200
1201         case CMD_802_11_AUTHENTICATE:
1202                 ret = libertas_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1203                 break;
1204
1205         case CMD_802_11_GET_STAT:
1206                 ret = wlan_cmd_802_11_get_stat(priv, cmdptr);
1207                 break;
1208
1209         case CMD_802_11_SNMP_MIB:
1210                 ret = wlan_cmd_802_11_snmp_mib(priv, cmdptr,
1211                                                cmd_action, cmd_oid, pdata_buf);
1212                 break;
1213
1214         case CMD_MAC_REG_ACCESS:
1215         case CMD_BBP_REG_ACCESS:
1216         case CMD_RF_REG_ACCESS:
1217                 ret = wlan_cmd_reg_access(priv, cmdptr, cmd_action, pdata_buf);
1218                 break;
1219
1220         case CMD_802_11_RF_CHANNEL:
1221                 ret = wlan_cmd_802_11_rf_channel(priv, cmdptr,
1222                                                  cmd_action, pdata_buf);
1223                 break;
1224
1225         case CMD_802_11_RF_TX_POWER:
1226                 ret = wlan_cmd_802_11_rf_tx_power(priv, cmdptr,
1227                                                   cmd_action, pdata_buf);
1228                 break;
1229
1230         case CMD_802_11_RADIO_CONTROL:
1231                 ret = wlan_cmd_802_11_radio_control(priv, cmdptr, cmd_action);
1232                 break;
1233
1234         case CMD_802_11_DATA_RATE:
1235                 ret = wlan_cmd_802_11_data_rate(priv, cmdptr, cmd_action);
1236                 break;
1237         case CMD_802_11_RATE_ADAPT_RATESET:
1238                 ret = wlan_cmd_802_11_rate_adapt_rateset(priv,
1239                                                          cmdptr, cmd_action);
1240                 break;
1241
1242         case CMD_MAC_MULTICAST_ADR:
1243                 ret = wlan_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1244                 break;
1245
1246         case CMD_802_11_AD_HOC_JOIN:
1247                 ret = libertas_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1248                 break;
1249
1250         case CMD_802_11_RSSI:
1251                 ret = wlan_cmd_802_11_rssi(priv, cmdptr);
1252                 break;
1253
1254         case CMD_802_11_AD_HOC_STOP:
1255                 ret = libertas_cmd_80211_ad_hoc_stop(priv, cmdptr);
1256                 break;
1257
1258         case CMD_802_11_ENABLE_RSN:
1259                 ret = wlan_cmd_802_11_enable_rsn(priv, cmdptr, cmd_action,
1260                                 pdata_buf);
1261                 break;
1262
1263         case CMD_802_11_KEY_MATERIAL:
1264                 ret = wlan_cmd_802_11_key_material(priv, cmdptr, cmd_action,
1265                                 cmd_oid, pdata_buf);
1266                 break;
1267
1268         case CMD_802_11_PAIRWISE_TSC:
1269                 break;
1270         case CMD_802_11_GROUP_TSC:
1271                 break;
1272
1273         case CMD_802_11_MAC_ADDRESS:
1274                 ret = wlan_cmd_802_11_mac_address(priv, cmdptr, cmd_action);
1275                 break;
1276
1277         case CMD_802_11_EEPROM_ACCESS:
1278                 ret = wlan_cmd_802_11_eeprom_access(priv, cmdptr,
1279                                                     cmd_action, pdata_buf);
1280                 break;
1281
1282         case CMD_802_11_SET_AFC:
1283         case CMD_802_11_GET_AFC:
1284
1285                 cmdptr->command = cpu_to_le16(cmd_no);
1286                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1287                                            S_DS_GEN);
1288
1289                 memmove(&cmdptr->params.afc,
1290                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1291
1292                 ret = 0;
1293                 goto done;
1294
1295         case CMD_802_11D_DOMAIN_INFO:
1296                 ret = libertas_cmd_802_11d_domain_info(priv, cmdptr,
1297                                                    cmd_no, cmd_action);
1298                 break;
1299
1300         case CMD_802_11_SLEEP_PARAMS:
1301                 ret = wlan_cmd_802_11_sleep_params(priv, cmdptr, cmd_action);
1302                 break;
1303         case CMD_802_11_INACTIVITY_TIMEOUT:
1304                 ret = wlan_cmd_802_11_inactivity_timeout(priv, cmdptr,
1305                                                          cmd_action, pdata_buf);
1306                 libertas_set_cmd_ctrl_node(priv, cmdnode, 0, 0, pdata_buf);
1307                 break;
1308
1309         case CMD_802_11_TPC_CFG:
1310                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1311                 cmdptr->size =
1312                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1313                                      S_DS_GEN);
1314
1315                 memmove(&cmdptr->params.tpccfg,
1316                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1317
1318                 ret = 0;
1319                 break;
1320         case CMD_802_11_LED_GPIO_CTRL:
1321                 {
1322                         struct mrvlietypes_ledgpio *gpio =
1323                             (struct mrvlietypes_ledgpio*)
1324                             cmdptr->params.ledgpio.data;
1325
1326                         memmove(&cmdptr->params.ledgpio,
1327                                 pdata_buf,
1328                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1329
1330                         cmdptr->command =
1331                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1332
1333 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1334                         cmdptr->size =
1335                             cpu_to_le16(gpio->header.len + S_DS_GEN +
1336                                              ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1337                         gpio->header.len = cpu_to_le16(gpio->header.len);
1338
1339                         ret = 0;
1340                         break;
1341                 }
1342         case CMD_802_11_PWR_CFG:
1343                 cmdptr->command = cpu_to_le16(CMD_802_11_PWR_CFG);
1344                 cmdptr->size =
1345                     cpu_to_le16(sizeof(struct cmd_ds_802_11_pwr_cfg) +
1346                                      S_DS_GEN);
1347                 memmove(&cmdptr->params.pwrcfg, pdata_buf,
1348                         sizeof(struct cmd_ds_802_11_pwr_cfg));
1349
1350                 ret = 0;
1351                 break;
1352         case CMD_BT_ACCESS:
1353                 ret = wlan_cmd_bt_access(priv, cmdptr, cmd_action, pdata_buf);
1354                 break;
1355
1356         case CMD_FWT_ACCESS:
1357                 ret = wlan_cmd_fwt_access(priv, cmdptr, cmd_action, pdata_buf);
1358                 break;
1359
1360         case CMD_MESH_ACCESS:
1361                 ret = wlan_cmd_mesh_access(priv, cmdptr, cmd_action, pdata_buf);
1362                 break;
1363
1364         case CMD_GET_TSF:
1365                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1366                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1367                                            S_DS_GEN);
1368                 ret = 0;
1369                 break;
1370         default:
1371                 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1372                 ret = -1;
1373                 break;
1374         }
1375
1376         /* return error, since the command preparation failed */
1377         if (ret != 0) {
1378                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1379                 libertas_cleanup_and_insert_cmd(priv, cmdnode);
1380                 ret = -1;
1381                 goto done;
1382         }
1383
1384         cmdnode->cmdwaitqwoken = 0;
1385
1386         libertas_queue_cmd(adapter, cmdnode, 1);
1387         adapter->nr_cmd_pending++;
1388         wake_up_interruptible(&priv->waitq);
1389
1390         if (wait_option & CMD_OPTION_WAITFORRSP) {
1391                 lbs_deb_host("PREP_CMD: wait for response\n");
1392                 might_sleep();
1393                 wait_event_interruptible(cmdnode->cmdwait_q,
1394                                          cmdnode->cmdwaitqwoken);
1395         }
1396
1397         spin_lock_irqsave(&adapter->driver_lock, flags);
1398         if (adapter->cur_cmd_retcode) {
1399                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1400                        adapter->cur_cmd_retcode);
1401                 adapter->cur_cmd_retcode = 0;
1402                 ret = -1;
1403         }
1404         spin_unlock_irqrestore(&adapter->driver_lock, flags);
1405
1406 done:
1407         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1408         return ret;
1409 }
1410 EXPORT_SYMBOL_GPL(libertas_prepare_and_send_command);
1411
1412 /**
1413  *  @brief This function allocates the command buffer and link
1414  *  it to command free queue.
1415  *
1416  *  @param priv         A pointer to wlan_private structure
1417  *  @return             0 or -1
1418  */
1419 int libertas_allocate_cmd_buffer(wlan_private * priv)
1420 {
1421         int ret = 0;
1422         u32 ulbufsize;
1423         u32 i;
1424         struct cmd_ctrl_node *tempcmd_array;
1425         u8 *ptempvirtualaddr;
1426         wlan_adapter *adapter = priv->adapter;
1427
1428         lbs_deb_enter(LBS_DEB_HOST);
1429
1430         /* Allocate and initialize cmdCtrlNode */
1431         ulbufsize = sizeof(struct cmd_ctrl_node) * MRVDRV_NUM_OF_CMD_BUFFER;
1432
1433         if (!(tempcmd_array = kzalloc(ulbufsize, GFP_KERNEL))) {
1434                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1435                 ret = -1;
1436                 goto done;
1437         }
1438         adapter->cmd_array = tempcmd_array;
1439
1440         /* Allocate and initialize command buffers */
1441         ulbufsize = MRVDRV_SIZE_OF_CMD_BUFFER;
1442         for (i = 0; i < MRVDRV_NUM_OF_CMD_BUFFER; i++) {
1443                 if (!(ptempvirtualaddr = kzalloc(ulbufsize, GFP_KERNEL))) {
1444                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1445                         ret = -1;
1446                         goto done;
1447                 }
1448
1449                 /* Update command buffer virtual */
1450                 tempcmd_array[i].bufvirtualaddr = ptempvirtualaddr;
1451         }
1452
1453         for (i = 0; i < MRVDRV_NUM_OF_CMD_BUFFER; i++) {
1454                 init_waitqueue_head(&tempcmd_array[i].cmdwait_q);
1455                 libertas_cleanup_and_insert_cmd(priv, &tempcmd_array[i]);
1456         }
1457
1458         ret = 0;
1459
1460 done:
1461         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1462         return ret;
1463 }
1464
1465 /**
1466  *  @brief This function frees the command buffer.
1467  *
1468  *  @param priv         A pointer to wlan_private structure
1469  *  @return             0 or -1
1470  */
1471 int libertas_free_cmd_buffer(wlan_private * priv)
1472 {
1473         u32 ulbufsize; /* Someone needs to die for this. Slowly and painfully */
1474         unsigned int i;
1475         struct cmd_ctrl_node *tempcmd_array;
1476         wlan_adapter *adapter = priv->adapter;
1477
1478         lbs_deb_enter(LBS_DEB_HOST);
1479
1480         /* need to check if cmd array is allocated or not */
1481         if (adapter->cmd_array == NULL) {
1482                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1483                 goto done;
1484         }
1485
1486         tempcmd_array = adapter->cmd_array;
1487
1488         /* Release shared memory buffers */
1489         ulbufsize = MRVDRV_SIZE_OF_CMD_BUFFER;
1490         for (i = 0; i < MRVDRV_NUM_OF_CMD_BUFFER; i++) {
1491                 if (tempcmd_array[i].bufvirtualaddr) {
1492                         kfree(tempcmd_array[i].bufvirtualaddr);
1493                         tempcmd_array[i].bufvirtualaddr = NULL;
1494                 }
1495         }
1496
1497         /* Release cmd_ctrl_node */
1498         if (adapter->cmd_array) {
1499                 kfree(adapter->cmd_array);
1500                 adapter->cmd_array = NULL;
1501         }
1502
1503 done:
1504         lbs_deb_leave(LBS_DEB_HOST);
1505         return 0;
1506 }
1507
1508 /**
1509  *  @brief This function gets a free command node if available in
1510  *  command free queue.
1511  *
1512  *  @param priv         A pointer to wlan_private structure
1513  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1514  */
1515 struct cmd_ctrl_node *libertas_get_free_cmd_ctrl_node(wlan_private * priv)
1516 {
1517         struct cmd_ctrl_node *tempnode;
1518         wlan_adapter *adapter = priv->adapter;
1519         unsigned long flags;
1520
1521         lbs_deb_enter(LBS_DEB_HOST);
1522
1523         if (!adapter)
1524                 return NULL;
1525
1526         spin_lock_irqsave(&adapter->driver_lock, flags);
1527
1528         if (!list_empty(&adapter->cmdfreeq)) {
1529                 tempnode = (struct cmd_ctrl_node *)adapter->cmdfreeq.next;
1530                 list_del((struct list_head *)tempnode);
1531         } else {
1532                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1533                 tempnode = NULL;
1534         }
1535
1536         spin_unlock_irqrestore(&adapter->driver_lock, flags);
1537
1538         if (tempnode)
1539                 cleanup_cmdnode(tempnode);
1540
1541         lbs_deb_leave(LBS_DEB_HOST);
1542         return tempnode;
1543 }
1544
1545 /**
1546  *  @brief This function cleans command node.
1547  *
1548  *  @param ptempnode    A pointer to cmdCtrlNode structure
1549  *  @return             n/a
1550  */
1551 static void cleanup_cmdnode(struct cmd_ctrl_node *ptempnode)
1552 {
1553         lbs_deb_enter(LBS_DEB_HOST);
1554
1555         if (!ptempnode)
1556                 return;
1557         ptempnode->cmdwaitqwoken = 1;
1558         wake_up_interruptible(&ptempnode->cmdwait_q);
1559         ptempnode->status = 0;
1560         ptempnode->cmd_oid = (u32) 0;
1561         ptempnode->wait_option = 0;
1562         ptempnode->pdata_buf = NULL;
1563
1564         if (ptempnode->bufvirtualaddr != NULL)
1565                 memset(ptempnode->bufvirtualaddr, 0, MRVDRV_SIZE_OF_CMD_BUFFER);
1566
1567         lbs_deb_leave(LBS_DEB_HOST);
1568 }
1569
1570 /**
1571  *  @brief This function initializes the command node.
1572  *
1573  *  @param priv         A pointer to wlan_private structure
1574  *  @param ptempnode    A pointer to cmd_ctrl_node structure
1575  *  @param cmd_oid      cmd oid: treated as sub command
1576  *  @param wait_option  wait option: wait response or not
1577  *  @param pdata_buf    A pointer to informaion buffer
1578  *  @return             0 or -1
1579  */
1580 void libertas_set_cmd_ctrl_node(wlan_private * priv,
1581                     struct cmd_ctrl_node *ptempnode,
1582                     u32 cmd_oid, u16 wait_option, void *pdata_buf)
1583 {
1584         lbs_deb_enter(LBS_DEB_HOST);
1585
1586         if (!ptempnode)
1587                 return;
1588
1589         ptempnode->cmd_oid = cmd_oid;
1590         ptempnode->wait_option = wait_option;
1591         ptempnode->pdata_buf = pdata_buf;
1592
1593         lbs_deb_leave(LBS_DEB_HOST);
1594 }
1595
1596 /**
1597  *  @brief This function executes next command in command
1598  *  pending queue. It will put fimware back to PS mode
1599  *  if applicable.
1600  *
1601  *  @param priv     A pointer to wlan_private structure
1602  *  @return        0 or -1
1603  */
1604 int libertas_execute_next_command(wlan_private * priv)
1605 {
1606         wlan_adapter *adapter = priv->adapter;
1607         struct cmd_ctrl_node *cmdnode = NULL;
1608         struct cmd_ds_command *cmdptr;
1609         unsigned long flags;
1610         int ret = 0;
1611
1612         // Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1613         // only caller to us is libertas_thread() and we get even when a
1614         // data packet is received
1615         lbs_deb_enter(LBS_DEB_THREAD);
1616
1617         spin_lock_irqsave(&adapter->driver_lock, flags);
1618
1619         if (adapter->cur_cmd) {
1620                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1621                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
1622                 ret = -1;
1623                 goto done;
1624         }
1625
1626         if (!list_empty(&adapter->cmdpendingq)) {
1627                 cmdnode = (struct cmd_ctrl_node *)
1628                     adapter->cmdpendingq.next;
1629         }
1630
1631         spin_unlock_irqrestore(&adapter->driver_lock, flags);
1632
1633         if (cmdnode) {
1634                 cmdptr = (struct cmd_ds_command *)cmdnode->bufvirtualaddr;
1635
1636                 if (is_command_allowed_in_ps(cmdptr->command)) {
1637                         if ((adapter->psstate == PS_STATE_SLEEP) ||
1638                             (adapter->psstate == PS_STATE_PRE_SLEEP)) {
1639                                 lbs_deb_host(
1640                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1641                                        le16_to_cpu(cmdptr->command),
1642                                        adapter->psstate);
1643                                 ret = -1;
1644                                 goto done;
1645                         }
1646                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1647                                "0x%04x in psstate %d\n",
1648                                     le16_to_cpu(cmdptr->command),
1649                                     adapter->psstate);
1650                 } else if (adapter->psstate != PS_STATE_FULL_POWER) {
1651                         /*
1652                          * 1. Non-PS command:
1653                          * Queue it. set needtowakeup to TRUE if current state
1654                          * is SLEEP, otherwise call libertas_ps_wakeup to send Exit_PS.
1655                          * 2. PS command but not Exit_PS:
1656                          * Ignore it.
1657                          * 3. PS command Exit_PS:
1658                          * Set needtowakeup to TRUE if current state is SLEEP,
1659                          * otherwise send this command down to firmware
1660                          * immediately.
1661                          */
1662                         if (cmdptr->command !=
1663                             cpu_to_le16(CMD_802_11_PS_MODE)) {
1664                                 /*  Prepare to send Exit PS,
1665                                  *  this non PS command will be sent later */
1666                                 if ((adapter->psstate == PS_STATE_SLEEP)
1667                                     || (adapter->psstate == PS_STATE_PRE_SLEEP)
1668                                     ) {
1669                                         /* w/ new scheme, it will not reach here.
1670                                            since it is blocked in main_thread. */
1671                                         adapter->needtowakeup = 1;
1672                                 } else
1673                                         libertas_ps_wakeup(priv, 0);
1674
1675                                 ret = 0;
1676                                 goto done;
1677                         } else {
1678                                 /*
1679                                  * PS command. Ignore it if it is not Exit_PS.
1680                                  * otherwise send it down immediately.
1681                                  */
1682                                 struct cmd_ds_802_11_ps_mode *psm =
1683                                     &cmdptr->params.psmode;
1684
1685                                 lbs_deb_host(
1686                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1687                                        psm->action);
1688                                 if (psm->action !=
1689                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1690                                         lbs_deb_host(
1691                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1692                                         list_del((struct list_head *)cmdnode);
1693                                         libertas_cleanup_and_insert_cmd(priv, cmdnode);
1694
1695                                         ret = 0;
1696                                         goto done;
1697                                 }
1698
1699                                 if ((adapter->psstate == PS_STATE_SLEEP) ||
1700                                     (adapter->psstate == PS_STATE_PRE_SLEEP)) {
1701                                         lbs_deb_host(
1702                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1703                                         list_del((struct list_head *)cmdnode);
1704                                         libertas_cleanup_and_insert_cmd(priv, cmdnode);
1705                                         adapter->needtowakeup = 1;
1706
1707                                         ret = 0;
1708                                         goto done;
1709                                 }
1710
1711                                 lbs_deb_host(
1712                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1713                         }
1714                 }
1715                 list_del((struct list_head *)cmdnode);
1716                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1717                             le16_to_cpu(cmdptr->command));
1718                 DownloadcommandToStation(priv, cmdnode);
1719         } else {
1720                 /*
1721                  * check if in power save mode, if yes, put the device back
1722                  * to PS mode
1723                  */
1724                 if ((adapter->psmode != WLAN802_11POWERMODECAM) &&
1725                     (adapter->psstate == PS_STATE_FULL_POWER) &&
1726                     (adapter->connect_status == LIBERTAS_CONNECTED)) {
1727                         if (adapter->secinfo.WPAenabled ||
1728                             adapter->secinfo.WPA2enabled) {
1729                                 /* check for valid WPA group keys */
1730                                 if (adapter->wpa_mcast_key.len ||
1731                                     adapter->wpa_unicast_key.len) {
1732                                         lbs_deb_host(
1733                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1734                                                " go back to PS_SLEEP");
1735                                         libertas_ps_sleep(priv, 0);
1736                                 }
1737                         } else {
1738                                 lbs_deb_host(
1739                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1740                                        "go back to PS_SLEEP");
1741                                 libertas_ps_sleep(priv, 0);
1742                         }
1743                 }
1744         }
1745
1746         ret = 0;
1747 done:
1748         lbs_deb_leave(LBS_DEB_THREAD);
1749         return ret;
1750 }
1751
1752 void libertas_send_iwevcustom_event(wlan_private * priv, s8 * str)
1753 {
1754         union iwreq_data iwrq;
1755         u8 buf[50];
1756
1757         lbs_deb_enter(LBS_DEB_WEXT);
1758
1759         memset(&iwrq, 0, sizeof(union iwreq_data));
1760         memset(buf, 0, sizeof(buf));
1761
1762         snprintf(buf, sizeof(buf) - 1, "%s", str);
1763
1764         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1765
1766         /* Send Event to upper layer */
1767         lbs_deb_wext("event indication string %s\n", (char *)buf);
1768         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1769         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1770
1771         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1772
1773         lbs_deb_leave(LBS_DEB_WEXT);
1774 }
1775
1776 static int sendconfirmsleep(wlan_private * priv, u8 * cmdptr, u16 size)
1777 {
1778         unsigned long flags;
1779         wlan_adapter *adapter = priv->adapter;
1780         int ret = 0;
1781
1782         lbs_deb_enter(LBS_DEB_HOST);
1783
1784         lbs_deb_host("SEND_SLEEPC_CMD: before download, cmd size %d\n",
1785                size);
1786
1787         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm command", cmdptr, size);
1788
1789         ret = priv->hw_host_to_card(priv, MVMS_CMD, cmdptr, size);
1790         priv->dnld_sent = DNLD_RES_RECEIVED;
1791
1792         spin_lock_irqsave(&adapter->driver_lock, flags);
1793         if (adapter->intcounter || adapter->currenttxskb)
1794                 lbs_deb_host("SEND_SLEEPC_CMD: intcounter %d, currenttxskb %p\n",
1795                        adapter->intcounter, adapter->currenttxskb);
1796         spin_unlock_irqrestore(&adapter->driver_lock, flags);
1797
1798         if (ret) {
1799                 lbs_pr_alert(
1800                        "SEND_SLEEPC_CMD: Host to Card failed for Confirm Sleep\n");
1801         } else {
1802                 spin_lock_irqsave(&adapter->driver_lock, flags);
1803                 if (!adapter->intcounter) {
1804                         adapter->psstate = PS_STATE_SLEEP;
1805                 } else {
1806                         lbs_deb_host("SEND_SLEEPC_CMD: after sent, intcounter %d\n",
1807                                adapter->intcounter);
1808                 }
1809                 spin_unlock_irqrestore(&adapter->driver_lock, flags);
1810
1811                 lbs_deb_host("SEND_SLEEPC_CMD: sent confirm sleep\n");
1812         }
1813
1814         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1815         return ret;
1816 }
1817
1818 void libertas_ps_sleep(wlan_private * priv, int wait_option)
1819 {
1820         lbs_deb_enter(LBS_DEB_HOST);
1821
1822         /*
1823          * PS is currently supported only in Infrastructure mode
1824          * Remove this check if it is to be supported in IBSS mode also
1825          */
1826
1827         libertas_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1828                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1829
1830         lbs_deb_leave(LBS_DEB_HOST);
1831 }
1832
1833 /**
1834  *  @brief This function sends Exit_PS command to firmware.
1835  *
1836  *  @param priv         A pointer to wlan_private structure
1837  *  @param wait_option  wait response or not
1838  *  @return             n/a
1839  */
1840 void libertas_ps_wakeup(wlan_private * priv, int wait_option)
1841 {
1842         __le32 Localpsmode;
1843
1844         lbs_deb_enter(LBS_DEB_HOST);
1845
1846         Localpsmode = cpu_to_le32(WLAN802_11POWERMODECAM);
1847
1848         libertas_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1849                               CMD_SUBCMD_EXIT_PS,
1850                               wait_option, 0, &Localpsmode);
1851
1852         lbs_deb_leave(LBS_DEB_HOST);
1853 }
1854
1855 /**
1856  *  @brief This function checks condition and prepares to
1857  *  send sleep confirm command to firmware if ok.
1858  *
1859  *  @param priv         A pointer to wlan_private structure
1860  *  @param psmode       Power Saving mode
1861  *  @return             n/a
1862  */
1863 void libertas_ps_confirm_sleep(wlan_private * priv, u16 psmode)
1864 {
1865         unsigned long flags =0;
1866         wlan_adapter *adapter = priv->adapter;
1867         u8 allowed = 1;
1868
1869         lbs_deb_enter(LBS_DEB_HOST);
1870
1871         if (priv->dnld_sent) {
1872                 allowed = 0;
1873                 lbs_deb_host("dnld_sent was set");
1874         }
1875
1876         spin_lock_irqsave(&adapter->driver_lock, flags);
1877         if (adapter->cur_cmd) {
1878                 allowed = 0;
1879                 lbs_deb_host("cur_cmd was set");
1880         }
1881         if (adapter->intcounter > 0) {
1882                 allowed = 0;
1883                 lbs_deb_host("intcounter %d", adapter->intcounter);
1884         }
1885         spin_unlock_irqrestore(&adapter->driver_lock, flags);
1886
1887         if (allowed) {
1888                 lbs_deb_host("sending libertas_ps_confirm_sleep\n");
1889                 sendconfirmsleep(priv, (u8 *) & adapter->libertas_ps_confirm_sleep,
1890                                  sizeof(struct PS_CMD_ConfirmSleep));
1891         } else {
1892                 lbs_deb_host("sleep confirm has been delayed\n");
1893         }
1894
1895         lbs_deb_leave(LBS_DEB_HOST);
1896 }