SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 #include "cmd.h"
  15
  16 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
  17
  18
  19 /**
  20  *  @brief Simple callback that copies response back into command
  21  *
  22  *  @param priv         A pointer to struct lbs_private structure
  23  *  @param extra        A pointer to the original command structure for which
  24  *                      'resp' is a response
  25  *  @param resp         A pointer to the command response
  26  *
  27  *  @return             0 on success, error on failure
  28  */
  29 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
  30                      struct cmd_header *resp)
  31 {
  32         struct cmd_header *buf = (void *)extra;
  33         uint16_t copy_len;
  34
  35         copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
  36         memcpy(buf, resp, copy_len);
  37         return 0;
  38 }
  39 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
  40
  41 /**
  42  *  @brief Simple callback that ignores the result. Use this if
  43  *  you just want to send a command to the hardware, but don't
  44  *  care for the result.
  45  *
  46  *  @param priv         ignored
  47  *  @param extra        ignored
  48  *  @param resp         ignored
  49  *
  50  *  @return             0 for success
  51  */
  52 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
  53                      struct cmd_header *resp)
  54 {
  55         return 0;
  56 }
  57
  58
  59 /**
  60  *  @brief Checks whether a command is allowed in Power Save mode
  61  *
  62  *  @param command the command ID
  63  *  @return        1 if allowed, 0 if not allowed
  64  */
  65 static u8 is_command_allowed_in_ps(u16 cmd)
  66 {
  67         switch (cmd) {
  68         case CMD_802_11_RSSI:
  69                 return 1;
  70         default:
  71                 break;
  72         }
  73         return 0;
  74 }
  75
  76 /**
  77  *  @brief Updates the hardware details like MAC address and regulatory region
  78  *
  79  *  @param priv         A pointer to struct lbs_private structure
  80  *
  81  *  @return             0 on success, error on failure
  82  */
  83 int lbs_update_hw_spec(struct lbs_private *priv)
  84 {
  85         struct cmd_ds_get_hw_spec cmd;
  86         int ret = -1;
  87         u32 i;
  88         DECLARE_MAC_BUF(mac);
  89
  90         lbs_deb_enter(LBS_DEB_CMD);
  91
  92         memset(&cmd, 0, sizeof(cmd));
  93         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
  94         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
  95         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
  96         if (ret)
  97                 goto out;
  98
  99         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
 100
 101         /* The firmware release is in an interesting format: the patch
 102          * level is in the most significant nibble ... so fix that: */
 103         priv->fwrelease = le32_to_cpu(cmd.fwrelease);
 104         priv->fwrelease = (priv->fwrelease << 8) |
 105                 (priv->fwrelease >> 24 & 0xff);
 106
 107         /* Some firmware capabilities:
 108          * CF card    firmware 5.0.16p0:   cap 0x00000303
 109          * USB dongle firmware 5.110.17p2: cap 0x00000303
 110          */
 111         printk("libertas: %s, fw %u.%u.%up%u, cap 0x%08x\n",
 112                 print_mac(mac, cmd.permanentaddr),
 113                 priv->fwrelease >> 24 & 0xff,
 114                 priv->fwrelease >> 16 & 0xff,
 115                 priv->fwrelease >>  8 & 0xff,
 116                 priv->fwrelease       & 0xff,
 117                 priv->fwcapinfo);
 118         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
 119                     cmd.hwifversion, cmd.version);
 120
 121         /* Clamp region code to 8-bit since FW spec indicates that it should
 122          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
 123          * returns non-zero high 8 bits here.
 124          */
 125         priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
 126
 127         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 128                 /* use the region code to search for the index */
 129                 if (priv->regioncode == lbs_region_code_to_index[i])
 130                         break;
 131         }
 132
 133         /* if it's unidentified region code, use the default (USA) */
 134         if (i >= MRVDRV_MAX_REGION_CODE) {
 135                 priv->regioncode = 0x10;
 136                 lbs_pr_info("unidentified region code; using the default (USA)\n");
 137         }
 138
 139         if (priv->current_addr[0] == 0xff)
 140                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
 141
 142         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
 143         if (priv->mesh_dev)
 144                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 145
 146         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
 147                 ret = -1;
 148                 goto out;
 149         }
 150
 151         if (lbs_set_universaltable(priv, 0)) {
 152                 ret = -1;
 153                 goto out;
 154         }
 155
 156 out:
 157         lbs_deb_leave(LBS_DEB_CMD);
 158         return ret;
 159 }
 160
 161 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
 162 {
 163         struct cmd_ds_host_sleep cmd_config;
 164         int ret;
 165
 166         cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
 167         cmd_config.criteria = cpu_to_le32(criteria);
 168         cmd_config.gpio = priv->wol_gpio;
 169         cmd_config.gap = priv->wol_gap;
 170
 171         ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
 172         if (!ret) {
 173                 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
 174                 priv->wol_criteria = criteria;
 175         } else {
 176                 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
 177         }
 178
 179         return ret;
 180 }
 181 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
 182
 183 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
 184                                    u16 cmd_action)
 185 {
 186         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
 187
 188         lbs_deb_enter(LBS_DEB_CMD);
 189
 190         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
 191         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
 192                                 S_DS_GEN);
 193         psm->action = cpu_to_le16(cmd_action);
 194         psm->multipledtim = 0;
 195         switch (cmd_action) {
 196         case CMD_SUBCMD_ENTER_PS:
 197                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
 198
 199                 psm->locallisteninterval = 0;
 200                 psm->nullpktinterval = 0;
 201                 psm->multipledtim =
 202                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
 203                 break;
 204
 205         case CMD_SUBCMD_EXIT_PS:
 206                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
 207                 break;
 208
 209         case CMD_SUBCMD_SLEEP_CONFIRMED:
 210                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
 211                 break;
 212
 213         default:
 214                 break;
 215         }
 216
 217         lbs_deb_leave(LBS_DEB_CMD);
 218         return 0;
 219 }
 220
 221 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
 222                                       uint16_t cmd_action, uint16_t *timeout)
 223 {
 224         struct cmd_ds_802_11_inactivity_timeout cmd;
 225         int ret;
 226
 227         lbs_deb_enter(LBS_DEB_CMD);
 228
 229         cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
 230         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 231
 232         cmd.action = cpu_to_le16(cmd_action);
 233
 234         if (cmd_action == CMD_ACT_SET)
 235                 cmd.timeout = cpu_to_le16(*timeout);
 236         else
 237                 cmd.timeout = 0;
 238
 239         ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
 240
 241         if (!ret)
 242                 *timeout = le16_to_cpu(cmd.timeout);
 243
 244         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 245         return 0;
 246 }
 247
 248 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
 249                                 struct sleep_params *sp)
 250 {
 251         struct cmd_ds_802_11_sleep_params cmd;
 252         int ret;
 253
 254         lbs_deb_enter(LBS_DEB_CMD);
 255
 256         if (cmd_action == CMD_ACT_GET) {
 257                 memset(&cmd, 0, sizeof(cmd));
 258         } else {
 259                 cmd.error = cpu_to_le16(sp->sp_error);
 260                 cmd.offset = cpu_to_le16(sp->sp_offset);
 261                 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
 262                 cmd.calcontrol = sp->sp_calcontrol;
 263                 cmd.externalsleepclk = sp->sp_extsleepclk;
 264                 cmd.reserved = cpu_to_le16(sp->sp_reserved);
 265         }
 266         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 267         cmd.action = cpu_to_le16(cmd_action);
 268
 269         ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
 270
 271         if (!ret) {
 272                 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
 273                             "calcontrol 0x%x extsleepclk 0x%x\n",
 274                             le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
 275                             le16_to_cpu(cmd.stabletime), cmd.calcontrol,
 276                             cmd.externalsleepclk);
 277
 278                 sp->sp_error = le16_to_cpu(cmd.error);
 279                 sp->sp_offset = le16_to_cpu(cmd.offset);
 280                 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
 281                 sp->sp_calcontrol = cmd.calcontrol;
 282                 sp->sp_extsleepclk = cmd.externalsleepclk;
 283                 sp->sp_reserved = le16_to_cpu(cmd.reserved);
 284         }
 285
 286         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 287         return 0;
 288 }
 289
 290 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
 291                            struct assoc_request *assoc)
 292 {
 293         struct cmd_ds_802_11_set_wep cmd;
 294         int ret = 0;
 295
 296         lbs_deb_enter(LBS_DEB_CMD);
 297
 298         cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
 299         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 300
 301         cmd.action = cpu_to_le16(cmd_action);
 302
 303         if (cmd_action == CMD_ACT_ADD) {
 304                 int i;
 305
 306                 /* default tx key index */
 307                 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
 308                                            CMD_WEP_KEY_INDEX_MASK);
 309
 310                 /* Copy key types and material to host command structure */
 311                 for (i = 0; i < 4; i++) {
 312                         struct enc_key *pkey = &assoc->wep_keys[i];
 313
 314                         switch (pkey->len) {
 315                         case KEY_LEN_WEP_40:
 316                                 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
 317                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 318                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
 319                                 break;
 320                         case KEY_LEN_WEP_104:
 321                                 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
 322                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 323                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
 324                                 break;
 325                         case 0:
 326                                 break;
 327                         default:
 328                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
 329                                             i, pkey->len);
 330                                 ret = -1;
 331                                 goto done;
 332                                 break;
 333                         }
 334                 }
 335         } else if (cmd_action == CMD_ACT_REMOVE) {
 336                 /* ACT_REMOVE clears _all_ WEP keys */
 337
 338                 /* default tx key index */
 339                 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
 340                                            CMD_WEP_KEY_INDEX_MASK);
 341                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
 342         }
 343
 344         ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
 345 done:
 346         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 347         return ret;
 348 }
 349
 350 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
 351                               uint16_t *enable)
 352 {
 353         struct cmd_ds_802_11_enable_rsn cmd;
 354         int ret;
 355
 356         lbs_deb_enter(LBS_DEB_CMD);
 357
 358         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 359         cmd.action = cpu_to_le16(cmd_action);
 360
 361         if (cmd_action == CMD_ACT_SET) {
 362                 if (*enable)
 363                         cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
 364                 else
 365                         cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
 366                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
 367         }
 368
 369         ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
 370         if (!ret && cmd_action == CMD_ACT_GET)
 371                 *enable = le16_to_cpu(cmd.enable);
 372
 373         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 374         return ret;
 375 }
 376
 377 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
 378                             struct enc_key *key)
 379 {
 380         lbs_deb_enter(LBS_DEB_CMD);
 381
 382         if (key->flags & KEY_INFO_WPA_ENABLED)
 383                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
 384         if (key->flags & KEY_INFO_WPA_UNICAST)
 385                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
 386         if (key->flags & KEY_INFO_WPA_MCAST)
 387                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
 388
 389         keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
 390         keyparam->keytypeid = cpu_to_le16(key->type);
 391         keyparam->keylen = cpu_to_le16(key->len);
 392         memcpy(keyparam->key, key->key, key->len);
 393
 394         /* Length field doesn't include the {type,length} header */
 395         keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
 396         lbs_deb_leave(LBS_DEB_CMD);
 397 }
 398
 399 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
 400                                 struct assoc_request *assoc)
 401 {
 402         struct cmd_ds_802_11_key_material cmd;
 403         int ret = 0;
 404         int index = 0;
 405
 406         lbs_deb_enter(LBS_DEB_CMD);
 407
 408         cmd.action = cpu_to_le16(cmd_action);
 409         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 410
 411         if (cmd_action == CMD_ACT_GET) {
 412                 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
 413         } else {
 414                 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
 415
 416                 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
 417                         set_one_wpa_key(&cmd.keyParamSet[index],
 418                                         &assoc->wpa_unicast_key);
 419                         index++;
 420                 }
 421
 422                 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
 423                         set_one_wpa_key(&cmd.keyParamSet[index],
 424                                         &assoc->wpa_mcast_key);
 425                         index++;
 426                 }
 427
 428                 /* The common header and as many keys as we included */
 429                 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
 430                                                     keyParamSet[index]));
 431         }
 432         ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
 433         /* Copy the returned key to driver private data */
 434         if (!ret && cmd_action == CMD_ACT_GET) {
 435                 void *buf_ptr = cmd.keyParamSet;
 436                 void *resp_end = &(&cmd)[1];
 437
 438                 while (buf_ptr < resp_end) {
 439                         struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
 440                         struct enc_key *key;
 441                         uint16_t param_set_len = le16_to_cpu(keyparam->length);
 442                         uint16_t key_len = le16_to_cpu(keyparam->keylen);
 443                         uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
 444                         uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
 445                         void *end;
 446
 447                         end = (void *)keyparam + sizeof(keyparam->type)
 448                                 + sizeof(keyparam->length) + param_set_len;
 449
 450                         /* Make sure we don't access past the end of the IEs */
 451                         if (end > resp_end)
 452                                 break;
 453
 454                         if (key_flags & KEY_INFO_WPA_UNICAST)
 455                                 key = &priv->wpa_unicast_key;
 456                         else if (key_flags & KEY_INFO_WPA_MCAST)
 457                                 key = &priv->wpa_mcast_key;
 458                         else
 459                                 break;
 460
 461                         /* Copy returned key into driver */
 462                         memset(key, 0, sizeof(struct enc_key));
 463                         if (key_len > sizeof(key->key))
 464                                 break;
 465                         key->type = key_type;
 466                         key->flags = key_flags;
 467                         key->len = key_len;
 468                         memcpy(key->key, keyparam->key, key->len);
 469
 470                         buf_ptr = end + 1;
 471                 }
 472         }
 473
 474         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 475         return ret;
 476 }
 477
 478 static int lbs_cmd_802_11_reset(struct cmd_ds_command *cmd, int cmd_action)
 479 {
 480         struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
 481
 482         lbs_deb_enter(LBS_DEB_CMD);
 483
 484         cmd->command = cpu_to_le16(CMD_802_11_RESET);
 485         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
 486         reset->action = cpu_to_le16(cmd_action);
 487
 488         lbs_deb_leave(LBS_DEB_CMD);
 489         return 0;
 490 }
 491
 492 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
 493                                     struct cmd_ds_command *cmd,
 494                                     int cmd_action,
 495                                     int cmd_oid, void *pdata_buf)
 496 {
 497         struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
 498         u8 ucTemp;
 499
 500         lbs_deb_enter(LBS_DEB_CMD);
 501
 502         lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
 503
 504         cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
 505         cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
 506
 507         switch (cmd_oid) {
 508         case OID_802_11_INFRASTRUCTURE_MODE:
 509         {
 510                 u8 mode = (u8) (size_t) pdata_buf;
 511                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 512                 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
 513                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
 514                 if (mode == IW_MODE_ADHOC) {
 515                         ucTemp = SNMP_MIB_VALUE_ADHOC;
 516                 } else {
 517                         /* Infra and Auto modes */
 518                         ucTemp = SNMP_MIB_VALUE_INFRA;
 519                 }
 520
 521                 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
 522
 523                 break;
 524         }
 525
 526         case OID_802_11D_ENABLE:
 527                 {
 528                         u32 ulTemp;
 529
 530                         pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
 531
 532                         if (cmd_action == CMD_ACT_SET) {
 533                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 534                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 535                                 ulTemp = *(u32 *)pdata_buf;
 536                                 *((__le16 *)(pSNMPMIB->value)) =
 537                                     cpu_to_le16((u16) ulTemp);
 538                         }
 539                         break;
 540                 }
 541
 542         case OID_802_11_FRAGMENTATION_THRESHOLD:
 543                 {
 544                         u32 ulTemp;
 545
 546                         pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
 547
 548                         if (cmd_action == CMD_ACT_GET) {
 549                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 550                         } else if (cmd_action == CMD_ACT_SET) {
 551                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 552                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 553                                 ulTemp = *((u32 *) pdata_buf);
 554                                 *((__le16 *)(pSNMPMIB->value)) =
 555                                     cpu_to_le16((u16) ulTemp);
 556
 557                         }
 558
 559                         break;
 560                 }
 561
 562         case OID_802_11_RTS_THRESHOLD:
 563                 {
 564
 565                         u32 ulTemp;
 566                         pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
 567
 568                         if (cmd_action == CMD_ACT_GET) {
 569                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 570                         } else if (cmd_action == CMD_ACT_SET) {
 571                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 572                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 573                                 ulTemp = *((u32 *)pdata_buf);
 574                                 *(__le16 *)(pSNMPMIB->value) =
 575                                     cpu_to_le16((u16) ulTemp);
 576
 577                         }
 578                         break;
 579                 }
 580         case OID_802_11_TX_RETRYCOUNT:
 581                 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
 582
 583                 if (cmd_action == CMD_ACT_GET) {
 584                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 585                 } else if (cmd_action == CMD_ACT_SET) {
 586                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 587                         pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 588                         *((__le16 *)(pSNMPMIB->value)) =
 589                             cpu_to_le16((u16) priv->txretrycount);
 590                 }
 591
 592                 break;
 593         default:
 594                 break;
 595         }
 596
 597         lbs_deb_cmd(
 598                "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
 599                le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
 600                le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
 601
 602         lbs_deb_cmd(
 603                "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
 604                le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
 605                le16_to_cpu(pSNMPMIB->bufsize),
 606                le16_to_cpu(*(__le16 *) pSNMPMIB->value));
 607
 608         lbs_deb_leave(LBS_DEB_CMD);
 609         return 0;
 610 }
 611
 612 static int lbs_cmd_802_11_rf_tx_power(struct cmd_ds_command *cmd,
 613                                        u16 cmd_action, void *pdata_buf)
 614 {
 615
 616         struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
 617
 618         lbs_deb_enter(LBS_DEB_CMD);
 619
 620         cmd->size =
 621             cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
 622         cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
 623         prtp->action = cpu_to_le16(cmd_action);
 624
 625         lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
 626                     le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
 627                     le16_to_cpu(prtp->action));
 628
 629         switch (cmd_action) {
 630         case CMD_ACT_TX_POWER_OPT_GET:
 631                 prtp->action = cpu_to_le16(CMD_ACT_GET);
 632                 prtp->currentlevel = 0;
 633                 break;
 634
 635         case CMD_ACT_TX_POWER_OPT_SET_HIGH:
 636                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 637                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
 638                 break;
 639
 640         case CMD_ACT_TX_POWER_OPT_SET_MID:
 641                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 642                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
 643                 break;
 644
 645         case CMD_ACT_TX_POWER_OPT_SET_LOW:
 646                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 647                 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
 648                 break;
 649         }
 650
 651         lbs_deb_leave(LBS_DEB_CMD);
 652         return 0;
 653 }
 654
 655 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 656                                       u16 cmd_action, void *pdata_buf)
 657 {
 658         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 659
 660         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 661         cmd->size =
 662             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 663                              S_DS_GEN);
 664
 665         monitor->action = cpu_to_le16(cmd_action);
 666         if (cmd_action == CMD_ACT_SET) {
 667                 monitor->mode =
 668                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 669         }
 670
 671         return 0;
 672 }
 673
 674 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 675                                               struct cmd_ds_command *cmd,
 676                                               u16 cmd_action)
 677 {
 678         struct cmd_ds_802_11_rate_adapt_rateset
 679         *rateadapt = &cmd->params.rateset;
 680
 681         lbs_deb_enter(LBS_DEB_CMD);
 682         cmd->size =
 683             cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
 684                              + S_DS_GEN);
 685         cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
 686
 687         rateadapt->action = cpu_to_le16(cmd_action);
 688         rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
 689         rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
 690
 691         lbs_deb_leave(LBS_DEB_CMD);
 692         return 0;
 693 }
 694
 695 /**
 696  *  @brief Get the current data rate
 697  *
 698  *  @param priv         A pointer to struct lbs_private structure
 699  *
 700  *  @return             The data rate on success, error on failure
 701  */
 702 int lbs_get_data_rate(struct lbs_private *priv)
 703 {
 704         struct cmd_ds_802_11_data_rate cmd;
 705         int ret = -1;
 706
 707         lbs_deb_enter(LBS_DEB_CMD);
 708
 709         memset(&cmd, 0, sizeof(cmd));
 710         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 711         cmd.action = cpu_to_le16(CMD_ACT_GET_TX_RATE);
 712
 713         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 714         if (ret)
 715                 goto out;
 716
 717         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 718
 719         ret = (int) lbs_fw_index_to_data_rate(cmd.rates[0]);
 720         lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", ret);
 721
 722 out:
 723         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 724         return ret;
 725 }
 726
 727 /**
 728  *  @brief Set the data rate
 729  *
 730  *  @param priv         A pointer to struct lbs_private structure
 731  *  @param rate         The desired data rate, or 0 to clear a locked rate
 732  *
 733  *  @return             0 on success, error on failure
 734  */
 735 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 736 {
 737         struct cmd_ds_802_11_data_rate cmd;
 738         int ret = 0;
 739
 740         lbs_deb_enter(LBS_DEB_CMD);
 741
 742         memset(&cmd, 0, sizeof(cmd));
 743         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 744
 745         if (rate > 0) {
 746                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 747                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 748                 if (cmd.rates[0] == 0) {
 749                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 750                                     " 0x%02X\n", rate);
 751                         ret = 0;
 752                         goto out;
 753                 }
 754                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 755         } else {
 756                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 757                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 758         }
 759
 760         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 761         if (ret)
 762                 goto out;
 763
 764         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 765
 766         /* FIXME: get actual rates FW can do if this command actually returns
 767          * all data rates supported.
 768          */
 769         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 770         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 771
 772 out:
 773         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 774         return ret;
 775 }
 776
 777 static int lbs_cmd_mac_multicast_adr(struct lbs_private *priv,
 778                                       struct cmd_ds_command *cmd,
 779                                       u16 cmd_action)
 780 {
 781         struct cmd_ds_mac_multicast_adr *pMCastAdr = &cmd->params.madr;
 782
 783         lbs_deb_enter(LBS_DEB_CMD);
 784         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_multicast_adr) +
 785                              S_DS_GEN);
 786         cmd->command = cpu_to_le16(CMD_MAC_MULTICAST_ADR);
 787
 788         lbs_deb_cmd("MULTICAST_ADR: setting %d addresses\n", pMCastAdr->nr_of_adrs);
 789         pMCastAdr->action = cpu_to_le16(cmd_action);
 790         pMCastAdr->nr_of_adrs =
 791             cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
 792         memcpy(pMCastAdr->maclist, priv->multicastlist,
 793                priv->nr_of_multicastmacaddr * ETH_ALEN);
 794
 795         lbs_deb_leave(LBS_DEB_CMD);
 796         return 0;
 797 }
 798
 799 /**
 800  *  @brief Get the radio channel
 801  *
 802  *  @param priv         A pointer to struct lbs_private structure
 803  *
 804  *  @return             The channel on success, error on failure
 805  */
 806 int lbs_get_channel(struct lbs_private *priv)
 807 {
 808         struct cmd_ds_802_11_rf_channel cmd;
 809         int ret = 0;
 810
 811         lbs_deb_enter(LBS_DEB_CMD);
 812
 813         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 814         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 815
 816         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 817         if (ret)
 818                 goto out;
 819
 820         ret = le16_to_cpu(cmd.channel);
 821         lbs_deb_cmd("current radio channel is %d\n", ret);
 822
 823 out:
 824         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 825         return ret;
 826 }
 827
 828 /**
 829  *  @brief Set the radio channel
 830  *
 831  *  @param priv         A pointer to struct lbs_private structure
 832  *  @param channel      The desired channel, or 0 to clear a locked channel
 833  *
 834  *  @return             0 on success, error on failure
 835  */
 836 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 837 {
 838         struct cmd_ds_802_11_rf_channel cmd;
 839         u8 old_channel = priv->curbssparams.channel;
 840         int ret = 0;
 841
 842         lbs_deb_enter(LBS_DEB_CMD);
 843
 844         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 845         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 846         cmd.channel = cpu_to_le16(channel);
 847
 848         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 849         if (ret)
 850                 goto out;
 851
 852         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 853         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 854                 priv->curbssparams.channel);
 855
 856 out:
 857         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 858         return ret;
 859 }
 860
 861 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 862                                 struct cmd_ds_command *cmd)
 863 {
 864
 865         lbs_deb_enter(LBS_DEB_CMD);
 866         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 867         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 868         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 869
 870         /* reset Beacon SNR/NF/RSSI values */
 871         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 872         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 873         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 874         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 875         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 876         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 877
 878         lbs_deb_leave(LBS_DEB_CMD);
 879         return 0;
 880 }
 881
 882 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 883                                u8 cmd_action, void *pdata_buf)
 884 {
 885         struct lbs_offset_value *offval;
 886
 887         lbs_deb_enter(LBS_DEB_CMD);
 888
 889         offval = (struct lbs_offset_value *)pdata_buf;
 890
 891         switch (le16_to_cpu(cmdptr->command)) {
 892         case CMD_MAC_REG_ACCESS:
 893                 {
 894                         struct cmd_ds_mac_reg_access *macreg;
 895
 896                         cmdptr->size =
 897                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 898                                         + S_DS_GEN);
 899                         macreg =
 900                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 901                             macreg;
 902
 903                         macreg->action = cpu_to_le16(cmd_action);
 904                         macreg->offset = cpu_to_le16((u16) offval->offset);
 905                         macreg->value = cpu_to_le32(offval->value);
 906
 907                         break;
 908                 }
 909
 910         case CMD_BBP_REG_ACCESS:
 911                 {
 912                         struct cmd_ds_bbp_reg_access *bbpreg;
 913
 914                         cmdptr->size =
 915                             cpu_to_le16(sizeof
 916                                              (struct cmd_ds_bbp_reg_access)
 917                                              + S_DS_GEN);
 918                         bbpreg =
 919                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 920                             bbpreg;
 921
 922                         bbpreg->action = cpu_to_le16(cmd_action);
 923                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 924                         bbpreg->value = (u8) offval->value;
 925
 926                         break;
 927                 }
 928
 929         case CMD_RF_REG_ACCESS:
 930                 {
 931                         struct cmd_ds_rf_reg_access *rfreg;
 932
 933                         cmdptr->size =
 934                             cpu_to_le16(sizeof
 935                                              (struct cmd_ds_rf_reg_access) +
 936                                              S_DS_GEN);
 937                         rfreg =
 938                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 939                             rfreg;
 940
 941                         rfreg->action = cpu_to_le16(cmd_action);
 942                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 943                         rfreg->value = (u8) offval->value;
 944
 945                         break;
 946                 }
 947
 948         default:
 949                 break;
 950         }
 951
 952         lbs_deb_leave(LBS_DEB_CMD);
 953         return 0;
 954 }
 955
 956 static int lbs_cmd_802_11_eeprom_access(struct cmd_ds_command *cmd,
 957                                         void *pdata_buf)
 958 {
 959         struct lbs_ioctl_regrdwr *ea = pdata_buf;
 960
 961         lbs_deb_enter(LBS_DEB_CMD);
 962
 963         cmd->command = cpu_to_le16(CMD_802_11_EEPROM_ACCESS);
 964         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) +
 965                                 S_DS_GEN);
 966         cmd->result = 0;
 967
 968         cmd->params.rdeeprom.action = cpu_to_le16(ea->action);
 969         cmd->params.rdeeprom.offset = cpu_to_le16(ea->offset);
 970         cmd->params.rdeeprom.bytecount = cpu_to_le16(ea->NOB);
 971         cmd->params.rdeeprom.value = 0;
 972
 973         lbs_deb_leave(LBS_DEB_CMD);
 974         return 0;
 975 }
 976
 977 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 978                                u16 cmd_action, void *pdata_buf)
 979 {
 980         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 981         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 982
 983         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 984         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 985         cmd->result = 0;
 986         bt_access->action = cpu_to_le16(cmd_action);
 987
 988         switch (cmd_action) {
 989         case CMD_ACT_BT_ACCESS_ADD:
 990                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 991                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 992                 break;
 993         case CMD_ACT_BT_ACCESS_DEL:
 994                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 995                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 996                 break;
 997         case CMD_ACT_BT_ACCESS_LIST:
 998                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 999                 break;
1000         case CMD_ACT_BT_ACCESS_RESET:
1001                 break;
1002         case CMD_ACT_BT_ACCESS_SET_INVERT:
1003                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1004                 break;
1005         case CMD_ACT_BT_ACCESS_GET_INVERT:
1006                 break;
1007         default:
1008                 break;
1009         }
1010         lbs_deb_leave(LBS_DEB_CMD);
1011         return 0;
1012 }
1013
1014 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1015                                u16 cmd_action, void *pdata_buf)
1016 {
1017         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1018         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1019
1020         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1021         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1022         cmd->result = 0;
1023
1024         if (pdata_buf)
1025                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1026         else
1027                 memset(fwt_access, 0, sizeof(*fwt_access));
1028
1029         fwt_access->action = cpu_to_le16(cmd_action);
1030
1031         lbs_deb_leave(LBS_DEB_CMD);
1032         return 0;
1033 }
1034
1035 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1036                     struct cmd_ds_mesh_access *cmd)
1037 {
1038         int ret;
1039
1040         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1041
1042         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1043         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1044         cmd->hdr.result = 0;
1045
1046         cmd->action = cpu_to_le16(cmd_action);
1047
1048         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1049
1050         lbs_deb_leave(LBS_DEB_CMD);
1051         return ret;
1052 }
1053
1054 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1055 {
1056         struct cmd_ds_mesh_config cmd;
1057
1058         memset(&cmd, 0, sizeof(cmd));
1059         cmd.action = cpu_to_le16(enable);
1060         cmd.channel = cpu_to_le16(chan);
1061         cmd.type = cpu_to_le16(priv->mesh_tlv);
1062         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1063
1064         if (enable) {
1065                 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1066                 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1067         }
1068         lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1069                     enable, priv->mesh_tlv, chan,
1070                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1071         return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1072 }
1073
1074 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1075                                 struct cmd_ds_command *cmd,
1076                                 u16 cmd_action)
1077 {
1078         struct cmd_ds_802_11_beacon_control
1079                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1080
1081         lbs_deb_enter(LBS_DEB_CMD);
1082         cmd->size =
1083             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1084                              + S_DS_GEN);
1085         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1086
1087         bcn_ctrl->action = cpu_to_le16(cmd_action);
1088         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1089         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1090
1091         lbs_deb_leave(LBS_DEB_CMD);
1092         return 0;
1093 }
1094
1095 static void lbs_queue_cmd(struct lbs_private *priv,
1096                           struct cmd_ctrl_node *cmdnode)
1097 {
1098         unsigned long flags;
1099         int addtail = 1;
1100
1101         lbs_deb_enter(LBS_DEB_HOST);
1102
1103         if (!cmdnode) {
1104                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1105                 goto done;
1106         }
1107         if (!cmdnode->cmdbuf->size) {
1108                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1109                 goto done;
1110         }
1111         cmdnode->result = 0;
1112
1113         /* Exit_PS command needs to be queued in the header always. */
1114         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1115                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1116
1117                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1118                         if (priv->psstate != PS_STATE_FULL_POWER)
1119                                 addtail = 0;
1120                 }
1121         }
1122
1123         spin_lock_irqsave(&priv->driver_lock, flags);
1124
1125         if (addtail)
1126                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1127         else
1128                 list_add(&cmdnode->list, &priv->cmdpendingq);
1129
1130         spin_unlock_irqrestore(&priv->driver_lock, flags);
1131
1132         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1133                      le16_to_cpu(cmdnode->cmdbuf->command));
1134
1135 done:
1136         lbs_deb_leave(LBS_DEB_HOST);
1137 }
1138
1139 static void lbs_submit_command(struct lbs_private *priv,
1140                                struct cmd_ctrl_node *cmdnode)
1141 {
1142         unsigned long flags;
1143         struct cmd_header *cmd;
1144         uint16_t cmdsize;
1145         uint16_t command;
1146         int timeo = 5 * HZ;
1147         int ret;
1148
1149         lbs_deb_enter(LBS_DEB_HOST);
1150
1151         cmd = cmdnode->cmdbuf;
1152
1153         spin_lock_irqsave(&priv->driver_lock, flags);
1154         priv->cur_cmd = cmdnode;
1155         priv->cur_cmd_retcode = 0;
1156         spin_unlock_irqrestore(&priv->driver_lock, flags);
1157
1158         cmdsize = le16_to_cpu(cmd->size);
1159         command = le16_to_cpu(cmd->command);
1160
1161         /* These commands take longer */
1162         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1163             command == CMD_802_11_AUTHENTICATE)
1164                 timeo = 10 * HZ;
1165
1166         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1167                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1168         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1169
1170         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1171
1172         if (ret) {
1173                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1174                 /* Let the timer kick in and retry, and potentially reset
1175                    the whole thing if the condition persists */
1176                 timeo = HZ;
1177         }
1178
1179         /* Setup the timer after transmit command */
1180         mod_timer(&priv->command_timer, jiffies + timeo);
1181
1182         lbs_deb_leave(LBS_DEB_HOST);
1183 }
1184
1185 /**
1186  *  This function inserts command node to cmdfreeq
1187  *  after cleans it. Requires priv->driver_lock held.
1188  */
1189 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1190                                          struct cmd_ctrl_node *cmdnode)
1191 {
1192         lbs_deb_enter(LBS_DEB_HOST);
1193
1194         if (!cmdnode)
1195                 goto out;
1196
1197         cmdnode->callback = NULL;
1198         cmdnode->callback_arg = 0;
1199
1200         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1201
1202         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1203  out:
1204         lbs_deb_leave(LBS_DEB_HOST);
1205 }
1206
1207 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1208         struct cmd_ctrl_node *ptempcmd)
1209 {
1210         unsigned long flags;
1211
1212         spin_lock_irqsave(&priv->driver_lock, flags);
1213         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1214         spin_unlock_irqrestore(&priv->driver_lock, flags);
1215 }
1216
1217 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1218                           int result)
1219 {
1220         if (cmd == priv->cur_cmd)
1221                 priv->cur_cmd_retcode = result;
1222
1223         cmd->result = result;
1224         cmd->cmdwaitqwoken = 1;
1225         wake_up_interruptible(&cmd->cmdwait_q);
1226
1227         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1228                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1229         priv->cur_cmd = NULL;
1230 }
1231
1232 int lbs_set_radio_control(struct lbs_private *priv)
1233 {
1234         int ret = 0;
1235         struct cmd_ds_802_11_radio_control cmd;
1236
1237         lbs_deb_enter(LBS_DEB_CMD);
1238
1239         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1240         cmd.action = cpu_to_le16(CMD_ACT_SET);
1241
1242         switch (priv->preamble) {
1243         case CMD_TYPE_SHORT_PREAMBLE:
1244                 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1245                 break;
1246
1247         case CMD_TYPE_LONG_PREAMBLE:
1248                 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1249                 break;
1250
1251         case CMD_TYPE_AUTO_PREAMBLE:
1252         default:
1253                 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1254                 break;
1255         }
1256
1257         if (priv->radioon)
1258                 cmd.control |= cpu_to_le16(TURN_ON_RF);
1259         else
1260                 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1261
1262         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1263                     priv->preamble);
1264
1265         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1266
1267         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1268         return ret;
1269 }
1270
1271 void lbs_set_mac_control(struct lbs_private *priv)
1272 {
1273         struct cmd_ds_mac_control cmd;
1274
1275         lbs_deb_enter(LBS_DEB_CMD);
1276
1277         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1278         cmd.action = cpu_to_le16(priv->mac_control);
1279         cmd.reserved = 0;
1280
1281         lbs_cmd_async(priv, CMD_MAC_CONTROL,
1282                 &cmd.hdr, sizeof(cmd));
1283
1284         lbs_deb_leave(LBS_DEB_CMD);
1285 }
1286
1287 /**
1288  *  @brief This function prepare the command before send to firmware.
1289  *
1290  *  @param priv         A pointer to struct lbs_private structure
1291  *  @param cmd_no       command number
1292  *  @param cmd_action   command action: GET or SET
1293  *  @param wait_option  wait option: wait response or not
1294  *  @param cmd_oid      cmd oid: treated as sub command
1295  *  @param pdata_buf    A pointer to informaion buffer
1296  *  @return             0 or -1
1297  */
1298 int lbs_prepare_and_send_command(struct lbs_private *priv,
1299                           u16 cmd_no,
1300                           u16 cmd_action,
1301                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1302 {
1303         int ret = 0;
1304         struct cmd_ctrl_node *cmdnode;
1305         struct cmd_ds_command *cmdptr;
1306         unsigned long flags;
1307
1308         lbs_deb_enter(LBS_DEB_HOST);
1309
1310         if (!priv) {
1311                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1312                 ret = -1;
1313                 goto done;
1314         }
1315
1316         if (priv->surpriseremoved) {
1317                 lbs_deb_host("PREP_CMD: card removed\n");
1318                 ret = -1;
1319                 goto done;
1320         }
1321
1322         cmdnode = lbs_get_cmd_ctrl_node(priv);
1323
1324         if (cmdnode == NULL) {
1325                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1326
1327                 /* Wake up main thread to execute next command */
1328                 wake_up_interruptible(&priv->waitq);
1329                 ret = -1;
1330                 goto done;
1331         }
1332
1333         cmdnode->callback = NULL;
1334         cmdnode->callback_arg = (unsigned long)pdata_buf;
1335
1336         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1337
1338         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1339
1340         /* Set sequence number, command and INT option */
1341         priv->seqnum++;
1342         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1343
1344         cmdptr->command = cpu_to_le16(cmd_no);
1345         cmdptr->result = 0;
1346
1347         switch (cmd_no) {
1348         case CMD_802_11_PS_MODE:
1349                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1350                 break;
1351
1352         case CMD_802_11_ASSOCIATE:
1353         case CMD_802_11_REASSOCIATE:
1354                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1355                 break;
1356
1357         case CMD_802_11_DEAUTHENTICATE:
1358                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1359                 break;
1360
1361         case CMD_802_11_AD_HOC_START:
1362                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1363                 break;
1364
1365         case CMD_802_11_RESET:
1366                 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1367                 break;
1368
1369         case CMD_802_11_AUTHENTICATE:
1370                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1371                 break;
1372
1373         case CMD_802_11_SNMP_MIB:
1374                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1375                                                cmd_action, cmd_oid, pdata_buf);
1376                 break;
1377
1378         case CMD_MAC_REG_ACCESS:
1379         case CMD_BBP_REG_ACCESS:
1380         case CMD_RF_REG_ACCESS:
1381                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1382                 break;
1383
1384         case CMD_802_11_RF_TX_POWER:
1385                 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1386                                                  cmd_action, pdata_buf);
1387                 break;
1388
1389         case CMD_802_11_RATE_ADAPT_RATESET:
1390                 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1391                                                          cmdptr, cmd_action);
1392                 break;
1393
1394         case CMD_MAC_MULTICAST_ADR:
1395                 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1396                 break;
1397
1398         case CMD_802_11_MONITOR_MODE:
1399                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1400                                           cmd_action, pdata_buf);
1401                 break;
1402
1403         case CMD_802_11_AD_HOC_JOIN:
1404                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1405                 break;
1406
1407         case CMD_802_11_RSSI:
1408                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1409                 break;
1410
1411         case CMD_802_11_AD_HOC_STOP:
1412                 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1413                 break;
1414
1415         case CMD_802_11_EEPROM_ACCESS:
1416                 ret = lbs_cmd_802_11_eeprom_access(cmdptr, pdata_buf);
1417                 break;
1418
1419         case CMD_802_11_SET_AFC:
1420         case CMD_802_11_GET_AFC:
1421
1422                 cmdptr->command = cpu_to_le16(cmd_no);
1423                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1424                                            S_DS_GEN);
1425
1426                 memmove(&cmdptr->params.afc,
1427                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1428
1429                 ret = 0;
1430                 goto done;
1431
1432         case CMD_802_11D_DOMAIN_INFO:
1433                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1434                                                    cmd_no, cmd_action);
1435                 break;
1436
1437         case CMD_802_11_TPC_CFG:
1438                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1439                 cmdptr->size =
1440                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1441                                      S_DS_GEN);
1442
1443                 memmove(&cmdptr->params.tpccfg,
1444                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1445
1446                 ret = 0;
1447                 break;
1448         case CMD_802_11_LED_GPIO_CTRL:
1449                 {
1450                         struct mrvlietypes_ledgpio *gpio =
1451                             (struct mrvlietypes_ledgpio*)
1452                             cmdptr->params.ledgpio.data;
1453
1454                         memmove(&cmdptr->params.ledgpio,
1455                                 pdata_buf,
1456                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1457
1458                         cmdptr->command =
1459                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1460
1461 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1462                         cmdptr->size =
1463                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1464                                 + S_DS_GEN
1465                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1466                         gpio->header.len = gpio->header.len;
1467
1468                         ret = 0;
1469                         break;
1470                 }
1471
1472         case CMD_BT_ACCESS:
1473                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1474                 break;
1475
1476         case CMD_FWT_ACCESS:
1477                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1478                 break;
1479
1480         case CMD_GET_TSF:
1481                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1482                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1483                                            S_DS_GEN);
1484                 ret = 0;
1485                 break;
1486         case CMD_802_11_BEACON_CTRL:
1487                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1488                 break;
1489         default:
1490                 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1491                 ret = -1;
1492                 break;
1493         }
1494
1495         /* return error, since the command preparation failed */
1496         if (ret != 0) {
1497                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1498                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1499                 ret = -1;
1500                 goto done;
1501         }
1502
1503         cmdnode->cmdwaitqwoken = 0;
1504
1505         lbs_queue_cmd(priv, cmdnode);
1506         wake_up_interruptible(&priv->waitq);
1507
1508         if (wait_option & CMD_OPTION_WAITFORRSP) {
1509                 lbs_deb_host("PREP_CMD: wait for response\n");
1510                 might_sleep();
1511                 wait_event_interruptible(cmdnode->cmdwait_q,
1512                                          cmdnode->cmdwaitqwoken);
1513         }
1514
1515         spin_lock_irqsave(&priv->driver_lock, flags);
1516         if (priv->cur_cmd_retcode) {
1517                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1518                        priv->cur_cmd_retcode);
1519                 priv->cur_cmd_retcode = 0;
1520                 ret = -1;
1521         }
1522         spin_unlock_irqrestore(&priv->driver_lock, flags);
1523
1524 done:
1525         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1526         return ret;
1527 }
1528
1529 /**
1530  *  @brief This function allocates the command buffer and link
1531  *  it to command free queue.
1532  *
1533  *  @param priv         A pointer to struct lbs_private structure
1534  *  @return             0 or -1
1535  */
1536 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1537 {
1538         int ret = 0;
1539         u32 bufsize;
1540         u32 i;
1541         struct cmd_ctrl_node *cmdarray;
1542
1543         lbs_deb_enter(LBS_DEB_HOST);
1544
1545         /* Allocate and initialize the command array */
1546         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1547         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1548                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1549                 ret = -1;
1550                 goto done;
1551         }
1552         priv->cmd_array = cmdarray;
1553
1554         /* Allocate and initialize each command buffer in the command array */
1555         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1556                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1557                 if (!cmdarray[i].cmdbuf) {
1558                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1559                         ret = -1;
1560                         goto done;
1561                 }
1562         }
1563
1564         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1565                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1566                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1567         }
1568         ret = 0;
1569
1570 done:
1571         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1572         return ret;
1573 }
1574
1575 /**
1576  *  @brief This function frees the command buffer.
1577  *
1578  *  @param priv         A pointer to struct lbs_private structure
1579  *  @return             0 or -1
1580  */
1581 int lbs_free_cmd_buffer(struct lbs_private *priv)
1582 {
1583         struct cmd_ctrl_node *cmdarray;
1584         unsigned int i;
1585
1586         lbs_deb_enter(LBS_DEB_HOST);
1587
1588         /* need to check if cmd array is allocated or not */
1589         if (priv->cmd_array == NULL) {
1590                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1591                 goto done;
1592         }
1593
1594         cmdarray = priv->cmd_array;
1595
1596         /* Release shared memory buffers */
1597         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1598                 if (cmdarray[i].cmdbuf) {
1599                         kfree(cmdarray[i].cmdbuf);
1600                         cmdarray[i].cmdbuf = NULL;
1601                 }
1602         }
1603
1604         /* Release cmd_ctrl_node */
1605         if (priv->cmd_array) {
1606                 kfree(priv->cmd_array);
1607                 priv->cmd_array = NULL;
1608         }
1609
1610 done:
1611         lbs_deb_leave(LBS_DEB_HOST);
1612         return 0;
1613 }
1614
1615 /**
1616  *  @brief This function gets a free command node if available in
1617  *  command free queue.
1618  *
1619  *  @param priv         A pointer to struct lbs_private structure
1620  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1621  */
1622 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1623 {
1624         struct cmd_ctrl_node *tempnode;
1625         unsigned long flags;
1626
1627         lbs_deb_enter(LBS_DEB_HOST);
1628
1629         if (!priv)
1630                 return NULL;
1631
1632         spin_lock_irqsave(&priv->driver_lock, flags);
1633
1634         if (!list_empty(&priv->cmdfreeq)) {
1635                 tempnode = list_first_entry(&priv->cmdfreeq,
1636                                             struct cmd_ctrl_node, list);
1637                 list_del(&tempnode->list);
1638         } else {
1639                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1640                 tempnode = NULL;
1641         }
1642
1643         spin_unlock_irqrestore(&priv->driver_lock, flags);
1644
1645         lbs_deb_leave(LBS_DEB_HOST);
1646         return tempnode;
1647 }
1648
1649 /**
1650  *  @brief This function executes next command in command
1651  *  pending queue. It will put fimware back to PS mode
1652  *  if applicable.
1653  *
1654  *  @param priv     A pointer to struct lbs_private structure
1655  *  @return        0 or -1
1656  */
1657 int lbs_execute_next_command(struct lbs_private *priv)
1658 {
1659         struct cmd_ctrl_node *cmdnode = NULL;
1660         struct cmd_header *cmd;
1661         unsigned long flags;
1662         int ret = 0;
1663
1664         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1665          * only caller to us is lbs_thread() and we get even when a
1666          * data packet is received */
1667         lbs_deb_enter(LBS_DEB_THREAD);
1668
1669         spin_lock_irqsave(&priv->driver_lock, flags);
1670
1671         if (priv->cur_cmd) {
1672                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1673                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1674                 ret = -1;
1675                 goto done;
1676         }
1677
1678         if (!list_empty(&priv->cmdpendingq)) {
1679                 cmdnode = list_first_entry(&priv->cmdpendingq,
1680                                            struct cmd_ctrl_node, list);
1681         }
1682
1683         spin_unlock_irqrestore(&priv->driver_lock, flags);
1684
1685         if (cmdnode) {
1686                 cmd = cmdnode->cmdbuf;
1687
1688                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1689                         if ((priv->psstate == PS_STATE_SLEEP) ||
1690                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1691                                 lbs_deb_host(
1692                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1693                                        le16_to_cpu(cmd->command),
1694                                        priv->psstate);
1695                                 ret = -1;
1696                                 goto done;
1697                         }
1698                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1699                                      "0x%04x in psstate %d\n",
1700                                      le16_to_cpu(cmd->command), priv->psstate);
1701                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1702                         /*
1703                          * 1. Non-PS command:
1704                          * Queue it. set needtowakeup to TRUE if current state
1705                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1706                          * 2. PS command but not Exit_PS:
1707                          * Ignore it.
1708                          * 3. PS command Exit_PS:
1709                          * Set needtowakeup to TRUE if current state is SLEEP,
1710                          * otherwise send this command down to firmware
1711                          * immediately.
1712                          */
1713                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1714                                 /*  Prepare to send Exit PS,
1715                                  *  this non PS command will be sent later */
1716                                 if ((priv->psstate == PS_STATE_SLEEP)
1717                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1718                                     ) {
1719                                         /* w/ new scheme, it will not reach here.
1720                                            since it is blocked in main_thread. */
1721                                         priv->needtowakeup = 1;
1722                                 } else
1723                                         lbs_ps_wakeup(priv, 0);
1724
1725                                 ret = 0;
1726                                 goto done;
1727                         } else {
1728                                 /*
1729                                  * PS command. Ignore it if it is not Exit_PS.
1730                                  * otherwise send it down immediately.
1731                                  */
1732                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1733
1734                                 lbs_deb_host(
1735                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1736                                        psm->action);
1737                                 if (psm->action !=
1738                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1739                                         lbs_deb_host(
1740                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1741                                         list_del(&cmdnode->list);
1742                                         spin_lock_irqsave(&priv->driver_lock, flags);
1743                                         lbs_complete_command(priv, cmdnode, 0);
1744                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1745
1746                                         ret = 0;
1747                                         goto done;
1748                                 }
1749
1750                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1751                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1752                                         lbs_deb_host(
1753                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1754                                         list_del(&cmdnode->list);
1755                                         spin_lock_irqsave(&priv->driver_lock, flags);
1756                                         lbs_complete_command(priv, cmdnode, 0);
1757                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1758                                         priv->needtowakeup = 1;
1759
1760                                         ret = 0;
1761                                         goto done;
1762                                 }
1763
1764                                 lbs_deb_host(
1765                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1766                         }
1767                 }
1768                 list_del(&cmdnode->list);
1769                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1770                             le16_to_cpu(cmd->command));
1771                 lbs_submit_command(priv, cmdnode);
1772         } else {
1773                 /*
1774                  * check if in power save mode, if yes, put the device back
1775                  * to PS mode
1776                  */
1777                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1778                     (priv->psstate == PS_STATE_FULL_POWER) &&
1779                     ((priv->connect_status == LBS_CONNECTED) ||
1780                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1781                         if (priv->secinfo.WPAenabled ||
1782                             priv->secinfo.WPA2enabled) {
1783                                 /* check for valid WPA group keys */
1784                                 if (priv->wpa_mcast_key.len ||
1785                                     priv->wpa_unicast_key.len) {
1786                                         lbs_deb_host(
1787                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1788                                                " go back to PS_SLEEP");
1789                                         lbs_ps_sleep(priv, 0);
1790                                 }
1791                         } else {
1792                                 lbs_deb_host(
1793                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1794                                        "go back to PS_SLEEP");
1795                                 lbs_ps_sleep(priv, 0);
1796                         }
1797                 }
1798         }
1799
1800         ret = 0;
1801 done:
1802         lbs_deb_leave(LBS_DEB_THREAD);
1803         return ret;
1804 }
1805
1806 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1807 {
1808         union iwreq_data iwrq;
1809         u8 buf[50];
1810
1811         lbs_deb_enter(LBS_DEB_WEXT);
1812
1813         memset(&iwrq, 0, sizeof(union iwreq_data));
1814         memset(buf, 0, sizeof(buf));
1815
1816         snprintf(buf, sizeof(buf) - 1, "%s", str);
1817
1818         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1819
1820         /* Send Event to upper layer */
1821         lbs_deb_wext("event indication string %s\n", (char *)buf);
1822         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1823         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1824
1825         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1826
1827         lbs_deb_leave(LBS_DEB_WEXT);
1828 }
1829
1830 static int sendconfirmsleep(struct lbs_private *priv, u8 *cmdptr, u16 size)
1831 {
1832         unsigned long flags;
1833         int ret = 0;
1834
1835         lbs_deb_enter(LBS_DEB_HOST);
1836         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm command", cmdptr, size);
1837
1838         ret = priv->hw_host_to_card(priv, MVMS_CMD, cmdptr, size);
1839
1840         spin_lock_irqsave(&priv->driver_lock, flags);
1841         if (priv->intcounter || priv->currenttxskb)
1842                 lbs_deb_host("SEND_SLEEPC_CMD: intcounter %d, currenttxskb %p\n",
1843                        priv->intcounter, priv->currenttxskb);
1844         spin_unlock_irqrestore(&priv->driver_lock, flags);
1845
1846         if (ret) {
1847                 lbs_pr_alert(
1848                        "SEND_SLEEPC_CMD: Host to Card failed for Confirm Sleep\n");
1849         } else {
1850                 spin_lock_irqsave(&priv->driver_lock, flags);
1851                 if (!priv->intcounter) {
1852                         priv->psstate = PS_STATE_SLEEP;
1853                 } else {
1854                         lbs_deb_host("SEND_SLEEPC_CMD: after sent, intcounter %d\n",
1855                                priv->intcounter);
1856                 }
1857                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1858         }
1859
1860         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1861         return ret;
1862 }
1863
1864 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1865 {
1866         lbs_deb_enter(LBS_DEB_HOST);
1867
1868         /*
1869          * PS is currently supported only in Infrastructure mode
1870          * Remove this check if it is to be supported in IBSS mode also
1871          */
1872
1873         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1874                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1875
1876         lbs_deb_leave(LBS_DEB_HOST);
1877 }
1878
1879 /**
1880  *  @brief This function sends Exit_PS command to firmware.
1881  *
1882  *  @param priv         A pointer to struct lbs_private structure
1883  *  @param wait_option  wait response or not
1884  *  @return             n/a
1885  */
1886 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1887 {
1888         __le32 Localpsmode;
1889
1890         lbs_deb_enter(LBS_DEB_HOST);
1891
1892         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1893
1894         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1895                               CMD_SUBCMD_EXIT_PS,
1896                               wait_option, 0, &Localpsmode);
1897
1898         lbs_deb_leave(LBS_DEB_HOST);
1899 }
1900
1901 /**
1902  *  @brief This function checks condition and prepares to
1903  *  send sleep confirm command to firmware if ok.
1904  *
1905  *  @param priv         A pointer to struct lbs_private structure
1906  *  @param psmode       Power Saving mode
1907  *  @return             n/a
1908  */
1909 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1910 {
1911         unsigned long flags =0;
1912         int allowed = 1;
1913
1914         lbs_deb_enter(LBS_DEB_HOST);
1915
1916         if (priv->dnld_sent) {
1917                 allowed = 0;
1918                 lbs_deb_host("dnld_sent was set\n");
1919         }
1920
1921         spin_lock_irqsave(&priv->driver_lock, flags);
1922         if (priv->cur_cmd) {
1923                 allowed = 0;
1924                 lbs_deb_host("cur_cmd was set\n");
1925         }
1926         if (priv->intcounter > 0) {
1927                 allowed = 0;
1928                 lbs_deb_host("intcounter %d\n", priv->intcounter);
1929         }
1930         spin_unlock_irqrestore(&priv->driver_lock, flags);
1931
1932         if (allowed) {
1933                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1934                 sendconfirmsleep(priv, (u8 *) & priv->lbs_ps_confirm_sleep,
1935                                  sizeof(struct PS_CMD_ConfirmSleep));
1936         } else {
1937                 lbs_deb_host("sleep confirm has been delayed\n");
1938         }
1939
1940         lbs_deb_leave(LBS_DEB_HOST);
1941 }
1942
1943
1944 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1945         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1946         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1947         unsigned long callback_arg)
1948 {
1949         struct cmd_ctrl_node *cmdnode;
1950
1951         lbs_deb_enter(LBS_DEB_HOST);
1952
1953         if (priv->surpriseremoved) {
1954                 lbs_deb_host("PREP_CMD: card removed\n");
1955                 cmdnode = ERR_PTR(-ENOENT);
1956                 goto done;
1957         }
1958
1959         cmdnode = lbs_get_cmd_ctrl_node(priv);
1960         if (cmdnode == NULL) {
1961                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1962
1963                 /* Wake up main thread to execute next command */
1964                 wake_up_interruptible(&priv->waitq);
1965                 cmdnode = ERR_PTR(-ENOBUFS);
1966                 goto done;
1967         }
1968
1969         cmdnode->callback = callback;
1970         cmdnode->callback_arg = callback_arg;
1971
1972         /* Copy the incoming command to the buffer */
1973         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1974
1975         /* Set sequence number, clean result, move to buffer */
1976         priv->seqnum++;
1977         cmdnode->cmdbuf->command = cpu_to_le16(command);
1978         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
1979         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
1980         cmdnode->cmdbuf->result  = 0;
1981
1982         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1983
1984         cmdnode->cmdwaitqwoken = 0;
1985         lbs_queue_cmd(priv, cmdnode);
1986         wake_up_interruptible(&priv->waitq);
1987
1988  done:
1989         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1990         return cmdnode;
1991 }
1992
1993 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1994         struct cmd_header *in_cmd, int in_cmd_size)
1995 {
1996         lbs_deb_enter(LBS_DEB_CMD);
1997         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1998                 lbs_cmd_async_callback, 0);
1999         lbs_deb_leave(LBS_DEB_CMD);
2000 }
2001
2002 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2003               struct cmd_header *in_cmd, int in_cmd_size,
2004               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2005               unsigned long callback_arg)
2006 {
2007         struct cmd_ctrl_node *cmdnode;
2008         unsigned long flags;
2009         int ret = 0;
2010
2011         lbs_deb_enter(LBS_DEB_HOST);
2012
2013         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2014                                   callback, callback_arg);
2015         if (IS_ERR(cmdnode)) {
2016                 ret = PTR_ERR(cmdnode);
2017                 goto done;
2018         }
2019
2020         might_sleep();
2021         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2022
2023         spin_lock_irqsave(&priv->driver_lock, flags);
2024         ret = cmdnode->result;
2025         if (ret)
2026                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2027                             command, ret);
2028
2029         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2030         spin_unlock_irqrestore(&priv->driver_lock, flags);
2031
2032 done:
2033         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2034         return ret;
2035 }
2036 EXPORT_SYMBOL_GPL(__lbs_cmd);
2037
2038