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_mac_address(struct lbs_private *priv,
 957                                        struct cmd_ds_command *cmd,
 958                                        u16 cmd_action)
 959 {
 960
 961         lbs_deb_enter(LBS_DEB_CMD);
 962         cmd->command = cpu_to_le16(CMD_802_11_MAC_ADDRESS);
 963         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_mac_address) +
 964                              S_DS_GEN);
 965         cmd->result = 0;
 966
 967         cmd->params.macadd.action = cpu_to_le16(cmd_action);
 968
 969         if (cmd_action == CMD_ACT_SET) {
 970                 memcpy(cmd->params.macadd.macadd,
 971                        priv->current_addr, ETH_ALEN);
 972                 lbs_deb_hex(LBS_DEB_CMD, "SET_CMD: MAC addr", priv->current_addr, 6);
 973         }
 974
 975         lbs_deb_leave(LBS_DEB_CMD);
 976         return 0;
 977 }
 978
 979 static int lbs_cmd_802_11_eeprom_access(struct cmd_ds_command *cmd,
 980                                         void *pdata_buf)
 981 {
 982         struct lbs_ioctl_regrdwr *ea = pdata_buf;
 983
 984         lbs_deb_enter(LBS_DEB_CMD);
 985
 986         cmd->command = cpu_to_le16(CMD_802_11_EEPROM_ACCESS);
 987         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) +
 988                                 S_DS_GEN);
 989         cmd->result = 0;
 990
 991         cmd->params.rdeeprom.action = cpu_to_le16(ea->action);
 992         cmd->params.rdeeprom.offset = cpu_to_le16(ea->offset);
 993         cmd->params.rdeeprom.bytecount = cpu_to_le16(ea->NOB);
 994         cmd->params.rdeeprom.value = 0;
 995
 996         lbs_deb_leave(LBS_DEB_CMD);
 997         return 0;
 998 }
 999
1000 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
1001                                u16 cmd_action, void *pdata_buf)
1002 {
1003         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
1004         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1005
1006         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
1007         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
1008         cmd->result = 0;
1009         bt_access->action = cpu_to_le16(cmd_action);
1010
1011         switch (cmd_action) {
1012         case CMD_ACT_BT_ACCESS_ADD:
1013                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
1014                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
1015                 break;
1016         case CMD_ACT_BT_ACCESS_DEL:
1017                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
1018                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
1019                 break;
1020         case CMD_ACT_BT_ACCESS_LIST:
1021                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1022                 break;
1023         case CMD_ACT_BT_ACCESS_RESET:
1024                 break;
1025         case CMD_ACT_BT_ACCESS_SET_INVERT:
1026                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1027                 break;
1028         case CMD_ACT_BT_ACCESS_GET_INVERT:
1029                 break;
1030         default:
1031                 break;
1032         }
1033         lbs_deb_leave(LBS_DEB_CMD);
1034         return 0;
1035 }
1036
1037 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1038                                u16 cmd_action, void *pdata_buf)
1039 {
1040         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1041         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1042
1043         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1044         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1045         cmd->result = 0;
1046
1047         if (pdata_buf)
1048                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1049         else
1050                 memset(fwt_access, 0, sizeof(*fwt_access));
1051
1052         fwt_access->action = cpu_to_le16(cmd_action);
1053
1054         lbs_deb_leave(LBS_DEB_CMD);
1055         return 0;
1056 }
1057
1058 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1059                     struct cmd_ds_mesh_access *cmd)
1060 {
1061         int ret;
1062
1063         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1064
1065         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1066         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1067         cmd->hdr.result = 0;
1068
1069         cmd->action = cpu_to_le16(cmd_action);
1070
1071         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1072
1073         lbs_deb_leave(LBS_DEB_CMD);
1074         return ret;
1075 }
1076
1077 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1078 {
1079         struct cmd_ds_mesh_config cmd;
1080
1081         memset(&cmd, 0, sizeof(cmd));
1082         cmd.action = cpu_to_le16(enable);
1083         cmd.channel = cpu_to_le16(chan);
1084         cmd.type = cpu_to_le16(priv->mesh_tlv);
1085         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1086
1087         if (enable) {
1088                 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1089                 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1090         }
1091         lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1092                     enable, priv->mesh_tlv, chan,
1093                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1094         return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1095 }
1096
1097 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1098                                 struct cmd_ds_command *cmd,
1099                                 u16 cmd_action)
1100 {
1101         struct cmd_ds_802_11_beacon_control
1102                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1103
1104         lbs_deb_enter(LBS_DEB_CMD);
1105         cmd->size =
1106             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1107                              + S_DS_GEN);
1108         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1109
1110         bcn_ctrl->action = cpu_to_le16(cmd_action);
1111         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1112         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1113
1114         lbs_deb_leave(LBS_DEB_CMD);
1115         return 0;
1116 }
1117
1118 static void lbs_queue_cmd(struct lbs_private *priv,
1119                           struct cmd_ctrl_node *cmdnode)
1120 {
1121         unsigned long flags;
1122         int addtail = 1;
1123
1124         lbs_deb_enter(LBS_DEB_HOST);
1125
1126         if (!cmdnode) {
1127                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1128                 goto done;
1129         }
1130         if (!cmdnode->cmdbuf->size) {
1131                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1132                 goto done;
1133         }
1134         cmdnode->result = 0;
1135
1136         /* Exit_PS command needs to be queued in the header always. */
1137         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1138                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1139
1140                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1141                         if (priv->psstate != PS_STATE_FULL_POWER)
1142                                 addtail = 0;
1143                 }
1144         }
1145
1146         spin_lock_irqsave(&priv->driver_lock, flags);
1147
1148         if (addtail)
1149                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1150         else
1151                 list_add(&cmdnode->list, &priv->cmdpendingq);
1152
1153         spin_unlock_irqrestore(&priv->driver_lock, flags);
1154
1155         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1156                      le16_to_cpu(cmdnode->cmdbuf->command));
1157
1158 done:
1159         lbs_deb_leave(LBS_DEB_HOST);
1160 }
1161
1162 static void lbs_submit_command(struct lbs_private *priv,
1163                                struct cmd_ctrl_node *cmdnode)
1164 {
1165         unsigned long flags;
1166         struct cmd_header *cmd;
1167         uint16_t cmdsize;
1168         uint16_t command;
1169         int timeo = 5 * HZ;
1170         int ret;
1171
1172         lbs_deb_enter(LBS_DEB_HOST);
1173
1174         cmd = cmdnode->cmdbuf;
1175
1176         spin_lock_irqsave(&priv->driver_lock, flags);
1177         priv->cur_cmd = cmdnode;
1178         priv->cur_cmd_retcode = 0;
1179         spin_unlock_irqrestore(&priv->driver_lock, flags);
1180
1181         cmdsize = le16_to_cpu(cmd->size);
1182         command = le16_to_cpu(cmd->command);
1183
1184         /* These commands take longer */
1185         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1186             command == CMD_802_11_AUTHENTICATE)
1187                 timeo = 10 * HZ;
1188
1189         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d, jiffies %lu\n",
1190                      command, le16_to_cpu(cmd->seqnum), cmdsize, jiffies);
1191         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1192
1193         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1194
1195         if (ret) {
1196                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1197                 /* Let the timer kick in and retry, and potentially reset
1198                    the whole thing if the condition persists */
1199                 timeo = HZ;
1200         }
1201
1202         /* Setup the timer after transmit command */
1203         mod_timer(&priv->command_timer, jiffies + timeo);
1204
1205         lbs_deb_leave(LBS_DEB_HOST);
1206 }
1207
1208 /**
1209  *  This function inserts command node to cmdfreeq
1210  *  after cleans it. Requires priv->driver_lock held.
1211  */
1212 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1213                                          struct cmd_ctrl_node *cmdnode)
1214 {
1215         lbs_deb_enter(LBS_DEB_HOST);
1216
1217         if (!cmdnode)
1218                 goto out;
1219
1220         cmdnode->callback = NULL;
1221         cmdnode->callback_arg = 0;
1222
1223         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1224
1225         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1226  out:
1227         lbs_deb_leave(LBS_DEB_HOST);
1228 }
1229
1230 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1231         struct cmd_ctrl_node *ptempcmd)
1232 {
1233         unsigned long flags;
1234
1235         spin_lock_irqsave(&priv->driver_lock, flags);
1236         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1237         spin_unlock_irqrestore(&priv->driver_lock, flags);
1238 }
1239
1240 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1241                           int result)
1242 {
1243         if (cmd == priv->cur_cmd)
1244                 priv->cur_cmd_retcode = result;
1245
1246         cmd->result = result;
1247         cmd->cmdwaitqwoken = 1;
1248         wake_up_interruptible(&cmd->cmdwait_q);
1249
1250         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1251                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1252         priv->cur_cmd = NULL;
1253 }
1254
1255 int lbs_set_radio_control(struct lbs_private *priv)
1256 {
1257         int ret = 0;
1258         struct cmd_ds_802_11_radio_control cmd;
1259
1260         lbs_deb_enter(LBS_DEB_CMD);
1261
1262         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1263         cmd.action = cpu_to_le16(CMD_ACT_SET);
1264
1265         switch (priv->preamble) {
1266         case CMD_TYPE_SHORT_PREAMBLE:
1267                 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1268                 break;
1269
1270         case CMD_TYPE_LONG_PREAMBLE:
1271                 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1272                 break;
1273
1274         case CMD_TYPE_AUTO_PREAMBLE:
1275         default:
1276                 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1277                 break;
1278         }
1279
1280         if (priv->radioon)
1281                 cmd.control |= cpu_to_le16(TURN_ON_RF);
1282         else
1283                 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1284
1285         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1286                     priv->preamble);
1287
1288         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1289
1290         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1291         return ret;
1292 }
1293
1294 void lbs_set_mac_control(struct lbs_private *priv)
1295 {
1296         struct cmd_ds_mac_control cmd;
1297
1298         lbs_deb_enter(LBS_DEB_CMD);
1299
1300         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1301         cmd.action = cpu_to_le16(priv->mac_control);
1302         cmd.reserved = 0;
1303
1304         lbs_cmd_async(priv, CMD_MAC_CONTROL,
1305                 &cmd.hdr, sizeof(cmd));
1306
1307         lbs_deb_leave(LBS_DEB_CMD);
1308 }
1309
1310 /**
1311  *  @brief This function prepare the command before send to firmware.
1312  *
1313  *  @param priv         A pointer to struct lbs_private structure
1314  *  @param cmd_no       command number
1315  *  @param cmd_action   command action: GET or SET
1316  *  @param wait_option  wait option: wait response or not
1317  *  @param cmd_oid      cmd oid: treated as sub command
1318  *  @param pdata_buf    A pointer to informaion buffer
1319  *  @return             0 or -1
1320  */
1321 int lbs_prepare_and_send_command(struct lbs_private *priv,
1322                           u16 cmd_no,
1323                           u16 cmd_action,
1324                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1325 {
1326         int ret = 0;
1327         struct cmd_ctrl_node *cmdnode;
1328         struct cmd_ds_command *cmdptr;
1329         unsigned long flags;
1330
1331         lbs_deb_enter(LBS_DEB_HOST);
1332
1333         if (!priv) {
1334                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1335                 ret = -1;
1336                 goto done;
1337         }
1338
1339         if (priv->surpriseremoved) {
1340                 lbs_deb_host("PREP_CMD: card removed\n");
1341                 ret = -1;
1342                 goto done;
1343         }
1344
1345         cmdnode = lbs_get_cmd_ctrl_node(priv);
1346
1347         if (cmdnode == NULL) {
1348                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1349
1350                 /* Wake up main thread to execute next command */
1351                 wake_up_interruptible(&priv->waitq);
1352                 ret = -1;
1353                 goto done;
1354         }
1355
1356         cmdnode->callback = NULL;
1357         cmdnode->callback_arg = (unsigned long)pdata_buf;
1358
1359         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1360
1361         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1362
1363         /* Set sequence number, command and INT option */
1364         priv->seqnum++;
1365         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1366
1367         cmdptr->command = cpu_to_le16(cmd_no);
1368         cmdptr->result = 0;
1369
1370         switch (cmd_no) {
1371         case CMD_802_11_PS_MODE:
1372                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1373                 break;
1374
1375         case CMD_802_11_ASSOCIATE:
1376         case CMD_802_11_REASSOCIATE:
1377                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1378                 break;
1379
1380         case CMD_802_11_DEAUTHENTICATE:
1381                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1382                 break;
1383
1384         case CMD_802_11_AD_HOC_START:
1385                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1386                 break;
1387
1388         case CMD_802_11_RESET:
1389                 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1390                 break;
1391
1392         case CMD_802_11_AUTHENTICATE:
1393                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1394                 break;
1395
1396         case CMD_802_11_SNMP_MIB:
1397                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1398                                                cmd_action, cmd_oid, pdata_buf);
1399                 break;
1400
1401         case CMD_MAC_REG_ACCESS:
1402         case CMD_BBP_REG_ACCESS:
1403         case CMD_RF_REG_ACCESS:
1404                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1405                 break;
1406
1407         case CMD_802_11_RF_TX_POWER:
1408                 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1409                                                  cmd_action, pdata_buf);
1410                 break;
1411
1412         case CMD_802_11_RATE_ADAPT_RATESET:
1413                 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1414                                                          cmdptr, cmd_action);
1415                 break;
1416
1417         case CMD_MAC_MULTICAST_ADR:
1418                 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1419                 break;
1420
1421         case CMD_802_11_MONITOR_MODE:
1422                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1423                                           cmd_action, pdata_buf);
1424                 break;
1425
1426         case CMD_802_11_AD_HOC_JOIN:
1427                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1428                 break;
1429
1430         case CMD_802_11_RSSI:
1431                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1432                 break;
1433
1434         case CMD_802_11_AD_HOC_STOP:
1435                 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1436                 break;
1437
1438         case CMD_802_11_MAC_ADDRESS:
1439                 ret = lbs_cmd_802_11_mac_address(priv, cmdptr, cmd_action);
1440                 break;
1441
1442         case CMD_802_11_EEPROM_ACCESS:
1443                 ret = lbs_cmd_802_11_eeprom_access(cmdptr, pdata_buf);
1444                 break;
1445
1446         case CMD_802_11_SET_AFC:
1447         case CMD_802_11_GET_AFC:
1448
1449                 cmdptr->command = cpu_to_le16(cmd_no);
1450                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1451                                            S_DS_GEN);
1452
1453                 memmove(&cmdptr->params.afc,
1454                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1455
1456                 ret = 0;
1457                 goto done;
1458
1459         case CMD_802_11D_DOMAIN_INFO:
1460                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1461                                                    cmd_no, cmd_action);
1462                 break;
1463
1464         case CMD_802_11_TPC_CFG:
1465                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1466                 cmdptr->size =
1467                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1468                                      S_DS_GEN);
1469
1470                 memmove(&cmdptr->params.tpccfg,
1471                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1472
1473                 ret = 0;
1474                 break;
1475         case CMD_802_11_LED_GPIO_CTRL:
1476                 {
1477                         struct mrvlietypes_ledgpio *gpio =
1478                             (struct mrvlietypes_ledgpio*)
1479                             cmdptr->params.ledgpio.data;
1480
1481                         memmove(&cmdptr->params.ledgpio,
1482                                 pdata_buf,
1483                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1484
1485                         cmdptr->command =
1486                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1487
1488 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1489                         cmdptr->size =
1490                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1491                                 + S_DS_GEN
1492                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1493                         gpio->header.len = gpio->header.len;
1494
1495                         ret = 0;
1496                         break;
1497                 }
1498
1499         case CMD_802_11_PWR_CFG:
1500                 cmdptr->command = cpu_to_le16(CMD_802_11_PWR_CFG);
1501                 cmdptr->size =
1502                     cpu_to_le16(sizeof(struct cmd_ds_802_11_pwr_cfg) +
1503                                      S_DS_GEN);
1504                 memmove(&cmdptr->params.pwrcfg, pdata_buf,
1505                         sizeof(struct cmd_ds_802_11_pwr_cfg));
1506
1507                 ret = 0;
1508                 break;
1509         case CMD_BT_ACCESS:
1510                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1511                 break;
1512
1513         case CMD_FWT_ACCESS:
1514                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1515                 break;
1516
1517         case CMD_GET_TSF:
1518                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1519                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1520                                            S_DS_GEN);
1521                 ret = 0;
1522                 break;
1523         case CMD_802_11_BEACON_CTRL:
1524                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1525                 break;
1526         default:
1527                 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1528                 ret = -1;
1529                 break;
1530         }
1531
1532         /* return error, since the command preparation failed */
1533         if (ret != 0) {
1534                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1535                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1536                 ret = -1;
1537                 goto done;
1538         }
1539
1540         cmdnode->cmdwaitqwoken = 0;
1541
1542         lbs_queue_cmd(priv, cmdnode);
1543         wake_up_interruptible(&priv->waitq);
1544
1545         if (wait_option & CMD_OPTION_WAITFORRSP) {
1546                 lbs_deb_host("PREP_CMD: wait for response\n");
1547                 might_sleep();
1548                 wait_event_interruptible(cmdnode->cmdwait_q,
1549                                          cmdnode->cmdwaitqwoken);
1550         }
1551
1552         spin_lock_irqsave(&priv->driver_lock, flags);
1553         if (priv->cur_cmd_retcode) {
1554                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1555                        priv->cur_cmd_retcode);
1556                 priv->cur_cmd_retcode = 0;
1557                 ret = -1;
1558         }
1559         spin_unlock_irqrestore(&priv->driver_lock, flags);
1560
1561 done:
1562         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1563         return ret;
1564 }
1565
1566 /**
1567  *  @brief This function allocates the command buffer and link
1568  *  it to command free queue.
1569  *
1570  *  @param priv         A pointer to struct lbs_private structure
1571  *  @return             0 or -1
1572  */
1573 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1574 {
1575         int ret = 0;
1576         u32 bufsize;
1577         u32 i;
1578         struct cmd_ctrl_node *cmdarray;
1579
1580         lbs_deb_enter(LBS_DEB_HOST);
1581
1582         /* Allocate and initialize the command array */
1583         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1584         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1585                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1586                 ret = -1;
1587                 goto done;
1588         }
1589         priv->cmd_array = cmdarray;
1590
1591         /* Allocate and initialize each command buffer in the command array */
1592         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1593                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1594                 if (!cmdarray[i].cmdbuf) {
1595                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1596                         ret = -1;
1597                         goto done;
1598                 }
1599         }
1600
1601         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1602                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1603                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1604         }
1605         ret = 0;
1606
1607 done:
1608         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1609         return ret;
1610 }
1611
1612 /**
1613  *  @brief This function frees the command buffer.
1614  *
1615  *  @param priv         A pointer to struct lbs_private structure
1616  *  @return             0 or -1
1617  */
1618 int lbs_free_cmd_buffer(struct lbs_private *priv)
1619 {
1620         struct cmd_ctrl_node *cmdarray;
1621         unsigned int i;
1622
1623         lbs_deb_enter(LBS_DEB_HOST);
1624
1625         /* need to check if cmd array is allocated or not */
1626         if (priv->cmd_array == NULL) {
1627                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1628                 goto done;
1629         }
1630
1631         cmdarray = priv->cmd_array;
1632
1633         /* Release shared memory buffers */
1634         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1635                 if (cmdarray[i].cmdbuf) {
1636                         kfree(cmdarray[i].cmdbuf);
1637                         cmdarray[i].cmdbuf = NULL;
1638                 }
1639         }
1640
1641         /* Release cmd_ctrl_node */
1642         if (priv->cmd_array) {
1643                 kfree(priv->cmd_array);
1644                 priv->cmd_array = NULL;
1645         }
1646
1647 done:
1648         lbs_deb_leave(LBS_DEB_HOST);
1649         return 0;
1650 }
1651
1652 /**
1653  *  @brief This function gets a free command node if available in
1654  *  command free queue.
1655  *
1656  *  @param priv         A pointer to struct lbs_private structure
1657  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1658  */
1659 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1660 {
1661         struct cmd_ctrl_node *tempnode;
1662         unsigned long flags;
1663
1664         lbs_deb_enter(LBS_DEB_HOST);
1665
1666         if (!priv)
1667                 return NULL;
1668
1669         spin_lock_irqsave(&priv->driver_lock, flags);
1670
1671         if (!list_empty(&priv->cmdfreeq)) {
1672                 tempnode = list_first_entry(&priv->cmdfreeq,
1673                                             struct cmd_ctrl_node, list);
1674                 list_del(&tempnode->list);
1675         } else {
1676                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1677                 tempnode = NULL;
1678         }
1679
1680         spin_unlock_irqrestore(&priv->driver_lock, flags);
1681
1682         lbs_deb_leave(LBS_DEB_HOST);
1683         return tempnode;
1684 }
1685
1686 /**
1687  *  @brief This function executes next command in command
1688  *  pending queue. It will put fimware back to PS mode
1689  *  if applicable.
1690  *
1691  *  @param priv     A pointer to struct lbs_private structure
1692  *  @return        0 or -1
1693  */
1694 int lbs_execute_next_command(struct lbs_private *priv)
1695 {
1696         struct cmd_ctrl_node *cmdnode = NULL;
1697         struct cmd_header *cmd;
1698         unsigned long flags;
1699         int ret = 0;
1700
1701         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1702          * only caller to us is lbs_thread() and we get even when a
1703          * data packet is received */
1704         lbs_deb_enter(LBS_DEB_THREAD);
1705
1706         spin_lock_irqsave(&priv->driver_lock, flags);
1707
1708         if (priv->cur_cmd) {
1709                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1710                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1711                 ret = -1;
1712                 goto done;
1713         }
1714
1715         if (!list_empty(&priv->cmdpendingq)) {
1716                 cmdnode = list_first_entry(&priv->cmdpendingq,
1717                                            struct cmd_ctrl_node, list);
1718         }
1719
1720         spin_unlock_irqrestore(&priv->driver_lock, flags);
1721
1722         if (cmdnode) {
1723                 cmd = cmdnode->cmdbuf;
1724
1725                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1726                         if ((priv->psstate == PS_STATE_SLEEP) ||
1727                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1728                                 lbs_deb_host(
1729                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1730                                        le16_to_cpu(cmd->command),
1731                                        priv->psstate);
1732                                 ret = -1;
1733                                 goto done;
1734                         }
1735                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1736                                      "0x%04x in psstate %d\n",
1737                                      le16_to_cpu(cmd->command), priv->psstate);
1738                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1739                         /*
1740                          * 1. Non-PS command:
1741                          * Queue it. set needtowakeup to TRUE if current state
1742                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1743                          * 2. PS command but not Exit_PS:
1744                          * Ignore it.
1745                          * 3. PS command Exit_PS:
1746                          * Set needtowakeup to TRUE if current state is SLEEP,
1747                          * otherwise send this command down to firmware
1748                          * immediately.
1749                          */
1750                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1751                                 /*  Prepare to send Exit PS,
1752                                  *  this non PS command will be sent later */
1753                                 if ((priv->psstate == PS_STATE_SLEEP)
1754                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1755                                     ) {
1756                                         /* w/ new scheme, it will not reach here.
1757                                            since it is blocked in main_thread. */
1758                                         priv->needtowakeup = 1;
1759                                 } else
1760                                         lbs_ps_wakeup(priv, 0);
1761
1762                                 ret = 0;
1763                                 goto done;
1764                         } else {
1765                                 /*
1766                                  * PS command. Ignore it if it is not Exit_PS.
1767                                  * otherwise send it down immediately.
1768                                  */
1769                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1770
1771                                 lbs_deb_host(
1772                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1773                                        psm->action);
1774                                 if (psm->action !=
1775                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1776                                         lbs_deb_host(
1777                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1778                                         list_del(&cmdnode->list);
1779                                         spin_lock_irqsave(&priv->driver_lock, flags);
1780                                         lbs_complete_command(priv, cmdnode, 0);
1781                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1782
1783                                         ret = 0;
1784                                         goto done;
1785                                 }
1786
1787                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1788                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1789                                         lbs_deb_host(
1790                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1791                                         list_del(&cmdnode->list);
1792                                         spin_lock_irqsave(&priv->driver_lock, flags);
1793                                         lbs_complete_command(priv, cmdnode, 0);
1794                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1795                                         priv->needtowakeup = 1;
1796
1797                                         ret = 0;
1798                                         goto done;
1799                                 }
1800
1801                                 lbs_deb_host(
1802                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1803                         }
1804                 }
1805                 list_del(&cmdnode->list);
1806                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1807                             le16_to_cpu(cmd->command));
1808                 lbs_submit_command(priv, cmdnode);
1809         } else {
1810                 /*
1811                  * check if in power save mode, if yes, put the device back
1812                  * to PS mode
1813                  */
1814                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1815                     (priv->psstate == PS_STATE_FULL_POWER) &&
1816                     ((priv->connect_status == LBS_CONNECTED) ||
1817                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1818                         if (priv->secinfo.WPAenabled ||
1819                             priv->secinfo.WPA2enabled) {
1820                                 /* check for valid WPA group keys */
1821                                 if (priv->wpa_mcast_key.len ||
1822                                     priv->wpa_unicast_key.len) {
1823                                         lbs_deb_host(
1824                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1825                                                " go back to PS_SLEEP");
1826                                         lbs_ps_sleep(priv, 0);
1827                                 }
1828                         } else {
1829                                 lbs_deb_host(
1830                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1831                                        "go back to PS_SLEEP");
1832                                 lbs_ps_sleep(priv, 0);
1833                         }
1834                 }
1835         }
1836
1837         ret = 0;
1838 done:
1839         lbs_deb_leave(LBS_DEB_THREAD);
1840         return ret;
1841 }
1842
1843 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1844 {
1845         union iwreq_data iwrq;
1846         u8 buf[50];
1847
1848         lbs_deb_enter(LBS_DEB_WEXT);
1849
1850         memset(&iwrq, 0, sizeof(union iwreq_data));
1851         memset(buf, 0, sizeof(buf));
1852
1853         snprintf(buf, sizeof(buf) - 1, "%s", str);
1854
1855         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1856
1857         /* Send Event to upper layer */
1858         lbs_deb_wext("event indication string %s\n", (char *)buf);
1859         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1860         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1861
1862         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1863
1864         lbs_deb_leave(LBS_DEB_WEXT);
1865 }
1866
1867 static int sendconfirmsleep(struct lbs_private *priv, u8 *cmdptr, u16 size)
1868 {
1869         unsigned long flags;
1870         int ret = 0;
1871
1872         lbs_deb_enter(LBS_DEB_HOST);
1873         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm command", cmdptr, size);
1874
1875         ret = priv->hw_host_to_card(priv, MVMS_CMD, cmdptr, size);
1876
1877         spin_lock_irqsave(&priv->driver_lock, flags);
1878         if (priv->intcounter || priv->currenttxskb)
1879                 lbs_deb_host("SEND_SLEEPC_CMD: intcounter %d, currenttxskb %p\n",
1880                        priv->intcounter, priv->currenttxskb);
1881         spin_unlock_irqrestore(&priv->driver_lock, flags);
1882
1883         if (ret) {
1884                 lbs_pr_alert(
1885                        "SEND_SLEEPC_CMD: Host to Card failed for Confirm Sleep\n");
1886         } else {
1887                 spin_lock_irqsave(&priv->driver_lock, flags);
1888                 if (!priv->intcounter) {
1889                         priv->psstate = PS_STATE_SLEEP;
1890                 } else {
1891                         lbs_deb_host("SEND_SLEEPC_CMD: after sent, intcounter %d\n",
1892                                priv->intcounter);
1893                 }
1894                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1895         }
1896
1897         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1898         return ret;
1899 }
1900
1901 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1902 {
1903         lbs_deb_enter(LBS_DEB_HOST);
1904
1905         /*
1906          * PS is currently supported only in Infrastructure mode
1907          * Remove this check if it is to be supported in IBSS mode also
1908          */
1909
1910         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1911                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1912
1913         lbs_deb_leave(LBS_DEB_HOST);
1914 }
1915
1916 /**
1917  *  @brief This function sends Exit_PS command to firmware.
1918  *
1919  *  @param priv         A pointer to struct lbs_private structure
1920  *  @param wait_option  wait response or not
1921  *  @return             n/a
1922  */
1923 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1924 {
1925         __le32 Localpsmode;
1926
1927         lbs_deb_enter(LBS_DEB_HOST);
1928
1929         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1930
1931         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1932                               CMD_SUBCMD_EXIT_PS,
1933                               wait_option, 0, &Localpsmode);
1934
1935         lbs_deb_leave(LBS_DEB_HOST);
1936 }
1937
1938 /**
1939  *  @brief This function checks condition and prepares to
1940  *  send sleep confirm command to firmware if ok.
1941  *
1942  *  @param priv         A pointer to struct lbs_private structure
1943  *  @param psmode       Power Saving mode
1944  *  @return             n/a
1945  */
1946 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1947 {
1948         unsigned long flags =0;
1949         int allowed = 1;
1950
1951         lbs_deb_enter(LBS_DEB_HOST);
1952
1953         if (priv->dnld_sent) {
1954                 allowed = 0;
1955                 lbs_deb_host("dnld_sent was set\n");
1956         }
1957
1958         spin_lock_irqsave(&priv->driver_lock, flags);
1959         if (priv->cur_cmd) {
1960                 allowed = 0;
1961                 lbs_deb_host("cur_cmd was set\n");
1962         }
1963         if (priv->intcounter > 0) {
1964                 allowed = 0;
1965                 lbs_deb_host("intcounter %d\n", priv->intcounter);
1966         }
1967         spin_unlock_irqrestore(&priv->driver_lock, flags);
1968
1969         if (allowed) {
1970                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1971                 sendconfirmsleep(priv, (u8 *) & priv->lbs_ps_confirm_sleep,
1972                                  sizeof(struct PS_CMD_ConfirmSleep));
1973         } else {
1974                 lbs_deb_host("sleep confirm has been delayed\n");
1975         }
1976
1977         lbs_deb_leave(LBS_DEB_HOST);
1978 }
1979
1980
1981 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1982         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1983         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1984         unsigned long callback_arg)
1985 {
1986         struct cmd_ctrl_node *cmdnode;
1987
1988         lbs_deb_enter(LBS_DEB_HOST);
1989
1990         if (priv->surpriseremoved) {
1991                 lbs_deb_host("PREP_CMD: card removed\n");
1992                 cmdnode = ERR_PTR(-ENOENT);
1993                 goto done;
1994         }
1995
1996         cmdnode = lbs_get_cmd_ctrl_node(priv);
1997         if (cmdnode == NULL) {
1998                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1999
2000                 /* Wake up main thread to execute next command */
2001                 wake_up_interruptible(&priv->waitq);
2002                 cmdnode = ERR_PTR(-ENOBUFS);
2003                 goto done;
2004         }
2005
2006         cmdnode->callback = callback;
2007         cmdnode->callback_arg = callback_arg;
2008
2009         /* Copy the incoming command to the buffer */
2010         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2011
2012         /* Set sequence number, clean result, move to buffer */
2013         priv->seqnum++;
2014         cmdnode->cmdbuf->command = cpu_to_le16(command);
2015         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2016         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2017         cmdnode->cmdbuf->result  = 0;
2018
2019         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2020
2021         cmdnode->cmdwaitqwoken = 0;
2022         lbs_queue_cmd(priv, cmdnode);
2023         wake_up_interruptible(&priv->waitq);
2024
2025  done:
2026         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2027         return cmdnode;
2028 }
2029
2030 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2031         struct cmd_header *in_cmd, int in_cmd_size)
2032 {
2033         lbs_deb_enter(LBS_DEB_CMD);
2034         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2035                 lbs_cmd_async_callback, 0);
2036         lbs_deb_leave(LBS_DEB_CMD);
2037 }
2038
2039 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2040               struct cmd_header *in_cmd, int in_cmd_size,
2041               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2042               unsigned long callback_arg)
2043 {
2044         struct cmd_ctrl_node *cmdnode;
2045         unsigned long flags;
2046         int ret = 0;
2047
2048         lbs_deb_enter(LBS_DEB_HOST);
2049
2050         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2051                                   callback, callback_arg);
2052         if (IS_ERR(cmdnode)) {
2053                 ret = PTR_ERR(cmdnode);
2054                 goto done;
2055         }
2056
2057         might_sleep();
2058         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2059
2060         spin_lock_irqsave(&priv->driver_lock, flags);
2061         ret = cmdnode->result;
2062         if (ret)
2063                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2064                             command, ret);
2065
2066         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2067         spin_unlock_irqrestore(&priv->driver_lock, flags);
2068
2069 done:
2070         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2071         return ret;
2072 }
2073 EXPORT_SYMBOL_GPL(__lbs_cmd);
2074
2075