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 "assoc.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 int lbs_update_channel(struct lbs_private *priv)
 829 {
 830         int ret;
 831
 832         /* the channel in f/w could be out of sync; get the current channel */
 833         lbs_deb_enter(LBS_DEB_ASSOC);
 834
 835         ret = lbs_get_channel(priv);
 836         if (ret > 0) {
 837                 priv->curbssparams.channel = ret;
 838                 ret = 0;
 839         }
 840         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 841         return ret;
 842 }
 843
 844 /**
 845  *  @brief Set the radio channel
 846  *
 847  *  @param priv         A pointer to struct lbs_private structure
 848  *  @param channel      The desired channel, or 0 to clear a locked channel
 849  *
 850  *  @return             0 on success, error on failure
 851  */
 852 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 853 {
 854         struct cmd_ds_802_11_rf_channel cmd;
 855         u8 old_channel = priv->curbssparams.channel;
 856         int ret = 0;
 857
 858         lbs_deb_enter(LBS_DEB_CMD);
 859
 860         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 861         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 862         cmd.channel = cpu_to_le16(channel);
 863
 864         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 865         if (ret)
 866                 goto out;
 867
 868         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 869         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 870                 priv->curbssparams.channel);
 871
 872 out:
 873         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 874         return ret;
 875 }
 876
 877 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 878                                 struct cmd_ds_command *cmd)
 879 {
 880
 881         lbs_deb_enter(LBS_DEB_CMD);
 882         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 883         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 884         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 885
 886         /* reset Beacon SNR/NF/RSSI values */
 887         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 888         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 889         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 890         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 891         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 892         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 893
 894         lbs_deb_leave(LBS_DEB_CMD);
 895         return 0;
 896 }
 897
 898 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 899                                u8 cmd_action, void *pdata_buf)
 900 {
 901         struct lbs_offset_value *offval;
 902
 903         lbs_deb_enter(LBS_DEB_CMD);
 904
 905         offval = (struct lbs_offset_value *)pdata_buf;
 906
 907         switch (le16_to_cpu(cmdptr->command)) {
 908         case CMD_MAC_REG_ACCESS:
 909                 {
 910                         struct cmd_ds_mac_reg_access *macreg;
 911
 912                         cmdptr->size =
 913                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 914                                         + S_DS_GEN);
 915                         macreg =
 916                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 917                             macreg;
 918
 919                         macreg->action = cpu_to_le16(cmd_action);
 920                         macreg->offset = cpu_to_le16((u16) offval->offset);
 921                         macreg->value = cpu_to_le32(offval->value);
 922
 923                         break;
 924                 }
 925
 926         case CMD_BBP_REG_ACCESS:
 927                 {
 928                         struct cmd_ds_bbp_reg_access *bbpreg;
 929
 930                         cmdptr->size =
 931                             cpu_to_le16(sizeof
 932                                              (struct cmd_ds_bbp_reg_access)
 933                                              + S_DS_GEN);
 934                         bbpreg =
 935                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 936                             bbpreg;
 937
 938                         bbpreg->action = cpu_to_le16(cmd_action);
 939                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 940                         bbpreg->value = (u8) offval->value;
 941
 942                         break;
 943                 }
 944
 945         case CMD_RF_REG_ACCESS:
 946                 {
 947                         struct cmd_ds_rf_reg_access *rfreg;
 948
 949                         cmdptr->size =
 950                             cpu_to_le16(sizeof
 951                                              (struct cmd_ds_rf_reg_access) +
 952                                              S_DS_GEN);
 953                         rfreg =
 954                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 955                             rfreg;
 956
 957                         rfreg->action = cpu_to_le16(cmd_action);
 958                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 959                         rfreg->value = (u8) offval->value;
 960
 961                         break;
 962                 }
 963
 964         default:
 965                 break;
 966         }
 967
 968         lbs_deb_leave(LBS_DEB_CMD);
 969         return 0;
 970 }
 971
 972 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 973                                u16 cmd_action, void *pdata_buf)
 974 {
 975         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 976         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 977
 978         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 979         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 980         cmd->result = 0;
 981         bt_access->action = cpu_to_le16(cmd_action);
 982
 983         switch (cmd_action) {
 984         case CMD_ACT_BT_ACCESS_ADD:
 985                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 986                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 987                 break;
 988         case CMD_ACT_BT_ACCESS_DEL:
 989                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 990                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 991                 break;
 992         case CMD_ACT_BT_ACCESS_LIST:
 993                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 994                 break;
 995         case CMD_ACT_BT_ACCESS_RESET:
 996                 break;
 997         case CMD_ACT_BT_ACCESS_SET_INVERT:
 998                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 999                 break;
1000         case CMD_ACT_BT_ACCESS_GET_INVERT:
1001                 break;
1002         default:
1003                 break;
1004         }
1005         lbs_deb_leave(LBS_DEB_CMD);
1006         return 0;
1007 }
1008
1009 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1010                                u16 cmd_action, void *pdata_buf)
1011 {
1012         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1013         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1014
1015         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1016         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1017         cmd->result = 0;
1018
1019         if (pdata_buf)
1020                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1021         else
1022                 memset(fwt_access, 0, sizeof(*fwt_access));
1023
1024         fwt_access->action = cpu_to_le16(cmd_action);
1025
1026         lbs_deb_leave(LBS_DEB_CMD);
1027         return 0;
1028 }
1029
1030 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1031                     struct cmd_ds_mesh_access *cmd)
1032 {
1033         int ret;
1034
1035         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1036
1037         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1038         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1039         cmd->hdr.result = 0;
1040
1041         cmd->action = cpu_to_le16(cmd_action);
1042
1043         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1044
1045         lbs_deb_leave(LBS_DEB_CMD);
1046         return ret;
1047 }
1048
1049 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1050 {
1051         struct cmd_ds_mesh_config cmd;
1052
1053         memset(&cmd, 0, sizeof(cmd));
1054         cmd.action = cpu_to_le16(enable);
1055         cmd.channel = cpu_to_le16(chan);
1056         cmd.type = cpu_to_le16(priv->mesh_tlv);
1057         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1058
1059         if (enable) {
1060                 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1061                 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1062         }
1063         lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1064                     enable, priv->mesh_tlv, chan,
1065                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1066         return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1067 }
1068
1069 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1070                                 struct cmd_ds_command *cmd,
1071                                 u16 cmd_action)
1072 {
1073         struct cmd_ds_802_11_beacon_control
1074                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1075
1076         lbs_deb_enter(LBS_DEB_CMD);
1077         cmd->size =
1078             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1079                              + S_DS_GEN);
1080         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1081
1082         bcn_ctrl->action = cpu_to_le16(cmd_action);
1083         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1084         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1085
1086         lbs_deb_leave(LBS_DEB_CMD);
1087         return 0;
1088 }
1089
1090 static void lbs_queue_cmd(struct lbs_private *priv,
1091                           struct cmd_ctrl_node *cmdnode)
1092 {
1093         unsigned long flags;
1094         int addtail = 1;
1095
1096         lbs_deb_enter(LBS_DEB_HOST);
1097
1098         if (!cmdnode) {
1099                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1100                 goto done;
1101         }
1102         if (!cmdnode->cmdbuf->size) {
1103                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1104                 goto done;
1105         }
1106         cmdnode->result = 0;
1107
1108         /* Exit_PS command needs to be queued in the header always. */
1109         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1110                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1111
1112                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1113                         if (priv->psstate != PS_STATE_FULL_POWER)
1114                                 addtail = 0;
1115                 }
1116         }
1117
1118         spin_lock_irqsave(&priv->driver_lock, flags);
1119
1120         if (addtail)
1121                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1122         else
1123                 list_add(&cmdnode->list, &priv->cmdpendingq);
1124
1125         spin_unlock_irqrestore(&priv->driver_lock, flags);
1126
1127         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1128                      le16_to_cpu(cmdnode->cmdbuf->command));
1129
1130 done:
1131         lbs_deb_leave(LBS_DEB_HOST);
1132 }
1133
1134 static void lbs_submit_command(struct lbs_private *priv,
1135                                struct cmd_ctrl_node *cmdnode)
1136 {
1137         unsigned long flags;
1138         struct cmd_header *cmd;
1139         uint16_t cmdsize;
1140         uint16_t command;
1141         int timeo = 5 * HZ;
1142         int ret;
1143
1144         lbs_deb_enter(LBS_DEB_HOST);
1145
1146         cmd = cmdnode->cmdbuf;
1147
1148         spin_lock_irqsave(&priv->driver_lock, flags);
1149         priv->cur_cmd = cmdnode;
1150         priv->cur_cmd_retcode = 0;
1151         spin_unlock_irqrestore(&priv->driver_lock, flags);
1152
1153         cmdsize = le16_to_cpu(cmd->size);
1154         command = le16_to_cpu(cmd->command);
1155
1156         /* These commands take longer */
1157         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1158             command == CMD_802_11_AUTHENTICATE)
1159                 timeo = 10 * HZ;
1160
1161         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1162                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1163         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1164
1165         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1166
1167         if (ret) {
1168                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1169                 /* Let the timer kick in and retry, and potentially reset
1170                    the whole thing if the condition persists */
1171                 timeo = HZ;
1172         }
1173
1174         /* Setup the timer after transmit command */
1175         mod_timer(&priv->command_timer, jiffies + timeo);
1176
1177         lbs_deb_leave(LBS_DEB_HOST);
1178 }
1179
1180 /**
1181  *  This function inserts command node to cmdfreeq
1182  *  after cleans it. Requires priv->driver_lock held.
1183  */
1184 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1185                                          struct cmd_ctrl_node *cmdnode)
1186 {
1187         lbs_deb_enter(LBS_DEB_HOST);
1188
1189         if (!cmdnode)
1190                 goto out;
1191
1192         cmdnode->callback = NULL;
1193         cmdnode->callback_arg = 0;
1194
1195         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1196
1197         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1198  out:
1199         lbs_deb_leave(LBS_DEB_HOST);
1200 }
1201
1202 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1203         struct cmd_ctrl_node *ptempcmd)
1204 {
1205         unsigned long flags;
1206
1207         spin_lock_irqsave(&priv->driver_lock, flags);
1208         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1209         spin_unlock_irqrestore(&priv->driver_lock, flags);
1210 }
1211
1212 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1213                           int result)
1214 {
1215         if (cmd == priv->cur_cmd)
1216                 priv->cur_cmd_retcode = result;
1217
1218         cmd->result = result;
1219         cmd->cmdwaitqwoken = 1;
1220         wake_up_interruptible(&cmd->cmdwait_q);
1221
1222         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1223                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1224         priv->cur_cmd = NULL;
1225 }
1226
1227 int lbs_set_radio_control(struct lbs_private *priv)
1228 {
1229         int ret = 0;
1230         struct cmd_ds_802_11_radio_control cmd;
1231
1232         lbs_deb_enter(LBS_DEB_CMD);
1233
1234         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1235         cmd.action = cpu_to_le16(CMD_ACT_SET);
1236
1237         switch (priv->preamble) {
1238         case CMD_TYPE_SHORT_PREAMBLE:
1239                 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1240                 break;
1241
1242         case CMD_TYPE_LONG_PREAMBLE:
1243                 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1244                 break;
1245
1246         case CMD_TYPE_AUTO_PREAMBLE:
1247         default:
1248                 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1249                 break;
1250         }
1251
1252         if (priv->radioon)
1253                 cmd.control |= cpu_to_le16(TURN_ON_RF);
1254         else
1255                 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1256
1257         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1258                     priv->preamble);
1259
1260         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1261
1262         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1263         return ret;
1264 }
1265
1266 void lbs_set_mac_control(struct lbs_private *priv)
1267 {
1268         struct cmd_ds_mac_control cmd;
1269
1270         lbs_deb_enter(LBS_DEB_CMD);
1271
1272         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1273         cmd.action = cpu_to_le16(priv->mac_control);
1274         cmd.reserved = 0;
1275
1276         lbs_cmd_async(priv, CMD_MAC_CONTROL,
1277                 &cmd.hdr, sizeof(cmd));
1278
1279         lbs_deb_leave(LBS_DEB_CMD);
1280 }
1281
1282 /**
1283  *  @brief This function prepare the command before send to firmware.
1284  *
1285  *  @param priv         A pointer to struct lbs_private structure
1286  *  @param cmd_no       command number
1287  *  @param cmd_action   command action: GET or SET
1288  *  @param wait_option  wait option: wait response or not
1289  *  @param cmd_oid      cmd oid: treated as sub command
1290  *  @param pdata_buf    A pointer to informaion buffer
1291  *  @return             0 or -1
1292  */
1293 int lbs_prepare_and_send_command(struct lbs_private *priv,
1294                           u16 cmd_no,
1295                           u16 cmd_action,
1296                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1297 {
1298         int ret = 0;
1299         struct cmd_ctrl_node *cmdnode;
1300         struct cmd_ds_command *cmdptr;
1301         unsigned long flags;
1302
1303         lbs_deb_enter(LBS_DEB_HOST);
1304
1305         if (!priv) {
1306                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1307                 ret = -1;
1308                 goto done;
1309         }
1310
1311         if (priv->surpriseremoved) {
1312                 lbs_deb_host("PREP_CMD: card removed\n");
1313                 ret = -1;
1314                 goto done;
1315         }
1316
1317         cmdnode = lbs_get_cmd_ctrl_node(priv);
1318
1319         if (cmdnode == NULL) {
1320                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1321
1322                 /* Wake up main thread to execute next command */
1323                 wake_up_interruptible(&priv->waitq);
1324                 ret = -1;
1325                 goto done;
1326         }
1327
1328         cmdnode->callback = NULL;
1329         cmdnode->callback_arg = (unsigned long)pdata_buf;
1330
1331         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1332
1333         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1334
1335         /* Set sequence number, command and INT option */
1336         priv->seqnum++;
1337         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1338
1339         cmdptr->command = cpu_to_le16(cmd_no);
1340         cmdptr->result = 0;
1341
1342         switch (cmd_no) {
1343         case CMD_802_11_PS_MODE:
1344                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1345                 break;
1346
1347         case CMD_802_11_ASSOCIATE:
1348         case CMD_802_11_REASSOCIATE:
1349                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1350                 break;
1351
1352         case CMD_802_11_DEAUTHENTICATE:
1353                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1354                 break;
1355
1356         case CMD_802_11_AD_HOC_START:
1357                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1358                 break;
1359
1360         case CMD_802_11_RESET:
1361                 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1362                 break;
1363
1364         case CMD_802_11_AUTHENTICATE:
1365                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1366                 break;
1367
1368         case CMD_802_11_SNMP_MIB:
1369                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1370                                                cmd_action, cmd_oid, pdata_buf);
1371                 break;
1372
1373         case CMD_MAC_REG_ACCESS:
1374         case CMD_BBP_REG_ACCESS:
1375         case CMD_RF_REG_ACCESS:
1376                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1377                 break;
1378
1379         case CMD_802_11_RF_TX_POWER:
1380                 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1381                                                  cmd_action, pdata_buf);
1382                 break;
1383
1384         case CMD_802_11_RATE_ADAPT_RATESET:
1385                 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1386                                                          cmdptr, cmd_action);
1387                 break;
1388
1389         case CMD_MAC_MULTICAST_ADR:
1390                 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1391                 break;
1392
1393         case CMD_802_11_MONITOR_MODE:
1394                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1395                                           cmd_action, pdata_buf);
1396                 break;
1397
1398         case CMD_802_11_AD_HOC_JOIN:
1399                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1400                 break;
1401
1402         case CMD_802_11_RSSI:
1403                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1404                 break;
1405
1406         case CMD_802_11_AD_HOC_STOP:
1407                 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1408                 break;
1409
1410         case CMD_802_11_SET_AFC:
1411         case CMD_802_11_GET_AFC:
1412
1413                 cmdptr->command = cpu_to_le16(cmd_no);
1414                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1415                                            S_DS_GEN);
1416
1417                 memmove(&cmdptr->params.afc,
1418                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1419
1420                 ret = 0;
1421                 goto done;
1422
1423         case CMD_802_11D_DOMAIN_INFO:
1424                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1425                                                    cmd_no, cmd_action);
1426                 break;
1427
1428         case CMD_802_11_TPC_CFG:
1429                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1430                 cmdptr->size =
1431                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1432                                      S_DS_GEN);
1433
1434                 memmove(&cmdptr->params.tpccfg,
1435                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1436
1437                 ret = 0;
1438                 break;
1439         case CMD_802_11_LED_GPIO_CTRL:
1440                 {
1441                         struct mrvlietypes_ledgpio *gpio =
1442                             (struct mrvlietypes_ledgpio*)
1443                             cmdptr->params.ledgpio.data;
1444
1445                         memmove(&cmdptr->params.ledgpio,
1446                                 pdata_buf,
1447                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1448
1449                         cmdptr->command =
1450                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1451
1452 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1453                         cmdptr->size =
1454                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1455                                 + S_DS_GEN
1456                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1457                         gpio->header.len = gpio->header.len;
1458
1459                         ret = 0;
1460                         break;
1461                 }
1462
1463         case CMD_BT_ACCESS:
1464                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1465                 break;
1466
1467         case CMD_FWT_ACCESS:
1468                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1469                 break;
1470
1471         case CMD_GET_TSF:
1472                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1473                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1474                                            S_DS_GEN);
1475                 ret = 0;
1476                 break;
1477         case CMD_802_11_BEACON_CTRL:
1478                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1479                 break;
1480         default:
1481                 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1482                 ret = -1;
1483                 break;
1484         }
1485
1486         /* return error, since the command preparation failed */
1487         if (ret != 0) {
1488                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1489                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1490                 ret = -1;
1491                 goto done;
1492         }
1493
1494         cmdnode->cmdwaitqwoken = 0;
1495
1496         lbs_queue_cmd(priv, cmdnode);
1497         wake_up_interruptible(&priv->waitq);
1498
1499         if (wait_option & CMD_OPTION_WAITFORRSP) {
1500                 lbs_deb_host("PREP_CMD: wait for response\n");
1501                 might_sleep();
1502                 wait_event_interruptible(cmdnode->cmdwait_q,
1503                                          cmdnode->cmdwaitqwoken);
1504         }
1505
1506         spin_lock_irqsave(&priv->driver_lock, flags);
1507         if (priv->cur_cmd_retcode) {
1508                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1509                        priv->cur_cmd_retcode);
1510                 priv->cur_cmd_retcode = 0;
1511                 ret = -1;
1512         }
1513         spin_unlock_irqrestore(&priv->driver_lock, flags);
1514
1515 done:
1516         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1517         return ret;
1518 }
1519
1520 /**
1521  *  @brief This function allocates the command buffer and link
1522  *  it to command free queue.
1523  *
1524  *  @param priv         A pointer to struct lbs_private structure
1525  *  @return             0 or -1
1526  */
1527 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1528 {
1529         int ret = 0;
1530         u32 bufsize;
1531         u32 i;
1532         struct cmd_ctrl_node *cmdarray;
1533
1534         lbs_deb_enter(LBS_DEB_HOST);
1535
1536         /* Allocate and initialize the command array */
1537         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1538         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1539                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1540                 ret = -1;
1541                 goto done;
1542         }
1543         priv->cmd_array = cmdarray;
1544
1545         /* Allocate and initialize each command buffer in the command array */
1546         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1547                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1548                 if (!cmdarray[i].cmdbuf) {
1549                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1550                         ret = -1;
1551                         goto done;
1552                 }
1553         }
1554
1555         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1556                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1557                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1558         }
1559         ret = 0;
1560
1561 done:
1562         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1563         return ret;
1564 }
1565
1566 /**
1567  *  @brief This function frees the command buffer.
1568  *
1569  *  @param priv         A pointer to struct lbs_private structure
1570  *  @return             0 or -1
1571  */
1572 int lbs_free_cmd_buffer(struct lbs_private *priv)
1573 {
1574         struct cmd_ctrl_node *cmdarray;
1575         unsigned int i;
1576
1577         lbs_deb_enter(LBS_DEB_HOST);
1578
1579         /* need to check if cmd array is allocated or not */
1580         if (priv->cmd_array == NULL) {
1581                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1582                 goto done;
1583         }
1584
1585         cmdarray = priv->cmd_array;
1586
1587         /* Release shared memory buffers */
1588         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1589                 if (cmdarray[i].cmdbuf) {
1590                         kfree(cmdarray[i].cmdbuf);
1591                         cmdarray[i].cmdbuf = NULL;
1592                 }
1593         }
1594
1595         /* Release cmd_ctrl_node */
1596         if (priv->cmd_array) {
1597                 kfree(priv->cmd_array);
1598                 priv->cmd_array = NULL;
1599         }
1600
1601 done:
1602         lbs_deb_leave(LBS_DEB_HOST);
1603         return 0;
1604 }
1605
1606 /**
1607  *  @brief This function gets a free command node if available in
1608  *  command free queue.
1609  *
1610  *  @param priv         A pointer to struct lbs_private structure
1611  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1612  */
1613 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1614 {
1615         struct cmd_ctrl_node *tempnode;
1616         unsigned long flags;
1617
1618         lbs_deb_enter(LBS_DEB_HOST);
1619
1620         if (!priv)
1621                 return NULL;
1622
1623         spin_lock_irqsave(&priv->driver_lock, flags);
1624
1625         if (!list_empty(&priv->cmdfreeq)) {
1626                 tempnode = list_first_entry(&priv->cmdfreeq,
1627                                             struct cmd_ctrl_node, list);
1628                 list_del(&tempnode->list);
1629         } else {
1630                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1631                 tempnode = NULL;
1632         }
1633
1634         spin_unlock_irqrestore(&priv->driver_lock, flags);
1635
1636         lbs_deb_leave(LBS_DEB_HOST);
1637         return tempnode;
1638 }
1639
1640 /**
1641  *  @brief This function executes next command in command
1642  *  pending queue. It will put fimware back to PS mode
1643  *  if applicable.
1644  *
1645  *  @param priv     A pointer to struct lbs_private structure
1646  *  @return        0 or -1
1647  */
1648 int lbs_execute_next_command(struct lbs_private *priv)
1649 {
1650         struct cmd_ctrl_node *cmdnode = NULL;
1651         struct cmd_header *cmd;
1652         unsigned long flags;
1653         int ret = 0;
1654
1655         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1656          * only caller to us is lbs_thread() and we get even when a
1657          * data packet is received */
1658         lbs_deb_enter(LBS_DEB_THREAD);
1659
1660         spin_lock_irqsave(&priv->driver_lock, flags);
1661
1662         if (priv->cur_cmd) {
1663                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1664                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1665                 ret = -1;
1666                 goto done;
1667         }
1668
1669         if (!list_empty(&priv->cmdpendingq)) {
1670                 cmdnode = list_first_entry(&priv->cmdpendingq,
1671                                            struct cmd_ctrl_node, list);
1672         }
1673
1674         spin_unlock_irqrestore(&priv->driver_lock, flags);
1675
1676         if (cmdnode) {
1677                 cmd = cmdnode->cmdbuf;
1678
1679                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1680                         if ((priv->psstate == PS_STATE_SLEEP) ||
1681                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1682                                 lbs_deb_host(
1683                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1684                                        le16_to_cpu(cmd->command),
1685                                        priv->psstate);
1686                                 ret = -1;
1687                                 goto done;
1688                         }
1689                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1690                                      "0x%04x in psstate %d\n",
1691                                      le16_to_cpu(cmd->command), priv->psstate);
1692                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1693                         /*
1694                          * 1. Non-PS command:
1695                          * Queue it. set needtowakeup to TRUE if current state
1696                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1697                          * 2. PS command but not Exit_PS:
1698                          * Ignore it.
1699                          * 3. PS command Exit_PS:
1700                          * Set needtowakeup to TRUE if current state is SLEEP,
1701                          * otherwise send this command down to firmware
1702                          * immediately.
1703                          */
1704                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1705                                 /*  Prepare to send Exit PS,
1706                                  *  this non PS command will be sent later */
1707                                 if ((priv->psstate == PS_STATE_SLEEP)
1708                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1709                                     ) {
1710                                         /* w/ new scheme, it will not reach here.
1711                                            since it is blocked in main_thread. */
1712                                         priv->needtowakeup = 1;
1713                                 } else
1714                                         lbs_ps_wakeup(priv, 0);
1715
1716                                 ret = 0;
1717                                 goto done;
1718                         } else {
1719                                 /*
1720                                  * PS command. Ignore it if it is not Exit_PS.
1721                                  * otherwise send it down immediately.
1722                                  */
1723                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1724
1725                                 lbs_deb_host(
1726                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1727                                        psm->action);
1728                                 if (psm->action !=
1729                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1730                                         lbs_deb_host(
1731                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1732                                         list_del(&cmdnode->list);
1733                                         spin_lock_irqsave(&priv->driver_lock, flags);
1734                                         lbs_complete_command(priv, cmdnode, 0);
1735                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1736
1737                                         ret = 0;
1738                                         goto done;
1739                                 }
1740
1741                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1742                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1743                                         lbs_deb_host(
1744                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1745                                         list_del(&cmdnode->list);
1746                                         spin_lock_irqsave(&priv->driver_lock, flags);
1747                                         lbs_complete_command(priv, cmdnode, 0);
1748                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1749                                         priv->needtowakeup = 1;
1750
1751                                         ret = 0;
1752                                         goto done;
1753                                 }
1754
1755                                 lbs_deb_host(
1756                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1757                         }
1758                 }
1759                 list_del(&cmdnode->list);
1760                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1761                             le16_to_cpu(cmd->command));
1762                 lbs_submit_command(priv, cmdnode);
1763         } else {
1764                 /*
1765                  * check if in power save mode, if yes, put the device back
1766                  * to PS mode
1767                  */
1768                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1769                     (priv->psstate == PS_STATE_FULL_POWER) &&
1770                     ((priv->connect_status == LBS_CONNECTED) ||
1771                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1772                         if (priv->secinfo.WPAenabled ||
1773                             priv->secinfo.WPA2enabled) {
1774                                 /* check for valid WPA group keys */
1775                                 if (priv->wpa_mcast_key.len ||
1776                                     priv->wpa_unicast_key.len) {
1777                                         lbs_deb_host(
1778                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1779                                                " go back to PS_SLEEP");
1780                                         lbs_ps_sleep(priv, 0);
1781                                 }
1782                         } else {
1783                                 lbs_deb_host(
1784                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1785                                        "go back to PS_SLEEP");
1786                                 lbs_ps_sleep(priv, 0);
1787                         }
1788                 }
1789         }
1790
1791         ret = 0;
1792 done:
1793         lbs_deb_leave(LBS_DEB_THREAD);
1794         return ret;
1795 }
1796
1797 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1798 {
1799         union iwreq_data iwrq;
1800         u8 buf[50];
1801
1802         lbs_deb_enter(LBS_DEB_WEXT);
1803
1804         memset(&iwrq, 0, sizeof(union iwreq_data));
1805         memset(buf, 0, sizeof(buf));
1806
1807         snprintf(buf, sizeof(buf) - 1, "%s", str);
1808
1809         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1810
1811         /* Send Event to upper layer */
1812         lbs_deb_wext("event indication string %s\n", (char *)buf);
1813         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1814         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1815
1816         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1817
1818         lbs_deb_leave(LBS_DEB_WEXT);
1819 }
1820
1821 static void lbs_send_confirmsleep(struct lbs_private *priv)
1822 {
1823         unsigned long flags;
1824         int ret;
1825
1826         lbs_deb_enter(LBS_DEB_HOST);
1827         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1828                 sizeof(confirm_sleep));
1829
1830         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1831                 sizeof(confirm_sleep));
1832
1833         if (ret) {
1834                 lbs_pr_alert("confirm_sleep failed\n");
1835         } else {
1836                 spin_lock_irqsave(&priv->driver_lock, flags);
1837                 if (!priv->intcounter)
1838                         priv->psstate = PS_STATE_SLEEP;
1839                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1840         }
1841         lbs_deb_leave(LBS_DEB_HOST);
1842 }
1843
1844 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1845 {
1846         lbs_deb_enter(LBS_DEB_HOST);
1847
1848         /*
1849          * PS is currently supported only in Infrastructure mode
1850          * Remove this check if it is to be supported in IBSS mode also
1851          */
1852
1853         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1854                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1855
1856         lbs_deb_leave(LBS_DEB_HOST);
1857 }
1858
1859 /**
1860  *  @brief This function sends Exit_PS command to firmware.
1861  *
1862  *  @param priv         A pointer to struct lbs_private structure
1863  *  @param wait_option  wait response or not
1864  *  @return             n/a
1865  */
1866 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1867 {
1868         __le32 Localpsmode;
1869
1870         lbs_deb_enter(LBS_DEB_HOST);
1871
1872         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1873
1874         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1875                               CMD_SUBCMD_EXIT_PS,
1876                               wait_option, 0, &Localpsmode);
1877
1878         lbs_deb_leave(LBS_DEB_HOST);
1879 }
1880
1881 /**
1882  *  @brief This function checks condition and prepares to
1883  *  send sleep confirm command to firmware if ok.
1884  *
1885  *  @param priv         A pointer to struct lbs_private structure
1886  *  @param psmode       Power Saving mode
1887  *  @return             n/a
1888  */
1889 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1890 {
1891         unsigned long flags =0;
1892         int allowed = 1;
1893
1894         lbs_deb_enter(LBS_DEB_HOST);
1895
1896         if (priv->dnld_sent) {
1897                 allowed = 0;
1898                 lbs_deb_host("dnld_sent was set\n");
1899         }
1900
1901         spin_lock_irqsave(&priv->driver_lock, flags);
1902         if (priv->cur_cmd) {
1903                 allowed = 0;
1904                 lbs_deb_host("cur_cmd was set\n");
1905         }
1906         if (priv->intcounter > 0) {
1907                 allowed = 0;
1908                 lbs_deb_host("intcounter %d\n", priv->intcounter);
1909         }
1910         spin_unlock_irqrestore(&priv->driver_lock, flags);
1911
1912         if (allowed) {
1913                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1914                 lbs_send_confirmsleep(priv);
1915         } else {
1916                 lbs_deb_host("sleep confirm has been delayed\n");
1917         }
1918
1919         lbs_deb_leave(LBS_DEB_HOST);
1920 }
1921
1922
1923 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1924         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1925         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1926         unsigned long callback_arg)
1927 {
1928         struct cmd_ctrl_node *cmdnode;
1929
1930         lbs_deb_enter(LBS_DEB_HOST);
1931
1932         if (priv->surpriseremoved) {
1933                 lbs_deb_host("PREP_CMD: card removed\n");
1934                 cmdnode = ERR_PTR(-ENOENT);
1935                 goto done;
1936         }
1937
1938         cmdnode = lbs_get_cmd_ctrl_node(priv);
1939         if (cmdnode == NULL) {
1940                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1941
1942                 /* Wake up main thread to execute next command */
1943                 wake_up_interruptible(&priv->waitq);
1944                 cmdnode = ERR_PTR(-ENOBUFS);
1945                 goto done;
1946         }
1947
1948         cmdnode->callback = callback;
1949         cmdnode->callback_arg = callback_arg;
1950
1951         /* Copy the incoming command to the buffer */
1952         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1953
1954         /* Set sequence number, clean result, move to buffer */
1955         priv->seqnum++;
1956         cmdnode->cmdbuf->command = cpu_to_le16(command);
1957         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
1958         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
1959         cmdnode->cmdbuf->result  = 0;
1960
1961         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1962
1963         cmdnode->cmdwaitqwoken = 0;
1964         lbs_queue_cmd(priv, cmdnode);
1965         wake_up_interruptible(&priv->waitq);
1966
1967  done:
1968         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1969         return cmdnode;
1970 }
1971
1972 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1973         struct cmd_header *in_cmd, int in_cmd_size)
1974 {
1975         lbs_deb_enter(LBS_DEB_CMD);
1976         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1977                 lbs_cmd_async_callback, 0);
1978         lbs_deb_leave(LBS_DEB_CMD);
1979 }
1980
1981 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
1982               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         unsigned long flags;
1988         int ret = 0;
1989
1990         lbs_deb_enter(LBS_DEB_HOST);
1991
1992         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1993                                   callback, callback_arg);
1994         if (IS_ERR(cmdnode)) {
1995                 ret = PTR_ERR(cmdnode);
1996                 goto done;
1997         }
1998
1999         might_sleep();
2000         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2001
2002         spin_lock_irqsave(&priv->driver_lock, flags);
2003         ret = cmdnode->result;
2004         if (ret)
2005                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2006                             command, ret);
2007
2008         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2009         spin_unlock_irqrestore(&priv->driver_lock, flags);
2010
2011 done:
2012         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2013         return ret;
2014 }
2015 EXPORT_SYMBOL_GPL(__lbs_cmd);
2016
2017