SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/net/wireless/libertas/cmd.c

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