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 <net/lib80211.h>
   8 #include <linux/kfifo.h>
   9 #include "host.h"
  10 #include "hostcmd.h"
  11 #include "decl.h"
  12 #include "defs.h"
  13 #include "dev.h"
  14 #include "assoc.h"
  15 #include "wext.h"
  16 #include "cmd.h"
  17
  18 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
  19
  20
  21 /**
  22  *  @brief Simple callback that copies response back into command
  23  *
  24  *  @param priv         A pointer to struct lbs_private structure
  25  *  @param extra        A pointer to the original command structure for which
  26  *                      'resp' is a response
  27  *  @param resp         A pointer to the command response
  28  *
  29  *  @return             0 on success, error on failure
  30  */
  31 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
  32                      struct cmd_header *resp)
  33 {
  34         struct cmd_header *buf = (void *)extra;
  35         uint16_t copy_len;
  36
  37         copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
  38         memcpy(buf, resp, copy_len);
  39         return 0;
  40 }
  41 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
  42
  43 /**
  44  *  @brief Simple callback that ignores the result. Use this if
  45  *  you just want to send a command to the hardware, but don't
  46  *  care for the result.
  47  *
  48  *  @param priv         ignored
  49  *  @param extra        ignored
  50  *  @param resp         ignored
  51  *
  52  *  @return             0 for success
  53  */
  54 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
  55                      struct cmd_header *resp)
  56 {
  57         return 0;
  58 }
  59
  60
  61 /**
  62  *  @brief Checks whether a command is allowed in Power Save mode
  63  *
  64  *  @param command the command ID
  65  *  @return        1 if allowed, 0 if not allowed
  66  */
  67 static u8 is_command_allowed_in_ps(u16 cmd)
  68 {
  69         switch (cmd) {
  70         case CMD_802_11_RSSI:
  71                 return 1;
  72         default:
  73                 break;
  74         }
  75         return 0;
  76 }
  77
  78 /**
  79  *  @brief Updates the hardware details like MAC address and regulatory region
  80  *
  81  *  @param priv         A pointer to struct lbs_private structure
  82  *
  83  *  @return             0 on success, error on failure
  84  */
  85 int lbs_update_hw_spec(struct lbs_private *priv)
  86 {
  87         struct cmd_ds_get_hw_spec cmd;
  88         int ret = -1;
  89         u32 i;
  90
  91         lbs_deb_enter(LBS_DEB_CMD);
  92
  93         memset(&cmd, 0, sizeof(cmd));
  94         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
  95         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
  96         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
  97         if (ret)
  98                 goto out;
  99
 100         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
 101
 102         /* The firmware release is in an interesting format: the patch
 103          * level is in the most significant nibble ... so fix that: */
 104         priv->fwrelease = le32_to_cpu(cmd.fwrelease);
 105         priv->fwrelease = (priv->fwrelease << 8) |
 106                 (priv->fwrelease >> 24 & 0xff);
 107
 108         /* Some firmware capabilities:
 109          * CF card    firmware 5.0.16p0:   cap 0x00000303
 110          * USB dongle firmware 5.110.17p2: cap 0x00000303
 111          */
 112         lbs_pr_info("%pM, fw %u.%u.%up%u, cap 0x%08x\n",
 113                 cmd.permanentaddr,
 114                 priv->fwrelease >> 24 & 0xff,
 115                 priv->fwrelease >> 16 & 0xff,
 116                 priv->fwrelease >>  8 & 0xff,
 117                 priv->fwrelease       & 0xff,
 118                 priv->fwcapinfo);
 119         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
 120                     cmd.hwifversion, cmd.version);
 121
 122         /* Determine mesh_fw_ver from fwrelease and fwcapinfo */
 123         /* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
 124         /* 5.110.22 have mesh command with 0xa3 command id */
 125         /* 10.0.0.p0 FW brings in mesh config command with different id */
 126         /* Check FW version MSB and initialize mesh_fw_ver */
 127         if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
 128                 priv->mesh_fw_ver = MESH_FW_OLD;
 129         else if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
 130                 (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK))
 131                 priv->mesh_fw_ver = MESH_FW_NEW;
 132         else
 133                 priv->mesh_fw_ver = MESH_NONE;
 134
 135         /* Clamp region code to 8-bit since FW spec indicates that it should
 136          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
 137          * returns non-zero high 8 bits here.
 138          */
 139         priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
 140
 141         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 142                 /* use the region code to search for the index */
 143                 if (priv->regioncode == lbs_region_code_to_index[i])
 144                         break;
 145         }
 146
 147         /* if it's unidentified region code, use the default (USA) */
 148         if (i >= MRVDRV_MAX_REGION_CODE) {
 149                 priv->regioncode = 0x10;
 150                 lbs_pr_info("unidentified region code; using the default (USA)\n");
 151         }
 152
 153         if (priv->current_addr[0] == 0xff)
 154                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
 155
 156         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
 157         if (priv->mesh_dev)
 158                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 159
 160         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
 161                 ret = -1;
 162                 goto out;
 163         }
 164
 165         if (lbs_set_universaltable(priv, 0)) {
 166                 ret = -1;
 167                 goto out;
 168         }
 169
 170 out:
 171         lbs_deb_leave(LBS_DEB_CMD);
 172         return ret;
 173 }
 174
 175 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
 176                 struct wol_config *p_wol_config)
 177 {
 178         struct cmd_ds_host_sleep cmd_config;
 179         int ret;
 180
 181         cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
 182         cmd_config.criteria = cpu_to_le32(criteria);
 183         cmd_config.gpio = priv->wol_gpio;
 184         cmd_config.gap = priv->wol_gap;
 185
 186         if (p_wol_config != NULL)
 187                 memcpy((uint8_t *)&cmd_config.wol_conf, (uint8_t *)p_wol_config,
 188                                 sizeof(struct wol_config));
 189         else
 190                 cmd_config.wol_conf.action = CMD_ACT_ACTION_NONE;
 191
 192         ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
 193         if (!ret) {
 194                 if (criteria) {
 195                         lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
 196                         priv->wol_criteria = criteria;
 197                 } else
 198                         memcpy((uint8_t *) p_wol_config,
 199                                         (uint8_t *)&cmd_config.wol_conf,
 200                                         sizeof(struct wol_config));
 201         } else {
 202                 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
 203         }
 204
 205         return ret;
 206 }
 207 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
 208
 209 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
 210                                    u16 cmd_action)
 211 {
 212         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
 213
 214         lbs_deb_enter(LBS_DEB_CMD);
 215
 216         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
 217         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
 218                                 S_DS_GEN);
 219         psm->action = cpu_to_le16(cmd_action);
 220         psm->multipledtim = 0;
 221         switch (cmd_action) {
 222         case CMD_SUBCMD_ENTER_PS:
 223                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
 224
 225                 psm->locallisteninterval = 0;
 226                 psm->nullpktinterval = 0;
 227                 psm->multipledtim =
 228                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
 229                 break;
 230
 231         case CMD_SUBCMD_EXIT_PS:
 232                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
 233                 break;
 234
 235         case CMD_SUBCMD_SLEEP_CONFIRMED:
 236                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
 237                 break;
 238
 239         default:
 240                 break;
 241         }
 242
 243         lbs_deb_leave(LBS_DEB_CMD);
 244         return 0;
 245 }
 246
 247 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
 248                                       uint16_t cmd_action, uint16_t *timeout)
 249 {
 250         struct cmd_ds_802_11_inactivity_timeout cmd;
 251         int ret;
 252
 253         lbs_deb_enter(LBS_DEB_CMD);
 254
 255         cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
 256         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 257
 258         cmd.action = cpu_to_le16(cmd_action);
 259
 260         if (cmd_action == CMD_ACT_SET)
 261                 cmd.timeout = cpu_to_le16(*timeout);
 262         else
 263                 cmd.timeout = 0;
 264
 265         ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
 266
 267         if (!ret)
 268                 *timeout = le16_to_cpu(cmd.timeout);
 269
 270         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 271         return 0;
 272 }
 273
 274 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
 275                                 struct sleep_params *sp)
 276 {
 277         struct cmd_ds_802_11_sleep_params cmd;
 278         int ret;
 279
 280         lbs_deb_enter(LBS_DEB_CMD);
 281
 282         if (cmd_action == CMD_ACT_GET) {
 283                 memset(&cmd, 0, sizeof(cmd));
 284         } else {
 285                 cmd.error = cpu_to_le16(sp->sp_error);
 286                 cmd.offset = cpu_to_le16(sp->sp_offset);
 287                 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
 288                 cmd.calcontrol = sp->sp_calcontrol;
 289                 cmd.externalsleepclk = sp->sp_extsleepclk;
 290                 cmd.reserved = cpu_to_le16(sp->sp_reserved);
 291         }
 292         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 293         cmd.action = cpu_to_le16(cmd_action);
 294
 295         ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
 296
 297         if (!ret) {
 298                 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
 299                             "calcontrol 0x%x extsleepclk 0x%x\n",
 300                             le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
 301                             le16_to_cpu(cmd.stabletime), cmd.calcontrol,
 302                             cmd.externalsleepclk);
 303
 304                 sp->sp_error = le16_to_cpu(cmd.error);
 305                 sp->sp_offset = le16_to_cpu(cmd.offset);
 306                 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
 307                 sp->sp_calcontrol = cmd.calcontrol;
 308                 sp->sp_extsleepclk = cmd.externalsleepclk;
 309                 sp->sp_reserved = le16_to_cpu(cmd.reserved);
 310         }
 311
 312         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 313         return 0;
 314 }
 315
 316 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
 317                            struct assoc_request *assoc)
 318 {
 319         struct cmd_ds_802_11_set_wep cmd;
 320         int ret = 0;
 321
 322         lbs_deb_enter(LBS_DEB_CMD);
 323
 324         memset(&cmd, 0, sizeof(cmd));
 325         cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
 326         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 327
 328         cmd.action = cpu_to_le16(cmd_action);
 329
 330         if (cmd_action == CMD_ACT_ADD) {
 331                 int i;
 332
 333                 /* default tx key index */
 334                 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
 335                                            CMD_WEP_KEY_INDEX_MASK);
 336
 337                 /* Copy key types and material to host command structure */
 338                 for (i = 0; i < 4; i++) {
 339                         struct enc_key *pkey = &assoc->wep_keys[i];
 340
 341                         switch (pkey->len) {
 342                         case KEY_LEN_WEP_40:
 343                                 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
 344                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 345                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
 346                                 break;
 347                         case KEY_LEN_WEP_104:
 348                                 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
 349                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 350                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
 351                                 break;
 352                         case 0:
 353                                 break;
 354                         default:
 355                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
 356                                             i, pkey->len);
 357                                 ret = -1;
 358                                 goto done;
 359                                 break;
 360                         }
 361                 }
 362         } else if (cmd_action == CMD_ACT_REMOVE) {
 363                 /* ACT_REMOVE clears _all_ WEP keys */
 364
 365                 /* default tx key index */
 366                 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
 367                                            CMD_WEP_KEY_INDEX_MASK);
 368                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
 369         }
 370
 371         ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
 372 done:
 373         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 374         return ret;
 375 }
 376
 377 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
 378                               uint16_t *enable)
 379 {
 380         struct cmd_ds_802_11_enable_rsn cmd;
 381         int ret;
 382
 383         lbs_deb_enter(LBS_DEB_CMD);
 384
 385         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 386         cmd.action = cpu_to_le16(cmd_action);
 387
 388         if (cmd_action == CMD_ACT_GET)
 389                 cmd.enable = 0;
 390         else {
 391                 if (*enable)
 392                         cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
 393                 else
 394                         cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
 395                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
 396         }
 397
 398         ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
 399         if (!ret && cmd_action == CMD_ACT_GET)
 400                 *enable = le16_to_cpu(cmd.enable);
 401
 402         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 403         return ret;
 404 }
 405
 406 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
 407                             struct enc_key *key)
 408 {
 409         lbs_deb_enter(LBS_DEB_CMD);
 410
 411         if (key->flags & KEY_INFO_WPA_ENABLED)
 412                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
 413         if (key->flags & KEY_INFO_WPA_UNICAST)
 414                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
 415         if (key->flags & KEY_INFO_WPA_MCAST)
 416                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
 417
 418         keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
 419         keyparam->keytypeid = cpu_to_le16(key->type);
 420         keyparam->keylen = cpu_to_le16(key->len);
 421         memcpy(keyparam->key, key->key, key->len);
 422
 423         /* Length field doesn't include the {type,length} header */
 424         keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
 425         lbs_deb_leave(LBS_DEB_CMD);
 426 }
 427
 428 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
 429                                 struct assoc_request *assoc)
 430 {
 431         struct cmd_ds_802_11_key_material cmd;
 432         int ret = 0;
 433         int index = 0;
 434
 435         lbs_deb_enter(LBS_DEB_CMD);
 436
 437         cmd.action = cpu_to_le16(cmd_action);
 438         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 439
 440         if (cmd_action == CMD_ACT_GET) {
 441                 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
 442         } else {
 443                 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
 444
 445                 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
 446                         set_one_wpa_key(&cmd.keyParamSet[index],
 447                                         &assoc->wpa_unicast_key);
 448                         index++;
 449                 }
 450
 451                 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
 452                         set_one_wpa_key(&cmd.keyParamSet[index],
 453                                         &assoc->wpa_mcast_key);
 454                         index++;
 455                 }
 456
 457                 /* The common header and as many keys as we included */
 458                 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
 459                                                     keyParamSet[index]));
 460         }
 461         ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
 462         /* Copy the returned key to driver private data */
 463         if (!ret && cmd_action == CMD_ACT_GET) {
 464                 void *buf_ptr = cmd.keyParamSet;
 465                 void *resp_end = &(&cmd)[1];
 466
 467                 while (buf_ptr < resp_end) {
 468                         struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
 469                         struct enc_key *key;
 470                         uint16_t param_set_len = le16_to_cpu(keyparam->length);
 471                         uint16_t key_len = le16_to_cpu(keyparam->keylen);
 472                         uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
 473                         uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
 474                         void *end;
 475
 476                         end = (void *)keyparam + sizeof(keyparam->type)
 477                                 + sizeof(keyparam->length) + param_set_len;
 478
 479                         /* Make sure we don't access past the end of the IEs */
 480                         if (end > resp_end)
 481                                 break;
 482
 483                         if (key_flags & KEY_INFO_WPA_UNICAST)
 484                                 key = &priv->wpa_unicast_key;
 485                         else if (key_flags & KEY_INFO_WPA_MCAST)
 486                                 key = &priv->wpa_mcast_key;
 487                         else
 488                                 break;
 489
 490                         /* Copy returned key into driver */
 491                         memset(key, 0, sizeof(struct enc_key));
 492                         if (key_len > sizeof(key->key))
 493                                 break;
 494                         key->type = key_type;
 495                         key->flags = key_flags;
 496                         key->len = key_len;
 497                         memcpy(key->key, keyparam->key, key->len);
 498
 499                         buf_ptr = end + 1;
 500                 }
 501         }
 502
 503         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 504         return ret;
 505 }
 506
 507 /**
 508  *  @brief Set an SNMP MIB value
 509  *
 510  *  @param priv         A pointer to struct lbs_private structure
 511  *  @param oid          The OID to set in the firmware
 512  *  @param val          Value to set the OID to
 513  *
 514  *  @return             0 on success, error on failure
 515  */
 516 int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
 517 {
 518         struct cmd_ds_802_11_snmp_mib cmd;
 519         int ret;
 520
 521         lbs_deb_enter(LBS_DEB_CMD);
 522
 523         memset(&cmd, 0, sizeof (cmd));
 524         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 525         cmd.action = cpu_to_le16(CMD_ACT_SET);
 526         cmd.oid = cpu_to_le16((u16) oid);
 527
 528         switch (oid) {
 529         case SNMP_MIB_OID_BSS_TYPE:
 530                 cmd.bufsize = cpu_to_le16(sizeof(u8));
 531                 cmd.value[0] = (val == IW_MODE_ADHOC) ? 2 : 1;
 532                 break;
 533         case SNMP_MIB_OID_11D_ENABLE:
 534         case SNMP_MIB_OID_FRAG_THRESHOLD:
 535         case SNMP_MIB_OID_RTS_THRESHOLD:
 536         case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
 537         case SNMP_MIB_OID_LONG_RETRY_LIMIT:
 538                 cmd.bufsize = cpu_to_le16(sizeof(u16));
 539                 *((__le16 *)(&cmd.value)) = cpu_to_le16(val);
 540                 break;
 541         default:
 542                 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
 543                 ret = -EINVAL;
 544                 goto out;
 545         }
 546
 547         lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
 548                     le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
 549
 550         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 551
 552 out:
 553         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 554         return ret;
 555 }
 556
 557 /**
 558  *  @brief Get an SNMP MIB value
 559  *
 560  *  @param priv         A pointer to struct lbs_private structure
 561  *  @param oid          The OID to retrieve from the firmware
 562  *  @param out_val      Location for the returned value
 563  *
 564  *  @return             0 on success, error on failure
 565  */
 566 int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
 567 {
 568         struct cmd_ds_802_11_snmp_mib cmd;
 569         int ret;
 570
 571         lbs_deb_enter(LBS_DEB_CMD);
 572
 573         memset(&cmd, 0, sizeof (cmd));
 574         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 575         cmd.action = cpu_to_le16(CMD_ACT_GET);
 576         cmd.oid = cpu_to_le16(oid);
 577
 578         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 579         if (ret)
 580                 goto out;
 581
 582         switch (le16_to_cpu(cmd.bufsize)) {
 583         case sizeof(u8):
 584                 if (oid == SNMP_MIB_OID_BSS_TYPE) {
 585                         if (cmd.value[0] == 2)
 586                                 *out_val = IW_MODE_ADHOC;
 587                         else
 588                                 *out_val = IW_MODE_INFRA;
 589                 } else
 590                         *out_val = cmd.value[0];
 591                 break;
 592         case sizeof(u16):
 593                 *out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
 594                 break;
 595         default:
 596                 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
 597                             oid, le16_to_cpu(cmd.bufsize));
 598                 break;
 599         }
 600
 601 out:
 602         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 603         return ret;
 604 }
 605
 606 /**
 607  *  @brief Get the min, max, and current TX power
 608  *
 609  *  @param priv         A pointer to struct lbs_private structure
 610  *  @param curlevel     Current power level in dBm
 611  *  @param minlevel     Minimum supported power level in dBm (optional)
 612  *  @param maxlevel     Maximum supported power level in dBm (optional)
 613  *
 614  *  @return             0 on success, error on failure
 615  */
 616 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
 617                      s16 *maxlevel)
 618 {
 619         struct cmd_ds_802_11_rf_tx_power cmd;
 620         int ret;
 621
 622         lbs_deb_enter(LBS_DEB_CMD);
 623
 624         memset(&cmd, 0, sizeof(cmd));
 625         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 626         cmd.action = cpu_to_le16(CMD_ACT_GET);
 627
 628         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 629         if (ret == 0) {
 630                 *curlevel = le16_to_cpu(cmd.curlevel);
 631                 if (minlevel)
 632                         *minlevel = cmd.minlevel;
 633                 if (maxlevel)
 634                         *maxlevel = cmd.maxlevel;
 635         }
 636
 637         lbs_deb_leave(LBS_DEB_CMD);
 638         return ret;
 639 }
 640
 641 /**
 642  *  @brief Set the TX power
 643  *
 644  *  @param priv         A pointer to struct lbs_private structure
 645  *  @param dbm          The desired power level in dBm
 646  *
 647  *  @return             0 on success, error on failure
 648  */
 649 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
 650 {
 651         struct cmd_ds_802_11_rf_tx_power cmd;
 652         int ret;
 653
 654         lbs_deb_enter(LBS_DEB_CMD);
 655
 656         memset(&cmd, 0, sizeof(cmd));
 657         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 658         cmd.action = cpu_to_le16(CMD_ACT_SET);
 659         cmd.curlevel = cpu_to_le16(dbm);
 660
 661         lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
 662
 663         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 664
 665         lbs_deb_leave(LBS_DEB_CMD);
 666         return ret;
 667 }
 668
 669 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 670                                       u16 cmd_action, void *pdata_buf)
 671 {
 672         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 673
 674         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 675         cmd->size =
 676             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 677                              S_DS_GEN);
 678
 679         monitor->action = cpu_to_le16(cmd_action);
 680         if (cmd_action == CMD_ACT_SET) {
 681                 monitor->mode =
 682                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 683         }
 684
 685         return 0;
 686 }
 687
 688 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
 689 {
 690 /*              Bit     Rate
 691 *               15:13 Reserved
 692 *               12    54 Mbps
 693 *               11    48 Mbps
 694 *               10    36 Mbps
 695 *               9     24 Mbps
 696 *               8     18 Mbps
 697 *               7     12 Mbps
 698 *               6     9 Mbps
 699 *               5     6 Mbps
 700 *               4     Reserved
 701 *               3     11 Mbps
 702 *               2     5.5 Mbps
 703 *               1     2 Mbps
 704 *               0     1 Mbps
 705 **/
 706
 707         uint16_t ratemask;
 708         int i = lbs_data_rate_to_fw_index(rate);
 709         if (lower_rates_ok)
 710                 ratemask = (0x1fef >> (12 - i));
 711         else
 712                 ratemask = (1 << i);
 713         return cpu_to_le16(ratemask);
 714 }
 715
 716 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 717                                       uint16_t cmd_action)
 718 {
 719         struct cmd_ds_802_11_rate_adapt_rateset cmd;
 720         int ret;
 721
 722         lbs_deb_enter(LBS_DEB_CMD);
 723
 724         if (!priv->cur_rate && !priv->enablehwauto)
 725                 return -EINVAL;
 726
 727         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 728
 729         cmd.action = cpu_to_le16(cmd_action);
 730         cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
 731         cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
 732         ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
 733         if (!ret && cmd_action == CMD_ACT_GET) {
 734                 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
 735                 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
 736         }
 737
 738         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 739         return ret;
 740 }
 741 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
 742
 743 /**
 744  *  @brief Set the data rate
 745  *
 746  *  @param priv         A pointer to struct lbs_private structure
 747  *  @param rate         The desired data rate, or 0 to clear a locked rate
 748  *
 749  *  @return             0 on success, error on failure
 750  */
 751 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 752 {
 753         struct cmd_ds_802_11_data_rate cmd;
 754         int ret = 0;
 755
 756         lbs_deb_enter(LBS_DEB_CMD);
 757
 758         memset(&cmd, 0, sizeof(cmd));
 759         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 760
 761         if (rate > 0) {
 762                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 763                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 764                 if (cmd.rates[0] == 0) {
 765                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 766                                     " 0x%02X\n", rate);
 767                         ret = 0;
 768                         goto out;
 769                 }
 770                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 771         } else {
 772                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 773                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 774         }
 775
 776         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 777         if (ret)
 778                 goto out;
 779
 780         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 781
 782         /* FIXME: get actual rates FW can do if this command actually returns
 783          * all data rates supported.
 784          */
 785         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 786         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 787
 788 out:
 789         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 790         return ret;
 791 }
 792
 793 /**
 794  *  @brief Get the radio channel
 795  *
 796  *  @param priv         A pointer to struct lbs_private structure
 797  *
 798  *  @return             The channel on success, error on failure
 799  */
 800 int lbs_get_channel(struct lbs_private *priv)
 801 {
 802         struct cmd_ds_802_11_rf_channel cmd;
 803         int ret = 0;
 804
 805         lbs_deb_enter(LBS_DEB_CMD);
 806
 807         memset(&cmd, 0, sizeof(cmd));
 808         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 809         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 810
 811         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 812         if (ret)
 813                 goto out;
 814
 815         ret = le16_to_cpu(cmd.channel);
 816         lbs_deb_cmd("current radio channel is %d\n", ret);
 817
 818 out:
 819         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 820         return ret;
 821 }
 822
 823 int lbs_update_channel(struct lbs_private *priv)
 824 {
 825         int ret;
 826
 827         /* the channel in f/w could be out of sync; get the current channel */
 828         lbs_deb_enter(LBS_DEB_ASSOC);
 829
 830         ret = lbs_get_channel(priv);
 831         if (ret > 0) {
 832                 priv->curbssparams.channel = ret;
 833                 ret = 0;
 834         }
 835         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 836         return ret;
 837 }
 838
 839 /**
 840  *  @brief Set the radio channel
 841  *
 842  *  @param priv         A pointer to struct lbs_private structure
 843  *  @param channel      The desired channel, or 0 to clear a locked channel
 844  *
 845  *  @return             0 on success, error on failure
 846  */
 847 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 848 {
 849         struct cmd_ds_802_11_rf_channel cmd;
 850 #ifdef DEBUG
 851         u8 old_channel = priv->curbssparams.channel;
 852 #endif
 853         int ret = 0;
 854
 855         lbs_deb_enter(LBS_DEB_CMD);
 856
 857         memset(&cmd, 0, sizeof(cmd));
 858         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 859         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 860         cmd.channel = cpu_to_le16(channel);
 861
 862         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 863         if (ret)
 864                 goto out;
 865
 866         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 867         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 868                 priv->curbssparams.channel);
 869
 870 out:
 871         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 872         return ret;
 873 }
 874
 875 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 876                                 struct cmd_ds_command *cmd)
 877 {
 878
 879         lbs_deb_enter(LBS_DEB_CMD);
 880         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 881         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 882         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 883
 884         /* reset Beacon SNR/NF/RSSI values */
 885         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 886         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 887         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 888         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 889         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 890         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 891
 892         lbs_deb_leave(LBS_DEB_CMD);
 893         return 0;
 894 }
 895
 896 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 897                                u8 cmd_action, void *pdata_buf)
 898 {
 899         struct lbs_offset_value *offval;
 900
 901         lbs_deb_enter(LBS_DEB_CMD);
 902
 903         offval = (struct lbs_offset_value *)pdata_buf;
 904
 905         switch (le16_to_cpu(cmdptr->command)) {
 906         case CMD_MAC_REG_ACCESS:
 907                 {
 908                         struct cmd_ds_mac_reg_access *macreg;
 909
 910                         cmdptr->size =
 911                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 912                                         + S_DS_GEN);
 913                         macreg =
 914                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 915                             macreg;
 916
 917                         macreg->action = cpu_to_le16(cmd_action);
 918                         macreg->offset = cpu_to_le16((u16) offval->offset);
 919                         macreg->value = cpu_to_le32(offval->value);
 920
 921                         break;
 922                 }
 923
 924         case CMD_BBP_REG_ACCESS:
 925                 {
 926                         struct cmd_ds_bbp_reg_access *bbpreg;
 927
 928                         cmdptr->size =
 929                             cpu_to_le16(sizeof
 930                                              (struct cmd_ds_bbp_reg_access)
 931                                              + S_DS_GEN);
 932                         bbpreg =
 933                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 934                             bbpreg;
 935
 936                         bbpreg->action = cpu_to_le16(cmd_action);
 937                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 938                         bbpreg->value = (u8) offval->value;
 939
 940                         break;
 941                 }
 942
 943         case CMD_RF_REG_ACCESS:
 944                 {
 945                         struct cmd_ds_rf_reg_access *rfreg;
 946
 947                         cmdptr->size =
 948                             cpu_to_le16(sizeof
 949                                              (struct cmd_ds_rf_reg_access) +
 950                                              S_DS_GEN);
 951                         rfreg =
 952                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 953                             rfreg;
 954
 955                         rfreg->action = cpu_to_le16(cmd_action);
 956                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 957                         rfreg->value = (u8) offval->value;
 958
 959                         break;
 960                 }
 961
 962         default:
 963                 break;
 964         }
 965
 966         lbs_deb_leave(LBS_DEB_CMD);
 967         return 0;
 968 }
 969
 970 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 971                                u16 cmd_action, void *pdata_buf)
 972 {
 973         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 974         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 975
 976         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 977         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 978         cmd->result = 0;
 979         bt_access->action = cpu_to_le16(cmd_action);
 980
 981         switch (cmd_action) {
 982         case CMD_ACT_BT_ACCESS_ADD:
 983                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 984                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 985                 break;
 986         case CMD_ACT_BT_ACCESS_DEL:
 987                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 988                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 989                 break;
 990         case CMD_ACT_BT_ACCESS_LIST:
 991                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 992                 break;
 993         case CMD_ACT_BT_ACCESS_RESET:
 994                 break;
 995         case CMD_ACT_BT_ACCESS_SET_INVERT:
 996                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 997                 break;
 998         case CMD_ACT_BT_ACCESS_GET_INVERT:
 999                 break;
1000         default:
1001                 break;
1002         }
1003         lbs_deb_leave(LBS_DEB_CMD);
1004         return 0;
1005 }
1006
1007 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1008                                u16 cmd_action, void *pdata_buf)
1009 {
1010         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1011         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1012
1013         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1014         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1015         cmd->result = 0;
1016
1017         if (pdata_buf)
1018                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1019         else
1020                 memset(fwt_access, 0, sizeof(*fwt_access));
1021
1022         fwt_access->action = cpu_to_le16(cmd_action);
1023
1024         lbs_deb_leave(LBS_DEB_CMD);
1025         return 0;
1026 }
1027
1028 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1029                     struct cmd_ds_mesh_access *cmd)
1030 {
1031         int ret;
1032
1033         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1034
1035         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1036         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1037         cmd->hdr.result = 0;
1038
1039         cmd->action = cpu_to_le16(cmd_action);
1040
1041         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1042
1043         lbs_deb_leave(LBS_DEB_CMD);
1044         return ret;
1045 }
1046
1047 static int __lbs_mesh_config_send(struct lbs_private *priv,
1048                                   struct cmd_ds_mesh_config *cmd,
1049                                   uint16_t action, uint16_t type)
1050 {
1051         int ret;
1052         u16 command = CMD_MESH_CONFIG_OLD;
1053
1054         lbs_deb_enter(LBS_DEB_CMD);
1055
1056         /*
1057          * Command id is 0xac for v10 FW along with mesh interface
1058          * id in bits 14-13-12.
1059          */
1060         if (priv->mesh_fw_ver == MESH_FW_NEW)
1061                 command = CMD_MESH_CONFIG |
1062                           (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
1063
1064         cmd->hdr.command = cpu_to_le16(command);
1065         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1066         cmd->hdr.result = 0;
1067
1068         cmd->type = cpu_to_le16(type);
1069         cmd->action = cpu_to_le16(action);
1070
1071         ret = lbs_cmd_with_response(priv, command, cmd);
1072
1073         lbs_deb_leave(LBS_DEB_CMD);
1074         return ret;
1075 }
1076
1077 int lbs_mesh_config_send(struct lbs_private *priv,
1078                          struct cmd_ds_mesh_config *cmd,
1079                          uint16_t action, uint16_t type)
1080 {
1081         int ret;
1082
1083         if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1084                 return -EOPNOTSUPP;
1085
1086         ret = __lbs_mesh_config_send(priv, cmd, action, type);
1087         return ret;
1088 }
1089
1090 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
1091  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
1092  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1093  * lbs_mesh_config_send.
1094  */
1095 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1096 {
1097         struct cmd_ds_mesh_config cmd;
1098         struct mrvl_meshie *ie;
1099         DECLARE_SSID_BUF(ssid);
1100
1101         memset(&cmd, 0, sizeof(cmd));
1102         cmd.channel = cpu_to_le16(chan);
1103         ie = (struct mrvl_meshie *)cmd.data;
1104
1105         switch (action) {
1106         case CMD_ACT_MESH_CONFIG_START:
1107                 ie->id = WLAN_EID_GENERIC;
1108                 ie->val.oui[0] = 0x00;
1109                 ie->val.oui[1] = 0x50;
1110                 ie->val.oui[2] = 0x43;
1111                 ie->val.type = MARVELL_MESH_IE_TYPE;
1112                 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1113                 ie->val.version = MARVELL_MESH_IE_VERSION;
1114                 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1115                 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1116                 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1117                 ie->val.mesh_id_len = priv->mesh_ssid_len;
1118                 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1119                 ie->len = sizeof(struct mrvl_meshie_val) -
1120                         IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1121                 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1122                 break;
1123         case CMD_ACT_MESH_CONFIG_STOP:
1124                 break;
1125         default:
1126                 return -1;
1127         }
1128         lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1129                     action, priv->mesh_tlv, chan,
1130                     print_ssid(ssid, priv->mesh_ssid, priv->mesh_ssid_len));
1131
1132         return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1133 }
1134
1135 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1136                                 struct cmd_ds_command *cmd,
1137                                 u16 cmd_action)
1138 {
1139         struct cmd_ds_802_11_beacon_control
1140                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1141
1142         lbs_deb_enter(LBS_DEB_CMD);
1143         cmd->size =
1144             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1145                              + S_DS_GEN);
1146         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1147
1148         bcn_ctrl->action = cpu_to_le16(cmd_action);
1149         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1150         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1151
1152         lbs_deb_leave(LBS_DEB_CMD);
1153         return 0;
1154 }
1155
1156 static void lbs_queue_cmd(struct lbs_private *priv,
1157                           struct cmd_ctrl_node *cmdnode)
1158 {
1159         unsigned long flags;
1160         int addtail = 1;
1161
1162         lbs_deb_enter(LBS_DEB_HOST);
1163
1164         if (!cmdnode) {
1165                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1166                 goto done;
1167         }
1168         if (!cmdnode->cmdbuf->size) {
1169                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1170                 goto done;
1171         }
1172         cmdnode->result = 0;
1173
1174         /* Exit_PS command needs to be queued in the header always. */
1175         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1176                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1177
1178                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1179                         if (priv->psstate != PS_STATE_FULL_POWER)
1180                                 addtail = 0;
1181                 }
1182         }
1183
1184         spin_lock_irqsave(&priv->driver_lock, flags);
1185
1186         if (addtail)
1187                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1188         else
1189                 list_add(&cmdnode->list, &priv->cmdpendingq);
1190
1191         spin_unlock_irqrestore(&priv->driver_lock, flags);
1192
1193         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1194                      le16_to_cpu(cmdnode->cmdbuf->command));
1195
1196 done:
1197         lbs_deb_leave(LBS_DEB_HOST);
1198 }
1199
1200 static void lbs_submit_command(struct lbs_private *priv,
1201                                struct cmd_ctrl_node *cmdnode)
1202 {
1203         unsigned long flags;
1204         struct cmd_header *cmd;
1205         uint16_t cmdsize;
1206         uint16_t command;
1207         int timeo = 3 * HZ;
1208         int ret;
1209
1210         lbs_deb_enter(LBS_DEB_HOST);
1211
1212         cmd = cmdnode->cmdbuf;
1213
1214         spin_lock_irqsave(&priv->driver_lock, flags);
1215         priv->cur_cmd = cmdnode;
1216         priv->cur_cmd_retcode = 0;
1217         spin_unlock_irqrestore(&priv->driver_lock, flags);
1218
1219         cmdsize = le16_to_cpu(cmd->size);
1220         command = le16_to_cpu(cmd->command);
1221
1222         /* These commands take longer */
1223         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1224             command == CMD_802_11_AUTHENTICATE)
1225                 timeo = 5 * HZ;
1226
1227         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1228                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1229         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1230
1231         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1232
1233         if (ret) {
1234                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1235                 /* Let the timer kick in and retry, and potentially reset
1236                    the whole thing if the condition persists */
1237                 timeo = HZ/4;
1238         }
1239
1240         /* Setup the timer after transmit command */
1241         mod_timer(&priv->command_timer, jiffies + timeo);
1242
1243         lbs_deb_leave(LBS_DEB_HOST);
1244 }
1245
1246 /**
1247  *  This function inserts command node to cmdfreeq
1248  *  after cleans it. Requires priv->driver_lock held.
1249  */
1250 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1251                                          struct cmd_ctrl_node *cmdnode)
1252 {
1253         lbs_deb_enter(LBS_DEB_HOST);
1254
1255         if (!cmdnode)
1256                 goto out;
1257
1258         cmdnode->callback = NULL;
1259         cmdnode->callback_arg = 0;
1260
1261         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1262
1263         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1264  out:
1265         lbs_deb_leave(LBS_DEB_HOST);
1266 }
1267
1268 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1269         struct cmd_ctrl_node *ptempcmd)
1270 {
1271         unsigned long flags;
1272
1273         spin_lock_irqsave(&priv->driver_lock, flags);
1274         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1275         spin_unlock_irqrestore(&priv->driver_lock, flags);
1276 }
1277
1278 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1279                           int result)
1280 {
1281         if (cmd == priv->cur_cmd)
1282                 priv->cur_cmd_retcode = result;
1283
1284         cmd->result = result;
1285         cmd->cmdwaitqwoken = 1;
1286         wake_up_interruptible(&cmd->cmdwait_q);
1287
1288         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1289                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1290         priv->cur_cmd = NULL;
1291 }
1292
1293 int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
1294 {
1295         struct cmd_ds_802_11_radio_control cmd;
1296         int ret = -EINVAL;
1297
1298         lbs_deb_enter(LBS_DEB_CMD);
1299
1300         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1301         cmd.action = cpu_to_le16(CMD_ACT_SET);
1302
1303         /* Only v8 and below support setting the preamble */
1304         if (priv->fwrelease < 0x09000000) {
1305                 switch (preamble) {
1306                 case RADIO_PREAMBLE_SHORT:
1307                         if (!(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
1308                                 goto out;
1309                         /* Fall through */
1310                 case RADIO_PREAMBLE_AUTO:
1311                 case RADIO_PREAMBLE_LONG:
1312                         cmd.control = cpu_to_le16(preamble);
1313                         break;
1314                 default:
1315                         goto out;
1316                 }
1317         }
1318
1319         if (radio_on)
1320                 cmd.control |= cpu_to_le16(0x1);
1321         else {
1322                 cmd.control &= cpu_to_le16(~0x1);
1323                 priv->txpower_cur = 0;
1324         }
1325
1326         lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1327                     radio_on ? "ON" : "OFF", preamble);
1328
1329         priv->radio_on = radio_on;
1330
1331         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1332
1333 out:
1334         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1335         return ret;
1336 }
1337
1338 void lbs_set_mac_control(struct lbs_private *priv)
1339 {
1340         struct cmd_ds_mac_control cmd;
1341
1342         lbs_deb_enter(LBS_DEB_CMD);
1343
1344         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1345         cmd.action = cpu_to_le16(priv->mac_control);
1346         cmd.reserved = 0;
1347
1348         lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1349
1350         lbs_deb_leave(LBS_DEB_CMD);
1351 }
1352
1353 /**
1354  *  @brief This function prepare the command before send to firmware.
1355  *
1356  *  @param priv         A pointer to struct lbs_private structure
1357  *  @param cmd_no       command number
1358  *  @param cmd_action   command action: GET or SET
1359  *  @param wait_option  wait option: wait response or not
1360  *  @param cmd_oid      cmd oid: treated as sub command
1361  *  @param pdata_buf    A pointer to informaion buffer
1362  *  @return             0 or -1
1363  */
1364 int lbs_prepare_and_send_command(struct lbs_private *priv,
1365                           u16 cmd_no,
1366                           u16 cmd_action,
1367                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1368 {
1369         int ret = 0;
1370         struct cmd_ctrl_node *cmdnode;
1371         struct cmd_ds_command *cmdptr;
1372         unsigned long flags;
1373
1374         lbs_deb_enter(LBS_DEB_HOST);
1375
1376         if (!priv) {
1377                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1378                 ret = -1;
1379                 goto done;
1380         }
1381
1382         if (priv->surpriseremoved) {
1383                 lbs_deb_host("PREP_CMD: card removed\n");
1384                 ret = -1;
1385                 goto done;
1386         }
1387
1388         cmdnode = lbs_get_cmd_ctrl_node(priv);
1389
1390         if (cmdnode == NULL) {
1391                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1392
1393                 /* Wake up main thread to execute next command */
1394                 wake_up_interruptible(&priv->waitq);
1395                 ret = -1;
1396                 goto done;
1397         }
1398
1399         cmdnode->callback = NULL;
1400         cmdnode->callback_arg = (unsigned long)pdata_buf;
1401
1402         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1403
1404         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1405
1406         /* Set sequence number, command and INT option */
1407         priv->seqnum++;
1408         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1409
1410         cmdptr->command = cpu_to_le16(cmd_no);
1411         cmdptr->result = 0;
1412
1413         switch (cmd_no) {
1414         case CMD_802_11_PS_MODE:
1415                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1416                 break;
1417
1418         case CMD_802_11_ASSOCIATE:
1419         case CMD_802_11_REASSOCIATE:
1420                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1421                 break;
1422
1423         case CMD_802_11_AUTHENTICATE:
1424                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1425                 break;
1426
1427         case CMD_MAC_REG_ACCESS:
1428         case CMD_BBP_REG_ACCESS:
1429         case CMD_RF_REG_ACCESS:
1430                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1431                 break;
1432
1433         case CMD_802_11_MONITOR_MODE:
1434                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1435                                           cmd_action, pdata_buf);
1436                 break;
1437
1438         case CMD_802_11_RSSI:
1439                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1440                 break;
1441
1442         case CMD_802_11_SET_AFC:
1443         case CMD_802_11_GET_AFC:
1444
1445                 cmdptr->command = cpu_to_le16(cmd_no);
1446                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1447                                            S_DS_GEN);
1448
1449                 memmove(&cmdptr->params.afc,
1450                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1451
1452                 ret = 0;
1453                 goto done;
1454
1455         case CMD_802_11D_DOMAIN_INFO:
1456                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1457                                                    cmd_no, cmd_action);
1458                 break;
1459
1460         case CMD_802_11_TPC_CFG:
1461                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1462                 cmdptr->size =
1463                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1464                                      S_DS_GEN);
1465
1466                 memmove(&cmdptr->params.tpccfg,
1467                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1468
1469                 ret = 0;
1470                 break;
1471         case CMD_802_11_LED_GPIO_CTRL:
1472                 {
1473                         struct mrvl_ie_ledgpio *gpio =
1474                             (struct mrvl_ie_ledgpio*)
1475                             cmdptr->params.ledgpio.data;
1476
1477                         memmove(&cmdptr->params.ledgpio,
1478                                 pdata_buf,
1479                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1480
1481                         cmdptr->command =
1482                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1483
1484 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1485                         cmdptr->size =
1486                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1487                                 + S_DS_GEN
1488                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1489                         gpio->header.len = gpio->header.len;
1490
1491                         ret = 0;
1492                         break;
1493                 }
1494
1495         case CMD_BT_ACCESS:
1496                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1497                 break;
1498
1499         case CMD_FWT_ACCESS:
1500                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1501                 break;
1502
1503         case CMD_GET_TSF:
1504                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1505                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1506                                            S_DS_GEN);
1507                 ret = 0;
1508                 break;
1509         case CMD_802_11_BEACON_CTRL:
1510                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1511                 break;
1512         default:
1513                 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1514                 ret = -1;
1515                 break;
1516         }
1517
1518         /* return error, since the command preparation failed */
1519         if (ret != 0) {
1520                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1521                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1522                 ret = -1;
1523                 goto done;
1524         }
1525
1526         cmdnode->cmdwaitqwoken = 0;
1527
1528         lbs_queue_cmd(priv, cmdnode);
1529         wake_up_interruptible(&priv->waitq);
1530
1531         if (wait_option & CMD_OPTION_WAITFORRSP) {
1532                 lbs_deb_host("PREP_CMD: wait for response\n");
1533                 might_sleep();
1534                 wait_event_interruptible(cmdnode->cmdwait_q,
1535                                          cmdnode->cmdwaitqwoken);
1536         }
1537
1538         spin_lock_irqsave(&priv->driver_lock, flags);
1539         if (priv->cur_cmd_retcode) {
1540                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1541                        priv->cur_cmd_retcode);
1542                 priv->cur_cmd_retcode = 0;
1543                 ret = -1;
1544         }
1545         spin_unlock_irqrestore(&priv->driver_lock, flags);
1546
1547 done:
1548         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1549         return ret;
1550 }
1551
1552 /**
1553  *  @brief This function allocates the command buffer and link
1554  *  it to command free queue.
1555  *
1556  *  @param priv         A pointer to struct lbs_private structure
1557  *  @return             0 or -1
1558  */
1559 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1560 {
1561         int ret = 0;
1562         u32 bufsize;
1563         u32 i;
1564         struct cmd_ctrl_node *cmdarray;
1565
1566         lbs_deb_enter(LBS_DEB_HOST);
1567
1568         /* Allocate and initialize the command array */
1569         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1570         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1571                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1572                 ret = -1;
1573                 goto done;
1574         }
1575         priv->cmd_array = cmdarray;
1576
1577         /* Allocate and initialize each command buffer in the command array */
1578         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1579                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1580                 if (!cmdarray[i].cmdbuf) {
1581                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1582                         ret = -1;
1583                         goto done;
1584                 }
1585         }
1586
1587         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1588                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1589                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1590         }
1591         ret = 0;
1592
1593 done:
1594         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1595         return ret;
1596 }
1597
1598 /**
1599  *  @brief This function frees the command buffer.
1600  *
1601  *  @param priv         A pointer to struct lbs_private structure
1602  *  @return             0 or -1
1603  */
1604 int lbs_free_cmd_buffer(struct lbs_private *priv)
1605 {
1606         struct cmd_ctrl_node *cmdarray;
1607         unsigned int i;
1608
1609         lbs_deb_enter(LBS_DEB_HOST);
1610
1611         /* need to check if cmd array is allocated or not */
1612         if (priv->cmd_array == NULL) {
1613                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1614                 goto done;
1615         }
1616
1617         cmdarray = priv->cmd_array;
1618
1619         /* Release shared memory buffers */
1620         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1621                 if (cmdarray[i].cmdbuf) {
1622                         kfree(cmdarray[i].cmdbuf);
1623                         cmdarray[i].cmdbuf = NULL;
1624                 }
1625         }
1626
1627         /* Release cmd_ctrl_node */
1628         if (priv->cmd_array) {
1629                 kfree(priv->cmd_array);
1630                 priv->cmd_array = NULL;
1631         }
1632
1633 done:
1634         lbs_deb_leave(LBS_DEB_HOST);
1635         return 0;
1636 }
1637
1638 /**
1639  *  @brief This function gets a free command node if available in
1640  *  command free queue.
1641  *
1642  *  @param priv         A pointer to struct lbs_private structure
1643  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1644  */
1645 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1646 {
1647         struct cmd_ctrl_node *tempnode;
1648         unsigned long flags;
1649
1650         lbs_deb_enter(LBS_DEB_HOST);
1651
1652         if (!priv)
1653                 return NULL;
1654
1655         spin_lock_irqsave(&priv->driver_lock, flags);
1656
1657         if (!list_empty(&priv->cmdfreeq)) {
1658                 tempnode = list_first_entry(&priv->cmdfreeq,
1659                                             struct cmd_ctrl_node, list);
1660                 list_del(&tempnode->list);
1661         } else {
1662                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1663                 tempnode = NULL;
1664         }
1665
1666         spin_unlock_irqrestore(&priv->driver_lock, flags);
1667
1668         lbs_deb_leave(LBS_DEB_HOST);
1669         return tempnode;
1670 }
1671
1672 /**
1673  *  @brief This function executes next command in command
1674  *  pending queue. It will put firmware back to PS mode
1675  *  if applicable.
1676  *
1677  *  @param priv     A pointer to struct lbs_private structure
1678  *  @return        0 or -1
1679  */
1680 int lbs_execute_next_command(struct lbs_private *priv)
1681 {
1682         struct cmd_ctrl_node *cmdnode = NULL;
1683         struct cmd_header *cmd;
1684         unsigned long flags;
1685         int ret = 0;
1686
1687         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1688          * only caller to us is lbs_thread() and we get even when a
1689          * data packet is received */
1690         lbs_deb_enter(LBS_DEB_THREAD);
1691
1692         spin_lock_irqsave(&priv->driver_lock, flags);
1693
1694         if (priv->cur_cmd) {
1695                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1696                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1697                 ret = -1;
1698                 goto done;
1699         }
1700
1701         if (!list_empty(&priv->cmdpendingq)) {
1702                 cmdnode = list_first_entry(&priv->cmdpendingq,
1703                                            struct cmd_ctrl_node, list);
1704         }
1705
1706         spin_unlock_irqrestore(&priv->driver_lock, flags);
1707
1708         if (cmdnode) {
1709                 cmd = cmdnode->cmdbuf;
1710
1711                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1712                         if ((priv->psstate == PS_STATE_SLEEP) ||
1713                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1714                                 lbs_deb_host(
1715                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1716                                        le16_to_cpu(cmd->command),
1717                                        priv->psstate);
1718                                 ret = -1;
1719                                 goto done;
1720                         }
1721                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1722                                      "0x%04x in psstate %d\n",
1723                                      le16_to_cpu(cmd->command), priv->psstate);
1724                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1725                         /*
1726                          * 1. Non-PS command:
1727                          * Queue it. set needtowakeup to TRUE if current state
1728                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1729                          * 2. PS command but not Exit_PS:
1730                          * Ignore it.
1731                          * 3. PS command Exit_PS:
1732                          * Set needtowakeup to TRUE if current state is SLEEP,
1733                          * otherwise send this command down to firmware
1734                          * immediately.
1735                          */
1736                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1737                                 /*  Prepare to send Exit PS,
1738                                  *  this non PS command will be sent later */
1739                                 if ((priv->psstate == PS_STATE_SLEEP)
1740                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1741                                     ) {
1742                                         /* w/ new scheme, it will not reach here.
1743                                            since it is blocked in main_thread. */
1744                                         priv->needtowakeup = 1;
1745                                 } else
1746                                         lbs_ps_wakeup(priv, 0);
1747
1748                                 ret = 0;
1749                                 goto done;
1750                         } else {
1751                                 /*
1752                                  * PS command. Ignore it if it is not Exit_PS.
1753                                  * otherwise send it down immediately.
1754                                  */
1755                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1756
1757                                 lbs_deb_host(
1758                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1759                                        psm->action);
1760                                 if (psm->action !=
1761                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1762                                         lbs_deb_host(
1763                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1764                                         list_del(&cmdnode->list);
1765                                         spin_lock_irqsave(&priv->driver_lock, flags);
1766                                         lbs_complete_command(priv, cmdnode, 0);
1767                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1768
1769                                         ret = 0;
1770                                         goto done;
1771                                 }
1772
1773                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1774                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1775                                         lbs_deb_host(
1776                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1777                                         list_del(&cmdnode->list);
1778                                         spin_lock_irqsave(&priv->driver_lock, flags);
1779                                         lbs_complete_command(priv, cmdnode, 0);
1780                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1781                                         priv->needtowakeup = 1;
1782
1783                                         ret = 0;
1784                                         goto done;
1785                                 }
1786
1787                                 lbs_deb_host(
1788                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1789                         }
1790                 }
1791                 list_del(&cmdnode->list);
1792                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1793                             le16_to_cpu(cmd->command));
1794                 lbs_submit_command(priv, cmdnode);
1795         } else {
1796                 /*
1797                  * check if in power save mode, if yes, put the device back
1798                  * to PS mode
1799                  */
1800                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1801                     (priv->psstate == PS_STATE_FULL_POWER) &&
1802                     ((priv->connect_status == LBS_CONNECTED) ||
1803                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1804                         if (priv->secinfo.WPAenabled ||
1805                             priv->secinfo.WPA2enabled) {
1806                                 /* check for valid WPA group keys */
1807                                 if (priv->wpa_mcast_key.len ||
1808                                     priv->wpa_unicast_key.len) {
1809                                         lbs_deb_host(
1810                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1811                                                " go back to PS_SLEEP");
1812                                         lbs_ps_sleep(priv, 0);
1813                                 }
1814                         } else {
1815                                 lbs_deb_host(
1816                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1817                                        "go back to PS_SLEEP");
1818                                 lbs_ps_sleep(priv, 0);
1819                         }
1820                 }
1821         }
1822
1823         ret = 0;
1824 done:
1825         lbs_deb_leave(LBS_DEB_THREAD);
1826         return ret;
1827 }
1828
1829 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1830 {
1831         union iwreq_data iwrq;
1832         u8 buf[50];
1833
1834         lbs_deb_enter(LBS_DEB_WEXT);
1835
1836         memset(&iwrq, 0, sizeof(union iwreq_data));
1837         memset(buf, 0, sizeof(buf));
1838
1839         snprintf(buf, sizeof(buf) - 1, "%s", str);
1840
1841         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1842
1843         /* Send Event to upper layer */
1844         lbs_deb_wext("event indication string %s\n", (char *)buf);
1845         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1846         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1847
1848         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1849
1850         lbs_deb_leave(LBS_DEB_WEXT);
1851 }
1852
1853 static void lbs_send_confirmsleep(struct lbs_private *priv)
1854 {
1855         unsigned long flags;
1856         int ret;
1857
1858         lbs_deb_enter(LBS_DEB_HOST);
1859         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1860                 sizeof(confirm_sleep));
1861
1862         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1863                 sizeof(confirm_sleep));
1864         if (ret) {
1865                 lbs_pr_alert("confirm_sleep failed\n");
1866                 goto out;
1867         }
1868
1869         spin_lock_irqsave(&priv->driver_lock, flags);
1870
1871         /* We don't get a response on the sleep-confirmation */
1872         priv->dnld_sent = DNLD_RES_RECEIVED;
1873
1874         /* If nothing to do, go back to sleep (?) */
1875         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1876                 priv->psstate = PS_STATE_SLEEP;
1877
1878         spin_unlock_irqrestore(&priv->driver_lock, flags);
1879
1880 out:
1881         lbs_deb_leave(LBS_DEB_HOST);
1882 }
1883
1884 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1885 {
1886         lbs_deb_enter(LBS_DEB_HOST);
1887
1888         /*
1889          * PS is currently supported only in Infrastructure mode
1890          * Remove this check if it is to be supported in IBSS mode also
1891          */
1892
1893         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1894                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1895
1896         lbs_deb_leave(LBS_DEB_HOST);
1897 }
1898
1899 /**
1900  *  @brief This function sends Exit_PS command to firmware.
1901  *
1902  *  @param priv         A pointer to struct lbs_private structure
1903  *  @param wait_option  wait response or not
1904  *  @return             n/a
1905  */
1906 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1907 {
1908         __le32 Localpsmode;
1909
1910         lbs_deb_enter(LBS_DEB_HOST);
1911
1912         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1913
1914         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1915                               CMD_SUBCMD_EXIT_PS,
1916                               wait_option, 0, &Localpsmode);
1917
1918         lbs_deb_leave(LBS_DEB_HOST);
1919 }
1920
1921 /**
1922  *  @brief This function checks condition and prepares to
1923  *  send sleep confirm command to firmware if ok.
1924  *
1925  *  @param priv         A pointer to struct lbs_private structure
1926  *  @param psmode       Power Saving mode
1927  *  @return             n/a
1928  */
1929 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1930 {
1931         unsigned long flags =0;
1932         int allowed = 1;
1933
1934         lbs_deb_enter(LBS_DEB_HOST);
1935
1936         spin_lock_irqsave(&priv->driver_lock, flags);
1937         if (priv->dnld_sent) {
1938                 allowed = 0;
1939                 lbs_deb_host("dnld_sent was set\n");
1940         }
1941
1942         /* In-progress command? */
1943         if (priv->cur_cmd) {
1944                 allowed = 0;
1945                 lbs_deb_host("cur_cmd was set\n");
1946         }
1947
1948         /* Pending events or command responses? */
1949         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1950                 allowed = 0;
1951                 lbs_deb_host("pending events or command responses\n");
1952         }
1953         spin_unlock_irqrestore(&priv->driver_lock, flags);
1954
1955         if (allowed) {
1956                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1957                 lbs_send_confirmsleep(priv);
1958         } else {
1959                 lbs_deb_host("sleep confirm has been delayed\n");
1960         }
1961
1962         lbs_deb_leave(LBS_DEB_HOST);
1963 }
1964
1965
1966 /**
1967  * @brief Configures the transmission power control functionality.
1968  *
1969  * @param priv          A pointer to struct lbs_private structure
1970  * @param enable        Transmission power control enable
1971  * @param p0            Power level when link quality is good (dBm).
1972  * @param p1            Power level when link quality is fair (dBm).
1973  * @param p2            Power level when link quality is poor (dBm).
1974  * @param usesnr        Use Signal to Noise Ratio in TPC
1975  *
1976  * @return 0 on success
1977  */
1978 int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
1979                 int8_t p2, int usesnr)
1980 {
1981         struct cmd_ds_802_11_tpc_cfg cmd;
1982         int ret;
1983
1984         memset(&cmd, 0, sizeof(cmd));
1985         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1986         cmd.action = cpu_to_le16(CMD_ACT_SET);
1987         cmd.enable = !!enable;
1988         cmd.usesnr = !!usesnr;
1989         cmd.P0 = p0;
1990         cmd.P1 = p1;
1991         cmd.P2 = p2;
1992
1993         ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
1994
1995         return ret;
1996 }
1997
1998 /**
1999  * @brief Configures the power adaptation settings.
2000  *
2001  * @param priv          A pointer to struct lbs_private structure
2002  * @param enable        Power adaptation enable
2003  * @param p0            Power level for 1, 2, 5.5 and 11 Mbps (dBm).
2004  * @param p1            Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
2005  * @param p2            Power level for 48 and 54 Mbps (dBm).
2006  *
2007  * @return 0 on Success
2008  */
2009
2010 int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
2011                 int8_t p1, int8_t p2)
2012 {
2013         struct cmd_ds_802_11_pa_cfg cmd;
2014         int ret;
2015
2016         memset(&cmd, 0, sizeof(cmd));
2017         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2018         cmd.action = cpu_to_le16(CMD_ACT_SET);
2019         cmd.enable = !!enable;
2020         cmd.P0 = p0;
2021         cmd.P1 = p1;
2022         cmd.P2 = p2;
2023
2024         ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
2025
2026         return ret;
2027 }
2028
2029
2030 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
2031         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
2032         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2033         unsigned long callback_arg)
2034 {
2035         struct cmd_ctrl_node *cmdnode;
2036
2037         lbs_deb_enter(LBS_DEB_HOST);
2038
2039         if (priv->surpriseremoved) {
2040                 lbs_deb_host("PREP_CMD: card removed\n");
2041                 cmdnode = ERR_PTR(-ENOENT);
2042                 goto done;
2043         }
2044
2045         cmdnode = lbs_get_cmd_ctrl_node(priv);
2046         if (cmdnode == NULL) {
2047                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2048
2049                 /* Wake up main thread to execute next command */
2050                 wake_up_interruptible(&priv->waitq);
2051                 cmdnode = ERR_PTR(-ENOBUFS);
2052                 goto done;
2053         }
2054
2055         cmdnode->callback = callback;
2056         cmdnode->callback_arg = callback_arg;
2057
2058         /* Copy the incoming command to the buffer */
2059         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2060
2061         /* Set sequence number, clean result, move to buffer */
2062         priv->seqnum++;
2063         cmdnode->cmdbuf->command = cpu_to_le16(command);
2064         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2065         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2066         cmdnode->cmdbuf->result  = 0;
2067
2068         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2069
2070         cmdnode->cmdwaitqwoken = 0;
2071         lbs_queue_cmd(priv, cmdnode);
2072         wake_up_interruptible(&priv->waitq);
2073
2074  done:
2075         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2076         return cmdnode;
2077 }
2078
2079 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2080         struct cmd_header *in_cmd, int in_cmd_size)
2081 {
2082         lbs_deb_enter(LBS_DEB_CMD);
2083         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2084                 lbs_cmd_async_callback, 0);
2085         lbs_deb_leave(LBS_DEB_CMD);
2086 }
2087
2088 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2089               struct cmd_header *in_cmd, int in_cmd_size,
2090               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2091               unsigned long callback_arg)
2092 {
2093         struct cmd_ctrl_node *cmdnode;
2094         unsigned long flags;
2095         int ret = 0;
2096
2097         lbs_deb_enter(LBS_DEB_HOST);
2098
2099         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2100                                   callback, callback_arg);
2101         if (IS_ERR(cmdnode)) {
2102                 ret = PTR_ERR(cmdnode);
2103                 goto done;
2104         }
2105
2106         might_sleep();
2107         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2108
2109         spin_lock_irqsave(&priv->driver_lock, flags);
2110         ret = cmdnode->result;
2111         if (ret)
2112                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2113                             command, ret);
2114
2115         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2116         spin_unlock_irqrestore(&priv->driver_lock, flags);
2117
2118 done:
2119         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2120         return ret;
2121 }
2122 EXPORT_SYMBOL_GPL(__lbs_cmd);
2123
2124