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 "decl.h"
  11 #include "defs.h"
  12 #include "dev.h"
  13 #include "assoc.h"
  14 #include "wext.h"
  15 #include "cmd.h"
  16
  17 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
  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 This function checks if the command is allowed.
  78  *
  79  *  @param priv         A pointer to lbs_private structure
  80  *  @return             allowed or not allowed.
  81  */
  82
  83 static int lbs_is_cmd_allowed(struct lbs_private *priv)
  84 {
  85         int ret = 1;
  86
  87         lbs_deb_enter(LBS_DEB_CMD);
  88
  89         if (!priv->is_auto_deep_sleep_enabled) {
  90                 if (priv->is_deep_sleep) {
  91                         lbs_deb_cmd("command not allowed in deep sleep\n");
  92                         ret = 0;
  93                 }
  94         }
  95
  96         lbs_deb_leave(LBS_DEB_CMD);
  97         return ret;
  98 }
  99
 100 /**
 101  *  @brief Updates the hardware details like MAC address and regulatory region
 102  *
 103  *  @param priv         A pointer to struct lbs_private structure
 104  *
 105  *  @return             0 on success, error on failure
 106  */
 107 int lbs_update_hw_spec(struct lbs_private *priv)
 108 {
 109         struct cmd_ds_get_hw_spec cmd;
 110         int ret = -1;
 111         u32 i;
 112
 113         lbs_deb_enter(LBS_DEB_CMD);
 114
 115         memset(&cmd, 0, sizeof(cmd));
 116         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 117         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
 118         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
 119         if (ret)
 120                 goto out;
 121
 122         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
 123
 124         /* The firmware release is in an interesting format: the patch
 125          * level is in the most significant nibble ... so fix that: */
 126         priv->fwrelease = le32_to_cpu(cmd.fwrelease);
 127         priv->fwrelease = (priv->fwrelease << 8) |
 128                 (priv->fwrelease >> 24 & 0xff);
 129
 130         /* Some firmware capabilities:
 131          * CF card    firmware 5.0.16p0:   cap 0x00000303
 132          * USB dongle firmware 5.110.17p2: cap 0x00000303
 133          */
 134         lbs_pr_info("%pM, fw %u.%u.%up%u, cap 0x%08x\n",
 135                 cmd.permanentaddr,
 136                 priv->fwrelease >> 24 & 0xff,
 137                 priv->fwrelease >> 16 & 0xff,
 138                 priv->fwrelease >>  8 & 0xff,
 139                 priv->fwrelease       & 0xff,
 140                 priv->fwcapinfo);
 141         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
 142                     cmd.hwifversion, cmd.version);
 143
 144         /* Determine mesh_fw_ver from fwrelease and fwcapinfo */
 145         /* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
 146         /* 5.110.22 have mesh command with 0xa3 command id */
 147         /* 10.0.0.p0 FW brings in mesh config command with different id */
 148         /* Check FW version MSB and initialize mesh_fw_ver */
 149         if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
 150                 priv->mesh_fw_ver = MESH_FW_OLD;
 151         else if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
 152                 (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK))
 153                 priv->mesh_fw_ver = MESH_FW_NEW;
 154         else
 155                 priv->mesh_fw_ver = MESH_NONE;
 156
 157         /* Clamp region code to 8-bit since FW spec indicates that it should
 158          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
 159          * returns non-zero high 8 bits here.
 160          *
 161          * Firmware version 4.0.102 used in CF8381 has region code shifted.  We
 162          * need to check for this problem and handle it properly.
 163          */
 164         if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V4)
 165                 priv->regioncode = (le16_to_cpu(cmd.regioncode) >> 8) & 0xFF;
 166         else
 167                 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
 168
 169         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 170                 /* use the region code to search for the index */
 171                 if (priv->regioncode == lbs_region_code_to_index[i])
 172                         break;
 173         }
 174
 175         /* if it's unidentified region code, use the default (USA) */
 176         if (i >= MRVDRV_MAX_REGION_CODE) {
 177                 priv->regioncode = 0x10;
 178                 lbs_pr_info("unidentified region code; using the default (USA)\n");
 179         }
 180
 181         if (priv->current_addr[0] == 0xff)
 182                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
 183
 184         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
 185         if (priv->mesh_dev)
 186                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 187
 188         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
 189                 ret = -1;
 190                 goto out;
 191         }
 192
 193         if (lbs_set_universaltable(priv, 0)) {
 194                 ret = -1;
 195                 goto out;
 196         }
 197
 198 out:
 199         lbs_deb_leave(LBS_DEB_CMD);
 200         return ret;
 201 }
 202
 203 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
 204                 struct wol_config *p_wol_config)
 205 {
 206         struct cmd_ds_host_sleep cmd_config;
 207         int ret;
 208
 209         cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
 210         cmd_config.criteria = cpu_to_le32(criteria);
 211         cmd_config.gpio = priv->wol_gpio;
 212         cmd_config.gap = priv->wol_gap;
 213
 214         if (p_wol_config != NULL)
 215                 memcpy((uint8_t *)&cmd_config.wol_conf, (uint8_t *)p_wol_config,
 216                                 sizeof(struct wol_config));
 217         else
 218                 cmd_config.wol_conf.action = CMD_ACT_ACTION_NONE;
 219
 220         ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
 221         if (!ret) {
 222                 if (criteria) {
 223                         lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
 224                         priv->wol_criteria = criteria;
 225                 } else
 226                         memcpy((uint8_t *) p_wol_config,
 227                                         (uint8_t *)&cmd_config.wol_conf,
 228                                         sizeof(struct wol_config));
 229         } else {
 230                 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
 231         }
 232
 233         return ret;
 234 }
 235 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
 236
 237 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
 238                                    u16 cmd_action)
 239 {
 240         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
 241
 242         lbs_deb_enter(LBS_DEB_CMD);
 243
 244         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
 245         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
 246                                 S_DS_GEN);
 247         psm->action = cpu_to_le16(cmd_action);
 248         psm->multipledtim = 0;
 249         switch (cmd_action) {
 250         case CMD_SUBCMD_ENTER_PS:
 251                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
 252
 253                 psm->locallisteninterval = 0;
 254                 psm->nullpktinterval = 0;
 255                 psm->multipledtim =
 256                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
 257                 break;
 258
 259         case CMD_SUBCMD_EXIT_PS:
 260                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
 261                 break;
 262
 263         case CMD_SUBCMD_SLEEP_CONFIRMED:
 264                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
 265                 break;
 266
 267         default:
 268                 break;
 269         }
 270
 271         lbs_deb_leave(LBS_DEB_CMD);
 272         return 0;
 273 }
 274
 275 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
 276                                       uint16_t cmd_action, uint16_t *timeout)
 277 {
 278         struct cmd_ds_802_11_inactivity_timeout cmd;
 279         int ret;
 280
 281         lbs_deb_enter(LBS_DEB_CMD);
 282
 283         cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
 284         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 285
 286         cmd.action = cpu_to_le16(cmd_action);
 287
 288         if (cmd_action == CMD_ACT_SET)
 289                 cmd.timeout = cpu_to_le16(*timeout);
 290         else
 291                 cmd.timeout = 0;
 292
 293         ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
 294
 295         if (!ret)
 296                 *timeout = le16_to_cpu(cmd.timeout);
 297
 298         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 299         return 0;
 300 }
 301
 302 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
 303                                 struct sleep_params *sp)
 304 {
 305         struct cmd_ds_802_11_sleep_params cmd;
 306         int ret;
 307
 308         lbs_deb_enter(LBS_DEB_CMD);
 309
 310         if (cmd_action == CMD_ACT_GET) {
 311                 memset(&cmd, 0, sizeof(cmd));
 312         } else {
 313                 cmd.error = cpu_to_le16(sp->sp_error);
 314                 cmd.offset = cpu_to_le16(sp->sp_offset);
 315                 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
 316                 cmd.calcontrol = sp->sp_calcontrol;
 317                 cmd.externalsleepclk = sp->sp_extsleepclk;
 318                 cmd.reserved = cpu_to_le16(sp->sp_reserved);
 319         }
 320         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 321         cmd.action = cpu_to_le16(cmd_action);
 322
 323         ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
 324
 325         if (!ret) {
 326                 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
 327                             "calcontrol 0x%x extsleepclk 0x%x\n",
 328                             le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
 329                             le16_to_cpu(cmd.stabletime), cmd.calcontrol,
 330                             cmd.externalsleepclk);
 331
 332                 sp->sp_error = le16_to_cpu(cmd.error);
 333                 sp->sp_offset = le16_to_cpu(cmd.offset);
 334                 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
 335                 sp->sp_calcontrol = cmd.calcontrol;
 336                 sp->sp_extsleepclk = cmd.externalsleepclk;
 337                 sp->sp_reserved = le16_to_cpu(cmd.reserved);
 338         }
 339
 340         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 341         return 0;
 342 }
 343
 344 static int lbs_wait_for_ds_awake(struct lbs_private *priv)
 345 {
 346         int ret = 0;
 347
 348         lbs_deb_enter(LBS_DEB_CMD);
 349
 350         if (priv->is_deep_sleep) {
 351                 if (!wait_event_interruptible_timeout(priv->ds_awake_q,
 352                                         !priv->is_deep_sleep, (10 * HZ))) {
 353                         lbs_pr_err("ds_awake_q: timer expired\n");
 354                         ret = -1;
 355                 }
 356         }
 357
 358         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 359         return ret;
 360 }
 361
 362 int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep)
 363 {
 364         int ret =  0;
 365
 366         lbs_deb_enter(LBS_DEB_CMD);
 367
 368         if (deep_sleep) {
 369                 if (priv->is_deep_sleep != 1) {
 370                         lbs_deb_cmd("deep sleep: sleep\n");
 371                         BUG_ON(!priv->enter_deep_sleep);
 372                         ret = priv->enter_deep_sleep(priv);
 373                         if (!ret) {
 374                                 netif_stop_queue(priv->dev);
 375                                 netif_carrier_off(priv->dev);
 376                         }
 377                 } else {
 378                         lbs_pr_err("deep sleep: already enabled\n");
 379                 }
 380         } else {
 381                 if (priv->is_deep_sleep) {
 382                         lbs_deb_cmd("deep sleep: wakeup\n");
 383                         BUG_ON(!priv->exit_deep_sleep);
 384                         ret = priv->exit_deep_sleep(priv);
 385                         if (!ret) {
 386                                 ret = lbs_wait_for_ds_awake(priv);
 387                                 if (ret)
 388                                         lbs_pr_err("deep sleep: wakeup"
 389                                                         "failed\n");
 390                         }
 391                 }
 392         }
 393
 394         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 395         return ret;
 396 }
 397
 398 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
 399                            struct assoc_request *assoc)
 400 {
 401         struct cmd_ds_802_11_set_wep cmd;
 402         int ret = 0;
 403
 404         lbs_deb_enter(LBS_DEB_CMD);
 405
 406         memset(&cmd, 0, sizeof(cmd));
 407         cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
 408         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 409
 410         cmd.action = cpu_to_le16(cmd_action);
 411
 412         if (cmd_action == CMD_ACT_ADD) {
 413                 int i;
 414
 415                 /* default tx key index */
 416                 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
 417                                            CMD_WEP_KEY_INDEX_MASK);
 418
 419                 /* Copy key types and material to host command structure */
 420                 for (i = 0; i < 4; i++) {
 421                         struct enc_key *pkey = &assoc->wep_keys[i];
 422
 423                         switch (pkey->len) {
 424                         case KEY_LEN_WEP_40:
 425                                 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
 426                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 427                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
 428                                 break;
 429                         case KEY_LEN_WEP_104:
 430                                 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
 431                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 432                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
 433                                 break;
 434                         case 0:
 435                                 break;
 436                         default:
 437                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
 438                                             i, pkey->len);
 439                                 ret = -1;
 440                                 goto done;
 441                                 break;
 442                         }
 443                 }
 444         } else if (cmd_action == CMD_ACT_REMOVE) {
 445                 /* ACT_REMOVE clears _all_ WEP keys */
 446
 447                 /* default tx key index */
 448                 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
 449                                            CMD_WEP_KEY_INDEX_MASK);
 450                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
 451         }
 452
 453         ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
 454 done:
 455         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 456         return ret;
 457 }
 458
 459 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
 460                               uint16_t *enable)
 461 {
 462         struct cmd_ds_802_11_enable_rsn cmd;
 463         int ret;
 464
 465         lbs_deb_enter(LBS_DEB_CMD);
 466
 467         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 468         cmd.action = cpu_to_le16(cmd_action);
 469
 470         if (cmd_action == CMD_ACT_GET)
 471                 cmd.enable = 0;
 472         else {
 473                 if (*enable)
 474                         cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
 475                 else
 476                         cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
 477                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
 478         }
 479
 480         ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
 481         if (!ret && cmd_action == CMD_ACT_GET)
 482                 *enable = le16_to_cpu(cmd.enable);
 483
 484         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 485         return ret;
 486 }
 487
 488 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
 489                             struct enc_key *key)
 490 {
 491         lbs_deb_enter(LBS_DEB_CMD);
 492
 493         if (key->flags & KEY_INFO_WPA_ENABLED)
 494                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
 495         if (key->flags & KEY_INFO_WPA_UNICAST)
 496                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
 497         if (key->flags & KEY_INFO_WPA_MCAST)
 498                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
 499
 500         keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
 501         keyparam->keytypeid = cpu_to_le16(key->type);
 502         keyparam->keylen = cpu_to_le16(key->len);
 503         memcpy(keyparam->key, key->key, key->len);
 504
 505         /* Length field doesn't include the {type,length} header */
 506         keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
 507         lbs_deb_leave(LBS_DEB_CMD);
 508 }
 509
 510 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
 511                                 struct assoc_request *assoc)
 512 {
 513         struct cmd_ds_802_11_key_material cmd;
 514         int ret = 0;
 515         int index = 0;
 516
 517         lbs_deb_enter(LBS_DEB_CMD);
 518
 519         cmd.action = cpu_to_le16(cmd_action);
 520         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 521
 522         if (cmd_action == CMD_ACT_GET) {
 523                 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
 524         } else {
 525                 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
 526
 527                 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
 528                         set_one_wpa_key(&cmd.keyParamSet[index],
 529                                         &assoc->wpa_unicast_key);
 530                         index++;
 531                 }
 532
 533                 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
 534                         set_one_wpa_key(&cmd.keyParamSet[index],
 535                                         &assoc->wpa_mcast_key);
 536                         index++;
 537                 }
 538
 539                 /* The common header and as many keys as we included */
 540                 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
 541                                                     keyParamSet[index]));
 542         }
 543         ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
 544         /* Copy the returned key to driver private data */
 545         if (!ret && cmd_action == CMD_ACT_GET) {
 546                 void *buf_ptr = cmd.keyParamSet;
 547                 void *resp_end = &(&cmd)[1];
 548
 549                 while (buf_ptr < resp_end) {
 550                         struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
 551                         struct enc_key *key;
 552                         uint16_t param_set_len = le16_to_cpu(keyparam->length);
 553                         uint16_t key_len = le16_to_cpu(keyparam->keylen);
 554                         uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
 555                         uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
 556                         void *end;
 557
 558                         end = (void *)keyparam + sizeof(keyparam->type)
 559                                 + sizeof(keyparam->length) + param_set_len;
 560
 561                         /* Make sure we don't access past the end of the IEs */
 562                         if (end > resp_end)
 563                                 break;
 564
 565                         if (key_flags & KEY_INFO_WPA_UNICAST)
 566                                 key = &priv->wpa_unicast_key;
 567                         else if (key_flags & KEY_INFO_WPA_MCAST)
 568                                 key = &priv->wpa_mcast_key;
 569                         else
 570                                 break;
 571
 572                         /* Copy returned key into driver */
 573                         memset(key, 0, sizeof(struct enc_key));
 574                         if (key_len > sizeof(key->key))
 575                                 break;
 576                         key->type = key_type;
 577                         key->flags = key_flags;
 578                         key->len = key_len;
 579                         memcpy(key->key, keyparam->key, key->len);
 580
 581                         buf_ptr = end + 1;
 582                 }
 583         }
 584
 585         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 586         return ret;
 587 }
 588
 589 /**
 590  *  @brief Set an SNMP MIB value
 591  *
 592  *  @param priv         A pointer to struct lbs_private structure
 593  *  @param oid          The OID to set in the firmware
 594  *  @param val          Value to set the OID to
 595  *
 596  *  @return             0 on success, error on failure
 597  */
 598 int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
 599 {
 600         struct cmd_ds_802_11_snmp_mib cmd;
 601         int ret;
 602
 603         lbs_deb_enter(LBS_DEB_CMD);
 604
 605         memset(&cmd, 0, sizeof (cmd));
 606         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 607         cmd.action = cpu_to_le16(CMD_ACT_SET);
 608         cmd.oid = cpu_to_le16((u16) oid);
 609
 610         switch (oid) {
 611         case SNMP_MIB_OID_BSS_TYPE:
 612                 cmd.bufsize = cpu_to_le16(sizeof(u8));
 613                 cmd.value[0] = (val == IW_MODE_ADHOC) ? 2 : 1;
 614                 break;
 615         case SNMP_MIB_OID_11D_ENABLE:
 616         case SNMP_MIB_OID_FRAG_THRESHOLD:
 617         case SNMP_MIB_OID_RTS_THRESHOLD:
 618         case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
 619         case SNMP_MIB_OID_LONG_RETRY_LIMIT:
 620                 cmd.bufsize = cpu_to_le16(sizeof(u16));
 621                 *((__le16 *)(&cmd.value)) = cpu_to_le16(val);
 622                 break;
 623         default:
 624                 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
 625                 ret = -EINVAL;
 626                 goto out;
 627         }
 628
 629         lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
 630                     le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
 631
 632         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 633
 634 out:
 635         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 636         return ret;
 637 }
 638
 639 /**
 640  *  @brief Get an SNMP MIB value
 641  *
 642  *  @param priv         A pointer to struct lbs_private structure
 643  *  @param oid          The OID to retrieve from the firmware
 644  *  @param out_val      Location for the returned value
 645  *
 646  *  @return             0 on success, error on failure
 647  */
 648 int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
 649 {
 650         struct cmd_ds_802_11_snmp_mib cmd;
 651         int ret;
 652
 653         lbs_deb_enter(LBS_DEB_CMD);
 654
 655         memset(&cmd, 0, sizeof (cmd));
 656         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 657         cmd.action = cpu_to_le16(CMD_ACT_GET);
 658         cmd.oid = cpu_to_le16(oid);
 659
 660         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 661         if (ret)
 662                 goto out;
 663
 664         switch (le16_to_cpu(cmd.bufsize)) {
 665         case sizeof(u8):
 666                 if (oid == SNMP_MIB_OID_BSS_TYPE) {
 667                         if (cmd.value[0] == 2)
 668                                 *out_val = IW_MODE_ADHOC;
 669                         else
 670                                 *out_val = IW_MODE_INFRA;
 671                 } else
 672                         *out_val = cmd.value[0];
 673                 break;
 674         case sizeof(u16):
 675                 *out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
 676                 break;
 677         default:
 678                 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
 679                             oid, le16_to_cpu(cmd.bufsize));
 680                 break;
 681         }
 682
 683 out:
 684         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 685         return ret;
 686 }
 687
 688 /**
 689  *  @brief Get the min, max, and current TX power
 690  *
 691  *  @param priv         A pointer to struct lbs_private structure
 692  *  @param curlevel     Current power level in dBm
 693  *  @param minlevel     Minimum supported power level in dBm (optional)
 694  *  @param maxlevel     Maximum supported power level in dBm (optional)
 695  *
 696  *  @return             0 on success, error on failure
 697  */
 698 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
 699                      s16 *maxlevel)
 700 {
 701         struct cmd_ds_802_11_rf_tx_power cmd;
 702         int ret;
 703
 704         lbs_deb_enter(LBS_DEB_CMD);
 705
 706         memset(&cmd, 0, sizeof(cmd));
 707         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 708         cmd.action = cpu_to_le16(CMD_ACT_GET);
 709
 710         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 711         if (ret == 0) {
 712                 *curlevel = le16_to_cpu(cmd.curlevel);
 713                 if (minlevel)
 714                         *minlevel = cmd.minlevel;
 715                 if (maxlevel)
 716                         *maxlevel = cmd.maxlevel;
 717         }
 718
 719         lbs_deb_leave(LBS_DEB_CMD);
 720         return ret;
 721 }
 722
 723 /**
 724  *  @brief Set the TX power
 725  *
 726  *  @param priv         A pointer to struct lbs_private structure
 727  *  @param dbm          The desired power level in dBm
 728  *
 729  *  @return             0 on success, error on failure
 730  */
 731 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
 732 {
 733         struct cmd_ds_802_11_rf_tx_power cmd;
 734         int ret;
 735
 736         lbs_deb_enter(LBS_DEB_CMD);
 737
 738         memset(&cmd, 0, sizeof(cmd));
 739         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 740         cmd.action = cpu_to_le16(CMD_ACT_SET);
 741         cmd.curlevel = cpu_to_le16(dbm);
 742
 743         lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
 744
 745         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 746
 747         lbs_deb_leave(LBS_DEB_CMD);
 748         return ret;
 749 }
 750
 751 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 752                                       u16 cmd_action, void *pdata_buf)
 753 {
 754         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 755
 756         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 757         cmd->size =
 758             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 759                              S_DS_GEN);
 760
 761         monitor->action = cpu_to_le16(cmd_action);
 762         if (cmd_action == CMD_ACT_SET) {
 763                 monitor->mode =
 764                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 765         }
 766
 767         return 0;
 768 }
 769
 770 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
 771 {
 772 /*              Bit     Rate
 773 *               15:13 Reserved
 774 *               12    54 Mbps
 775 *               11    48 Mbps
 776 *               10    36 Mbps
 777 *               9     24 Mbps
 778 *               8     18 Mbps
 779 *               7     12 Mbps
 780 *               6     9 Mbps
 781 *               5     6 Mbps
 782 *               4     Reserved
 783 *               3     11 Mbps
 784 *               2     5.5 Mbps
 785 *               1     2 Mbps
 786 *               0     1 Mbps
 787 **/
 788
 789         uint16_t ratemask;
 790         int i = lbs_data_rate_to_fw_index(rate);
 791         if (lower_rates_ok)
 792                 ratemask = (0x1fef >> (12 - i));
 793         else
 794                 ratemask = (1 << i);
 795         return cpu_to_le16(ratemask);
 796 }
 797
 798 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 799                                       uint16_t cmd_action)
 800 {
 801         struct cmd_ds_802_11_rate_adapt_rateset cmd;
 802         int ret;
 803
 804         lbs_deb_enter(LBS_DEB_CMD);
 805
 806         if (!priv->cur_rate && !priv->enablehwauto)
 807                 return -EINVAL;
 808
 809         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 810
 811         cmd.action = cpu_to_le16(cmd_action);
 812         cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
 813         cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
 814         ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
 815         if (!ret && cmd_action == CMD_ACT_GET) {
 816                 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
 817                 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
 818         }
 819
 820         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 821         return ret;
 822 }
 823 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
 824
 825 /**
 826  *  @brief Set the data rate
 827  *
 828  *  @param priv         A pointer to struct lbs_private structure
 829  *  @param rate         The desired data rate, or 0 to clear a locked rate
 830  *
 831  *  @return             0 on success, error on failure
 832  */
 833 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 834 {
 835         struct cmd_ds_802_11_data_rate cmd;
 836         int ret = 0;
 837
 838         lbs_deb_enter(LBS_DEB_CMD);
 839
 840         memset(&cmd, 0, sizeof(cmd));
 841         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 842
 843         if (rate > 0) {
 844                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 845                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 846                 if (cmd.rates[0] == 0) {
 847                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 848                                     " 0x%02X\n", rate);
 849                         ret = 0;
 850                         goto out;
 851                 }
 852                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 853         } else {
 854                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 855                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 856         }
 857
 858         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 859         if (ret)
 860                 goto out;
 861
 862         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 863
 864         /* FIXME: get actual rates FW can do if this command actually returns
 865          * all data rates supported.
 866          */
 867         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 868         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 869
 870 out:
 871         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 872         return ret;
 873 }
 874
 875 /**
 876  *  @brief Get the radio channel
 877  *
 878  *  @param priv         A pointer to struct lbs_private structure
 879  *
 880  *  @return             The channel on success, error on failure
 881  */
 882 int lbs_get_channel(struct lbs_private *priv)
 883 {
 884         struct cmd_ds_802_11_rf_channel cmd;
 885         int ret = 0;
 886
 887         lbs_deb_enter(LBS_DEB_CMD);
 888
 889         memset(&cmd, 0, sizeof(cmd));
 890         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 891         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 892
 893         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 894         if (ret)
 895                 goto out;
 896
 897         ret = le16_to_cpu(cmd.channel);
 898         lbs_deb_cmd("current radio channel is %d\n", ret);
 899
 900 out:
 901         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 902         return ret;
 903 }
 904
 905 int lbs_update_channel(struct lbs_private *priv)
 906 {
 907         int ret;
 908
 909         /* the channel in f/w could be out of sync; get the current channel */
 910         lbs_deb_enter(LBS_DEB_ASSOC);
 911
 912         ret = lbs_get_channel(priv);
 913         if (ret > 0) {
 914                 priv->curbssparams.channel = ret;
 915                 ret = 0;
 916         }
 917         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 918         return ret;
 919 }
 920
 921 /**
 922  *  @brief Set the radio channel
 923  *
 924  *  @param priv         A pointer to struct lbs_private structure
 925  *  @param channel      The desired channel, or 0 to clear a locked channel
 926  *
 927  *  @return             0 on success, error on failure
 928  */
 929 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 930 {
 931         struct cmd_ds_802_11_rf_channel cmd;
 932 #ifdef DEBUG
 933         u8 old_channel = priv->curbssparams.channel;
 934 #endif
 935         int ret = 0;
 936
 937         lbs_deb_enter(LBS_DEB_CMD);
 938
 939         memset(&cmd, 0, sizeof(cmd));
 940         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 941         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 942         cmd.channel = cpu_to_le16(channel);
 943
 944         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 945         if (ret)
 946                 goto out;
 947
 948         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 949         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 950                 priv->curbssparams.channel);
 951
 952 out:
 953         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 954         return ret;
 955 }
 956
 957 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 958                                 struct cmd_ds_command *cmd)
 959 {
 960
 961         lbs_deb_enter(LBS_DEB_CMD);
 962         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 963         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 964         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 965
 966         /* reset Beacon SNR/NF/RSSI values */
 967         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 968         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 969         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 970         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 971         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 972         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 973
 974         lbs_deb_leave(LBS_DEB_CMD);
 975         return 0;
 976 }
 977
 978 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 979                                u8 cmd_action, void *pdata_buf)
 980 {
 981         struct lbs_offset_value *offval;
 982
 983         lbs_deb_enter(LBS_DEB_CMD);
 984
 985         offval = (struct lbs_offset_value *)pdata_buf;
 986
 987         switch (le16_to_cpu(cmdptr->command)) {
 988         case CMD_MAC_REG_ACCESS:
 989                 {
 990                         struct cmd_ds_mac_reg_access *macreg;
 991
 992                         cmdptr->size =
 993                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 994                                         + S_DS_GEN);
 995                         macreg =
 996                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 997                             macreg;
 998
 999                         macreg->action = cpu_to_le16(cmd_action);
1000                         macreg->offset = cpu_to_le16((u16) offval->offset);
1001                         macreg->value = cpu_to_le32(offval->value);
1002
1003                         break;
1004                 }
1005
1006         case CMD_BBP_REG_ACCESS:
1007                 {
1008                         struct cmd_ds_bbp_reg_access *bbpreg;
1009
1010                         cmdptr->size =
1011                             cpu_to_le16(sizeof
1012                                              (struct cmd_ds_bbp_reg_access)
1013                                              + S_DS_GEN);
1014                         bbpreg =
1015                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
1016                             bbpreg;
1017
1018                         bbpreg->action = cpu_to_le16(cmd_action);
1019                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
1020                         bbpreg->value = (u8) offval->value;
1021
1022                         break;
1023                 }
1024
1025         case CMD_RF_REG_ACCESS:
1026                 {
1027                         struct cmd_ds_rf_reg_access *rfreg;
1028
1029                         cmdptr->size =
1030                             cpu_to_le16(sizeof
1031                                              (struct cmd_ds_rf_reg_access) +
1032                                              S_DS_GEN);
1033                         rfreg =
1034                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
1035                             rfreg;
1036
1037                         rfreg->action = cpu_to_le16(cmd_action);
1038                         rfreg->offset = cpu_to_le16((u16) offval->offset);
1039                         rfreg->value = (u8) offval->value;
1040
1041                         break;
1042                 }
1043
1044         default:
1045                 break;
1046         }
1047
1048         lbs_deb_leave(LBS_DEB_CMD);
1049         return 0;
1050 }
1051
1052 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
1053                                u16 cmd_action, void *pdata_buf)
1054 {
1055         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
1056         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1057
1058         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
1059         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
1060         cmd->result = 0;
1061         bt_access->action = cpu_to_le16(cmd_action);
1062
1063         switch (cmd_action) {
1064         case CMD_ACT_BT_ACCESS_ADD:
1065                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
1066                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
1067                 break;
1068         case CMD_ACT_BT_ACCESS_DEL:
1069                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
1070                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
1071                 break;
1072         case CMD_ACT_BT_ACCESS_LIST:
1073                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1074                 break;
1075         case CMD_ACT_BT_ACCESS_RESET:
1076                 break;
1077         case CMD_ACT_BT_ACCESS_SET_INVERT:
1078                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1079                 break;
1080         case CMD_ACT_BT_ACCESS_GET_INVERT:
1081                 break;
1082         default:
1083                 break;
1084         }
1085         lbs_deb_leave(LBS_DEB_CMD);
1086         return 0;
1087 }
1088
1089 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1090                                u16 cmd_action, void *pdata_buf)
1091 {
1092         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1093         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1094
1095         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1096         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1097         cmd->result = 0;
1098
1099         if (pdata_buf)
1100                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1101         else
1102                 memset(fwt_access, 0, sizeof(*fwt_access));
1103
1104         fwt_access->action = cpu_to_le16(cmd_action);
1105
1106         lbs_deb_leave(LBS_DEB_CMD);
1107         return 0;
1108 }
1109
1110 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1111                     struct cmd_ds_mesh_access *cmd)
1112 {
1113         int ret;
1114
1115         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1116
1117         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1118         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1119         cmd->hdr.result = 0;
1120
1121         cmd->action = cpu_to_le16(cmd_action);
1122
1123         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1124
1125         lbs_deb_leave(LBS_DEB_CMD);
1126         return ret;
1127 }
1128
1129 static int __lbs_mesh_config_send(struct lbs_private *priv,
1130                                   struct cmd_ds_mesh_config *cmd,
1131                                   uint16_t action, uint16_t type)
1132 {
1133         int ret;
1134         u16 command = CMD_MESH_CONFIG_OLD;
1135
1136         lbs_deb_enter(LBS_DEB_CMD);
1137
1138         /*
1139          * Command id is 0xac for v10 FW along with mesh interface
1140          * id in bits 14-13-12.
1141          */
1142         if (priv->mesh_fw_ver == MESH_FW_NEW)
1143                 command = CMD_MESH_CONFIG |
1144                           (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
1145
1146         cmd->hdr.command = cpu_to_le16(command);
1147         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1148         cmd->hdr.result = 0;
1149
1150         cmd->type = cpu_to_le16(type);
1151         cmd->action = cpu_to_le16(action);
1152
1153         ret = lbs_cmd_with_response(priv, command, cmd);
1154
1155         lbs_deb_leave(LBS_DEB_CMD);
1156         return ret;
1157 }
1158
1159 int lbs_mesh_config_send(struct lbs_private *priv,
1160                          struct cmd_ds_mesh_config *cmd,
1161                          uint16_t action, uint16_t type)
1162 {
1163         int ret;
1164
1165         if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1166                 return -EOPNOTSUPP;
1167
1168         ret = __lbs_mesh_config_send(priv, cmd, action, type);
1169         return ret;
1170 }
1171
1172 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
1173  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
1174  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1175  * lbs_mesh_config_send.
1176  */
1177 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1178 {
1179         struct cmd_ds_mesh_config cmd;
1180         struct mrvl_meshie *ie;
1181         DECLARE_SSID_BUF(ssid);
1182
1183         memset(&cmd, 0, sizeof(cmd));
1184         cmd.channel = cpu_to_le16(chan);
1185         ie = (struct mrvl_meshie *)cmd.data;
1186
1187         switch (action) {
1188         case CMD_ACT_MESH_CONFIG_START:
1189                 ie->id = WLAN_EID_GENERIC;
1190                 ie->val.oui[0] = 0x00;
1191                 ie->val.oui[1] = 0x50;
1192                 ie->val.oui[2] = 0x43;
1193                 ie->val.type = MARVELL_MESH_IE_TYPE;
1194                 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1195                 ie->val.version = MARVELL_MESH_IE_VERSION;
1196                 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1197                 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1198                 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1199                 ie->val.mesh_id_len = priv->mesh_ssid_len;
1200                 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1201                 ie->len = sizeof(struct mrvl_meshie_val) -
1202                         IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1203                 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1204                 break;
1205         case CMD_ACT_MESH_CONFIG_STOP:
1206                 break;
1207         default:
1208                 return -1;
1209         }
1210         lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1211                     action, priv->mesh_tlv, chan,
1212                     print_ssid(ssid, priv->mesh_ssid, priv->mesh_ssid_len));
1213
1214         return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1215 }
1216
1217 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1218                                 struct cmd_ds_command *cmd,
1219                                 u16 cmd_action)
1220 {
1221         struct cmd_ds_802_11_beacon_control
1222                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1223
1224         lbs_deb_enter(LBS_DEB_CMD);
1225         cmd->size =
1226             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1227                              + S_DS_GEN);
1228         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1229
1230         bcn_ctrl->action = cpu_to_le16(cmd_action);
1231         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1232         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1233
1234         lbs_deb_leave(LBS_DEB_CMD);
1235         return 0;
1236 }
1237
1238 static void lbs_queue_cmd(struct lbs_private *priv,
1239                           struct cmd_ctrl_node *cmdnode)
1240 {
1241         unsigned long flags;
1242         int addtail = 1;
1243
1244         lbs_deb_enter(LBS_DEB_HOST);
1245
1246         if (!cmdnode) {
1247                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1248                 goto done;
1249         }
1250         if (!cmdnode->cmdbuf->size) {
1251                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1252                 goto done;
1253         }
1254         cmdnode->result = 0;
1255
1256         /* Exit_PS command needs to be queued in the header always. */
1257         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1258                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1259
1260                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1261                         if (priv->psstate != PS_STATE_FULL_POWER)
1262                                 addtail = 0;
1263                 }
1264         }
1265
1266         spin_lock_irqsave(&priv->driver_lock, flags);
1267
1268         if (addtail)
1269                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1270         else
1271                 list_add(&cmdnode->list, &priv->cmdpendingq);
1272
1273         spin_unlock_irqrestore(&priv->driver_lock, flags);
1274
1275         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1276                      le16_to_cpu(cmdnode->cmdbuf->command));
1277
1278 done:
1279         lbs_deb_leave(LBS_DEB_HOST);
1280 }
1281
1282 static void lbs_submit_command(struct lbs_private *priv,
1283                                struct cmd_ctrl_node *cmdnode)
1284 {
1285         unsigned long flags;
1286         struct cmd_header *cmd;
1287         uint16_t cmdsize;
1288         uint16_t command;
1289         int timeo = 3 * HZ;
1290         int ret;
1291
1292         lbs_deb_enter(LBS_DEB_HOST);
1293
1294         cmd = cmdnode->cmdbuf;
1295
1296         spin_lock_irqsave(&priv->driver_lock, flags);
1297         priv->cur_cmd = cmdnode;
1298         priv->cur_cmd_retcode = 0;
1299         spin_unlock_irqrestore(&priv->driver_lock, flags);
1300
1301         cmdsize = le16_to_cpu(cmd->size);
1302         command = le16_to_cpu(cmd->command);
1303
1304         /* These commands take longer */
1305         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE)
1306                 timeo = 5 * HZ;
1307
1308         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1309                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1310         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1311
1312         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1313
1314         if (ret) {
1315                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1316                 /* Let the timer kick in and retry, and potentially reset
1317                    the whole thing if the condition persists */
1318                 timeo = HZ/4;
1319         }
1320
1321         if (command == CMD_802_11_DEEP_SLEEP) {
1322                 if (priv->is_auto_deep_sleep_enabled) {
1323                         priv->wakeup_dev_required = 1;
1324                         priv->dnld_sent = 0;
1325                 }
1326                 priv->is_deep_sleep = 1;
1327                 lbs_complete_command(priv, cmdnode, 0);
1328         } else {
1329                 /* Setup the timer after transmit command */
1330                 mod_timer(&priv->command_timer, jiffies + timeo);
1331         }
1332
1333         lbs_deb_leave(LBS_DEB_HOST);
1334 }
1335
1336 /**
1337  *  This function inserts command node to cmdfreeq
1338  *  after cleans it. Requires priv->driver_lock held.
1339  */
1340 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1341                                          struct cmd_ctrl_node *cmdnode)
1342 {
1343         lbs_deb_enter(LBS_DEB_HOST);
1344
1345         if (!cmdnode)
1346                 goto out;
1347
1348         cmdnode->callback = NULL;
1349         cmdnode->callback_arg = 0;
1350
1351         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1352
1353         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1354  out:
1355         lbs_deb_leave(LBS_DEB_HOST);
1356 }
1357
1358 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1359         struct cmd_ctrl_node *ptempcmd)
1360 {
1361         unsigned long flags;
1362
1363         spin_lock_irqsave(&priv->driver_lock, flags);
1364         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1365         spin_unlock_irqrestore(&priv->driver_lock, flags);
1366 }
1367
1368 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1369                           int result)
1370 {
1371         if (cmd == priv->cur_cmd)
1372                 priv->cur_cmd_retcode = result;
1373
1374         cmd->result = result;
1375         cmd->cmdwaitqwoken = 1;
1376         wake_up_interruptible(&cmd->cmdwait_q);
1377
1378         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1379                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1380         priv->cur_cmd = NULL;
1381 }
1382
1383 int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
1384 {
1385         struct cmd_ds_802_11_radio_control cmd;
1386         int ret = -EINVAL;
1387
1388         lbs_deb_enter(LBS_DEB_CMD);
1389
1390         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1391         cmd.action = cpu_to_le16(CMD_ACT_SET);
1392
1393         /* Only v8 and below support setting the preamble */
1394         if (priv->fwrelease < 0x09000000) {
1395                 switch (preamble) {
1396                 case RADIO_PREAMBLE_SHORT:
1397                         if (!(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
1398                                 goto out;
1399                         /* Fall through */
1400                 case RADIO_PREAMBLE_AUTO:
1401                 case RADIO_PREAMBLE_LONG:
1402                         cmd.control = cpu_to_le16(preamble);
1403                         break;
1404                 default:
1405                         goto out;
1406                 }
1407         }
1408
1409         if (radio_on)
1410                 cmd.control |= cpu_to_le16(0x1);
1411         else {
1412                 cmd.control &= cpu_to_le16(~0x1);
1413                 priv->txpower_cur = 0;
1414         }
1415
1416         lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1417                     radio_on ? "ON" : "OFF", preamble);
1418
1419         priv->radio_on = radio_on;
1420
1421         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1422
1423 out:
1424         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1425         return ret;
1426 }
1427
1428 void lbs_set_mac_control(struct lbs_private *priv)
1429 {
1430         struct cmd_ds_mac_control cmd;
1431
1432         lbs_deb_enter(LBS_DEB_CMD);
1433
1434         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1435         cmd.action = cpu_to_le16(priv->mac_control);
1436         cmd.reserved = 0;
1437
1438         lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1439
1440         lbs_deb_leave(LBS_DEB_CMD);
1441 }
1442
1443 /**
1444  *  @brief This function prepare the command before send to firmware.
1445  *
1446  *  @param priv         A pointer to struct lbs_private structure
1447  *  @param cmd_no       command number
1448  *  @param cmd_action   command action: GET or SET
1449  *  @param wait_option  wait option: wait response or not
1450  *  @param cmd_oid      cmd oid: treated as sub command
1451  *  @param pdata_buf    A pointer to informaion buffer
1452  *  @return             0 or -1
1453  */
1454 int lbs_prepare_and_send_command(struct lbs_private *priv,
1455                           u16 cmd_no,
1456                           u16 cmd_action,
1457                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1458 {
1459         int ret = 0;
1460         struct cmd_ctrl_node *cmdnode;
1461         struct cmd_ds_command *cmdptr;
1462         unsigned long flags;
1463
1464         lbs_deb_enter(LBS_DEB_HOST);
1465
1466         if (!priv) {
1467                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1468                 ret = -1;
1469                 goto done;
1470         }
1471
1472         if (priv->surpriseremoved) {
1473                 lbs_deb_host("PREP_CMD: card removed\n");
1474                 ret = -1;
1475                 goto done;
1476         }
1477
1478         if (!lbs_is_cmd_allowed(priv)) {
1479                 ret = -EBUSY;
1480                 goto done;
1481         }
1482
1483         cmdnode = lbs_get_cmd_ctrl_node(priv);
1484
1485         if (cmdnode == NULL) {
1486                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1487
1488                 /* Wake up main thread to execute next command */
1489                 wake_up_interruptible(&priv->waitq);
1490                 ret = -1;
1491                 goto done;
1492         }
1493
1494         cmdnode->callback = NULL;
1495         cmdnode->callback_arg = (unsigned long)pdata_buf;
1496
1497         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1498
1499         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1500
1501         /* Set sequence number, command and INT option */
1502         priv->seqnum++;
1503         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1504
1505         cmdptr->command = cpu_to_le16(cmd_no);
1506         cmdptr->result = 0;
1507
1508         switch (cmd_no) {
1509         case CMD_802_11_PS_MODE:
1510                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1511                 break;
1512
1513         case CMD_MAC_REG_ACCESS:
1514         case CMD_BBP_REG_ACCESS:
1515         case CMD_RF_REG_ACCESS:
1516                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1517                 break;
1518
1519         case CMD_802_11_MONITOR_MODE:
1520                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1521                                           cmd_action, pdata_buf);
1522                 break;
1523
1524         case CMD_802_11_RSSI:
1525                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1526                 break;
1527
1528         case CMD_802_11_SET_AFC:
1529         case CMD_802_11_GET_AFC:
1530
1531                 cmdptr->command = cpu_to_le16(cmd_no);
1532                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1533                                            S_DS_GEN);
1534
1535                 memmove(&cmdptr->params.afc,
1536                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1537
1538                 ret = 0;
1539                 goto done;
1540
1541         case CMD_802_11D_DOMAIN_INFO:
1542                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1543                                                    cmd_no, cmd_action);
1544                 break;
1545
1546         case CMD_802_11_TPC_CFG:
1547                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1548                 cmdptr->size =
1549                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1550                                      S_DS_GEN);
1551
1552                 memmove(&cmdptr->params.tpccfg,
1553                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1554
1555                 ret = 0;
1556                 break;
1557         case CMD_802_11_LED_GPIO_CTRL:
1558                 {
1559                         struct mrvl_ie_ledgpio *gpio =
1560                             (struct mrvl_ie_ledgpio*)
1561                             cmdptr->params.ledgpio.data;
1562
1563                         memmove(&cmdptr->params.ledgpio,
1564                                 pdata_buf,
1565                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1566
1567                         cmdptr->command =
1568                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1569
1570 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1571                         cmdptr->size =
1572                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1573                                 + S_DS_GEN
1574                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1575                         gpio->header.len = gpio->header.len;
1576
1577                         ret = 0;
1578                         break;
1579                 }
1580
1581         case CMD_BT_ACCESS:
1582                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1583                 break;
1584
1585         case CMD_FWT_ACCESS:
1586                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1587                 break;
1588
1589         case CMD_GET_TSF:
1590                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1591                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1592                                            S_DS_GEN);
1593                 ret = 0;
1594                 break;
1595         case CMD_802_11_BEACON_CTRL:
1596                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1597                 break;
1598         case CMD_802_11_DEEP_SLEEP:
1599                 cmdptr->command = cpu_to_le16(CMD_802_11_DEEP_SLEEP);
1600                 cmdptr->size = cpu_to_le16(S_DS_GEN);
1601                 break;
1602         default:
1603                 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1604                 ret = -1;
1605                 break;
1606         }
1607
1608         /* return error, since the command preparation failed */
1609         if (ret != 0) {
1610                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1611                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1612                 ret = -1;
1613                 goto done;
1614         }
1615
1616         cmdnode->cmdwaitqwoken = 0;
1617
1618         lbs_queue_cmd(priv, cmdnode);
1619         wake_up_interruptible(&priv->waitq);
1620
1621         if (wait_option & CMD_OPTION_WAITFORRSP) {
1622                 lbs_deb_host("PREP_CMD: wait for response\n");
1623                 might_sleep();
1624                 wait_event_interruptible(cmdnode->cmdwait_q,
1625                                          cmdnode->cmdwaitqwoken);
1626         }
1627
1628         spin_lock_irqsave(&priv->driver_lock, flags);
1629         if (priv->cur_cmd_retcode) {
1630                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1631                        priv->cur_cmd_retcode);
1632                 priv->cur_cmd_retcode = 0;
1633                 ret = -1;
1634         }
1635         spin_unlock_irqrestore(&priv->driver_lock, flags);
1636
1637 done:
1638         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1639         return ret;
1640 }
1641
1642 /**
1643  *  @brief This function allocates the command buffer and link
1644  *  it to command free queue.
1645  *
1646  *  @param priv         A pointer to struct lbs_private structure
1647  *  @return             0 or -1
1648  */
1649 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1650 {
1651         int ret = 0;
1652         u32 bufsize;
1653         u32 i;
1654         struct cmd_ctrl_node *cmdarray;
1655
1656         lbs_deb_enter(LBS_DEB_HOST);
1657
1658         /* Allocate and initialize the command array */
1659         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1660         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1661                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1662                 ret = -1;
1663                 goto done;
1664         }
1665         priv->cmd_array = cmdarray;
1666
1667         /* Allocate and initialize each command buffer in the command array */
1668         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1669                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1670                 if (!cmdarray[i].cmdbuf) {
1671                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1672                         ret = -1;
1673                         goto done;
1674                 }
1675         }
1676
1677         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1678                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1679                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1680         }
1681         ret = 0;
1682
1683 done:
1684         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1685         return ret;
1686 }
1687
1688 /**
1689  *  @brief This function frees the command buffer.
1690  *
1691  *  @param priv         A pointer to struct lbs_private structure
1692  *  @return             0 or -1
1693  */
1694 int lbs_free_cmd_buffer(struct lbs_private *priv)
1695 {
1696         struct cmd_ctrl_node *cmdarray;
1697         unsigned int i;
1698
1699         lbs_deb_enter(LBS_DEB_HOST);
1700
1701         /* need to check if cmd array is allocated or not */
1702         if (priv->cmd_array == NULL) {
1703                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1704                 goto done;
1705         }
1706
1707         cmdarray = priv->cmd_array;
1708
1709         /* Release shared memory buffers */
1710         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1711                 if (cmdarray[i].cmdbuf) {
1712                         kfree(cmdarray[i].cmdbuf);
1713                         cmdarray[i].cmdbuf = NULL;
1714                 }
1715         }
1716
1717         /* Release cmd_ctrl_node */
1718         if (priv->cmd_array) {
1719                 kfree(priv->cmd_array);
1720                 priv->cmd_array = NULL;
1721         }
1722
1723 done:
1724         lbs_deb_leave(LBS_DEB_HOST);
1725         return 0;
1726 }
1727
1728 /**
1729  *  @brief This function gets a free command node if available in
1730  *  command free queue.
1731  *
1732  *  @param priv         A pointer to struct lbs_private structure
1733  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1734  */
1735 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1736 {
1737         struct cmd_ctrl_node *tempnode;
1738         unsigned long flags;
1739
1740         lbs_deb_enter(LBS_DEB_HOST);
1741
1742         if (!priv)
1743                 return NULL;
1744
1745         spin_lock_irqsave(&priv->driver_lock, flags);
1746
1747         if (!list_empty(&priv->cmdfreeq)) {
1748                 tempnode = list_first_entry(&priv->cmdfreeq,
1749                                             struct cmd_ctrl_node, list);
1750                 list_del(&tempnode->list);
1751         } else {
1752                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1753                 tempnode = NULL;
1754         }
1755
1756         spin_unlock_irqrestore(&priv->driver_lock, flags);
1757
1758         lbs_deb_leave(LBS_DEB_HOST);
1759         return tempnode;
1760 }
1761
1762 /**
1763  *  @brief This function executes next command in command
1764  *  pending queue. It will put firmware back to PS mode
1765  *  if applicable.
1766  *
1767  *  @param priv     A pointer to struct lbs_private structure
1768  *  @return        0 or -1
1769  */
1770 int lbs_execute_next_command(struct lbs_private *priv)
1771 {
1772         struct cmd_ctrl_node *cmdnode = NULL;
1773         struct cmd_header *cmd;
1774         unsigned long flags;
1775         int ret = 0;
1776
1777         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1778          * only caller to us is lbs_thread() and we get even when a
1779          * data packet is received */
1780         lbs_deb_enter(LBS_DEB_THREAD);
1781
1782         spin_lock_irqsave(&priv->driver_lock, flags);
1783
1784         if (priv->cur_cmd) {
1785                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1786                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1787                 ret = -1;
1788                 goto done;
1789         }
1790
1791         if (!list_empty(&priv->cmdpendingq)) {
1792                 cmdnode = list_first_entry(&priv->cmdpendingq,
1793                                            struct cmd_ctrl_node, list);
1794         }
1795
1796         spin_unlock_irqrestore(&priv->driver_lock, flags);
1797
1798         if (cmdnode) {
1799                 cmd = cmdnode->cmdbuf;
1800
1801                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1802                         if ((priv->psstate == PS_STATE_SLEEP) ||
1803                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1804                                 lbs_deb_host(
1805                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1806                                        le16_to_cpu(cmd->command),
1807                                        priv->psstate);
1808                                 ret = -1;
1809                                 goto done;
1810                         }
1811                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1812                                      "0x%04x in psstate %d\n",
1813                                      le16_to_cpu(cmd->command), priv->psstate);
1814                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1815                         /*
1816                          * 1. Non-PS command:
1817                          * Queue it. set needtowakeup to TRUE if current state
1818                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1819                          * 2. PS command but not Exit_PS:
1820                          * Ignore it.
1821                          * 3. PS command Exit_PS:
1822                          * Set needtowakeup to TRUE if current state is SLEEP,
1823                          * otherwise send this command down to firmware
1824                          * immediately.
1825                          */
1826                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1827                                 /*  Prepare to send Exit PS,
1828                                  *  this non PS command will be sent later */
1829                                 if ((priv->psstate == PS_STATE_SLEEP)
1830                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1831                                     ) {
1832                                         /* w/ new scheme, it will not reach here.
1833                                            since it is blocked in main_thread. */
1834                                         priv->needtowakeup = 1;
1835                                 } else
1836                                         lbs_ps_wakeup(priv, 0);
1837
1838                                 ret = 0;
1839                                 goto done;
1840                         } else {
1841                                 /*
1842                                  * PS command. Ignore it if it is not Exit_PS.
1843                                  * otherwise send it down immediately.
1844                                  */
1845                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1846
1847                                 lbs_deb_host(
1848                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1849                                        psm->action);
1850                                 if (psm->action !=
1851                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1852                                         lbs_deb_host(
1853                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1854                                         list_del(&cmdnode->list);
1855                                         spin_lock_irqsave(&priv->driver_lock, flags);
1856                                         lbs_complete_command(priv, cmdnode, 0);
1857                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1858
1859                                         ret = 0;
1860                                         goto done;
1861                                 }
1862
1863                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1864                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1865                                         lbs_deb_host(
1866                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1867                                         list_del(&cmdnode->list);
1868                                         spin_lock_irqsave(&priv->driver_lock, flags);
1869                                         lbs_complete_command(priv, cmdnode, 0);
1870                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1871                                         priv->needtowakeup = 1;
1872
1873                                         ret = 0;
1874                                         goto done;
1875                                 }
1876
1877                                 lbs_deb_host(
1878                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1879                         }
1880                 }
1881                 list_del(&cmdnode->list);
1882                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1883                             le16_to_cpu(cmd->command));
1884                 lbs_submit_command(priv, cmdnode);
1885         } else {
1886                 /*
1887                  * check if in power save mode, if yes, put the device back
1888                  * to PS mode
1889                  */
1890                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1891                     (priv->psstate == PS_STATE_FULL_POWER) &&
1892                     ((priv->connect_status == LBS_CONNECTED) ||
1893                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1894                         if (priv->secinfo.WPAenabled ||
1895                             priv->secinfo.WPA2enabled) {
1896                                 /* check for valid WPA group keys */
1897                                 if (priv->wpa_mcast_key.len ||
1898                                     priv->wpa_unicast_key.len) {
1899                                         lbs_deb_host(
1900                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1901                                                " go back to PS_SLEEP");
1902                                         lbs_ps_sleep(priv, 0);
1903                                 }
1904                         } else {
1905                                 lbs_deb_host(
1906                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1907                                        "go back to PS_SLEEP");
1908                                 lbs_ps_sleep(priv, 0);
1909                         }
1910                 }
1911         }
1912
1913         ret = 0;
1914 done:
1915         lbs_deb_leave(LBS_DEB_THREAD);
1916         return ret;
1917 }
1918
1919 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1920 {
1921         union iwreq_data iwrq;
1922         u8 buf[50];
1923
1924         lbs_deb_enter(LBS_DEB_WEXT);
1925
1926         memset(&iwrq, 0, sizeof(union iwreq_data));
1927         memset(buf, 0, sizeof(buf));
1928
1929         snprintf(buf, sizeof(buf) - 1, "%s", str);
1930
1931         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1932
1933         /* Send Event to upper layer */
1934         lbs_deb_wext("event indication string %s\n", (char *)buf);
1935         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1936         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1937
1938         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1939
1940         lbs_deb_leave(LBS_DEB_WEXT);
1941 }
1942
1943 static void lbs_send_confirmsleep(struct lbs_private *priv)
1944 {
1945         unsigned long flags;
1946         int ret;
1947
1948         lbs_deb_enter(LBS_DEB_HOST);
1949         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1950                 sizeof(confirm_sleep));
1951
1952         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1953                 sizeof(confirm_sleep));
1954         if (ret) {
1955                 lbs_pr_alert("confirm_sleep failed\n");
1956                 goto out;
1957         }
1958
1959         spin_lock_irqsave(&priv->driver_lock, flags);
1960
1961         /* We don't get a response on the sleep-confirmation */
1962         priv->dnld_sent = DNLD_RES_RECEIVED;
1963
1964         /* If nothing to do, go back to sleep (?) */
1965         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1966                 priv->psstate = PS_STATE_SLEEP;
1967
1968         spin_unlock_irqrestore(&priv->driver_lock, flags);
1969
1970 out:
1971         lbs_deb_leave(LBS_DEB_HOST);
1972 }
1973
1974 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1975 {
1976         lbs_deb_enter(LBS_DEB_HOST);
1977
1978         /*
1979          * PS is currently supported only in Infrastructure mode
1980          * Remove this check if it is to be supported in IBSS mode also
1981          */
1982
1983         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1984                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1985
1986         lbs_deb_leave(LBS_DEB_HOST);
1987 }
1988
1989 /**
1990  *  @brief This function sends Exit_PS command to firmware.
1991  *
1992  *  @param priv         A pointer to struct lbs_private structure
1993  *  @param wait_option  wait response or not
1994  *  @return             n/a
1995  */
1996 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1997 {
1998         __le32 Localpsmode;
1999
2000         lbs_deb_enter(LBS_DEB_HOST);
2001
2002         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
2003
2004         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
2005                               CMD_SUBCMD_EXIT_PS,
2006                               wait_option, 0, &Localpsmode);
2007
2008         lbs_deb_leave(LBS_DEB_HOST);
2009 }
2010
2011 /**
2012  *  @brief This function checks condition and prepares to
2013  *  send sleep confirm command to firmware if ok.
2014  *
2015  *  @param priv         A pointer to struct lbs_private structure
2016  *  @param psmode       Power Saving mode
2017  *  @return             n/a
2018  */
2019 void lbs_ps_confirm_sleep(struct lbs_private *priv)
2020 {
2021         unsigned long flags =0;
2022         int allowed = 1;
2023
2024         lbs_deb_enter(LBS_DEB_HOST);
2025
2026         spin_lock_irqsave(&priv->driver_lock, flags);
2027         if (priv->dnld_sent) {
2028                 allowed = 0;
2029                 lbs_deb_host("dnld_sent was set\n");
2030         }
2031
2032         /* In-progress command? */
2033         if (priv->cur_cmd) {
2034                 allowed = 0;
2035                 lbs_deb_host("cur_cmd was set\n");
2036         }
2037
2038         /* Pending events or command responses? */
2039         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
2040                 allowed = 0;
2041                 lbs_deb_host("pending events or command responses\n");
2042         }
2043         spin_unlock_irqrestore(&priv->driver_lock, flags);
2044
2045         if (allowed) {
2046                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
2047                 lbs_send_confirmsleep(priv);
2048         } else {
2049                 lbs_deb_host("sleep confirm has been delayed\n");
2050         }
2051
2052         lbs_deb_leave(LBS_DEB_HOST);
2053 }
2054
2055
2056 /**
2057  * @brief Configures the transmission power control functionality.
2058  *
2059  * @param priv          A pointer to struct lbs_private structure
2060  * @param enable        Transmission power control enable
2061  * @param p0            Power level when link quality is good (dBm).
2062  * @param p1            Power level when link quality is fair (dBm).
2063  * @param p2            Power level when link quality is poor (dBm).
2064  * @param usesnr        Use Signal to Noise Ratio in TPC
2065  *
2066  * @return 0 on success
2067  */
2068 int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
2069                 int8_t p2, int usesnr)
2070 {
2071         struct cmd_ds_802_11_tpc_cfg cmd;
2072         int ret;
2073
2074         memset(&cmd, 0, sizeof(cmd));
2075         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2076         cmd.action = cpu_to_le16(CMD_ACT_SET);
2077         cmd.enable = !!enable;
2078         cmd.usesnr = !!usesnr;
2079         cmd.P0 = p0;
2080         cmd.P1 = p1;
2081         cmd.P2 = p2;
2082
2083         ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
2084
2085         return ret;
2086 }
2087
2088 /**
2089  * @brief Configures the power adaptation settings.
2090  *
2091  * @param priv          A pointer to struct lbs_private structure
2092  * @param enable        Power adaptation enable
2093  * @param p0            Power level for 1, 2, 5.5 and 11 Mbps (dBm).
2094  * @param p1            Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
2095  * @param p2            Power level for 48 and 54 Mbps (dBm).
2096  *
2097  * @return 0 on Success
2098  */
2099
2100 int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
2101                 int8_t p1, int8_t p2)
2102 {
2103         struct cmd_ds_802_11_pa_cfg cmd;
2104         int ret;
2105
2106         memset(&cmd, 0, sizeof(cmd));
2107         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2108         cmd.action = cpu_to_le16(CMD_ACT_SET);
2109         cmd.enable = !!enable;
2110         cmd.P0 = p0;
2111         cmd.P1 = p1;
2112         cmd.P2 = p2;
2113
2114         ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
2115
2116         return ret;
2117 }
2118
2119
2120 struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
2121         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
2122         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2123         unsigned long callback_arg)
2124 {
2125         struct cmd_ctrl_node *cmdnode;
2126
2127         lbs_deb_enter(LBS_DEB_HOST);
2128
2129         if (priv->surpriseremoved) {
2130                 lbs_deb_host("PREP_CMD: card removed\n");
2131                 cmdnode = ERR_PTR(-ENOENT);
2132                 goto done;
2133         }
2134
2135         if (!lbs_is_cmd_allowed(priv)) {
2136                 cmdnode = ERR_PTR(-EBUSY);
2137                 goto done;
2138         }
2139
2140         cmdnode = lbs_get_cmd_ctrl_node(priv);
2141         if (cmdnode == NULL) {
2142                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2143
2144                 /* Wake up main thread to execute next command */
2145                 wake_up_interruptible(&priv->waitq);
2146                 cmdnode = ERR_PTR(-ENOBUFS);
2147                 goto done;
2148         }
2149
2150         cmdnode->callback = callback;
2151         cmdnode->callback_arg = callback_arg;
2152
2153         /* Copy the incoming command to the buffer */
2154         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2155
2156         /* Set sequence number, clean result, move to buffer */
2157         priv->seqnum++;
2158         cmdnode->cmdbuf->command = cpu_to_le16(command);
2159         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2160         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2161         cmdnode->cmdbuf->result  = 0;
2162
2163         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2164
2165         cmdnode->cmdwaitqwoken = 0;
2166         lbs_queue_cmd(priv, cmdnode);
2167         wake_up_interruptible(&priv->waitq);
2168
2169  done:
2170         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2171         return cmdnode;
2172 }
2173
2174 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2175         struct cmd_header *in_cmd, int in_cmd_size)
2176 {
2177         lbs_deb_enter(LBS_DEB_CMD);
2178         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2179                 lbs_cmd_async_callback, 0);
2180         lbs_deb_leave(LBS_DEB_CMD);
2181 }
2182
2183 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2184               struct cmd_header *in_cmd, int in_cmd_size,
2185               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2186               unsigned long callback_arg)
2187 {
2188         struct cmd_ctrl_node *cmdnode;
2189         unsigned long flags;
2190         int ret = 0;
2191
2192         lbs_deb_enter(LBS_DEB_HOST);
2193
2194         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2195                                   callback, callback_arg);
2196         if (IS_ERR(cmdnode)) {
2197                 ret = PTR_ERR(cmdnode);
2198                 goto done;
2199         }
2200
2201         might_sleep();
2202         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2203
2204         spin_lock_irqsave(&priv->driver_lock, flags);
2205         ret = cmdnode->result;
2206         if (ret)
2207                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2208                             command, ret);
2209
2210         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2211         spin_unlock_irqrestore(&priv->driver_lock, flags);
2212
2213 done:
2214         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2215         return ret;
2216 }
2217 EXPORT_SYMBOL_GPL(__lbs_cmd);
2218
2219