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  *  @brief Simple callback that copies response back into command
  22  *
  23  *  @param priv         A pointer to struct lbs_private structure
  24  *  @param extra        A pointer to the original command structure for which
  25  *                      'resp' is a response
  26  *  @param resp         A pointer to the command response
  27  *
  28  *  @return             0 on success, error on failure
  29  */
  30 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
  31                      struct cmd_header *resp)
  32 {
  33         struct cmd_header *buf = (void *)extra;
  34         uint16_t copy_len;
  35
  36         copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
  37         memcpy(buf, resp, copy_len);
  38         return 0;
  39 }
  40 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
  41
  42 /**
  43  *  @brief Simple callback that ignores the result. Use this if
  44  *  you just want to send a command to the hardware, but don't
  45  *  care for the result.
  46  *
  47  *  @param priv         ignored
  48  *  @param extra        ignored
  49  *  @param resp         ignored
  50  *
  51  *  @return             0 for success
  52  */
  53 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
  54                      struct cmd_header *resp)
  55 {
  56         return 0;
  57 }
  58
  59
  60 /**
  61  *  @brief Checks whether a command is allowed in Power Save mode
  62  *
  63  *  @param command the command ID
  64  *  @return        1 if allowed, 0 if not allowed
  65  */
  66 static u8 is_command_allowed_in_ps(u16 cmd)
  67 {
  68         switch (cmd) {
  69         case CMD_802_11_RSSI:
  70                 return 1;
  71         default:
  72                 break;
  73         }
  74         return 0;
  75 }
  76
  77 /**
  78  *  @brief This function checks if the command is allowed.
  79  *
  80  *  @param priv         A pointer to lbs_private structure
  81  *  @return             allowed or not allowed.
  82  */
  83
  84 static int lbs_is_cmd_allowed(struct lbs_private *priv)
  85 {
  86         int ret = 1;
  87
  88         lbs_deb_enter(LBS_DEB_CMD);
  89
  90         if (!priv->is_auto_deep_sleep_enabled) {
  91                 if (priv->is_deep_sleep) {
  92                         lbs_deb_cmd("command not allowed in deep sleep\n");
  93                         ret = 0;
  94                 }
  95         }
  96
  97         lbs_deb_leave(LBS_DEB_CMD);
  98         return ret;
  99 }
 100
 101 /**
 102  *  @brief Updates the hardware details like MAC address and regulatory region
 103  *
 104  *  @param priv         A pointer to struct lbs_private structure
 105  *
 106  *  @return             0 on success, error on failure
 107  */
 108 int lbs_update_hw_spec(struct lbs_private *priv)
 109 {
 110         struct cmd_ds_get_hw_spec cmd;
 111         int ret = -1;
 112         u32 i;
 113
 114         lbs_deb_enter(LBS_DEB_CMD);
 115
 116         memset(&cmd, 0, sizeof(cmd));
 117         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 118         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
 119         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
 120         if (ret)
 121                 goto out;
 122
 123         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
 124
 125         /* The firmware release is in an interesting format: the patch
 126          * level is in the most significant nibble ... so fix that: */
 127         priv->fwrelease = le32_to_cpu(cmd.fwrelease);
 128         priv->fwrelease = (priv->fwrelease << 8) |
 129                 (priv->fwrelease >> 24 & 0xff);
 130
 131         /* Some firmware capabilities:
 132          * CF card    firmware 5.0.16p0:   cap 0x00000303
 133          * USB dongle firmware 5.110.17p2: cap 0x00000303
 134          */
 135         lbs_pr_info("%pM, fw %u.%u.%up%u, cap 0x%08x\n",
 136                 cmd.permanentaddr,
 137                 priv->fwrelease >> 24 & 0xff,
 138                 priv->fwrelease >> 16 & 0xff,
 139                 priv->fwrelease >>  8 & 0xff,
 140                 priv->fwrelease       & 0xff,
 141                 priv->fwcapinfo);
 142         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
 143                     cmd.hwifversion, cmd.version);
 144
 145         /* Determine mesh_fw_ver from fwrelease and fwcapinfo */
 146         /* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
 147         /* 5.110.22 have mesh command with 0xa3 command id */
 148         /* 10.0.0.p0 FW brings in mesh config command with different id */
 149         /* Check FW version MSB and initialize mesh_fw_ver */
 150         if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
 151                 priv->mesh_fw_ver = MESH_FW_OLD;
 152         else if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
 153                 (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK))
 154                 priv->mesh_fw_ver = MESH_FW_NEW;
 155         else
 156                 priv->mesh_fw_ver = MESH_NONE;
 157
 158         /* Clamp region code to 8-bit since FW spec indicates that it should
 159          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
 160          * returns non-zero high 8 bits here.
 161          *
 162          * Firmware version 4.0.102 used in CF8381 has region code shifted.  We
 163          * need to check for this problem and handle it properly.
 164          */
 165         if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V4)
 166                 priv->regioncode = (le16_to_cpu(cmd.regioncode) >> 8) & 0xFF;
 167         else
 168                 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
 169
 170         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 171                 /* use the region code to search for the index */
 172                 if (priv->regioncode == lbs_region_code_to_index[i])
 173                         break;
 174         }
 175
 176         /* if it's unidentified region code, use the default (USA) */
 177         if (i >= MRVDRV_MAX_REGION_CODE) {
 178                 priv->regioncode = 0x10;
 179                 lbs_pr_info("unidentified region code; using the default (USA)\n");
 180         }
 181
 182         if (priv->current_addr[0] == 0xff)
 183                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
 184
 185         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
 186         if (priv->mesh_dev)
 187                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 188
 189         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
 190                 ret = -1;
 191                 goto out;
 192         }
 193
 194         if (lbs_set_universaltable(priv, 0)) {
 195                 ret = -1;
 196                 goto out;
 197         }
 198
 199 out:
 200         lbs_deb_leave(LBS_DEB_CMD);
 201         return ret;
 202 }
 203
 204 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
 205                 struct wol_config *p_wol_config)
 206 {
 207         struct cmd_ds_host_sleep cmd_config;
 208         int ret;
 209
 210         cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
 211         cmd_config.criteria = cpu_to_le32(criteria);
 212         cmd_config.gpio = priv->wol_gpio;
 213         cmd_config.gap = priv->wol_gap;
 214
 215         if (p_wol_config != NULL)
 216                 memcpy((uint8_t *)&cmd_config.wol_conf, (uint8_t *)p_wol_config,
 217                                 sizeof(struct wol_config));
 218         else
 219                 cmd_config.wol_conf.action = CMD_ACT_ACTION_NONE;
 220
 221         ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
 222         if (!ret) {
 223                 if (criteria) {
 224                         lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
 225                         priv->wol_criteria = criteria;
 226                 } else
 227                         memcpy((uint8_t *) p_wol_config,
 228                                         (uint8_t *)&cmd_config.wol_conf,
 229                                         sizeof(struct wol_config));
 230         } else {
 231                 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
 232         }
 233
 234         return ret;
 235 }
 236 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
 237
 238 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
 239                                    u16 cmd_action)
 240 {
 241         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
 242
 243         lbs_deb_enter(LBS_DEB_CMD);
 244
 245         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
 246         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
 247                                 S_DS_GEN);
 248         psm->action = cpu_to_le16(cmd_action);
 249         psm->multipledtim = 0;
 250         switch (cmd_action) {
 251         case CMD_SUBCMD_ENTER_PS:
 252                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
 253
 254                 psm->locallisteninterval = 0;
 255                 psm->nullpktinterval = 0;
 256                 psm->multipledtim =
 257                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
 258                 break;
 259
 260         case CMD_SUBCMD_EXIT_PS:
 261                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
 262                 break;
 263
 264         case CMD_SUBCMD_SLEEP_CONFIRMED:
 265                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
 266                 break;
 267
 268         default:
 269                 break;
 270         }
 271
 272         lbs_deb_leave(LBS_DEB_CMD);
 273         return 0;
 274 }
 275
 276 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
 277                                       uint16_t cmd_action, uint16_t *timeout)
 278 {
 279         struct cmd_ds_802_11_inactivity_timeout cmd;
 280         int ret;
 281
 282         lbs_deb_enter(LBS_DEB_CMD);
 283
 284         cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
 285         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 286
 287         cmd.action = cpu_to_le16(cmd_action);
 288
 289         if (cmd_action == CMD_ACT_SET)
 290                 cmd.timeout = cpu_to_le16(*timeout);
 291         else
 292                 cmd.timeout = 0;
 293
 294         ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
 295
 296         if (!ret)
 297                 *timeout = le16_to_cpu(cmd.timeout);
 298
 299         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 300         return 0;
 301 }
 302
 303 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
 304                                 struct sleep_params *sp)
 305 {
 306         struct cmd_ds_802_11_sleep_params cmd;
 307         int ret;
 308
 309         lbs_deb_enter(LBS_DEB_CMD);
 310
 311         if (cmd_action == CMD_ACT_GET) {
 312                 memset(&cmd, 0, sizeof(cmd));
 313         } else {
 314                 cmd.error = cpu_to_le16(sp->sp_error);
 315                 cmd.offset = cpu_to_le16(sp->sp_offset);
 316                 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
 317                 cmd.calcontrol = sp->sp_calcontrol;
 318                 cmd.externalsleepclk = sp->sp_extsleepclk;
 319                 cmd.reserved = cpu_to_le16(sp->sp_reserved);
 320         }
 321         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 322         cmd.action = cpu_to_le16(cmd_action);
 323
 324         ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
 325
 326         if (!ret) {
 327                 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
 328                             "calcontrol 0x%x extsleepclk 0x%x\n",
 329                             le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
 330                             le16_to_cpu(cmd.stabletime), cmd.calcontrol,
 331                             cmd.externalsleepclk);
 332
 333                 sp->sp_error = le16_to_cpu(cmd.error);
 334                 sp->sp_offset = le16_to_cpu(cmd.offset);
 335                 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
 336                 sp->sp_calcontrol = cmd.calcontrol;
 337                 sp->sp_extsleepclk = cmd.externalsleepclk;
 338                 sp->sp_reserved = le16_to_cpu(cmd.reserved);
 339         }
 340
 341         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 342         return 0;
 343 }
 344
 345 static int lbs_wait_for_ds_awake(struct lbs_private *priv)
 346 {
 347         int ret = 0;
 348
 349         lbs_deb_enter(LBS_DEB_CMD);
 350
 351         if (priv->is_deep_sleep) {
 352                 if (!wait_event_interruptible_timeout(priv->ds_awake_q,
 353                                         !priv->is_deep_sleep, (10 * HZ))) {
 354                         lbs_pr_err("ds_awake_q: timer expired\n");
 355                         ret = -1;
 356                 }
 357         }
 358
 359         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 360         return ret;
 361 }
 362
 363 int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep)
 364 {
 365         int ret =  0;
 366
 367         lbs_deb_enter(LBS_DEB_CMD);
 368
 369         if (deep_sleep) {
 370                 if (priv->is_deep_sleep != 1) {
 371                         lbs_deb_cmd("deep sleep: sleep\n");
 372                         BUG_ON(!priv->enter_deep_sleep);
 373                         ret = priv->enter_deep_sleep(priv);
 374                         if (!ret) {
 375                                 netif_stop_queue(priv->dev);
 376                                 netif_carrier_off(priv->dev);
 377                         }
 378                 } else {
 379                         lbs_pr_err("deep sleep: already enabled\n");
 380                 }
 381         } else {
 382                 if (priv->is_deep_sleep) {
 383                         lbs_deb_cmd("deep sleep: wakeup\n");
 384                         BUG_ON(!priv->exit_deep_sleep);
 385                         ret = priv->exit_deep_sleep(priv);
 386                         if (!ret) {
 387                                 ret = lbs_wait_for_ds_awake(priv);
 388                                 if (ret)
 389                                         lbs_pr_err("deep sleep: wakeup"
 390                                                         "failed\n");
 391                         }
 392                 }
 393         }
 394
 395         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 396         return ret;
 397 }
 398
 399 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
 400                            struct assoc_request *assoc)
 401 {
 402         struct cmd_ds_802_11_set_wep cmd;
 403         int ret = 0;
 404
 405         lbs_deb_enter(LBS_DEB_CMD);
 406
 407         memset(&cmd, 0, sizeof(cmd));
 408         cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
 409         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 410
 411         cmd.action = cpu_to_le16(cmd_action);
 412
 413         if (cmd_action == CMD_ACT_ADD) {
 414                 int i;
 415
 416                 /* default tx key index */
 417                 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
 418                                            CMD_WEP_KEY_INDEX_MASK);
 419
 420                 /* Copy key types and material to host command structure */
 421                 for (i = 0; i < 4; i++) {
 422                         struct enc_key *pkey = &assoc->wep_keys[i];
 423
 424                         switch (pkey->len) {
 425                         case KEY_LEN_WEP_40:
 426                                 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
 427                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 428                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
 429                                 break;
 430                         case KEY_LEN_WEP_104:
 431                                 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
 432                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 433                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
 434                                 break;
 435                         case 0:
 436                                 break;
 437                         default:
 438                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
 439                                             i, pkey->len);
 440                                 ret = -1;
 441                                 goto done;
 442                                 break;
 443                         }
 444                 }
 445         } else if (cmd_action == CMD_ACT_REMOVE) {
 446                 /* ACT_REMOVE clears _all_ WEP keys */
 447
 448                 /* default tx key index */
 449                 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
 450                                            CMD_WEP_KEY_INDEX_MASK);
 451                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
 452         }
 453
 454         ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
 455 done:
 456         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 457         return ret;
 458 }
 459
 460 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
 461                               uint16_t *enable)
 462 {
 463         struct cmd_ds_802_11_enable_rsn cmd;
 464         int ret;
 465
 466         lbs_deb_enter(LBS_DEB_CMD);
 467
 468         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 469         cmd.action = cpu_to_le16(cmd_action);
 470
 471         if (cmd_action == CMD_ACT_GET)
 472                 cmd.enable = 0;
 473         else {
 474                 if (*enable)
 475                         cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
 476                 else
 477                         cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
 478                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
 479         }
 480
 481         ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
 482         if (!ret && cmd_action == CMD_ACT_GET)
 483                 *enable = le16_to_cpu(cmd.enable);
 484
 485         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 486         return ret;
 487 }
 488
 489 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
 490                             struct enc_key *key)
 491 {
 492         lbs_deb_enter(LBS_DEB_CMD);
 493
 494         if (key->flags & KEY_INFO_WPA_ENABLED)
 495                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
 496         if (key->flags & KEY_INFO_WPA_UNICAST)
 497                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
 498         if (key->flags & KEY_INFO_WPA_MCAST)
 499                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
 500
 501         keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
 502         keyparam->keytypeid = cpu_to_le16(key->type);
 503         keyparam->keylen = cpu_to_le16(key->len);
 504         memcpy(keyparam->key, key->key, key->len);
 505
 506         /* Length field doesn't include the {type,length} header */
 507         keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
 508         lbs_deb_leave(LBS_DEB_CMD);
 509 }
 510
 511 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
 512                                 struct assoc_request *assoc)
 513 {
 514         struct cmd_ds_802_11_key_material cmd;
 515         int ret = 0;
 516         int index = 0;
 517
 518         lbs_deb_enter(LBS_DEB_CMD);
 519
 520         cmd.action = cpu_to_le16(cmd_action);
 521         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 522
 523         if (cmd_action == CMD_ACT_GET) {
 524                 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
 525         } else {
 526                 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
 527
 528                 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
 529                         set_one_wpa_key(&cmd.keyParamSet[index],
 530                                         &assoc->wpa_unicast_key);
 531                         index++;
 532                 }
 533
 534                 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
 535                         set_one_wpa_key(&cmd.keyParamSet[index],
 536                                         &assoc->wpa_mcast_key);
 537                         index++;
 538                 }
 539
 540                 /* The common header and as many keys as we included */
 541                 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
 542                                                     keyParamSet[index]));
 543         }
 544         ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
 545         /* Copy the returned key to driver private data */
 546         if (!ret && cmd_action == CMD_ACT_GET) {
 547                 void *buf_ptr = cmd.keyParamSet;
 548                 void *resp_end = &(&cmd)[1];
 549
 550                 while (buf_ptr < resp_end) {
 551                         struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
 552                         struct enc_key *key;
 553                         uint16_t param_set_len = le16_to_cpu(keyparam->length);
 554                         uint16_t key_len = le16_to_cpu(keyparam->keylen);
 555                         uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
 556                         uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
 557                         void *end;
 558
 559                         end = (void *)keyparam + sizeof(keyparam->type)
 560                                 + sizeof(keyparam->length) + param_set_len;
 561
 562                         /* Make sure we don't access past the end of the IEs */
 563                         if (end > resp_end)
 564                                 break;
 565
 566                         if (key_flags & KEY_INFO_WPA_UNICAST)
 567                                 key = &priv->wpa_unicast_key;
 568                         else if (key_flags & KEY_INFO_WPA_MCAST)
 569                                 key = &priv->wpa_mcast_key;
 570                         else
 571                                 break;
 572
 573                         /* Copy returned key into driver */
 574                         memset(key, 0, sizeof(struct enc_key));
 575                         if (key_len > sizeof(key->key))
 576                                 break;
 577                         key->type = key_type;
 578                         key->flags = key_flags;
 579                         key->len = key_len;
 580                         memcpy(key->key, keyparam->key, key->len);
 581
 582                         buf_ptr = end + 1;
 583                 }
 584         }
 585
 586         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 587         return ret;
 588 }
 589
 590 /**
 591  *  @brief Set an SNMP MIB value
 592  *
 593  *  @param priv         A pointer to struct lbs_private structure
 594  *  @param oid          The OID to set in the firmware
 595  *  @param val          Value to set the OID to
 596  *
 597  *  @return             0 on success, error on failure
 598  */
 599 int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
 600 {
 601         struct cmd_ds_802_11_snmp_mib cmd;
 602         int ret;
 603
 604         lbs_deb_enter(LBS_DEB_CMD);
 605
 606         memset(&cmd, 0, sizeof (cmd));
 607         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 608         cmd.action = cpu_to_le16(CMD_ACT_SET);
 609         cmd.oid = cpu_to_le16((u16) oid);
 610
 611         switch (oid) {
 612         case SNMP_MIB_OID_BSS_TYPE:
 613                 cmd.bufsize = cpu_to_le16(sizeof(u8));
 614                 cmd.value[0] = (val == IW_MODE_ADHOC) ? 2 : 1;
 615                 break;
 616         case SNMP_MIB_OID_11D_ENABLE:
 617         case SNMP_MIB_OID_FRAG_THRESHOLD:
 618         case SNMP_MIB_OID_RTS_THRESHOLD:
 619         case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
 620         case SNMP_MIB_OID_LONG_RETRY_LIMIT:
 621                 cmd.bufsize = cpu_to_le16(sizeof(u16));
 622                 *((__le16 *)(&cmd.value)) = cpu_to_le16(val);
 623                 break;
 624         default:
 625                 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
 626                 ret = -EINVAL;
 627                 goto out;
 628         }
 629
 630         lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
 631                     le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
 632
 633         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 634
 635 out:
 636         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 637         return ret;
 638 }
 639
 640 /**
 641  *  @brief Get an SNMP MIB value
 642  *
 643  *  @param priv         A pointer to struct lbs_private structure
 644  *  @param oid          The OID to retrieve from the firmware
 645  *  @param out_val      Location for the returned value
 646  *
 647  *  @return             0 on success, error on failure
 648  */
 649 int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
 650 {
 651         struct cmd_ds_802_11_snmp_mib 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_GET);
 659         cmd.oid = cpu_to_le16(oid);
 660
 661         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 662         if (ret)
 663                 goto out;
 664
 665         switch (le16_to_cpu(cmd.bufsize)) {
 666         case sizeof(u8):
 667                 if (oid == SNMP_MIB_OID_BSS_TYPE) {
 668                         if (cmd.value[0] == 2)
 669                                 *out_val = IW_MODE_ADHOC;
 670                         else
 671                                 *out_val = IW_MODE_INFRA;
 672                 } else
 673                         *out_val = cmd.value[0];
 674                 break;
 675         case sizeof(u16):
 676                 *out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
 677                 break;
 678         default:
 679                 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
 680                             oid, le16_to_cpu(cmd.bufsize));
 681                 break;
 682         }
 683
 684 out:
 685         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 686         return ret;
 687 }
 688
 689 /**
 690  *  @brief Get the min, max, and current TX power
 691  *
 692  *  @param priv         A pointer to struct lbs_private structure
 693  *  @param curlevel     Current power level in dBm
 694  *  @param minlevel     Minimum supported power level in dBm (optional)
 695  *  @param maxlevel     Maximum supported power level in dBm (optional)
 696  *
 697  *  @return             0 on success, error on failure
 698  */
 699 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
 700                      s16 *maxlevel)
 701 {
 702         struct cmd_ds_802_11_rf_tx_power cmd;
 703         int ret;
 704
 705         lbs_deb_enter(LBS_DEB_CMD);
 706
 707         memset(&cmd, 0, sizeof(cmd));
 708         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 709         cmd.action = cpu_to_le16(CMD_ACT_GET);
 710
 711         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 712         if (ret == 0) {
 713                 *curlevel = le16_to_cpu(cmd.curlevel);
 714                 if (minlevel)
 715                         *minlevel = cmd.minlevel;
 716                 if (maxlevel)
 717                         *maxlevel = cmd.maxlevel;
 718         }
 719
 720         lbs_deb_leave(LBS_DEB_CMD);
 721         return ret;
 722 }
 723
 724 /**
 725  *  @brief Set the TX power
 726  *
 727  *  @param priv         A pointer to struct lbs_private structure
 728  *  @param dbm          The desired power level in dBm
 729  *
 730  *  @return             0 on success, error on failure
 731  */
 732 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
 733 {
 734         struct cmd_ds_802_11_rf_tx_power cmd;
 735         int ret;
 736
 737         lbs_deb_enter(LBS_DEB_CMD);
 738
 739         memset(&cmd, 0, sizeof(cmd));
 740         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 741         cmd.action = cpu_to_le16(CMD_ACT_SET);
 742         cmd.curlevel = cpu_to_le16(dbm);
 743
 744         lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
 745
 746         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 747
 748         lbs_deb_leave(LBS_DEB_CMD);
 749         return ret;
 750 }
 751
 752 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 753                                       u16 cmd_action, void *pdata_buf)
 754 {
 755         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 756
 757         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 758         cmd->size =
 759             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 760                              S_DS_GEN);
 761
 762         monitor->action = cpu_to_le16(cmd_action);
 763         if (cmd_action == CMD_ACT_SET) {
 764                 monitor->mode =
 765                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 766         }
 767
 768         return 0;
 769 }
 770
 771 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
 772 {
 773 /*              Bit     Rate
 774 *               15:13 Reserved
 775 *               12    54 Mbps
 776 *               11    48 Mbps
 777 *               10    36 Mbps
 778 *               9     24 Mbps
 779 *               8     18 Mbps
 780 *               7     12 Mbps
 781 *               6     9 Mbps
 782 *               5     6 Mbps
 783 *               4     Reserved
 784 *               3     11 Mbps
 785 *               2     5.5 Mbps
 786 *               1     2 Mbps
 787 *               0     1 Mbps
 788 **/
 789
 790         uint16_t ratemask;
 791         int i = lbs_data_rate_to_fw_index(rate);
 792         if (lower_rates_ok)
 793                 ratemask = (0x1fef >> (12 - i));
 794         else
 795                 ratemask = (1 << i);
 796         return cpu_to_le16(ratemask);
 797 }
 798
 799 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 800                                       uint16_t cmd_action)
 801 {
 802         struct cmd_ds_802_11_rate_adapt_rateset cmd;
 803         int ret;
 804
 805         lbs_deb_enter(LBS_DEB_CMD);
 806
 807         if (!priv->cur_rate && !priv->enablehwauto)
 808                 return -EINVAL;
 809
 810         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 811
 812         cmd.action = cpu_to_le16(cmd_action);
 813         cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
 814         cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
 815         ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
 816         if (!ret && cmd_action == CMD_ACT_GET) {
 817                 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
 818                 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
 819         }
 820
 821         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 822         return ret;
 823 }
 824 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
 825
 826 /**
 827  *  @brief Set the data rate
 828  *
 829  *  @param priv         A pointer to struct lbs_private structure
 830  *  @param rate         The desired data rate, or 0 to clear a locked rate
 831  *
 832  *  @return             0 on success, error on failure
 833  */
 834 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 835 {
 836         struct cmd_ds_802_11_data_rate cmd;
 837         int ret = 0;
 838
 839         lbs_deb_enter(LBS_DEB_CMD);
 840
 841         memset(&cmd, 0, sizeof(cmd));
 842         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 843
 844         if (rate > 0) {
 845                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 846                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 847                 if (cmd.rates[0] == 0) {
 848                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 849                                     " 0x%02X\n", rate);
 850                         ret = 0;
 851                         goto out;
 852                 }
 853                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 854         } else {
 855                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 856                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 857         }
 858
 859         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 860         if (ret)
 861                 goto out;
 862
 863         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 864
 865         /* FIXME: get actual rates FW can do if this command actually returns
 866          * all data rates supported.
 867          */
 868         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 869         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 870
 871 out:
 872         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 873         return ret;
 874 }
 875
 876 /**
 877  *  @brief Get the radio channel
 878  *
 879  *  @param priv         A pointer to struct lbs_private structure
 880  *
 881  *  @return             The channel on success, error on failure
 882  */
 883 int lbs_get_channel(struct lbs_private *priv)
 884 {
 885         struct cmd_ds_802_11_rf_channel cmd;
 886         int ret = 0;
 887
 888         lbs_deb_enter(LBS_DEB_CMD);
 889
 890         memset(&cmd, 0, sizeof(cmd));
 891         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 892         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 893
 894         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 895         if (ret)
 896                 goto out;
 897
 898         ret = le16_to_cpu(cmd.channel);
 899         lbs_deb_cmd("current radio channel is %d\n", ret);
 900
 901 out:
 902         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 903         return ret;
 904 }
 905
 906 int lbs_update_channel(struct lbs_private *priv)
 907 {
 908         int ret;
 909
 910         /* the channel in f/w could be out of sync; get the current channel */
 911         lbs_deb_enter(LBS_DEB_ASSOC);
 912
 913         ret = lbs_get_channel(priv);
 914         if (ret > 0) {
 915                 priv->curbssparams.channel = ret;
 916                 ret = 0;
 917         }
 918         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 919         return ret;
 920 }
 921
 922 /**
 923  *  @brief Set the radio channel
 924  *
 925  *  @param priv         A pointer to struct lbs_private structure
 926  *  @param channel      The desired channel, or 0 to clear a locked channel
 927  *
 928  *  @return             0 on success, error on failure
 929  */
 930 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 931 {
 932         struct cmd_ds_802_11_rf_channel cmd;
 933 #ifdef DEBUG
 934         u8 old_channel = priv->curbssparams.channel;
 935 #endif
 936         int ret = 0;
 937
 938         lbs_deb_enter(LBS_DEB_CMD);
 939
 940         memset(&cmd, 0, sizeof(cmd));
 941         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 942         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 943         cmd.channel = cpu_to_le16(channel);
 944
 945         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 946         if (ret)
 947                 goto out;
 948
 949         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 950         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 951                 priv->curbssparams.channel);
 952
 953 out:
 954         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 955         return ret;
 956 }
 957
 958 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 959                                 struct cmd_ds_command *cmd)
 960 {
 961
 962         lbs_deb_enter(LBS_DEB_CMD);
 963         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 964         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 965         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 966
 967         /* reset Beacon SNR/NF/RSSI values */
 968         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 969         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 970         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 971         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 972         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 973         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 974
 975         lbs_deb_leave(LBS_DEB_CMD);
 976         return 0;
 977 }
 978
 979 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 980                                u8 cmd_action, void *pdata_buf)
 981 {
 982         struct lbs_offset_value *offval;
 983
 984         lbs_deb_enter(LBS_DEB_CMD);
 985
 986         offval = (struct lbs_offset_value *)pdata_buf;
 987
 988         switch (le16_to_cpu(cmdptr->command)) {
 989         case CMD_MAC_REG_ACCESS:
 990                 {
 991                         struct cmd_ds_mac_reg_access *macreg;
 992
 993                         cmdptr->size =
 994                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 995                                         + S_DS_GEN);
 996                         macreg =
 997                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 998                             macreg;
 999
1000                         macreg->action = cpu_to_le16(cmd_action);
1001                         macreg->offset = cpu_to_le16((u16) offval->offset);
1002                         macreg->value = cpu_to_le32(offval->value);
1003
1004                         break;
1005                 }
1006
1007         case CMD_BBP_REG_ACCESS:
1008                 {
1009                         struct cmd_ds_bbp_reg_access *bbpreg;
1010
1011                         cmdptr->size =
1012                             cpu_to_le16(sizeof
1013                                              (struct cmd_ds_bbp_reg_access)
1014                                              + S_DS_GEN);
1015                         bbpreg =
1016                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
1017                             bbpreg;
1018
1019                         bbpreg->action = cpu_to_le16(cmd_action);
1020                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
1021                         bbpreg->value = (u8) offval->value;
1022
1023                         break;
1024                 }
1025
1026         case CMD_RF_REG_ACCESS:
1027                 {
1028                         struct cmd_ds_rf_reg_access *rfreg;
1029
1030                         cmdptr->size =
1031                             cpu_to_le16(sizeof
1032                                              (struct cmd_ds_rf_reg_access) +
1033                                              S_DS_GEN);
1034                         rfreg =
1035                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
1036                             rfreg;
1037
1038                         rfreg->action = cpu_to_le16(cmd_action);
1039                         rfreg->offset = cpu_to_le16((u16) offval->offset);
1040                         rfreg->value = (u8) offval->value;
1041
1042                         break;
1043                 }
1044
1045         default:
1046                 break;
1047         }
1048
1049         lbs_deb_leave(LBS_DEB_CMD);
1050         return 0;
1051 }
1052
1053 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
1054                                u16 cmd_action, void *pdata_buf)
1055 {
1056         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
1057         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1058
1059         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
1060         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
1061         cmd->result = 0;
1062         bt_access->action = cpu_to_le16(cmd_action);
1063
1064         switch (cmd_action) {
1065         case CMD_ACT_BT_ACCESS_ADD:
1066                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
1067                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
1068                 break;
1069         case CMD_ACT_BT_ACCESS_DEL:
1070                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
1071                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
1072                 break;
1073         case CMD_ACT_BT_ACCESS_LIST:
1074                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1075                 break;
1076         case CMD_ACT_BT_ACCESS_RESET:
1077                 break;
1078         case CMD_ACT_BT_ACCESS_SET_INVERT:
1079                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1080                 break;
1081         case CMD_ACT_BT_ACCESS_GET_INVERT:
1082                 break;
1083         default:
1084                 break;
1085         }
1086         lbs_deb_leave(LBS_DEB_CMD);
1087         return 0;
1088 }
1089
1090 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1091                                u16 cmd_action, void *pdata_buf)
1092 {
1093         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1094         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1095
1096         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1097         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1098         cmd->result = 0;
1099
1100         if (pdata_buf)
1101                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1102         else
1103                 memset(fwt_access, 0, sizeof(*fwt_access));
1104
1105         fwt_access->action = cpu_to_le16(cmd_action);
1106
1107         lbs_deb_leave(LBS_DEB_CMD);
1108         return 0;
1109 }
1110
1111 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1112                     struct cmd_ds_mesh_access *cmd)
1113 {
1114         int ret;
1115
1116         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1117
1118         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1119         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1120         cmd->hdr.result = 0;
1121
1122         cmd->action = cpu_to_le16(cmd_action);
1123
1124         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1125
1126         lbs_deb_leave(LBS_DEB_CMD);
1127         return ret;
1128 }
1129
1130 static int __lbs_mesh_config_send(struct lbs_private *priv,
1131                                   struct cmd_ds_mesh_config *cmd,
1132                                   uint16_t action, uint16_t type)
1133 {
1134         int ret;
1135         u16 command = CMD_MESH_CONFIG_OLD;
1136
1137         lbs_deb_enter(LBS_DEB_CMD);
1138
1139         /*
1140          * Command id is 0xac for v10 FW along with mesh interface
1141          * id in bits 14-13-12.
1142          */
1143         if (priv->mesh_fw_ver == MESH_FW_NEW)
1144                 command = CMD_MESH_CONFIG |
1145                           (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
1146
1147         cmd->hdr.command = cpu_to_le16(command);
1148         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1149         cmd->hdr.result = 0;
1150
1151         cmd->type = cpu_to_le16(type);
1152         cmd->action = cpu_to_le16(action);
1153
1154         ret = lbs_cmd_with_response(priv, command, cmd);
1155
1156         lbs_deb_leave(LBS_DEB_CMD);
1157         return ret;
1158 }
1159
1160 int lbs_mesh_config_send(struct lbs_private *priv,
1161                          struct cmd_ds_mesh_config *cmd,
1162                          uint16_t action, uint16_t type)
1163 {
1164         int ret;
1165
1166         if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1167                 return -EOPNOTSUPP;
1168
1169         ret = __lbs_mesh_config_send(priv, cmd, action, type);
1170         return ret;
1171 }
1172
1173 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
1174  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
1175  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1176  * lbs_mesh_config_send.
1177  */
1178 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1179 {
1180         struct cmd_ds_mesh_config cmd;
1181         struct mrvl_meshie *ie;
1182         DECLARE_SSID_BUF(ssid);
1183
1184         memset(&cmd, 0, sizeof(cmd));
1185         cmd.channel = cpu_to_le16(chan);
1186         ie = (struct mrvl_meshie *)cmd.data;
1187
1188         switch (action) {
1189         case CMD_ACT_MESH_CONFIG_START:
1190                 ie->id = WLAN_EID_GENERIC;
1191                 ie->val.oui[0] = 0x00;
1192                 ie->val.oui[1] = 0x50;
1193                 ie->val.oui[2] = 0x43;
1194                 ie->val.type = MARVELL_MESH_IE_TYPE;
1195                 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1196                 ie->val.version = MARVELL_MESH_IE_VERSION;
1197                 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1198                 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1199                 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1200                 ie->val.mesh_id_len = priv->mesh_ssid_len;
1201                 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1202                 ie->len = sizeof(struct mrvl_meshie_val) -
1203                         IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1204                 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1205                 break;
1206         case CMD_ACT_MESH_CONFIG_STOP:
1207                 break;
1208         default:
1209                 return -1;
1210         }
1211         lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1212                     action, priv->mesh_tlv, chan,
1213                     print_ssid(ssid, priv->mesh_ssid, priv->mesh_ssid_len));
1214
1215         return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1216 }
1217
1218 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1219                                 struct cmd_ds_command *cmd,
1220                                 u16 cmd_action)
1221 {
1222         struct cmd_ds_802_11_beacon_control
1223                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1224
1225         lbs_deb_enter(LBS_DEB_CMD);
1226         cmd->size =
1227             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1228                              + S_DS_GEN);
1229         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1230
1231         bcn_ctrl->action = cpu_to_le16(cmd_action);
1232         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1233         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1234
1235         lbs_deb_leave(LBS_DEB_CMD);
1236         return 0;
1237 }
1238
1239 static void lbs_queue_cmd(struct lbs_private *priv,
1240                           struct cmd_ctrl_node *cmdnode)
1241 {
1242         unsigned long flags;
1243         int addtail = 1;
1244
1245         lbs_deb_enter(LBS_DEB_HOST);
1246
1247         if (!cmdnode) {
1248                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1249                 goto done;
1250         }
1251         if (!cmdnode->cmdbuf->size) {
1252                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1253                 goto done;
1254         }
1255         cmdnode->result = 0;
1256
1257         /* Exit_PS command needs to be queued in the header always. */
1258         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1259                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1260
1261                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1262                         if (priv->psstate != PS_STATE_FULL_POWER)
1263                                 addtail = 0;
1264                 }
1265         }
1266
1267         spin_lock_irqsave(&priv->driver_lock, flags);
1268
1269         if (addtail)
1270                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1271         else
1272                 list_add(&cmdnode->list, &priv->cmdpendingq);
1273
1274         spin_unlock_irqrestore(&priv->driver_lock, flags);
1275
1276         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1277                      le16_to_cpu(cmdnode->cmdbuf->command));
1278
1279 done:
1280         lbs_deb_leave(LBS_DEB_HOST);
1281 }
1282
1283 static void lbs_submit_command(struct lbs_private *priv,
1284                                struct cmd_ctrl_node *cmdnode)
1285 {
1286         unsigned long flags;
1287         struct cmd_header *cmd;
1288         uint16_t cmdsize;
1289         uint16_t command;
1290         int timeo = 3 * HZ;
1291         int ret;
1292
1293         lbs_deb_enter(LBS_DEB_HOST);
1294
1295         cmd = cmdnode->cmdbuf;
1296
1297         spin_lock_irqsave(&priv->driver_lock, flags);
1298         priv->cur_cmd = cmdnode;
1299         priv->cur_cmd_retcode = 0;
1300         spin_unlock_irqrestore(&priv->driver_lock, flags);
1301
1302         cmdsize = le16_to_cpu(cmd->size);
1303         command = le16_to_cpu(cmd->command);
1304
1305         /* These commands take longer */
1306         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE)
1307                 timeo = 5 * HZ;
1308
1309         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1310                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1311         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1312
1313         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1314
1315         if (ret) {
1316                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1317                 /* Let the timer kick in and retry, and potentially reset
1318                    the whole thing if the condition persists */
1319                 timeo = HZ/4;
1320         }
1321
1322         if (command == CMD_802_11_DEEP_SLEEP) {
1323                 if (priv->is_auto_deep_sleep_enabled) {
1324                         priv->wakeup_dev_required = 1;
1325                         priv->dnld_sent = 0;
1326                 }
1327                 priv->is_deep_sleep = 1;
1328                 lbs_complete_command(priv, cmdnode, 0);
1329         } else {
1330                 /* Setup the timer after transmit command */
1331                 mod_timer(&priv->command_timer, jiffies + timeo);
1332         }
1333
1334         lbs_deb_leave(LBS_DEB_HOST);
1335 }
1336
1337 /**
1338  *  This function inserts command node to cmdfreeq
1339  *  after cleans it. Requires priv->driver_lock held.
1340  */
1341 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1342                                          struct cmd_ctrl_node *cmdnode)
1343 {
1344         lbs_deb_enter(LBS_DEB_HOST);
1345
1346         if (!cmdnode)
1347                 goto out;
1348
1349         cmdnode->callback = NULL;
1350         cmdnode->callback_arg = 0;
1351
1352         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1353
1354         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1355  out:
1356         lbs_deb_leave(LBS_DEB_HOST);
1357 }
1358
1359 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1360         struct cmd_ctrl_node *ptempcmd)
1361 {
1362         unsigned long flags;
1363
1364         spin_lock_irqsave(&priv->driver_lock, flags);
1365         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1366         spin_unlock_irqrestore(&priv->driver_lock, flags);
1367 }
1368
1369 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1370                           int result)
1371 {
1372         if (cmd == priv->cur_cmd)
1373                 priv->cur_cmd_retcode = result;
1374
1375         cmd->result = result;
1376         cmd->cmdwaitqwoken = 1;
1377         wake_up_interruptible(&cmd->cmdwait_q);
1378
1379         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1380                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1381         priv->cur_cmd = NULL;
1382 }
1383
1384 int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
1385 {
1386         struct cmd_ds_802_11_radio_control cmd;
1387         int ret = -EINVAL;
1388
1389         lbs_deb_enter(LBS_DEB_CMD);
1390
1391         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1392         cmd.action = cpu_to_le16(CMD_ACT_SET);
1393
1394         /* Only v8 and below support setting the preamble */
1395         if (priv->fwrelease < 0x09000000) {
1396                 switch (preamble) {
1397                 case RADIO_PREAMBLE_SHORT:
1398                         if (!(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
1399                                 goto out;
1400                         /* Fall through */
1401                 case RADIO_PREAMBLE_AUTO:
1402                 case RADIO_PREAMBLE_LONG:
1403                         cmd.control = cpu_to_le16(preamble);
1404                         break;
1405                 default:
1406                         goto out;
1407                 }
1408         }
1409
1410         if (radio_on)
1411                 cmd.control |= cpu_to_le16(0x1);
1412         else {
1413                 cmd.control &= cpu_to_le16(~0x1);
1414                 priv->txpower_cur = 0;
1415         }
1416
1417         lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1418                     radio_on ? "ON" : "OFF", preamble);
1419
1420         priv->radio_on = radio_on;
1421
1422         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1423
1424 out:
1425         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1426         return ret;
1427 }
1428
1429 void lbs_set_mac_control(struct lbs_private *priv)
1430 {
1431         struct cmd_ds_mac_control cmd;
1432
1433         lbs_deb_enter(LBS_DEB_CMD);
1434
1435         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1436         cmd.action = cpu_to_le16(priv->mac_control);
1437         cmd.reserved = 0;
1438
1439         lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1440
1441         lbs_deb_leave(LBS_DEB_CMD);
1442 }
1443
1444 /**
1445  *  @brief This function prepare the command before send to firmware.
1446  *
1447  *  @param priv         A pointer to struct lbs_private structure
1448  *  @param cmd_no       command number
1449  *  @param cmd_action   command action: GET or SET
1450  *  @param wait_option  wait option: wait response or not
1451  *  @param cmd_oid      cmd oid: treated as sub command
1452  *  @param pdata_buf    A pointer to informaion buffer
1453  *  @return             0 or -1
1454  */
1455 int lbs_prepare_and_send_command(struct lbs_private *priv,
1456                           u16 cmd_no,
1457                           u16 cmd_action,
1458                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1459 {
1460         int ret = 0;
1461         struct cmd_ctrl_node *cmdnode;
1462         struct cmd_ds_command *cmdptr;
1463         unsigned long flags;
1464
1465         lbs_deb_enter(LBS_DEB_HOST);
1466
1467         if (!priv) {
1468                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1469                 ret = -1;
1470                 goto done;
1471         }
1472
1473         if (priv->surpriseremoved) {
1474                 lbs_deb_host("PREP_CMD: card removed\n");
1475                 ret = -1;
1476                 goto done;
1477         }
1478
1479         if (!lbs_is_cmd_allowed(priv)) {
1480                 ret = -EBUSY;
1481                 goto done;
1482         }
1483
1484         cmdnode = lbs_get_cmd_ctrl_node(priv);
1485
1486         if (cmdnode == NULL) {
1487                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1488
1489                 /* Wake up main thread to execute next command */
1490                 wake_up_interruptible(&priv->waitq);
1491                 ret = -1;
1492                 goto done;
1493         }
1494
1495         cmdnode->callback = NULL;
1496         cmdnode->callback_arg = (unsigned long)pdata_buf;
1497
1498         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1499
1500         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1501
1502         /* Set sequence number, command and INT option */
1503         priv->seqnum++;
1504         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1505
1506         cmdptr->command = cpu_to_le16(cmd_no);
1507         cmdptr->result = 0;
1508
1509         switch (cmd_no) {
1510         case CMD_802_11_PS_MODE:
1511                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1512                 break;
1513
1514         case CMD_MAC_REG_ACCESS:
1515         case CMD_BBP_REG_ACCESS:
1516         case CMD_RF_REG_ACCESS:
1517                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1518                 break;
1519
1520         case CMD_802_11_MONITOR_MODE:
1521                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1522                                           cmd_action, pdata_buf);
1523                 break;
1524
1525         case CMD_802_11_RSSI:
1526                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1527                 break;
1528
1529         case CMD_802_11_SET_AFC:
1530         case CMD_802_11_GET_AFC:
1531
1532                 cmdptr->command = cpu_to_le16(cmd_no);
1533                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1534                                            S_DS_GEN);
1535
1536                 memmove(&cmdptr->params.afc,
1537                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1538
1539                 ret = 0;
1540                 goto done;
1541
1542         case CMD_802_11D_DOMAIN_INFO:
1543                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1544                                                    cmd_no, cmd_action);
1545                 break;
1546
1547         case CMD_802_11_TPC_CFG:
1548                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1549                 cmdptr->size =
1550                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1551                                      S_DS_GEN);
1552
1553                 memmove(&cmdptr->params.tpccfg,
1554                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1555
1556                 ret = 0;
1557                 break;
1558         case CMD_802_11_LED_GPIO_CTRL:
1559                 {
1560                         struct mrvl_ie_ledgpio *gpio =
1561                             (struct mrvl_ie_ledgpio*)
1562                             cmdptr->params.ledgpio.data;
1563
1564                         memmove(&cmdptr->params.ledgpio,
1565                                 pdata_buf,
1566                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1567
1568                         cmdptr->command =
1569                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1570
1571 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1572                         cmdptr->size =
1573                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1574                                 + S_DS_GEN
1575                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1576                         gpio->header.len = gpio->header.len;
1577
1578                         ret = 0;
1579                         break;
1580                 }
1581
1582         case CMD_BT_ACCESS:
1583                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1584                 break;
1585
1586         case CMD_FWT_ACCESS:
1587                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1588                 break;
1589
1590         case CMD_GET_TSF:
1591                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1592                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1593                                            S_DS_GEN);
1594                 ret = 0;
1595                 break;
1596         case CMD_802_11_BEACON_CTRL:
1597                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1598                 break;
1599         case CMD_802_11_DEEP_SLEEP:
1600                 cmdptr->command = cpu_to_le16(CMD_802_11_DEEP_SLEEP);
1601                 cmdptr->size = cpu_to_le16(S_DS_GEN);
1602                 break;
1603         default:
1604                 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1605                 ret = -1;
1606                 break;
1607         }
1608
1609         /* return error, since the command preparation failed */
1610         if (ret != 0) {
1611                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1612                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1613                 ret = -1;
1614                 goto done;
1615         }
1616
1617         cmdnode->cmdwaitqwoken = 0;
1618
1619         lbs_queue_cmd(priv, cmdnode);
1620         wake_up_interruptible(&priv->waitq);
1621
1622         if (wait_option & CMD_OPTION_WAITFORRSP) {
1623                 lbs_deb_host("PREP_CMD: wait for response\n");
1624                 might_sleep();
1625                 wait_event_interruptible(cmdnode->cmdwait_q,
1626                                          cmdnode->cmdwaitqwoken);
1627         }
1628
1629         spin_lock_irqsave(&priv->driver_lock, flags);
1630         if (priv->cur_cmd_retcode) {
1631                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1632                        priv->cur_cmd_retcode);
1633                 priv->cur_cmd_retcode = 0;
1634                 ret = -1;
1635         }
1636         spin_unlock_irqrestore(&priv->driver_lock, flags);
1637
1638 done:
1639         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1640         return ret;
1641 }
1642
1643 /**
1644  *  @brief This function allocates the command buffer and link
1645  *  it to command free queue.
1646  *
1647  *  @param priv         A pointer to struct lbs_private structure
1648  *  @return             0 or -1
1649  */
1650 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1651 {
1652         int ret = 0;
1653         u32 bufsize;
1654         u32 i;
1655         struct cmd_ctrl_node *cmdarray;
1656
1657         lbs_deb_enter(LBS_DEB_HOST);
1658
1659         /* Allocate and initialize the command array */
1660         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1661         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1662                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1663                 ret = -1;
1664                 goto done;
1665         }
1666         priv->cmd_array = cmdarray;
1667
1668         /* Allocate and initialize each command buffer in the command array */
1669         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1670                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1671                 if (!cmdarray[i].cmdbuf) {
1672                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1673                         ret = -1;
1674                         goto done;
1675                 }
1676         }
1677
1678         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1679                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1680                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1681         }
1682         ret = 0;
1683
1684 done:
1685         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1686         return ret;
1687 }
1688
1689 /**
1690  *  @brief This function frees the command buffer.
1691  *
1692  *  @param priv         A pointer to struct lbs_private structure
1693  *  @return             0 or -1
1694  */
1695 int lbs_free_cmd_buffer(struct lbs_private *priv)
1696 {
1697         struct cmd_ctrl_node *cmdarray;
1698         unsigned int i;
1699
1700         lbs_deb_enter(LBS_DEB_HOST);
1701
1702         /* need to check if cmd array is allocated or not */
1703         if (priv->cmd_array == NULL) {
1704                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1705                 goto done;
1706         }
1707
1708         cmdarray = priv->cmd_array;
1709
1710         /* Release shared memory buffers */
1711         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1712                 if (cmdarray[i].cmdbuf) {
1713                         kfree(cmdarray[i].cmdbuf);
1714                         cmdarray[i].cmdbuf = NULL;
1715                 }
1716         }
1717
1718         /* Release cmd_ctrl_node */
1719         if (priv->cmd_array) {
1720                 kfree(priv->cmd_array);
1721                 priv->cmd_array = NULL;
1722         }
1723
1724 done:
1725         lbs_deb_leave(LBS_DEB_HOST);
1726         return 0;
1727 }
1728
1729 /**
1730  *  @brief This function gets a free command node if available in
1731  *  command free queue.
1732  *
1733  *  @param priv         A pointer to struct lbs_private structure
1734  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1735  */
1736 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1737 {
1738         struct cmd_ctrl_node *tempnode;
1739         unsigned long flags;
1740
1741         lbs_deb_enter(LBS_DEB_HOST);
1742
1743         if (!priv)
1744                 return NULL;
1745
1746         spin_lock_irqsave(&priv->driver_lock, flags);
1747
1748         if (!list_empty(&priv->cmdfreeq)) {
1749                 tempnode = list_first_entry(&priv->cmdfreeq,
1750                                             struct cmd_ctrl_node, list);
1751                 list_del(&tempnode->list);
1752         } else {
1753                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1754                 tempnode = NULL;
1755         }
1756
1757         spin_unlock_irqrestore(&priv->driver_lock, flags);
1758
1759         lbs_deb_leave(LBS_DEB_HOST);
1760         return tempnode;
1761 }
1762
1763 /**
1764  *  @brief This function executes next command in command
1765  *  pending queue. It will put firmware back to PS mode
1766  *  if applicable.
1767  *
1768  *  @param priv     A pointer to struct lbs_private structure
1769  *  @return        0 or -1
1770  */
1771 int lbs_execute_next_command(struct lbs_private *priv)
1772 {
1773         struct cmd_ctrl_node *cmdnode = NULL;
1774         struct cmd_header *cmd;
1775         unsigned long flags;
1776         int ret = 0;
1777
1778         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1779          * only caller to us is lbs_thread() and we get even when a
1780          * data packet is received */
1781         lbs_deb_enter(LBS_DEB_THREAD);
1782
1783         spin_lock_irqsave(&priv->driver_lock, flags);
1784
1785         if (priv->cur_cmd) {
1786                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1787                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1788                 ret = -1;
1789                 goto done;
1790         }
1791
1792         if (!list_empty(&priv->cmdpendingq)) {
1793                 cmdnode = list_first_entry(&priv->cmdpendingq,
1794                                            struct cmd_ctrl_node, list);
1795         }
1796
1797         spin_unlock_irqrestore(&priv->driver_lock, flags);
1798
1799         if (cmdnode) {
1800                 cmd = cmdnode->cmdbuf;
1801
1802                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1803                         if ((priv->psstate == PS_STATE_SLEEP) ||
1804                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1805                                 lbs_deb_host(
1806                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1807                                        le16_to_cpu(cmd->command),
1808                                        priv->psstate);
1809                                 ret = -1;
1810                                 goto done;
1811                         }
1812                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1813                                      "0x%04x in psstate %d\n",
1814                                      le16_to_cpu(cmd->command), priv->psstate);
1815                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1816                         /*
1817                          * 1. Non-PS command:
1818                          * Queue it. set needtowakeup to TRUE if current state
1819                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1820                          * 2. PS command but not Exit_PS:
1821                          * Ignore it.
1822                          * 3. PS command Exit_PS:
1823                          * Set needtowakeup to TRUE if current state is SLEEP,
1824                          * otherwise send this command down to firmware
1825                          * immediately.
1826                          */
1827                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1828                                 /*  Prepare to send Exit PS,
1829                                  *  this non PS command will be sent later */
1830                                 if ((priv->psstate == PS_STATE_SLEEP)
1831                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1832                                     ) {
1833                                         /* w/ new scheme, it will not reach here.
1834                                            since it is blocked in main_thread. */
1835                                         priv->needtowakeup = 1;
1836                                 } else
1837                                         lbs_ps_wakeup(priv, 0);
1838
1839                                 ret = 0;
1840                                 goto done;
1841                         } else {
1842                                 /*
1843                                  * PS command. Ignore it if it is not Exit_PS.
1844                                  * otherwise send it down immediately.
1845                                  */
1846                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1847
1848                                 lbs_deb_host(
1849                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1850                                        psm->action);
1851                                 if (psm->action !=
1852                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1853                                         lbs_deb_host(
1854                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1855                                         list_del(&cmdnode->list);
1856                                         spin_lock_irqsave(&priv->driver_lock, flags);
1857                                         lbs_complete_command(priv, cmdnode, 0);
1858                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1859
1860                                         ret = 0;
1861                                         goto done;
1862                                 }
1863
1864                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1865                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1866                                         lbs_deb_host(
1867                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1868                                         list_del(&cmdnode->list);
1869                                         spin_lock_irqsave(&priv->driver_lock, flags);
1870                                         lbs_complete_command(priv, cmdnode, 0);
1871                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1872                                         priv->needtowakeup = 1;
1873
1874                                         ret = 0;
1875                                         goto done;
1876                                 }
1877
1878                                 lbs_deb_host(
1879                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1880                         }
1881                 }
1882                 list_del(&cmdnode->list);
1883                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1884                             le16_to_cpu(cmd->command));
1885                 lbs_submit_command(priv, cmdnode);
1886         } else {
1887                 /*
1888                  * check if in power save mode, if yes, put the device back
1889                  * to PS mode
1890                  */
1891                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1892                     (priv->psstate == PS_STATE_FULL_POWER) &&
1893                     ((priv->connect_status == LBS_CONNECTED) ||
1894                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1895                         if (priv->secinfo.WPAenabled ||
1896                             priv->secinfo.WPA2enabled) {
1897                                 /* check for valid WPA group keys */
1898                                 if (priv->wpa_mcast_key.len ||
1899                                     priv->wpa_unicast_key.len) {
1900                                         lbs_deb_host(
1901                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1902                                                " go back to PS_SLEEP");
1903                                         lbs_ps_sleep(priv, 0);
1904                                 }
1905                         } else {
1906                                 lbs_deb_host(
1907                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1908                                        "go back to PS_SLEEP");
1909                                 lbs_ps_sleep(priv, 0);
1910                         }
1911                 }
1912         }
1913
1914         ret = 0;
1915 done:
1916         lbs_deb_leave(LBS_DEB_THREAD);
1917         return ret;
1918 }
1919
1920 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1921 {
1922         union iwreq_data iwrq;
1923         u8 buf[50];
1924
1925         lbs_deb_enter(LBS_DEB_WEXT);
1926
1927         memset(&iwrq, 0, sizeof(union iwreq_data));
1928         memset(buf, 0, sizeof(buf));
1929
1930         snprintf(buf, sizeof(buf) - 1, "%s", str);
1931
1932         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1933
1934         /* Send Event to upper layer */
1935         lbs_deb_wext("event indication string %s\n", (char *)buf);
1936         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1937         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1938
1939         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1940
1941         lbs_deb_leave(LBS_DEB_WEXT);
1942 }
1943
1944 static void lbs_send_confirmsleep(struct lbs_private *priv)
1945 {
1946         unsigned long flags;
1947         int ret;
1948
1949         lbs_deb_enter(LBS_DEB_HOST);
1950         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1951                 sizeof(confirm_sleep));
1952
1953         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1954                 sizeof(confirm_sleep));
1955         if (ret) {
1956                 lbs_pr_alert("confirm_sleep failed\n");
1957                 goto out;
1958         }
1959
1960         spin_lock_irqsave(&priv->driver_lock, flags);
1961
1962         /* We don't get a response on the sleep-confirmation */
1963         priv->dnld_sent = DNLD_RES_RECEIVED;
1964
1965         /* If nothing to do, go back to sleep (?) */
1966         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1967                 priv->psstate = PS_STATE_SLEEP;
1968
1969         spin_unlock_irqrestore(&priv->driver_lock, flags);
1970
1971 out:
1972         lbs_deb_leave(LBS_DEB_HOST);
1973 }
1974
1975 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1976 {
1977         lbs_deb_enter(LBS_DEB_HOST);
1978
1979         /*
1980          * PS is currently supported only in Infrastructure mode
1981          * Remove this check if it is to be supported in IBSS mode also
1982          */
1983
1984         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1985                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1986
1987         lbs_deb_leave(LBS_DEB_HOST);
1988 }
1989
1990 /**
1991  *  @brief This function sends Exit_PS command to firmware.
1992  *
1993  *  @param priv         A pointer to struct lbs_private structure
1994  *  @param wait_option  wait response or not
1995  *  @return             n/a
1996  */
1997 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1998 {
1999         __le32 Localpsmode;
2000
2001         lbs_deb_enter(LBS_DEB_HOST);
2002
2003         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
2004
2005         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
2006                               CMD_SUBCMD_EXIT_PS,
2007                               wait_option, 0, &Localpsmode);
2008
2009         lbs_deb_leave(LBS_DEB_HOST);
2010 }
2011
2012 /**
2013  *  @brief This function checks condition and prepares to
2014  *  send sleep confirm command to firmware if ok.
2015  *
2016  *  @param priv         A pointer to struct lbs_private structure
2017  *  @param psmode       Power Saving mode
2018  *  @return             n/a
2019  */
2020 void lbs_ps_confirm_sleep(struct lbs_private *priv)
2021 {
2022         unsigned long flags =0;
2023         int allowed = 1;
2024
2025         lbs_deb_enter(LBS_DEB_HOST);
2026
2027         spin_lock_irqsave(&priv->driver_lock, flags);
2028         if (priv->dnld_sent) {
2029                 allowed = 0;
2030                 lbs_deb_host("dnld_sent was set\n");
2031         }
2032
2033         /* In-progress command? */
2034         if (priv->cur_cmd) {
2035                 allowed = 0;
2036                 lbs_deb_host("cur_cmd was set\n");
2037         }
2038
2039         /* Pending events or command responses? */
2040         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
2041                 allowed = 0;
2042                 lbs_deb_host("pending events or command responses\n");
2043         }
2044         spin_unlock_irqrestore(&priv->driver_lock, flags);
2045
2046         if (allowed) {
2047                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
2048                 lbs_send_confirmsleep(priv);
2049         } else {
2050                 lbs_deb_host("sleep confirm has been delayed\n");
2051         }
2052
2053         lbs_deb_leave(LBS_DEB_HOST);
2054 }
2055
2056
2057 /**
2058  * @brief Configures the transmission power control functionality.
2059  *
2060  * @param priv          A pointer to struct lbs_private structure
2061  * @param enable        Transmission power control enable
2062  * @param p0            Power level when link quality is good (dBm).
2063  * @param p1            Power level when link quality is fair (dBm).
2064  * @param p2            Power level when link quality is poor (dBm).
2065  * @param usesnr        Use Signal to Noise Ratio in TPC
2066  *
2067  * @return 0 on success
2068  */
2069 int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
2070                 int8_t p2, int usesnr)
2071 {
2072         struct cmd_ds_802_11_tpc_cfg cmd;
2073         int ret;
2074
2075         memset(&cmd, 0, sizeof(cmd));
2076         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2077         cmd.action = cpu_to_le16(CMD_ACT_SET);
2078         cmd.enable = !!enable;
2079         cmd.usesnr = !!usesnr;
2080         cmd.P0 = p0;
2081         cmd.P1 = p1;
2082         cmd.P2 = p2;
2083
2084         ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
2085
2086         return ret;
2087 }
2088
2089 /**
2090  * @brief Configures the power adaptation settings.
2091  *
2092  * @param priv          A pointer to struct lbs_private structure
2093  * @param enable        Power adaptation enable
2094  * @param p0            Power level for 1, 2, 5.5 and 11 Mbps (dBm).
2095  * @param p1            Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
2096  * @param p2            Power level for 48 and 54 Mbps (dBm).
2097  *
2098  * @return 0 on Success
2099  */
2100
2101 int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
2102                 int8_t p1, int8_t p2)
2103 {
2104         struct cmd_ds_802_11_pa_cfg cmd;
2105         int ret;
2106
2107         memset(&cmd, 0, sizeof(cmd));
2108         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2109         cmd.action = cpu_to_le16(CMD_ACT_SET);
2110         cmd.enable = !!enable;
2111         cmd.P0 = p0;
2112         cmd.P1 = p1;
2113         cmd.P2 = p2;
2114
2115         ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
2116
2117         return ret;
2118 }
2119
2120
2121 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
2122         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
2123         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2124         unsigned long callback_arg)
2125 {
2126         struct cmd_ctrl_node *cmdnode;
2127
2128         lbs_deb_enter(LBS_DEB_HOST);
2129
2130         if (priv->surpriseremoved) {
2131                 lbs_deb_host("PREP_CMD: card removed\n");
2132                 cmdnode = ERR_PTR(-ENOENT);
2133                 goto done;
2134         }
2135
2136         if (!lbs_is_cmd_allowed(priv)) {
2137                 cmdnode = ERR_PTR(-EBUSY);
2138                 goto done;
2139         }
2140
2141         cmdnode = lbs_get_cmd_ctrl_node(priv);
2142         if (cmdnode == NULL) {
2143                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2144
2145                 /* Wake up main thread to execute next command */
2146                 wake_up_interruptible(&priv->waitq);
2147                 cmdnode = ERR_PTR(-ENOBUFS);
2148                 goto done;
2149         }
2150
2151         cmdnode->callback = callback;
2152         cmdnode->callback_arg = callback_arg;
2153
2154         /* Copy the incoming command to the buffer */
2155         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2156
2157         /* Set sequence number, clean result, move to buffer */
2158         priv->seqnum++;
2159         cmdnode->cmdbuf->command = cpu_to_le16(command);
2160         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2161         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2162         cmdnode->cmdbuf->result  = 0;
2163
2164         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2165
2166         cmdnode->cmdwaitqwoken = 0;
2167         lbs_queue_cmd(priv, cmdnode);
2168         wake_up_interruptible(&priv->waitq);
2169
2170  done:
2171         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2172         return cmdnode;
2173 }
2174
2175 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2176         struct cmd_header *in_cmd, int in_cmd_size)
2177 {
2178         lbs_deb_enter(LBS_DEB_CMD);
2179         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2180                 lbs_cmd_async_callback, 0);
2181         lbs_deb_leave(LBS_DEB_CMD);
2182 }
2183
2184 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2185               struct cmd_header *in_cmd, int in_cmd_size,
2186               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2187               unsigned long callback_arg)
2188 {
2189         struct cmd_ctrl_node *cmdnode;
2190         unsigned long flags;
2191         int ret = 0;
2192
2193         lbs_deb_enter(LBS_DEB_HOST);
2194
2195         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2196                                   callback, callback_arg);
2197         if (IS_ERR(cmdnode)) {
2198                 ret = PTR_ERR(cmdnode);
2199                 goto done;
2200         }
2201
2202         might_sleep();
2203         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2204
2205         spin_lock_irqsave(&priv->driver_lock, flags);
2206         ret = cmdnode->result;
2207         if (ret)
2208                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2209                             command, ret);
2210
2211         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2212         spin_unlock_irqrestore(&priv->driver_lock, flags);
2213
2214 done:
2215         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2216         return ret;
2217 }
2218 EXPORT_SYMBOL_GPL(__lbs_cmd);
2219
2220