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/ieee80211.h>
   8 #include <linux/kfifo.h>
   9 #include "host.h"
  10 #include "hostcmd.h"
  11 #include "decl.h"
  12 #include "defs.h"
  13 #include "dev.h"
  14 #include "assoc.h"
  15 #include "wext.h"
  16 #include "cmd.h"
  17
  18 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
  19
  20
  21 /**
  22  *  @brief Simple callback that copies response back into command
  23  *
  24  *  @param priv         A pointer to struct lbs_private structure
  25  *  @param extra        A pointer to the original command structure for which
  26  *                      'resp' is a response
  27  *  @param resp         A pointer to the command response
  28  *
  29  *  @return             0 on success, error on failure
  30  */
  31 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
  32                      struct cmd_header *resp)
  33 {
  34         struct cmd_header *buf = (void *)extra;
  35         uint16_t copy_len;
  36
  37         copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
  38         memcpy(buf, resp, copy_len);
  39         return 0;
  40 }
  41 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
  42
  43 /**
  44  *  @brief Simple callback that ignores the result. Use this if
  45  *  you just want to send a command to the hardware, but don't
  46  *  care for the result.
  47  *
  48  *  @param priv         ignored
  49  *  @param extra        ignored
  50  *  @param resp         ignored
  51  *
  52  *  @return             0 for success
  53  */
  54 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
  55                      struct cmd_header *resp)
  56 {
  57         return 0;
  58 }
  59
  60
  61 /**
  62  *  @brief Checks whether a command is allowed in Power Save mode
  63  *
  64  *  @param command the command ID
  65  *  @return        1 if allowed, 0 if not allowed
  66  */
  67 static u8 is_command_allowed_in_ps(u16 cmd)
  68 {
  69         switch (cmd) {
  70         case CMD_802_11_RSSI:
  71                 return 1;
  72         default:
  73                 break;
  74         }
  75         return 0;
  76 }
  77
  78 /**
  79  *  @brief Updates the hardware details like MAC address and regulatory region
  80  *
  81  *  @param priv         A pointer to struct lbs_private structure
  82  *
  83  *  @return             0 on success, error on failure
  84  */
  85 int lbs_update_hw_spec(struct lbs_private *priv)
  86 {
  87         struct cmd_ds_get_hw_spec cmd;
  88         int ret = -1;
  89         u32 i;
  90         DECLARE_MAC_BUF(mac);
  91
  92         lbs_deb_enter(LBS_DEB_CMD);
  93
  94         memset(&cmd, 0, sizeof(cmd));
  95         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
  96         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
  97         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
  98         if (ret)
  99                 goto out;
 100
 101         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
 102
 103         /* The firmware release is in an interesting format: the patch
 104          * level is in the most significant nibble ... so fix that: */
 105         priv->fwrelease = le32_to_cpu(cmd.fwrelease);
 106         priv->fwrelease = (priv->fwrelease << 8) |
 107                 (priv->fwrelease >> 24 & 0xff);
 108
 109         /* Some firmware capabilities:
 110          * CF card    firmware 5.0.16p0:   cap 0x00000303
 111          * USB dongle firmware 5.110.17p2: cap 0x00000303
 112          */
 113         lbs_pr_info("%s, fw %u.%u.%up%u, cap 0x%08x\n",
 114                 print_mac(mac, cmd.permanentaddr),
 115                 priv->fwrelease >> 24 & 0xff,
 116                 priv->fwrelease >> 16 & 0xff,
 117                 priv->fwrelease >>  8 & 0xff,
 118                 priv->fwrelease       & 0xff,
 119                 priv->fwcapinfo);
 120         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
 121                     cmd.hwifversion, cmd.version);
 122
 123         /* Clamp region code to 8-bit since FW spec indicates that it should
 124          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
 125          * returns non-zero high 8 bits here.
 126          */
 127         priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
 128
 129         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 130                 /* use the region code to search for the index */
 131                 if (priv->regioncode == lbs_region_code_to_index[i])
 132                         break;
 133         }
 134
 135         /* if it's unidentified region code, use the default (USA) */
 136         if (i >= MRVDRV_MAX_REGION_CODE) {
 137                 priv->regioncode = 0x10;
 138                 lbs_pr_info("unidentified region code; using the default (USA)\n");
 139         }
 140
 141         if (priv->current_addr[0] == 0xff)
 142                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
 143
 144         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
 145         if (priv->mesh_dev)
 146                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 147
 148         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
 149                 ret = -1;
 150                 goto out;
 151         }
 152
 153         if (lbs_set_universaltable(priv, 0)) {
 154                 ret = -1;
 155                 goto out;
 156         }
 157
 158 out:
 159         lbs_deb_leave(LBS_DEB_CMD);
 160         return ret;
 161 }
 162
 163 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
 164 {
 165         struct cmd_ds_host_sleep cmd_config;
 166         int ret;
 167
 168         cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
 169         cmd_config.criteria = cpu_to_le32(criteria);
 170         cmd_config.gpio = priv->wol_gpio;
 171         cmd_config.gap = priv->wol_gap;
 172
 173         ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
 174         if (!ret) {
 175                 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
 176                 priv->wol_criteria = criteria;
 177         } else {
 178                 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
 179         }
 180
 181         return ret;
 182 }
 183 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
 184
 185 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
 186                                    u16 cmd_action)
 187 {
 188         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
 189
 190         lbs_deb_enter(LBS_DEB_CMD);
 191
 192         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
 193         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
 194                                 S_DS_GEN);
 195         psm->action = cpu_to_le16(cmd_action);
 196         psm->multipledtim = 0;
 197         switch (cmd_action) {
 198         case CMD_SUBCMD_ENTER_PS:
 199                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
 200
 201                 psm->locallisteninterval = 0;
 202                 psm->nullpktinterval = 0;
 203                 psm->multipledtim =
 204                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
 205                 break;
 206
 207         case CMD_SUBCMD_EXIT_PS:
 208                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
 209                 break;
 210
 211         case CMD_SUBCMD_SLEEP_CONFIRMED:
 212                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
 213                 break;
 214
 215         default:
 216                 break;
 217         }
 218
 219         lbs_deb_leave(LBS_DEB_CMD);
 220         return 0;
 221 }
 222
 223 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
 224                                       uint16_t cmd_action, uint16_t *timeout)
 225 {
 226         struct cmd_ds_802_11_inactivity_timeout cmd;
 227         int ret;
 228
 229         lbs_deb_enter(LBS_DEB_CMD);
 230
 231         cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
 232         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 233
 234         cmd.action = cpu_to_le16(cmd_action);
 235
 236         if (cmd_action == CMD_ACT_SET)
 237                 cmd.timeout = cpu_to_le16(*timeout);
 238         else
 239                 cmd.timeout = 0;
 240
 241         ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
 242
 243         if (!ret)
 244                 *timeout = le16_to_cpu(cmd.timeout);
 245
 246         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 247         return 0;
 248 }
 249
 250 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
 251                                 struct sleep_params *sp)
 252 {
 253         struct cmd_ds_802_11_sleep_params cmd;
 254         int ret;
 255
 256         lbs_deb_enter(LBS_DEB_CMD);
 257
 258         if (cmd_action == CMD_ACT_GET) {
 259                 memset(&cmd, 0, sizeof(cmd));
 260         } else {
 261                 cmd.error = cpu_to_le16(sp->sp_error);
 262                 cmd.offset = cpu_to_le16(sp->sp_offset);
 263                 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
 264                 cmd.calcontrol = sp->sp_calcontrol;
 265                 cmd.externalsleepclk = sp->sp_extsleepclk;
 266                 cmd.reserved = cpu_to_le16(sp->sp_reserved);
 267         }
 268         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 269         cmd.action = cpu_to_le16(cmd_action);
 270
 271         ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
 272
 273         if (!ret) {
 274                 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
 275                             "calcontrol 0x%x extsleepclk 0x%x\n",
 276                             le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
 277                             le16_to_cpu(cmd.stabletime), cmd.calcontrol,
 278                             cmd.externalsleepclk);
 279
 280                 sp->sp_error = le16_to_cpu(cmd.error);
 281                 sp->sp_offset = le16_to_cpu(cmd.offset);
 282                 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
 283                 sp->sp_calcontrol = cmd.calcontrol;
 284                 sp->sp_extsleepclk = cmd.externalsleepclk;
 285                 sp->sp_reserved = le16_to_cpu(cmd.reserved);
 286         }
 287
 288         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 289         return 0;
 290 }
 291
 292 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
 293                            struct assoc_request *assoc)
 294 {
 295         struct cmd_ds_802_11_set_wep cmd;
 296         int ret = 0;
 297
 298         lbs_deb_enter(LBS_DEB_CMD);
 299
 300         memset(&cmd, 0, sizeof(cmd));
 301         cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
 302         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 303
 304         cmd.action = cpu_to_le16(cmd_action);
 305
 306         if (cmd_action == CMD_ACT_ADD) {
 307                 int i;
 308
 309                 /* default tx key index */
 310                 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
 311                                            CMD_WEP_KEY_INDEX_MASK);
 312
 313                 /* Copy key types and material to host command structure */
 314                 for (i = 0; i < 4; i++) {
 315                         struct enc_key *pkey = &assoc->wep_keys[i];
 316
 317                         switch (pkey->len) {
 318                         case KEY_LEN_WEP_40:
 319                                 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
 320                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 321                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
 322                                 break;
 323                         case KEY_LEN_WEP_104:
 324                                 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
 325                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 326                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
 327                                 break;
 328                         case 0:
 329                                 break;
 330                         default:
 331                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
 332                                             i, pkey->len);
 333                                 ret = -1;
 334                                 goto done;
 335                                 break;
 336                         }
 337                 }
 338         } else if (cmd_action == CMD_ACT_REMOVE) {
 339                 /* ACT_REMOVE clears _all_ WEP keys */
 340
 341                 /* default tx key index */
 342                 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
 343                                            CMD_WEP_KEY_INDEX_MASK);
 344                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
 345         }
 346
 347         ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
 348 done:
 349         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 350         return ret;
 351 }
 352
 353 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
 354                               uint16_t *enable)
 355 {
 356         struct cmd_ds_802_11_enable_rsn cmd;
 357         int ret;
 358
 359         lbs_deb_enter(LBS_DEB_CMD);
 360
 361         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 362         cmd.action = cpu_to_le16(cmd_action);
 363
 364         if (cmd_action == CMD_ACT_GET)
 365                 cmd.enable = 0;
 366         else {
 367                 if (*enable)
 368                         cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
 369                 else
 370                         cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
 371                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
 372         }
 373
 374         ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
 375         if (!ret && cmd_action == CMD_ACT_GET)
 376                 *enable = le16_to_cpu(cmd.enable);
 377
 378         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 379         return ret;
 380 }
 381
 382 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
 383                             struct enc_key *key)
 384 {
 385         lbs_deb_enter(LBS_DEB_CMD);
 386
 387         if (key->flags & KEY_INFO_WPA_ENABLED)
 388                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
 389         if (key->flags & KEY_INFO_WPA_UNICAST)
 390                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
 391         if (key->flags & KEY_INFO_WPA_MCAST)
 392                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
 393
 394         keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
 395         keyparam->keytypeid = cpu_to_le16(key->type);
 396         keyparam->keylen = cpu_to_le16(key->len);
 397         memcpy(keyparam->key, key->key, key->len);
 398
 399         /* Length field doesn't include the {type,length} header */
 400         keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
 401         lbs_deb_leave(LBS_DEB_CMD);
 402 }
 403
 404 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
 405                                 struct assoc_request *assoc)
 406 {
 407         struct cmd_ds_802_11_key_material cmd;
 408         int ret = 0;
 409         int index = 0;
 410
 411         lbs_deb_enter(LBS_DEB_CMD);
 412
 413         cmd.action = cpu_to_le16(cmd_action);
 414         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 415
 416         if (cmd_action == CMD_ACT_GET) {
 417                 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
 418         } else {
 419                 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
 420
 421                 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
 422                         set_one_wpa_key(&cmd.keyParamSet[index],
 423                                         &assoc->wpa_unicast_key);
 424                         index++;
 425                 }
 426
 427                 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
 428                         set_one_wpa_key(&cmd.keyParamSet[index],
 429                                         &assoc->wpa_mcast_key);
 430                         index++;
 431                 }
 432
 433                 /* The common header and as many keys as we included */
 434                 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
 435                                                     keyParamSet[index]));
 436         }
 437         ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
 438         /* Copy the returned key to driver private data */
 439         if (!ret && cmd_action == CMD_ACT_GET) {
 440                 void *buf_ptr = cmd.keyParamSet;
 441                 void *resp_end = &(&cmd)[1];
 442
 443                 while (buf_ptr < resp_end) {
 444                         struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
 445                         struct enc_key *key;
 446                         uint16_t param_set_len = le16_to_cpu(keyparam->length);
 447                         uint16_t key_len = le16_to_cpu(keyparam->keylen);
 448                         uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
 449                         uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
 450                         void *end;
 451
 452                         end = (void *)keyparam + sizeof(keyparam->type)
 453                                 + sizeof(keyparam->length) + param_set_len;
 454
 455                         /* Make sure we don't access past the end of the IEs */
 456                         if (end > resp_end)
 457                                 break;
 458
 459                         if (key_flags & KEY_INFO_WPA_UNICAST)
 460                                 key = &priv->wpa_unicast_key;
 461                         else if (key_flags & KEY_INFO_WPA_MCAST)
 462                                 key = &priv->wpa_mcast_key;
 463                         else
 464                                 break;
 465
 466                         /* Copy returned key into driver */
 467                         memset(key, 0, sizeof(struct enc_key));
 468                         if (key_len > sizeof(key->key))
 469                                 break;
 470                         key->type = key_type;
 471                         key->flags = key_flags;
 472                         key->len = key_len;
 473                         memcpy(key->key, keyparam->key, key->len);
 474
 475                         buf_ptr = end + 1;
 476                 }
 477         }
 478
 479         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 480         return ret;
 481 }
 482
 483 static int lbs_cmd_802_11_reset(struct cmd_ds_command *cmd, int cmd_action)
 484 {
 485         struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
 486
 487         lbs_deb_enter(LBS_DEB_CMD);
 488
 489         cmd->command = cpu_to_le16(CMD_802_11_RESET);
 490         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
 491         reset->action = cpu_to_le16(cmd_action);
 492
 493         lbs_deb_leave(LBS_DEB_CMD);
 494         return 0;
 495 }
 496
 497 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
 498                                     struct cmd_ds_command *cmd,
 499                                     int cmd_action,
 500                                     int cmd_oid, void *pdata_buf)
 501 {
 502         struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
 503         u8 ucTemp;
 504
 505         lbs_deb_enter(LBS_DEB_CMD);
 506
 507         lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
 508
 509         cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
 510         cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
 511
 512         switch (cmd_oid) {
 513         case OID_802_11_INFRASTRUCTURE_MODE:
 514         {
 515                 u8 mode = (u8) (size_t) pdata_buf;
 516                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 517                 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
 518                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
 519                 if (mode == IW_MODE_ADHOC) {
 520                         ucTemp = SNMP_MIB_VALUE_ADHOC;
 521                 } else {
 522                         /* Infra and Auto modes */
 523                         ucTemp = SNMP_MIB_VALUE_INFRA;
 524                 }
 525
 526                 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
 527
 528                 break;
 529         }
 530
 531         case OID_802_11D_ENABLE:
 532                 {
 533                         u32 ulTemp;
 534
 535                         pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
 536
 537                         if (cmd_action == CMD_ACT_SET) {
 538                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 539                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 540                                 ulTemp = *(u32 *)pdata_buf;
 541                                 *((__le16 *)(pSNMPMIB->value)) =
 542                                     cpu_to_le16((u16) ulTemp);
 543                         }
 544                         break;
 545                 }
 546
 547         case OID_802_11_FRAGMENTATION_THRESHOLD:
 548                 {
 549                         u32 ulTemp;
 550
 551                         pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
 552
 553                         if (cmd_action == CMD_ACT_GET) {
 554                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 555                         } else if (cmd_action == CMD_ACT_SET) {
 556                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 557                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 558                                 ulTemp = *((u32 *) pdata_buf);
 559                                 *((__le16 *)(pSNMPMIB->value)) =
 560                                     cpu_to_le16((u16) ulTemp);
 561
 562                         }
 563
 564                         break;
 565                 }
 566
 567         case OID_802_11_RTS_THRESHOLD:
 568                 {
 569
 570                         u32 ulTemp;
 571                         pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
 572
 573                         if (cmd_action == CMD_ACT_GET) {
 574                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 575                         } else if (cmd_action == CMD_ACT_SET) {
 576                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 577                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 578                                 ulTemp = *((u32 *)pdata_buf);
 579                                 *(__le16 *)(pSNMPMIB->value) =
 580                                     cpu_to_le16((u16) ulTemp);
 581
 582                         }
 583                         break;
 584                 }
 585         case OID_802_11_TX_RETRYCOUNT:
 586                 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
 587
 588                 if (cmd_action == CMD_ACT_GET) {
 589                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 590                 } else if (cmd_action == CMD_ACT_SET) {
 591                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 592                         pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 593                         *((__le16 *)(pSNMPMIB->value)) =
 594                             cpu_to_le16((u16) priv->txretrycount);
 595                 }
 596
 597                 break;
 598         default:
 599                 break;
 600         }
 601
 602         lbs_deb_cmd(
 603                "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
 604                le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
 605                le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
 606
 607         lbs_deb_cmd(
 608                "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
 609                le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
 610                le16_to_cpu(pSNMPMIB->bufsize),
 611                le16_to_cpu(*(__le16 *) pSNMPMIB->value));
 612
 613         lbs_deb_leave(LBS_DEB_CMD);
 614         return 0;
 615 }
 616
 617 /**
 618  *  @brief Get the min, max, and current TX power
 619  *
 620  *  @param priv         A pointer to struct lbs_private structure
 621  *  @param curlevel     Current power level in dBm
 622  *  @param minlevel     Minimum supported power level in dBm (optional)
 623  *  @param maxlevel     Maximum supported power level in dBm (optional)
 624  *
 625  *  @return             0 on success, error on failure
 626  */
 627 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
 628                      s16 *maxlevel)
 629 {
 630         struct cmd_ds_802_11_rf_tx_power cmd;
 631         int ret;
 632
 633         lbs_deb_enter(LBS_DEB_CMD);
 634
 635         memset(&cmd, 0, sizeof(cmd));
 636         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 637         cmd.action = cpu_to_le16(CMD_ACT_GET);
 638
 639         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 640         if (ret == 0) {
 641                 *curlevel = le16_to_cpu(cmd.curlevel);
 642                 if (minlevel)
 643                         *minlevel = le16_to_cpu(cmd.minlevel);
 644                 if (maxlevel)
 645                         *maxlevel = le16_to_cpu(cmd.maxlevel);
 646         }
 647
 648         lbs_deb_leave(LBS_DEB_CMD);
 649         return ret;
 650 }
 651
 652 /**
 653  *  @brief Set the TX power
 654  *
 655  *  @param priv         A pointer to struct lbs_private structure
 656  *  @param dbm          The desired power level in dBm
 657  *
 658  *  @return             0 on success, error on failure
 659  */
 660 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
 661 {
 662         struct cmd_ds_802_11_rf_tx_power cmd;
 663         int ret;
 664
 665         lbs_deb_enter(LBS_DEB_CMD);
 666
 667         memset(&cmd, 0, sizeof(cmd));
 668         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 669         cmd.action = cpu_to_le16(CMD_ACT_SET);
 670         cmd.curlevel = cpu_to_le16(dbm);
 671
 672         lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
 673
 674         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 675
 676         lbs_deb_leave(LBS_DEB_CMD);
 677         return ret;
 678 }
 679
 680 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 681                                       u16 cmd_action, void *pdata_buf)
 682 {
 683         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 684
 685         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 686         cmd->size =
 687             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 688                              S_DS_GEN);
 689
 690         monitor->action = cpu_to_le16(cmd_action);
 691         if (cmd_action == CMD_ACT_SET) {
 692                 monitor->mode =
 693                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 694         }
 695
 696         return 0;
 697 }
 698
 699 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
 700 {
 701 /*              Bit     Rate
 702 *               15:13 Reserved
 703 *               12    54 Mbps
 704 *               11    48 Mbps
 705 *               10    36 Mbps
 706 *               9     24 Mbps
 707 *               8     18 Mbps
 708 *               7     12 Mbps
 709 *               6     9 Mbps
 710 *               5     6 Mbps
 711 *               4     Reserved
 712 *               3     11 Mbps
 713 *               2     5.5 Mbps
 714 *               1     2 Mbps
 715 *               0     1 Mbps
 716 **/
 717
 718         uint16_t ratemask;
 719         int i = lbs_data_rate_to_fw_index(rate);
 720         if (lower_rates_ok)
 721                 ratemask = (0x1fef >> (12 - i));
 722         else
 723                 ratemask = (1 << i);
 724         return cpu_to_le16(ratemask);
 725 }
 726
 727 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 728                                       uint16_t cmd_action)
 729 {
 730         struct cmd_ds_802_11_rate_adapt_rateset cmd;
 731         int ret;
 732
 733         lbs_deb_enter(LBS_DEB_CMD);
 734
 735         if (!priv->cur_rate && !priv->enablehwauto)
 736                 return -EINVAL;
 737
 738         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 739
 740         cmd.action = cpu_to_le16(cmd_action);
 741         cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
 742         cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
 743         ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
 744         if (!ret && cmd_action == CMD_ACT_GET) {
 745                 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
 746                 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
 747         }
 748
 749         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 750         return ret;
 751 }
 752 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
 753
 754 /**
 755  *  @brief Set the data rate
 756  *
 757  *  @param priv         A pointer to struct lbs_private structure
 758  *  @param rate         The desired data rate, or 0 to clear a locked rate
 759  *
 760  *  @return             0 on success, error on failure
 761  */
 762 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 763 {
 764         struct cmd_ds_802_11_data_rate cmd;
 765         int ret = 0;
 766
 767         lbs_deb_enter(LBS_DEB_CMD);
 768
 769         memset(&cmd, 0, sizeof(cmd));
 770         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 771
 772         if (rate > 0) {
 773                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 774                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 775                 if (cmd.rates[0] == 0) {
 776                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 777                                     " 0x%02X\n", rate);
 778                         ret = 0;
 779                         goto out;
 780                 }
 781                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 782         } else {
 783                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 784                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 785         }
 786
 787         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 788         if (ret)
 789                 goto out;
 790
 791         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 792
 793         /* FIXME: get actual rates FW can do if this command actually returns
 794          * all data rates supported.
 795          */
 796         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 797         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 798
 799 out:
 800         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 801         return ret;
 802 }
 803
 804 /**
 805  *  @brief Get the radio channel
 806  *
 807  *  @param priv         A pointer to struct lbs_private structure
 808  *
 809  *  @return             The channel on success, error on failure
 810  */
 811 int lbs_get_channel(struct lbs_private *priv)
 812 {
 813         struct cmd_ds_802_11_rf_channel cmd;
 814         int ret = 0;
 815
 816         lbs_deb_enter(LBS_DEB_CMD);
 817
 818         memset(&cmd, 0, sizeof(cmd));
 819         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 820         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 821
 822         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 823         if (ret)
 824                 goto out;
 825
 826         ret = le16_to_cpu(cmd.channel);
 827         lbs_deb_cmd("current radio channel is %d\n", ret);
 828
 829 out:
 830         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 831         return ret;
 832 }
 833
 834 int lbs_update_channel(struct lbs_private *priv)
 835 {
 836         int ret;
 837
 838         /* the channel in f/w could be out of sync; get the current channel */
 839         lbs_deb_enter(LBS_DEB_ASSOC);
 840
 841         ret = lbs_get_channel(priv);
 842         if (ret > 0) {
 843                 priv->curbssparams.channel = ret;
 844                 ret = 0;
 845         }
 846         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 847         return ret;
 848 }
 849
 850 /**
 851  *  @brief Set the radio channel
 852  *
 853  *  @param priv         A pointer to struct lbs_private structure
 854  *  @param channel      The desired channel, or 0 to clear a locked channel
 855  *
 856  *  @return             0 on success, error on failure
 857  */
 858 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 859 {
 860         struct cmd_ds_802_11_rf_channel cmd;
 861         u8 old_channel = priv->curbssparams.channel;
 862         int ret = 0;
 863
 864         lbs_deb_enter(LBS_DEB_CMD);
 865
 866         memset(&cmd, 0, sizeof(cmd));
 867         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 868         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 869         cmd.channel = cpu_to_le16(channel);
 870
 871         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 872         if (ret)
 873                 goto out;
 874
 875         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 876         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 877                 priv->curbssparams.channel);
 878
 879 out:
 880         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 881         return ret;
 882 }
 883
 884 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 885                                 struct cmd_ds_command *cmd)
 886 {
 887
 888         lbs_deb_enter(LBS_DEB_CMD);
 889         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 890         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 891         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 892
 893         /* reset Beacon SNR/NF/RSSI values */
 894         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 895         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 896         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 897         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 898         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 899         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 900
 901         lbs_deb_leave(LBS_DEB_CMD);
 902         return 0;
 903 }
 904
 905 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 906                                u8 cmd_action, void *pdata_buf)
 907 {
 908         struct lbs_offset_value *offval;
 909
 910         lbs_deb_enter(LBS_DEB_CMD);
 911
 912         offval = (struct lbs_offset_value *)pdata_buf;
 913
 914         switch (le16_to_cpu(cmdptr->command)) {
 915         case CMD_MAC_REG_ACCESS:
 916                 {
 917                         struct cmd_ds_mac_reg_access *macreg;
 918
 919                         cmdptr->size =
 920                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 921                                         + S_DS_GEN);
 922                         macreg =
 923                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 924                             macreg;
 925
 926                         macreg->action = cpu_to_le16(cmd_action);
 927                         macreg->offset = cpu_to_le16((u16) offval->offset);
 928                         macreg->value = cpu_to_le32(offval->value);
 929
 930                         break;
 931                 }
 932
 933         case CMD_BBP_REG_ACCESS:
 934                 {
 935                         struct cmd_ds_bbp_reg_access *bbpreg;
 936
 937                         cmdptr->size =
 938                             cpu_to_le16(sizeof
 939                                              (struct cmd_ds_bbp_reg_access)
 940                                              + S_DS_GEN);
 941                         bbpreg =
 942                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 943                             bbpreg;
 944
 945                         bbpreg->action = cpu_to_le16(cmd_action);
 946                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 947                         bbpreg->value = (u8) offval->value;
 948
 949                         break;
 950                 }
 951
 952         case CMD_RF_REG_ACCESS:
 953                 {
 954                         struct cmd_ds_rf_reg_access *rfreg;
 955
 956                         cmdptr->size =
 957                             cpu_to_le16(sizeof
 958                                              (struct cmd_ds_rf_reg_access) +
 959                                              S_DS_GEN);
 960                         rfreg =
 961                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 962                             rfreg;
 963
 964                         rfreg->action = cpu_to_le16(cmd_action);
 965                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 966                         rfreg->value = (u8) offval->value;
 967
 968                         break;
 969                 }
 970
 971         default:
 972                 break;
 973         }
 974
 975         lbs_deb_leave(LBS_DEB_CMD);
 976         return 0;
 977 }
 978
 979 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 980                                u16 cmd_action, void *pdata_buf)
 981 {
 982         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 983         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 984
 985         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 986         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 987         cmd->result = 0;
 988         bt_access->action = cpu_to_le16(cmd_action);
 989
 990         switch (cmd_action) {
 991         case CMD_ACT_BT_ACCESS_ADD:
 992                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 993                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 994                 break;
 995         case CMD_ACT_BT_ACCESS_DEL:
 996                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 997                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 998                 break;
 999         case CMD_ACT_BT_ACCESS_LIST:
1000                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1001                 break;
1002         case CMD_ACT_BT_ACCESS_RESET:
1003                 break;
1004         case CMD_ACT_BT_ACCESS_SET_INVERT:
1005                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1006                 break;
1007         case CMD_ACT_BT_ACCESS_GET_INVERT:
1008                 break;
1009         default:
1010                 break;
1011         }
1012         lbs_deb_leave(LBS_DEB_CMD);
1013         return 0;
1014 }
1015
1016 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1017                                u16 cmd_action, void *pdata_buf)
1018 {
1019         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1020         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1021
1022         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1023         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1024         cmd->result = 0;
1025
1026         if (pdata_buf)
1027                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1028         else
1029                 memset(fwt_access, 0, sizeof(*fwt_access));
1030
1031         fwt_access->action = cpu_to_le16(cmd_action);
1032
1033         lbs_deb_leave(LBS_DEB_CMD);
1034         return 0;
1035 }
1036
1037 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1038                     struct cmd_ds_mesh_access *cmd)
1039 {
1040         int ret;
1041
1042         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1043
1044         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1045         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1046         cmd->hdr.result = 0;
1047
1048         cmd->action = cpu_to_le16(cmd_action);
1049
1050         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1051
1052         lbs_deb_leave(LBS_DEB_CMD);
1053         return ret;
1054 }
1055
1056 static int __lbs_mesh_config_send(struct lbs_private *priv,
1057                                   struct cmd_ds_mesh_config *cmd,
1058                                   uint16_t action, uint16_t type)
1059 {
1060         int ret;
1061
1062         lbs_deb_enter(LBS_DEB_CMD);
1063
1064         cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
1065         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1066         cmd->hdr.result = 0;
1067
1068         cmd->type = cpu_to_le16(type);
1069         cmd->action = cpu_to_le16(action);
1070
1071         ret = lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
1072
1073         lbs_deb_leave(LBS_DEB_CMD);
1074         return ret;
1075 }
1076
1077 int lbs_mesh_config_send(struct lbs_private *priv,
1078                          struct cmd_ds_mesh_config *cmd,
1079                          uint16_t action, uint16_t type)
1080 {
1081         int ret;
1082
1083         if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1084                 return -EOPNOTSUPP;
1085
1086         ret = __lbs_mesh_config_send(priv, cmd, action, type);
1087         return ret;
1088 }
1089
1090 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
1091  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
1092  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1093  * lbs_mesh_config_send.
1094  */
1095 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1096 {
1097         struct cmd_ds_mesh_config cmd;
1098         struct mrvl_meshie *ie;
1099
1100         memset(&cmd, 0, sizeof(cmd));
1101         cmd.channel = cpu_to_le16(chan);
1102         ie = (struct mrvl_meshie *)cmd.data;
1103
1104         switch (action) {
1105         case CMD_ACT_MESH_CONFIG_START:
1106                 ie->hdr.id = MFIE_TYPE_GENERIC;
1107                 ie->val.oui[0] = 0x00;
1108                 ie->val.oui[1] = 0x50;
1109                 ie->val.oui[2] = 0x43;
1110                 ie->val.type = MARVELL_MESH_IE_TYPE;
1111                 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1112                 ie->val.version = MARVELL_MESH_IE_VERSION;
1113                 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1114                 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1115                 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1116                 ie->val.mesh_id_len = priv->mesh_ssid_len;
1117                 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1118                 ie->hdr.len = sizeof(struct mrvl_meshie_val) -
1119                         IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1120                 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1121                 break;
1122         case CMD_ACT_MESH_CONFIG_STOP:
1123                 break;
1124         default:
1125                 return -1;
1126         }
1127         lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1128                     action, priv->mesh_tlv, chan,
1129                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1130
1131         return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1132 }
1133
1134 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1135                                 struct cmd_ds_command *cmd,
1136                                 u16 cmd_action)
1137 {
1138         struct cmd_ds_802_11_beacon_control
1139                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1140
1141         lbs_deb_enter(LBS_DEB_CMD);
1142         cmd->size =
1143             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1144                              + S_DS_GEN);
1145         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1146
1147         bcn_ctrl->action = cpu_to_le16(cmd_action);
1148         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1149         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1150
1151         lbs_deb_leave(LBS_DEB_CMD);
1152         return 0;
1153 }
1154
1155 static void lbs_queue_cmd(struct lbs_private *priv,
1156                           struct cmd_ctrl_node *cmdnode)
1157 {
1158         unsigned long flags;
1159         int addtail = 1;
1160
1161         lbs_deb_enter(LBS_DEB_HOST);
1162
1163         if (!cmdnode) {
1164                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1165                 goto done;
1166         }
1167         if (!cmdnode->cmdbuf->size) {
1168                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1169                 goto done;
1170         }
1171         cmdnode->result = 0;
1172
1173         /* Exit_PS command needs to be queued in the header always. */
1174         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1175                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1176
1177                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1178                         if (priv->psstate != PS_STATE_FULL_POWER)
1179                                 addtail = 0;
1180                 }
1181         }
1182
1183         spin_lock_irqsave(&priv->driver_lock, flags);
1184
1185         if (addtail)
1186                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1187         else
1188                 list_add(&cmdnode->list, &priv->cmdpendingq);
1189
1190         spin_unlock_irqrestore(&priv->driver_lock, flags);
1191
1192         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1193                      le16_to_cpu(cmdnode->cmdbuf->command));
1194
1195 done:
1196         lbs_deb_leave(LBS_DEB_HOST);
1197 }
1198
1199 static void lbs_submit_command(struct lbs_private *priv,
1200                                struct cmd_ctrl_node *cmdnode)
1201 {
1202         unsigned long flags;
1203         struct cmd_header *cmd;
1204         uint16_t cmdsize;
1205         uint16_t command;
1206         int timeo = 3 * HZ;
1207         int ret;
1208
1209         lbs_deb_enter(LBS_DEB_HOST);
1210
1211         cmd = cmdnode->cmdbuf;
1212
1213         spin_lock_irqsave(&priv->driver_lock, flags);
1214         priv->cur_cmd = cmdnode;
1215         priv->cur_cmd_retcode = 0;
1216         spin_unlock_irqrestore(&priv->driver_lock, flags);
1217
1218         cmdsize = le16_to_cpu(cmd->size);
1219         command = le16_to_cpu(cmd->command);
1220
1221         /* These commands take longer */
1222         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1223             command == CMD_802_11_AUTHENTICATE)
1224                 timeo = 5 * HZ;
1225
1226         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1227                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1228         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1229
1230         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1231
1232         if (ret) {
1233                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1234                 /* Let the timer kick in and retry, and potentially reset
1235                    the whole thing if the condition persists */
1236                 timeo = HZ/4;
1237         }
1238
1239         /* Setup the timer after transmit command */
1240         mod_timer(&priv->command_timer, jiffies + timeo);
1241
1242         lbs_deb_leave(LBS_DEB_HOST);
1243 }
1244
1245 /**
1246  *  This function inserts command node to cmdfreeq
1247  *  after cleans it. Requires priv->driver_lock held.
1248  */
1249 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1250                                          struct cmd_ctrl_node *cmdnode)
1251 {
1252         lbs_deb_enter(LBS_DEB_HOST);
1253
1254         if (!cmdnode)
1255                 goto out;
1256
1257         cmdnode->callback = NULL;
1258         cmdnode->callback_arg = 0;
1259
1260         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1261
1262         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1263  out:
1264         lbs_deb_leave(LBS_DEB_HOST);
1265 }
1266
1267 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1268         struct cmd_ctrl_node *ptempcmd)
1269 {
1270         unsigned long flags;
1271
1272         spin_lock_irqsave(&priv->driver_lock, flags);
1273         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1274         spin_unlock_irqrestore(&priv->driver_lock, flags);
1275 }
1276
1277 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1278                           int result)
1279 {
1280         if (cmd == priv->cur_cmd)
1281                 priv->cur_cmd_retcode = result;
1282
1283         cmd->result = result;
1284         cmd->cmdwaitqwoken = 1;
1285         wake_up_interruptible(&cmd->cmdwait_q);
1286
1287         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1288                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1289         priv->cur_cmd = NULL;
1290 }
1291
1292 int lbs_set_radio_control(struct lbs_private *priv)
1293 {
1294         int ret = 0;
1295         struct cmd_ds_802_11_radio_control cmd;
1296
1297         lbs_deb_enter(LBS_DEB_CMD);
1298
1299         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1300         cmd.action = cpu_to_le16(CMD_ACT_SET);
1301
1302         switch (priv->preamble) {
1303         case CMD_TYPE_SHORT_PREAMBLE:
1304                 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1305                 break;
1306
1307         case CMD_TYPE_LONG_PREAMBLE:
1308                 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1309                 break;
1310
1311         case CMD_TYPE_AUTO_PREAMBLE:
1312         default:
1313                 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1314                 break;
1315         }
1316
1317         if (priv->radioon)
1318                 cmd.control |= cpu_to_le16(TURN_ON_RF);
1319         else
1320                 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1321
1322         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1323                     priv->preamble);
1324
1325         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1326
1327         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1328         return ret;
1329 }
1330
1331 void lbs_set_mac_control(struct lbs_private *priv)
1332 {
1333         struct cmd_ds_mac_control cmd;
1334
1335         lbs_deb_enter(LBS_DEB_CMD);
1336
1337         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1338         cmd.action = cpu_to_le16(priv->mac_control);
1339         cmd.reserved = 0;
1340
1341         lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1342
1343         lbs_deb_leave(LBS_DEB_CMD);
1344 }
1345
1346 /**
1347  *  @brief This function prepare the command before send to firmware.
1348  *
1349  *  @param priv         A pointer to struct lbs_private structure
1350  *  @param cmd_no       command number
1351  *  @param cmd_action   command action: GET or SET
1352  *  @param wait_option  wait option: wait response or not
1353  *  @param cmd_oid      cmd oid: treated as sub command
1354  *  @param pdata_buf    A pointer to informaion buffer
1355  *  @return             0 or -1
1356  */
1357 int lbs_prepare_and_send_command(struct lbs_private *priv,
1358                           u16 cmd_no,
1359                           u16 cmd_action,
1360                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1361 {
1362         int ret = 0;
1363         struct cmd_ctrl_node *cmdnode;
1364         struct cmd_ds_command *cmdptr;
1365         unsigned long flags;
1366
1367         lbs_deb_enter(LBS_DEB_HOST);
1368
1369         if (!priv) {
1370                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1371                 ret = -1;
1372                 goto done;
1373         }
1374
1375         if (priv->surpriseremoved) {
1376                 lbs_deb_host("PREP_CMD: card removed\n");
1377                 ret = -1;
1378                 goto done;
1379         }
1380
1381         cmdnode = lbs_get_cmd_ctrl_node(priv);
1382
1383         if (cmdnode == NULL) {
1384                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1385
1386                 /* Wake up main thread to execute next command */
1387                 wake_up_interruptible(&priv->waitq);
1388                 ret = -1;
1389                 goto done;
1390         }
1391
1392         cmdnode->callback = NULL;
1393         cmdnode->callback_arg = (unsigned long)pdata_buf;
1394
1395         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1396
1397         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1398
1399         /* Set sequence number, command and INT option */
1400         priv->seqnum++;
1401         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1402
1403         cmdptr->command = cpu_to_le16(cmd_no);
1404         cmdptr->result = 0;
1405
1406         switch (cmd_no) {
1407         case CMD_802_11_PS_MODE:
1408                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1409                 break;
1410
1411         case CMD_802_11_ASSOCIATE:
1412         case CMD_802_11_REASSOCIATE:
1413                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1414                 break;
1415
1416         case CMD_802_11_AD_HOC_START:
1417                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1418                 break;
1419
1420         case CMD_802_11_RESET:
1421                 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1422                 break;
1423
1424         case CMD_802_11_AUTHENTICATE:
1425                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1426                 break;
1427
1428         case CMD_802_11_SNMP_MIB:
1429                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1430                                                cmd_action, cmd_oid, pdata_buf);
1431                 break;
1432
1433         case CMD_MAC_REG_ACCESS:
1434         case CMD_BBP_REG_ACCESS:
1435         case CMD_RF_REG_ACCESS:
1436                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1437                 break;
1438
1439         case CMD_802_11_MONITOR_MODE:
1440                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1441                                           cmd_action, pdata_buf);
1442                 break;
1443
1444         case CMD_802_11_AD_HOC_JOIN:
1445                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1446                 break;
1447
1448         case CMD_802_11_RSSI:
1449                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1450                 break;
1451
1452         case CMD_802_11_AD_HOC_STOP:
1453                 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1454                 break;
1455
1456         case CMD_802_11_SET_AFC:
1457         case CMD_802_11_GET_AFC:
1458
1459                 cmdptr->command = cpu_to_le16(cmd_no);
1460                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1461                                            S_DS_GEN);
1462
1463                 memmove(&cmdptr->params.afc,
1464                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1465
1466                 ret = 0;
1467                 goto done;
1468
1469         case CMD_802_11D_DOMAIN_INFO:
1470                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1471                                                    cmd_no, cmd_action);
1472                 break;
1473
1474         case CMD_802_11_TPC_CFG:
1475                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1476                 cmdptr->size =
1477                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1478                                      S_DS_GEN);
1479
1480                 memmove(&cmdptr->params.tpccfg,
1481                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1482
1483                 ret = 0;
1484                 break;
1485         case CMD_802_11_LED_GPIO_CTRL:
1486                 {
1487                         struct mrvlietypes_ledgpio *gpio =
1488                             (struct mrvlietypes_ledgpio*)
1489                             cmdptr->params.ledgpio.data;
1490
1491                         memmove(&cmdptr->params.ledgpio,
1492                                 pdata_buf,
1493                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1494
1495                         cmdptr->command =
1496                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1497
1498 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1499                         cmdptr->size =
1500                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1501                                 + S_DS_GEN
1502                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1503                         gpio->header.len = gpio->header.len;
1504
1505                         ret = 0;
1506                         break;
1507                 }
1508
1509         case CMD_BT_ACCESS:
1510                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1511                 break;
1512
1513         case CMD_FWT_ACCESS:
1514                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1515                 break;
1516
1517         case CMD_GET_TSF:
1518                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1519                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1520                                            S_DS_GEN);
1521                 ret = 0;
1522                 break;
1523         case CMD_802_11_BEACON_CTRL:
1524                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1525                 break;
1526         default:
1527                 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1528                 ret = -1;
1529                 break;
1530         }
1531
1532         /* return error, since the command preparation failed */
1533         if (ret != 0) {
1534                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1535                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1536                 ret = -1;
1537                 goto done;
1538         }
1539
1540         cmdnode->cmdwaitqwoken = 0;
1541
1542         lbs_queue_cmd(priv, cmdnode);
1543         wake_up_interruptible(&priv->waitq);
1544
1545         if (wait_option & CMD_OPTION_WAITFORRSP) {
1546                 lbs_deb_host("PREP_CMD: wait for response\n");
1547                 might_sleep();
1548                 wait_event_interruptible(cmdnode->cmdwait_q,
1549                                          cmdnode->cmdwaitqwoken);
1550         }
1551
1552         spin_lock_irqsave(&priv->driver_lock, flags);
1553         if (priv->cur_cmd_retcode) {
1554                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1555                        priv->cur_cmd_retcode);
1556                 priv->cur_cmd_retcode = 0;
1557                 ret = -1;
1558         }
1559         spin_unlock_irqrestore(&priv->driver_lock, flags);
1560
1561 done:
1562         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1563         return ret;
1564 }
1565
1566 /**
1567  *  @brief This function allocates the command buffer and link
1568  *  it to command free queue.
1569  *
1570  *  @param priv         A pointer to struct lbs_private structure
1571  *  @return             0 or -1
1572  */
1573 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1574 {
1575         int ret = 0;
1576         u32 bufsize;
1577         u32 i;
1578         struct cmd_ctrl_node *cmdarray;
1579
1580         lbs_deb_enter(LBS_DEB_HOST);
1581
1582         /* Allocate and initialize the command array */
1583         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1584         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1585                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1586                 ret = -1;
1587                 goto done;
1588         }
1589         priv->cmd_array = cmdarray;
1590
1591         /* Allocate and initialize each command buffer in the command array */
1592         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1593                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1594                 if (!cmdarray[i].cmdbuf) {
1595                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1596                         ret = -1;
1597                         goto done;
1598                 }
1599         }
1600
1601         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1602                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1603                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1604         }
1605         ret = 0;
1606
1607 done:
1608         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1609         return ret;
1610 }
1611
1612 /**
1613  *  @brief This function frees the command buffer.
1614  *
1615  *  @param priv         A pointer to struct lbs_private structure
1616  *  @return             0 or -1
1617  */
1618 int lbs_free_cmd_buffer(struct lbs_private *priv)
1619 {
1620         struct cmd_ctrl_node *cmdarray;
1621         unsigned int i;
1622
1623         lbs_deb_enter(LBS_DEB_HOST);
1624
1625         /* need to check if cmd array is allocated or not */
1626         if (priv->cmd_array == NULL) {
1627                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1628                 goto done;
1629         }
1630
1631         cmdarray = priv->cmd_array;
1632
1633         /* Release shared memory buffers */
1634         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1635                 if (cmdarray[i].cmdbuf) {
1636                         kfree(cmdarray[i].cmdbuf);
1637                         cmdarray[i].cmdbuf = NULL;
1638                 }
1639         }
1640
1641         /* Release cmd_ctrl_node */
1642         if (priv->cmd_array) {
1643                 kfree(priv->cmd_array);
1644                 priv->cmd_array = NULL;
1645         }
1646
1647 done:
1648         lbs_deb_leave(LBS_DEB_HOST);
1649         return 0;
1650 }
1651
1652 /**
1653  *  @brief This function gets a free command node if available in
1654  *  command free queue.
1655  *
1656  *  @param priv         A pointer to struct lbs_private structure
1657  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1658  */
1659 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1660 {
1661         struct cmd_ctrl_node *tempnode;
1662         unsigned long flags;
1663
1664         lbs_deb_enter(LBS_DEB_HOST);
1665
1666         if (!priv)
1667                 return NULL;
1668
1669         spin_lock_irqsave(&priv->driver_lock, flags);
1670
1671         if (!list_empty(&priv->cmdfreeq)) {
1672                 tempnode = list_first_entry(&priv->cmdfreeq,
1673                                             struct cmd_ctrl_node, list);
1674                 list_del(&tempnode->list);
1675         } else {
1676                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1677                 tempnode = NULL;
1678         }
1679
1680         spin_unlock_irqrestore(&priv->driver_lock, flags);
1681
1682         lbs_deb_leave(LBS_DEB_HOST);
1683         return tempnode;
1684 }
1685
1686 /**
1687  *  @brief This function executes next command in command
1688  *  pending queue. It will put fimware back to PS mode
1689  *  if applicable.
1690  *
1691  *  @param priv     A pointer to struct lbs_private structure
1692  *  @return        0 or -1
1693  */
1694 int lbs_execute_next_command(struct lbs_private *priv)
1695 {
1696         struct cmd_ctrl_node *cmdnode = NULL;
1697         struct cmd_header *cmd;
1698         unsigned long flags;
1699         int ret = 0;
1700
1701         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1702          * only caller to us is lbs_thread() and we get even when a
1703          * data packet is received */
1704         lbs_deb_enter(LBS_DEB_THREAD);
1705
1706         spin_lock_irqsave(&priv->driver_lock, flags);
1707
1708         if (priv->cur_cmd) {
1709                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1710                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1711                 ret = -1;
1712                 goto done;
1713         }
1714
1715         if (!list_empty(&priv->cmdpendingq)) {
1716                 cmdnode = list_first_entry(&priv->cmdpendingq,
1717                                            struct cmd_ctrl_node, list);
1718         }
1719
1720         spin_unlock_irqrestore(&priv->driver_lock, flags);
1721
1722         if (cmdnode) {
1723                 cmd = cmdnode->cmdbuf;
1724
1725                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1726                         if ((priv->psstate == PS_STATE_SLEEP) ||
1727                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1728                                 lbs_deb_host(
1729                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1730                                        le16_to_cpu(cmd->command),
1731                                        priv->psstate);
1732                                 ret = -1;
1733                                 goto done;
1734                         }
1735                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1736                                      "0x%04x in psstate %d\n",
1737                                      le16_to_cpu(cmd->command), priv->psstate);
1738                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1739                         /*
1740                          * 1. Non-PS command:
1741                          * Queue it. set needtowakeup to TRUE if current state
1742                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1743                          * 2. PS command but not Exit_PS:
1744                          * Ignore it.
1745                          * 3. PS command Exit_PS:
1746                          * Set needtowakeup to TRUE if current state is SLEEP,
1747                          * otherwise send this command down to firmware
1748                          * immediately.
1749                          */
1750                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1751                                 /*  Prepare to send Exit PS,
1752                                  *  this non PS command will be sent later */
1753                                 if ((priv->psstate == PS_STATE_SLEEP)
1754                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1755                                     ) {
1756                                         /* w/ new scheme, it will not reach here.
1757                                            since it is blocked in main_thread. */
1758                                         priv->needtowakeup = 1;
1759                                 } else
1760                                         lbs_ps_wakeup(priv, 0);
1761
1762                                 ret = 0;
1763                                 goto done;
1764                         } else {
1765                                 /*
1766                                  * PS command. Ignore it if it is not Exit_PS.
1767                                  * otherwise send it down immediately.
1768                                  */
1769                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1770
1771                                 lbs_deb_host(
1772                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1773                                        psm->action);
1774                                 if (psm->action !=
1775                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1776                                         lbs_deb_host(
1777                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1778                                         list_del(&cmdnode->list);
1779                                         spin_lock_irqsave(&priv->driver_lock, flags);
1780                                         lbs_complete_command(priv, cmdnode, 0);
1781                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1782
1783                                         ret = 0;
1784                                         goto done;
1785                                 }
1786
1787                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1788                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1789                                         lbs_deb_host(
1790                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1791                                         list_del(&cmdnode->list);
1792                                         spin_lock_irqsave(&priv->driver_lock, flags);
1793                                         lbs_complete_command(priv, cmdnode, 0);
1794                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1795                                         priv->needtowakeup = 1;
1796
1797                                         ret = 0;
1798                                         goto done;
1799                                 }
1800
1801                                 lbs_deb_host(
1802                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1803                         }
1804                 }
1805                 list_del(&cmdnode->list);
1806                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1807                             le16_to_cpu(cmd->command));
1808                 lbs_submit_command(priv, cmdnode);
1809         } else {
1810                 /*
1811                  * check if in power save mode, if yes, put the device back
1812                  * to PS mode
1813                  */
1814                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1815                     (priv->psstate == PS_STATE_FULL_POWER) &&
1816                     ((priv->connect_status == LBS_CONNECTED) ||
1817                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1818                         if (priv->secinfo.WPAenabled ||
1819                             priv->secinfo.WPA2enabled) {
1820                                 /* check for valid WPA group keys */
1821                                 if (priv->wpa_mcast_key.len ||
1822                                     priv->wpa_unicast_key.len) {
1823                                         lbs_deb_host(
1824                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1825                                                " go back to PS_SLEEP");
1826                                         lbs_ps_sleep(priv, 0);
1827                                 }
1828                         } else {
1829                                 lbs_deb_host(
1830                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1831                                        "go back to PS_SLEEP");
1832                                 lbs_ps_sleep(priv, 0);
1833                         }
1834                 }
1835         }
1836
1837         ret = 0;
1838 done:
1839         lbs_deb_leave(LBS_DEB_THREAD);
1840         return ret;
1841 }
1842
1843 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1844 {
1845         union iwreq_data iwrq;
1846         u8 buf[50];
1847
1848         lbs_deb_enter(LBS_DEB_WEXT);
1849
1850         memset(&iwrq, 0, sizeof(union iwreq_data));
1851         memset(buf, 0, sizeof(buf));
1852
1853         snprintf(buf, sizeof(buf) - 1, "%s", str);
1854
1855         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1856
1857         /* Send Event to upper layer */
1858         lbs_deb_wext("event indication string %s\n", (char *)buf);
1859         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1860         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1861
1862         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1863
1864         lbs_deb_leave(LBS_DEB_WEXT);
1865 }
1866
1867 static void lbs_send_confirmsleep(struct lbs_private *priv)
1868 {
1869         unsigned long flags;
1870         int ret;
1871
1872         lbs_deb_enter(LBS_DEB_HOST);
1873         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1874                 sizeof(confirm_sleep));
1875
1876         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1877                 sizeof(confirm_sleep));
1878         if (ret) {
1879                 lbs_pr_alert("confirm_sleep failed\n");
1880                 goto out;
1881         }
1882
1883         spin_lock_irqsave(&priv->driver_lock, flags);
1884
1885         /* We don't get a response on the sleep-confirmation */
1886         priv->dnld_sent = DNLD_RES_RECEIVED;
1887
1888         /* If nothing to do, go back to sleep (?) */
1889         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1890                 priv->psstate = PS_STATE_SLEEP;
1891
1892         spin_unlock_irqrestore(&priv->driver_lock, flags);
1893
1894 out:
1895         lbs_deb_leave(LBS_DEB_HOST);
1896 }
1897
1898 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1899 {
1900         lbs_deb_enter(LBS_DEB_HOST);
1901
1902         /*
1903          * PS is currently supported only in Infrastructure mode
1904          * Remove this check if it is to be supported in IBSS mode also
1905          */
1906
1907         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1908                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1909
1910         lbs_deb_leave(LBS_DEB_HOST);
1911 }
1912
1913 /**
1914  *  @brief This function sends Exit_PS command to firmware.
1915  *
1916  *  @param priv         A pointer to struct lbs_private structure
1917  *  @param wait_option  wait response or not
1918  *  @return             n/a
1919  */
1920 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1921 {
1922         __le32 Localpsmode;
1923
1924         lbs_deb_enter(LBS_DEB_HOST);
1925
1926         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1927
1928         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1929                               CMD_SUBCMD_EXIT_PS,
1930                               wait_option, 0, &Localpsmode);
1931
1932         lbs_deb_leave(LBS_DEB_HOST);
1933 }
1934
1935 /**
1936  *  @brief This function checks condition and prepares to
1937  *  send sleep confirm command to firmware if ok.
1938  *
1939  *  @param priv         A pointer to struct lbs_private structure
1940  *  @param psmode       Power Saving mode
1941  *  @return             n/a
1942  */
1943 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1944 {
1945         unsigned long flags =0;
1946         int allowed = 1;
1947
1948         lbs_deb_enter(LBS_DEB_HOST);
1949
1950         spin_lock_irqsave(&priv->driver_lock, flags);
1951         if (priv->dnld_sent) {
1952                 allowed = 0;
1953                 lbs_deb_host("dnld_sent was set\n");
1954         }
1955
1956         /* In-progress command? */
1957         if (priv->cur_cmd) {
1958                 allowed = 0;
1959                 lbs_deb_host("cur_cmd was set\n");
1960         }
1961
1962         /* Pending events or command responses? */
1963         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1964                 allowed = 0;
1965                 lbs_deb_host("pending events or command responses\n");
1966         }
1967         spin_unlock_irqrestore(&priv->driver_lock, flags);
1968
1969         if (allowed) {
1970                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1971                 lbs_send_confirmsleep(priv);
1972         } else {
1973                 lbs_deb_host("sleep confirm has been delayed\n");
1974         }
1975
1976         lbs_deb_leave(LBS_DEB_HOST);
1977 }
1978
1979
1980 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1981         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1982         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1983         unsigned long callback_arg)
1984 {
1985         struct cmd_ctrl_node *cmdnode;
1986
1987         lbs_deb_enter(LBS_DEB_HOST);
1988
1989         if (priv->surpriseremoved) {
1990                 lbs_deb_host("PREP_CMD: card removed\n");
1991                 cmdnode = ERR_PTR(-ENOENT);
1992                 goto done;
1993         }
1994
1995         cmdnode = lbs_get_cmd_ctrl_node(priv);
1996         if (cmdnode == NULL) {
1997                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1998
1999                 /* Wake up main thread to execute next command */
2000                 wake_up_interruptible(&priv->waitq);
2001                 cmdnode = ERR_PTR(-ENOBUFS);
2002                 goto done;
2003         }
2004
2005         cmdnode->callback = callback;
2006         cmdnode->callback_arg = callback_arg;
2007
2008         /* Copy the incoming command to the buffer */
2009         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2010
2011         /* Set sequence number, clean result, move to buffer */
2012         priv->seqnum++;
2013         cmdnode->cmdbuf->command = cpu_to_le16(command);
2014         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2015         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2016         cmdnode->cmdbuf->result  = 0;
2017
2018         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2019
2020         cmdnode->cmdwaitqwoken = 0;
2021         lbs_queue_cmd(priv, cmdnode);
2022         wake_up_interruptible(&priv->waitq);
2023
2024  done:
2025         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2026         return cmdnode;
2027 }
2028
2029 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2030         struct cmd_header *in_cmd, int in_cmd_size)
2031 {
2032         lbs_deb_enter(LBS_DEB_CMD);
2033         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2034                 lbs_cmd_async_callback, 0);
2035         lbs_deb_leave(LBS_DEB_CMD);
2036 }
2037
2038 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2039               struct cmd_header *in_cmd, int in_cmd_size,
2040               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2041               unsigned long callback_arg)
2042 {
2043         struct cmd_ctrl_node *cmdnode;
2044         unsigned long flags;
2045         int ret = 0;
2046
2047         lbs_deb_enter(LBS_DEB_HOST);
2048
2049         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2050                                   callback, callback_arg);
2051         if (IS_ERR(cmdnode)) {
2052                 ret = PTR_ERR(cmdnode);
2053                 goto done;
2054         }
2055
2056         might_sleep();
2057         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2058
2059         spin_lock_irqsave(&priv->driver_lock, flags);
2060         ret = cmdnode->result;
2061         if (ret)
2062                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2063                             command, ret);
2064
2065         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2066         spin_unlock_irqrestore(&priv->driver_lock, flags);
2067
2068 done:
2069         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2070         return ret;
2071 }
2072 EXPORT_SYMBOL_GPL(__lbs_cmd);
2073
2074