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 static int lbs_cmd_802_11_rf_tx_power(struct cmd_ds_command *cmd,
 618                                        u16 cmd_action, void *pdata_buf)
 619 {
 620
 621         struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
 622
 623         lbs_deb_enter(LBS_DEB_CMD);
 624
 625         cmd->size =
 626             cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
 627         cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
 628         prtp->action = cpu_to_le16(cmd_action);
 629
 630         lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
 631                     le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
 632                     le16_to_cpu(prtp->action));
 633
 634         switch (cmd_action) {
 635         case CMD_ACT_TX_POWER_OPT_GET:
 636                 prtp->action = cpu_to_le16(CMD_ACT_GET);
 637                 prtp->currentlevel = 0;
 638                 break;
 639
 640         case CMD_ACT_TX_POWER_OPT_SET_HIGH:
 641                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 642                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
 643                 break;
 644
 645         case CMD_ACT_TX_POWER_OPT_SET_MID:
 646                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 647                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
 648                 break;
 649
 650         case CMD_ACT_TX_POWER_OPT_SET_LOW:
 651                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 652                 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
 653                 break;
 654         }
 655
 656         lbs_deb_leave(LBS_DEB_CMD);
 657         return 0;
 658 }
 659
 660 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 661                                       u16 cmd_action, void *pdata_buf)
 662 {
 663         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 664
 665         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 666         cmd->size =
 667             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 668                              S_DS_GEN);
 669
 670         monitor->action = cpu_to_le16(cmd_action);
 671         if (cmd_action == CMD_ACT_SET) {
 672                 monitor->mode =
 673                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 674         }
 675
 676         return 0;
 677 }
 678
 679 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
 680 {
 681 /*              Bit     Rate
 682 *               15:13 Reserved
 683 *               12    54 Mbps
 684 *               11    48 Mbps
 685 *               10    36 Mbps
 686 *               9     24 Mbps
 687 *               8     18 Mbps
 688 *               7     12 Mbps
 689 *               6     9 Mbps
 690 *               5     6 Mbps
 691 *               4     Reserved
 692 *               3     11 Mbps
 693 *               2     5.5 Mbps
 694 *               1     2 Mbps
 695 *               0     1 Mbps
 696 **/
 697
 698         uint16_t ratemask;
 699         int i = lbs_data_rate_to_fw_index(rate);
 700         if (lower_rates_ok)
 701                 ratemask = (0x1fef >> (12 - i));
 702         else
 703                 ratemask = (1 << i);
 704         return cpu_to_le16(ratemask);
 705 }
 706
 707 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 708                                       uint16_t cmd_action)
 709 {
 710         struct cmd_ds_802_11_rate_adapt_rateset cmd;
 711         int ret;
 712
 713         lbs_deb_enter(LBS_DEB_CMD);
 714
 715         if (!priv->cur_rate && !priv->enablehwauto)
 716                 return -EINVAL;
 717
 718         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 719
 720         cmd.action = cpu_to_le16(cmd_action);
 721         cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
 722         cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
 723         ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
 724         if (!ret && cmd_action == CMD_ACT_GET) {
 725                 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
 726                 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
 727         }
 728
 729         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 730         return ret;
 731 }
 732 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
 733
 734 /**
 735  *  @brief Set the data rate
 736  *
 737  *  @param priv         A pointer to struct lbs_private structure
 738  *  @param rate         The desired data rate, or 0 to clear a locked rate
 739  *
 740  *  @return             0 on success, error on failure
 741  */
 742 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 743 {
 744         struct cmd_ds_802_11_data_rate cmd;
 745         int ret = 0;
 746
 747         lbs_deb_enter(LBS_DEB_CMD);
 748
 749         memset(&cmd, 0, sizeof(cmd));
 750         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 751
 752         if (rate > 0) {
 753                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 754                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 755                 if (cmd.rates[0] == 0) {
 756                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 757                                     " 0x%02X\n", rate);
 758                         ret = 0;
 759                         goto out;
 760                 }
 761                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 762         } else {
 763                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 764                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 765         }
 766
 767         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 768         if (ret)
 769                 goto out;
 770
 771         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 772
 773         /* FIXME: get actual rates FW can do if this command actually returns
 774          * all data rates supported.
 775          */
 776         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 777         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 778
 779 out:
 780         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 781         return ret;
 782 }
 783
 784 /**
 785  *  @brief Get the radio channel
 786  *
 787  *  @param priv         A pointer to struct lbs_private structure
 788  *
 789  *  @return             The channel on success, error on failure
 790  */
 791 int lbs_get_channel(struct lbs_private *priv)
 792 {
 793         struct cmd_ds_802_11_rf_channel cmd;
 794         int ret = 0;
 795
 796         lbs_deb_enter(LBS_DEB_CMD);
 797
 798         memset(&cmd, 0, sizeof(cmd));
 799         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 800         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 801
 802         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 803         if (ret)
 804                 goto out;
 805
 806         ret = le16_to_cpu(cmd.channel);
 807         lbs_deb_cmd("current radio channel is %d\n", ret);
 808
 809 out:
 810         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 811         return ret;
 812 }
 813
 814 int lbs_update_channel(struct lbs_private *priv)
 815 {
 816         int ret;
 817
 818         /* the channel in f/w could be out of sync; get the current channel */
 819         lbs_deb_enter(LBS_DEB_ASSOC);
 820
 821         ret = lbs_get_channel(priv);
 822         if (ret > 0) {
 823                 priv->curbssparams.channel = ret;
 824                 ret = 0;
 825         }
 826         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 827         return ret;
 828 }
 829
 830 /**
 831  *  @brief Set the radio channel
 832  *
 833  *  @param priv         A pointer to struct lbs_private structure
 834  *  @param channel      The desired channel, or 0 to clear a locked channel
 835  *
 836  *  @return             0 on success, error on failure
 837  */
 838 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 839 {
 840         struct cmd_ds_802_11_rf_channel cmd;
 841         u8 old_channel = priv->curbssparams.channel;
 842         int ret = 0;
 843
 844         lbs_deb_enter(LBS_DEB_CMD);
 845
 846         memset(&cmd, 0, sizeof(cmd));
 847         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 848         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 849         cmd.channel = cpu_to_le16(channel);
 850
 851         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 852         if (ret)
 853                 goto out;
 854
 855         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 856         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 857                 priv->curbssparams.channel);
 858
 859 out:
 860         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 861         return ret;
 862 }
 863
 864 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 865                                 struct cmd_ds_command *cmd)
 866 {
 867
 868         lbs_deb_enter(LBS_DEB_CMD);
 869         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 870         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 871         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 872
 873         /* reset Beacon SNR/NF/RSSI values */
 874         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 875         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 876         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 877         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 878         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 879         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 880
 881         lbs_deb_leave(LBS_DEB_CMD);
 882         return 0;
 883 }
 884
 885 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 886                                u8 cmd_action, void *pdata_buf)
 887 {
 888         struct lbs_offset_value *offval;
 889
 890         lbs_deb_enter(LBS_DEB_CMD);
 891
 892         offval = (struct lbs_offset_value *)pdata_buf;
 893
 894         switch (le16_to_cpu(cmdptr->command)) {
 895         case CMD_MAC_REG_ACCESS:
 896                 {
 897                         struct cmd_ds_mac_reg_access *macreg;
 898
 899                         cmdptr->size =
 900                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 901                                         + S_DS_GEN);
 902                         macreg =
 903                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 904                             macreg;
 905
 906                         macreg->action = cpu_to_le16(cmd_action);
 907                         macreg->offset = cpu_to_le16((u16) offval->offset);
 908                         macreg->value = cpu_to_le32(offval->value);
 909
 910                         break;
 911                 }
 912
 913         case CMD_BBP_REG_ACCESS:
 914                 {
 915                         struct cmd_ds_bbp_reg_access *bbpreg;
 916
 917                         cmdptr->size =
 918                             cpu_to_le16(sizeof
 919                                              (struct cmd_ds_bbp_reg_access)
 920                                              + S_DS_GEN);
 921                         bbpreg =
 922                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 923                             bbpreg;
 924
 925                         bbpreg->action = cpu_to_le16(cmd_action);
 926                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 927                         bbpreg->value = (u8) offval->value;
 928
 929                         break;
 930                 }
 931
 932         case CMD_RF_REG_ACCESS:
 933                 {
 934                         struct cmd_ds_rf_reg_access *rfreg;
 935
 936                         cmdptr->size =
 937                             cpu_to_le16(sizeof
 938                                              (struct cmd_ds_rf_reg_access) +
 939                                              S_DS_GEN);
 940                         rfreg =
 941                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 942                             rfreg;
 943
 944                         rfreg->action = cpu_to_le16(cmd_action);
 945                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 946                         rfreg->value = (u8) offval->value;
 947
 948                         break;
 949                 }
 950
 951         default:
 952                 break;
 953         }
 954
 955         lbs_deb_leave(LBS_DEB_CMD);
 956         return 0;
 957 }
 958
 959 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 960                                u16 cmd_action, void *pdata_buf)
 961 {
 962         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 963         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 964
 965         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 966         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 967         cmd->result = 0;
 968         bt_access->action = cpu_to_le16(cmd_action);
 969
 970         switch (cmd_action) {
 971         case CMD_ACT_BT_ACCESS_ADD:
 972                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 973                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 974                 break;
 975         case CMD_ACT_BT_ACCESS_DEL:
 976                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 977                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 978                 break;
 979         case CMD_ACT_BT_ACCESS_LIST:
 980                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 981                 break;
 982         case CMD_ACT_BT_ACCESS_RESET:
 983                 break;
 984         case CMD_ACT_BT_ACCESS_SET_INVERT:
 985                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 986                 break;
 987         case CMD_ACT_BT_ACCESS_GET_INVERT:
 988                 break;
 989         default:
 990                 break;
 991         }
 992         lbs_deb_leave(LBS_DEB_CMD);
 993         return 0;
 994 }
 995
 996 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
 997                                u16 cmd_action, void *pdata_buf)
 998 {
 999         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1000         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1001
1002         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1003         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1004         cmd->result = 0;
1005
1006         if (pdata_buf)
1007                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1008         else
1009                 memset(fwt_access, 0, sizeof(*fwt_access));
1010
1011         fwt_access->action = cpu_to_le16(cmd_action);
1012
1013         lbs_deb_leave(LBS_DEB_CMD);
1014         return 0;
1015 }
1016
1017 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1018                     struct cmd_ds_mesh_access *cmd)
1019 {
1020         int ret;
1021
1022         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1023
1024         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1025         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1026         cmd->hdr.result = 0;
1027
1028         cmd->action = cpu_to_le16(cmd_action);
1029
1030         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1031
1032         lbs_deb_leave(LBS_DEB_CMD);
1033         return ret;
1034 }
1035
1036 int lbs_mesh_config_send(struct lbs_private *priv,
1037                          struct cmd_ds_mesh_config *cmd,
1038                          uint16_t action, uint16_t type)
1039 {
1040         int ret;
1041
1042         lbs_deb_enter(LBS_DEB_CMD);
1043
1044         cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
1045         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1046         cmd->hdr.result = 0;
1047
1048         cmd->type = cpu_to_le16(type);
1049         cmd->action = cpu_to_le16(action);
1050
1051         ret = lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
1052
1053         lbs_deb_leave(LBS_DEB_CMD);
1054         return ret;
1055 }
1056
1057 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
1058  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
1059  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1060  * lbs_mesh_config_send.
1061  */
1062 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1063 {
1064         struct cmd_ds_mesh_config cmd;
1065         struct mrvl_meshie *ie;
1066
1067         memset(&cmd, 0, sizeof(cmd));
1068         cmd.channel = cpu_to_le16(chan);
1069         ie = (struct mrvl_meshie *)cmd.data;
1070
1071         switch (action) {
1072         case CMD_ACT_MESH_CONFIG_START:
1073                 ie->hdr.id = MFIE_TYPE_GENERIC;
1074                 ie->val.oui[0] = 0x00;
1075                 ie->val.oui[1] = 0x50;
1076                 ie->val.oui[2] = 0x43;
1077                 ie->val.type = MARVELL_MESH_IE_TYPE;
1078                 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1079                 ie->val.version = MARVELL_MESH_IE_VERSION;
1080                 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1081                 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1082                 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1083                 ie->val.mesh_id_len = priv->mesh_ssid_len;
1084                 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1085                 ie->hdr.len = sizeof(struct mrvl_meshie_val) -
1086                         IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1087                 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1088                 break;
1089         case CMD_ACT_MESH_CONFIG_STOP:
1090                 break;
1091         default:
1092                 return -1;
1093         }
1094         lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1095                     action, priv->mesh_tlv, chan,
1096                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1097
1098         return lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1099 }
1100
1101 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1102                                 struct cmd_ds_command *cmd,
1103                                 u16 cmd_action)
1104 {
1105         struct cmd_ds_802_11_beacon_control
1106                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1107
1108         lbs_deb_enter(LBS_DEB_CMD);
1109         cmd->size =
1110             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1111                              + S_DS_GEN);
1112         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1113
1114         bcn_ctrl->action = cpu_to_le16(cmd_action);
1115         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1116         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1117
1118         lbs_deb_leave(LBS_DEB_CMD);
1119         return 0;
1120 }
1121
1122 static void lbs_queue_cmd(struct lbs_private *priv,
1123                           struct cmd_ctrl_node *cmdnode)
1124 {
1125         unsigned long flags;
1126         int addtail = 1;
1127
1128         lbs_deb_enter(LBS_DEB_HOST);
1129
1130         if (!cmdnode) {
1131                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1132                 goto done;
1133         }
1134         if (!cmdnode->cmdbuf->size) {
1135                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1136                 goto done;
1137         }
1138         cmdnode->result = 0;
1139
1140         /* Exit_PS command needs to be queued in the header always. */
1141         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1142                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1143
1144                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1145                         if (priv->psstate != PS_STATE_FULL_POWER)
1146                                 addtail = 0;
1147                 }
1148         }
1149
1150         spin_lock_irqsave(&priv->driver_lock, flags);
1151
1152         if (addtail)
1153                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1154         else
1155                 list_add(&cmdnode->list, &priv->cmdpendingq);
1156
1157         spin_unlock_irqrestore(&priv->driver_lock, flags);
1158
1159         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1160                      le16_to_cpu(cmdnode->cmdbuf->command));
1161
1162 done:
1163         lbs_deb_leave(LBS_DEB_HOST);
1164 }
1165
1166 static void lbs_submit_command(struct lbs_private *priv,
1167                                struct cmd_ctrl_node *cmdnode)
1168 {
1169         unsigned long flags;
1170         struct cmd_header *cmd;
1171         uint16_t cmdsize;
1172         uint16_t command;
1173         int timeo = 3 * HZ;
1174         int ret;
1175
1176         lbs_deb_enter(LBS_DEB_HOST);
1177
1178         cmd = cmdnode->cmdbuf;
1179
1180         spin_lock_irqsave(&priv->driver_lock, flags);
1181         priv->cur_cmd = cmdnode;
1182         priv->cur_cmd_retcode = 0;
1183         spin_unlock_irqrestore(&priv->driver_lock, flags);
1184
1185         cmdsize = le16_to_cpu(cmd->size);
1186         command = le16_to_cpu(cmd->command);
1187
1188         /* These commands take longer */
1189         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1190             command == CMD_802_11_AUTHENTICATE)
1191                 timeo = 5 * HZ;
1192
1193         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1194                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1195         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1196
1197         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1198
1199         if (ret) {
1200                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1201                 /* Let the timer kick in and retry, and potentially reset
1202                    the whole thing if the condition persists */
1203                 timeo = HZ/4;
1204         }
1205
1206         /* Setup the timer after transmit command */
1207         mod_timer(&priv->command_timer, jiffies + timeo);
1208
1209         lbs_deb_leave(LBS_DEB_HOST);
1210 }
1211
1212 /**
1213  *  This function inserts command node to cmdfreeq
1214  *  after cleans it. Requires priv->driver_lock held.
1215  */
1216 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1217                                          struct cmd_ctrl_node *cmdnode)
1218 {
1219         lbs_deb_enter(LBS_DEB_HOST);
1220
1221         if (!cmdnode)
1222                 goto out;
1223
1224         cmdnode->callback = NULL;
1225         cmdnode->callback_arg = 0;
1226
1227         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1228
1229         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1230  out:
1231         lbs_deb_leave(LBS_DEB_HOST);
1232 }
1233
1234 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1235         struct cmd_ctrl_node *ptempcmd)
1236 {
1237         unsigned long flags;
1238
1239         spin_lock_irqsave(&priv->driver_lock, flags);
1240         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1241         spin_unlock_irqrestore(&priv->driver_lock, flags);
1242 }
1243
1244 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1245                           int result)
1246 {
1247         if (cmd == priv->cur_cmd)
1248                 priv->cur_cmd_retcode = result;
1249
1250         cmd->result = result;
1251         cmd->cmdwaitqwoken = 1;
1252         wake_up_interruptible(&cmd->cmdwait_q);
1253
1254         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1255                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1256         priv->cur_cmd = NULL;
1257 }
1258
1259 int lbs_set_radio_control(struct lbs_private *priv)
1260 {
1261         int ret = 0;
1262         struct cmd_ds_802_11_radio_control cmd;
1263
1264         lbs_deb_enter(LBS_DEB_CMD);
1265
1266         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1267         cmd.action = cpu_to_le16(CMD_ACT_SET);
1268
1269         switch (priv->preamble) {
1270         case CMD_TYPE_SHORT_PREAMBLE:
1271                 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1272                 break;
1273
1274         case CMD_TYPE_LONG_PREAMBLE:
1275                 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1276                 break;
1277
1278         case CMD_TYPE_AUTO_PREAMBLE:
1279         default:
1280                 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1281                 break;
1282         }
1283
1284         if (priv->radioon)
1285                 cmd.control |= cpu_to_le16(TURN_ON_RF);
1286         else
1287                 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1288
1289         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1290                     priv->preamble);
1291
1292         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1293
1294         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1295         return ret;
1296 }
1297
1298 void lbs_set_mac_control(struct lbs_private *priv)
1299 {
1300         struct cmd_ds_mac_control cmd;
1301
1302         lbs_deb_enter(LBS_DEB_CMD);
1303
1304         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1305         cmd.action = cpu_to_le16(priv->mac_control);
1306         cmd.reserved = 0;
1307
1308         lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1309
1310         lbs_deb_leave(LBS_DEB_CMD);
1311 }
1312
1313 /**
1314  *  @brief This function prepare the command before send to firmware.
1315  *
1316  *  @param priv         A pointer to struct lbs_private structure
1317  *  @param cmd_no       command number
1318  *  @param cmd_action   command action: GET or SET
1319  *  @param wait_option  wait option: wait response or not
1320  *  @param cmd_oid      cmd oid: treated as sub command
1321  *  @param pdata_buf    A pointer to informaion buffer
1322  *  @return             0 or -1
1323  */
1324 int lbs_prepare_and_send_command(struct lbs_private *priv,
1325                           u16 cmd_no,
1326                           u16 cmd_action,
1327                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1328 {
1329         int ret = 0;
1330         struct cmd_ctrl_node *cmdnode;
1331         struct cmd_ds_command *cmdptr;
1332         unsigned long flags;
1333
1334         lbs_deb_enter(LBS_DEB_HOST);
1335
1336         if (!priv) {
1337                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1338                 ret = -1;
1339                 goto done;
1340         }
1341
1342         if (priv->surpriseremoved) {
1343                 lbs_deb_host("PREP_CMD: card removed\n");
1344                 ret = -1;
1345                 goto done;
1346         }
1347
1348         cmdnode = lbs_get_cmd_ctrl_node(priv);
1349
1350         if (cmdnode == NULL) {
1351                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1352
1353                 /* Wake up main thread to execute next command */
1354                 wake_up_interruptible(&priv->waitq);
1355                 ret = -1;
1356                 goto done;
1357         }
1358
1359         cmdnode->callback = NULL;
1360         cmdnode->callback_arg = (unsigned long)pdata_buf;
1361
1362         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1363
1364         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1365
1366         /* Set sequence number, command and INT option */
1367         priv->seqnum++;
1368         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1369
1370         cmdptr->command = cpu_to_le16(cmd_no);
1371         cmdptr->result = 0;
1372
1373         switch (cmd_no) {
1374         case CMD_802_11_PS_MODE:
1375                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1376                 break;
1377
1378         case CMD_802_11_ASSOCIATE:
1379         case CMD_802_11_REASSOCIATE:
1380                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1381                 break;
1382
1383         case CMD_802_11_DEAUTHENTICATE:
1384                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1385                 break;
1386
1387         case CMD_802_11_AD_HOC_START:
1388                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1389                 break;
1390
1391         case CMD_802_11_RESET:
1392                 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1393                 break;
1394
1395         case CMD_802_11_AUTHENTICATE:
1396                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1397                 break;
1398
1399         case CMD_802_11_SNMP_MIB:
1400                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1401                                                cmd_action, cmd_oid, pdata_buf);
1402                 break;
1403
1404         case CMD_MAC_REG_ACCESS:
1405         case CMD_BBP_REG_ACCESS:
1406         case CMD_RF_REG_ACCESS:
1407                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1408                 break;
1409
1410         case CMD_802_11_RF_TX_POWER:
1411                 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1412                                                  cmd_action, pdata_buf);
1413                 break;
1414
1415         case CMD_802_11_MONITOR_MODE:
1416                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1417                                           cmd_action, pdata_buf);
1418                 break;
1419
1420         case CMD_802_11_AD_HOC_JOIN:
1421                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1422                 break;
1423
1424         case CMD_802_11_RSSI:
1425                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1426                 break;
1427
1428         case CMD_802_11_AD_HOC_STOP:
1429                 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1430                 break;
1431
1432         case CMD_802_11_SET_AFC:
1433         case CMD_802_11_GET_AFC:
1434
1435                 cmdptr->command = cpu_to_le16(cmd_no);
1436                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1437                                            S_DS_GEN);
1438
1439                 memmove(&cmdptr->params.afc,
1440                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1441
1442                 ret = 0;
1443                 goto done;
1444
1445         case CMD_802_11D_DOMAIN_INFO:
1446                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1447                                                    cmd_no, cmd_action);
1448                 break;
1449
1450         case CMD_802_11_TPC_CFG:
1451                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1452                 cmdptr->size =
1453                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1454                                      S_DS_GEN);
1455
1456                 memmove(&cmdptr->params.tpccfg,
1457                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1458
1459                 ret = 0;
1460                 break;
1461         case CMD_802_11_LED_GPIO_CTRL:
1462                 {
1463                         struct mrvlietypes_ledgpio *gpio =
1464                             (struct mrvlietypes_ledgpio*)
1465                             cmdptr->params.ledgpio.data;
1466
1467                         memmove(&cmdptr->params.ledgpio,
1468                                 pdata_buf,
1469                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1470
1471                         cmdptr->command =
1472                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1473
1474 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1475                         cmdptr->size =
1476                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1477                                 + S_DS_GEN
1478                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1479                         gpio->header.len = gpio->header.len;
1480
1481                         ret = 0;
1482                         break;
1483                 }
1484
1485         case CMD_BT_ACCESS:
1486                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1487                 break;
1488
1489         case CMD_FWT_ACCESS:
1490                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1491                 break;
1492
1493         case CMD_GET_TSF:
1494                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1495                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1496                                            S_DS_GEN);
1497                 ret = 0;
1498                 break;
1499         case CMD_802_11_BEACON_CTRL:
1500                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1501                 break;
1502         default:
1503                 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1504                 ret = -1;
1505                 break;
1506         }
1507
1508         /* return error, since the command preparation failed */
1509         if (ret != 0) {
1510                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1511                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1512                 ret = -1;
1513                 goto done;
1514         }
1515
1516         cmdnode->cmdwaitqwoken = 0;
1517
1518         lbs_queue_cmd(priv, cmdnode);
1519         wake_up_interruptible(&priv->waitq);
1520
1521         if (wait_option & CMD_OPTION_WAITFORRSP) {
1522                 lbs_deb_host("PREP_CMD: wait for response\n");
1523                 might_sleep();
1524                 wait_event_interruptible(cmdnode->cmdwait_q,
1525                                          cmdnode->cmdwaitqwoken);
1526         }
1527
1528         spin_lock_irqsave(&priv->driver_lock, flags);
1529         if (priv->cur_cmd_retcode) {
1530                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1531                        priv->cur_cmd_retcode);
1532                 priv->cur_cmd_retcode = 0;
1533                 ret = -1;
1534         }
1535         spin_unlock_irqrestore(&priv->driver_lock, flags);
1536
1537 done:
1538         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1539         return ret;
1540 }
1541
1542 /**
1543  *  @brief This function allocates the command buffer and link
1544  *  it to command free queue.
1545  *
1546  *  @param priv         A pointer to struct lbs_private structure
1547  *  @return             0 or -1
1548  */
1549 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1550 {
1551         int ret = 0;
1552         u32 bufsize;
1553         u32 i;
1554         struct cmd_ctrl_node *cmdarray;
1555
1556         lbs_deb_enter(LBS_DEB_HOST);
1557
1558         /* Allocate and initialize the command array */
1559         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1560         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1561                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1562                 ret = -1;
1563                 goto done;
1564         }
1565         priv->cmd_array = cmdarray;
1566
1567         /* Allocate and initialize each command buffer in the command array */
1568         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1569                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1570                 if (!cmdarray[i].cmdbuf) {
1571                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1572                         ret = -1;
1573                         goto done;
1574                 }
1575         }
1576
1577         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1578                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1579                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1580         }
1581         ret = 0;
1582
1583 done:
1584         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1585         return ret;
1586 }
1587
1588 /**
1589  *  @brief This function frees the command buffer.
1590  *
1591  *  @param priv         A pointer to struct lbs_private structure
1592  *  @return             0 or -1
1593  */
1594 int lbs_free_cmd_buffer(struct lbs_private *priv)
1595 {
1596         struct cmd_ctrl_node *cmdarray;
1597         unsigned int i;
1598
1599         lbs_deb_enter(LBS_DEB_HOST);
1600
1601         /* need to check if cmd array is allocated or not */
1602         if (priv->cmd_array == NULL) {
1603                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1604                 goto done;
1605         }
1606
1607         cmdarray = priv->cmd_array;
1608
1609         /* Release shared memory buffers */
1610         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1611                 if (cmdarray[i].cmdbuf) {
1612                         kfree(cmdarray[i].cmdbuf);
1613                         cmdarray[i].cmdbuf = NULL;
1614                 }
1615         }
1616
1617         /* Release cmd_ctrl_node */
1618         if (priv->cmd_array) {
1619                 kfree(priv->cmd_array);
1620                 priv->cmd_array = NULL;
1621         }
1622
1623 done:
1624         lbs_deb_leave(LBS_DEB_HOST);
1625         return 0;
1626 }
1627
1628 /**
1629  *  @brief This function gets a free command node if available in
1630  *  command free queue.
1631  *
1632  *  @param priv         A pointer to struct lbs_private structure
1633  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1634  */
1635 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1636 {
1637         struct cmd_ctrl_node *tempnode;
1638         unsigned long flags;
1639
1640         lbs_deb_enter(LBS_DEB_HOST);
1641
1642         if (!priv)
1643                 return NULL;
1644
1645         spin_lock_irqsave(&priv->driver_lock, flags);
1646
1647         if (!list_empty(&priv->cmdfreeq)) {
1648                 tempnode = list_first_entry(&priv->cmdfreeq,
1649                                             struct cmd_ctrl_node, list);
1650                 list_del(&tempnode->list);
1651         } else {
1652                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1653                 tempnode = NULL;
1654         }
1655
1656         spin_unlock_irqrestore(&priv->driver_lock, flags);
1657
1658         lbs_deb_leave(LBS_DEB_HOST);
1659         return tempnode;
1660 }
1661
1662 /**
1663  *  @brief This function executes next command in command
1664  *  pending queue. It will put fimware back to PS mode
1665  *  if applicable.
1666  *
1667  *  @param priv     A pointer to struct lbs_private structure
1668  *  @return        0 or -1
1669  */
1670 int lbs_execute_next_command(struct lbs_private *priv)
1671 {
1672         struct cmd_ctrl_node *cmdnode = NULL;
1673         struct cmd_header *cmd;
1674         unsigned long flags;
1675         int ret = 0;
1676
1677         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1678          * only caller to us is lbs_thread() and we get even when a
1679          * data packet is received */
1680         lbs_deb_enter(LBS_DEB_THREAD);
1681
1682         spin_lock_irqsave(&priv->driver_lock, flags);
1683
1684         if (priv->cur_cmd) {
1685                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1686                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1687                 ret = -1;
1688                 goto done;
1689         }
1690
1691         if (!list_empty(&priv->cmdpendingq)) {
1692                 cmdnode = list_first_entry(&priv->cmdpendingq,
1693                                            struct cmd_ctrl_node, list);
1694         }
1695
1696         spin_unlock_irqrestore(&priv->driver_lock, flags);
1697
1698         if (cmdnode) {
1699                 cmd = cmdnode->cmdbuf;
1700
1701                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1702                         if ((priv->psstate == PS_STATE_SLEEP) ||
1703                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1704                                 lbs_deb_host(
1705                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1706                                        le16_to_cpu(cmd->command),
1707                                        priv->psstate);
1708                                 ret = -1;
1709                                 goto done;
1710                         }
1711                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1712                                      "0x%04x in psstate %d\n",
1713                                      le16_to_cpu(cmd->command), priv->psstate);
1714                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1715                         /*
1716                          * 1. Non-PS command:
1717                          * Queue it. set needtowakeup to TRUE if current state
1718                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1719                          * 2. PS command but not Exit_PS:
1720                          * Ignore it.
1721                          * 3. PS command Exit_PS:
1722                          * Set needtowakeup to TRUE if current state is SLEEP,
1723                          * otherwise send this command down to firmware
1724                          * immediately.
1725                          */
1726                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1727                                 /*  Prepare to send Exit PS,
1728                                  *  this non PS command will be sent later */
1729                                 if ((priv->psstate == PS_STATE_SLEEP)
1730                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1731                                     ) {
1732                                         /* w/ new scheme, it will not reach here.
1733                                            since it is blocked in main_thread. */
1734                                         priv->needtowakeup = 1;
1735                                 } else
1736                                         lbs_ps_wakeup(priv, 0);
1737
1738                                 ret = 0;
1739                                 goto done;
1740                         } else {
1741                                 /*
1742                                  * PS command. Ignore it if it is not Exit_PS.
1743                                  * otherwise send it down immediately.
1744                                  */
1745                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1746
1747                                 lbs_deb_host(
1748                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1749                                        psm->action);
1750                                 if (psm->action !=
1751                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1752                                         lbs_deb_host(
1753                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1754                                         list_del(&cmdnode->list);
1755                                         spin_lock_irqsave(&priv->driver_lock, flags);
1756                                         lbs_complete_command(priv, cmdnode, 0);
1757                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1758
1759                                         ret = 0;
1760                                         goto done;
1761                                 }
1762
1763                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1764                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1765                                         lbs_deb_host(
1766                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1767                                         list_del(&cmdnode->list);
1768                                         spin_lock_irqsave(&priv->driver_lock, flags);
1769                                         lbs_complete_command(priv, cmdnode, 0);
1770                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1771                                         priv->needtowakeup = 1;
1772
1773                                         ret = 0;
1774                                         goto done;
1775                                 }
1776
1777                                 lbs_deb_host(
1778                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1779                         }
1780                 }
1781                 list_del(&cmdnode->list);
1782                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1783                             le16_to_cpu(cmd->command));
1784                 lbs_submit_command(priv, cmdnode);
1785         } else {
1786                 /*
1787                  * check if in power save mode, if yes, put the device back
1788                  * to PS mode
1789                  */
1790                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1791                     (priv->psstate == PS_STATE_FULL_POWER) &&
1792                     ((priv->connect_status == LBS_CONNECTED) ||
1793                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1794                         if (priv->secinfo.WPAenabled ||
1795                             priv->secinfo.WPA2enabled) {
1796                                 /* check for valid WPA group keys */
1797                                 if (priv->wpa_mcast_key.len ||
1798                                     priv->wpa_unicast_key.len) {
1799                                         lbs_deb_host(
1800                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1801                                                " go back to PS_SLEEP");
1802                                         lbs_ps_sleep(priv, 0);
1803                                 }
1804                         } else {
1805                                 lbs_deb_host(
1806                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1807                                        "go back to PS_SLEEP");
1808                                 lbs_ps_sleep(priv, 0);
1809                         }
1810                 }
1811         }
1812
1813         ret = 0;
1814 done:
1815         lbs_deb_leave(LBS_DEB_THREAD);
1816         return ret;
1817 }
1818
1819 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1820 {
1821         union iwreq_data iwrq;
1822         u8 buf[50];
1823
1824         lbs_deb_enter(LBS_DEB_WEXT);
1825
1826         memset(&iwrq, 0, sizeof(union iwreq_data));
1827         memset(buf, 0, sizeof(buf));
1828
1829         snprintf(buf, sizeof(buf) - 1, "%s", str);
1830
1831         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1832
1833         /* Send Event to upper layer */
1834         lbs_deb_wext("event indication string %s\n", (char *)buf);
1835         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1836         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1837
1838         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1839
1840         lbs_deb_leave(LBS_DEB_WEXT);
1841 }
1842
1843 static void lbs_send_confirmsleep(struct lbs_private *priv)
1844 {
1845         unsigned long flags;
1846         int ret;
1847
1848         lbs_deb_enter(LBS_DEB_HOST);
1849         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1850                 sizeof(confirm_sleep));
1851
1852         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1853                 sizeof(confirm_sleep));
1854         if (ret) {
1855                 lbs_pr_alert("confirm_sleep failed\n");
1856                 goto out;
1857         }
1858
1859         spin_lock_irqsave(&priv->driver_lock, flags);
1860
1861         /* We don't get a response on the sleep-confirmation */
1862         priv->dnld_sent = DNLD_RES_RECEIVED;
1863
1864         /* If nothing to do, go back to sleep (?) */
1865         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1866                 priv->psstate = PS_STATE_SLEEP;
1867
1868         spin_unlock_irqrestore(&priv->driver_lock, flags);
1869
1870 out:
1871         lbs_deb_leave(LBS_DEB_HOST);
1872 }
1873
1874 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1875 {
1876         lbs_deb_enter(LBS_DEB_HOST);
1877
1878         /*
1879          * PS is currently supported only in Infrastructure mode
1880          * Remove this check if it is to be supported in IBSS mode also
1881          */
1882
1883         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1884                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1885
1886         lbs_deb_leave(LBS_DEB_HOST);
1887 }
1888
1889 /**
1890  *  @brief This function sends Exit_PS command to firmware.
1891  *
1892  *  @param priv         A pointer to struct lbs_private structure
1893  *  @param wait_option  wait response or not
1894  *  @return             n/a
1895  */
1896 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1897 {
1898         __le32 Localpsmode;
1899
1900         lbs_deb_enter(LBS_DEB_HOST);
1901
1902         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1903
1904         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1905                               CMD_SUBCMD_EXIT_PS,
1906                               wait_option, 0, &Localpsmode);
1907
1908         lbs_deb_leave(LBS_DEB_HOST);
1909 }
1910
1911 /**
1912  *  @brief This function checks condition and prepares to
1913  *  send sleep confirm command to firmware if ok.
1914  *
1915  *  @param priv         A pointer to struct lbs_private structure
1916  *  @param psmode       Power Saving mode
1917  *  @return             n/a
1918  */
1919 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1920 {
1921         unsigned long flags =0;
1922         int allowed = 1;
1923
1924         lbs_deb_enter(LBS_DEB_HOST);
1925
1926         spin_lock_irqsave(&priv->driver_lock, flags);
1927         if (priv->dnld_sent) {
1928                 allowed = 0;
1929                 lbs_deb_host("dnld_sent was set\n");
1930         }
1931
1932         /* In-progress command? */
1933         if (priv->cur_cmd) {
1934                 allowed = 0;
1935                 lbs_deb_host("cur_cmd was set\n");
1936         }
1937
1938         /* Pending events or command responses? */
1939         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1940                 allowed = 0;
1941                 lbs_deb_host("pending events or command responses\n");
1942         }
1943         spin_unlock_irqrestore(&priv->driver_lock, flags);
1944
1945         if (allowed) {
1946                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1947                 lbs_send_confirmsleep(priv);
1948         } else {
1949                 lbs_deb_host("sleep confirm has been delayed\n");
1950         }
1951
1952         lbs_deb_leave(LBS_DEB_HOST);
1953 }
1954
1955
1956 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1957         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1958         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1959         unsigned long callback_arg)
1960 {
1961         struct cmd_ctrl_node *cmdnode;
1962
1963         lbs_deb_enter(LBS_DEB_HOST);
1964
1965         if (priv->surpriseremoved) {
1966                 lbs_deb_host("PREP_CMD: card removed\n");
1967                 cmdnode = ERR_PTR(-ENOENT);
1968                 goto done;
1969         }
1970
1971         cmdnode = lbs_get_cmd_ctrl_node(priv);
1972         if (cmdnode == NULL) {
1973                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1974
1975                 /* Wake up main thread to execute next command */
1976                 wake_up_interruptible(&priv->waitq);
1977                 cmdnode = ERR_PTR(-ENOBUFS);
1978                 goto done;
1979         }
1980
1981         cmdnode->callback = callback;
1982         cmdnode->callback_arg = callback_arg;
1983
1984         /* Copy the incoming command to the buffer */
1985         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1986
1987         /* Set sequence number, clean result, move to buffer */
1988         priv->seqnum++;
1989         cmdnode->cmdbuf->command = cpu_to_le16(command);
1990         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
1991         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
1992         cmdnode->cmdbuf->result  = 0;
1993
1994         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1995
1996         cmdnode->cmdwaitqwoken = 0;
1997         lbs_queue_cmd(priv, cmdnode);
1998         wake_up_interruptible(&priv->waitq);
1999
2000  done:
2001         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2002         return cmdnode;
2003 }
2004
2005 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2006         struct cmd_header *in_cmd, int in_cmd_size)
2007 {
2008         lbs_deb_enter(LBS_DEB_CMD);
2009         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2010                 lbs_cmd_async_callback, 0);
2011         lbs_deb_leave(LBS_DEB_CMD);
2012 }
2013
2014 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2015               struct cmd_header *in_cmd, int in_cmd_size,
2016               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2017               unsigned long callback_arg)
2018 {
2019         struct cmd_ctrl_node *cmdnode;
2020         unsigned long flags;
2021         int ret = 0;
2022
2023         lbs_deb_enter(LBS_DEB_HOST);
2024
2025         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2026                                   callback, callback_arg);
2027         if (IS_ERR(cmdnode)) {
2028                 ret = PTR_ERR(cmdnode);
2029                 goto done;
2030         }
2031
2032         might_sleep();
2033         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2034
2035         spin_lock_irqsave(&priv->driver_lock, flags);
2036         ret = cmdnode->result;
2037         if (ret)
2038                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2039                             command, ret);
2040
2041         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2042         spin_unlock_irqrestore(&priv->driver_lock, flags);
2043
2044 done:
2045         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2046         return ret;
2047 }
2048 EXPORT_SYMBOL_GPL(__lbs_cmd);
2049
2050