SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/net/wireless/libertas/cmd.c

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