drivers/net/wireless/libertas/cmd.c

   1 /**
   2   * This file contains the handling of command.
   3   * It prepares command and sends it to firmware when it is ready.
   4   */
   5
   6 #include <net/iw_handler.h>
   7 #include <net/ieee80211.h>
   8 #include <linux/kfifo.h>
   9 #include "host.h"
  10 #include "hostcmd.h"
  11 #include "decl.h"
  12 #include "defs.h"
  13 #include "dev.h"
  14 #include "assoc.h"
  15 #include "wext.h"
  16 #include "cmd.h"
  17
  18 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
  19
  20
  21 /**
  22  *  @brief Simple callback that copies response back into command
  23  *
  24  *  @param priv         A pointer to struct lbs_private structure
  25  *  @param extra        A pointer to the original command structure for which
  26  *                      'resp' is a response
  27  *  @param resp         A pointer to the command response
  28  *
  29  *  @return             0 on success, error on failure
  30  */
  31 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
  32                      struct cmd_header *resp)
  33 {
  34         struct cmd_header *buf = (void *)extra;
  35         uint16_t copy_len;
  36
  37         copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
  38         memcpy(buf, resp, copy_len);
  39         return 0;
  40 }
  41 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
  42
  43 /**
  44  *  @brief Simple callback that ignores the result. Use this if
  45  *  you just want to send a command to the hardware, but don't
  46  *  care for the result.
  47  *
  48  *  @param priv         ignored
  49  *  @param extra        ignored
  50  *  @param resp         ignored
  51  *
  52  *  @return             0 for success
  53  */
  54 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
  55                      struct cmd_header *resp)
  56 {
  57         return 0;
  58 }
  59
  60
  61 /**
  62  *  @brief Checks whether a command is allowed in Power Save mode
  63  *
  64  *  @param command the command ID
  65  *  @return        1 if allowed, 0 if not allowed
  66  */
  67 static u8 is_command_allowed_in_ps(u16 cmd)
  68 {
  69         switch (cmd) {
  70         case CMD_802_11_RSSI:
  71                 return 1;
  72         default:
  73                 break;
  74         }
  75         return 0;
  76 }
  77
  78 /**
  79  *  @brief Updates the hardware details like MAC address and regulatory region
  80  *
  81  *  @param priv         A pointer to struct lbs_private structure
  82  *
  83  *  @return             0 on success, error on failure
  84  */
  85 int lbs_update_hw_spec(struct lbs_private *priv)
  86 {
  87         struct cmd_ds_get_hw_spec cmd;
  88         int ret = -1;
  89         u32 i;
  90         DECLARE_MAC_BUF(mac);
  91
  92         lbs_deb_enter(LBS_DEB_CMD);
  93
  94         memset(&cmd, 0, sizeof(cmd));
  95         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
  96         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
  97         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
  98         if (ret)
  99                 goto out;
 100
 101         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
 102
 103         /* The firmware release is in an interesting format: the patch
 104          * level is in the most significant nibble ... so fix that: */
 105         priv->fwrelease = le32_to_cpu(cmd.fwrelease);
 106         priv->fwrelease = (priv->fwrelease << 8) |
 107                 (priv->fwrelease >> 24 & 0xff);
 108
 109         /* Some firmware capabilities:
 110          * CF card    firmware 5.0.16p0:   cap 0x00000303
 111          * USB dongle firmware 5.110.17p2: cap 0x00000303
 112          */
 113         lbs_pr_info("%s, fw %u.%u.%up%u, cap 0x%08x\n",
 114                 print_mac(mac, cmd.permanentaddr),
 115                 priv->fwrelease >> 24 & 0xff,
 116                 priv->fwrelease >> 16 & 0xff,
 117                 priv->fwrelease >>  8 & 0xff,
 118                 priv->fwrelease       & 0xff,
 119                 priv->fwcapinfo);
 120         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
 121                     cmd.hwifversion, cmd.version);
 122
 123         /* Clamp region code to 8-bit since FW spec indicates that it should
 124          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
 125          * returns non-zero high 8 bits here.
 126          */
 127         priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
 128
 129         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 130                 /* use the region code to search for the index */
 131                 if (priv->regioncode == lbs_region_code_to_index[i])
 132                         break;
 133         }
 134
 135         /* if it's unidentified region code, use the default (USA) */
 136         if (i >= MRVDRV_MAX_REGION_CODE) {
 137                 priv->regioncode = 0x10;
 138                 lbs_pr_info("unidentified region code; using the default (USA)\n");
 139         }
 140
 141         if (priv->current_addr[0] == 0xff)
 142                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
 143
 144         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
 145         if (priv->mesh_dev)
 146                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 147
 148         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
 149                 ret = -1;
 150                 goto out;
 151         }
 152
 153         if (lbs_set_universaltable(priv, 0)) {
 154                 ret = -1;
 155                 goto out;
 156         }
 157
 158 out:
 159         lbs_deb_leave(LBS_DEB_CMD);
 160         return ret;
 161 }
 162
 163 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
 164 {
 165         struct cmd_ds_host_sleep cmd_config;
 166         int ret;
 167
 168         cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
 169         cmd_config.criteria = cpu_to_le32(criteria);
 170         cmd_config.gpio = priv->wol_gpio;
 171         cmd_config.gap = priv->wol_gap;
 172
 173         ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
 174         if (!ret) {
 175                 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
 176                 priv->wol_criteria = criteria;
 177         } else {
 178                 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
 179         }
 180
 181         return ret;
 182 }
 183 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
 184
 185 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
 186                                    u16 cmd_action)
 187 {
 188         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
 189
 190         lbs_deb_enter(LBS_DEB_CMD);
 191
 192         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
 193         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
 194                                 S_DS_GEN);
 195         psm->action = cpu_to_le16(cmd_action);
 196         psm->multipledtim = 0;
 197         switch (cmd_action) {
 198         case CMD_SUBCMD_ENTER_PS:
 199                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
 200
 201                 psm->locallisteninterval = 0;
 202                 psm->nullpktinterval = 0;
 203                 psm->multipledtim =
 204                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
 205                 break;
 206
 207         case CMD_SUBCMD_EXIT_PS:
 208                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
 209                 break;
 210
 211         case CMD_SUBCMD_SLEEP_CONFIRMED:
 212                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
 213                 break;
 214
 215         default:
 216                 break;
 217         }
 218
 219         lbs_deb_leave(LBS_DEB_CMD);
 220         return 0;
 221 }
 222
 223 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
 224                                       uint16_t cmd_action, uint16_t *timeout)
 225 {
 226         struct cmd_ds_802_11_inactivity_timeout cmd;
 227         int ret;
 228
 229         lbs_deb_enter(LBS_DEB_CMD);
 230
 231         cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
 232         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 233
 234         cmd.action = cpu_to_le16(cmd_action);
 235
 236         if (cmd_action == CMD_ACT_SET)
 237                 cmd.timeout = cpu_to_le16(*timeout);
 238         else
 239                 cmd.timeout = 0;
 240
 241         ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
 242
 243         if (!ret)
 244                 *timeout = le16_to_cpu(cmd.timeout);
 245
 246         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 247         return 0;
 248 }
 249
 250 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
 251                                 struct sleep_params *sp)
 252 {
 253         struct cmd_ds_802_11_sleep_params cmd;
 254         int ret;
 255
 256         lbs_deb_enter(LBS_DEB_CMD);
 257
 258         if (cmd_action == CMD_ACT_GET) {
 259                 memset(&cmd, 0, sizeof(cmd));
 260         } else {
 261                 cmd.error = cpu_to_le16(sp->sp_error);
 262                 cmd.offset = cpu_to_le16(sp->sp_offset);
 263                 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
 264                 cmd.calcontrol = sp->sp_calcontrol;
 265                 cmd.externalsleepclk = sp->sp_extsleepclk;
 266                 cmd.reserved = cpu_to_le16(sp->sp_reserved);
 267         }
 268         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 269         cmd.action = cpu_to_le16(cmd_action);
 270
 271         ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
 272
 273         if (!ret) {
 274                 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
 275                             "calcontrol 0x%x extsleepclk 0x%x\n",
 276                             le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
 277                             le16_to_cpu(cmd.stabletime), cmd.calcontrol,
 278                             cmd.externalsleepclk);
 279
 280                 sp->sp_error = le16_to_cpu(cmd.error);
 281                 sp->sp_offset = le16_to_cpu(cmd.offset);
 282                 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
 283                 sp->sp_calcontrol = cmd.calcontrol;
 284                 sp->sp_extsleepclk = cmd.externalsleepclk;
 285                 sp->sp_reserved = le16_to_cpu(cmd.reserved);
 286         }
 287
 288         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 289         return 0;
 290 }
 291
 292 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
 293                            struct assoc_request *assoc)
 294 {
 295         struct cmd_ds_802_11_set_wep cmd;
 296         int ret = 0;
 297
 298         lbs_deb_enter(LBS_DEB_CMD);
 299
 300         memset(&cmd, 0, sizeof(cmd));
 301         cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
 302         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 303
 304         cmd.action = cpu_to_le16(cmd_action);
 305
 306         if (cmd_action == CMD_ACT_ADD) {
 307                 int i;
 308
 309                 /* default tx key index */
 310                 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
 311                                            CMD_WEP_KEY_INDEX_MASK);
 312
 313                 /* Copy key types and material to host command structure */
 314                 for (i = 0; i < 4; i++) {
 315                         struct enc_key *pkey = &assoc->wep_keys[i];
 316
 317                         switch (pkey->len) {
 318                         case KEY_LEN_WEP_40:
 319                                 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
 320                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 321                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
 322                                 break;
 323                         case KEY_LEN_WEP_104:
 324                                 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
 325                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 326                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
 327                                 break;
 328                         case 0:
 329                                 break;
 330                         default:
 331                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
 332                                             i, pkey->len);
 333                                 ret = -1;
 334                                 goto done;
 335                                 break;
 336                         }
 337                 }
 338         } else if (cmd_action == CMD_ACT_REMOVE) {
 339                 /* ACT_REMOVE clears _all_ WEP keys */
 340
 341                 /* default tx key index */
 342                 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
 343                                            CMD_WEP_KEY_INDEX_MASK);
 344                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
 345         }
 346
 347         ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
 348 done:
 349         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 350         return ret;
 351 }
 352
 353 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
 354                               uint16_t *enable)
 355 {
 356         struct cmd_ds_802_11_enable_rsn cmd;
 357         int ret;
 358
 359         lbs_deb_enter(LBS_DEB_CMD);
 360
 361         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 362         cmd.action = cpu_to_le16(cmd_action);
 363
 364         if (cmd_action == CMD_ACT_GET)
 365                 cmd.enable = 0;
 366         else {
 367                 if (*enable)
 368                         cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
 369                 else
 370                         cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
 371                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
 372         }
 373
 374         ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
 375         if (!ret && cmd_action == CMD_ACT_GET)
 376                 *enable = le16_to_cpu(cmd.enable);
 377
 378         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 379         return ret;
 380 }
 381
 382 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
 383                             struct enc_key *key)
 384 {
 385         lbs_deb_enter(LBS_DEB_CMD);
 386
 387         if (key->flags & KEY_INFO_WPA_ENABLED)
 388                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
 389         if (key->flags & KEY_INFO_WPA_UNICAST)
 390                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
 391         if (key->flags & KEY_INFO_WPA_MCAST)
 392                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
 393
 394         keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
 395         keyparam->keytypeid = cpu_to_le16(key->type);
 396         keyparam->keylen = cpu_to_le16(key->len);
 397         memcpy(keyparam->key, key->key, key->len);
 398
 399         /* Length field doesn't include the {type,length} header */
 400         keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
 401         lbs_deb_leave(LBS_DEB_CMD);
 402 }
 403
 404 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
 405                                 struct assoc_request *assoc)
 406 {
 407         struct cmd_ds_802_11_key_material cmd;
 408         int ret = 0;
 409         int index = 0;
 410
 411         lbs_deb_enter(LBS_DEB_CMD);
 412
 413         cmd.action = cpu_to_le16(cmd_action);
 414         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 415
 416         if (cmd_action == CMD_ACT_GET) {
 417                 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
 418         } else {
 419                 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
 420
 421                 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
 422                         set_one_wpa_key(&cmd.keyParamSet[index],
 423                                         &assoc->wpa_unicast_key);
 424                         index++;
 425                 }
 426
 427                 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
 428                         set_one_wpa_key(&cmd.keyParamSet[index],
 429                                         &assoc->wpa_mcast_key);
 430                         index++;
 431                 }
 432
 433                 /* The common header and as many keys as we included */
 434                 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
 435                                                     keyParamSet[index]));
 436         }
 437         ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
 438         /* Copy the returned key to driver private data */
 439         if (!ret && cmd_action == CMD_ACT_GET) {
 440                 void *buf_ptr = cmd.keyParamSet;
 441                 void *resp_end = &(&cmd)[1];
 442
 443                 while (buf_ptr < resp_end) {
 444                         struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
 445                         struct enc_key *key;
 446                         uint16_t param_set_len = le16_to_cpu(keyparam->length);
 447                         uint16_t key_len = le16_to_cpu(keyparam->keylen);
 448                         uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
 449                         uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
 450                         void *end;
 451
 452                         end = (void *)keyparam + sizeof(keyparam->type)
 453                                 + sizeof(keyparam->length) + param_set_len;
 454
 455                         /* Make sure we don't access past the end of the IEs */
 456                         if (end > resp_end)
 457                                 break;
 458
 459                         if (key_flags & KEY_INFO_WPA_UNICAST)
 460                                 key = &priv->wpa_unicast_key;
 461                         else if (key_flags & KEY_INFO_WPA_MCAST)
 462                                 key = &priv->wpa_mcast_key;
 463                         else
 464                                 break;
 465
 466                         /* Copy returned key into driver */
 467                         memset(key, 0, sizeof(struct enc_key));
 468                         if (key_len > sizeof(key->key))
 469                                 break;
 470                         key->type = key_type;
 471                         key->flags = key_flags;
 472                         key->len = key_len;
 473                         memcpy(key->key, keyparam->key, key->len);
 474
 475                         buf_ptr = end + 1;
 476                 }
 477         }
 478
 479         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 480         return ret;
 481 }
 482
 483 static int lbs_cmd_802_11_reset(struct cmd_ds_command *cmd, int cmd_action)
 484 {
 485         struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
 486
 487         lbs_deb_enter(LBS_DEB_CMD);
 488
 489         cmd->command = cpu_to_le16(CMD_802_11_RESET);
 490         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
 491         reset->action = cpu_to_le16(cmd_action);
 492
 493         lbs_deb_leave(LBS_DEB_CMD);
 494         return 0;
 495 }
 496
 497 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
 498                                     struct cmd_ds_command *cmd,
 499                                     int cmd_action,
 500                                     int cmd_oid, void *pdata_buf)
 501 {
 502         struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
 503         u8 ucTemp;
 504
 505         lbs_deb_enter(LBS_DEB_CMD);
 506
 507         lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
 508
 509         cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
 510         cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
 511
 512         switch (cmd_oid) {
 513         case OID_802_11_INFRASTRUCTURE_MODE:
 514         {
 515                 u8 mode = (u8) (size_t) pdata_buf;
 516                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 517                 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
 518                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
 519                 if (mode == IW_MODE_ADHOC) {
 520                         ucTemp = SNMP_MIB_VALUE_ADHOC;
 521                 } else {
 522                         /* Infra and Auto modes */
 523                         ucTemp = SNMP_MIB_VALUE_INFRA;
 524                 }
 525
 526                 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
 527
 528                 break;
 529         }
 530
 531         case OID_802_11D_ENABLE:
 532                 {
 533                         u32 ulTemp;
 534
 535                         pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
 536
 537                         if (cmd_action == CMD_ACT_SET) {
 538                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 539                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 540                                 ulTemp = *(u32 *)pdata_buf;
 541                                 *((__le16 *)(pSNMPMIB->value)) =
 542                                     cpu_to_le16((u16) ulTemp);
 543                         }
 544                         break;
 545                 }
 546
 547         case OID_802_11_FRAGMENTATION_THRESHOLD:
 548                 {
 549                         u32 ulTemp;
 550
 551                         pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
 552
 553                         if (cmd_action == CMD_ACT_GET) {
 554                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 555                         } else if (cmd_action == CMD_ACT_SET) {
 556                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 557                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 558                                 ulTemp = *((u32 *) pdata_buf);
 559                                 *((__le16 *)(pSNMPMIB->value)) =
 560                                     cpu_to_le16((u16) ulTemp);
 561
 562                         }
 563
 564                         break;
 565                 }
 566
 567         case OID_802_11_RTS_THRESHOLD:
 568                 {
 569
 570                         u32 ulTemp;
 571                         pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
 572
 573                         if (cmd_action == CMD_ACT_GET) {
 574                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 575                         } else if (cmd_action == CMD_ACT_SET) {
 576                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 577                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 578                                 ulTemp = *((u32 *)pdata_buf);
 579                                 *(__le16 *)(pSNMPMIB->value) =
 580                                     cpu_to_le16((u16) ulTemp);
 581
 582                         }
 583                         break;
 584                 }
 585         case OID_802_11_TX_RETRYCOUNT:
 586                 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
 587
 588                 if (cmd_action == CMD_ACT_GET) {
 589                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 590                 } else if (cmd_action == CMD_ACT_SET) {
 591                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 592                         pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 593                         *((__le16 *)(pSNMPMIB->value)) =
 594                             cpu_to_le16((u16) priv->txretrycount);
 595                 }
 596
 597                 break;
 598         default:
 599                 break;
 600         }
 601
 602         lbs_deb_cmd(
 603                "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
 604                le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
 605                le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
 606
 607         lbs_deb_cmd(
 608                "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
 609                le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
 610                le16_to_cpu(pSNMPMIB->bufsize),
 611                le16_to_cpu(*(__le16 *) pSNMPMIB->value));
 612
 613         lbs_deb_leave(LBS_DEB_CMD);
 614         return 0;
 615 }
 616
 617 /**
 618  *  @brief Get the min, max, and current TX power
 619  *
 620  *  @param priv         A pointer to struct lbs_private structure
 621  *  @param curlevel     Current power level in dBm
 622  *  @param minlevel     Minimum supported power level in dBm (optional)
 623  *  @param maxlevel     Maximum supported power level in dBm (optional)
 624  *
 625  *  @return             0 on success, error on failure
 626  */
 627 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
 628                      s16 *maxlevel)
 629 {
 630         struct cmd_ds_802_11_rf_tx_power cmd;
 631         int ret;
 632
 633         lbs_deb_enter(LBS_DEB_CMD);
 634
 635         memset(&cmd, 0, sizeof(cmd));
 636         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 637         cmd.action = cpu_to_le16(CMD_ACT_GET);
 638
 639         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 640         if (ret == 0) {
 641                 *curlevel = le16_to_cpu(cmd.curlevel);
 642                 if (minlevel)
 643                         *minlevel = le16_to_cpu(cmd.minlevel);
 644                 if (maxlevel)
 645                         *maxlevel = le16_to_cpu(cmd.maxlevel);
 646         }
 647
 648         lbs_deb_leave(LBS_DEB_CMD);
 649         return ret;
 650 }
 651
 652 /**
 653  *  @brief Set the TX power
 654  *
 655  *  @param priv         A pointer to struct lbs_private structure
 656  *  @param dbm          The desired power level in dBm
 657  *
 658  *  @return             0 on success, error on failure
 659  */
 660 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
 661 {
 662         struct cmd_ds_802_11_rf_tx_power cmd;
 663         int ret;
 664
 665         lbs_deb_enter(LBS_DEB_CMD);
 666
 667         memset(&cmd, 0, sizeof(cmd));
 668         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 669         cmd.action = cpu_to_le16(CMD_ACT_SET);
 670         cmd.curlevel = cpu_to_le16(dbm);
 671
 672         lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
 673
 674         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 675
 676         lbs_deb_leave(LBS_DEB_CMD);
 677         return ret;
 678 }
 679
 680 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 681                                       u16 cmd_action, void *pdata_buf)
 682 {
 683         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 684
 685         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 686         cmd->size =
 687             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 688                              S_DS_GEN);
 689
 690         monitor->action = cpu_to_le16(cmd_action);
 691         if (cmd_action == CMD_ACT_SET) {
 692                 monitor->mode =
 693                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 694         }
 695
 696         return 0;
 697 }
 698
 699 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
 700 {
 701 /*              Bit     Rate
 702 *               15:13 Reserved
 703 *               12    54 Mbps
 704 *               11    48 Mbps
 705 *               10    36 Mbps
 706 *               9     24 Mbps
 707 *               8     18 Mbps
 708 *               7     12 Mbps
 709 *               6     9 Mbps
 710 *               5     6 Mbps
 711 *               4     Reserved
 712 *               3     11 Mbps
 713 *               2     5.5 Mbps
 714 *               1     2 Mbps
 715 *               0     1 Mbps
 716 **/
 717
 718         uint16_t ratemask;
 719         int i = lbs_data_rate_to_fw_index(rate);
 720         if (lower_rates_ok)
 721                 ratemask = (0x1fef >> (12 - i));
 722         else
 723                 ratemask = (1 << i);
 724         return cpu_to_le16(ratemask);
 725 }
 726
 727 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 728                                       uint16_t cmd_action)
 729 {
 730         struct cmd_ds_802_11_rate_adapt_rateset cmd;
 731         int ret;
 732
 733         lbs_deb_enter(LBS_DEB_CMD);
 734
 735         if (!priv->cur_rate && !priv->enablehwauto)
 736                 return -EINVAL;
 737
 738         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 739
 740         cmd.action = cpu_to_le16(cmd_action);
 741         cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
 742         cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
 743         ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
 744         if (!ret && cmd_action == CMD_ACT_GET) {
 745                 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
 746                 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
 747         }
 748
 749         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 750         return ret;
 751 }
 752 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
 753
 754 /**
 755  *  @brief Set the data rate
 756  *
 757  *  @param priv         A pointer to struct lbs_private structure
 758  *  @param rate         The desired data rate, or 0 to clear a locked rate
 759  *
 760  *  @return             0 on success, error on failure
 761  */
 762 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 763 {
 764         struct cmd_ds_802_11_data_rate cmd;
 765         int ret = 0;
 766
 767         lbs_deb_enter(LBS_DEB_CMD);
 768
 769         memset(&cmd, 0, sizeof(cmd));
 770         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 771
 772         if (rate > 0) {
 773                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 774                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 775                 if (cmd.rates[0] == 0) {
 776                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 777                                     " 0x%02X\n", rate);
 778                         ret = 0;
 779                         goto out;
 780                 }
 781                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 782         } else {
 783                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 784                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 785         }
 786
 787         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 788         if (ret)
 789                 goto out;
 790
 791         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 792
 793         /* FIXME: get actual rates FW can do if this command actually returns
 794          * all data rates supported.
 795          */
 796         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 797         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 798
 799 out:
 800         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 801         return ret;
 802 }
 803
 804 /**
 805  *  @brief Get the radio channel
 806  *
 807  *  @param priv         A pointer to struct lbs_private structure
 808  *
 809  *  @return             The channel on success, error on failure
 810  */
 811 int lbs_get_channel(struct lbs_private *priv)
 812 {
 813         struct cmd_ds_802_11_rf_channel cmd;
 814         int ret = 0;
 815
 816         lbs_deb_enter(LBS_DEB_CMD);
 817
 818         memset(&cmd, 0, sizeof(cmd));
 819         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 820         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 821
 822         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 823         if (ret)
 824                 goto out;
 825
 826         ret = le16_to_cpu(cmd.channel);
 827         lbs_deb_cmd("current radio channel is %d\n", ret);
 828
 829 out:
 830         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 831         return ret;
 832 }
 833
 834 int lbs_update_channel(struct lbs_private *priv)
 835 {
 836         int ret;
 837
 838         /* the channel in f/w could be out of sync; get the current channel */
 839         lbs_deb_enter(LBS_DEB_ASSOC);
 840
 841         ret = lbs_get_channel(priv);
 842         if (ret > 0) {
 843                 priv->curbssparams.channel = ret;
 844                 ret = 0;
 845         }
 846         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 847         return ret;
 848 }
 849
 850 /**
 851  *  @brief Set the radio channel
 852  *
 853  *  @param priv         A pointer to struct lbs_private structure
 854  *  @param channel      The desired channel, or 0 to clear a locked channel
 855  *
 856  *  @return             0 on success, error on failure
 857  */
 858 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 859 {
 860         struct cmd_ds_802_11_rf_channel cmd;
 861         u8 old_channel = priv->curbssparams.channel;
 862         int ret = 0;
 863
 864         lbs_deb_enter(LBS_DEB_CMD);
 865
 866         memset(&cmd, 0, sizeof(cmd));
 867         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 868         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 869         cmd.channel = cpu_to_le16(channel);
 870
 871         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 872         if (ret)
 873                 goto out;
 874
 875         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 876         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 877                 priv->curbssparams.channel);
 878
 879 out:
 880         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 881         return ret;
 882 }
 883
 884 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 885                                 struct cmd_ds_command *cmd)
 886 {
 887
 888         lbs_deb_enter(LBS_DEB_CMD);
 889         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 890         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 891         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 892
 893         /* reset Beacon SNR/NF/RSSI values */
 894         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 895         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 896         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 897         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 898         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 899         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 900
 901         lbs_deb_leave(LBS_DEB_CMD);
 902         return 0;
 903 }
 904
 905 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 906                                u8 cmd_action, void *pdata_buf)
 907 {
 908         struct lbs_offset_value *offval;
 909
 910         lbs_deb_enter(LBS_DEB_CMD);
 911
 912         offval = (struct lbs_offset_value *)pdata_buf;
 913
 914         switch (le16_to_cpu(cmdptr->command)) {
 915         case CMD_MAC_REG_ACCESS:
 916                 {
 917                         struct cmd_ds_mac_reg_access *macreg;
 918
 919                         cmdptr->size =
 920                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 921                                         + S_DS_GEN);
 922                         macreg =
 923                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 924                             macreg;
 925
 926                         macreg->action = cpu_to_le16(cmd_action);
 927                         macreg->offset = cpu_to_le16((u16) offval->offset);
 928                         macreg->value = cpu_to_le32(offval->value);
 929
 930                         break;
 931                 }
 932
 933         case CMD_BBP_REG_ACCESS:
 934                 {
 935                         struct cmd_ds_bbp_reg_access *bbpreg;
 936
 937                         cmdptr->size =
 938                             cpu_to_le16(sizeof
 939                                              (struct cmd_ds_bbp_reg_access)
 940                                              + S_DS_GEN);
 941                         bbpreg =
 942                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 943                             bbpreg;
 944
 945                         bbpreg->action = cpu_to_le16(cmd_action);
 946                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 947                         bbpreg->value = (u8) offval->value;
 948
 949                         break;
 950                 }
 951
 952         case CMD_RF_REG_ACCESS:
 953                 {
 954                         struct cmd_ds_rf_reg_access *rfreg;
 955
 956                         cmdptr->size =
 957                             cpu_to_le16(sizeof
 958                                              (struct cmd_ds_rf_reg_access) +
 959                                              S_DS_GEN);
 960                         rfreg =
 961                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 962                             rfreg;
 963
 964                         rfreg->action = cpu_to_le16(cmd_action);
 965                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 966                         rfreg->value = (u8) offval->value;
 967
 968                         break;
 969                 }
 970
 971         default:
 972                 break;
 973         }
 974
 975         lbs_deb_leave(LBS_DEB_CMD);
 976         return 0;
 977 }
 978
 979 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 980                                u16 cmd_action, void *pdata_buf)
 981 {
 982         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 983         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 984
 985         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 986         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 987         cmd->result = 0;
 988         bt_access->action = cpu_to_le16(cmd_action);
 989
 990         switch (cmd_action) {
 991         case CMD_ACT_BT_ACCESS_ADD:
 992                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 993                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 994                 break;
 995         case CMD_ACT_BT_ACCESS_DEL:
 996                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 997                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 998                 break;
 999         case CMD_ACT_BT_ACCESS_LIST:
1000                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1001                 break;
1002         case CMD_ACT_BT_ACCESS_RESET:
1003                 break;
1004         case CMD_ACT_BT_ACCESS_SET_INVERT:
1005                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1006                 break;
1007         case CMD_ACT_BT_ACCESS_GET_INVERT:
1008                 break;
1009         default:
1010                 break;
1011         }
1012         lbs_deb_leave(LBS_DEB_CMD);
1013         return 0;
1014 }
1015
1016 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1017                                u16 cmd_action, void *pdata_buf)
1018 {
1019         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1020         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1021
1022         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1023         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1024         cmd->result = 0;
1025
1026         if (pdata_buf)
1027                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1028         else
1029                 memset(fwt_access, 0, sizeof(*fwt_access));
1030
1031         fwt_access->action = cpu_to_le16(cmd_action);
1032
1033         lbs_deb_leave(LBS_DEB_CMD);
1034         return 0;
1035 }
1036
1037 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1038                     struct cmd_ds_mesh_access *cmd)
1039 {
1040         int ret;
1041
1042         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1043
1044         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1045         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1046         cmd->hdr.result = 0;
1047
1048         cmd->action = cpu_to_le16(cmd_action);
1049
1050         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1051
1052         lbs_deb_leave(LBS_DEB_CMD);
1053         return ret;
1054 }
1055
1056 static int __lbs_mesh_config_send(struct lbs_private *priv,
1057                                   struct cmd_ds_mesh_config *cmd,
1058                                   uint16_t action, uint16_t type)
1059 {
1060         int ret;
1061
1062         lbs_deb_enter(LBS_DEB_CMD);
1063
1064         cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
1065         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1066         cmd->hdr.result = 0;
1067
1068         cmd->type = cpu_to_le16(type);
1069         cmd->action = cpu_to_le16(action);
1070
1071         ret = lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
1072
1073         lbs_deb_leave(LBS_DEB_CMD);
1074         return ret;
1075 }
1076
1077 int lbs_mesh_config_send(struct lbs_private *priv,
1078                          struct cmd_ds_mesh_config *cmd,
1079                          uint16_t action, uint16_t type)
1080 {
1081         int ret;
1082
1083         if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1084                 return -EOPNOTSUPP;
1085
1086         ret = __lbs_mesh_config_send(priv, cmd, action, type);
1087         return ret;
1088 }
1089
1090 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
1091  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
1092  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1093  * lbs_mesh_config_send.
1094  */
1095 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1096 {
1097         struct cmd_ds_mesh_config cmd;
1098         struct mrvl_meshie *ie;
1099
1100         memset(&cmd, 0, sizeof(cmd));
1101         cmd.channel = cpu_to_le16(chan);
1102         ie = (struct mrvl_meshie *)cmd.data;
1103
1104         switch (action) {
1105         case CMD_ACT_MESH_CONFIG_START:
1106                 ie->hdr.id = MFIE_TYPE_GENERIC;
1107                 ie->val.oui[0] = 0x00;
1108                 ie->val.oui[1] = 0x50;
1109                 ie->val.oui[2] = 0x43;
1110                 ie->val.type = MARVELL_MESH_IE_TYPE;
1111                 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1112                 ie->val.version = MARVELL_MESH_IE_VERSION;
1113                 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1114                 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1115                 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1116                 ie->val.mesh_id_len = priv->mesh_ssid_len;
1117                 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1118                 ie->hdr.len = sizeof(struct mrvl_meshie_val) -
1119                         IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1120                 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1121                 break;
1122         case CMD_ACT_MESH_CONFIG_STOP:
1123                 break;
1124         default:
1125                 return -1;
1126         }
1127         lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1128                     action, priv->mesh_tlv, chan,
1129                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1130
1131         return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1132 }
1133
1134 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1135                                 struct cmd_ds_command *cmd,
1136                                 u16 cmd_action)
1137 {
1138         struct cmd_ds_802_11_beacon_control
1139                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1140
1141         lbs_deb_enter(LBS_DEB_CMD);
1142         cmd->size =
1143             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1144                              + S_DS_GEN);
1145         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1146
1147         bcn_ctrl->action = cpu_to_le16(cmd_action);
1148         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1149         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1150
1151         lbs_deb_leave(LBS_DEB_CMD);
1152         return 0;
1153 }
1154
1155 static void lbs_queue_cmd(struct lbs_private *priv,
1156                           struct cmd_ctrl_node *cmdnode)
1157 {
1158         unsigned long flags;
1159         int addtail = 1;
1160
1161         lbs_deb_enter(LBS_DEB_HOST);
1162
1163         if (!cmdnode) {
1164                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1165                 goto done;
1166         }
1167         if (!cmdnode->cmdbuf->size) {
1168                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1169                 goto done;
1170         }
1171         cmdnode->result = 0;
1172
1173         /* Exit_PS command needs to be queued in the header always. */
1174         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1175                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1176
1177                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1178                         if (priv->psstate != PS_STATE_FULL_POWER)
1179                                 addtail = 0;
1180                 }
1181         }
1182
1183         spin_lock_irqsave(&priv->driver_lock, flags);
1184
1185         if (addtail)
1186                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1187         else
1188                 list_add(&cmdnode->list, &priv->cmdpendingq);
1189
1190         spin_unlock_irqrestore(&priv->driver_lock, flags);
1191
1192         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1193                      le16_to_cpu(cmdnode->cmdbuf->command));
1194
1195 done:
1196         lbs_deb_leave(LBS_DEB_HOST);
1197 }
1198
1199 static void lbs_submit_command(struct lbs_private *priv,
1200                                struct cmd_ctrl_node *cmdnode)
1201 {
1202         unsigned long flags;
1203         struct cmd_header *cmd;
1204         uint16_t cmdsize;
1205         uint16_t command;
1206         int timeo = 3 * HZ;
1207         int ret;
1208
1209         lbs_deb_enter(LBS_DEB_HOST);
1210
1211         cmd = cmdnode->cmdbuf;
1212
1213         spin_lock_irqsave(&priv->driver_lock, flags);
1214         priv->cur_cmd = cmdnode;
1215         priv->cur_cmd_retcode = 0;
1216         spin_unlock_irqrestore(&priv->driver_lock, flags);
1217
1218         cmdsize = le16_to_cpu(cmd->size);
1219         command = le16_to_cpu(cmd->command);
1220
1221         /* These commands take longer */
1222         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1223             command == CMD_802_11_AUTHENTICATE)
1224                 timeo = 5 * HZ;
1225
1226         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1227                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1228         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1229
1230         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1231
1232         if (ret) {
1233                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1234                 /* Let the timer kick in and retry, and potentially reset
1235                    the whole thing if the condition persists */
1236                 timeo = HZ/4;
1237         }
1238
1239         /* Setup the timer after transmit command */
1240         mod_timer(&priv->command_timer, jiffies + timeo);
1241
1242         lbs_deb_leave(LBS_DEB_HOST);
1243 }
1244
1245 /**
1246  *  This function inserts command node to cmdfreeq
1247  *  after cleans it. Requires priv->driver_lock held.
1248  */
1249 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1250                                          struct cmd_ctrl_node *cmdnode)
1251 {
1252         lbs_deb_enter(LBS_DEB_HOST);
1253
1254         if (!cmdnode)
1255                 goto out;
1256
1257         cmdnode->callback = NULL;
1258         cmdnode->callback_arg = 0;
1259
1260         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1261
1262         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1263  out:
1264         lbs_deb_leave(LBS_DEB_HOST);
1265 }
1266
1267 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1268         struct cmd_ctrl_node *ptempcmd)
1269 {
1270         unsigned long flags;
1271
1272         spin_lock_irqsave(&priv->driver_lock, flags);
1273         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1274         spin_unlock_irqrestore(&priv->driver_lock, flags);
1275 }
1276
1277 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1278                           int result)
1279 {
1280         if (cmd == priv->cur_cmd)
1281                 priv->cur_cmd_retcode = result;
1282
1283         cmd->result = result;
1284         cmd->cmdwaitqwoken = 1;
1285         wake_up_interruptible(&cmd->cmdwait_q);
1286
1287         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1288                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1289         priv->cur_cmd = NULL;
1290 }
1291
1292 int lbs_set_radio_control(struct lbs_private *priv)
1293 {
1294         int ret = 0;
1295         struct cmd_ds_802_11_radio_control cmd;
1296
1297         lbs_deb_enter(LBS_DEB_CMD);
1298
1299         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1300         cmd.action = cpu_to_le16(CMD_ACT_SET);
1301
1302         switch (priv->preamble) {
1303         case CMD_TYPE_SHORT_PREAMBLE:
1304                 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1305                 break;
1306
1307         case CMD_TYPE_LONG_PREAMBLE:
1308                 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1309                 break;
1310
1311         case CMD_TYPE_AUTO_PREAMBLE:
1312         default:
1313                 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1314                 break;
1315         }
1316
1317         if (priv->radioon)
1318                 cmd.control |= cpu_to_le16(TURN_ON_RF);
1319         else
1320                 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1321
1322         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1323                     priv->preamble);
1324
1325         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1326
1327         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1328         return ret;
1329 }
1330
1331 void lbs_set_mac_control(struct lbs_private *priv)
1332 {
1333         struct cmd_ds_mac_control cmd;
1334
1335         lbs_deb_enter(LBS_DEB_CMD);
1336
1337         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1338         cmd.action = cpu_to_le16(priv->mac_control);
1339         cmd.reserved = 0;
1340
1341         lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1342
1343         lbs_deb_leave(LBS_DEB_CMD);
1344 }
1345
1346 /**
1347  *  @brief This function prepare the command before send to firmware.
1348  *
1349  *  @param priv         A pointer to struct lbs_private structure
1350  *  @param cmd_no       command number
1351  *  @param cmd_action   command action: GET or SET
1352  *  @param wait_option  wait option: wait response or not
1353  *  @param cmd_oid      cmd oid: treated as sub command
1354  *  @param pdata_buf    A pointer to informaion buffer
1355  *  @return             0 or -1
1356  */
1357 int lbs_prepare_and_send_command(struct lbs_private *priv,
1358                           u16 cmd_no,
1359                           u16 cmd_action,
1360                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1361 {
1362         int ret = 0;
1363         struct cmd_ctrl_node *cmdnode;
1364         struct cmd_ds_command *cmdptr;
1365         unsigned long flags;
1366
1367         lbs_deb_enter(LBS_DEB_HOST);
1368
1369         if (!priv) {
1370                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1371                 ret = -1;
1372                 goto done;
1373         }
1374
1375         if (priv->surpriseremoved) {
1376                 lbs_deb_host("PREP_CMD: card removed\n");
1377                 ret = -1;
1378                 goto done;
1379         }
1380
1381         cmdnode = lbs_get_cmd_ctrl_node(priv);
1382
1383         if (cmdnode == NULL) {
1384                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1385
1386                 /* Wake up main thread to execute next command */
1387                 wake_up_interruptible(&priv->waitq);
1388                 ret = -1;
1389                 goto done;
1390         }
1391
1392         cmdnode->callback = NULL;
1393         cmdnode->callback_arg = (unsigned long)pdata_buf;
1394
1395         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1396
1397         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1398
1399         /* Set sequence number, command and INT option */
1400         priv->seqnum++;
1401         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1402
1403         cmdptr->command = cpu_to_le16(cmd_no);
1404         cmdptr->result = 0;
1405
1406         switch (cmd_no) {
1407         case CMD_802_11_PS_MODE:
1408                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1409                 break;
1410
1411         case CMD_802_11_ASSOCIATE:
1412         case CMD_802_11_REASSOCIATE:
1413                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1414                 break;
1415
1416         case CMD_802_11_DEAUTHENTICATE:
1417                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1418                 break;
1419
1420         case CMD_802_11_AD_HOC_START:
1421                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1422                 break;
1423
1424         case CMD_802_11_RESET:
1425                 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1426                 break;
1427
1428         case CMD_802_11_AUTHENTICATE:
1429                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1430                 break;
1431
1432         case CMD_802_11_SNMP_MIB:
1433                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1434                                                cmd_action, cmd_oid, pdata_buf);
1435                 break;
1436
1437         case CMD_MAC_REG_ACCESS:
1438         case CMD_BBP_REG_ACCESS:
1439         case CMD_RF_REG_ACCESS:
1440                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1441                 break;
1442
1443         case CMD_802_11_MONITOR_MODE:
1444                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1445                                           cmd_action, pdata_buf);
1446                 break;
1447
1448         case CMD_802_11_AD_HOC_JOIN:
1449                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1450                 break;
1451
1452         case CMD_802_11_RSSI:
1453                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1454                 break;
1455
1456         case CMD_802_11_AD_HOC_STOP:
1457                 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1458                 break;
1459
1460         case CMD_802_11_SET_AFC:
1461         case CMD_802_11_GET_AFC:
1462
1463                 cmdptr->command = cpu_to_le16(cmd_no);
1464                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1465                                            S_DS_GEN);
1466
1467                 memmove(&cmdptr->params.afc,
1468                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1469
1470                 ret = 0;
1471                 goto done;
1472
1473         case CMD_802_11D_DOMAIN_INFO:
1474                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1475                                                    cmd_no, cmd_action);
1476                 break;
1477
1478         case CMD_802_11_TPC_CFG:
1479                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1480                 cmdptr->size =
1481                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1482                                      S_DS_GEN);
1483
1484                 memmove(&cmdptr->params.tpccfg,
1485                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1486
1487                 ret = 0;
1488                 break;
1489         case CMD_802_11_LED_GPIO_CTRL:
1490                 {
1491                         struct mrvlietypes_ledgpio *gpio =
1492                             (struct mrvlietypes_ledgpio*)
1493                             cmdptr->params.ledgpio.data;
1494
1495                         memmove(&cmdptr->params.ledgpio,
1496                                 pdata_buf,
1497                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1498
1499                         cmdptr->command =
1500                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1501
1502 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1503                         cmdptr->size =
1504                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1505                                 + S_DS_GEN
1506                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1507                         gpio->header.len = gpio->header.len;
1508
1509                         ret = 0;
1510                         break;
1511                 }
1512
1513         case CMD_BT_ACCESS:
1514                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1515                 break;
1516
1517         case CMD_FWT_ACCESS:
1518                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1519                 break;
1520
1521         case CMD_GET_TSF:
1522                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1523                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1524                                            S_DS_GEN);
1525                 ret = 0;
1526                 break;
1527         case CMD_802_11_BEACON_CTRL:
1528                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1529                 break;
1530         default:
1531                 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1532                 ret = -1;
1533                 break;
1534         }
1535
1536         /* return error, since the command preparation failed */
1537         if (ret != 0) {
1538                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1539                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1540                 ret = -1;
1541                 goto done;
1542         }
1543
1544         cmdnode->cmdwaitqwoken = 0;
1545
1546         lbs_queue_cmd(priv, cmdnode);
1547         wake_up_interruptible(&priv->waitq);
1548
1549         if (wait_option & CMD_OPTION_WAITFORRSP) {
1550                 lbs_deb_host("PREP_CMD: wait for response\n");
1551                 might_sleep();
1552                 wait_event_interruptible(cmdnode->cmdwait_q,
1553                                          cmdnode->cmdwaitqwoken);
1554         }
1555
1556         spin_lock_irqsave(&priv->driver_lock, flags);
1557         if (priv->cur_cmd_retcode) {
1558                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1559                        priv->cur_cmd_retcode);
1560                 priv->cur_cmd_retcode = 0;
1561                 ret = -1;
1562         }
1563         spin_unlock_irqrestore(&priv->driver_lock, flags);
1564
1565 done:
1566         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1567         return ret;
1568 }
1569
1570 /**
1571  *  @brief This function allocates the command buffer and link
1572  *  it to command free queue.
1573  *
1574  *  @param priv         A pointer to struct lbs_private structure
1575  *  @return             0 or -1
1576  */
1577 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1578 {
1579         int ret = 0;
1580         u32 bufsize;
1581         u32 i;
1582         struct cmd_ctrl_node *cmdarray;
1583
1584         lbs_deb_enter(LBS_DEB_HOST);
1585
1586         /* Allocate and initialize the command array */
1587         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1588         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1589                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1590                 ret = -1;
1591                 goto done;
1592         }
1593         priv->cmd_array = cmdarray;
1594
1595         /* Allocate and initialize each command buffer in the command array */
1596         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1597                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1598                 if (!cmdarray[i].cmdbuf) {
1599                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1600                         ret = -1;
1601                         goto done;
1602                 }
1603         }
1604
1605         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1606                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1607                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1608         }
1609         ret = 0;
1610
1611 done:
1612         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1613         return ret;
1614 }
1615
1616 /**
1617  *  @brief This function frees the command buffer.
1618  *
1619  *  @param priv         A pointer to struct lbs_private structure
1620  *  @return             0 or -1
1621  */
1622 int lbs_free_cmd_buffer(struct lbs_private *priv)
1623 {
1624         struct cmd_ctrl_node *cmdarray;
1625         unsigned int i;
1626
1627         lbs_deb_enter(LBS_DEB_HOST);
1628
1629         /* need to check if cmd array is allocated or not */
1630         if (priv->cmd_array == NULL) {
1631                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1632                 goto done;
1633         }
1634
1635         cmdarray = priv->cmd_array;
1636
1637         /* Release shared memory buffers */
1638         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1639                 if (cmdarray[i].cmdbuf) {
1640                         kfree(cmdarray[i].cmdbuf);
1641                         cmdarray[i].cmdbuf = NULL;
1642                 }
1643         }
1644
1645         /* Release cmd_ctrl_node */
1646         if (priv->cmd_array) {
1647                 kfree(priv->cmd_array);
1648                 priv->cmd_array = NULL;
1649         }
1650
1651 done:
1652         lbs_deb_leave(LBS_DEB_HOST);
1653         return 0;
1654 }
1655
1656 /**
1657  *  @brief This function gets a free command node if available in
1658  *  command free queue.
1659  *
1660  *  @param priv         A pointer to struct lbs_private structure
1661  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1662  */
1663 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1664 {
1665         struct cmd_ctrl_node *tempnode;
1666         unsigned long flags;
1667
1668         lbs_deb_enter(LBS_DEB_HOST);
1669
1670         if (!priv)
1671                 return NULL;
1672
1673         spin_lock_irqsave(&priv->driver_lock, flags);
1674
1675         if (!list_empty(&priv->cmdfreeq)) {
1676                 tempnode = list_first_entry(&priv->cmdfreeq,
1677                                             struct cmd_ctrl_node, list);
1678                 list_del(&tempnode->list);
1679         } else {
1680                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1681                 tempnode = NULL;
1682         }
1683
1684         spin_unlock_irqrestore(&priv->driver_lock, flags);
1685
1686         lbs_deb_leave(LBS_DEB_HOST);
1687         return tempnode;
1688 }
1689
1690 /**
1691  *  @brief This function executes next command in command
1692  *  pending queue. It will put fimware back to PS mode
1693  *  if applicable.
1694  *
1695  *  @param priv     A pointer to struct lbs_private structure
1696  *  @return        0 or -1
1697  */
1698 int lbs_execute_next_command(struct lbs_private *priv)
1699 {
1700         struct cmd_ctrl_node *cmdnode = NULL;
1701         struct cmd_header *cmd;
1702         unsigned long flags;
1703         int ret = 0;
1704
1705         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1706          * only caller to us is lbs_thread() and we get even when a
1707          * data packet is received */
1708         lbs_deb_enter(LBS_DEB_THREAD);
1709
1710         spin_lock_irqsave(&priv->driver_lock, flags);
1711
1712         if (priv->cur_cmd) {
1713                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1714                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1715                 ret = -1;
1716                 goto done;
1717         }
1718
1719         if (!list_empty(&priv->cmdpendingq)) {
1720                 cmdnode = list_first_entry(&priv->cmdpendingq,
1721                                            struct cmd_ctrl_node, list);
1722         }
1723
1724         spin_unlock_irqrestore(&priv->driver_lock, flags);
1725
1726         if (cmdnode) {
1727                 cmd = cmdnode->cmdbuf;
1728
1729                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1730                         if ((priv->psstate == PS_STATE_SLEEP) ||
1731                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1732                                 lbs_deb_host(
1733                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1734                                        le16_to_cpu(cmd->command),
1735                                        priv->psstate);
1736                                 ret = -1;
1737                                 goto done;
1738                         }
1739                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1740                                      "0x%04x in psstate %d\n",
1741                                      le16_to_cpu(cmd->command), priv->psstate);
1742                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1743                         /*
1744                          * 1. Non-PS command:
1745                          * Queue it. set needtowakeup to TRUE if current state
1746                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1747                          * 2. PS command but not Exit_PS:
1748                          * Ignore it.
1749                          * 3. PS command Exit_PS:
1750                          * Set needtowakeup to TRUE if current state is SLEEP,
1751                          * otherwise send this command down to firmware
1752                          * immediately.
1753                          */
1754                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1755                                 /*  Prepare to send Exit PS,
1756                                  *  this non PS command will be sent later */
1757                                 if ((priv->psstate == PS_STATE_SLEEP)
1758                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1759                                     ) {
1760                                         /* w/ new scheme, it will not reach here.
1761                                            since it is blocked in main_thread. */
1762                                         priv->needtowakeup = 1;
1763                                 } else
1764                                         lbs_ps_wakeup(priv, 0);
1765
1766                                 ret = 0;
1767                                 goto done;
1768                         } else {
1769                                 /*
1770                                  * PS command. Ignore it if it is not Exit_PS.
1771                                  * otherwise send it down immediately.
1772                                  */
1773                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1774
1775                                 lbs_deb_host(
1776                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1777                                        psm->action);
1778                                 if (psm->action !=
1779                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1780                                         lbs_deb_host(
1781                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1782                                         list_del(&cmdnode->list);
1783                                         spin_lock_irqsave(&priv->driver_lock, flags);
1784                                         lbs_complete_command(priv, cmdnode, 0);
1785                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1786
1787                                         ret = 0;
1788                                         goto done;
1789                                 }
1790
1791                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1792                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1793                                         lbs_deb_host(
1794                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1795                                         list_del(&cmdnode->list);
1796                                         spin_lock_irqsave(&priv->driver_lock, flags);
1797                                         lbs_complete_command(priv, cmdnode, 0);
1798                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1799                                         priv->needtowakeup = 1;
1800
1801                                         ret = 0;
1802                                         goto done;
1803                                 }
1804
1805                                 lbs_deb_host(
1806                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1807                         }
1808                 }
1809                 list_del(&cmdnode->list);
1810                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1811                             le16_to_cpu(cmd->command));
1812                 lbs_submit_command(priv, cmdnode);
1813         } else {
1814                 /*
1815                  * check if in power save mode, if yes, put the device back
1816                  * to PS mode
1817                  */
1818                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1819                     (priv->psstate == PS_STATE_FULL_POWER) &&
1820                     ((priv->connect_status == LBS_CONNECTED) ||
1821                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1822                         if (priv->secinfo.WPAenabled ||
1823                             priv->secinfo.WPA2enabled) {
1824                                 /* check for valid WPA group keys */
1825                                 if (priv->wpa_mcast_key.len ||
1826                                     priv->wpa_unicast_key.len) {
1827                                         lbs_deb_host(
1828                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1829                                                " go back to PS_SLEEP");
1830                                         lbs_ps_sleep(priv, 0);
1831                                 }
1832                         } else {
1833                                 lbs_deb_host(
1834                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1835                                        "go back to PS_SLEEP");
1836                                 lbs_ps_sleep(priv, 0);
1837                         }
1838                 }
1839         }
1840
1841         ret = 0;
1842 done:
1843         lbs_deb_leave(LBS_DEB_THREAD);
1844         return ret;
1845 }
1846
1847 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1848 {
1849         union iwreq_data iwrq;
1850         u8 buf[50];
1851
1852         lbs_deb_enter(LBS_DEB_WEXT);
1853
1854         memset(&iwrq, 0, sizeof(union iwreq_data));
1855         memset(buf, 0, sizeof(buf));
1856
1857         snprintf(buf, sizeof(buf) - 1, "%s", str);
1858
1859         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1860
1861         /* Send Event to upper layer */
1862         lbs_deb_wext("event indication string %s\n", (char *)buf);
1863         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1864         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1865
1866         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1867
1868         lbs_deb_leave(LBS_DEB_WEXT);
1869 }
1870
1871 static void lbs_send_confirmsleep(struct lbs_private *priv)
1872 {
1873         unsigned long flags;
1874         int ret;
1875
1876         lbs_deb_enter(LBS_DEB_HOST);
1877         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1878                 sizeof(confirm_sleep));
1879
1880         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1881                 sizeof(confirm_sleep));
1882         if (ret) {
1883                 lbs_pr_alert("confirm_sleep failed\n");
1884                 goto out;
1885         }
1886
1887         spin_lock_irqsave(&priv->driver_lock, flags);
1888
1889         /* We don't get a response on the sleep-confirmation */
1890         priv->dnld_sent = DNLD_RES_RECEIVED;
1891
1892         /* If nothing to do, go back to sleep (?) */
1893         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1894                 priv->psstate = PS_STATE_SLEEP;
1895
1896         spin_unlock_irqrestore(&priv->driver_lock, flags);
1897
1898 out:
1899         lbs_deb_leave(LBS_DEB_HOST);
1900 }
1901
1902 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1903 {
1904         lbs_deb_enter(LBS_DEB_HOST);
1905
1906         /*
1907          * PS is currently supported only in Infrastructure mode
1908          * Remove this check if it is to be supported in IBSS mode also
1909          */
1910
1911         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1912                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1913
1914         lbs_deb_leave(LBS_DEB_HOST);
1915 }
1916
1917 /**
1918  *  @brief This function sends Exit_PS command to firmware.
1919  *
1920  *  @param priv         A pointer to struct lbs_private structure
1921  *  @param wait_option  wait response or not
1922  *  @return             n/a
1923  */
1924 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1925 {
1926         __le32 Localpsmode;
1927
1928         lbs_deb_enter(LBS_DEB_HOST);
1929
1930         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1931
1932         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1933                               CMD_SUBCMD_EXIT_PS,
1934                               wait_option, 0, &Localpsmode);
1935
1936         lbs_deb_leave(LBS_DEB_HOST);
1937 }
1938
1939 /**
1940  *  @brief This function checks condition and prepares to
1941  *  send sleep confirm command to firmware if ok.
1942  *
1943  *  @param priv         A pointer to struct lbs_private structure
1944  *  @param psmode       Power Saving mode
1945  *  @return             n/a
1946  */
1947 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1948 {
1949         unsigned long flags =0;
1950         int allowed = 1;
1951
1952         lbs_deb_enter(LBS_DEB_HOST);
1953
1954         spin_lock_irqsave(&priv->driver_lock, flags);
1955         if (priv->dnld_sent) {
1956                 allowed = 0;
1957                 lbs_deb_host("dnld_sent was set\n");
1958         }
1959
1960         /* In-progress command? */
1961         if (priv->cur_cmd) {
1962                 allowed = 0;
1963                 lbs_deb_host("cur_cmd was set\n");
1964         }
1965
1966         /* Pending events or command responses? */
1967         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1968                 allowed = 0;
1969                 lbs_deb_host("pending events or command responses\n");
1970         }
1971         spin_unlock_irqrestore(&priv->driver_lock, flags);
1972
1973         if (allowed) {
1974                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1975                 lbs_send_confirmsleep(priv);
1976         } else {
1977                 lbs_deb_host("sleep confirm has been delayed\n");
1978         }
1979
1980         lbs_deb_leave(LBS_DEB_HOST);
1981 }
1982
1983
1984 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1985         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1986         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1987         unsigned long callback_arg)
1988 {
1989         struct cmd_ctrl_node *cmdnode;
1990
1991         lbs_deb_enter(LBS_DEB_HOST);
1992
1993         if (priv->surpriseremoved) {
1994                 lbs_deb_host("PREP_CMD: card removed\n");
1995                 cmdnode = ERR_PTR(-ENOENT);
1996                 goto done;
1997         }
1998
1999         cmdnode = lbs_get_cmd_ctrl_node(priv);
2000         if (cmdnode == NULL) {
2001                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2002
2003                 /* Wake up main thread to execute next command */
2004                 wake_up_interruptible(&priv->waitq);
2005                 cmdnode = ERR_PTR(-ENOBUFS);
2006                 goto done;
2007         }
2008
2009         cmdnode->callback = callback;
2010         cmdnode->callback_arg = callback_arg;
2011
2012         /* Copy the incoming command to the buffer */
2013         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2014
2015         /* Set sequence number, clean result, move to buffer */
2016         priv->seqnum++;
2017         cmdnode->cmdbuf->command = cpu_to_le16(command);
2018         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2019         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2020         cmdnode->cmdbuf->result  = 0;
2021
2022         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2023
2024         cmdnode->cmdwaitqwoken = 0;
2025         lbs_queue_cmd(priv, cmdnode);
2026         wake_up_interruptible(&priv->waitq);
2027
2028  done:
2029         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2030         return cmdnode;
2031 }
2032
2033 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2034         struct cmd_header *in_cmd, int in_cmd_size)
2035 {
2036         lbs_deb_enter(LBS_DEB_CMD);
2037         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2038                 lbs_cmd_async_callback, 0);
2039         lbs_deb_leave(LBS_DEB_CMD);
2040 }
2041
2042 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2043               struct cmd_header *in_cmd, int in_cmd_size,
2044               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2045               unsigned long callback_arg)
2046 {
2047         struct cmd_ctrl_node *cmdnode;
2048         unsigned long flags;
2049         int ret = 0;
2050
2051         lbs_deb_enter(LBS_DEB_HOST);
2052
2053         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2054                                   callback, callback_arg);
2055         if (IS_ERR(cmdnode)) {
2056                 ret = PTR_ERR(cmdnode);
2057                 goto done;
2058         }
2059
2060         might_sleep();
2061         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2062
2063         spin_lock_irqsave(&priv->driver_lock, flags);
2064         ret = cmdnode->result;
2065         if (ret)
2066                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2067                             command, ret);
2068
2069         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2070         spin_unlock_irqrestore(&priv->driver_lock, flags);
2071
2072 done:
2073         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2074         return ret;
2075 }
2076 EXPORT_SYMBOL_GPL(__lbs_cmd);
2077
2078