Pileus Git - ~andy/linux/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
  91         lbs_deb_enter(LBS_DEB_CMD);
  92
  93         memset(&cmd, 0, sizeof(cmd));
  94         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
  95         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
  96         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
  97         if (ret)
  98                 goto out;
  99
 100         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
 101
 102         /* The firmware release is in an interesting format: the patch
 103          * level is in the most significant nibble ... so fix that: */
 104         priv->fwrelease = le32_to_cpu(cmd.fwrelease);
 105         priv->fwrelease = (priv->fwrelease << 8) |
 106                 (priv->fwrelease >> 24 & 0xff);
 107
 108         /* Some firmware capabilities:
 109          * CF card    firmware 5.0.16p0:   cap 0x00000303
 110          * USB dongle firmware 5.110.17p2: cap 0x00000303
 111          */
 112         lbs_pr_info("%pM, fw %u.%u.%up%u, cap 0x%08x\n",
 113                 cmd.permanentaddr,
 114                 priv->fwrelease >> 24 & 0xff,
 115                 priv->fwrelease >> 16 & 0xff,
 116                 priv->fwrelease >>  8 & 0xff,
 117                 priv->fwrelease       & 0xff,
 118                 priv->fwcapinfo);
 119         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
 120                     cmd.hwifversion, cmd.version);
 121
 122         /* Clamp region code to 8-bit since FW spec indicates that it should
 123          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
 124          * returns non-zero high 8 bits here.
 125          */
 126         priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
 127
 128         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
 129                 /* use the region code to search for the index */
 130                 if (priv->regioncode == lbs_region_code_to_index[i])
 131                         break;
 132         }
 133
 134         /* if it's unidentified region code, use the default (USA) */
 135         if (i >= MRVDRV_MAX_REGION_CODE) {
 136                 priv->regioncode = 0x10;
 137                 lbs_pr_info("unidentified region code; using the default (USA)\n");
 138         }
 139
 140         if (priv->current_addr[0] == 0xff)
 141                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
 142
 143         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
 144         if (priv->mesh_dev)
 145                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 146
 147         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
 148                 ret = -1;
 149                 goto out;
 150         }
 151
 152         if (lbs_set_universaltable(priv, 0)) {
 153                 ret = -1;
 154                 goto out;
 155         }
 156
 157 out:
 158         lbs_deb_leave(LBS_DEB_CMD);
 159         return ret;
 160 }
 161
 162 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
 163 {
 164         struct cmd_ds_host_sleep cmd_config;
 165         int ret;
 166
 167         cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
 168         cmd_config.criteria = cpu_to_le32(criteria);
 169         cmd_config.gpio = priv->wol_gpio;
 170         cmd_config.gap = priv->wol_gap;
 171
 172         ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
 173         if (!ret) {
 174                 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
 175                 priv->wol_criteria = criteria;
 176         } else {
 177                 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
 178         }
 179
 180         return ret;
 181 }
 182 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
 183
 184 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
 185                                    u16 cmd_action)
 186 {
 187         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
 188
 189         lbs_deb_enter(LBS_DEB_CMD);
 190
 191         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
 192         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
 193                                 S_DS_GEN);
 194         psm->action = cpu_to_le16(cmd_action);
 195         psm->multipledtim = 0;
 196         switch (cmd_action) {
 197         case CMD_SUBCMD_ENTER_PS:
 198                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
 199
 200                 psm->locallisteninterval = 0;
 201                 psm->nullpktinterval = 0;
 202                 psm->multipledtim =
 203                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
 204                 break;
 205
 206         case CMD_SUBCMD_EXIT_PS:
 207                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
 208                 break;
 209
 210         case CMD_SUBCMD_SLEEP_CONFIRMED:
 211                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
 212                 break;
 213
 214         default:
 215                 break;
 216         }
 217
 218         lbs_deb_leave(LBS_DEB_CMD);
 219         return 0;
 220 }
 221
 222 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
 223                                       uint16_t cmd_action, uint16_t *timeout)
 224 {
 225         struct cmd_ds_802_11_inactivity_timeout cmd;
 226         int ret;
 227
 228         lbs_deb_enter(LBS_DEB_CMD);
 229
 230         cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
 231         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 232
 233         cmd.action = cpu_to_le16(cmd_action);
 234
 235         if (cmd_action == CMD_ACT_SET)
 236                 cmd.timeout = cpu_to_le16(*timeout);
 237         else
 238                 cmd.timeout = 0;
 239
 240         ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
 241
 242         if (!ret)
 243                 *timeout = le16_to_cpu(cmd.timeout);
 244
 245         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 246         return 0;
 247 }
 248
 249 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
 250                                 struct sleep_params *sp)
 251 {
 252         struct cmd_ds_802_11_sleep_params cmd;
 253         int ret;
 254
 255         lbs_deb_enter(LBS_DEB_CMD);
 256
 257         if (cmd_action == CMD_ACT_GET) {
 258                 memset(&cmd, 0, sizeof(cmd));
 259         } else {
 260                 cmd.error = cpu_to_le16(sp->sp_error);
 261                 cmd.offset = cpu_to_le16(sp->sp_offset);
 262                 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
 263                 cmd.calcontrol = sp->sp_calcontrol;
 264                 cmd.externalsleepclk = sp->sp_extsleepclk;
 265                 cmd.reserved = cpu_to_le16(sp->sp_reserved);
 266         }
 267         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 268         cmd.action = cpu_to_le16(cmd_action);
 269
 270         ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
 271
 272         if (!ret) {
 273                 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
 274                             "calcontrol 0x%x extsleepclk 0x%x\n",
 275                             le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
 276                             le16_to_cpu(cmd.stabletime), cmd.calcontrol,
 277                             cmd.externalsleepclk);
 278
 279                 sp->sp_error = le16_to_cpu(cmd.error);
 280                 sp->sp_offset = le16_to_cpu(cmd.offset);
 281                 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
 282                 sp->sp_calcontrol = cmd.calcontrol;
 283                 sp->sp_extsleepclk = cmd.externalsleepclk;
 284                 sp->sp_reserved = le16_to_cpu(cmd.reserved);
 285         }
 286
 287         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 288         return 0;
 289 }
 290
 291 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
 292                            struct assoc_request *assoc)
 293 {
 294         struct cmd_ds_802_11_set_wep cmd;
 295         int ret = 0;
 296
 297         lbs_deb_enter(LBS_DEB_CMD);
 298
 299         memset(&cmd, 0, sizeof(cmd));
 300         cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
 301         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 302
 303         cmd.action = cpu_to_le16(cmd_action);
 304
 305         if (cmd_action == CMD_ACT_ADD) {
 306                 int i;
 307
 308                 /* default tx key index */
 309                 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
 310                                            CMD_WEP_KEY_INDEX_MASK);
 311
 312                 /* Copy key types and material to host command structure */
 313                 for (i = 0; i < 4; i++) {
 314                         struct enc_key *pkey = &assoc->wep_keys[i];
 315
 316                         switch (pkey->len) {
 317                         case KEY_LEN_WEP_40:
 318                                 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
 319                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 320                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
 321                                 break;
 322                         case KEY_LEN_WEP_104:
 323                                 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
 324                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
 325                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
 326                                 break;
 327                         case 0:
 328                                 break;
 329                         default:
 330                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
 331                                             i, pkey->len);
 332                                 ret = -1;
 333                                 goto done;
 334                                 break;
 335                         }
 336                 }
 337         } else if (cmd_action == CMD_ACT_REMOVE) {
 338                 /* ACT_REMOVE clears _all_ WEP keys */
 339
 340                 /* default tx key index */
 341                 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
 342                                            CMD_WEP_KEY_INDEX_MASK);
 343                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
 344         }
 345
 346         ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
 347 done:
 348         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 349         return ret;
 350 }
 351
 352 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
 353                               uint16_t *enable)
 354 {
 355         struct cmd_ds_802_11_enable_rsn cmd;
 356         int ret;
 357
 358         lbs_deb_enter(LBS_DEB_CMD);
 359
 360         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 361         cmd.action = cpu_to_le16(cmd_action);
 362
 363         if (cmd_action == CMD_ACT_GET)
 364                 cmd.enable = 0;
 365         else {
 366                 if (*enable)
 367                         cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
 368                 else
 369                         cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
 370                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
 371         }
 372
 373         ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
 374         if (!ret && cmd_action == CMD_ACT_GET)
 375                 *enable = le16_to_cpu(cmd.enable);
 376
 377         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 378         return ret;
 379 }
 380
 381 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
 382                             struct enc_key *key)
 383 {
 384         lbs_deb_enter(LBS_DEB_CMD);
 385
 386         if (key->flags & KEY_INFO_WPA_ENABLED)
 387                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
 388         if (key->flags & KEY_INFO_WPA_UNICAST)
 389                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
 390         if (key->flags & KEY_INFO_WPA_MCAST)
 391                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
 392
 393         keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
 394         keyparam->keytypeid = cpu_to_le16(key->type);
 395         keyparam->keylen = cpu_to_le16(key->len);
 396         memcpy(keyparam->key, key->key, key->len);
 397
 398         /* Length field doesn't include the {type,length} header */
 399         keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
 400         lbs_deb_leave(LBS_DEB_CMD);
 401 }
 402
 403 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
 404                                 struct assoc_request *assoc)
 405 {
 406         struct cmd_ds_802_11_key_material cmd;
 407         int ret = 0;
 408         int index = 0;
 409
 410         lbs_deb_enter(LBS_DEB_CMD);
 411
 412         cmd.action = cpu_to_le16(cmd_action);
 413         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 414
 415         if (cmd_action == CMD_ACT_GET) {
 416                 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
 417         } else {
 418                 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
 419
 420                 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
 421                         set_one_wpa_key(&cmd.keyParamSet[index],
 422                                         &assoc->wpa_unicast_key);
 423                         index++;
 424                 }
 425
 426                 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
 427                         set_one_wpa_key(&cmd.keyParamSet[index],
 428                                         &assoc->wpa_mcast_key);
 429                         index++;
 430                 }
 431
 432                 /* The common header and as many keys as we included */
 433                 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
 434                                                     keyParamSet[index]));
 435         }
 436         ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
 437         /* Copy the returned key to driver private data */
 438         if (!ret && cmd_action == CMD_ACT_GET) {
 439                 void *buf_ptr = cmd.keyParamSet;
 440                 void *resp_end = &(&cmd)[1];
 441
 442                 while (buf_ptr < resp_end) {
 443                         struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
 444                         struct enc_key *key;
 445                         uint16_t param_set_len = le16_to_cpu(keyparam->length);
 446                         uint16_t key_len = le16_to_cpu(keyparam->keylen);
 447                         uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
 448                         uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
 449                         void *end;
 450
 451                         end = (void *)keyparam + sizeof(keyparam->type)
 452                                 + sizeof(keyparam->length) + param_set_len;
 453
 454                         /* Make sure we don't access past the end of the IEs */
 455                         if (end > resp_end)
 456                                 break;
 457
 458                         if (key_flags & KEY_INFO_WPA_UNICAST)
 459                                 key = &priv->wpa_unicast_key;
 460                         else if (key_flags & KEY_INFO_WPA_MCAST)
 461                                 key = &priv->wpa_mcast_key;
 462                         else
 463                                 break;
 464
 465                         /* Copy returned key into driver */
 466                         memset(key, 0, sizeof(struct enc_key));
 467                         if (key_len > sizeof(key->key))
 468                                 break;
 469                         key->type = key_type;
 470                         key->flags = key_flags;
 471                         key->len = key_len;
 472                         memcpy(key->key, keyparam->key, key->len);
 473
 474                         buf_ptr = end + 1;
 475                 }
 476         }
 477
 478         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 479         return ret;
 480 }
 481
 482 /**
 483  *  @brief Set an SNMP MIB value
 484  *
 485  *  @param priv         A pointer to struct lbs_private structure
 486  *  @param oid          The OID to set in the firmware
 487  *  @param val          Value to set the OID to
 488  *
 489  *  @return             0 on success, error on failure
 490  */
 491 int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
 492 {
 493         struct cmd_ds_802_11_snmp_mib cmd;
 494         int ret;
 495
 496         lbs_deb_enter(LBS_DEB_CMD);
 497
 498         memset(&cmd, 0, sizeof (cmd));
 499         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 500         cmd.action = cpu_to_le16(CMD_ACT_SET);
 501         cmd.oid = cpu_to_le16((u16) oid);
 502
 503         switch (oid) {
 504         case SNMP_MIB_OID_BSS_TYPE:
 505                 cmd.bufsize = cpu_to_le16(sizeof(u8));
 506                 cmd.value[0] = (val == IW_MODE_ADHOC) ? 2 : 1;
 507                 break;
 508         case SNMP_MIB_OID_11D_ENABLE:
 509         case SNMP_MIB_OID_FRAG_THRESHOLD:
 510         case SNMP_MIB_OID_RTS_THRESHOLD:
 511         case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
 512         case SNMP_MIB_OID_LONG_RETRY_LIMIT:
 513                 cmd.bufsize = cpu_to_le16(sizeof(u16));
 514                 *((__le16 *)(&cmd.value)) = cpu_to_le16(val);
 515                 break;
 516         default:
 517                 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
 518                 ret = -EINVAL;
 519                 goto out;
 520         }
 521
 522         lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
 523                     le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
 524
 525         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 526
 527 out:
 528         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 529         return ret;
 530 }
 531
 532 /**
 533  *  @brief Get an SNMP MIB value
 534  *
 535  *  @param priv         A pointer to struct lbs_private structure
 536  *  @param oid          The OID to retrieve from the firmware
 537  *  @param out_val      Location for the returned value
 538  *
 539  *  @return             0 on success, error on failure
 540  */
 541 int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
 542 {
 543         struct cmd_ds_802_11_snmp_mib cmd;
 544         int ret;
 545
 546         lbs_deb_enter(LBS_DEB_CMD);
 547
 548         memset(&cmd, 0, sizeof (cmd));
 549         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 550         cmd.action = cpu_to_le16(CMD_ACT_GET);
 551         cmd.oid = cpu_to_le16(oid);
 552
 553         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 554         if (ret)
 555                 goto out;
 556
 557         switch (le16_to_cpu(cmd.bufsize)) {
 558         case sizeof(u8):
 559                 if (oid == SNMP_MIB_OID_BSS_TYPE) {
 560                         if (cmd.value[0] == 2)
 561                                 *out_val = IW_MODE_ADHOC;
 562                         else
 563                                 *out_val = IW_MODE_INFRA;
 564                 } else
 565                         *out_val = cmd.value[0];
 566                 break;
 567         case sizeof(u16):
 568                 *out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
 569                 break;
 570         default:
 571                 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
 572                             oid, le16_to_cpu(cmd.bufsize));
 573                 break;
 574         }
 575
 576 out:
 577         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 578         return ret;
 579 }
 580
 581 /**
 582  *  @brief Get the min, max, and current TX power
 583  *
 584  *  @param priv         A pointer to struct lbs_private structure
 585  *  @param curlevel     Current power level in dBm
 586  *  @param minlevel     Minimum supported power level in dBm (optional)
 587  *  @param maxlevel     Maximum supported power level in dBm (optional)
 588  *
 589  *  @return             0 on success, error on failure
 590  */
 591 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
 592                      s16 *maxlevel)
 593 {
 594         struct cmd_ds_802_11_rf_tx_power cmd;
 595         int ret;
 596
 597         lbs_deb_enter(LBS_DEB_CMD);
 598
 599         memset(&cmd, 0, sizeof(cmd));
 600         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 601         cmd.action = cpu_to_le16(CMD_ACT_GET);
 602
 603         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 604         if (ret == 0) {
 605                 *curlevel = le16_to_cpu(cmd.curlevel);
 606                 if (minlevel)
 607                         *minlevel = cmd.minlevel;
 608                 if (maxlevel)
 609                         *maxlevel = cmd.maxlevel;
 610         }
 611
 612         lbs_deb_leave(LBS_DEB_CMD);
 613         return ret;
 614 }
 615
 616 /**
 617  *  @brief Set the TX power
 618  *
 619  *  @param priv         A pointer to struct lbs_private structure
 620  *  @param dbm          The desired power level in dBm
 621  *
 622  *  @return             0 on success, error on failure
 623  */
 624 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
 625 {
 626         struct cmd_ds_802_11_rf_tx_power cmd;
 627         int ret;
 628
 629         lbs_deb_enter(LBS_DEB_CMD);
 630
 631         memset(&cmd, 0, sizeof(cmd));
 632         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 633         cmd.action = cpu_to_le16(CMD_ACT_SET);
 634         cmd.curlevel = cpu_to_le16(dbm);
 635
 636         lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
 637
 638         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 639
 640         lbs_deb_leave(LBS_DEB_CMD);
 641         return ret;
 642 }
 643
 644 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 645                                       u16 cmd_action, void *pdata_buf)
 646 {
 647         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 648
 649         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 650         cmd->size =
 651             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 652                              S_DS_GEN);
 653
 654         monitor->action = cpu_to_le16(cmd_action);
 655         if (cmd_action == CMD_ACT_SET) {
 656                 monitor->mode =
 657                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 658         }
 659
 660         return 0;
 661 }
 662
 663 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
 664 {
 665 /*              Bit     Rate
 666 *               15:13 Reserved
 667 *               12    54 Mbps
 668 *               11    48 Mbps
 669 *               10    36 Mbps
 670 *               9     24 Mbps
 671 *               8     18 Mbps
 672 *               7     12 Mbps
 673 *               6     9 Mbps
 674 *               5     6 Mbps
 675 *               4     Reserved
 676 *               3     11 Mbps
 677 *               2     5.5 Mbps
 678 *               1     2 Mbps
 679 *               0     1 Mbps
 680 **/
 681
 682         uint16_t ratemask;
 683         int i = lbs_data_rate_to_fw_index(rate);
 684         if (lower_rates_ok)
 685                 ratemask = (0x1fef >> (12 - i));
 686         else
 687                 ratemask = (1 << i);
 688         return cpu_to_le16(ratemask);
 689 }
 690
 691 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 692                                       uint16_t cmd_action)
 693 {
 694         struct cmd_ds_802_11_rate_adapt_rateset cmd;
 695         int ret;
 696
 697         lbs_deb_enter(LBS_DEB_CMD);
 698
 699         if (!priv->cur_rate && !priv->enablehwauto)
 700                 return -EINVAL;
 701
 702         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 703
 704         cmd.action = cpu_to_le16(cmd_action);
 705         cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
 706         cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
 707         ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
 708         if (!ret && cmd_action == CMD_ACT_GET) {
 709                 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
 710                 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
 711         }
 712
 713         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 714         return ret;
 715 }
 716 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
 717
 718 /**
 719  *  @brief Set the data rate
 720  *
 721  *  @param priv         A pointer to struct lbs_private structure
 722  *  @param rate         The desired data rate, or 0 to clear a locked rate
 723  *
 724  *  @return             0 on success, error on failure
 725  */
 726 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 727 {
 728         struct cmd_ds_802_11_data_rate cmd;
 729         int ret = 0;
 730
 731         lbs_deb_enter(LBS_DEB_CMD);
 732
 733         memset(&cmd, 0, sizeof(cmd));
 734         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 735
 736         if (rate > 0) {
 737                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 738                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 739                 if (cmd.rates[0] == 0) {
 740                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 741                                     " 0x%02X\n", rate);
 742                         ret = 0;
 743                         goto out;
 744                 }
 745                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 746         } else {
 747                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 748                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 749         }
 750
 751         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 752         if (ret)
 753                 goto out;
 754
 755         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 756
 757         /* FIXME: get actual rates FW can do if this command actually returns
 758          * all data rates supported.
 759          */
 760         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 761         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 762
 763 out:
 764         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 765         return ret;
 766 }
 767
 768 /**
 769  *  @brief Get the radio channel
 770  *
 771  *  @param priv         A pointer to struct lbs_private structure
 772  *
 773  *  @return             The channel on success, error on failure
 774  */
 775 int lbs_get_channel(struct lbs_private *priv)
 776 {
 777         struct cmd_ds_802_11_rf_channel cmd;
 778         int ret = 0;
 779
 780         lbs_deb_enter(LBS_DEB_CMD);
 781
 782         memset(&cmd, 0, sizeof(cmd));
 783         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 784         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 785
 786         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 787         if (ret)
 788                 goto out;
 789
 790         ret = le16_to_cpu(cmd.channel);
 791         lbs_deb_cmd("current radio channel is %d\n", ret);
 792
 793 out:
 794         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 795         return ret;
 796 }
 797
 798 int lbs_update_channel(struct lbs_private *priv)
 799 {
 800         int ret;
 801
 802         /* the channel in f/w could be out of sync; get the current channel */
 803         lbs_deb_enter(LBS_DEB_ASSOC);
 804
 805         ret = lbs_get_channel(priv);
 806         if (ret > 0) {
 807                 priv->curbssparams.channel = ret;
 808                 ret = 0;
 809         }
 810         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 811         return ret;
 812 }
 813
 814 /**
 815  *  @brief Set the radio channel
 816  *
 817  *  @param priv         A pointer to struct lbs_private structure
 818  *  @param channel      The desired channel, or 0 to clear a locked channel
 819  *
 820  *  @return             0 on success, error on failure
 821  */
 822 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 823 {
 824         struct cmd_ds_802_11_rf_channel cmd;
 825 #ifdef DEBUG
 826         u8 old_channel = priv->curbssparams.channel;
 827 #endif
 828         int ret = 0;
 829
 830         lbs_deb_enter(LBS_DEB_CMD);
 831
 832         memset(&cmd, 0, sizeof(cmd));
 833         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 834         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 835         cmd.channel = cpu_to_le16(channel);
 836
 837         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 838         if (ret)
 839                 goto out;
 840
 841         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 842         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 843                 priv->curbssparams.channel);
 844
 845 out:
 846         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 847         return ret;
 848 }
 849
 850 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 851                                 struct cmd_ds_command *cmd)
 852 {
 853
 854         lbs_deb_enter(LBS_DEB_CMD);
 855         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 856         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 857         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 858
 859         /* reset Beacon SNR/NF/RSSI values */
 860         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 861         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 862         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 863         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 864         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 865         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 866
 867         lbs_deb_leave(LBS_DEB_CMD);
 868         return 0;
 869 }
 870
 871 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 872                                u8 cmd_action, void *pdata_buf)
 873 {
 874         struct lbs_offset_value *offval;
 875
 876         lbs_deb_enter(LBS_DEB_CMD);
 877
 878         offval = (struct lbs_offset_value *)pdata_buf;
 879
 880         switch (le16_to_cpu(cmdptr->command)) {
 881         case CMD_MAC_REG_ACCESS:
 882                 {
 883                         struct cmd_ds_mac_reg_access *macreg;
 884
 885                         cmdptr->size =
 886                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 887                                         + S_DS_GEN);
 888                         macreg =
 889                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 890                             macreg;
 891
 892                         macreg->action = cpu_to_le16(cmd_action);
 893                         macreg->offset = cpu_to_le16((u16) offval->offset);
 894                         macreg->value = cpu_to_le32(offval->value);
 895
 896                         break;
 897                 }
 898
 899         case CMD_BBP_REG_ACCESS:
 900                 {
 901                         struct cmd_ds_bbp_reg_access *bbpreg;
 902
 903                         cmdptr->size =
 904                             cpu_to_le16(sizeof
 905                                              (struct cmd_ds_bbp_reg_access)
 906                                              + S_DS_GEN);
 907                         bbpreg =
 908                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 909                             bbpreg;
 910
 911                         bbpreg->action = cpu_to_le16(cmd_action);
 912                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 913                         bbpreg->value = (u8) offval->value;
 914
 915                         break;
 916                 }
 917
 918         case CMD_RF_REG_ACCESS:
 919                 {
 920                         struct cmd_ds_rf_reg_access *rfreg;
 921
 922                         cmdptr->size =
 923                             cpu_to_le16(sizeof
 924                                              (struct cmd_ds_rf_reg_access) +
 925                                              S_DS_GEN);
 926                         rfreg =
 927                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 928                             rfreg;
 929
 930                         rfreg->action = cpu_to_le16(cmd_action);
 931                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 932                         rfreg->value = (u8) offval->value;
 933
 934                         break;
 935                 }
 936
 937         default:
 938                 break;
 939         }
 940
 941         lbs_deb_leave(LBS_DEB_CMD);
 942         return 0;
 943 }
 944
 945 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 946                                u16 cmd_action, void *pdata_buf)
 947 {
 948         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 949         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 950
 951         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 952         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 953         cmd->result = 0;
 954         bt_access->action = cpu_to_le16(cmd_action);
 955
 956         switch (cmd_action) {
 957         case CMD_ACT_BT_ACCESS_ADD:
 958                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 959                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 960                 break;
 961         case CMD_ACT_BT_ACCESS_DEL:
 962                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 963                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 964                 break;
 965         case CMD_ACT_BT_ACCESS_LIST:
 966                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 967                 break;
 968         case CMD_ACT_BT_ACCESS_RESET:
 969                 break;
 970         case CMD_ACT_BT_ACCESS_SET_INVERT:
 971                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 972                 break;
 973         case CMD_ACT_BT_ACCESS_GET_INVERT:
 974                 break;
 975         default:
 976                 break;
 977         }
 978         lbs_deb_leave(LBS_DEB_CMD);
 979         return 0;
 980 }
 981
 982 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
 983                                u16 cmd_action, void *pdata_buf)
 984 {
 985         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
 986         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 987
 988         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
 989         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
 990         cmd->result = 0;
 991
 992         if (pdata_buf)
 993                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
 994         else
 995                 memset(fwt_access, 0, sizeof(*fwt_access));
 996
 997         fwt_access->action = cpu_to_le16(cmd_action);
 998
 999         lbs_deb_leave(LBS_DEB_CMD);
1000         return 0;
1001 }
1002
1003 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1004                     struct cmd_ds_mesh_access *cmd)
1005 {
1006         int ret;
1007
1008         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1009
1010         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1011         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1012         cmd->hdr.result = 0;
1013
1014         cmd->action = cpu_to_le16(cmd_action);
1015
1016         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1017
1018         lbs_deb_leave(LBS_DEB_CMD);
1019         return ret;
1020 }
1021
1022 static int __lbs_mesh_config_send(struct lbs_private *priv,
1023                                   struct cmd_ds_mesh_config *cmd,
1024                                   uint16_t action, uint16_t type)
1025 {
1026         int ret;
1027
1028         lbs_deb_enter(LBS_DEB_CMD);
1029
1030         cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
1031         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1032         cmd->hdr.result = 0;
1033
1034         cmd->type = cpu_to_le16(type);
1035         cmd->action = cpu_to_le16(action);
1036
1037         ret = lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
1038
1039         lbs_deb_leave(LBS_DEB_CMD);
1040         return ret;
1041 }
1042
1043 int lbs_mesh_config_send(struct lbs_private *priv,
1044                          struct cmd_ds_mesh_config *cmd,
1045                          uint16_t action, uint16_t type)
1046 {
1047         int ret;
1048
1049         if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1050                 return -EOPNOTSUPP;
1051
1052         ret = __lbs_mesh_config_send(priv, cmd, action, type);
1053         return ret;
1054 }
1055
1056 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
1057  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
1058  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1059  * lbs_mesh_config_send.
1060  */
1061 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1062 {
1063         struct cmd_ds_mesh_config cmd;
1064         struct mrvl_meshie *ie;
1065
1066         memset(&cmd, 0, sizeof(cmd));
1067         cmd.channel = cpu_to_le16(chan);
1068         ie = (struct mrvl_meshie *)cmd.data;
1069
1070         switch (action) {
1071         case CMD_ACT_MESH_CONFIG_START:
1072                 ie->hdr.id = MFIE_TYPE_GENERIC;
1073                 ie->val.oui[0] = 0x00;
1074                 ie->val.oui[1] = 0x50;
1075                 ie->val.oui[2] = 0x43;
1076                 ie->val.type = MARVELL_MESH_IE_TYPE;
1077                 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1078                 ie->val.version = MARVELL_MESH_IE_VERSION;
1079                 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1080                 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1081                 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1082                 ie->val.mesh_id_len = priv->mesh_ssid_len;
1083                 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1084                 ie->hdr.len = sizeof(struct mrvl_meshie_val) -
1085                         IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1086                 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1087                 break;
1088         case CMD_ACT_MESH_CONFIG_STOP:
1089                 break;
1090         default:
1091                 return -1;
1092         }
1093         lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1094                     action, priv->mesh_tlv, chan,
1095                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1096
1097         return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1098 }
1099
1100 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1101                                 struct cmd_ds_command *cmd,
1102                                 u16 cmd_action)
1103 {
1104         struct cmd_ds_802_11_beacon_control
1105                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1106
1107         lbs_deb_enter(LBS_DEB_CMD);
1108         cmd->size =
1109             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1110                              + S_DS_GEN);
1111         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1112
1113         bcn_ctrl->action = cpu_to_le16(cmd_action);
1114         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1115         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1116
1117         lbs_deb_leave(LBS_DEB_CMD);
1118         return 0;
1119 }
1120
1121 static void lbs_queue_cmd(struct lbs_private *priv,
1122                           struct cmd_ctrl_node *cmdnode)
1123 {
1124         unsigned long flags;
1125         int addtail = 1;
1126
1127         lbs_deb_enter(LBS_DEB_HOST);
1128
1129         if (!cmdnode) {
1130                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1131                 goto done;
1132         }
1133         if (!cmdnode->cmdbuf->size) {
1134                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1135                 goto done;
1136         }
1137         cmdnode->result = 0;
1138
1139         /* Exit_PS command needs to be queued in the header always. */
1140         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1141                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1142
1143                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1144                         if (priv->psstate != PS_STATE_FULL_POWER)
1145                                 addtail = 0;
1146                 }
1147         }
1148
1149         spin_lock_irqsave(&priv->driver_lock, flags);
1150
1151         if (addtail)
1152                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1153         else
1154                 list_add(&cmdnode->list, &priv->cmdpendingq);
1155
1156         spin_unlock_irqrestore(&priv->driver_lock, flags);
1157
1158         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1159                      le16_to_cpu(cmdnode->cmdbuf->command));
1160
1161 done:
1162         lbs_deb_leave(LBS_DEB_HOST);
1163 }
1164
1165 static void lbs_submit_command(struct lbs_private *priv,
1166                                struct cmd_ctrl_node *cmdnode)
1167 {
1168         unsigned long flags;
1169         struct cmd_header *cmd;
1170         uint16_t cmdsize;
1171         uint16_t command;
1172         int timeo = 3 * HZ;
1173         int ret;
1174
1175         lbs_deb_enter(LBS_DEB_HOST);
1176
1177         cmd = cmdnode->cmdbuf;
1178
1179         spin_lock_irqsave(&priv->driver_lock, flags);
1180         priv->cur_cmd = cmdnode;
1181         priv->cur_cmd_retcode = 0;
1182         spin_unlock_irqrestore(&priv->driver_lock, flags);
1183
1184         cmdsize = le16_to_cpu(cmd->size);
1185         command = le16_to_cpu(cmd->command);
1186
1187         /* These commands take longer */
1188         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1189             command == CMD_802_11_AUTHENTICATE)
1190                 timeo = 5 * HZ;
1191
1192         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1193                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1194         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1195
1196         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1197
1198         if (ret) {
1199                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1200                 /* Let the timer kick in and retry, and potentially reset
1201                    the whole thing if the condition persists */
1202                 timeo = HZ/4;
1203         }
1204
1205         /* Setup the timer after transmit command */
1206         mod_timer(&priv->command_timer, jiffies + timeo);
1207
1208         lbs_deb_leave(LBS_DEB_HOST);
1209 }
1210
1211 /**
1212  *  This function inserts command node to cmdfreeq
1213  *  after cleans it. Requires priv->driver_lock held.
1214  */
1215 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1216                                          struct cmd_ctrl_node *cmdnode)
1217 {
1218         lbs_deb_enter(LBS_DEB_HOST);
1219
1220         if (!cmdnode)
1221                 goto out;
1222
1223         cmdnode->callback = NULL;
1224         cmdnode->callback_arg = 0;
1225
1226         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1227
1228         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1229  out:
1230         lbs_deb_leave(LBS_DEB_HOST);
1231 }
1232
1233 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1234         struct cmd_ctrl_node *ptempcmd)
1235 {
1236         unsigned long flags;
1237
1238         spin_lock_irqsave(&priv->driver_lock, flags);
1239         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1240         spin_unlock_irqrestore(&priv->driver_lock, flags);
1241 }
1242
1243 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1244                           int result)
1245 {
1246         if (cmd == priv->cur_cmd)
1247                 priv->cur_cmd_retcode = result;
1248
1249         cmd->result = result;
1250         cmd->cmdwaitqwoken = 1;
1251         wake_up_interruptible(&cmd->cmdwait_q);
1252
1253         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1254                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1255         priv->cur_cmd = NULL;
1256 }
1257
1258 int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
1259 {
1260         struct cmd_ds_802_11_radio_control cmd;
1261         int ret = -EINVAL;
1262
1263         lbs_deb_enter(LBS_DEB_CMD);
1264
1265         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1266         cmd.action = cpu_to_le16(CMD_ACT_SET);
1267
1268         /* Only v8 and below support setting the preamble */
1269         if (priv->fwrelease < 0x09000000) {
1270                 switch (preamble) {
1271                 case RADIO_PREAMBLE_SHORT:
1272                         if (!(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
1273                                 goto out;
1274                         /* Fall through */
1275                 case RADIO_PREAMBLE_AUTO:
1276                 case RADIO_PREAMBLE_LONG:
1277                         cmd.control = cpu_to_le16(preamble);
1278                         break;
1279                 default:
1280                         goto out;
1281                 }
1282         }
1283
1284         if (radio_on)
1285                 cmd.control |= cpu_to_le16(0x1);
1286         else {
1287                 cmd.control &= cpu_to_le16(~0x1);
1288                 priv->txpower_cur = 0;
1289         }
1290
1291         lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1292                     radio_on ? "ON" : "OFF", preamble);
1293
1294         priv->radio_on = radio_on;
1295
1296         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1297
1298 out:
1299         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1300         return ret;
1301 }
1302
1303 void lbs_set_mac_control(struct lbs_private *priv)
1304 {
1305         struct cmd_ds_mac_control cmd;
1306
1307         lbs_deb_enter(LBS_DEB_CMD);
1308
1309         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1310         cmd.action = cpu_to_le16(priv->mac_control);
1311         cmd.reserved = 0;
1312
1313         lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1314
1315         lbs_deb_leave(LBS_DEB_CMD);
1316 }
1317
1318 /**
1319  *  @brief This function prepare the command before send to firmware.
1320  *
1321  *  @param priv         A pointer to struct lbs_private structure
1322  *  @param cmd_no       command number
1323  *  @param cmd_action   command action: GET or SET
1324  *  @param wait_option  wait option: wait response or not
1325  *  @param cmd_oid      cmd oid: treated as sub command
1326  *  @param pdata_buf    A pointer to informaion buffer
1327  *  @return             0 or -1
1328  */
1329 int lbs_prepare_and_send_command(struct lbs_private *priv,
1330                           u16 cmd_no,
1331                           u16 cmd_action,
1332                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1333 {
1334         int ret = 0;
1335         struct cmd_ctrl_node *cmdnode;
1336         struct cmd_ds_command *cmdptr;
1337         unsigned long flags;
1338
1339         lbs_deb_enter(LBS_DEB_HOST);
1340
1341         if (!priv) {
1342                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1343                 ret = -1;
1344                 goto done;
1345         }
1346
1347         if (priv->surpriseremoved) {
1348                 lbs_deb_host("PREP_CMD: card removed\n");
1349                 ret = -1;
1350                 goto done;
1351         }
1352
1353         cmdnode = lbs_get_cmd_ctrl_node(priv);
1354
1355         if (cmdnode == NULL) {
1356                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1357
1358                 /* Wake up main thread to execute next command */
1359                 wake_up_interruptible(&priv->waitq);
1360                 ret = -1;
1361                 goto done;
1362         }
1363
1364         cmdnode->callback = NULL;
1365         cmdnode->callback_arg = (unsigned long)pdata_buf;
1366
1367         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1368
1369         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1370
1371         /* Set sequence number, command and INT option */
1372         priv->seqnum++;
1373         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1374
1375         cmdptr->command = cpu_to_le16(cmd_no);
1376         cmdptr->result = 0;
1377
1378         switch (cmd_no) {
1379         case CMD_802_11_PS_MODE:
1380                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1381                 break;
1382
1383         case CMD_802_11_ASSOCIATE:
1384         case CMD_802_11_REASSOCIATE:
1385                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1386                 break;
1387
1388         case CMD_802_11_AUTHENTICATE:
1389                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1390                 break;
1391
1392         case CMD_MAC_REG_ACCESS:
1393         case CMD_BBP_REG_ACCESS:
1394         case CMD_RF_REG_ACCESS:
1395                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1396                 break;
1397
1398         case CMD_802_11_MONITOR_MODE:
1399                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1400                                           cmd_action, pdata_buf);
1401                 break;
1402
1403         case CMD_802_11_RSSI:
1404                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1405                 break;
1406
1407         case CMD_802_11_SET_AFC:
1408         case CMD_802_11_GET_AFC:
1409
1410                 cmdptr->command = cpu_to_le16(cmd_no);
1411                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1412                                            S_DS_GEN);
1413
1414                 memmove(&cmdptr->params.afc,
1415                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1416
1417                 ret = 0;
1418                 goto done;
1419
1420         case CMD_802_11D_DOMAIN_INFO:
1421                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1422                                                    cmd_no, cmd_action);
1423                 break;
1424
1425         case CMD_802_11_TPC_CFG:
1426                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1427                 cmdptr->size =
1428                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1429                                      S_DS_GEN);
1430
1431                 memmove(&cmdptr->params.tpccfg,
1432                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1433
1434                 ret = 0;
1435                 break;
1436         case CMD_802_11_LED_GPIO_CTRL:
1437                 {
1438                         struct mrvlietypes_ledgpio *gpio =
1439                             (struct mrvlietypes_ledgpio*)
1440                             cmdptr->params.ledgpio.data;
1441
1442                         memmove(&cmdptr->params.ledgpio,
1443                                 pdata_buf,
1444                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1445
1446                         cmdptr->command =
1447                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1448
1449 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1450                         cmdptr->size =
1451                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1452                                 + S_DS_GEN
1453                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1454                         gpio->header.len = gpio->header.len;
1455
1456                         ret = 0;
1457                         break;
1458                 }
1459
1460         case CMD_BT_ACCESS:
1461                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1462                 break;
1463
1464         case CMD_FWT_ACCESS:
1465                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1466                 break;
1467
1468         case CMD_GET_TSF:
1469                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1470                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1471                                            S_DS_GEN);
1472                 ret = 0;
1473                 break;
1474         case CMD_802_11_BEACON_CTRL:
1475                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1476                 break;
1477         default:
1478                 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1479                 ret = -1;
1480                 break;
1481         }
1482
1483         /* return error, since the command preparation failed */
1484         if (ret != 0) {
1485                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1486                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1487                 ret = -1;
1488                 goto done;
1489         }
1490
1491         cmdnode->cmdwaitqwoken = 0;
1492
1493         lbs_queue_cmd(priv, cmdnode);
1494         wake_up_interruptible(&priv->waitq);
1495
1496         if (wait_option & CMD_OPTION_WAITFORRSP) {
1497                 lbs_deb_host("PREP_CMD: wait for response\n");
1498                 might_sleep();
1499                 wait_event_interruptible(cmdnode->cmdwait_q,
1500                                          cmdnode->cmdwaitqwoken);
1501         }
1502
1503         spin_lock_irqsave(&priv->driver_lock, flags);
1504         if (priv->cur_cmd_retcode) {
1505                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1506                        priv->cur_cmd_retcode);
1507                 priv->cur_cmd_retcode = 0;
1508                 ret = -1;
1509         }
1510         spin_unlock_irqrestore(&priv->driver_lock, flags);
1511
1512 done:
1513         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1514         return ret;
1515 }
1516
1517 /**
1518  *  @brief This function allocates the command buffer and link
1519  *  it to command free queue.
1520  *
1521  *  @param priv         A pointer to struct lbs_private structure
1522  *  @return             0 or -1
1523  */
1524 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1525 {
1526         int ret = 0;
1527         u32 bufsize;
1528         u32 i;
1529         struct cmd_ctrl_node *cmdarray;
1530
1531         lbs_deb_enter(LBS_DEB_HOST);
1532
1533         /* Allocate and initialize the command array */
1534         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1535         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1536                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1537                 ret = -1;
1538                 goto done;
1539         }
1540         priv->cmd_array = cmdarray;
1541
1542         /* Allocate and initialize each command buffer in the command array */
1543         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1544                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1545                 if (!cmdarray[i].cmdbuf) {
1546                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1547                         ret = -1;
1548                         goto done;
1549                 }
1550         }
1551
1552         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1553                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1554                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1555         }
1556         ret = 0;
1557
1558 done:
1559         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1560         return ret;
1561 }
1562
1563 /**
1564  *  @brief This function frees the command buffer.
1565  *
1566  *  @param priv         A pointer to struct lbs_private structure
1567  *  @return             0 or -1
1568  */
1569 int lbs_free_cmd_buffer(struct lbs_private *priv)
1570 {
1571         struct cmd_ctrl_node *cmdarray;
1572         unsigned int i;
1573
1574         lbs_deb_enter(LBS_DEB_HOST);
1575
1576         /* need to check if cmd array is allocated or not */
1577         if (priv->cmd_array == NULL) {
1578                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1579                 goto done;
1580         }
1581
1582         cmdarray = priv->cmd_array;
1583
1584         /* Release shared memory buffers */
1585         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1586                 if (cmdarray[i].cmdbuf) {
1587                         kfree(cmdarray[i].cmdbuf);
1588                         cmdarray[i].cmdbuf = NULL;
1589                 }
1590         }
1591
1592         /* Release cmd_ctrl_node */
1593         if (priv->cmd_array) {
1594                 kfree(priv->cmd_array);
1595                 priv->cmd_array = NULL;
1596         }
1597
1598 done:
1599         lbs_deb_leave(LBS_DEB_HOST);
1600         return 0;
1601 }
1602
1603 /**
1604  *  @brief This function gets a free command node if available in
1605  *  command free queue.
1606  *
1607  *  @param priv         A pointer to struct lbs_private structure
1608  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1609  */
1610 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1611 {
1612         struct cmd_ctrl_node *tempnode;
1613         unsigned long flags;
1614
1615         lbs_deb_enter(LBS_DEB_HOST);
1616
1617         if (!priv)
1618                 return NULL;
1619
1620         spin_lock_irqsave(&priv->driver_lock, flags);
1621
1622         if (!list_empty(&priv->cmdfreeq)) {
1623                 tempnode = list_first_entry(&priv->cmdfreeq,
1624                                             struct cmd_ctrl_node, list);
1625                 list_del(&tempnode->list);
1626         } else {
1627                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1628                 tempnode = NULL;
1629         }
1630
1631         spin_unlock_irqrestore(&priv->driver_lock, flags);
1632
1633         lbs_deb_leave(LBS_DEB_HOST);
1634         return tempnode;
1635 }
1636
1637 /**
1638  *  @brief This function executes next command in command
1639  *  pending queue. It will put fimware back to PS mode
1640  *  if applicable.
1641  *
1642  *  @param priv     A pointer to struct lbs_private structure
1643  *  @return        0 or -1
1644  */
1645 int lbs_execute_next_command(struct lbs_private *priv)
1646 {
1647         struct cmd_ctrl_node *cmdnode = NULL;
1648         struct cmd_header *cmd;
1649         unsigned long flags;
1650         int ret = 0;
1651
1652         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1653          * only caller to us is lbs_thread() and we get even when a
1654          * data packet is received */
1655         lbs_deb_enter(LBS_DEB_THREAD);
1656
1657         spin_lock_irqsave(&priv->driver_lock, flags);
1658
1659         if (priv->cur_cmd) {
1660                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1661                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1662                 ret = -1;
1663                 goto done;
1664         }
1665
1666         if (!list_empty(&priv->cmdpendingq)) {
1667                 cmdnode = list_first_entry(&priv->cmdpendingq,
1668                                            struct cmd_ctrl_node, list);
1669         }
1670
1671         spin_unlock_irqrestore(&priv->driver_lock, flags);
1672
1673         if (cmdnode) {
1674                 cmd = cmdnode->cmdbuf;
1675
1676                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1677                         if ((priv->psstate == PS_STATE_SLEEP) ||
1678                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1679                                 lbs_deb_host(
1680                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1681                                        le16_to_cpu(cmd->command),
1682                                        priv->psstate);
1683                                 ret = -1;
1684                                 goto done;
1685                         }
1686                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1687                                      "0x%04x in psstate %d\n",
1688                                      le16_to_cpu(cmd->command), priv->psstate);
1689                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1690                         /*
1691                          * 1. Non-PS command:
1692                          * Queue it. set needtowakeup to TRUE if current state
1693                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1694                          * 2. PS command but not Exit_PS:
1695                          * Ignore it.
1696                          * 3. PS command Exit_PS:
1697                          * Set needtowakeup to TRUE if current state is SLEEP,
1698                          * otherwise send this command down to firmware
1699                          * immediately.
1700                          */
1701                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1702                                 /*  Prepare to send Exit PS,
1703                                  *  this non PS command will be sent later */
1704                                 if ((priv->psstate == PS_STATE_SLEEP)
1705                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1706                                     ) {
1707                                         /* w/ new scheme, it will not reach here.
1708                                            since it is blocked in main_thread. */
1709                                         priv->needtowakeup = 1;
1710                                 } else
1711                                         lbs_ps_wakeup(priv, 0);
1712
1713                                 ret = 0;
1714                                 goto done;
1715                         } else {
1716                                 /*
1717                                  * PS command. Ignore it if it is not Exit_PS.
1718                                  * otherwise send it down immediately.
1719                                  */
1720                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1721
1722                                 lbs_deb_host(
1723                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1724                                        psm->action);
1725                                 if (psm->action !=
1726                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1727                                         lbs_deb_host(
1728                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1729                                         list_del(&cmdnode->list);
1730                                         spin_lock_irqsave(&priv->driver_lock, flags);
1731                                         lbs_complete_command(priv, cmdnode, 0);
1732                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1733
1734                                         ret = 0;
1735                                         goto done;
1736                                 }
1737
1738                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1739                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1740                                         lbs_deb_host(
1741                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1742                                         list_del(&cmdnode->list);
1743                                         spin_lock_irqsave(&priv->driver_lock, flags);
1744                                         lbs_complete_command(priv, cmdnode, 0);
1745                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1746                                         priv->needtowakeup = 1;
1747
1748                                         ret = 0;
1749                                         goto done;
1750                                 }
1751
1752                                 lbs_deb_host(
1753                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1754                         }
1755                 }
1756                 list_del(&cmdnode->list);
1757                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1758                             le16_to_cpu(cmd->command));
1759                 lbs_submit_command(priv, cmdnode);
1760         } else {
1761                 /*
1762                  * check if in power save mode, if yes, put the device back
1763                  * to PS mode
1764                  */
1765                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1766                     (priv->psstate == PS_STATE_FULL_POWER) &&
1767                     ((priv->connect_status == LBS_CONNECTED) ||
1768                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1769                         if (priv->secinfo.WPAenabled ||
1770                             priv->secinfo.WPA2enabled) {
1771                                 /* check for valid WPA group keys */
1772                                 if (priv->wpa_mcast_key.len ||
1773                                     priv->wpa_unicast_key.len) {
1774                                         lbs_deb_host(
1775                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1776                                                " go back to PS_SLEEP");
1777                                         lbs_ps_sleep(priv, 0);
1778                                 }
1779                         } else {
1780                                 lbs_deb_host(
1781                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1782                                        "go back to PS_SLEEP");
1783                                 lbs_ps_sleep(priv, 0);
1784                         }
1785                 }
1786         }
1787
1788         ret = 0;
1789 done:
1790         lbs_deb_leave(LBS_DEB_THREAD);
1791         return ret;
1792 }
1793
1794 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1795 {
1796         union iwreq_data iwrq;
1797         u8 buf[50];
1798
1799         lbs_deb_enter(LBS_DEB_WEXT);
1800
1801         memset(&iwrq, 0, sizeof(union iwreq_data));
1802         memset(buf, 0, sizeof(buf));
1803
1804         snprintf(buf, sizeof(buf) - 1, "%s", str);
1805
1806         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1807
1808         /* Send Event to upper layer */
1809         lbs_deb_wext("event indication string %s\n", (char *)buf);
1810         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1811         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1812
1813         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1814
1815         lbs_deb_leave(LBS_DEB_WEXT);
1816 }
1817
1818 static void lbs_send_confirmsleep(struct lbs_private *priv)
1819 {
1820         unsigned long flags;
1821         int ret;
1822
1823         lbs_deb_enter(LBS_DEB_HOST);
1824         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1825                 sizeof(confirm_sleep));
1826
1827         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1828                 sizeof(confirm_sleep));
1829         if (ret) {
1830                 lbs_pr_alert("confirm_sleep failed\n");
1831                 goto out;
1832         }
1833
1834         spin_lock_irqsave(&priv->driver_lock, flags);
1835
1836         /* We don't get a response on the sleep-confirmation */
1837         priv->dnld_sent = DNLD_RES_RECEIVED;
1838
1839         /* If nothing to do, go back to sleep (?) */
1840         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1841                 priv->psstate = PS_STATE_SLEEP;
1842
1843         spin_unlock_irqrestore(&priv->driver_lock, flags);
1844
1845 out:
1846         lbs_deb_leave(LBS_DEB_HOST);
1847 }
1848
1849 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1850 {
1851         lbs_deb_enter(LBS_DEB_HOST);
1852
1853         /*
1854          * PS is currently supported only in Infrastructure mode
1855          * Remove this check if it is to be supported in IBSS mode also
1856          */
1857
1858         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1859                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1860
1861         lbs_deb_leave(LBS_DEB_HOST);
1862 }
1863
1864 /**
1865  *  @brief This function sends Exit_PS command to firmware.
1866  *
1867  *  @param priv         A pointer to struct lbs_private structure
1868  *  @param wait_option  wait response or not
1869  *  @return             n/a
1870  */
1871 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1872 {
1873         __le32 Localpsmode;
1874
1875         lbs_deb_enter(LBS_DEB_HOST);
1876
1877         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1878
1879         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1880                               CMD_SUBCMD_EXIT_PS,
1881                               wait_option, 0, &Localpsmode);
1882
1883         lbs_deb_leave(LBS_DEB_HOST);
1884 }
1885
1886 /**
1887  *  @brief This function checks condition and prepares to
1888  *  send sleep confirm command to firmware if ok.
1889  *
1890  *  @param priv         A pointer to struct lbs_private structure
1891  *  @param psmode       Power Saving mode
1892  *  @return             n/a
1893  */
1894 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1895 {
1896         unsigned long flags =0;
1897         int allowed = 1;
1898
1899         lbs_deb_enter(LBS_DEB_HOST);
1900
1901         spin_lock_irqsave(&priv->driver_lock, flags);
1902         if (priv->dnld_sent) {
1903                 allowed = 0;
1904                 lbs_deb_host("dnld_sent was set\n");
1905         }
1906
1907         /* In-progress command? */
1908         if (priv->cur_cmd) {
1909                 allowed = 0;
1910                 lbs_deb_host("cur_cmd was set\n");
1911         }
1912
1913         /* Pending events or command responses? */
1914         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1915                 allowed = 0;
1916                 lbs_deb_host("pending events or command responses\n");
1917         }
1918         spin_unlock_irqrestore(&priv->driver_lock, flags);
1919
1920         if (allowed) {
1921                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1922                 lbs_send_confirmsleep(priv);
1923         } else {
1924                 lbs_deb_host("sleep confirm has been delayed\n");
1925         }
1926
1927         lbs_deb_leave(LBS_DEB_HOST);
1928 }
1929
1930
1931 /**
1932  * @brief Configures the transmission power control functionality.
1933  *
1934  * @param priv          A pointer to struct lbs_private structure
1935  * @param enable        Transmission power control enable
1936  * @param p0            Power level when link quality is good (dBm).
1937  * @param p1            Power level when link quality is fair (dBm).
1938  * @param p2            Power level when link quality is poor (dBm).
1939  * @param usesnr        Use Signal to Noise Ratio in TPC
1940  *
1941  * @return 0 on success
1942  */
1943 int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
1944                 int8_t p2, int usesnr)
1945 {
1946         struct cmd_ds_802_11_tpc_cfg cmd;
1947         int ret;
1948
1949         memset(&cmd, 0, sizeof(cmd));
1950         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1951         cmd.action = cpu_to_le16(CMD_ACT_SET);
1952         cmd.enable = !!enable;
1953         cmd.usesnr = !!usesnr;
1954         cmd.P0 = p0;
1955         cmd.P1 = p1;
1956         cmd.P2 = p2;
1957
1958         ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
1959
1960         return ret;
1961 }
1962
1963 /**
1964  * @brief Configures the power adaptation settings.
1965  *
1966  * @param priv          A pointer to struct lbs_private structure
1967  * @param enable        Power adaptation enable
1968  * @param p0            Power level for 1, 2, 5.5 and 11 Mbps (dBm).
1969  * @param p1            Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
1970  * @param p2            Power level for 48 and 54 Mbps (dBm).
1971  *
1972  * @return 0 on Success
1973  */
1974
1975 int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
1976                 int8_t p1, int8_t p2)
1977 {
1978         struct cmd_ds_802_11_pa_cfg cmd;
1979         int ret;
1980
1981         memset(&cmd, 0, sizeof(cmd));
1982         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1983         cmd.action = cpu_to_le16(CMD_ACT_SET);
1984         cmd.enable = !!enable;
1985         cmd.P0 = p0;
1986         cmd.P1 = p1;
1987         cmd.P2 = p2;
1988
1989         ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
1990
1991         return ret;
1992 }
1993
1994
1995 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1996         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1997         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1998         unsigned long callback_arg)
1999 {
2000         struct cmd_ctrl_node *cmdnode;
2001
2002         lbs_deb_enter(LBS_DEB_HOST);
2003
2004         if (priv->surpriseremoved) {
2005                 lbs_deb_host("PREP_CMD: card removed\n");
2006                 cmdnode = ERR_PTR(-ENOENT);
2007                 goto done;
2008         }
2009
2010         cmdnode = lbs_get_cmd_ctrl_node(priv);
2011         if (cmdnode == NULL) {
2012                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2013
2014                 /* Wake up main thread to execute next command */
2015                 wake_up_interruptible(&priv->waitq);
2016                 cmdnode = ERR_PTR(-ENOBUFS);
2017                 goto done;
2018         }
2019
2020         cmdnode->callback = callback;
2021         cmdnode->callback_arg = callback_arg;
2022
2023         /* Copy the incoming command to the buffer */
2024         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2025
2026         /* Set sequence number, clean result, move to buffer */
2027         priv->seqnum++;
2028         cmdnode->cmdbuf->command = cpu_to_le16(command);
2029         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2030         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2031         cmdnode->cmdbuf->result  = 0;
2032
2033         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2034
2035         cmdnode->cmdwaitqwoken = 0;
2036         lbs_queue_cmd(priv, cmdnode);
2037         wake_up_interruptible(&priv->waitq);
2038
2039  done:
2040         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2041         return cmdnode;
2042 }
2043
2044 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2045         struct cmd_header *in_cmd, int in_cmd_size)
2046 {
2047         lbs_deb_enter(LBS_DEB_CMD);
2048         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2049                 lbs_cmd_async_callback, 0);
2050         lbs_deb_leave(LBS_DEB_CMD);
2051 }
2052
2053 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2054               struct cmd_header *in_cmd, int in_cmd_size,
2055               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2056               unsigned long callback_arg)
2057 {
2058         struct cmd_ctrl_node *cmdnode;
2059         unsigned long flags;
2060         int ret = 0;
2061
2062         lbs_deb_enter(LBS_DEB_HOST);
2063
2064         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2065                                   callback, callback_arg);
2066         if (IS_ERR(cmdnode)) {
2067                 ret = PTR_ERR(cmdnode);
2068                 goto done;
2069         }
2070
2071         might_sleep();
2072         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2073
2074         spin_lock_irqsave(&priv->driver_lock, flags);
2075         ret = cmdnode->result;
2076         if (ret)
2077                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2078                             command, ret);
2079
2080         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2081         spin_unlock_irqrestore(&priv->driver_lock, flags);
2082
2083 done:
2084         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2085         return ret;
2086 }
2087 EXPORT_SYMBOL_GPL(__lbs_cmd);
2088
2089