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 /**
 484  *  @brief Set an SNMP MIB value
 485  *
 486  *  @param priv         A pointer to struct lbs_private structure
 487  *  @param oid          The OID to set in the firmware
 488  *  @param val          Value to set the OID to
 489  *
 490  *  @return             0 on success, error on failure
 491  */
 492 int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
 493 {
 494         struct cmd_ds_802_11_snmp_mib cmd;
 495         int ret;
 496
 497         lbs_deb_enter(LBS_DEB_CMD);
 498
 499         memset(&cmd, 0, sizeof (cmd));
 500         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 501         cmd.action = cpu_to_le16(CMD_ACT_SET);
 502         cmd.oid = cpu_to_le16((u16) oid);
 503
 504         switch (oid) {
 505         case SNMP_MIB_OID_BSS_TYPE:
 506                 cmd.bufsize = cpu_to_le16(sizeof(u8));
 507                 cmd.value[0] = (val == IW_MODE_ADHOC) ? 2 : 1;
 508                 break;
 509         case SNMP_MIB_OID_11D_ENABLE:
 510         case SNMP_MIB_OID_FRAG_THRESHOLD:
 511         case SNMP_MIB_OID_RTS_THRESHOLD:
 512         case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
 513         case SNMP_MIB_OID_LONG_RETRY_LIMIT:
 514                 cmd.bufsize = cpu_to_le16(sizeof(u16));
 515                 *((__le16 *)(&cmd.value)) = cpu_to_le16(val);
 516                 break;
 517         default:
 518                 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
 519                 ret = -EINVAL;
 520                 goto out;
 521         }
 522
 523         lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
 524                     le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
 525
 526         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 527
 528 out:
 529         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 530         return ret;
 531 }
 532
 533 /**
 534  *  @brief Get an SNMP MIB value
 535  *
 536  *  @param priv         A pointer to struct lbs_private structure
 537  *  @param oid          The OID to retrieve from the firmware
 538  *  @param out_val      Location for the returned value
 539  *
 540  *  @return             0 on success, error on failure
 541  */
 542 int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
 543 {
 544         struct cmd_ds_802_11_snmp_mib cmd;
 545         int ret;
 546
 547         lbs_deb_enter(LBS_DEB_CMD);
 548
 549         memset(&cmd, 0, sizeof (cmd));
 550         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 551         cmd.action = cpu_to_le16(CMD_ACT_GET);
 552         cmd.oid = cpu_to_le16(oid);
 553
 554         ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
 555         if (ret)
 556                 goto out;
 557
 558         switch (le16_to_cpu(cmd.bufsize)) {
 559         case sizeof(u8):
 560                 if (oid == SNMP_MIB_OID_BSS_TYPE) {
 561                         if (cmd.value[0] == 2)
 562                                 *out_val = IW_MODE_ADHOC;
 563                         else
 564                                 *out_val = IW_MODE_INFRA;
 565                 } else
 566                         *out_val = cmd.value[0];
 567                 break;
 568         case sizeof(u16):
 569                 *out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
 570                 break;
 571         default:
 572                 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
 573                             oid, le16_to_cpu(cmd.bufsize));
 574                 break;
 575         }
 576
 577 out:
 578         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 579         return ret;
 580 }
 581
 582 /**
 583  *  @brief Get the min, max, and current TX power
 584  *
 585  *  @param priv         A pointer to struct lbs_private structure
 586  *  @param curlevel     Current power level in dBm
 587  *  @param minlevel     Minimum supported power level in dBm (optional)
 588  *  @param maxlevel     Maximum supported power level in dBm (optional)
 589  *
 590  *  @return             0 on success, error on failure
 591  */
 592 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
 593                      s16 *maxlevel)
 594 {
 595         struct cmd_ds_802_11_rf_tx_power cmd;
 596         int ret;
 597
 598         lbs_deb_enter(LBS_DEB_CMD);
 599
 600         memset(&cmd, 0, sizeof(cmd));
 601         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 602         cmd.action = cpu_to_le16(CMD_ACT_GET);
 603
 604         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 605         if (ret == 0) {
 606                 *curlevel = le16_to_cpu(cmd.curlevel);
 607                 if (minlevel)
 608                         *minlevel = le16_to_cpu(cmd.minlevel);
 609                 if (maxlevel)
 610                         *maxlevel = le16_to_cpu(cmd.maxlevel);
 611         }
 612
 613         lbs_deb_leave(LBS_DEB_CMD);
 614         return ret;
 615 }
 616
 617 /**
 618  *  @brief Set the TX power
 619  *
 620  *  @param priv         A pointer to struct lbs_private structure
 621  *  @param dbm          The desired power level in dBm
 622  *
 623  *  @return             0 on success, error on failure
 624  */
 625 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
 626 {
 627         struct cmd_ds_802_11_rf_tx_power cmd;
 628         int ret;
 629
 630         lbs_deb_enter(LBS_DEB_CMD);
 631
 632         memset(&cmd, 0, sizeof(cmd));
 633         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 634         cmd.action = cpu_to_le16(CMD_ACT_SET);
 635         cmd.curlevel = cpu_to_le16(dbm);
 636
 637         lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
 638
 639         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
 640
 641         lbs_deb_leave(LBS_DEB_CMD);
 642         return ret;
 643 }
 644
 645 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 646                                       u16 cmd_action, void *pdata_buf)
 647 {
 648         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 649
 650         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 651         cmd->size =
 652             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 653                              S_DS_GEN);
 654
 655         monitor->action = cpu_to_le16(cmd_action);
 656         if (cmd_action == CMD_ACT_SET) {
 657                 monitor->mode =
 658                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 659         }
 660
 661         return 0;
 662 }
 663
 664 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
 665 {
 666 /*              Bit     Rate
 667 *               15:13 Reserved
 668 *               12    54 Mbps
 669 *               11    48 Mbps
 670 *               10    36 Mbps
 671 *               9     24 Mbps
 672 *               8     18 Mbps
 673 *               7     12 Mbps
 674 *               6     9 Mbps
 675 *               5     6 Mbps
 676 *               4     Reserved
 677 *               3     11 Mbps
 678 *               2     5.5 Mbps
 679 *               1     2 Mbps
 680 *               0     1 Mbps
 681 **/
 682
 683         uint16_t ratemask;
 684         int i = lbs_data_rate_to_fw_index(rate);
 685         if (lower_rates_ok)
 686                 ratemask = (0x1fef >> (12 - i));
 687         else
 688                 ratemask = (1 << i);
 689         return cpu_to_le16(ratemask);
 690 }
 691
 692 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 693                                       uint16_t cmd_action)
 694 {
 695         struct cmd_ds_802_11_rate_adapt_rateset cmd;
 696         int ret;
 697
 698         lbs_deb_enter(LBS_DEB_CMD);
 699
 700         if (!priv->cur_rate && !priv->enablehwauto)
 701                 return -EINVAL;
 702
 703         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 704
 705         cmd.action = cpu_to_le16(cmd_action);
 706         cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
 707         cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
 708         ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
 709         if (!ret && cmd_action == CMD_ACT_GET) {
 710                 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
 711                 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
 712         }
 713
 714         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 715         return ret;
 716 }
 717 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
 718
 719 /**
 720  *  @brief Set the data rate
 721  *
 722  *  @param priv         A pointer to struct lbs_private structure
 723  *  @param rate         The desired data rate, or 0 to clear a locked rate
 724  *
 725  *  @return             0 on success, error on failure
 726  */
 727 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 728 {
 729         struct cmd_ds_802_11_data_rate cmd;
 730         int ret = 0;
 731
 732         lbs_deb_enter(LBS_DEB_CMD);
 733
 734         memset(&cmd, 0, sizeof(cmd));
 735         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 736
 737         if (rate > 0) {
 738                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 739                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 740                 if (cmd.rates[0] == 0) {
 741                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 742                                     " 0x%02X\n", rate);
 743                         ret = 0;
 744                         goto out;
 745                 }
 746                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 747         } else {
 748                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 749                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 750         }
 751
 752         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 753         if (ret)
 754                 goto out;
 755
 756         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 757
 758         /* FIXME: get actual rates FW can do if this command actually returns
 759          * all data rates supported.
 760          */
 761         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 762         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 763
 764 out:
 765         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 766         return ret;
 767 }
 768
 769 /**
 770  *  @brief Get the radio channel
 771  *
 772  *  @param priv         A pointer to struct lbs_private structure
 773  *
 774  *  @return             The channel on success, error on failure
 775  */
 776 int lbs_get_channel(struct lbs_private *priv)
 777 {
 778         struct cmd_ds_802_11_rf_channel cmd;
 779         int ret = 0;
 780
 781         lbs_deb_enter(LBS_DEB_CMD);
 782
 783         memset(&cmd, 0, sizeof(cmd));
 784         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 785         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 786
 787         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 788         if (ret)
 789                 goto out;
 790
 791         ret = le16_to_cpu(cmd.channel);
 792         lbs_deb_cmd("current radio channel is %d\n", ret);
 793
 794 out:
 795         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 796         return ret;
 797 }
 798
 799 int lbs_update_channel(struct lbs_private *priv)
 800 {
 801         int ret;
 802
 803         /* the channel in f/w could be out of sync; get the current channel */
 804         lbs_deb_enter(LBS_DEB_ASSOC);
 805
 806         ret = lbs_get_channel(priv);
 807         if (ret > 0) {
 808                 priv->curbssparams.channel = ret;
 809                 ret = 0;
 810         }
 811         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 812         return ret;
 813 }
 814
 815 /**
 816  *  @brief Set the radio channel
 817  *
 818  *  @param priv         A pointer to struct lbs_private structure
 819  *  @param channel      The desired channel, or 0 to clear a locked channel
 820  *
 821  *  @return             0 on success, error on failure
 822  */
 823 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 824 {
 825         struct cmd_ds_802_11_rf_channel cmd;
 826 #ifdef DEBUG
 827         u8 old_channel = priv->curbssparams.channel;
 828 #endif
 829         int ret = 0;
 830
 831         lbs_deb_enter(LBS_DEB_CMD);
 832
 833         memset(&cmd, 0, sizeof(cmd));
 834         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 835         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 836         cmd.channel = cpu_to_le16(channel);
 837
 838         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 839         if (ret)
 840                 goto out;
 841
 842         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 843         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 844                 priv->curbssparams.channel);
 845
 846 out:
 847         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 848         return ret;
 849 }
 850
 851 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 852                                 struct cmd_ds_command *cmd)
 853 {
 854
 855         lbs_deb_enter(LBS_DEB_CMD);
 856         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 857         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 858         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 859
 860         /* reset Beacon SNR/NF/RSSI values */
 861         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 862         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 863         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 864         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 865         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 866         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 867
 868         lbs_deb_leave(LBS_DEB_CMD);
 869         return 0;
 870 }
 871
 872 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 873                                u8 cmd_action, void *pdata_buf)
 874 {
 875         struct lbs_offset_value *offval;
 876
 877         lbs_deb_enter(LBS_DEB_CMD);
 878
 879         offval = (struct lbs_offset_value *)pdata_buf;
 880
 881         switch (le16_to_cpu(cmdptr->command)) {
 882         case CMD_MAC_REG_ACCESS:
 883                 {
 884                         struct cmd_ds_mac_reg_access *macreg;
 885
 886                         cmdptr->size =
 887                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 888                                         + S_DS_GEN);
 889                         macreg =
 890                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 891                             macreg;
 892
 893                         macreg->action = cpu_to_le16(cmd_action);
 894                         macreg->offset = cpu_to_le16((u16) offval->offset);
 895                         macreg->value = cpu_to_le32(offval->value);
 896
 897                         break;
 898                 }
 899
 900         case CMD_BBP_REG_ACCESS:
 901                 {
 902                         struct cmd_ds_bbp_reg_access *bbpreg;
 903
 904                         cmdptr->size =
 905                             cpu_to_le16(sizeof
 906                                              (struct cmd_ds_bbp_reg_access)
 907                                              + S_DS_GEN);
 908                         bbpreg =
 909                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 910                             bbpreg;
 911
 912                         bbpreg->action = cpu_to_le16(cmd_action);
 913                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 914                         bbpreg->value = (u8) offval->value;
 915
 916                         break;
 917                 }
 918
 919         case CMD_RF_REG_ACCESS:
 920                 {
 921                         struct cmd_ds_rf_reg_access *rfreg;
 922
 923                         cmdptr->size =
 924                             cpu_to_le16(sizeof
 925                                              (struct cmd_ds_rf_reg_access) +
 926                                              S_DS_GEN);
 927                         rfreg =
 928                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 929                             rfreg;
 930
 931                         rfreg->action = cpu_to_le16(cmd_action);
 932                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 933                         rfreg->value = (u8) offval->value;
 934
 935                         break;
 936                 }
 937
 938         default:
 939                 break;
 940         }
 941
 942         lbs_deb_leave(LBS_DEB_CMD);
 943         return 0;
 944 }
 945
 946 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 947                                u16 cmd_action, void *pdata_buf)
 948 {
 949         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 950         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 951
 952         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 953         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 954         cmd->result = 0;
 955         bt_access->action = cpu_to_le16(cmd_action);
 956
 957         switch (cmd_action) {
 958         case CMD_ACT_BT_ACCESS_ADD:
 959                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 960                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 961                 break;
 962         case CMD_ACT_BT_ACCESS_DEL:
 963                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 964                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 965                 break;
 966         case CMD_ACT_BT_ACCESS_LIST:
 967                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 968                 break;
 969         case CMD_ACT_BT_ACCESS_RESET:
 970                 break;
 971         case CMD_ACT_BT_ACCESS_SET_INVERT:
 972                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 973                 break;
 974         case CMD_ACT_BT_ACCESS_GET_INVERT:
 975                 break;
 976         default:
 977                 break;
 978         }
 979         lbs_deb_leave(LBS_DEB_CMD);
 980         return 0;
 981 }
 982
 983 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
 984                                u16 cmd_action, void *pdata_buf)
 985 {
 986         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
 987         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 988
 989         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
 990         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
 991         cmd->result = 0;
 992
 993         if (pdata_buf)
 994                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
 995         else
 996                 memset(fwt_access, 0, sizeof(*fwt_access));
 997
 998         fwt_access->action = cpu_to_le16(cmd_action);
 999
1000         lbs_deb_leave(LBS_DEB_CMD);
1001         return 0;
1002 }
1003
1004 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1005                     struct cmd_ds_mesh_access *cmd)
1006 {
1007         int ret;
1008
1009         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1010
1011         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1012         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1013         cmd->hdr.result = 0;
1014
1015         cmd->action = cpu_to_le16(cmd_action);
1016
1017         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1018
1019         lbs_deb_leave(LBS_DEB_CMD);
1020         return ret;
1021 }
1022
1023 static int __lbs_mesh_config_send(struct lbs_private *priv,
1024                                   struct cmd_ds_mesh_config *cmd,
1025                                   uint16_t action, uint16_t type)
1026 {
1027         int ret;
1028
1029         lbs_deb_enter(LBS_DEB_CMD);
1030
1031         cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
1032         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1033         cmd->hdr.result = 0;
1034
1035         cmd->type = cpu_to_le16(type);
1036         cmd->action = cpu_to_le16(action);
1037
1038         ret = lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
1039
1040         lbs_deb_leave(LBS_DEB_CMD);
1041         return ret;
1042 }
1043
1044 int lbs_mesh_config_send(struct lbs_private *priv,
1045                          struct cmd_ds_mesh_config *cmd,
1046                          uint16_t action, uint16_t type)
1047 {
1048         int ret;
1049
1050         if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1051                 return -EOPNOTSUPP;
1052
1053         ret = __lbs_mesh_config_send(priv, cmd, action, type);
1054         return ret;
1055 }
1056
1057 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
1058  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
1059  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1060  * lbs_mesh_config_send.
1061  */
1062 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1063 {
1064         struct cmd_ds_mesh_config cmd;
1065         struct mrvl_meshie *ie;
1066
1067         memset(&cmd, 0, sizeof(cmd));
1068         cmd.channel = cpu_to_le16(chan);
1069         ie = (struct mrvl_meshie *)cmd.data;
1070
1071         switch (action) {
1072         case CMD_ACT_MESH_CONFIG_START:
1073                 ie->hdr.id = MFIE_TYPE_GENERIC;
1074                 ie->val.oui[0] = 0x00;
1075                 ie->val.oui[1] = 0x50;
1076                 ie->val.oui[2] = 0x43;
1077                 ie->val.type = MARVELL_MESH_IE_TYPE;
1078                 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1079                 ie->val.version = MARVELL_MESH_IE_VERSION;
1080                 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1081                 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1082                 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1083                 ie->val.mesh_id_len = priv->mesh_ssid_len;
1084                 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1085                 ie->hdr.len = sizeof(struct mrvl_meshie_val) -
1086                         IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1087                 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1088                 break;
1089         case CMD_ACT_MESH_CONFIG_STOP:
1090                 break;
1091         default:
1092                 return -1;
1093         }
1094         lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1095                     action, priv->mesh_tlv, chan,
1096                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1097
1098         return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1099 }
1100
1101 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1102                                 struct cmd_ds_command *cmd,
1103                                 u16 cmd_action)
1104 {
1105         struct cmd_ds_802_11_beacon_control
1106                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1107
1108         lbs_deb_enter(LBS_DEB_CMD);
1109         cmd->size =
1110             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1111                              + S_DS_GEN);
1112         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1113
1114         bcn_ctrl->action = cpu_to_le16(cmd_action);
1115         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1116         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1117
1118         lbs_deb_leave(LBS_DEB_CMD);
1119         return 0;
1120 }
1121
1122 static void lbs_queue_cmd(struct lbs_private *priv,
1123                           struct cmd_ctrl_node *cmdnode)
1124 {
1125         unsigned long flags;
1126         int addtail = 1;
1127
1128         lbs_deb_enter(LBS_DEB_HOST);
1129
1130         if (!cmdnode) {
1131                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1132                 goto done;
1133         }
1134         if (!cmdnode->cmdbuf->size) {
1135                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1136                 goto done;
1137         }
1138         cmdnode->result = 0;
1139
1140         /* Exit_PS command needs to be queued in the header always. */
1141         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1142                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1143
1144                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1145                         if (priv->psstate != PS_STATE_FULL_POWER)
1146                                 addtail = 0;
1147                 }
1148         }
1149
1150         spin_lock_irqsave(&priv->driver_lock, flags);
1151
1152         if (addtail)
1153                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1154         else
1155                 list_add(&cmdnode->list, &priv->cmdpendingq);
1156
1157         spin_unlock_irqrestore(&priv->driver_lock, flags);
1158
1159         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1160                      le16_to_cpu(cmdnode->cmdbuf->command));
1161
1162 done:
1163         lbs_deb_leave(LBS_DEB_HOST);
1164 }
1165
1166 static void lbs_submit_command(struct lbs_private *priv,
1167                                struct cmd_ctrl_node *cmdnode)
1168 {
1169         unsigned long flags;
1170         struct cmd_header *cmd;
1171         uint16_t cmdsize;
1172         uint16_t command;
1173         int timeo = 3 * HZ;
1174         int ret;
1175
1176         lbs_deb_enter(LBS_DEB_HOST);
1177
1178         cmd = cmdnode->cmdbuf;
1179
1180         spin_lock_irqsave(&priv->driver_lock, flags);
1181         priv->cur_cmd = cmdnode;
1182         priv->cur_cmd_retcode = 0;
1183         spin_unlock_irqrestore(&priv->driver_lock, flags);
1184
1185         cmdsize = le16_to_cpu(cmd->size);
1186         command = le16_to_cpu(cmd->command);
1187
1188         /* These commands take longer */
1189         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1190             command == CMD_802_11_AUTHENTICATE)
1191                 timeo = 5 * HZ;
1192
1193         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1194                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1195         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1196
1197         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1198
1199         if (ret) {
1200                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1201                 /* Let the timer kick in and retry, and potentially reset
1202                    the whole thing if the condition persists */
1203                 timeo = HZ/4;
1204         }
1205
1206         /* Setup the timer after transmit command */
1207         mod_timer(&priv->command_timer, jiffies + timeo);
1208
1209         lbs_deb_leave(LBS_DEB_HOST);
1210 }
1211
1212 /**
1213  *  This function inserts command node to cmdfreeq
1214  *  after cleans it. Requires priv->driver_lock held.
1215  */
1216 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1217                                          struct cmd_ctrl_node *cmdnode)
1218 {
1219         lbs_deb_enter(LBS_DEB_HOST);
1220
1221         if (!cmdnode)
1222                 goto out;
1223
1224         cmdnode->callback = NULL;
1225         cmdnode->callback_arg = 0;
1226
1227         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1228
1229         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1230  out:
1231         lbs_deb_leave(LBS_DEB_HOST);
1232 }
1233
1234 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1235         struct cmd_ctrl_node *ptempcmd)
1236 {
1237         unsigned long flags;
1238
1239         spin_lock_irqsave(&priv->driver_lock, flags);
1240         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1241         spin_unlock_irqrestore(&priv->driver_lock, flags);
1242 }
1243
1244 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1245                           int result)
1246 {
1247         if (cmd == priv->cur_cmd)
1248                 priv->cur_cmd_retcode = result;
1249
1250         cmd->result = result;
1251         cmd->cmdwaitqwoken = 1;
1252         wake_up_interruptible(&cmd->cmdwait_q);
1253
1254         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1255                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1256         priv->cur_cmd = NULL;
1257 }
1258
1259 int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
1260 {
1261         struct cmd_ds_802_11_radio_control cmd;
1262         int ret = -EINVAL;
1263
1264         lbs_deb_enter(LBS_DEB_CMD);
1265
1266         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1267         cmd.action = cpu_to_le16(CMD_ACT_SET);
1268
1269         /* Only v8 and below support setting the preamble */
1270         if (priv->fwrelease < 0x09000000) {
1271                 switch (preamble) {
1272                 case RADIO_PREAMBLE_SHORT:
1273                         if (!(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
1274                                 goto out;
1275                         /* Fall through */
1276                 case RADIO_PREAMBLE_AUTO:
1277                 case RADIO_PREAMBLE_LONG:
1278                         cmd.control = cpu_to_le16(preamble);
1279                         break;
1280                 default:
1281                         goto out;
1282                 }
1283         }
1284
1285         if (radio_on)
1286                 cmd.control |= cpu_to_le16(0x1);
1287         else {
1288                 cmd.control &= cpu_to_le16(~0x1);
1289                 priv->txpower_cur = 0;
1290         }
1291
1292         lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1293                     radio_on ? "ON" : "OFF", preamble);
1294
1295         priv->radio_on = radio_on;
1296
1297         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1298
1299 out:
1300         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1301         return ret;
1302 }
1303
1304 void lbs_set_mac_control(struct lbs_private *priv)
1305 {
1306         struct cmd_ds_mac_control cmd;
1307
1308         lbs_deb_enter(LBS_DEB_CMD);
1309
1310         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1311         cmd.action = cpu_to_le16(priv->mac_control);
1312         cmd.reserved = 0;
1313
1314         lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1315
1316         lbs_deb_leave(LBS_DEB_CMD);
1317 }
1318
1319 /**
1320  *  @brief This function prepare the command before send to firmware.
1321  *
1322  *  @param priv         A pointer to struct lbs_private structure
1323  *  @param cmd_no       command number
1324  *  @param cmd_action   command action: GET or SET
1325  *  @param wait_option  wait option: wait response or not
1326  *  @param cmd_oid      cmd oid: treated as sub command
1327  *  @param pdata_buf    A pointer to informaion buffer
1328  *  @return             0 or -1
1329  */
1330 int lbs_prepare_and_send_command(struct lbs_private *priv,
1331                           u16 cmd_no,
1332                           u16 cmd_action,
1333                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1334 {
1335         int ret = 0;
1336         struct cmd_ctrl_node *cmdnode;
1337         struct cmd_ds_command *cmdptr;
1338         unsigned long flags;
1339
1340         lbs_deb_enter(LBS_DEB_HOST);
1341
1342         if (!priv) {
1343                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1344                 ret = -1;
1345                 goto done;
1346         }
1347
1348         if (priv->surpriseremoved) {
1349                 lbs_deb_host("PREP_CMD: card removed\n");
1350                 ret = -1;
1351                 goto done;
1352         }
1353
1354         cmdnode = lbs_get_cmd_ctrl_node(priv);
1355
1356         if (cmdnode == NULL) {
1357                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1358
1359                 /* Wake up main thread to execute next command */
1360                 wake_up_interruptible(&priv->waitq);
1361                 ret = -1;
1362                 goto done;
1363         }
1364
1365         cmdnode->callback = NULL;
1366         cmdnode->callback_arg = (unsigned long)pdata_buf;
1367
1368         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1369
1370         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1371
1372         /* Set sequence number, command and INT option */
1373         priv->seqnum++;
1374         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1375
1376         cmdptr->command = cpu_to_le16(cmd_no);
1377         cmdptr->result = 0;
1378
1379         switch (cmd_no) {
1380         case CMD_802_11_PS_MODE:
1381                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1382                 break;
1383
1384         case CMD_802_11_ASSOCIATE:
1385         case CMD_802_11_REASSOCIATE:
1386                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1387                 break;
1388
1389         case CMD_802_11_AUTHENTICATE:
1390                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1391                 break;
1392
1393         case CMD_MAC_REG_ACCESS:
1394         case CMD_BBP_REG_ACCESS:
1395         case CMD_RF_REG_ACCESS:
1396                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1397                 break;
1398
1399         case CMD_802_11_MONITOR_MODE:
1400                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1401                                           cmd_action, pdata_buf);
1402                 break;
1403
1404         case CMD_802_11_RSSI:
1405                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1406                 break;
1407
1408         case CMD_802_11_SET_AFC:
1409         case CMD_802_11_GET_AFC:
1410
1411                 cmdptr->command = cpu_to_le16(cmd_no);
1412                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1413                                            S_DS_GEN);
1414
1415                 memmove(&cmdptr->params.afc,
1416                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1417
1418                 ret = 0;
1419                 goto done;
1420
1421         case CMD_802_11D_DOMAIN_INFO:
1422                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1423                                                    cmd_no, cmd_action);
1424                 break;
1425
1426         case CMD_802_11_TPC_CFG:
1427                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1428                 cmdptr->size =
1429                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1430                                      S_DS_GEN);
1431
1432                 memmove(&cmdptr->params.tpccfg,
1433                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1434
1435                 ret = 0;
1436                 break;
1437         case CMD_802_11_LED_GPIO_CTRL:
1438                 {
1439                         struct mrvlietypes_ledgpio *gpio =
1440                             (struct mrvlietypes_ledgpio*)
1441                             cmdptr->params.ledgpio.data;
1442
1443                         memmove(&cmdptr->params.ledgpio,
1444                                 pdata_buf,
1445                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1446
1447                         cmdptr->command =
1448                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1449
1450 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1451                         cmdptr->size =
1452                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1453                                 + S_DS_GEN
1454                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1455                         gpio->header.len = gpio->header.len;
1456
1457                         ret = 0;
1458                         break;
1459                 }
1460
1461         case CMD_BT_ACCESS:
1462                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1463                 break;
1464
1465         case CMD_FWT_ACCESS:
1466                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1467                 break;
1468
1469         case CMD_GET_TSF:
1470                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1471                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1472                                            S_DS_GEN);
1473                 ret = 0;
1474                 break;
1475         case CMD_802_11_BEACON_CTRL:
1476                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1477                 break;
1478         default:
1479                 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1480                 ret = -1;
1481                 break;
1482         }
1483
1484         /* return error, since the command preparation failed */
1485         if (ret != 0) {
1486                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1487                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1488                 ret = -1;
1489                 goto done;
1490         }
1491
1492         cmdnode->cmdwaitqwoken = 0;
1493
1494         lbs_queue_cmd(priv, cmdnode);
1495         wake_up_interruptible(&priv->waitq);
1496
1497         if (wait_option & CMD_OPTION_WAITFORRSP) {
1498                 lbs_deb_host("PREP_CMD: wait for response\n");
1499                 might_sleep();
1500                 wait_event_interruptible(cmdnode->cmdwait_q,
1501                                          cmdnode->cmdwaitqwoken);
1502         }
1503
1504         spin_lock_irqsave(&priv->driver_lock, flags);
1505         if (priv->cur_cmd_retcode) {
1506                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1507                        priv->cur_cmd_retcode);
1508                 priv->cur_cmd_retcode = 0;
1509                 ret = -1;
1510         }
1511         spin_unlock_irqrestore(&priv->driver_lock, flags);
1512
1513 done:
1514         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1515         return ret;
1516 }
1517
1518 /**
1519  *  @brief This function allocates the command buffer and link
1520  *  it to command free queue.
1521  *
1522  *  @param priv         A pointer to struct lbs_private structure
1523  *  @return             0 or -1
1524  */
1525 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1526 {
1527         int ret = 0;
1528         u32 bufsize;
1529         u32 i;
1530         struct cmd_ctrl_node *cmdarray;
1531
1532         lbs_deb_enter(LBS_DEB_HOST);
1533
1534         /* Allocate and initialize the command array */
1535         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1536         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1537                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1538                 ret = -1;
1539                 goto done;
1540         }
1541         priv->cmd_array = cmdarray;
1542
1543         /* Allocate and initialize each command buffer in the command array */
1544         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1545                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1546                 if (!cmdarray[i].cmdbuf) {
1547                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1548                         ret = -1;
1549                         goto done;
1550                 }
1551         }
1552
1553         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1554                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1555                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1556         }
1557         ret = 0;
1558
1559 done:
1560         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1561         return ret;
1562 }
1563
1564 /**
1565  *  @brief This function frees the command buffer.
1566  *
1567  *  @param priv         A pointer to struct lbs_private structure
1568  *  @return             0 or -1
1569  */
1570 int lbs_free_cmd_buffer(struct lbs_private *priv)
1571 {
1572         struct cmd_ctrl_node *cmdarray;
1573         unsigned int i;
1574
1575         lbs_deb_enter(LBS_DEB_HOST);
1576
1577         /* need to check if cmd array is allocated or not */
1578         if (priv->cmd_array == NULL) {
1579                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1580                 goto done;
1581         }
1582
1583         cmdarray = priv->cmd_array;
1584
1585         /* Release shared memory buffers */
1586         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1587                 if (cmdarray[i].cmdbuf) {
1588                         kfree(cmdarray[i].cmdbuf);
1589                         cmdarray[i].cmdbuf = NULL;
1590                 }
1591         }
1592
1593         /* Release cmd_ctrl_node */
1594         if (priv->cmd_array) {
1595                 kfree(priv->cmd_array);
1596                 priv->cmd_array = NULL;
1597         }
1598
1599 done:
1600         lbs_deb_leave(LBS_DEB_HOST);
1601         return 0;
1602 }
1603
1604 /**
1605  *  @brief This function gets a free command node if available in
1606  *  command free queue.
1607  *
1608  *  @param priv         A pointer to struct lbs_private structure
1609  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1610  */
1611 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1612 {
1613         struct cmd_ctrl_node *tempnode;
1614         unsigned long flags;
1615
1616         lbs_deb_enter(LBS_DEB_HOST);
1617
1618         if (!priv)
1619                 return NULL;
1620
1621         spin_lock_irqsave(&priv->driver_lock, flags);
1622
1623         if (!list_empty(&priv->cmdfreeq)) {
1624                 tempnode = list_first_entry(&priv->cmdfreeq,
1625                                             struct cmd_ctrl_node, list);
1626                 list_del(&tempnode->list);
1627         } else {
1628                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1629                 tempnode = NULL;
1630         }
1631
1632         spin_unlock_irqrestore(&priv->driver_lock, flags);
1633
1634         lbs_deb_leave(LBS_DEB_HOST);
1635         return tempnode;
1636 }
1637
1638 /**
1639  *  @brief This function executes next command in command
1640  *  pending queue. It will put fimware back to PS mode
1641  *  if applicable.
1642  *
1643  *  @param priv     A pointer to struct lbs_private structure
1644  *  @return        0 or -1
1645  */
1646 int lbs_execute_next_command(struct lbs_private *priv)
1647 {
1648         struct cmd_ctrl_node *cmdnode = NULL;
1649         struct cmd_header *cmd;
1650         unsigned long flags;
1651         int ret = 0;
1652
1653         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1654          * only caller to us is lbs_thread() and we get even when a
1655          * data packet is received */
1656         lbs_deb_enter(LBS_DEB_THREAD);
1657
1658         spin_lock_irqsave(&priv->driver_lock, flags);
1659
1660         if (priv->cur_cmd) {
1661                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1662                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1663                 ret = -1;
1664                 goto done;
1665         }
1666
1667         if (!list_empty(&priv->cmdpendingq)) {
1668                 cmdnode = list_first_entry(&priv->cmdpendingq,
1669                                            struct cmd_ctrl_node, list);
1670         }
1671
1672         spin_unlock_irqrestore(&priv->driver_lock, flags);
1673
1674         if (cmdnode) {
1675                 cmd = cmdnode->cmdbuf;
1676
1677                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1678                         if ((priv->psstate == PS_STATE_SLEEP) ||
1679                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1680                                 lbs_deb_host(
1681                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1682                                        le16_to_cpu(cmd->command),
1683                                        priv->psstate);
1684                                 ret = -1;
1685                                 goto done;
1686                         }
1687                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1688                                      "0x%04x in psstate %d\n",
1689                                      le16_to_cpu(cmd->command), priv->psstate);
1690                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1691                         /*
1692                          * 1. Non-PS command:
1693                          * Queue it. set needtowakeup to TRUE if current state
1694                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1695                          * 2. PS command but not Exit_PS:
1696                          * Ignore it.
1697                          * 3. PS command Exit_PS:
1698                          * Set needtowakeup to TRUE if current state is SLEEP,
1699                          * otherwise send this command down to firmware
1700                          * immediately.
1701                          */
1702                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1703                                 /*  Prepare to send Exit PS,
1704                                  *  this non PS command will be sent later */
1705                                 if ((priv->psstate == PS_STATE_SLEEP)
1706                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1707                                     ) {
1708                                         /* w/ new scheme, it will not reach here.
1709                                            since it is blocked in main_thread. */
1710                                         priv->needtowakeup = 1;
1711                                 } else
1712                                         lbs_ps_wakeup(priv, 0);
1713
1714                                 ret = 0;
1715                                 goto done;
1716                         } else {
1717                                 /*
1718                                  * PS command. Ignore it if it is not Exit_PS.
1719                                  * otherwise send it down immediately.
1720                                  */
1721                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1722
1723                                 lbs_deb_host(
1724                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1725                                        psm->action);
1726                                 if (psm->action !=
1727                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1728                                         lbs_deb_host(
1729                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1730                                         list_del(&cmdnode->list);
1731                                         spin_lock_irqsave(&priv->driver_lock, flags);
1732                                         lbs_complete_command(priv, cmdnode, 0);
1733                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1734
1735                                         ret = 0;
1736                                         goto done;
1737                                 }
1738
1739                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1740                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1741                                         lbs_deb_host(
1742                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1743                                         list_del(&cmdnode->list);
1744                                         spin_lock_irqsave(&priv->driver_lock, flags);
1745                                         lbs_complete_command(priv, cmdnode, 0);
1746                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1747                                         priv->needtowakeup = 1;
1748
1749                                         ret = 0;
1750                                         goto done;
1751                                 }
1752
1753                                 lbs_deb_host(
1754                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1755                         }
1756                 }
1757                 list_del(&cmdnode->list);
1758                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1759                             le16_to_cpu(cmd->command));
1760                 lbs_submit_command(priv, cmdnode);
1761         } else {
1762                 /*
1763                  * check if in power save mode, if yes, put the device back
1764                  * to PS mode
1765                  */
1766                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1767                     (priv->psstate == PS_STATE_FULL_POWER) &&
1768                     ((priv->connect_status == LBS_CONNECTED) ||
1769                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1770                         if (priv->secinfo.WPAenabled ||
1771                             priv->secinfo.WPA2enabled) {
1772                                 /* check for valid WPA group keys */
1773                                 if (priv->wpa_mcast_key.len ||
1774                                     priv->wpa_unicast_key.len) {
1775                                         lbs_deb_host(
1776                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1777                                                " go back to PS_SLEEP");
1778                                         lbs_ps_sleep(priv, 0);
1779                                 }
1780                         } else {
1781                                 lbs_deb_host(
1782                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1783                                        "go back to PS_SLEEP");
1784                                 lbs_ps_sleep(priv, 0);
1785                         }
1786                 }
1787         }
1788
1789         ret = 0;
1790 done:
1791         lbs_deb_leave(LBS_DEB_THREAD);
1792         return ret;
1793 }
1794
1795 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1796 {
1797         union iwreq_data iwrq;
1798         u8 buf[50];
1799
1800         lbs_deb_enter(LBS_DEB_WEXT);
1801
1802         memset(&iwrq, 0, sizeof(union iwreq_data));
1803         memset(buf, 0, sizeof(buf));
1804
1805         snprintf(buf, sizeof(buf) - 1, "%s", str);
1806
1807         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1808
1809         /* Send Event to upper layer */
1810         lbs_deb_wext("event indication string %s\n", (char *)buf);
1811         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1812         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1813
1814         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1815
1816         lbs_deb_leave(LBS_DEB_WEXT);
1817 }
1818
1819 static void lbs_send_confirmsleep(struct lbs_private *priv)
1820 {
1821         unsigned long flags;
1822         int ret;
1823
1824         lbs_deb_enter(LBS_DEB_HOST);
1825         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1826                 sizeof(confirm_sleep));
1827
1828         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1829                 sizeof(confirm_sleep));
1830         if (ret) {
1831                 lbs_pr_alert("confirm_sleep failed\n");
1832                 goto out;
1833         }
1834
1835         spin_lock_irqsave(&priv->driver_lock, flags);
1836
1837         /* We don't get a response on the sleep-confirmation */
1838         priv->dnld_sent = DNLD_RES_RECEIVED;
1839
1840         /* If nothing to do, go back to sleep (?) */
1841         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1842                 priv->psstate = PS_STATE_SLEEP;
1843
1844         spin_unlock_irqrestore(&priv->driver_lock, flags);
1845
1846 out:
1847         lbs_deb_leave(LBS_DEB_HOST);
1848 }
1849
1850 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1851 {
1852         lbs_deb_enter(LBS_DEB_HOST);
1853
1854         /*
1855          * PS is currently supported only in Infrastructure mode
1856          * Remove this check if it is to be supported in IBSS mode also
1857          */
1858
1859         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1860                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1861
1862         lbs_deb_leave(LBS_DEB_HOST);
1863 }
1864
1865 /**
1866  *  @brief This function sends Exit_PS command to firmware.
1867  *
1868  *  @param priv         A pointer to struct lbs_private structure
1869  *  @param wait_option  wait response or not
1870  *  @return             n/a
1871  */
1872 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1873 {
1874         __le32 Localpsmode;
1875
1876         lbs_deb_enter(LBS_DEB_HOST);
1877
1878         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1879
1880         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1881                               CMD_SUBCMD_EXIT_PS,
1882                               wait_option, 0, &Localpsmode);
1883
1884         lbs_deb_leave(LBS_DEB_HOST);
1885 }
1886
1887 /**
1888  *  @brief This function checks condition and prepares to
1889  *  send sleep confirm command to firmware if ok.
1890  *
1891  *  @param priv         A pointer to struct lbs_private structure
1892  *  @param psmode       Power Saving mode
1893  *  @return             n/a
1894  */
1895 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1896 {
1897         unsigned long flags =0;
1898         int allowed = 1;
1899
1900         lbs_deb_enter(LBS_DEB_HOST);
1901
1902         spin_lock_irqsave(&priv->driver_lock, flags);
1903         if (priv->dnld_sent) {
1904                 allowed = 0;
1905                 lbs_deb_host("dnld_sent was set\n");
1906         }
1907
1908         /* In-progress command? */
1909         if (priv->cur_cmd) {
1910                 allowed = 0;
1911                 lbs_deb_host("cur_cmd was set\n");
1912         }
1913
1914         /* Pending events or command responses? */
1915         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1916                 allowed = 0;
1917                 lbs_deb_host("pending events or command responses\n");
1918         }
1919         spin_unlock_irqrestore(&priv->driver_lock, flags);
1920
1921         if (allowed) {
1922                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1923                 lbs_send_confirmsleep(priv);
1924         } else {
1925                 lbs_deb_host("sleep confirm has been delayed\n");
1926         }
1927
1928         lbs_deb_leave(LBS_DEB_HOST);
1929 }
1930
1931
1932 /**
1933  * @brief Configures the transmission power control functionality.
1934  *
1935  * @param priv          A pointer to struct lbs_private structure
1936  * @param enable        Transmission power control enable
1937  * @param p0            Power level when link quality is good (dBm).
1938  * @param p1            Power level when link quality is fair (dBm).
1939  * @param p2            Power level when link quality is poor (dBm).
1940  * @param usesnr        Use Signal to Noise Ratio in TPC
1941  *
1942  * @return 0 on success
1943  */
1944 int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
1945                 int8_t p2, int usesnr)
1946 {
1947         struct cmd_ds_802_11_tpc_cfg cmd;
1948         int ret;
1949
1950         memset(&cmd, 0, sizeof(cmd));
1951         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1952         cmd.action = cpu_to_le16(CMD_ACT_SET);
1953         cmd.enable = !!enable;
1954         cmd.usesnr = !!usesnr;
1955         cmd.P0 = p0;
1956         cmd.P1 = p1;
1957         cmd.P2 = p2;
1958
1959         ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
1960
1961         return ret;
1962 }
1963
1964 /**
1965  * @brief Configures the power adaptation settings.
1966  *
1967  * @param priv          A pointer to struct lbs_private structure
1968  * @param enable        Power adaptation enable
1969  * @param p0            Power level for 1, 2, 5.5 and 11 Mbps (dBm).
1970  * @param p1            Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
1971  * @param p2            Power level for 48 and 54 Mbps (dBm).
1972  *
1973  * @return 0 on Success
1974  */
1975
1976 int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
1977                 int8_t p1, int8_t p2)
1978 {
1979         struct cmd_ds_802_11_pa_cfg cmd;
1980         int ret;
1981
1982         memset(&cmd, 0, sizeof(cmd));
1983         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1984         cmd.action = cpu_to_le16(CMD_ACT_SET);
1985         cmd.enable = !!enable;
1986         cmd.P0 = p0;
1987         cmd.P1 = p1;
1988         cmd.P2 = p2;
1989
1990         ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
1991
1992         return ret;
1993 }
1994
1995
1996 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1997         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1998         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1999         unsigned long callback_arg)
2000 {
2001         struct cmd_ctrl_node *cmdnode;
2002
2003         lbs_deb_enter(LBS_DEB_HOST);
2004
2005         if (priv->surpriseremoved) {
2006                 lbs_deb_host("PREP_CMD: card removed\n");
2007                 cmdnode = ERR_PTR(-ENOENT);
2008                 goto done;
2009         }
2010
2011         cmdnode = lbs_get_cmd_ctrl_node(priv);
2012         if (cmdnode == NULL) {
2013                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2014
2015                 /* Wake up main thread to execute next command */
2016                 wake_up_interruptible(&priv->waitq);
2017                 cmdnode = ERR_PTR(-ENOBUFS);
2018                 goto done;
2019         }
2020
2021         cmdnode->callback = callback;
2022         cmdnode->callback_arg = callback_arg;
2023
2024         /* Copy the incoming command to the buffer */
2025         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2026
2027         /* Set sequence number, clean result, move to buffer */
2028         priv->seqnum++;
2029         cmdnode->cmdbuf->command = cpu_to_le16(command);
2030         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2031         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2032         cmdnode->cmdbuf->result  = 0;
2033
2034         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2035
2036         cmdnode->cmdwaitqwoken = 0;
2037         lbs_queue_cmd(priv, cmdnode);
2038         wake_up_interruptible(&priv->waitq);
2039
2040  done:
2041         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2042         return cmdnode;
2043 }
2044
2045 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2046         struct cmd_header *in_cmd, int in_cmd_size)
2047 {
2048         lbs_deb_enter(LBS_DEB_CMD);
2049         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2050                 lbs_cmd_async_callback, 0);
2051         lbs_deb_leave(LBS_DEB_CMD);
2052 }
2053
2054 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2055               struct cmd_header *in_cmd, int in_cmd_size,
2056               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2057               unsigned long callback_arg)
2058 {
2059         struct cmd_ctrl_node *cmdnode;
2060         unsigned long flags;
2061         int ret = 0;
2062
2063         lbs_deb_enter(LBS_DEB_HOST);
2064
2065         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2066                                   callback, callback_arg);
2067         if (IS_ERR(cmdnode)) {
2068                 ret = PTR_ERR(cmdnode);
2069                 goto done;
2070         }
2071
2072         might_sleep();
2073         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2074
2075         spin_lock_irqsave(&priv->driver_lock, flags);
2076         ret = cmdnode->result;
2077         if (ret)
2078                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2079                             command, ret);
2080
2081         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2082         spin_unlock_irqrestore(&priv->driver_lock, flags);
2083
2084 done:
2085         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2086         return ret;
2087 }
2088 EXPORT_SYMBOL_GPL(__lbs_cmd);
2089
2090