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

   1 /**
   2   * This file contains the handling of command.
   3   * It prepares command and sends it to firmware when it is ready.
   4   */
   5
   6 #include <net/iw_handler.h>
   7 #include <linux/kfifo.h>
   8 #include "host.h"
   9 #include "hostcmd.h"
  10 #include "decl.h"
  11 #include "defs.h"
  12 #include "dev.h"
  13 #include "assoc.h"
  14 #include "wext.h"
  15 #include "cmd.h"
  16
  17 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
  18
  19
  20 /**
  21  *  @brief Simple callback that copies response back into command
  22  *
  23  *  @param priv         A pointer to struct lbs_private structure
  24  *  @param extra        A pointer to the original command structure for which
  25  *                      'resp' is a response
  26  *  @param resp         A pointer to the command response
  27  *
  28  *  @return             0 on success, error on failure
  29  */
  30 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
  31                      struct cmd_header *resp)
  32 {
  33         struct cmd_header *buf = (void *)extra;
  34         uint16_t copy_len;
  35
  36         copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
  37         memcpy(buf, resp, copy_len);
  38         return 0;
  39 }
  40 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
  41
  42 /**
  43  *  @brief Simple callback that ignores the result. Use this if
  44  *  you just want to send a command to the hardware, but don't
  45  *  care for the result.
  46  *
  47  *  @param priv         ignored
  48  *  @param extra        ignored
  49  *  @param resp         ignored
  50  *
  51  *  @return             0 for success
  52  */
  53 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
  54                      struct cmd_header *resp)
  55 {
  56         return 0;
  57 }
  58
  59
  60 /**
  61  *  @brief Checks whether a command is allowed in Power Save mode
  62  *
  63  *  @param command the command ID
  64  *  @return        1 if allowed, 0 if not allowed
  65  */
  66 static u8 is_command_allowed_in_ps(u16 cmd)
  67 {
  68         switch (cmd) {
  69         case CMD_802_11_RSSI:
  70                 return 1;
  71         default:
  72                 break;
  73         }
  74         return 0;
  75 }
  76
  77 /**
  78  *  @brief Updates the hardware details like MAC address and regulatory region
  79  *
  80  *  @param priv         A pointer to struct lbs_private structure
  81  *
  82  *  @return             0 on success, error on failure
  83  */
  84 int lbs_update_hw_spec(struct lbs_private *priv)
  85 {
  86         struct cmd_ds_get_hw_spec cmd;
  87         int ret = -1;
  88         u32 i;
  89         DECLARE_MAC_BUF(mac);
  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         printk("libertas: %s, fw %u.%u.%up%u, cap 0x%08x\n",
 113                 print_mac(mac, 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 static int lbs_cmd_802_11_reset(struct cmd_ds_command *cmd, int cmd_action)
 483 {
 484         struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
 485
 486         lbs_deb_enter(LBS_DEB_CMD);
 487
 488         cmd->command = cpu_to_le16(CMD_802_11_RESET);
 489         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
 490         reset->action = cpu_to_le16(cmd_action);
 491
 492         lbs_deb_leave(LBS_DEB_CMD);
 493         return 0;
 494 }
 495
 496 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
 497                                     struct cmd_ds_command *cmd,
 498                                     int cmd_action,
 499                                     int cmd_oid, void *pdata_buf)
 500 {
 501         struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
 502         u8 ucTemp;
 503
 504         lbs_deb_enter(LBS_DEB_CMD);
 505
 506         lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
 507
 508         cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
 509         cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
 510
 511         switch (cmd_oid) {
 512         case OID_802_11_INFRASTRUCTURE_MODE:
 513         {
 514                 u8 mode = (u8) (size_t) pdata_buf;
 515                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 516                 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
 517                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
 518                 if (mode == IW_MODE_ADHOC) {
 519                         ucTemp = SNMP_MIB_VALUE_ADHOC;
 520                 } else {
 521                         /* Infra and Auto modes */
 522                         ucTemp = SNMP_MIB_VALUE_INFRA;
 523                 }
 524
 525                 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
 526
 527                 break;
 528         }
 529
 530         case OID_802_11D_ENABLE:
 531                 {
 532                         u32 ulTemp;
 533
 534                         pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
 535
 536                         if (cmd_action == CMD_ACT_SET) {
 537                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 538                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 539                                 ulTemp = *(u32 *)pdata_buf;
 540                                 *((__le16 *)(pSNMPMIB->value)) =
 541                                     cpu_to_le16((u16) ulTemp);
 542                         }
 543                         break;
 544                 }
 545
 546         case OID_802_11_FRAGMENTATION_THRESHOLD:
 547                 {
 548                         u32 ulTemp;
 549
 550                         pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
 551
 552                         if (cmd_action == CMD_ACT_GET) {
 553                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 554                         } else if (cmd_action == CMD_ACT_SET) {
 555                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 556                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 557                                 ulTemp = *((u32 *) pdata_buf);
 558                                 *((__le16 *)(pSNMPMIB->value)) =
 559                                     cpu_to_le16((u16) ulTemp);
 560
 561                         }
 562
 563                         break;
 564                 }
 565
 566         case OID_802_11_RTS_THRESHOLD:
 567                 {
 568
 569                         u32 ulTemp;
 570                         pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
 571
 572                         if (cmd_action == CMD_ACT_GET) {
 573                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 574                         } else if (cmd_action == CMD_ACT_SET) {
 575                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 576                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 577                                 ulTemp = *((u32 *)pdata_buf);
 578                                 *(__le16 *)(pSNMPMIB->value) =
 579                                     cpu_to_le16((u16) ulTemp);
 580
 581                         }
 582                         break;
 583                 }
 584         case OID_802_11_TX_RETRYCOUNT:
 585                 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
 586
 587                 if (cmd_action == CMD_ACT_GET) {
 588                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 589                 } else if (cmd_action == CMD_ACT_SET) {
 590                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 591                         pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 592                         *((__le16 *)(pSNMPMIB->value)) =
 593                             cpu_to_le16((u16) priv->txretrycount);
 594                 }
 595
 596                 break;
 597         default:
 598                 break;
 599         }
 600
 601         lbs_deb_cmd(
 602                "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
 603                le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
 604                le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
 605
 606         lbs_deb_cmd(
 607                "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
 608                le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
 609                le16_to_cpu(pSNMPMIB->bufsize),
 610                le16_to_cpu(*(__le16 *) pSNMPMIB->value));
 611
 612         lbs_deb_leave(LBS_DEB_CMD);
 613         return 0;
 614 }
 615
 616 static int lbs_cmd_802_11_rf_tx_power(struct cmd_ds_command *cmd,
 617                                        u16 cmd_action, void *pdata_buf)
 618 {
 619
 620         struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
 621
 622         lbs_deb_enter(LBS_DEB_CMD);
 623
 624         cmd->size =
 625             cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
 626         cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
 627         prtp->action = cpu_to_le16(cmd_action);
 628
 629         lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
 630                     le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
 631                     le16_to_cpu(prtp->action));
 632
 633         switch (cmd_action) {
 634         case CMD_ACT_TX_POWER_OPT_GET:
 635                 prtp->action = cpu_to_le16(CMD_ACT_GET);
 636                 prtp->currentlevel = 0;
 637                 break;
 638
 639         case CMD_ACT_TX_POWER_OPT_SET_HIGH:
 640                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 641                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
 642                 break;
 643
 644         case CMD_ACT_TX_POWER_OPT_SET_MID:
 645                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 646                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
 647                 break;
 648
 649         case CMD_ACT_TX_POWER_OPT_SET_LOW:
 650                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 651                 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
 652                 break;
 653         }
 654
 655         lbs_deb_leave(LBS_DEB_CMD);
 656         return 0;
 657 }
 658
 659 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
 660                                       u16 cmd_action, void *pdata_buf)
 661 {
 662         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 663
 664         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 665         cmd->size =
 666             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 667                              S_DS_GEN);
 668
 669         monitor->action = cpu_to_le16(cmd_action);
 670         if (cmd_action == CMD_ACT_SET) {
 671                 monitor->mode =
 672                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 673         }
 674
 675         return 0;
 676 }
 677
 678 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 679                                               struct cmd_ds_command *cmd,
 680                                               u16 cmd_action)
 681 {
 682         struct cmd_ds_802_11_rate_adapt_rateset
 683         *rateadapt = &cmd->params.rateset;
 684
 685         lbs_deb_enter(LBS_DEB_CMD);
 686         cmd->size =
 687             cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
 688                              + S_DS_GEN);
 689         cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
 690
 691         rateadapt->action = cpu_to_le16(cmd_action);
 692         rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
 693         rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
 694
 695         lbs_deb_leave(LBS_DEB_CMD);
 696         return 0;
 697 }
 698
 699 /**
 700  *  @brief Get the current data rate
 701  *
 702  *  @param priv         A pointer to struct lbs_private structure
 703  *
 704  *  @return             The data rate on success, error on failure
 705  */
 706 int lbs_get_data_rate(struct lbs_private *priv)
 707 {
 708         struct cmd_ds_802_11_data_rate cmd;
 709         int ret = -1;
 710
 711         lbs_deb_enter(LBS_DEB_CMD);
 712
 713         memset(&cmd, 0, sizeof(cmd));
 714         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 715         cmd.action = cpu_to_le16(CMD_ACT_GET_TX_RATE);
 716
 717         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 718         if (ret)
 719                 goto out;
 720
 721         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 722
 723         ret = (int) lbs_fw_index_to_data_rate(cmd.rates[0]);
 724         lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", ret);
 725
 726 out:
 727         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 728         return ret;
 729 }
 730
 731 /**
 732  *  @brief Set the data rate
 733  *
 734  *  @param priv         A pointer to struct lbs_private structure
 735  *  @param rate         The desired data rate, or 0 to clear a locked rate
 736  *
 737  *  @return             0 on success, error on failure
 738  */
 739 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 740 {
 741         struct cmd_ds_802_11_data_rate cmd;
 742         int ret = 0;
 743
 744         lbs_deb_enter(LBS_DEB_CMD);
 745
 746         memset(&cmd, 0, sizeof(cmd));
 747         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 748
 749         if (rate > 0) {
 750                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 751                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 752                 if (cmd.rates[0] == 0) {
 753                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 754                                     " 0x%02X\n", rate);
 755                         ret = 0;
 756                         goto out;
 757                 }
 758                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 759         } else {
 760                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 761                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 762         }
 763
 764         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 765         if (ret)
 766                 goto out;
 767
 768         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 769
 770         /* FIXME: get actual rates FW can do if this command actually returns
 771          * all data rates supported.
 772          */
 773         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 774         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 775
 776 out:
 777         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 778         return ret;
 779 }
 780
 781 static int lbs_cmd_mac_multicast_adr(struct lbs_private *priv,
 782                                       struct cmd_ds_command *cmd,
 783                                       u16 cmd_action)
 784 {
 785         struct cmd_ds_mac_multicast_adr *pMCastAdr = &cmd->params.madr;
 786
 787         lbs_deb_enter(LBS_DEB_CMD);
 788         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_multicast_adr) +
 789                              S_DS_GEN);
 790         cmd->command = cpu_to_le16(CMD_MAC_MULTICAST_ADR);
 791
 792         lbs_deb_cmd("MULTICAST_ADR: setting %d addresses\n", pMCastAdr->nr_of_adrs);
 793         pMCastAdr->action = cpu_to_le16(cmd_action);
 794         pMCastAdr->nr_of_adrs =
 795             cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
 796         memcpy(pMCastAdr->maclist, priv->multicastlist,
 797                priv->nr_of_multicastmacaddr * ETH_ALEN);
 798
 799         lbs_deb_leave(LBS_DEB_CMD);
 800         return 0;
 801 }
 802
 803 /**
 804  *  @brief Get the radio channel
 805  *
 806  *  @param priv         A pointer to struct lbs_private structure
 807  *
 808  *  @return             The channel on success, error on failure
 809  */
 810 int lbs_get_channel(struct lbs_private *priv)
 811 {
 812         struct cmd_ds_802_11_rf_channel cmd;
 813         int ret = 0;
 814
 815         lbs_deb_enter(LBS_DEB_CMD);
 816
 817         memset(&cmd, 0, sizeof(cmd));
 818         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 819         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 820
 821         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 822         if (ret)
 823                 goto out;
 824
 825         ret = le16_to_cpu(cmd.channel);
 826         lbs_deb_cmd("current radio channel is %d\n", ret);
 827
 828 out:
 829         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 830         return ret;
 831 }
 832
 833 int lbs_update_channel(struct lbs_private *priv)
 834 {
 835         int ret;
 836
 837         /* the channel in f/w could be out of sync; get the current channel */
 838         lbs_deb_enter(LBS_DEB_ASSOC);
 839
 840         ret = lbs_get_channel(priv);
 841         if (ret > 0) {
 842                 priv->curbssparams.channel = ret;
 843                 ret = 0;
 844         }
 845         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 846         return ret;
 847 }
 848
 849 /**
 850  *  @brief Set the radio channel
 851  *
 852  *  @param priv         A pointer to struct lbs_private structure
 853  *  @param channel      The desired channel, or 0 to clear a locked channel
 854  *
 855  *  @return             0 on success, error on failure
 856  */
 857 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 858 {
 859         struct cmd_ds_802_11_rf_channel cmd;
 860         u8 old_channel = priv->curbssparams.channel;
 861         int ret = 0;
 862
 863         lbs_deb_enter(LBS_DEB_CMD);
 864
 865         memset(&cmd, 0, sizeof(cmd));
 866         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 867         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 868         cmd.channel = cpu_to_le16(channel);
 869
 870         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 871         if (ret)
 872                 goto out;
 873
 874         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 875         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 876                 priv->curbssparams.channel);
 877
 878 out:
 879         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 880         return ret;
 881 }
 882
 883 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 884                                 struct cmd_ds_command *cmd)
 885 {
 886
 887         lbs_deb_enter(LBS_DEB_CMD);
 888         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 889         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 890         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 891
 892         /* reset Beacon SNR/NF/RSSI values */
 893         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 894         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 895         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 896         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 897         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 898         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 899
 900         lbs_deb_leave(LBS_DEB_CMD);
 901         return 0;
 902 }
 903
 904 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 905                                u8 cmd_action, void *pdata_buf)
 906 {
 907         struct lbs_offset_value *offval;
 908
 909         lbs_deb_enter(LBS_DEB_CMD);
 910
 911         offval = (struct lbs_offset_value *)pdata_buf;
 912
 913         switch (le16_to_cpu(cmdptr->command)) {
 914         case CMD_MAC_REG_ACCESS:
 915                 {
 916                         struct cmd_ds_mac_reg_access *macreg;
 917
 918                         cmdptr->size =
 919                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 920                                         + S_DS_GEN);
 921                         macreg =
 922                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 923                             macreg;
 924
 925                         macreg->action = cpu_to_le16(cmd_action);
 926                         macreg->offset = cpu_to_le16((u16) offval->offset);
 927                         macreg->value = cpu_to_le32(offval->value);
 928
 929                         break;
 930                 }
 931
 932         case CMD_BBP_REG_ACCESS:
 933                 {
 934                         struct cmd_ds_bbp_reg_access *bbpreg;
 935
 936                         cmdptr->size =
 937                             cpu_to_le16(sizeof
 938                                              (struct cmd_ds_bbp_reg_access)
 939                                              + S_DS_GEN);
 940                         bbpreg =
 941                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 942                             bbpreg;
 943
 944                         bbpreg->action = cpu_to_le16(cmd_action);
 945                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 946                         bbpreg->value = (u8) offval->value;
 947
 948                         break;
 949                 }
 950
 951         case CMD_RF_REG_ACCESS:
 952                 {
 953                         struct cmd_ds_rf_reg_access *rfreg;
 954
 955                         cmdptr->size =
 956                             cpu_to_le16(sizeof
 957                                              (struct cmd_ds_rf_reg_access) +
 958                                              S_DS_GEN);
 959                         rfreg =
 960                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 961                             rfreg;
 962
 963                         rfreg->action = cpu_to_le16(cmd_action);
 964                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 965                         rfreg->value = (u8) offval->value;
 966
 967                         break;
 968                 }
 969
 970         default:
 971                 break;
 972         }
 973
 974         lbs_deb_leave(LBS_DEB_CMD);
 975         return 0;
 976 }
 977
 978 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 979                                u16 cmd_action, void *pdata_buf)
 980 {
 981         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 982         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 983
 984         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 985         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 986         cmd->result = 0;
 987         bt_access->action = cpu_to_le16(cmd_action);
 988
 989         switch (cmd_action) {
 990         case CMD_ACT_BT_ACCESS_ADD:
 991                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 992                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 993                 break;
 994         case CMD_ACT_BT_ACCESS_DEL:
 995                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 996                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 997                 break;
 998         case CMD_ACT_BT_ACCESS_LIST:
 999                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1000                 break;
1001         case CMD_ACT_BT_ACCESS_RESET:
1002                 break;
1003         case CMD_ACT_BT_ACCESS_SET_INVERT:
1004                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1005                 break;
1006         case CMD_ACT_BT_ACCESS_GET_INVERT:
1007                 break;
1008         default:
1009                 break;
1010         }
1011         lbs_deb_leave(LBS_DEB_CMD);
1012         return 0;
1013 }
1014
1015 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1016                                u16 cmd_action, void *pdata_buf)
1017 {
1018         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1019         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1020
1021         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1022         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1023         cmd->result = 0;
1024
1025         if (pdata_buf)
1026                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1027         else
1028                 memset(fwt_access, 0, sizeof(*fwt_access));
1029
1030         fwt_access->action = cpu_to_le16(cmd_action);
1031
1032         lbs_deb_leave(LBS_DEB_CMD);
1033         return 0;
1034 }
1035
1036 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1037                     struct cmd_ds_mesh_access *cmd)
1038 {
1039         int ret;
1040
1041         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1042
1043         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1044         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1045         cmd->hdr.result = 0;
1046
1047         cmd->action = cpu_to_le16(cmd_action);
1048
1049         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1050
1051         lbs_deb_leave(LBS_DEB_CMD);
1052         return ret;
1053 }
1054
1055 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1056 {
1057         struct cmd_ds_mesh_config cmd;
1058
1059         memset(&cmd, 0, sizeof(cmd));
1060         cmd.action = cpu_to_le16(enable);
1061         cmd.channel = cpu_to_le16(chan);
1062         cmd.type = cpu_to_le16(priv->mesh_tlv);
1063         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1064
1065         if (enable) {
1066                 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1067                 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1068         }
1069         lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1070                     enable, priv->mesh_tlv, chan,
1071                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1072         return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1073 }
1074
1075 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1076                                 struct cmd_ds_command *cmd,
1077                                 u16 cmd_action)
1078 {
1079         struct cmd_ds_802_11_beacon_control
1080                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1081
1082         lbs_deb_enter(LBS_DEB_CMD);
1083         cmd->size =
1084             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1085                              + S_DS_GEN);
1086         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1087
1088         bcn_ctrl->action = cpu_to_le16(cmd_action);
1089         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1090         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1091
1092         lbs_deb_leave(LBS_DEB_CMD);
1093         return 0;
1094 }
1095
1096 static void lbs_queue_cmd(struct lbs_private *priv,
1097                           struct cmd_ctrl_node *cmdnode)
1098 {
1099         unsigned long flags;
1100         int addtail = 1;
1101
1102         lbs_deb_enter(LBS_DEB_HOST);
1103
1104         if (!cmdnode) {
1105                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1106                 goto done;
1107         }
1108         if (!cmdnode->cmdbuf->size) {
1109                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1110                 goto done;
1111         }
1112         cmdnode->result = 0;
1113
1114         /* Exit_PS command needs to be queued in the header always. */
1115         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1116                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1117
1118                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1119                         if (priv->psstate != PS_STATE_FULL_POWER)
1120                                 addtail = 0;
1121                 }
1122         }
1123
1124         spin_lock_irqsave(&priv->driver_lock, flags);
1125
1126         if (addtail)
1127                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1128         else
1129                 list_add(&cmdnode->list, &priv->cmdpendingq);
1130
1131         spin_unlock_irqrestore(&priv->driver_lock, flags);
1132
1133         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1134                      le16_to_cpu(cmdnode->cmdbuf->command));
1135
1136 done:
1137         lbs_deb_leave(LBS_DEB_HOST);
1138 }
1139
1140 static void lbs_submit_command(struct lbs_private *priv,
1141                                struct cmd_ctrl_node *cmdnode)
1142 {
1143         unsigned long flags;
1144         struct cmd_header *cmd;
1145         uint16_t cmdsize;
1146         uint16_t command;
1147         int timeo = 5 * HZ;
1148         int ret;
1149
1150         lbs_deb_enter(LBS_DEB_HOST);
1151
1152         cmd = cmdnode->cmdbuf;
1153
1154         spin_lock_irqsave(&priv->driver_lock, flags);
1155         priv->cur_cmd = cmdnode;
1156         priv->cur_cmd_retcode = 0;
1157         spin_unlock_irqrestore(&priv->driver_lock, flags);
1158
1159         cmdsize = le16_to_cpu(cmd->size);
1160         command = le16_to_cpu(cmd->command);
1161
1162         /* These commands take longer */
1163         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1164             command == CMD_802_11_AUTHENTICATE)
1165                 timeo = 10 * HZ;
1166
1167         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1168                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1169         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1170
1171         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1172
1173         if (ret) {
1174                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1175                 /* Let the timer kick in and retry, and potentially reset
1176                    the whole thing if the condition persists */
1177                 timeo = HZ;
1178         }
1179
1180         /* Setup the timer after transmit command */
1181         mod_timer(&priv->command_timer, jiffies + timeo);
1182
1183         lbs_deb_leave(LBS_DEB_HOST);
1184 }
1185
1186 /**
1187  *  This function inserts command node to cmdfreeq
1188  *  after cleans it. Requires priv->driver_lock held.
1189  */
1190 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1191                                          struct cmd_ctrl_node *cmdnode)
1192 {
1193         lbs_deb_enter(LBS_DEB_HOST);
1194
1195         if (!cmdnode)
1196                 goto out;
1197
1198         cmdnode->callback = NULL;
1199         cmdnode->callback_arg = 0;
1200
1201         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1202
1203         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1204  out:
1205         lbs_deb_leave(LBS_DEB_HOST);
1206 }
1207
1208 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1209         struct cmd_ctrl_node *ptempcmd)
1210 {
1211         unsigned long flags;
1212
1213         spin_lock_irqsave(&priv->driver_lock, flags);
1214         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1215         spin_unlock_irqrestore(&priv->driver_lock, flags);
1216 }
1217
1218 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1219                           int result)
1220 {
1221         if (cmd == priv->cur_cmd)
1222                 priv->cur_cmd_retcode = result;
1223
1224         cmd->result = result;
1225         cmd->cmdwaitqwoken = 1;
1226         wake_up_interruptible(&cmd->cmdwait_q);
1227
1228         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1229                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1230         priv->cur_cmd = NULL;
1231 }
1232
1233 int lbs_set_radio_control(struct lbs_private *priv)
1234 {
1235         int ret = 0;
1236         struct cmd_ds_802_11_radio_control cmd;
1237
1238         lbs_deb_enter(LBS_DEB_CMD);
1239
1240         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1241         cmd.action = cpu_to_le16(CMD_ACT_SET);
1242
1243         switch (priv->preamble) {
1244         case CMD_TYPE_SHORT_PREAMBLE:
1245                 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1246                 break;
1247
1248         case CMD_TYPE_LONG_PREAMBLE:
1249                 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1250                 break;
1251
1252         case CMD_TYPE_AUTO_PREAMBLE:
1253         default:
1254                 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1255                 break;
1256         }
1257
1258         if (priv->radioon)
1259                 cmd.control |= cpu_to_le16(TURN_ON_RF);
1260         else
1261                 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1262
1263         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1264                     priv->preamble);
1265
1266         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1267
1268         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1269         return ret;
1270 }
1271
1272 void lbs_set_mac_control(struct lbs_private *priv)
1273 {
1274         struct cmd_ds_mac_control cmd;
1275
1276         lbs_deb_enter(LBS_DEB_CMD);
1277
1278         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1279         cmd.action = cpu_to_le16(priv->mac_control);
1280         cmd.reserved = 0;
1281
1282         lbs_cmd_async(priv, CMD_MAC_CONTROL,
1283                 &cmd.hdr, sizeof(cmd));
1284
1285         lbs_deb_leave(LBS_DEB_CMD);
1286 }
1287
1288 /**
1289  *  @brief This function prepare the command before send to firmware.
1290  *
1291  *  @param priv         A pointer to struct lbs_private structure
1292  *  @param cmd_no       command number
1293  *  @param cmd_action   command action: GET or SET
1294  *  @param wait_option  wait option: wait response or not
1295  *  @param cmd_oid      cmd oid: treated as sub command
1296  *  @param pdata_buf    A pointer to informaion buffer
1297  *  @return             0 or -1
1298  */
1299 int lbs_prepare_and_send_command(struct lbs_private *priv,
1300                           u16 cmd_no,
1301                           u16 cmd_action,
1302                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1303 {
1304         int ret = 0;
1305         struct cmd_ctrl_node *cmdnode;
1306         struct cmd_ds_command *cmdptr;
1307         unsigned long flags;
1308
1309         lbs_deb_enter(LBS_DEB_HOST);
1310
1311         if (!priv) {
1312                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1313                 ret = -1;
1314                 goto done;
1315         }
1316
1317         if (priv->surpriseremoved) {
1318                 lbs_deb_host("PREP_CMD: card removed\n");
1319                 ret = -1;
1320                 goto done;
1321         }
1322
1323         cmdnode = lbs_get_cmd_ctrl_node(priv);
1324
1325         if (cmdnode == NULL) {
1326                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1327
1328                 /* Wake up main thread to execute next command */
1329                 wake_up_interruptible(&priv->waitq);
1330                 ret = -1;
1331                 goto done;
1332         }
1333
1334         cmdnode->callback = NULL;
1335         cmdnode->callback_arg = (unsigned long)pdata_buf;
1336
1337         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1338
1339         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1340
1341         /* Set sequence number, command and INT option */
1342         priv->seqnum++;
1343         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1344
1345         cmdptr->command = cpu_to_le16(cmd_no);
1346         cmdptr->result = 0;
1347
1348         switch (cmd_no) {
1349         case CMD_802_11_PS_MODE:
1350                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1351                 break;
1352
1353         case CMD_802_11_ASSOCIATE:
1354         case CMD_802_11_REASSOCIATE:
1355                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1356                 break;
1357
1358         case CMD_802_11_DEAUTHENTICATE:
1359                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1360                 break;
1361
1362         case CMD_802_11_AD_HOC_START:
1363                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1364                 break;
1365
1366         case CMD_802_11_RESET:
1367                 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1368                 break;
1369
1370         case CMD_802_11_AUTHENTICATE:
1371                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1372                 break;
1373
1374         case CMD_802_11_SNMP_MIB:
1375                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1376                                                cmd_action, cmd_oid, pdata_buf);
1377                 break;
1378
1379         case CMD_MAC_REG_ACCESS:
1380         case CMD_BBP_REG_ACCESS:
1381         case CMD_RF_REG_ACCESS:
1382                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1383                 break;
1384
1385         case CMD_802_11_RF_TX_POWER:
1386                 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1387                                                  cmd_action, pdata_buf);
1388                 break;
1389
1390         case CMD_802_11_RATE_ADAPT_RATESET:
1391                 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1392                                                          cmdptr, cmd_action);
1393                 break;
1394
1395         case CMD_MAC_MULTICAST_ADR:
1396                 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
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_AD_HOC_JOIN:
1405                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1406                 break;
1407
1408         case CMD_802_11_RSSI:
1409                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1410                 break;
1411
1412         case CMD_802_11_AD_HOC_STOP:
1413                 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1414                 break;
1415
1416         case CMD_802_11_SET_AFC:
1417         case CMD_802_11_GET_AFC:
1418
1419                 cmdptr->command = cpu_to_le16(cmd_no);
1420                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1421                                            S_DS_GEN);
1422
1423                 memmove(&cmdptr->params.afc,
1424                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1425
1426                 ret = 0;
1427                 goto done;
1428
1429         case CMD_802_11D_DOMAIN_INFO:
1430                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1431                                                    cmd_no, cmd_action);
1432                 break;
1433
1434         case CMD_802_11_TPC_CFG:
1435                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1436                 cmdptr->size =
1437                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1438                                      S_DS_GEN);
1439
1440                 memmove(&cmdptr->params.tpccfg,
1441                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1442
1443                 ret = 0;
1444                 break;
1445         case CMD_802_11_LED_GPIO_CTRL:
1446                 {
1447                         struct mrvlietypes_ledgpio *gpio =
1448                             (struct mrvlietypes_ledgpio*)
1449                             cmdptr->params.ledgpio.data;
1450
1451                         memmove(&cmdptr->params.ledgpio,
1452                                 pdata_buf,
1453                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1454
1455                         cmdptr->command =
1456                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1457
1458 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1459                         cmdptr->size =
1460                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1461                                 + S_DS_GEN
1462                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1463                         gpio->header.len = gpio->header.len;
1464
1465                         ret = 0;
1466                         break;
1467                 }
1468
1469         case CMD_BT_ACCESS:
1470                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1471                 break;
1472
1473         case CMD_FWT_ACCESS:
1474                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1475                 break;
1476
1477         case CMD_GET_TSF:
1478                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1479                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1480                                            S_DS_GEN);
1481                 ret = 0;
1482                 break;
1483         case CMD_802_11_BEACON_CTRL:
1484                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1485                 break;
1486         default:
1487                 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1488                 ret = -1;
1489                 break;
1490         }
1491
1492         /* return error, since the command preparation failed */
1493         if (ret != 0) {
1494                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1495                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1496                 ret = -1;
1497                 goto done;
1498         }
1499
1500         cmdnode->cmdwaitqwoken = 0;
1501
1502         lbs_queue_cmd(priv, cmdnode);
1503         wake_up_interruptible(&priv->waitq);
1504
1505         if (wait_option & CMD_OPTION_WAITFORRSP) {
1506                 lbs_deb_host("PREP_CMD: wait for response\n");
1507                 might_sleep();
1508                 wait_event_interruptible(cmdnode->cmdwait_q,
1509                                          cmdnode->cmdwaitqwoken);
1510         }
1511
1512         spin_lock_irqsave(&priv->driver_lock, flags);
1513         if (priv->cur_cmd_retcode) {
1514                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1515                        priv->cur_cmd_retcode);
1516                 priv->cur_cmd_retcode = 0;
1517                 ret = -1;
1518         }
1519         spin_unlock_irqrestore(&priv->driver_lock, flags);
1520
1521 done:
1522         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1523         return ret;
1524 }
1525
1526 /**
1527  *  @brief This function allocates the command buffer and link
1528  *  it to command free queue.
1529  *
1530  *  @param priv         A pointer to struct lbs_private structure
1531  *  @return             0 or -1
1532  */
1533 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1534 {
1535         int ret = 0;
1536         u32 bufsize;
1537         u32 i;
1538         struct cmd_ctrl_node *cmdarray;
1539
1540         lbs_deb_enter(LBS_DEB_HOST);
1541
1542         /* Allocate and initialize the command array */
1543         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1544         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1545                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1546                 ret = -1;
1547                 goto done;
1548         }
1549         priv->cmd_array = cmdarray;
1550
1551         /* Allocate and initialize each command buffer in the command array */
1552         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1553                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1554                 if (!cmdarray[i].cmdbuf) {
1555                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1556                         ret = -1;
1557                         goto done;
1558                 }
1559         }
1560
1561         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1562                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1563                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1564         }
1565         ret = 0;
1566
1567 done:
1568         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1569         return ret;
1570 }
1571
1572 /**
1573  *  @brief This function frees the command buffer.
1574  *
1575  *  @param priv         A pointer to struct lbs_private structure
1576  *  @return             0 or -1
1577  */
1578 int lbs_free_cmd_buffer(struct lbs_private *priv)
1579 {
1580         struct cmd_ctrl_node *cmdarray;
1581         unsigned int i;
1582
1583         lbs_deb_enter(LBS_DEB_HOST);
1584
1585         /* need to check if cmd array is allocated or not */
1586         if (priv->cmd_array == NULL) {
1587                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1588                 goto done;
1589         }
1590
1591         cmdarray = priv->cmd_array;
1592
1593         /* Release shared memory buffers */
1594         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1595                 if (cmdarray[i].cmdbuf) {
1596                         kfree(cmdarray[i].cmdbuf);
1597                         cmdarray[i].cmdbuf = NULL;
1598                 }
1599         }
1600
1601         /* Release cmd_ctrl_node */
1602         if (priv->cmd_array) {
1603                 kfree(priv->cmd_array);
1604                 priv->cmd_array = NULL;
1605         }
1606
1607 done:
1608         lbs_deb_leave(LBS_DEB_HOST);
1609         return 0;
1610 }
1611
1612 /**
1613  *  @brief This function gets a free command node if available in
1614  *  command free queue.
1615  *
1616  *  @param priv         A pointer to struct lbs_private structure
1617  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1618  */
1619 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1620 {
1621         struct cmd_ctrl_node *tempnode;
1622         unsigned long flags;
1623
1624         lbs_deb_enter(LBS_DEB_HOST);
1625
1626         if (!priv)
1627                 return NULL;
1628
1629         spin_lock_irqsave(&priv->driver_lock, flags);
1630
1631         if (!list_empty(&priv->cmdfreeq)) {
1632                 tempnode = list_first_entry(&priv->cmdfreeq,
1633                                             struct cmd_ctrl_node, list);
1634                 list_del(&tempnode->list);
1635         } else {
1636                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1637                 tempnode = NULL;
1638         }
1639
1640         spin_unlock_irqrestore(&priv->driver_lock, flags);
1641
1642         lbs_deb_leave(LBS_DEB_HOST);
1643         return tempnode;
1644 }
1645
1646 /**
1647  *  @brief This function executes next command in command
1648  *  pending queue. It will put fimware back to PS mode
1649  *  if applicable.
1650  *
1651  *  @param priv     A pointer to struct lbs_private structure
1652  *  @return        0 or -1
1653  */
1654 int lbs_execute_next_command(struct lbs_private *priv)
1655 {
1656         struct cmd_ctrl_node *cmdnode = NULL;
1657         struct cmd_header *cmd;
1658         unsigned long flags;
1659         int ret = 0;
1660
1661         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1662          * only caller to us is lbs_thread() and we get even when a
1663          * data packet is received */
1664         lbs_deb_enter(LBS_DEB_THREAD);
1665
1666         spin_lock_irqsave(&priv->driver_lock, flags);
1667
1668         if (priv->cur_cmd) {
1669                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1670                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1671                 ret = -1;
1672                 goto done;
1673         }
1674
1675         if (!list_empty(&priv->cmdpendingq)) {
1676                 cmdnode = list_first_entry(&priv->cmdpendingq,
1677                                            struct cmd_ctrl_node, list);
1678         }
1679
1680         spin_unlock_irqrestore(&priv->driver_lock, flags);
1681
1682         if (cmdnode) {
1683                 cmd = cmdnode->cmdbuf;
1684
1685                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1686                         if ((priv->psstate == PS_STATE_SLEEP) ||
1687                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1688                                 lbs_deb_host(
1689                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1690                                        le16_to_cpu(cmd->command),
1691                                        priv->psstate);
1692                                 ret = -1;
1693                                 goto done;
1694                         }
1695                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1696                                      "0x%04x in psstate %d\n",
1697                                      le16_to_cpu(cmd->command), priv->psstate);
1698                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1699                         /*
1700                          * 1. Non-PS command:
1701                          * Queue it. set needtowakeup to TRUE if current state
1702                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1703                          * 2. PS command but not Exit_PS:
1704                          * Ignore it.
1705                          * 3. PS command Exit_PS:
1706                          * Set needtowakeup to TRUE if current state is SLEEP,
1707                          * otherwise send this command down to firmware
1708                          * immediately.
1709                          */
1710                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1711                                 /*  Prepare to send Exit PS,
1712                                  *  this non PS command will be sent later */
1713                                 if ((priv->psstate == PS_STATE_SLEEP)
1714                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1715                                     ) {
1716                                         /* w/ new scheme, it will not reach here.
1717                                            since it is blocked in main_thread. */
1718                                         priv->needtowakeup = 1;
1719                                 } else
1720                                         lbs_ps_wakeup(priv, 0);
1721
1722                                 ret = 0;
1723                                 goto done;
1724                         } else {
1725                                 /*
1726                                  * PS command. Ignore it if it is not Exit_PS.
1727                                  * otherwise send it down immediately.
1728                                  */
1729                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1730
1731                                 lbs_deb_host(
1732                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1733                                        psm->action);
1734                                 if (psm->action !=
1735                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1736                                         lbs_deb_host(
1737                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1738                                         list_del(&cmdnode->list);
1739                                         spin_lock_irqsave(&priv->driver_lock, flags);
1740                                         lbs_complete_command(priv, cmdnode, 0);
1741                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1742
1743                                         ret = 0;
1744                                         goto done;
1745                                 }
1746
1747                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1748                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1749                                         lbs_deb_host(
1750                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1751                                         list_del(&cmdnode->list);
1752                                         spin_lock_irqsave(&priv->driver_lock, flags);
1753                                         lbs_complete_command(priv, cmdnode, 0);
1754                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1755                                         priv->needtowakeup = 1;
1756
1757                                         ret = 0;
1758                                         goto done;
1759                                 }
1760
1761                                 lbs_deb_host(
1762                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1763                         }
1764                 }
1765                 list_del(&cmdnode->list);
1766                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1767                             le16_to_cpu(cmd->command));
1768                 lbs_submit_command(priv, cmdnode);
1769         } else {
1770                 /*
1771                  * check if in power save mode, if yes, put the device back
1772                  * to PS mode
1773                  */
1774                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1775                     (priv->psstate == PS_STATE_FULL_POWER) &&
1776                     ((priv->connect_status == LBS_CONNECTED) ||
1777                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1778                         if (priv->secinfo.WPAenabled ||
1779                             priv->secinfo.WPA2enabled) {
1780                                 /* check for valid WPA group keys */
1781                                 if (priv->wpa_mcast_key.len ||
1782                                     priv->wpa_unicast_key.len) {
1783                                         lbs_deb_host(
1784                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1785                                                " go back to PS_SLEEP");
1786                                         lbs_ps_sleep(priv, 0);
1787                                 }
1788                         } else {
1789                                 lbs_deb_host(
1790                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1791                                        "go back to PS_SLEEP");
1792                                 lbs_ps_sleep(priv, 0);
1793                         }
1794                 }
1795         }
1796
1797         ret = 0;
1798 done:
1799         lbs_deb_leave(LBS_DEB_THREAD);
1800         return ret;
1801 }
1802
1803 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1804 {
1805         union iwreq_data iwrq;
1806         u8 buf[50];
1807
1808         lbs_deb_enter(LBS_DEB_WEXT);
1809
1810         memset(&iwrq, 0, sizeof(union iwreq_data));
1811         memset(buf, 0, sizeof(buf));
1812
1813         snprintf(buf, sizeof(buf) - 1, "%s", str);
1814
1815         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1816
1817         /* Send Event to upper layer */
1818         lbs_deb_wext("event indication string %s\n", (char *)buf);
1819         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1820         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1821
1822         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1823
1824         lbs_deb_leave(LBS_DEB_WEXT);
1825 }
1826
1827 static void lbs_send_confirmsleep(struct lbs_private *priv)
1828 {
1829         unsigned long flags;
1830         int ret;
1831
1832         lbs_deb_enter(LBS_DEB_HOST);
1833         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1834                 sizeof(confirm_sleep));
1835
1836         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1837                 sizeof(confirm_sleep));
1838         if (ret) {
1839                 lbs_pr_alert("confirm_sleep failed\n");
1840                 goto out;
1841         }
1842
1843         spin_lock_irqsave(&priv->driver_lock, flags);
1844
1845         /* We don't get a response on the sleep-confirmation */
1846         priv->dnld_sent = DNLD_RES_RECEIVED;
1847
1848         /* If nothing to do, go back to sleep (?) */
1849         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1850                 priv->psstate = PS_STATE_SLEEP;
1851
1852         spin_unlock_irqrestore(&priv->driver_lock, flags);
1853
1854 out:
1855         lbs_deb_leave(LBS_DEB_HOST);
1856 }
1857
1858 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1859 {
1860         lbs_deb_enter(LBS_DEB_HOST);
1861
1862         /*
1863          * PS is currently supported only in Infrastructure mode
1864          * Remove this check if it is to be supported in IBSS mode also
1865          */
1866
1867         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1868                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1869
1870         lbs_deb_leave(LBS_DEB_HOST);
1871 }
1872
1873 /**
1874  *  @brief This function sends Exit_PS command to firmware.
1875  *
1876  *  @param priv         A pointer to struct lbs_private structure
1877  *  @param wait_option  wait response or not
1878  *  @return             n/a
1879  */
1880 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1881 {
1882         __le32 Localpsmode;
1883
1884         lbs_deb_enter(LBS_DEB_HOST);
1885
1886         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1887
1888         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1889                               CMD_SUBCMD_EXIT_PS,
1890                               wait_option, 0, &Localpsmode);
1891
1892         lbs_deb_leave(LBS_DEB_HOST);
1893 }
1894
1895 /**
1896  *  @brief This function checks condition and prepares to
1897  *  send sleep confirm command to firmware if ok.
1898  *
1899  *  @param priv         A pointer to struct lbs_private structure
1900  *  @param psmode       Power Saving mode
1901  *  @return             n/a
1902  */
1903 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1904 {
1905         unsigned long flags =0;
1906         int allowed = 1;
1907
1908         lbs_deb_enter(LBS_DEB_HOST);
1909
1910         spin_lock_irqsave(&priv->driver_lock, flags);
1911         if (priv->dnld_sent) {
1912                 allowed = 0;
1913                 lbs_deb_host("dnld_sent was set\n");
1914         }
1915
1916         /* In-progress command? */
1917         if (priv->cur_cmd) {
1918                 allowed = 0;
1919                 lbs_deb_host("cur_cmd was set\n");
1920         }
1921
1922         /* Pending events or command responses? */
1923         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1924                 allowed = 0;
1925                 lbs_deb_host("pending events or command responses\n");
1926         }
1927         spin_unlock_irqrestore(&priv->driver_lock, flags);
1928
1929         if (allowed) {
1930                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1931                 lbs_send_confirmsleep(priv);
1932         } else {
1933                 lbs_deb_host("sleep confirm has been delayed\n");
1934         }
1935
1936         lbs_deb_leave(LBS_DEB_HOST);
1937 }
1938
1939
1940 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1941         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1942         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1943         unsigned long callback_arg)
1944 {
1945         struct cmd_ctrl_node *cmdnode;
1946
1947         lbs_deb_enter(LBS_DEB_HOST);
1948
1949         if (priv->surpriseremoved) {
1950                 lbs_deb_host("PREP_CMD: card removed\n");
1951                 cmdnode = ERR_PTR(-ENOENT);
1952                 goto done;
1953         }
1954
1955         cmdnode = lbs_get_cmd_ctrl_node(priv);
1956         if (cmdnode == NULL) {
1957                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1958
1959                 /* Wake up main thread to execute next command */
1960                 wake_up_interruptible(&priv->waitq);
1961                 cmdnode = ERR_PTR(-ENOBUFS);
1962                 goto done;
1963         }
1964
1965         cmdnode->callback = callback;
1966         cmdnode->callback_arg = callback_arg;
1967
1968         /* Copy the incoming command to the buffer */
1969         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1970
1971         /* Set sequence number, clean result, move to buffer */
1972         priv->seqnum++;
1973         cmdnode->cmdbuf->command = cpu_to_le16(command);
1974         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
1975         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
1976         cmdnode->cmdbuf->result  = 0;
1977
1978         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1979
1980         cmdnode->cmdwaitqwoken = 0;
1981         lbs_queue_cmd(priv, cmdnode);
1982         wake_up_interruptible(&priv->waitq);
1983
1984  done:
1985         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1986         return cmdnode;
1987 }
1988
1989 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1990         struct cmd_header *in_cmd, int in_cmd_size)
1991 {
1992         lbs_deb_enter(LBS_DEB_CMD);
1993         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1994                 lbs_cmd_async_callback, 0);
1995         lbs_deb_leave(LBS_DEB_CMD);
1996 }
1997
1998 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
1999               struct cmd_header *in_cmd, int in_cmd_size,
2000               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2001               unsigned long callback_arg)
2002 {
2003         struct cmd_ctrl_node *cmdnode;
2004         unsigned long flags;
2005         int ret = 0;
2006
2007         lbs_deb_enter(LBS_DEB_HOST);
2008
2009         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2010                                   callback, callback_arg);
2011         if (IS_ERR(cmdnode)) {
2012                 ret = PTR_ERR(cmdnode);
2013                 goto done;
2014         }
2015
2016         might_sleep();
2017         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2018
2019         spin_lock_irqsave(&priv->driver_lock, flags);
2020         ret = cmdnode->result;
2021         if (ret)
2022                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2023                             command, ret);
2024
2025         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2026         spin_unlock_irqrestore(&priv->driver_lock, flags);
2027
2028 done:
2029         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2030         return ret;
2031 }
2032 EXPORT_SYMBOL_GPL(__lbs_cmd);
2033
2034