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 Set the data rate
 701  *
 702  *  @param priv         A pointer to struct lbs_private structure
 703  *  @param rate         The desired data rate, or 0 to clear a locked rate
 704  *
 705  *  @return             0 on success, error on failure
 706  */
 707 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 708 {
 709         struct cmd_ds_802_11_data_rate cmd;
 710         int ret = 0;
 711
 712         lbs_deb_enter(LBS_DEB_CMD);
 713
 714         memset(&cmd, 0, sizeof(cmd));
 715         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 716
 717         if (rate > 0) {
 718                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 719                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 720                 if (cmd.rates[0] == 0) {
 721                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 722                                     " 0x%02X\n", rate);
 723                         ret = 0;
 724                         goto out;
 725                 }
 726                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 727         } else {
 728                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 729                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 730         }
 731
 732         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 733         if (ret)
 734                 goto out;
 735
 736         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 737
 738         /* FIXME: get actual rates FW can do if this command actually returns
 739          * all data rates supported.
 740          */
 741         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 742         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 743
 744 out:
 745         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 746         return ret;
 747 }
 748
 749 /**
 750  *  @brief Get the radio channel
 751  *
 752  *  @param priv         A pointer to struct lbs_private structure
 753  *
 754  *  @return             The channel on success, error on failure
 755  */
 756 int lbs_get_channel(struct lbs_private *priv)
 757 {
 758         struct cmd_ds_802_11_rf_channel cmd;
 759         int ret = 0;
 760
 761         lbs_deb_enter(LBS_DEB_CMD);
 762
 763         memset(&cmd, 0, sizeof(cmd));
 764         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 765         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 766
 767         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 768         if (ret)
 769                 goto out;
 770
 771         ret = le16_to_cpu(cmd.channel);
 772         lbs_deb_cmd("current radio channel is %d\n", ret);
 773
 774 out:
 775         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 776         return ret;
 777 }
 778
 779 int lbs_update_channel(struct lbs_private *priv)
 780 {
 781         int ret;
 782
 783         /* the channel in f/w could be out of sync; get the current channel */
 784         lbs_deb_enter(LBS_DEB_ASSOC);
 785
 786         ret = lbs_get_channel(priv);
 787         if (ret > 0) {
 788                 priv->curbssparams.channel = ret;
 789                 ret = 0;
 790         }
 791         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 792         return ret;
 793 }
 794
 795 /**
 796  *  @brief Set the radio channel
 797  *
 798  *  @param priv         A pointer to struct lbs_private structure
 799  *  @param channel      The desired channel, or 0 to clear a locked channel
 800  *
 801  *  @return             0 on success, error on failure
 802  */
 803 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 804 {
 805         struct cmd_ds_802_11_rf_channel cmd;
 806         u8 old_channel = priv->curbssparams.channel;
 807         int ret = 0;
 808
 809         lbs_deb_enter(LBS_DEB_CMD);
 810
 811         memset(&cmd, 0, sizeof(cmd));
 812         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 813         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 814         cmd.channel = cpu_to_le16(channel);
 815
 816         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 817         if (ret)
 818                 goto out;
 819
 820         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
 821         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
 822                 priv->curbssparams.channel);
 823
 824 out:
 825         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 826         return ret;
 827 }
 828
 829 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 830                                 struct cmd_ds_command *cmd)
 831 {
 832
 833         lbs_deb_enter(LBS_DEB_CMD);
 834         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 835         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 836         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 837
 838         /* reset Beacon SNR/NF/RSSI values */
 839         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 840         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 841         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 842         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 843         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 844         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 845
 846         lbs_deb_leave(LBS_DEB_CMD);
 847         return 0;
 848 }
 849
 850 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
 851                                u8 cmd_action, void *pdata_buf)
 852 {
 853         struct lbs_offset_value *offval;
 854
 855         lbs_deb_enter(LBS_DEB_CMD);
 856
 857         offval = (struct lbs_offset_value *)pdata_buf;
 858
 859         switch (le16_to_cpu(cmdptr->command)) {
 860         case CMD_MAC_REG_ACCESS:
 861                 {
 862                         struct cmd_ds_mac_reg_access *macreg;
 863
 864                         cmdptr->size =
 865                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 866                                         + S_DS_GEN);
 867                         macreg =
 868                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 869                             macreg;
 870
 871                         macreg->action = cpu_to_le16(cmd_action);
 872                         macreg->offset = cpu_to_le16((u16) offval->offset);
 873                         macreg->value = cpu_to_le32(offval->value);
 874
 875                         break;
 876                 }
 877
 878         case CMD_BBP_REG_ACCESS:
 879                 {
 880                         struct cmd_ds_bbp_reg_access *bbpreg;
 881
 882                         cmdptr->size =
 883                             cpu_to_le16(sizeof
 884                                              (struct cmd_ds_bbp_reg_access)
 885                                              + S_DS_GEN);
 886                         bbpreg =
 887                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 888                             bbpreg;
 889
 890                         bbpreg->action = cpu_to_le16(cmd_action);
 891                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 892                         bbpreg->value = (u8) offval->value;
 893
 894                         break;
 895                 }
 896
 897         case CMD_RF_REG_ACCESS:
 898                 {
 899                         struct cmd_ds_rf_reg_access *rfreg;
 900
 901                         cmdptr->size =
 902                             cpu_to_le16(sizeof
 903                                              (struct cmd_ds_rf_reg_access) +
 904                                              S_DS_GEN);
 905                         rfreg =
 906                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 907                             rfreg;
 908
 909                         rfreg->action = cpu_to_le16(cmd_action);
 910                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 911                         rfreg->value = (u8) offval->value;
 912
 913                         break;
 914                 }
 915
 916         default:
 917                 break;
 918         }
 919
 920         lbs_deb_leave(LBS_DEB_CMD);
 921         return 0;
 922 }
 923
 924 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 925                                u16 cmd_action, void *pdata_buf)
 926 {
 927         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
 928         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 929
 930         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
 931         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
 932         cmd->result = 0;
 933         bt_access->action = cpu_to_le16(cmd_action);
 934
 935         switch (cmd_action) {
 936         case CMD_ACT_BT_ACCESS_ADD:
 937                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
 938                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
 939                 break;
 940         case CMD_ACT_BT_ACCESS_DEL:
 941                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
 942                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
 943                 break;
 944         case CMD_ACT_BT_ACCESS_LIST:
 945                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 946                 break;
 947         case CMD_ACT_BT_ACCESS_RESET:
 948                 break;
 949         case CMD_ACT_BT_ACCESS_SET_INVERT:
 950                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
 951                 break;
 952         case CMD_ACT_BT_ACCESS_GET_INVERT:
 953                 break;
 954         default:
 955                 break;
 956         }
 957         lbs_deb_leave(LBS_DEB_CMD);
 958         return 0;
 959 }
 960
 961 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
 962                                u16 cmd_action, void *pdata_buf)
 963 {
 964         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
 965         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 966
 967         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
 968         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
 969         cmd->result = 0;
 970
 971         if (pdata_buf)
 972                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
 973         else
 974                 memset(fwt_access, 0, sizeof(*fwt_access));
 975
 976         fwt_access->action = cpu_to_le16(cmd_action);
 977
 978         lbs_deb_leave(LBS_DEB_CMD);
 979         return 0;
 980 }
 981
 982 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
 983                     struct cmd_ds_mesh_access *cmd)
 984 {
 985         int ret;
 986
 987         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 988
 989         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
 990         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
 991         cmd->hdr.result = 0;
 992
 993         cmd->action = cpu_to_le16(cmd_action);
 994
 995         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
 996
 997         lbs_deb_leave(LBS_DEB_CMD);
 998         return ret;
 999 }
1000
1001 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1002 {
1003         struct cmd_ds_mesh_config cmd;
1004
1005         memset(&cmd, 0, sizeof(cmd));
1006         cmd.action = cpu_to_le16(enable);
1007         cmd.channel = cpu_to_le16(chan);
1008         cmd.type = cpu_to_le16(priv->mesh_tlv);
1009         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1010
1011         if (enable) {
1012                 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1013                 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1014         }
1015         lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1016                     enable, priv->mesh_tlv, chan,
1017                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1018         return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1019 }
1020
1021 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1022                                 struct cmd_ds_command *cmd,
1023                                 u16 cmd_action)
1024 {
1025         struct cmd_ds_802_11_beacon_control
1026                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1027
1028         lbs_deb_enter(LBS_DEB_CMD);
1029         cmd->size =
1030             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1031                              + S_DS_GEN);
1032         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1033
1034         bcn_ctrl->action = cpu_to_le16(cmd_action);
1035         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1036         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1037
1038         lbs_deb_leave(LBS_DEB_CMD);
1039         return 0;
1040 }
1041
1042 static void lbs_queue_cmd(struct lbs_private *priv,
1043                           struct cmd_ctrl_node *cmdnode)
1044 {
1045         unsigned long flags;
1046         int addtail = 1;
1047
1048         lbs_deb_enter(LBS_DEB_HOST);
1049
1050         if (!cmdnode) {
1051                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1052                 goto done;
1053         }
1054         if (!cmdnode->cmdbuf->size) {
1055                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1056                 goto done;
1057         }
1058         cmdnode->result = 0;
1059
1060         /* Exit_PS command needs to be queued in the header always. */
1061         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1062                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1063
1064                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1065                         if (priv->psstate != PS_STATE_FULL_POWER)
1066                                 addtail = 0;
1067                 }
1068         }
1069
1070         spin_lock_irqsave(&priv->driver_lock, flags);
1071
1072         if (addtail)
1073                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1074         else
1075                 list_add(&cmdnode->list, &priv->cmdpendingq);
1076
1077         spin_unlock_irqrestore(&priv->driver_lock, flags);
1078
1079         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1080                      le16_to_cpu(cmdnode->cmdbuf->command));
1081
1082 done:
1083         lbs_deb_leave(LBS_DEB_HOST);
1084 }
1085
1086 static void lbs_submit_command(struct lbs_private *priv,
1087                                struct cmd_ctrl_node *cmdnode)
1088 {
1089         unsigned long flags;
1090         struct cmd_header *cmd;
1091         uint16_t cmdsize;
1092         uint16_t command;
1093         int timeo = 5 * HZ;
1094         int ret;
1095
1096         lbs_deb_enter(LBS_DEB_HOST);
1097
1098         cmd = cmdnode->cmdbuf;
1099
1100         spin_lock_irqsave(&priv->driver_lock, flags);
1101         priv->cur_cmd = cmdnode;
1102         priv->cur_cmd_retcode = 0;
1103         spin_unlock_irqrestore(&priv->driver_lock, flags);
1104
1105         cmdsize = le16_to_cpu(cmd->size);
1106         command = le16_to_cpu(cmd->command);
1107
1108         /* These commands take longer */
1109         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1110             command == CMD_802_11_AUTHENTICATE)
1111                 timeo = 10 * HZ;
1112
1113         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1114                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1115         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1116
1117         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1118
1119         if (ret) {
1120                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1121                 /* Let the timer kick in and retry, and potentially reset
1122                    the whole thing if the condition persists */
1123                 timeo = HZ;
1124         }
1125
1126         /* Setup the timer after transmit command */
1127         mod_timer(&priv->command_timer, jiffies + timeo);
1128
1129         lbs_deb_leave(LBS_DEB_HOST);
1130 }
1131
1132 /**
1133  *  This function inserts command node to cmdfreeq
1134  *  after cleans it. Requires priv->driver_lock held.
1135  */
1136 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1137                                          struct cmd_ctrl_node *cmdnode)
1138 {
1139         lbs_deb_enter(LBS_DEB_HOST);
1140
1141         if (!cmdnode)
1142                 goto out;
1143
1144         cmdnode->callback = NULL;
1145         cmdnode->callback_arg = 0;
1146
1147         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1148
1149         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1150  out:
1151         lbs_deb_leave(LBS_DEB_HOST);
1152 }
1153
1154 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1155         struct cmd_ctrl_node *ptempcmd)
1156 {
1157         unsigned long flags;
1158
1159         spin_lock_irqsave(&priv->driver_lock, flags);
1160         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1161         spin_unlock_irqrestore(&priv->driver_lock, flags);
1162 }
1163
1164 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1165                           int result)
1166 {
1167         if (cmd == priv->cur_cmd)
1168                 priv->cur_cmd_retcode = result;
1169
1170         cmd->result = result;
1171         cmd->cmdwaitqwoken = 1;
1172         wake_up_interruptible(&cmd->cmdwait_q);
1173
1174         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1175                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1176         priv->cur_cmd = NULL;
1177 }
1178
1179 int lbs_set_radio_control(struct lbs_private *priv)
1180 {
1181         int ret = 0;
1182         struct cmd_ds_802_11_radio_control cmd;
1183
1184         lbs_deb_enter(LBS_DEB_CMD);
1185
1186         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1187         cmd.action = cpu_to_le16(CMD_ACT_SET);
1188
1189         switch (priv->preamble) {
1190         case CMD_TYPE_SHORT_PREAMBLE:
1191                 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1192                 break;
1193
1194         case CMD_TYPE_LONG_PREAMBLE:
1195                 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1196                 break;
1197
1198         case CMD_TYPE_AUTO_PREAMBLE:
1199         default:
1200                 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1201                 break;
1202         }
1203
1204         if (priv->radioon)
1205                 cmd.control |= cpu_to_le16(TURN_ON_RF);
1206         else
1207                 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1208
1209         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1210                     priv->preamble);
1211
1212         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1213
1214         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1215         return ret;
1216 }
1217
1218 void lbs_set_mac_control(struct lbs_private *priv)
1219 {
1220         struct cmd_ds_mac_control cmd;
1221
1222         lbs_deb_enter(LBS_DEB_CMD);
1223
1224         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1225         cmd.action = cpu_to_le16(priv->mac_control);
1226         cmd.reserved = 0;
1227
1228         lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1229
1230         lbs_deb_leave(LBS_DEB_CMD);
1231 }
1232
1233 /**
1234  *  @brief This function prepare the command before send to firmware.
1235  *
1236  *  @param priv         A pointer to struct lbs_private structure
1237  *  @param cmd_no       command number
1238  *  @param cmd_action   command action: GET or SET
1239  *  @param wait_option  wait option: wait response or not
1240  *  @param cmd_oid      cmd oid: treated as sub command
1241  *  @param pdata_buf    A pointer to informaion buffer
1242  *  @return             0 or -1
1243  */
1244 int lbs_prepare_and_send_command(struct lbs_private *priv,
1245                           u16 cmd_no,
1246                           u16 cmd_action,
1247                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1248 {
1249         int ret = 0;
1250         struct cmd_ctrl_node *cmdnode;
1251         struct cmd_ds_command *cmdptr;
1252         unsigned long flags;
1253
1254         lbs_deb_enter(LBS_DEB_HOST);
1255
1256         if (!priv) {
1257                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1258                 ret = -1;
1259                 goto done;
1260         }
1261
1262         if (priv->surpriseremoved) {
1263                 lbs_deb_host("PREP_CMD: card removed\n");
1264                 ret = -1;
1265                 goto done;
1266         }
1267
1268         cmdnode = lbs_get_cmd_ctrl_node(priv);
1269
1270         if (cmdnode == NULL) {
1271                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1272
1273                 /* Wake up main thread to execute next command */
1274                 wake_up_interruptible(&priv->waitq);
1275                 ret = -1;
1276                 goto done;
1277         }
1278
1279         cmdnode->callback = NULL;
1280         cmdnode->callback_arg = (unsigned long)pdata_buf;
1281
1282         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1283
1284         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1285
1286         /* Set sequence number, command and INT option */
1287         priv->seqnum++;
1288         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1289
1290         cmdptr->command = cpu_to_le16(cmd_no);
1291         cmdptr->result = 0;
1292
1293         switch (cmd_no) {
1294         case CMD_802_11_PS_MODE:
1295                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1296                 break;
1297
1298         case CMD_802_11_ASSOCIATE:
1299         case CMD_802_11_REASSOCIATE:
1300                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1301                 break;
1302
1303         case CMD_802_11_DEAUTHENTICATE:
1304                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1305                 break;
1306
1307         case CMD_802_11_AD_HOC_START:
1308                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1309                 break;
1310
1311         case CMD_802_11_RESET:
1312                 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1313                 break;
1314
1315         case CMD_802_11_AUTHENTICATE:
1316                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1317                 break;
1318
1319         case CMD_802_11_SNMP_MIB:
1320                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1321                                                cmd_action, cmd_oid, pdata_buf);
1322                 break;
1323
1324         case CMD_MAC_REG_ACCESS:
1325         case CMD_BBP_REG_ACCESS:
1326         case CMD_RF_REG_ACCESS:
1327                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1328                 break;
1329
1330         case CMD_802_11_RF_TX_POWER:
1331                 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1332                                                  cmd_action, pdata_buf);
1333                 break;
1334
1335         case CMD_802_11_RATE_ADAPT_RATESET:
1336                 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1337                                                          cmdptr, cmd_action);
1338                 break;
1339
1340         case CMD_802_11_MONITOR_MODE:
1341                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1342                                           cmd_action, pdata_buf);
1343                 break;
1344
1345         case CMD_802_11_AD_HOC_JOIN:
1346                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1347                 break;
1348
1349         case CMD_802_11_RSSI:
1350                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1351                 break;
1352
1353         case CMD_802_11_AD_HOC_STOP:
1354                 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1355                 break;
1356
1357         case CMD_802_11_SET_AFC:
1358         case CMD_802_11_GET_AFC:
1359
1360                 cmdptr->command = cpu_to_le16(cmd_no);
1361                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1362                                            S_DS_GEN);
1363
1364                 memmove(&cmdptr->params.afc,
1365                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1366
1367                 ret = 0;
1368                 goto done;
1369
1370         case CMD_802_11D_DOMAIN_INFO:
1371                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1372                                                    cmd_no, cmd_action);
1373                 break;
1374
1375         case CMD_802_11_TPC_CFG:
1376                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1377                 cmdptr->size =
1378                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1379                                      S_DS_GEN);
1380
1381                 memmove(&cmdptr->params.tpccfg,
1382                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1383
1384                 ret = 0;
1385                 break;
1386         case CMD_802_11_LED_GPIO_CTRL:
1387                 {
1388                         struct mrvlietypes_ledgpio *gpio =
1389                             (struct mrvlietypes_ledgpio*)
1390                             cmdptr->params.ledgpio.data;
1391
1392                         memmove(&cmdptr->params.ledgpio,
1393                                 pdata_buf,
1394                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1395
1396                         cmdptr->command =
1397                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1398
1399 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1400                         cmdptr->size =
1401                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1402                                 + S_DS_GEN
1403                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1404                         gpio->header.len = gpio->header.len;
1405
1406                         ret = 0;
1407                         break;
1408                 }
1409
1410         case CMD_BT_ACCESS:
1411                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1412                 break;
1413
1414         case CMD_FWT_ACCESS:
1415                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1416                 break;
1417
1418         case CMD_GET_TSF:
1419                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1420                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1421                                            S_DS_GEN);
1422                 ret = 0;
1423                 break;
1424         case CMD_802_11_BEACON_CTRL:
1425                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1426                 break;
1427         default:
1428                 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1429                 ret = -1;
1430                 break;
1431         }
1432
1433         /* return error, since the command preparation failed */
1434         if (ret != 0) {
1435                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1436                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1437                 ret = -1;
1438                 goto done;
1439         }
1440
1441         cmdnode->cmdwaitqwoken = 0;
1442
1443         lbs_queue_cmd(priv, cmdnode);
1444         wake_up_interruptible(&priv->waitq);
1445
1446         if (wait_option & CMD_OPTION_WAITFORRSP) {
1447                 lbs_deb_host("PREP_CMD: wait for response\n");
1448                 might_sleep();
1449                 wait_event_interruptible(cmdnode->cmdwait_q,
1450                                          cmdnode->cmdwaitqwoken);
1451         }
1452
1453         spin_lock_irqsave(&priv->driver_lock, flags);
1454         if (priv->cur_cmd_retcode) {
1455                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1456                        priv->cur_cmd_retcode);
1457                 priv->cur_cmd_retcode = 0;
1458                 ret = -1;
1459         }
1460         spin_unlock_irqrestore(&priv->driver_lock, flags);
1461
1462 done:
1463         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1464         return ret;
1465 }
1466
1467 /**
1468  *  @brief This function allocates the command buffer and link
1469  *  it to command free queue.
1470  *
1471  *  @param priv         A pointer to struct lbs_private structure
1472  *  @return             0 or -1
1473  */
1474 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1475 {
1476         int ret = 0;
1477         u32 bufsize;
1478         u32 i;
1479         struct cmd_ctrl_node *cmdarray;
1480
1481         lbs_deb_enter(LBS_DEB_HOST);
1482
1483         /* Allocate and initialize the command array */
1484         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1485         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1486                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1487                 ret = -1;
1488                 goto done;
1489         }
1490         priv->cmd_array = cmdarray;
1491
1492         /* Allocate and initialize each command buffer in the command array */
1493         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1494                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1495                 if (!cmdarray[i].cmdbuf) {
1496                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1497                         ret = -1;
1498                         goto done;
1499                 }
1500         }
1501
1502         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1503                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1504                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1505         }
1506         ret = 0;
1507
1508 done:
1509         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1510         return ret;
1511 }
1512
1513 /**
1514  *  @brief This function frees the command buffer.
1515  *
1516  *  @param priv         A pointer to struct lbs_private structure
1517  *  @return             0 or -1
1518  */
1519 int lbs_free_cmd_buffer(struct lbs_private *priv)
1520 {
1521         struct cmd_ctrl_node *cmdarray;
1522         unsigned int i;
1523
1524         lbs_deb_enter(LBS_DEB_HOST);
1525
1526         /* need to check if cmd array is allocated or not */
1527         if (priv->cmd_array == NULL) {
1528                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1529                 goto done;
1530         }
1531
1532         cmdarray = priv->cmd_array;
1533
1534         /* Release shared memory buffers */
1535         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1536                 if (cmdarray[i].cmdbuf) {
1537                         kfree(cmdarray[i].cmdbuf);
1538                         cmdarray[i].cmdbuf = NULL;
1539                 }
1540         }
1541
1542         /* Release cmd_ctrl_node */
1543         if (priv->cmd_array) {
1544                 kfree(priv->cmd_array);
1545                 priv->cmd_array = NULL;
1546         }
1547
1548 done:
1549         lbs_deb_leave(LBS_DEB_HOST);
1550         return 0;
1551 }
1552
1553 /**
1554  *  @brief This function gets a free command node if available in
1555  *  command free queue.
1556  *
1557  *  @param priv         A pointer to struct lbs_private structure
1558  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1559  */
1560 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1561 {
1562         struct cmd_ctrl_node *tempnode;
1563         unsigned long flags;
1564
1565         lbs_deb_enter(LBS_DEB_HOST);
1566
1567         if (!priv)
1568                 return NULL;
1569
1570         spin_lock_irqsave(&priv->driver_lock, flags);
1571
1572         if (!list_empty(&priv->cmdfreeq)) {
1573                 tempnode = list_first_entry(&priv->cmdfreeq,
1574                                             struct cmd_ctrl_node, list);
1575                 list_del(&tempnode->list);
1576         } else {
1577                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1578                 tempnode = NULL;
1579         }
1580
1581         spin_unlock_irqrestore(&priv->driver_lock, flags);
1582
1583         lbs_deb_leave(LBS_DEB_HOST);
1584         return tempnode;
1585 }
1586
1587 /**
1588  *  @brief This function executes next command in command
1589  *  pending queue. It will put fimware back to PS mode
1590  *  if applicable.
1591  *
1592  *  @param priv     A pointer to struct lbs_private structure
1593  *  @return        0 or -1
1594  */
1595 int lbs_execute_next_command(struct lbs_private *priv)
1596 {
1597         struct cmd_ctrl_node *cmdnode = NULL;
1598         struct cmd_header *cmd;
1599         unsigned long flags;
1600         int ret = 0;
1601
1602         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1603          * only caller to us is lbs_thread() and we get even when a
1604          * data packet is received */
1605         lbs_deb_enter(LBS_DEB_THREAD);
1606
1607         spin_lock_irqsave(&priv->driver_lock, flags);
1608
1609         if (priv->cur_cmd) {
1610                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1611                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1612                 ret = -1;
1613                 goto done;
1614         }
1615
1616         if (!list_empty(&priv->cmdpendingq)) {
1617                 cmdnode = list_first_entry(&priv->cmdpendingq,
1618                                            struct cmd_ctrl_node, list);
1619         }
1620
1621         spin_unlock_irqrestore(&priv->driver_lock, flags);
1622
1623         if (cmdnode) {
1624                 cmd = cmdnode->cmdbuf;
1625
1626                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1627                         if ((priv->psstate == PS_STATE_SLEEP) ||
1628                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1629                                 lbs_deb_host(
1630                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1631                                        le16_to_cpu(cmd->command),
1632                                        priv->psstate);
1633                                 ret = -1;
1634                                 goto done;
1635                         }
1636                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1637                                      "0x%04x in psstate %d\n",
1638                                      le16_to_cpu(cmd->command), priv->psstate);
1639                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1640                         /*
1641                          * 1. Non-PS command:
1642                          * Queue it. set needtowakeup to TRUE if current state
1643                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1644                          * 2. PS command but not Exit_PS:
1645                          * Ignore it.
1646                          * 3. PS command Exit_PS:
1647                          * Set needtowakeup to TRUE if current state is SLEEP,
1648                          * otherwise send this command down to firmware
1649                          * immediately.
1650                          */
1651                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1652                                 /*  Prepare to send Exit PS,
1653                                  *  this non PS command will be sent later */
1654                                 if ((priv->psstate == PS_STATE_SLEEP)
1655                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1656                                     ) {
1657                                         /* w/ new scheme, it will not reach here.
1658                                            since it is blocked in main_thread. */
1659                                         priv->needtowakeup = 1;
1660                                 } else
1661                                         lbs_ps_wakeup(priv, 0);
1662
1663                                 ret = 0;
1664                                 goto done;
1665                         } else {
1666                                 /*
1667                                  * PS command. Ignore it if it is not Exit_PS.
1668                                  * otherwise send it down immediately.
1669                                  */
1670                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1671
1672                                 lbs_deb_host(
1673                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1674                                        psm->action);
1675                                 if (psm->action !=
1676                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1677                                         lbs_deb_host(
1678                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1679                                         list_del(&cmdnode->list);
1680                                         spin_lock_irqsave(&priv->driver_lock, flags);
1681                                         lbs_complete_command(priv, cmdnode, 0);
1682                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1683
1684                                         ret = 0;
1685                                         goto done;
1686                                 }
1687
1688                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1689                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1690                                         lbs_deb_host(
1691                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1692                                         list_del(&cmdnode->list);
1693                                         spin_lock_irqsave(&priv->driver_lock, flags);
1694                                         lbs_complete_command(priv, cmdnode, 0);
1695                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1696                                         priv->needtowakeup = 1;
1697
1698                                         ret = 0;
1699                                         goto done;
1700                                 }
1701
1702                                 lbs_deb_host(
1703                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1704                         }
1705                 }
1706                 list_del(&cmdnode->list);
1707                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1708                             le16_to_cpu(cmd->command));
1709                 lbs_submit_command(priv, cmdnode);
1710         } else {
1711                 /*
1712                  * check if in power save mode, if yes, put the device back
1713                  * to PS mode
1714                  */
1715                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1716                     (priv->psstate == PS_STATE_FULL_POWER) &&
1717                     ((priv->connect_status == LBS_CONNECTED) ||
1718                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1719                         if (priv->secinfo.WPAenabled ||
1720                             priv->secinfo.WPA2enabled) {
1721                                 /* check for valid WPA group keys */
1722                                 if (priv->wpa_mcast_key.len ||
1723                                     priv->wpa_unicast_key.len) {
1724                                         lbs_deb_host(
1725                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1726                                                " go back to PS_SLEEP");
1727                                         lbs_ps_sleep(priv, 0);
1728                                 }
1729                         } else {
1730                                 lbs_deb_host(
1731                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1732                                        "go back to PS_SLEEP");
1733                                 lbs_ps_sleep(priv, 0);
1734                         }
1735                 }
1736         }
1737
1738         ret = 0;
1739 done:
1740         lbs_deb_leave(LBS_DEB_THREAD);
1741         return ret;
1742 }
1743
1744 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1745 {
1746         union iwreq_data iwrq;
1747         u8 buf[50];
1748
1749         lbs_deb_enter(LBS_DEB_WEXT);
1750
1751         memset(&iwrq, 0, sizeof(union iwreq_data));
1752         memset(buf, 0, sizeof(buf));
1753
1754         snprintf(buf, sizeof(buf) - 1, "%s", str);
1755
1756         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1757
1758         /* Send Event to upper layer */
1759         lbs_deb_wext("event indication string %s\n", (char *)buf);
1760         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1761         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1762
1763         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1764
1765         lbs_deb_leave(LBS_DEB_WEXT);
1766 }
1767
1768 static void lbs_send_confirmsleep(struct lbs_private *priv)
1769 {
1770         unsigned long flags;
1771         int ret;
1772
1773         lbs_deb_enter(LBS_DEB_HOST);
1774         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1775                 sizeof(confirm_sleep));
1776
1777         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1778                 sizeof(confirm_sleep));
1779         if (ret) {
1780                 lbs_pr_alert("confirm_sleep failed\n");
1781                 goto out;
1782         }
1783
1784         spin_lock_irqsave(&priv->driver_lock, flags);
1785
1786         /* If nothing to do, go back to sleep (?) */
1787         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1788                 priv->psstate = PS_STATE_SLEEP;
1789
1790         spin_unlock_irqrestore(&priv->driver_lock, flags);
1791
1792 out:
1793         lbs_deb_leave(LBS_DEB_HOST);
1794 }
1795
1796 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1797 {
1798         lbs_deb_enter(LBS_DEB_HOST);
1799
1800         /*
1801          * PS is currently supported only in Infrastructure mode
1802          * Remove this check if it is to be supported in IBSS mode also
1803          */
1804
1805         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1806                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1807
1808         lbs_deb_leave(LBS_DEB_HOST);
1809 }
1810
1811 /**
1812  *  @brief This function sends Exit_PS command to firmware.
1813  *
1814  *  @param priv         A pointer to struct lbs_private structure
1815  *  @param wait_option  wait response or not
1816  *  @return             n/a
1817  */
1818 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1819 {
1820         __le32 Localpsmode;
1821
1822         lbs_deb_enter(LBS_DEB_HOST);
1823
1824         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1825
1826         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1827                               CMD_SUBCMD_EXIT_PS,
1828                               wait_option, 0, &Localpsmode);
1829
1830         lbs_deb_leave(LBS_DEB_HOST);
1831 }
1832
1833 /**
1834  *  @brief This function checks condition and prepares to
1835  *  send sleep confirm command to firmware if ok.
1836  *
1837  *  @param priv         A pointer to struct lbs_private structure
1838  *  @param psmode       Power Saving mode
1839  *  @return             n/a
1840  */
1841 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1842 {
1843         unsigned long flags =0;
1844         int allowed = 1;
1845
1846         lbs_deb_enter(LBS_DEB_HOST);
1847
1848         if (priv->dnld_sent) {
1849                 allowed = 0;
1850                 lbs_deb_host("dnld_sent was set\n");
1851         }
1852
1853         spin_lock_irqsave(&priv->driver_lock, flags);
1854         /* In-progress command? */
1855         if (priv->cur_cmd) {
1856                 allowed = 0;
1857                 lbs_deb_host("cur_cmd was set\n");
1858         }
1859
1860         /* Pending events or command responses? */
1861         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1862                 allowed = 0;
1863                 lbs_deb_host("pending events or command responses\n");
1864         }
1865         spin_unlock_irqrestore(&priv->driver_lock, flags);
1866
1867         if (allowed) {
1868                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1869                 lbs_send_confirmsleep(priv);
1870         } else {
1871                 lbs_deb_host("sleep confirm has been delayed\n");
1872         }
1873
1874         lbs_deb_leave(LBS_DEB_HOST);
1875 }
1876
1877
1878 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1879         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1880         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1881         unsigned long callback_arg)
1882 {
1883         struct cmd_ctrl_node *cmdnode;
1884
1885         lbs_deb_enter(LBS_DEB_HOST);
1886
1887         if (priv->surpriseremoved) {
1888                 lbs_deb_host("PREP_CMD: card removed\n");
1889                 cmdnode = ERR_PTR(-ENOENT);
1890                 goto done;
1891         }
1892
1893         cmdnode = lbs_get_cmd_ctrl_node(priv);
1894         if (cmdnode == NULL) {
1895                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1896
1897                 /* Wake up main thread to execute next command */
1898                 wake_up_interruptible(&priv->waitq);
1899                 cmdnode = ERR_PTR(-ENOBUFS);
1900                 goto done;
1901         }
1902
1903         cmdnode->callback = callback;
1904         cmdnode->callback_arg = callback_arg;
1905
1906         /* Copy the incoming command to the buffer */
1907         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1908
1909         /* Set sequence number, clean result, move to buffer */
1910         priv->seqnum++;
1911         cmdnode->cmdbuf->command = cpu_to_le16(command);
1912         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
1913         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
1914         cmdnode->cmdbuf->result  = 0;
1915
1916         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1917
1918         cmdnode->cmdwaitqwoken = 0;
1919         lbs_queue_cmd(priv, cmdnode);
1920         wake_up_interruptible(&priv->waitq);
1921
1922  done:
1923         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1924         return cmdnode;
1925 }
1926
1927 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1928         struct cmd_header *in_cmd, int in_cmd_size)
1929 {
1930         lbs_deb_enter(LBS_DEB_CMD);
1931         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1932                 lbs_cmd_async_callback, 0);
1933         lbs_deb_leave(LBS_DEB_CMD);
1934 }
1935
1936 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
1937               struct cmd_header *in_cmd, int in_cmd_size,
1938               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1939               unsigned long callback_arg)
1940 {
1941         struct cmd_ctrl_node *cmdnode;
1942         unsigned long flags;
1943         int ret = 0;
1944
1945         lbs_deb_enter(LBS_DEB_HOST);
1946
1947         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1948                                   callback, callback_arg);
1949         if (IS_ERR(cmdnode)) {
1950                 ret = PTR_ERR(cmdnode);
1951                 goto done;
1952         }
1953
1954         might_sleep();
1955         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
1956
1957         spin_lock_irqsave(&priv->driver_lock, flags);
1958         ret = cmdnode->result;
1959         if (ret)
1960                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
1961                             command, ret);
1962
1963         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
1964         spin_unlock_irqrestore(&priv->driver_lock, flags);
1965
1966 done:
1967         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1968         return ret;
1969 }
1970 EXPORT_SYMBOL_GPL(__lbs_cmd);
1971
1972