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 "host.h"
   8 #include "hostcmd.h"
   9 #include "decl.h"
  10 #include "defs.h"
  11 #include "dev.h"
  12 #include "join.h"
  13 #include "wext.h"
  14 #include "cmd.h"
  15
  16 static void cleanup_cmdnode(struct cmd_ctrl_node *ptempnode);
  17 struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
  18 void lbs_set_cmd_ctrl_node(struct lbs_private *priv,
  19                     struct cmd_ctrl_node *ptempnode,
  20                     u16 wait_option, void *pdata_buf);
  21
  22
  23 /**
  24  *  @brief Checks whether a command is allowed in Power Save mode
  25  *
  26  *  @param command the command ID
  27  *  @return        1 if allowed, 0 if not allowed
  28  */
  29 static u8 is_command_allowed_in_ps(u16 cmd)
  30 {
  31         switch (cmd) {
  32         case CMD_802_11_RSSI:
  33                 return 1;
  34         default:
  35                 break;
  36         }
  37         return 0;
  38 }
  39
  40 /**
  41  *  @brief Updates the hardware details like MAC address and regulatory region
  42  *
  43  *  @param priv         A pointer to struct lbs_private structure
  44  *
  45  *  @return             0 on success, error on failure
  46  */
  47 int lbs_update_hw_spec(struct lbs_private *priv)
  48 {
  49         struct cmd_ds_get_hw_spec cmd;
  50         int ret = -1;
  51         u32 i;
  52         DECLARE_MAC_BUF(mac);
  53
  54         lbs_deb_enter(LBS_DEB_CMD);
  55
  56         memset(&cmd, 0, sizeof(cmd));
  57         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
  58         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
  59         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, cmd);
  60         if (ret)
  61                 goto out;
  62
  63         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
  64         memcpy(priv->fwreleasenumber, cmd.fwreleasenumber, 4);
  65
  66         lbs_deb_cmd("GET_HW_SPEC: firmware release %u.%u.%up%u\n",
  67                     priv->fwreleasenumber[2], priv->fwreleasenumber[1],
  68                     priv->fwreleasenumber[0], priv->fwreleasenumber[3]);
  69         lbs_deb_cmd("GET_HW_SPEC: MAC addr %s\n",
  70                     print_mac(mac, cmd.permanentaddr));
  71         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
  72                     cmd.hwifversion, cmd.version);
  73
  74         /* Clamp region code to 8-bit since FW spec indicates that it should
  75          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
  76          * returns non-zero high 8 bits here.
  77          */
  78         priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
  79
  80         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
  81                 /* use the region code to search for the index */
  82                 if (priv->regioncode == lbs_region_code_to_index[i])
  83                         break;
  84         }
  85
  86         /* if it's unidentified region code, use the default (USA) */
  87         if (i >= MRVDRV_MAX_REGION_CODE) {
  88                 priv->regioncode = 0x10;
  89                 lbs_pr_info("unidentified region code; using the default (USA)\n");
  90         }
  91
  92         if (priv->current_addr[0] == 0xff)
  93                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
  94
  95         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
  96         if (priv->mesh_dev)
  97                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
  98
  99         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
 100                 ret = -1;
 101                 goto out;
 102         }
 103
 104         if (lbs_set_universaltable(priv, 0)) {
 105                 ret = -1;
 106                 goto out;
 107         }
 108
 109 out:
 110         lbs_deb_leave(LBS_DEB_CMD);
 111         return ret;
 112 }
 113
 114 static int lbs_cmd_802_11_ps_mode(struct lbs_private *priv,
 115                                    struct cmd_ds_command *cmd,
 116                                    u16 cmd_action)
 117 {
 118         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
 119
 120         lbs_deb_enter(LBS_DEB_CMD);
 121
 122         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
 123         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
 124                                 S_DS_GEN);
 125         psm->action = cpu_to_le16(cmd_action);
 126         psm->multipledtim = 0;
 127         switch (cmd_action) {
 128         case CMD_SUBCMD_ENTER_PS:
 129                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
 130
 131                 psm->locallisteninterval = 0;
 132                 psm->nullpktinterval = 0;
 133                 psm->multipledtim =
 134                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
 135                 break;
 136
 137         case CMD_SUBCMD_EXIT_PS:
 138                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
 139                 break;
 140
 141         case CMD_SUBCMD_SLEEP_CONFIRMED:
 142                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
 143                 break;
 144
 145         default:
 146                 break;
 147         }
 148
 149         lbs_deb_leave(LBS_DEB_CMD);
 150         return 0;
 151 }
 152
 153 static int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
 154                                               struct cmd_ds_command *cmd,
 155                                               u16 cmd_action, void *pdata_buf)
 156 {
 157         u16 *timeout = pdata_buf;
 158
 159         lbs_deb_enter(LBS_DEB_CMD);
 160
 161         cmd->command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
 162         cmd->size =
 163             cpu_to_le16(sizeof(struct cmd_ds_802_11_inactivity_timeout)
 164                              + S_DS_GEN);
 165
 166         cmd->params.inactivity_timeout.action = cpu_to_le16(cmd_action);
 167
 168         if (cmd_action)
 169                 cmd->params.inactivity_timeout.timeout = cpu_to_le16(*timeout);
 170         else
 171                 cmd->params.inactivity_timeout.timeout = 0;
 172
 173         lbs_deb_leave(LBS_DEB_CMD);
 174         return 0;
 175 }
 176
 177 static int lbs_cmd_802_11_sleep_params(struct lbs_private *priv,
 178                                         struct cmd_ds_command *cmd,
 179                                         u16 cmd_action)
 180 {
 181         struct cmd_ds_802_11_sleep_params *sp = &cmd->params.sleep_params;
 182
 183         lbs_deb_enter(LBS_DEB_CMD);
 184
 185         cmd->size = cpu_to_le16((sizeof(struct cmd_ds_802_11_sleep_params)) +
 186                                 S_DS_GEN);
 187         cmd->command = cpu_to_le16(CMD_802_11_SLEEP_PARAMS);
 188
 189         if (cmd_action == CMD_ACT_GET) {
 190                 memset(&priv->sp, 0, sizeof(struct sleep_params));
 191                 memset(sp, 0, sizeof(struct cmd_ds_802_11_sleep_params));
 192                 sp->action = cpu_to_le16(cmd_action);
 193         } else if (cmd_action == CMD_ACT_SET) {
 194                 sp->action = cpu_to_le16(cmd_action);
 195                 sp->error = cpu_to_le16(priv->sp.sp_error);
 196                 sp->offset = cpu_to_le16(priv->sp.sp_offset);
 197                 sp->stabletime = cpu_to_le16(priv->sp.sp_stabletime);
 198                 sp->calcontrol = (u8) priv->sp.sp_calcontrol;
 199                 sp->externalsleepclk = (u8) priv->sp.sp_extsleepclk;
 200                 sp->reserved = cpu_to_le16(priv->sp.sp_reserved);
 201         }
 202
 203         lbs_deb_leave(LBS_DEB_CMD);
 204         return 0;
 205 }
 206
 207 static int lbs_cmd_802_11_set_wep(struct lbs_private *priv,
 208                                    struct cmd_ds_command *cmd,
 209                                    u32 cmd_act,
 210                                    void * pdata_buf)
 211 {
 212         struct cmd_ds_802_11_set_wep *wep = &cmd->params.wep;
 213         int ret = 0;
 214         struct assoc_request * assoc_req = pdata_buf;
 215
 216         lbs_deb_enter(LBS_DEB_CMD);
 217
 218         cmd->command = cpu_to_le16(CMD_802_11_SET_WEP);
 219         cmd->size = cpu_to_le16(sizeof(*wep) + S_DS_GEN);
 220
 221         if (cmd_act == CMD_ACT_ADD) {
 222                 int i;
 223
 224                 if (!assoc_req) {
 225                         lbs_deb_cmd("Invalid association request!");
 226                         ret = -1;
 227                         goto done;
 228                 }
 229
 230                 wep->action = cpu_to_le16(CMD_ACT_ADD);
 231
 232                 /* default tx key index */
 233                 wep->keyindex = cpu_to_le16((u16)(assoc_req->wep_tx_keyidx &
 234                                                   (u32)CMD_WEP_KEY_INDEX_MASK));
 235
 236                 /* Copy key types and material to host command structure */
 237                 for (i = 0; i < 4; i++) {
 238                         struct enc_key * pkey = &assoc_req->wep_keys[i];
 239
 240                         switch (pkey->len) {
 241                         case KEY_LEN_WEP_40:
 242                                 wep->keytype[i] = CMD_TYPE_WEP_40_BIT;
 243                                 memmove(&wep->keymaterial[i], pkey->key,
 244                                         pkey->len);
 245                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
 246                                 break;
 247                         case KEY_LEN_WEP_104:
 248                                 wep->keytype[i] = CMD_TYPE_WEP_104_BIT;
 249                                 memmove(&wep->keymaterial[i], pkey->key,
 250                                         pkey->len);
 251                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
 252                                 break;
 253                         case 0:
 254                                 break;
 255                         default:
 256                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
 257                                        i, pkey->len);
 258                                 ret = -1;
 259                                 goto done;
 260                                 break;
 261                         }
 262                 }
 263         } else if (cmd_act == CMD_ACT_REMOVE) {
 264                 /* ACT_REMOVE clears _all_ WEP keys */
 265                 wep->action = cpu_to_le16(CMD_ACT_REMOVE);
 266
 267                 /* default tx key index */
 268                 wep->keyindex = cpu_to_le16((u16)(priv->wep_tx_keyidx &
 269                                                   (u32)CMD_WEP_KEY_INDEX_MASK));
 270                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
 271         }
 272
 273         ret = 0;
 274
 275 done:
 276         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 277         return ret;
 278 }
 279
 280 static int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv,
 281                                       struct cmd_ds_command *cmd,
 282                                       u16 cmd_action,
 283                                       void * pdata_buf)
 284 {
 285         struct cmd_ds_802_11_enable_rsn *penableRSN = &cmd->params.enbrsn;
 286         u32 * enable = pdata_buf;
 287
 288         lbs_deb_enter(LBS_DEB_CMD);
 289
 290         cmd->command = cpu_to_le16(CMD_802_11_ENABLE_RSN);
 291         cmd->size = cpu_to_le16(sizeof(*penableRSN) + S_DS_GEN);
 292         penableRSN->action = cpu_to_le16(cmd_action);
 293
 294         if (cmd_action == CMD_ACT_SET) {
 295                 if (*enable)
 296                         penableRSN->enable = cpu_to_le16(CMD_ENABLE_RSN);
 297                 else
 298                         penableRSN->enable = cpu_to_le16(CMD_DISABLE_RSN);
 299                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
 300         }
 301
 302         lbs_deb_leave(LBS_DEB_CMD);
 303         return 0;
 304 }
 305
 306
 307 static ssize_t lbs_tlv_size(const u8 *tlv, u16 size)
 308 {
 309         ssize_t pos = 0;
 310         struct mrvlietypesheader *tlv_h;
 311         while (pos < size) {
 312                 u16 length;
 313                 tlv_h = (struct mrvlietypesheader *) tlv;
 314                 if (tlv_h->len == 0)
 315                         return pos;
 316                 length = le16_to_cpu(tlv_h->len) +
 317                         sizeof(struct mrvlietypesheader);
 318                 pos += length;
 319                 tlv += length;
 320         }
 321         return pos;
 322 }
 323
 324
 325 static void lbs_cmd_802_11_subscribe_event(struct lbs_private *priv,
 326         struct cmd_ds_command *cmd, u16 cmd_action,
 327         void *pdata_buf)
 328 {
 329         struct cmd_ds_802_11_subscribe_event *events =
 330                 (struct cmd_ds_802_11_subscribe_event *) pdata_buf;
 331
 332         /* pdata_buf points to a struct cmd_ds_802_11_subscribe_event and room
 333          * for various Marvell TLVs */
 334
 335         lbs_deb_enter(LBS_DEB_CMD);
 336
 337         cmd->size = cpu_to_le16(sizeof(*events)
 338                         - sizeof(events->tlv)
 339                         + S_DS_GEN);
 340         cmd->params.subscribe_event.action = cpu_to_le16(cmd_action);
 341         if (cmd_action == CMD_ACT_GET) {
 342                 cmd->params.subscribe_event.events = 0;
 343         } else {
 344                 ssize_t sz = lbs_tlv_size(events->tlv, sizeof(events->tlv));
 345                 cmd->size = cpu_to_le16(le16_to_cpu(cmd->size) + sz);
 346                 cmd->params.subscribe_event.events = events->events;
 347                 memcpy(cmd->params.subscribe_event.tlv, events->tlv, sz);
 348         }
 349
 350         lbs_deb_leave(LBS_DEB_CMD);
 351 }
 352
 353 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet * pkeyparamset,
 354                             struct enc_key * pkey)
 355 {
 356         lbs_deb_enter(LBS_DEB_CMD);
 357
 358         if (pkey->flags & KEY_INFO_WPA_ENABLED) {
 359                 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
 360         }
 361         if (pkey->flags & KEY_INFO_WPA_UNICAST) {
 362                 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
 363         }
 364         if (pkey->flags & KEY_INFO_WPA_MCAST) {
 365                 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
 366         }
 367
 368         pkeyparamset->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
 369         pkeyparamset->keytypeid = cpu_to_le16(pkey->type);
 370         pkeyparamset->keylen = cpu_to_le16(pkey->len);
 371         memcpy(pkeyparamset->key, pkey->key, pkey->len);
 372         pkeyparamset->length = cpu_to_le16(  sizeof(pkeyparamset->keytypeid)
 373                                                 + sizeof(pkeyparamset->keyinfo)
 374                                                 + sizeof(pkeyparamset->keylen)
 375                                                 + sizeof(pkeyparamset->key));
 376         lbs_deb_leave(LBS_DEB_CMD);
 377 }
 378
 379 static int lbs_cmd_802_11_key_material(struct lbs_private *priv,
 380                                         struct cmd_ds_command *cmd,
 381                                         u16 cmd_action,
 382                                         u32 cmd_oid, void *pdata_buf)
 383 {
 384         struct cmd_ds_802_11_key_material *pkeymaterial =
 385             &cmd->params.keymaterial;
 386         struct assoc_request * assoc_req = pdata_buf;
 387         int ret = 0;
 388         int index = 0;
 389
 390         lbs_deb_enter(LBS_DEB_CMD);
 391
 392         cmd->command = cpu_to_le16(CMD_802_11_KEY_MATERIAL);
 393         pkeymaterial->action = cpu_to_le16(cmd_action);
 394
 395         if (cmd_action == CMD_ACT_GET) {
 396                 cmd->size = cpu_to_le16(S_DS_GEN + sizeof (pkeymaterial->action));
 397                 ret = 0;
 398                 goto done;
 399         }
 400
 401         memset(&pkeymaterial->keyParamSet, 0, sizeof(pkeymaterial->keyParamSet));
 402
 403         if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
 404                 set_one_wpa_key(&pkeymaterial->keyParamSet[index],
 405                                 &assoc_req->wpa_unicast_key);
 406                 index++;
 407         }
 408
 409         if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
 410                 set_one_wpa_key(&pkeymaterial->keyParamSet[index],
 411                                 &assoc_req->wpa_mcast_key);
 412                 index++;
 413         }
 414
 415         cmd->size = cpu_to_le16(  S_DS_GEN
 416                                 + sizeof (pkeymaterial->action)
 417                                 + (index * sizeof(struct MrvlIEtype_keyParamSet)));
 418
 419         ret = 0;
 420
 421 done:
 422         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 423         return ret;
 424 }
 425
 426 static int lbs_cmd_802_11_reset(struct lbs_private *priv,
 427                                  struct cmd_ds_command *cmd, int cmd_action)
 428 {
 429         struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
 430
 431         lbs_deb_enter(LBS_DEB_CMD);
 432
 433         cmd->command = cpu_to_le16(CMD_802_11_RESET);
 434         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
 435         reset->action = cpu_to_le16(cmd_action);
 436
 437         lbs_deb_leave(LBS_DEB_CMD);
 438         return 0;
 439 }
 440
 441 static int lbs_cmd_802_11_get_log(struct lbs_private *priv,
 442                                    struct cmd_ds_command *cmd)
 443 {
 444         lbs_deb_enter(LBS_DEB_CMD);
 445         cmd->command = cpu_to_le16(CMD_802_11_GET_LOG);
 446         cmd->size =
 447                 cpu_to_le16(sizeof(struct cmd_ds_802_11_get_log) + S_DS_GEN);
 448
 449         lbs_deb_leave(LBS_DEB_CMD);
 450         return 0;
 451 }
 452
 453 static int lbs_cmd_802_11_get_stat(struct lbs_private *priv,
 454                                     struct cmd_ds_command *cmd)
 455 {
 456         lbs_deb_enter(LBS_DEB_CMD);
 457         cmd->command = cpu_to_le16(CMD_802_11_GET_STAT);
 458         cmd->size =
 459             cpu_to_le16(sizeof(struct cmd_ds_802_11_get_stat) + S_DS_GEN);
 460
 461         lbs_deb_leave(LBS_DEB_CMD);
 462         return 0;
 463 }
 464
 465 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
 466                                     struct cmd_ds_command *cmd,
 467                                     int cmd_action,
 468                                     int cmd_oid, void *pdata_buf)
 469 {
 470         struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
 471         u8 ucTemp;
 472
 473         lbs_deb_enter(LBS_DEB_CMD);
 474
 475         lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
 476
 477         cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
 478         cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
 479
 480         switch (cmd_oid) {
 481         case OID_802_11_INFRASTRUCTURE_MODE:
 482         {
 483                 u8 mode = (u8) (size_t) pdata_buf;
 484                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 485                 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
 486                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
 487                 if (mode == IW_MODE_ADHOC) {
 488                         ucTemp = SNMP_MIB_VALUE_ADHOC;
 489                 } else {
 490                         /* Infra and Auto modes */
 491                         ucTemp = SNMP_MIB_VALUE_INFRA;
 492                 }
 493
 494                 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
 495
 496                 break;
 497         }
 498
 499         case OID_802_11D_ENABLE:
 500                 {
 501                         u32 ulTemp;
 502
 503                         pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
 504
 505                         if (cmd_action == CMD_ACT_SET) {
 506                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 507                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 508                                 ulTemp = *(u32 *)pdata_buf;
 509                                 *((__le16 *)(pSNMPMIB->value)) =
 510                                     cpu_to_le16((u16) ulTemp);
 511                         }
 512                         break;
 513                 }
 514
 515         case OID_802_11_FRAGMENTATION_THRESHOLD:
 516                 {
 517                         u32 ulTemp;
 518
 519                         pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
 520
 521                         if (cmd_action == CMD_ACT_GET) {
 522                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 523                         } else if (cmd_action == CMD_ACT_SET) {
 524                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 525                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 526                                 ulTemp = *((u32 *) pdata_buf);
 527                                 *((__le16 *)(pSNMPMIB->value)) =
 528                                     cpu_to_le16((u16) ulTemp);
 529
 530                         }
 531
 532                         break;
 533                 }
 534
 535         case OID_802_11_RTS_THRESHOLD:
 536                 {
 537
 538                         u32 ulTemp;
 539                         pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
 540
 541                         if (cmd_action == CMD_ACT_GET) {
 542                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 543                         } else if (cmd_action == CMD_ACT_SET) {
 544                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 545                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 546                                 ulTemp = *((u32 *)pdata_buf);
 547                                 *(__le16 *)(pSNMPMIB->value) =
 548                                     cpu_to_le16((u16) ulTemp);
 549
 550                         }
 551                         break;
 552                 }
 553         case OID_802_11_TX_RETRYCOUNT:
 554                 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
 555
 556                 if (cmd_action == CMD_ACT_GET) {
 557                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
 558                 } else if (cmd_action == CMD_ACT_SET) {
 559                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
 560                         pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
 561                         *((__le16 *)(pSNMPMIB->value)) =
 562                             cpu_to_le16((u16) priv->txretrycount);
 563                 }
 564
 565                 break;
 566         default:
 567                 break;
 568         }
 569
 570         lbs_deb_cmd(
 571                "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
 572                le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
 573                le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
 574
 575         lbs_deb_cmd(
 576                "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
 577                le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
 578                le16_to_cpu(pSNMPMIB->bufsize),
 579                le16_to_cpu(*(__le16 *) pSNMPMIB->value));
 580
 581         lbs_deb_leave(LBS_DEB_CMD);
 582         return 0;
 583 }
 584
 585 static int lbs_cmd_802_11_radio_control(struct lbs_private *priv,
 586                                          struct cmd_ds_command *cmd,
 587                                          int cmd_action)
 588 {
 589         struct cmd_ds_802_11_radio_control *pradiocontrol = &cmd->params.radio;
 590
 591         lbs_deb_enter(LBS_DEB_CMD);
 592
 593         cmd->size =
 594             cpu_to_le16((sizeof(struct cmd_ds_802_11_radio_control)) +
 595                              S_DS_GEN);
 596         cmd->command = cpu_to_le16(CMD_802_11_RADIO_CONTROL);
 597
 598         pradiocontrol->action = cpu_to_le16(cmd_action);
 599
 600         switch (priv->preamble) {
 601         case CMD_TYPE_SHORT_PREAMBLE:
 602                 pradiocontrol->control = cpu_to_le16(SET_SHORT_PREAMBLE);
 603                 break;
 604
 605         case CMD_TYPE_LONG_PREAMBLE:
 606                 pradiocontrol->control = cpu_to_le16(SET_LONG_PREAMBLE);
 607                 break;
 608
 609         case CMD_TYPE_AUTO_PREAMBLE:
 610         default:
 611                 pradiocontrol->control = cpu_to_le16(SET_AUTO_PREAMBLE);
 612                 break;
 613         }
 614
 615         if (priv->radioon)
 616                 pradiocontrol->control |= cpu_to_le16(TURN_ON_RF);
 617         else
 618                 pradiocontrol->control &= cpu_to_le16(~TURN_ON_RF);
 619
 620         lbs_deb_leave(LBS_DEB_CMD);
 621         return 0;
 622 }
 623
 624 static int lbs_cmd_802_11_rf_tx_power(struct lbs_private *priv,
 625                                        struct cmd_ds_command *cmd,
 626                                        u16 cmd_action, void *pdata_buf)
 627 {
 628
 629         struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
 630
 631         lbs_deb_enter(LBS_DEB_CMD);
 632
 633         cmd->size =
 634             cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
 635         cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
 636         prtp->action = cpu_to_le16(cmd_action);
 637
 638         lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
 639                     le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
 640                     le16_to_cpu(prtp->action));
 641
 642         switch (cmd_action) {
 643         case CMD_ACT_TX_POWER_OPT_GET:
 644                 prtp->action = cpu_to_le16(CMD_ACT_GET);
 645                 prtp->currentlevel = 0;
 646                 break;
 647
 648         case CMD_ACT_TX_POWER_OPT_SET_HIGH:
 649                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 650                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
 651                 break;
 652
 653         case CMD_ACT_TX_POWER_OPT_SET_MID:
 654                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 655                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
 656                 break;
 657
 658         case CMD_ACT_TX_POWER_OPT_SET_LOW:
 659                 prtp->action = cpu_to_le16(CMD_ACT_SET);
 660                 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
 661                 break;
 662         }
 663
 664         lbs_deb_leave(LBS_DEB_CMD);
 665         return 0;
 666 }
 667
 668 static int lbs_cmd_802_11_monitor_mode(struct lbs_private *priv,
 669                                       struct cmd_ds_command *cmd,
 670                                       u16 cmd_action, void *pdata_buf)
 671 {
 672         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
 673
 674         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
 675         cmd->size =
 676             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
 677                              S_DS_GEN);
 678
 679         monitor->action = cpu_to_le16(cmd_action);
 680         if (cmd_action == CMD_ACT_SET) {
 681                 monitor->mode =
 682                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
 683         }
 684
 685         return 0;
 686 }
 687
 688 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 689                                               struct cmd_ds_command *cmd,
 690                                               u16 cmd_action)
 691 {
 692         struct cmd_ds_802_11_rate_adapt_rateset
 693         *rateadapt = &cmd->params.rateset;
 694
 695         lbs_deb_enter(LBS_DEB_CMD);
 696         cmd->size =
 697             cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
 698                              + S_DS_GEN);
 699         cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
 700
 701         rateadapt->action = cpu_to_le16(cmd_action);
 702         rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
 703         rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
 704
 705         lbs_deb_leave(LBS_DEB_CMD);
 706         return 0;
 707 }
 708
 709 /**
 710  *  @brief Get the current data rate
 711  *
 712  *  @param priv         A pointer to struct lbs_private structure
 713  *
 714  *  @return             The data rate on success, error on failure
 715  */
 716 int lbs_get_data_rate(struct lbs_private *priv)
 717 {
 718         struct cmd_ds_802_11_data_rate cmd;
 719         int ret = -1;
 720
 721         lbs_deb_enter(LBS_DEB_CMD);
 722
 723         memset(&cmd, 0, sizeof(cmd));
 724         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 725         cmd.action = cpu_to_le16(CMD_ACT_GET_TX_RATE);
 726
 727         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, cmd);
 728         if (ret)
 729                 goto out;
 730
 731         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 732
 733         ret = (int) lbs_fw_index_to_data_rate(cmd.rates[0]);
 734         lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", ret);
 735
 736 out:
 737         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 738         return ret;
 739 }
 740
 741 /**
 742  *  @brief Set the data rate
 743  *
 744  *  @param priv         A pointer to struct lbs_private structure
 745  *  @param rate         The desired data rate, or 0 to clear a locked rate
 746  *
 747  *  @return             0 on success, error on failure
 748  */
 749 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 750 {
 751         struct cmd_ds_802_11_data_rate cmd;
 752         int ret = 0;
 753
 754         lbs_deb_enter(LBS_DEB_CMD);
 755
 756         memset(&cmd, 0, sizeof(cmd));
 757         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 758
 759         if (rate > 0) {
 760                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
 761                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
 762                 if (cmd.rates[0] == 0) {
 763                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
 764                                     " 0x%02X\n", rate);
 765                         ret = 0;
 766                         goto out;
 767                 }
 768                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
 769         } else {
 770                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
 771                 lbs_deb_cmd("DATA_RATE: setting auto\n");
 772         }
 773
 774         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, cmd);
 775         if (ret)
 776                 goto out;
 777
 778         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
 779
 780         /* FIXME: get actual rates FW can do if this command actually returns
 781          * all data rates supported.
 782          */
 783         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
 784         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
 785
 786 out:
 787         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 788         return ret;
 789 }
 790
 791 static int lbs_cmd_mac_multicast_adr(struct lbs_private *priv,
 792                                       struct cmd_ds_command *cmd,
 793                                       u16 cmd_action)
 794 {
 795         struct cmd_ds_mac_multicast_adr *pMCastAdr = &cmd->params.madr;
 796
 797         lbs_deb_enter(LBS_DEB_CMD);
 798         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_multicast_adr) +
 799                              S_DS_GEN);
 800         cmd->command = cpu_to_le16(CMD_MAC_MULTICAST_ADR);
 801
 802         lbs_deb_cmd("MULTICAST_ADR: setting %d addresses\n", pMCastAdr->nr_of_adrs);
 803         pMCastAdr->action = cpu_to_le16(cmd_action);
 804         pMCastAdr->nr_of_adrs =
 805             cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
 806         memcpy(pMCastAdr->maclist, priv->multicastlist,
 807                priv->nr_of_multicastmacaddr * ETH_ALEN);
 808
 809         lbs_deb_leave(LBS_DEB_CMD);
 810         return 0;
 811 }
 812
 813 /**
 814  *  @brief Get the radio channel
 815  *
 816  *  @param priv         A pointer to struct lbs_private structure
 817  *
 818  *  @return             The channel on success, error on failure
 819  */
 820 int lbs_get_channel(struct lbs_private *priv)
 821 {
 822         struct cmd_ds_802_11_rf_channel cmd;
 823         int ret = 0;
 824
 825         lbs_deb_enter(LBS_DEB_CMD);
 826
 827         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 828         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 829
 830         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, cmd);
 831         if (ret)
 832                 goto out;
 833
 834         lbs_deb_cmd("current radio channel is %d\n", cmd.channel);
 835         ret = (int) cmd.channel;
 836
 837 out:
 838         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 839         return ret;
 840 }
 841
 842 /**
 843  *  @brief Set the radio channel
 844  *
 845  *  @param priv         A pointer to struct lbs_private structure
 846  *  @param channel      The desired channel, or 0 to clear a locked channel
 847  *
 848  *  @return             0 on success, error on failure
 849  */
 850 int lbs_set_channel(struct lbs_private *priv, u8 channel)
 851 {
 852         struct cmd_ds_802_11_rf_channel cmd;
 853         u8 old_channel = priv->curbssparams.channel;
 854         int ret = 0;
 855
 856         lbs_deb_enter(LBS_DEB_CMD);
 857
 858         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 859         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 860         cmd.channel = cpu_to_le16(channel);
 861
 862         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, cmd);
 863         if (ret)
 864                 goto out;
 865
 866         priv->curbssparams.channel = cmd.channel;
 867         lbs_deb_cmd("channel switch from %d to %d\n", old_channel, cmd.channel);
 868
 869 out:
 870         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 871         return ret;
 872 }
 873
 874 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
 875                                 struct cmd_ds_command *cmd)
 876 {
 877
 878         lbs_deb_enter(LBS_DEB_CMD);
 879         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
 880         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
 881         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
 882
 883         /* reset Beacon SNR/NF/RSSI values */
 884         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
 885         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
 886         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
 887         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
 888         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
 889         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
 890
 891         lbs_deb_leave(LBS_DEB_CMD);
 892         return 0;
 893 }
 894
 895 static int lbs_cmd_reg_access(struct lbs_private *priv,
 896                                struct cmd_ds_command *cmdptr,
 897                                u8 cmd_action, void *pdata_buf)
 898 {
 899         struct lbs_offset_value *offval;
 900
 901         lbs_deb_enter(LBS_DEB_CMD);
 902
 903         offval = (struct lbs_offset_value *)pdata_buf;
 904
 905         switch (le16_to_cpu(cmdptr->command)) {
 906         case CMD_MAC_REG_ACCESS:
 907                 {
 908                         struct cmd_ds_mac_reg_access *macreg;
 909
 910                         cmdptr->size =
 911                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
 912                                         + S_DS_GEN);
 913                         macreg =
 914                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
 915                             macreg;
 916
 917                         macreg->action = cpu_to_le16(cmd_action);
 918                         macreg->offset = cpu_to_le16((u16) offval->offset);
 919                         macreg->value = cpu_to_le32(offval->value);
 920
 921                         break;
 922                 }
 923
 924         case CMD_BBP_REG_ACCESS:
 925                 {
 926                         struct cmd_ds_bbp_reg_access *bbpreg;
 927
 928                         cmdptr->size =
 929                             cpu_to_le16(sizeof
 930                                              (struct cmd_ds_bbp_reg_access)
 931                                              + S_DS_GEN);
 932                         bbpreg =
 933                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
 934                             bbpreg;
 935
 936                         bbpreg->action = cpu_to_le16(cmd_action);
 937                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
 938                         bbpreg->value = (u8) offval->value;
 939
 940                         break;
 941                 }
 942
 943         case CMD_RF_REG_ACCESS:
 944                 {
 945                         struct cmd_ds_rf_reg_access *rfreg;
 946
 947                         cmdptr->size =
 948                             cpu_to_le16(sizeof
 949                                              (struct cmd_ds_rf_reg_access) +
 950                                              S_DS_GEN);
 951                         rfreg =
 952                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
 953                             rfreg;
 954
 955                         rfreg->action = cpu_to_le16(cmd_action);
 956                         rfreg->offset = cpu_to_le16((u16) offval->offset);
 957                         rfreg->value = (u8) offval->value;
 958
 959                         break;
 960                 }
 961
 962         default:
 963                 break;
 964         }
 965
 966         lbs_deb_leave(LBS_DEB_CMD);
 967         return 0;
 968 }
 969
 970 static int lbs_cmd_802_11_mac_address(struct lbs_private *priv,
 971                                        struct cmd_ds_command *cmd,
 972                                        u16 cmd_action)
 973 {
 974
 975         lbs_deb_enter(LBS_DEB_CMD);
 976         cmd->command = cpu_to_le16(CMD_802_11_MAC_ADDRESS);
 977         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_mac_address) +
 978                              S_DS_GEN);
 979         cmd->result = 0;
 980
 981         cmd->params.macadd.action = cpu_to_le16(cmd_action);
 982
 983         if (cmd_action == CMD_ACT_SET) {
 984                 memcpy(cmd->params.macadd.macadd,
 985                        priv->current_addr, ETH_ALEN);
 986                 lbs_deb_hex(LBS_DEB_CMD, "SET_CMD: MAC addr", priv->current_addr, 6);
 987         }
 988
 989         lbs_deb_leave(LBS_DEB_CMD);
 990         return 0;
 991 }
 992
 993 static int lbs_cmd_802_11_eeprom_access(struct lbs_private *priv,
 994                                          struct cmd_ds_command *cmd,
 995                                          int cmd_action, void *pdata_buf)
 996 {
 997         struct lbs_ioctl_regrdwr *ea = pdata_buf;
 998
 999         lbs_deb_enter(LBS_DEB_CMD);
1000
1001         cmd->command = cpu_to_le16(CMD_802_11_EEPROM_ACCESS);
1002         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) +
1003                                 S_DS_GEN);
1004         cmd->result = 0;
1005
1006         cmd->params.rdeeprom.action = cpu_to_le16(ea->action);
1007         cmd->params.rdeeprom.offset = cpu_to_le16(ea->offset);
1008         cmd->params.rdeeprom.bytecount = cpu_to_le16(ea->NOB);
1009         cmd->params.rdeeprom.value = 0;
1010
1011         lbs_deb_leave(LBS_DEB_CMD);
1012         return 0;
1013 }
1014
1015 static int lbs_cmd_bt_access(struct lbs_private *priv,
1016                                struct cmd_ds_command *cmd,
1017                                u16 cmd_action, void *pdata_buf)
1018 {
1019         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
1020         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1021
1022         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
1023         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
1024         cmd->result = 0;
1025         bt_access->action = cpu_to_le16(cmd_action);
1026
1027         switch (cmd_action) {
1028         case CMD_ACT_BT_ACCESS_ADD:
1029                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
1030                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
1031                 break;
1032         case CMD_ACT_BT_ACCESS_DEL:
1033                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
1034                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
1035                 break;
1036         case CMD_ACT_BT_ACCESS_LIST:
1037                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1038                 break;
1039         case CMD_ACT_BT_ACCESS_RESET:
1040                 break;
1041         case CMD_ACT_BT_ACCESS_SET_INVERT:
1042                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1043                 break;
1044         case CMD_ACT_BT_ACCESS_GET_INVERT:
1045                 break;
1046         default:
1047                 break;
1048         }
1049         lbs_deb_leave(LBS_DEB_CMD);
1050         return 0;
1051 }
1052
1053 static int lbs_cmd_fwt_access(struct lbs_private *priv,
1054                                struct cmd_ds_command *cmd,
1055                                u16 cmd_action, void *pdata_buf)
1056 {
1057         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1058         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1059
1060         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1061         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1062         cmd->result = 0;
1063
1064         if (pdata_buf)
1065                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1066         else
1067                 memset(fwt_access, 0, sizeof(*fwt_access));
1068
1069         fwt_access->action = cpu_to_le16(cmd_action);
1070
1071         lbs_deb_leave(LBS_DEB_CMD);
1072         return 0;
1073 }
1074
1075 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1076                     struct cmd_ds_mesh_access *cmd)
1077 {
1078         int ret;
1079
1080         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1081
1082         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1083         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_access) + S_DS_GEN);
1084         cmd->hdr.result = 0;
1085
1086         cmd->action = cpu_to_le16(cmd_action);
1087
1088         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, (*cmd));
1089
1090         lbs_deb_leave(LBS_DEB_CMD);
1091         return ret;
1092 }
1093 EXPORT_SYMBOL_GPL(lbs_mesh_access);
1094
1095 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1096                                 struct cmd_ds_command *cmd,
1097                                 u16 cmd_action)
1098 {
1099         struct cmd_ds_802_11_beacon_control
1100                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1101
1102         lbs_deb_enter(LBS_DEB_CMD);
1103         cmd->size =
1104             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1105                              + S_DS_GEN);
1106         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1107
1108         bcn_ctrl->action = cpu_to_le16(cmd_action);
1109         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1110         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1111
1112         lbs_deb_leave(LBS_DEB_CMD);
1113         return 0;
1114 }
1115
1116 /*
1117  * Note: NEVER use lbs_queue_cmd() with addtail==0 other than for
1118  * the command timer, because it does not account for queued commands.
1119  */
1120 void lbs_queue_cmd(struct lbs_private *priv,
1121         struct cmd_ctrl_node *cmdnode,
1122         u8 addtail)
1123 {
1124         unsigned long flags;
1125
1126         lbs_deb_enter(LBS_DEB_HOST);
1127
1128         if (!cmdnode || !cmdnode->cmdbuf) {
1129                 lbs_deb_host("QUEUE_CMD: cmdnode or cmdbuf is NULL\n");
1130                 goto done;
1131         }
1132
1133         /* Exit_PS command needs to be queued in the header always. */
1134         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1135                 struct cmd_ds_802_11_ps_mode *psm = (void *) cmdnode->cmdbuf;
1136
1137                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1138                         if (priv->psstate != PS_STATE_FULL_POWER)
1139                                 addtail = 0;
1140                 }
1141         }
1142
1143         spin_lock_irqsave(&priv->driver_lock, flags);
1144
1145         if (addtail)
1146                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1147         else
1148                 list_add(&cmdnode->list, &priv->cmdpendingq);
1149
1150         spin_unlock_irqrestore(&priv->driver_lock, flags);
1151
1152         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1153                le16_to_cpu(cmdnode->cmdbuf->command));
1154
1155 done:
1156         lbs_deb_leave(LBS_DEB_HOST);
1157 }
1158
1159 /*
1160  * TODO: Fix the issue when DownloadcommandToStation is being called the
1161  * second time when the command times out. All the cmdptr->xxx are in little
1162  * endian and therefore all the comparissions will fail.
1163  * For now - we are not performing the endian conversion the second time - but
1164  * for PS and DEEP_SLEEP we need to worry
1165  */
1166 static int DownloadcommandToStation(struct lbs_private *priv,
1167                                     struct cmd_ctrl_node *cmdnode)
1168 {
1169         unsigned long flags;
1170         struct cmd_header *cmd;
1171         int ret = -1;
1172         u16 cmdsize;
1173         u16 command;
1174
1175         lbs_deb_enter(LBS_DEB_HOST);
1176
1177         if (!priv || !cmdnode) {
1178                 lbs_deb_host("DNLD_CMD: priv or cmdmode is NULL\n");
1179                 goto done;
1180         }
1181
1182         cmd = cmdnode->cmdbuf;
1183
1184         spin_lock_irqsave(&priv->driver_lock, flags);
1185         if (!cmd || !cmd->size) {
1186                 lbs_deb_host("DNLD_CMD: cmdptr is NULL or zero\n");
1187                 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
1188                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1189                 goto done;
1190         }
1191
1192         priv->cur_cmd = cmdnode;
1193         priv->cur_cmd_retcode = 0;
1194         spin_unlock_irqrestore(&priv->driver_lock, flags);
1195
1196         cmdsize = le16_to_cpu(cmd->size);
1197         command = le16_to_cpu(cmd->command);
1198
1199         lbs_deb_host("DNLD_CMD: command 0x%04x, size %d, jiffies %lu\n",
1200                     command, cmdsize, jiffies);
1201         lbs_deb_hex(LBS_DEB_HOST, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1202
1203         cmdnode->cmdwaitqwoken = 0;
1204
1205         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1206
1207         if (ret != 0) {
1208                 lbs_deb_host("DNLD_CMD: hw_host_to_card failed\n");
1209                 spin_lock_irqsave(&priv->driver_lock, flags);
1210                 priv->cur_cmd_retcode = ret;
1211                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
1212                 priv->cur_cmd = NULL;
1213                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1214                 goto done;
1215         }
1216
1217         lbs_deb_cmd("DNLD_CMD: sent command 0x%04x, jiffies %lu\n", command, jiffies);
1218
1219         /* Setup the timer after transmit command */
1220         if (command == CMD_802_11_SCAN || command == CMD_802_11_AUTHENTICATE
1221             || command == CMD_802_11_ASSOCIATE)
1222                 mod_timer(&priv->command_timer, jiffies + (10*HZ));
1223         else
1224                 mod_timer(&priv->command_timer, jiffies + (5*HZ));
1225
1226         ret = 0;
1227
1228 done:
1229         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1230         return ret;
1231 }
1232
1233 static int lbs_cmd_mac_control(struct lbs_private *priv,
1234                                 struct cmd_ds_command *cmd)
1235 {
1236         struct cmd_ds_mac_control *mac = &cmd->params.macctrl;
1237
1238         lbs_deb_enter(LBS_DEB_CMD);
1239
1240         cmd->command = cpu_to_le16(CMD_MAC_CONTROL);
1241         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_control) + S_DS_GEN);
1242         mac->action = cpu_to_le16(priv->currentpacketfilter);
1243
1244         lbs_deb_cmd("MAC_CONTROL: action 0x%x, size %d\n",
1245                     le16_to_cpu(mac->action), le16_to_cpu(cmd->size));
1246
1247         lbs_deb_leave(LBS_DEB_CMD);
1248         return 0;
1249 }
1250
1251 /**
1252  *  This function inserts command node to cmdfreeq
1253  *  after cleans it. Requires priv->driver_lock held.
1254  */
1255 void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1256         struct cmd_ctrl_node *ptempcmd)
1257 {
1258
1259         if (!ptempcmd)
1260                 return;
1261
1262         cleanup_cmdnode(ptempcmd);
1263         list_add_tail(&ptempcmd->list, &priv->cmdfreeq);
1264 }
1265
1266 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1267         struct cmd_ctrl_node *ptempcmd)
1268 {
1269         unsigned long flags;
1270
1271         spin_lock_irqsave(&priv->driver_lock, flags);
1272         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1273         spin_unlock_irqrestore(&priv->driver_lock, flags);
1274 }
1275
1276 int lbs_set_radio_control(struct lbs_private *priv)
1277 {
1278         int ret = 0;
1279
1280         lbs_deb_enter(LBS_DEB_CMD);
1281
1282         ret = lbs_prepare_and_send_command(priv,
1283                                     CMD_802_11_RADIO_CONTROL,
1284                                     CMD_ACT_SET,
1285                                     CMD_OPTION_WAITFORRSP, 0, NULL);
1286
1287         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n",
1288                priv->radioon, priv->preamble);
1289
1290         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1291         return ret;
1292 }
1293
1294 int lbs_set_mac_packet_filter(struct lbs_private *priv)
1295 {
1296         int ret = 0;
1297
1298         lbs_deb_enter(LBS_DEB_CMD);
1299
1300         /* Send MAC control command to station */
1301         ret = lbs_prepare_and_send_command(priv,
1302                                     CMD_MAC_CONTROL, 0, 0, 0, NULL);
1303
1304         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1305         return ret;
1306 }
1307
1308 /**
1309  *  @brief This function prepare the command before send to firmware.
1310  *
1311  *  @param priv         A pointer to struct lbs_private structure
1312  *  @param cmd_no       command number
1313  *  @param cmd_action   command action: GET or SET
1314  *  @param wait_option  wait option: wait response or not
1315  *  @param cmd_oid      cmd oid: treated as sub command
1316  *  @param pdata_buf    A pointer to informaion buffer
1317  *  @return             0 or -1
1318  */
1319 int lbs_prepare_and_send_command(struct lbs_private *priv,
1320                           u16 cmd_no,
1321                           u16 cmd_action,
1322                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1323 {
1324         int ret = 0;
1325         struct cmd_ctrl_node *cmdnode;
1326         struct cmd_ds_command *cmdptr;
1327         unsigned long flags;
1328
1329         lbs_deb_enter(LBS_DEB_HOST);
1330
1331         if (!priv) {
1332                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1333                 ret = -1;
1334                 goto done;
1335         }
1336
1337         if (priv->surpriseremoved) {
1338                 lbs_deb_host("PREP_CMD: card removed\n");
1339                 ret = -1;
1340                 goto done;
1341         }
1342
1343         cmdnode = lbs_get_cmd_ctrl_node(priv);
1344
1345         if (cmdnode == NULL) {
1346                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1347
1348                 /* Wake up main thread to execute next command */
1349                 wake_up_interruptible(&priv->waitq);
1350                 ret = -1;
1351                 goto done;
1352         }
1353
1354         lbs_set_cmd_ctrl_node(priv, cmdnode, wait_option, pdata_buf);
1355
1356         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1357
1358         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1359
1360         if (!cmdptr) {
1361                 lbs_deb_host("PREP_CMD: cmdptr is NULL\n");
1362                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1363                 ret = -1;
1364                 goto done;
1365         }
1366
1367         /* Set sequence number, command and INT option */
1368         priv->seqnum++;
1369         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1370
1371         cmdptr->command = cpu_to_le16(cmd_no);
1372         cmdptr->result = 0;
1373
1374         switch (cmd_no) {
1375         case CMD_802_11_PS_MODE:
1376                 ret = lbs_cmd_802_11_ps_mode(priv, cmdptr, cmd_action);
1377                 break;
1378
1379         case CMD_802_11_SCAN:
1380                 ret = lbs_cmd_80211_scan(priv, cmdptr, pdata_buf);
1381                 break;
1382
1383         case CMD_MAC_CONTROL:
1384                 ret = lbs_cmd_mac_control(priv, cmdptr);
1385                 break;
1386
1387         case CMD_802_11_ASSOCIATE:
1388         case CMD_802_11_REASSOCIATE:
1389                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1390                 break;
1391
1392         case CMD_802_11_DEAUTHENTICATE:
1393                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1394                 break;
1395
1396         case CMD_802_11_SET_WEP:
1397                 ret = lbs_cmd_802_11_set_wep(priv, cmdptr, cmd_action, pdata_buf);
1398                 break;
1399
1400         case CMD_802_11_AD_HOC_START:
1401                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1402                 break;
1403         case CMD_CODE_DNLD:
1404                 break;
1405
1406         case CMD_802_11_RESET:
1407                 ret = lbs_cmd_802_11_reset(priv, cmdptr, cmd_action);
1408                 break;
1409
1410         case CMD_802_11_GET_LOG:
1411                 ret = lbs_cmd_802_11_get_log(priv, cmdptr);
1412                 break;
1413
1414         case CMD_802_11_AUTHENTICATE:
1415                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1416                 break;
1417
1418         case CMD_802_11_GET_STAT:
1419                 ret = lbs_cmd_802_11_get_stat(priv, cmdptr);
1420                 break;
1421
1422         case CMD_802_11_SNMP_MIB:
1423                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1424                                                cmd_action, cmd_oid, pdata_buf);
1425                 break;
1426
1427         case CMD_MAC_REG_ACCESS:
1428         case CMD_BBP_REG_ACCESS:
1429         case CMD_RF_REG_ACCESS:
1430                 ret = lbs_cmd_reg_access(priv, cmdptr, cmd_action, pdata_buf);
1431                 break;
1432
1433         case CMD_802_11_RF_TX_POWER:
1434                 ret = lbs_cmd_802_11_rf_tx_power(priv, cmdptr,
1435                                                   cmd_action, pdata_buf);
1436                 break;
1437
1438         case CMD_802_11_RADIO_CONTROL:
1439                 ret = lbs_cmd_802_11_radio_control(priv, cmdptr, cmd_action);
1440                 break;
1441
1442         case CMD_802_11_RATE_ADAPT_RATESET:
1443                 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1444                                                          cmdptr, cmd_action);
1445                 break;
1446
1447         case CMD_MAC_MULTICAST_ADR:
1448                 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1449                 break;
1450
1451         case CMD_802_11_MONITOR_MODE:
1452                 ret = lbs_cmd_802_11_monitor_mode(priv, cmdptr,
1453                                           cmd_action, pdata_buf);
1454                 break;
1455
1456         case CMD_802_11_AD_HOC_JOIN:
1457                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1458                 break;
1459
1460         case CMD_802_11_RSSI:
1461                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1462                 break;
1463
1464         case CMD_802_11_AD_HOC_STOP:
1465                 ret = lbs_cmd_80211_ad_hoc_stop(priv, cmdptr);
1466                 break;
1467
1468         case CMD_802_11_ENABLE_RSN:
1469                 ret = lbs_cmd_802_11_enable_rsn(priv, cmdptr, cmd_action,
1470                                 pdata_buf);
1471                 break;
1472
1473         case CMD_802_11_KEY_MATERIAL:
1474                 ret = lbs_cmd_802_11_key_material(priv, cmdptr, cmd_action,
1475                                 cmd_oid, pdata_buf);
1476                 break;
1477
1478         case CMD_802_11_PAIRWISE_TSC:
1479                 break;
1480         case CMD_802_11_GROUP_TSC:
1481                 break;
1482
1483         case CMD_802_11_MAC_ADDRESS:
1484                 ret = lbs_cmd_802_11_mac_address(priv, cmdptr, cmd_action);
1485                 break;
1486
1487         case CMD_802_11_EEPROM_ACCESS:
1488                 ret = lbs_cmd_802_11_eeprom_access(priv, cmdptr,
1489                                                     cmd_action, pdata_buf);
1490                 break;
1491
1492         case CMD_802_11_SET_AFC:
1493         case CMD_802_11_GET_AFC:
1494
1495                 cmdptr->command = cpu_to_le16(cmd_no);
1496                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1497                                            S_DS_GEN);
1498
1499                 memmove(&cmdptr->params.afc,
1500                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1501
1502                 ret = 0;
1503                 goto done;
1504
1505         case CMD_802_11D_DOMAIN_INFO:
1506                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1507                                                    cmd_no, cmd_action);
1508                 break;
1509
1510         case CMD_802_11_SLEEP_PARAMS:
1511                 ret = lbs_cmd_802_11_sleep_params(priv, cmdptr, cmd_action);
1512                 break;
1513         case CMD_802_11_INACTIVITY_TIMEOUT:
1514                 ret = lbs_cmd_802_11_inactivity_timeout(priv, cmdptr,
1515                                                          cmd_action, pdata_buf);
1516                 lbs_set_cmd_ctrl_node(priv, cmdnode, 0, pdata_buf);
1517                 break;
1518
1519         case CMD_802_11_TPC_CFG:
1520                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1521                 cmdptr->size =
1522                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1523                                      S_DS_GEN);
1524
1525                 memmove(&cmdptr->params.tpccfg,
1526                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1527
1528                 ret = 0;
1529                 break;
1530         case CMD_802_11_LED_GPIO_CTRL:
1531                 {
1532                         struct mrvlietypes_ledgpio *gpio =
1533                             (struct mrvlietypes_ledgpio*)
1534                             cmdptr->params.ledgpio.data;
1535
1536                         memmove(&cmdptr->params.ledgpio,
1537                                 pdata_buf,
1538                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1539
1540                         cmdptr->command =
1541                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1542
1543 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1544                         cmdptr->size =
1545                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1546                                 + S_DS_GEN
1547                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1548                         gpio->header.len = gpio->header.len;
1549
1550                         ret = 0;
1551                         break;
1552                 }
1553         case CMD_802_11_SUBSCRIBE_EVENT:
1554                 lbs_cmd_802_11_subscribe_event(priv, cmdptr,
1555                         cmd_action, pdata_buf);
1556                 break;
1557         case CMD_802_11_PWR_CFG:
1558                 cmdptr->command = cpu_to_le16(CMD_802_11_PWR_CFG);
1559                 cmdptr->size =
1560                     cpu_to_le16(sizeof(struct cmd_ds_802_11_pwr_cfg) +
1561                                      S_DS_GEN);
1562                 memmove(&cmdptr->params.pwrcfg, pdata_buf,
1563                         sizeof(struct cmd_ds_802_11_pwr_cfg));
1564
1565                 ret = 0;
1566                 break;
1567         case CMD_BT_ACCESS:
1568                 ret = lbs_cmd_bt_access(priv, cmdptr, cmd_action, pdata_buf);
1569                 break;
1570
1571         case CMD_FWT_ACCESS:
1572                 ret = lbs_cmd_fwt_access(priv, cmdptr, cmd_action, pdata_buf);
1573                 break;
1574
1575         case CMD_GET_TSF:
1576                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1577                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1578                                            S_DS_GEN);
1579                 ret = 0;
1580                 break;
1581         case CMD_802_11_BEACON_CTRL:
1582                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1583                 break;
1584         default:
1585                 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1586                 ret = -1;
1587                 break;
1588         }
1589
1590         /* return error, since the command preparation failed */
1591         if (ret != 0) {
1592                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1593                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1594                 ret = -1;
1595                 goto done;
1596         }
1597
1598         cmdnode->cmdwaitqwoken = 0;
1599
1600         lbs_queue_cmd(priv, cmdnode, 1);
1601         wake_up_interruptible(&priv->waitq);
1602
1603         if (wait_option & CMD_OPTION_WAITFORRSP) {
1604                 lbs_deb_host("PREP_CMD: wait for response\n");
1605                 might_sleep();
1606                 wait_event_interruptible(cmdnode->cmdwait_q,
1607                                          cmdnode->cmdwaitqwoken);
1608         }
1609
1610         spin_lock_irqsave(&priv->driver_lock, flags);
1611         if (priv->cur_cmd_retcode) {
1612                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1613                        priv->cur_cmd_retcode);
1614                 priv->cur_cmd_retcode = 0;
1615                 ret = -1;
1616         }
1617         spin_unlock_irqrestore(&priv->driver_lock, flags);
1618
1619 done:
1620         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1621         return ret;
1622 }
1623 EXPORT_SYMBOL_GPL(lbs_prepare_and_send_command);
1624
1625 /**
1626  *  @brief This function allocates the command buffer and link
1627  *  it to command free queue.
1628  *
1629  *  @param priv         A pointer to struct lbs_private structure
1630  *  @return             0 or -1
1631  */
1632 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1633 {
1634         int ret = 0;
1635         u32 bufsize;
1636         u32 i;
1637         struct cmd_ctrl_node *cmdarray;
1638
1639         lbs_deb_enter(LBS_DEB_HOST);
1640
1641         /* Allocate and initialize the command array */
1642         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1643         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1644                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1645                 ret = -1;
1646                 goto done;
1647         }
1648         priv->cmd_array = cmdarray;
1649
1650         /* Allocate and initialize each command buffer in the command array */
1651         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1652                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1653                 if (!cmdarray[i].cmdbuf) {
1654                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1655                         ret = -1;
1656                         goto done;
1657                 }
1658         }
1659
1660         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1661                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1662                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1663         }
1664         ret = 0;
1665
1666 done:
1667         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1668         return ret;
1669 }
1670
1671 /**
1672  *  @brief This function frees the command buffer.
1673  *
1674  *  @param priv         A pointer to struct lbs_private structure
1675  *  @return             0 or -1
1676  */
1677 int lbs_free_cmd_buffer(struct lbs_private *priv)
1678 {
1679         struct cmd_ctrl_node *cmdarray;
1680         unsigned int i;
1681
1682         lbs_deb_enter(LBS_DEB_HOST);
1683
1684         /* need to check if cmd array is allocated or not */
1685         if (priv->cmd_array == NULL) {
1686                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1687                 goto done;
1688         }
1689
1690         cmdarray = priv->cmd_array;
1691
1692         /* Release shared memory buffers */
1693         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1694                 if (cmdarray[i].cmdbuf) {
1695                         kfree(cmdarray[i].cmdbuf);
1696                         cmdarray[i].cmdbuf = NULL;
1697                 }
1698         }
1699
1700         /* Release cmd_ctrl_node */
1701         if (priv->cmd_array) {
1702                 kfree(priv->cmd_array);
1703                 priv->cmd_array = NULL;
1704         }
1705
1706 done:
1707         lbs_deb_leave(LBS_DEB_HOST);
1708         return 0;
1709 }
1710
1711 /**
1712  *  @brief This function gets a free command node if available in
1713  *  command free queue.
1714  *
1715  *  @param priv         A pointer to struct lbs_private structure
1716  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1717  */
1718 struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1719 {
1720         struct cmd_ctrl_node *tempnode;
1721         unsigned long flags;
1722
1723         lbs_deb_enter(LBS_DEB_HOST);
1724
1725         if (!priv)
1726                 return NULL;
1727
1728         spin_lock_irqsave(&priv->driver_lock, flags);
1729
1730         if (!list_empty(&priv->cmdfreeq)) {
1731                 tempnode = list_first_entry(&priv->cmdfreeq,
1732                                             struct cmd_ctrl_node, list);
1733                 list_del(&tempnode->list);
1734         } else {
1735                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1736                 tempnode = NULL;
1737         }
1738
1739         spin_unlock_irqrestore(&priv->driver_lock, flags);
1740
1741         if (tempnode)
1742                 cleanup_cmdnode(tempnode);
1743
1744         lbs_deb_leave(LBS_DEB_HOST);
1745         return tempnode;
1746 }
1747
1748 /**
1749  *  @brief This function cleans command node.
1750  *
1751  *  @param ptempnode    A pointer to cmdCtrlNode structure
1752  *  @return             n/a
1753  */
1754 static void cleanup_cmdnode(struct cmd_ctrl_node *cmdnode)
1755 {
1756         lbs_deb_enter(LBS_DEB_HOST);
1757
1758         if (!cmdnode)
1759                 return;
1760         cmdnode->cmdwaitqwoken = 1;
1761         wake_up_interruptible(&cmdnode->cmdwait_q);
1762         cmdnode->wait_option = 0;
1763         cmdnode->pdata_buf = NULL;
1764         cmdnode->callback = NULL;
1765         cmdnode->callback_arg = 0;
1766
1767         if (cmdnode->cmdbuf != NULL)
1768                 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1769
1770         lbs_deb_leave(LBS_DEB_HOST);
1771 }
1772
1773 /**
1774  *  @brief This function initializes the command node.
1775  *
1776  *  @param priv         A pointer to struct lbs_private structure
1777  *  @param ptempnode    A pointer to cmd_ctrl_node structure
1778  *  @param wait_option  wait option: wait response or not
1779  *  @param pdata_buf    A pointer to informaion buffer
1780  *  @return             0 or -1
1781  */
1782 void lbs_set_cmd_ctrl_node(struct lbs_private *priv,
1783                     struct cmd_ctrl_node *ptempnode,
1784                     u16 wait_option, void *pdata_buf)
1785 {
1786         lbs_deb_enter(LBS_DEB_HOST);
1787
1788         if (!ptempnode)
1789                 return;
1790
1791         ptempnode->wait_option = wait_option;
1792         ptempnode->pdata_buf = pdata_buf;
1793         ptempnode->callback = NULL;
1794         ptempnode->callback_arg = 0;
1795
1796         lbs_deb_leave(LBS_DEB_HOST);
1797 }
1798
1799 /**
1800  *  @brief This function executes next command in command
1801  *  pending queue. It will put fimware back to PS mode
1802  *  if applicable.
1803  *
1804  *  @param priv     A pointer to struct lbs_private structure
1805  *  @return        0 or -1
1806  */
1807 int lbs_execute_next_command(struct lbs_private *priv)
1808 {
1809         struct cmd_ctrl_node *cmdnode = NULL;
1810         struct cmd_header *cmd;
1811         unsigned long flags;
1812         int ret = 0;
1813
1814         // Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1815         // only caller to us is lbs_thread() and we get even when a
1816         // data packet is received
1817         lbs_deb_enter(LBS_DEB_THREAD);
1818
1819         spin_lock_irqsave(&priv->driver_lock, flags);
1820
1821         if (priv->cur_cmd) {
1822                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1823                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1824                 ret = -1;
1825                 goto done;
1826         }
1827
1828         if (!list_empty(&priv->cmdpendingq)) {
1829                 cmdnode = list_first_entry(&priv->cmdpendingq,
1830                                            struct cmd_ctrl_node, list);
1831         }
1832
1833         spin_unlock_irqrestore(&priv->driver_lock, flags);
1834
1835         if (cmdnode) {
1836                 cmd = cmdnode->cmdbuf;
1837
1838                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1839                         if ((priv->psstate == PS_STATE_SLEEP) ||
1840                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1841                                 lbs_deb_host(
1842                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1843                                        le16_to_cpu(cmd->command),
1844                                        priv->psstate);
1845                                 ret = -1;
1846                                 goto done;
1847                         }
1848                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1849                                      "0x%04x in psstate %d\n",
1850                                      le16_to_cpu(cmd->command), priv->psstate);
1851                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1852                         /*
1853                          * 1. Non-PS command:
1854                          * Queue it. set needtowakeup to TRUE if current state
1855                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1856                          * 2. PS command but not Exit_PS:
1857                          * Ignore it.
1858                          * 3. PS command Exit_PS:
1859                          * Set needtowakeup to TRUE if current state is SLEEP,
1860                          * otherwise send this command down to firmware
1861                          * immediately.
1862                          */
1863                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1864                                 /*  Prepare to send Exit PS,
1865                                  *  this non PS command will be sent later */
1866                                 if ((priv->psstate == PS_STATE_SLEEP)
1867                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1868                                     ) {
1869                                         /* w/ new scheme, it will not reach here.
1870                                            since it is blocked in main_thread. */
1871                                         priv->needtowakeup = 1;
1872                                 } else
1873                                         lbs_ps_wakeup(priv, 0);
1874
1875                                 ret = 0;
1876                                 goto done;
1877                         } else {
1878                                 /*
1879                                  * PS command. Ignore it if it is not Exit_PS.
1880                                  * otherwise send it down immediately.
1881                                  */
1882                                 struct cmd_ds_802_11_ps_mode *psm = (void *)cmd;
1883
1884                                 lbs_deb_host(
1885                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1886                                        psm->action);
1887                                 if (psm->action !=
1888                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1889                                         lbs_deb_host(
1890                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1891                                         list_del(&cmdnode->list);
1892                                         lbs_cleanup_and_insert_cmd(priv, cmdnode);
1893
1894                                         ret = 0;
1895                                         goto done;
1896                                 }
1897
1898                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1899                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1900                                         lbs_deb_host(
1901                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1902                                         list_del(&cmdnode->list);
1903                                         lbs_cleanup_and_insert_cmd(priv, cmdnode);
1904                                         priv->needtowakeup = 1;
1905
1906                                         ret = 0;
1907                                         goto done;
1908                                 }
1909
1910                                 lbs_deb_host(
1911                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1912                         }
1913                 }
1914                 list_del(&cmdnode->list);
1915                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1916                             le16_to_cpu(cmd->command));
1917                 DownloadcommandToStation(priv, cmdnode);
1918         } else {
1919                 /*
1920                  * check if in power save mode, if yes, put the device back
1921                  * to PS mode
1922                  */
1923                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1924                     (priv->psstate == PS_STATE_FULL_POWER) &&
1925                     ((priv->connect_status == LBS_CONNECTED) ||
1926                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1927                         if (priv->secinfo.WPAenabled ||
1928                             priv->secinfo.WPA2enabled) {
1929                                 /* check for valid WPA group keys */
1930                                 if (priv->wpa_mcast_key.len ||
1931                                     priv->wpa_unicast_key.len) {
1932                                         lbs_deb_host(
1933                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1934                                                " go back to PS_SLEEP");
1935                                         lbs_ps_sleep(priv, 0);
1936                                 }
1937                         } else {
1938                                 lbs_deb_host(
1939                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1940                                        "go back to PS_SLEEP");
1941                                 lbs_ps_sleep(priv, 0);
1942                         }
1943                 }
1944         }
1945
1946         ret = 0;
1947 done:
1948         lbs_deb_leave(LBS_DEB_THREAD);
1949         return ret;
1950 }
1951
1952 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1953 {
1954         union iwreq_data iwrq;
1955         u8 buf[50];
1956
1957         lbs_deb_enter(LBS_DEB_WEXT);
1958
1959         memset(&iwrq, 0, sizeof(union iwreq_data));
1960         memset(buf, 0, sizeof(buf));
1961
1962         snprintf(buf, sizeof(buf) - 1, "%s", str);
1963
1964         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1965
1966         /* Send Event to upper layer */
1967         lbs_deb_wext("event indication string %s\n", (char *)buf);
1968         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1969         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1970
1971         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1972
1973         lbs_deb_leave(LBS_DEB_WEXT);
1974 }
1975
1976 static int sendconfirmsleep(struct lbs_private *priv, u8 *cmdptr, u16 size)
1977 {
1978         unsigned long flags;
1979         int ret = 0;
1980
1981         lbs_deb_enter(LBS_DEB_HOST);
1982
1983         lbs_deb_host("SEND_SLEEPC_CMD: before download, cmd size %d\n",
1984                size);
1985
1986         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm command", cmdptr, size);
1987
1988         ret = priv->hw_host_to_card(priv, MVMS_CMD, cmdptr, size);
1989         priv->dnld_sent = DNLD_RES_RECEIVED;
1990
1991         spin_lock_irqsave(&priv->driver_lock, flags);
1992         if (priv->intcounter || priv->currenttxskb)
1993                 lbs_deb_host("SEND_SLEEPC_CMD: intcounter %d, currenttxskb %p\n",
1994                        priv->intcounter, priv->currenttxskb);
1995         spin_unlock_irqrestore(&priv->driver_lock, flags);
1996
1997         if (ret) {
1998                 lbs_pr_alert(
1999                        "SEND_SLEEPC_CMD: Host to Card failed for Confirm Sleep\n");
2000         } else {
2001                 spin_lock_irqsave(&priv->driver_lock, flags);
2002                 if (!priv->intcounter) {
2003                         priv->psstate = PS_STATE_SLEEP;
2004                 } else {
2005                         lbs_deb_host("SEND_SLEEPC_CMD: after sent, intcounter %d\n",
2006                                priv->intcounter);
2007                 }
2008                 spin_unlock_irqrestore(&priv->driver_lock, flags);
2009
2010                 lbs_deb_host("SEND_SLEEPC_CMD: sent confirm sleep\n");
2011         }
2012
2013         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2014         return ret;
2015 }
2016
2017 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
2018 {
2019         lbs_deb_enter(LBS_DEB_HOST);
2020
2021         /*
2022          * PS is currently supported only in Infrastructure mode
2023          * Remove this check if it is to be supported in IBSS mode also
2024          */
2025
2026         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
2027                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
2028
2029         lbs_deb_leave(LBS_DEB_HOST);
2030 }
2031
2032 /**
2033  *  @brief This function sends Exit_PS command to firmware.
2034  *
2035  *  @param priv         A pointer to struct lbs_private structure
2036  *  @param wait_option  wait response or not
2037  *  @return             n/a
2038  */
2039 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
2040 {
2041         __le32 Localpsmode;
2042
2043         lbs_deb_enter(LBS_DEB_HOST);
2044
2045         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
2046
2047         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
2048                               CMD_SUBCMD_EXIT_PS,
2049                               wait_option, 0, &Localpsmode);
2050
2051         lbs_deb_leave(LBS_DEB_HOST);
2052 }
2053
2054 /**
2055  *  @brief This function checks condition and prepares to
2056  *  send sleep confirm command to firmware if ok.
2057  *
2058  *  @param priv         A pointer to struct lbs_private structure
2059  *  @param psmode       Power Saving mode
2060  *  @return             n/a
2061  */
2062 void lbs_ps_confirm_sleep(struct lbs_private *priv, u16 psmode)
2063 {
2064         unsigned long flags =0;
2065         u8 allowed = 1;
2066
2067         lbs_deb_enter(LBS_DEB_HOST);
2068
2069         if (priv->dnld_sent) {
2070                 allowed = 0;
2071                 lbs_deb_host("dnld_sent was set");
2072         }
2073
2074         spin_lock_irqsave(&priv->driver_lock, flags);
2075         if (priv->cur_cmd) {
2076                 allowed = 0;
2077                 lbs_deb_host("cur_cmd was set");
2078         }
2079         if (priv->intcounter > 0) {
2080                 allowed = 0;
2081                 lbs_deb_host("intcounter %d", priv->intcounter);
2082         }
2083         spin_unlock_irqrestore(&priv->driver_lock, flags);
2084
2085         if (allowed) {
2086                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
2087                 sendconfirmsleep(priv, (u8 *) & priv->lbs_ps_confirm_sleep,
2088                                  sizeof(struct PS_CMD_ConfirmSleep));
2089         } else {
2090                 lbs_deb_host("sleep confirm has been delayed\n");
2091         }
2092
2093         lbs_deb_leave(LBS_DEB_HOST);
2094 }
2095
2096
2097 /**
2098  *  @brief Simple callback that copies response back into command
2099  *
2100  *  @param priv         A pointer to struct lbs_private structure
2101  *  @param extra        A pointer to the original command structure for which
2102  *                      'resp' is a response
2103  *  @param resp         A pointer to the command response
2104  *
2105  *  @return             0 on success, error on failure
2106  */
2107 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
2108                      struct cmd_header *resp)
2109 {
2110         struct cmd_header *buf = (void *)extra;
2111         uint16_t copy_len;
2112
2113         lbs_deb_enter(LBS_DEB_CMD);
2114
2115         copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
2116         lbs_deb_cmd("Copying back %u bytes; command response was %u bytes, "
2117                     "copy back buffer was %u bytes\n", copy_len,
2118                     le16_to_cpu(resp->size), le16_to_cpu(buf->size));
2119         memcpy(buf, resp, copy_len);
2120
2121         lbs_deb_leave(LBS_DEB_CMD);
2122         return 0;
2123 }
2124
2125 /**
2126  *  @brief Simple way to call firmware functions
2127  *
2128  *  @param priv         A pointer to struct lbs_private structure
2129  *  @param psmode       one of the many CMD_802_11_xxxx
2130  *  @param cmd          pointer to the parameters structure for above command
2131  *                      (this should not include the command, size, sequence
2132  *                      and result fields from struct cmd_ds_gen)
2133  *  @param cmd_size     size structure pointed to by cmd
2134  *  @param rsp          pointer to an area where the result should be placed
2135  *  @param rsp_size     pointer to the size of the rsp area. If the firmware
2136  *                      returns fewer bytes, then this *rsp_size will be
2137  *                      changed to the actual size.
2138  *  @return             -1 in case of a higher level error, otherwise
2139  *                      the result code from the firmware
2140  */
2141 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2142               struct cmd_header *in_cmd, int in_cmd_size,
2143               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2144               unsigned long callback_arg)
2145 {
2146         struct cmd_ctrl_node *cmdnode;
2147         unsigned long flags;
2148         int ret = 0;
2149
2150         lbs_deb_enter(LBS_DEB_HOST);
2151
2152         if (!priv) {
2153                 lbs_deb_host("PREP_CMD: priv is NULL\n");
2154                 ret = -1;
2155                 goto done;
2156         }
2157
2158         if (priv->surpriseremoved) {
2159                 lbs_deb_host("PREP_CMD: card removed\n");
2160                 ret = -1;
2161                 goto done;
2162         }
2163
2164         cmdnode = lbs_get_cmd_ctrl_node(priv);
2165         if (cmdnode == NULL) {
2166                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2167
2168                 /* Wake up main thread to execute next command */
2169                 wake_up_interruptible(&priv->waitq);
2170                 ret = -1;
2171                 goto done;
2172         }
2173
2174         cmdnode->wait_option = CMD_OPTION_WAITFORRSP;
2175         cmdnode->callback = callback;
2176         cmdnode->callback_arg = callback_arg;
2177
2178         /* Copy the incoming command to the buffer */
2179         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2180
2181         /* Set sequence number, clean result, move to buffer */
2182         priv->seqnum++;
2183         cmdnode->cmdbuf->command = cpu_to_le16(command);
2184         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2185         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2186         cmdnode->cmdbuf->result  = 0;
2187
2188         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2189
2190         /* here was the big old switch() statement, which is now obsolete,
2191          * because the caller of lbs_cmd() sets up all of *cmd for us. */
2192
2193         cmdnode->cmdwaitqwoken = 0;
2194         lbs_queue_cmd(priv, cmdnode, 1);
2195         wake_up_interruptible(&priv->waitq);
2196
2197         might_sleep();
2198         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2199
2200         spin_lock_irqsave(&priv->driver_lock, flags);
2201         if (priv->cur_cmd_retcode) {
2202                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
2203                        priv->cur_cmd_retcode);
2204                 priv->cur_cmd_retcode = 0;
2205                 ret = -1;
2206         }
2207         spin_unlock_irqrestore(&priv->driver_lock, flags);
2208
2209 done:
2210         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2211         return ret;
2212 }
2213 EXPORT_SYMBOL_GPL(__lbs_cmd);
2214
2215