core/rtw_wlan_util.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  *
  19  ******************************************************************************/
  20 #define _RTW_WLAN_UTIL_C_
  21
  22 #include <drv_conf.h>
  23 #include <osdep_service.h>
  24 #include <drv_types.h>
  25 #include <linux/ieee80211.h>
  26 #include <wifi.h>
  27
  28 unsigned char ARTHEROS_OUI1[] = {0x00, 0x03, 0x7f};
  29 unsigned char ARTHEROS_OUI2[] = {0x00, 0x13, 0x74};
  30
  31 unsigned char BROADCOM_OUI1[] = {0x00, 0x10, 0x18};
  32 unsigned char BROADCOM_OUI2[] = {0x00, 0x0a, 0xf7};
  33 unsigned char BROADCOM_OUI3[] = {0x00, 0x05, 0xb5};
  34
  35 unsigned char CISCO_OUI[] = {0x00, 0x40, 0x96};
  36 unsigned char MARVELL_OUI[] = {0x00, 0x50, 0x43};
  37 unsigned char RALINK_OUI[] = {0x00, 0x0c, 0x43};
  38 unsigned char REALTEK_OUI[] = {0x00, 0xe0, 0x4c};
  39 unsigned char AIRGOCAP_OUI[] = {0x00, 0x0a, 0xf5};
  40 unsigned char EPIGRAM_OUI[] = {0x00, 0x90, 0x4c};
  41
  42 unsigned char REALTEK_96B_IE[] = {0x00, 0xe0, 0x4c, 0x02, 0x01, 0x20};
  43
  44 extern unsigned char    MCS_rate_2R[16];
  45 #ifdef CONFIG_DISABLE_MCS13TO15
  46 extern unsigned char    MCS_rate_2R_MCS13TO15_OFF[16];
  47 #endif /* CONFIG_DISABLE_MCS13TO15 */
  48 extern unsigned char    MCS_rate_1R[16];
  49 extern unsigned char RTW_WPA_OUI[];
  50 extern unsigned char WPA_TKIP_CIPHER[4];
  51 extern unsigned char RSN_TKIP_CIPHER[4];
  52
  53 #define R2T_PHY_DELAY   (0)
  54
  55 /* define WAIT_FOR_BCN_TO_MIN   (3000) */
  56 #define WAIT_FOR_BCN_TO_MIN     (6000)
  57 #define WAIT_FOR_BCN_TO_MAX     (20000)
  58
  59 static u8 rtw_basic_rate_cck[4] = {
  60         IEEE80211_CCK_RATE_1MB|IEEE80211_BASIC_RATE_MASK, IEEE80211_CCK_RATE_2MB|IEEE80211_BASIC_RATE_MASK,
  61         IEEE80211_CCK_RATE_5MB|IEEE80211_BASIC_RATE_MASK, IEEE80211_CCK_RATE_11MB|IEEE80211_BASIC_RATE_MASK
  62 };
  63
  64 static u8 rtw_basic_rate_ofdm[3] = {
  65         IEEE80211_OFDM_RATE_6MB|IEEE80211_BASIC_RATE_MASK, IEEE80211_OFDM_RATE_12MB|IEEE80211_BASIC_RATE_MASK,
  66         IEEE80211_OFDM_RATE_24MB|IEEE80211_BASIC_RATE_MASK
  67 };
  68
  69 static u8 rtw_basic_rate_mix[7] = {
  70         IEEE80211_CCK_RATE_1MB|IEEE80211_BASIC_RATE_MASK, IEEE80211_CCK_RATE_2MB|IEEE80211_BASIC_RATE_MASK,
  71         IEEE80211_CCK_RATE_5MB|IEEE80211_BASIC_RATE_MASK, IEEE80211_CCK_RATE_11MB|IEEE80211_BASIC_RATE_MASK,
  72         IEEE80211_OFDM_RATE_6MB|IEEE80211_BASIC_RATE_MASK, IEEE80211_OFDM_RATE_12MB|IEEE80211_BASIC_RATE_MASK,
  73         IEEE80211_OFDM_RATE_24MB|IEEE80211_BASIC_RATE_MASK
  74 };
  75
  76 int cckrates_included(unsigned char *rate, int ratelen)
  77 {
  78         int     i;
  79
  80         for(i = 0; i < ratelen; i++)
  81         {
  82                 if  (  (((rate[i]) & 0x7f) == 2)        || (((rate[i]) & 0x7f) == 4) ||
  83                            (((rate[i]) & 0x7f) == 11)  || (((rate[i]) & 0x7f) == 22) )
  84                 return _TRUE;
  85         }
  86
  87         return _FALSE;
  88 }
  89
  90 int cckratesonly_included(unsigned char *rate, int ratelen)
  91 {
  92         int     i;
  93
  94         for(i = 0; i < ratelen; i++)
  95         {
  96                 if  ( (((rate[i]) & 0x7f) != 2) && (((rate[i]) & 0x7f) != 4) &&
  97                            (((rate[i]) & 0x7f) != 11)  && (((rate[i]) & 0x7f) != 22) )
  98                 return _FALSE;
  99         }
 100
 101         return _TRUE;
 102 }
 103
 104 unsigned char networktype_to_raid(unsigned char network_type)
 105 {
 106         unsigned char raid;
 107
 108         switch(network_type)
 109         {
 110                 case WIRELESS_11B:
 111                         raid = RATR_INX_WIRELESS_B;
 112                         break;
 113                 case WIRELESS_11A:
 114                 case WIRELESS_11G:
 115                         raid = RATR_INX_WIRELESS_G;
 116                         break;
 117                 case WIRELESS_11BG:
 118                         raid = RATR_INX_WIRELESS_GB;
 119                         break;
 120                 case WIRELESS_11_24N:
 121                 case WIRELESS_11_5N:
 122                         raid = RATR_INX_WIRELESS_N;
 123                         break;
 124                 case WIRELESS_11A_5N:
 125                 case WIRELESS_11G_24N:
 126                         raid = RATR_INX_WIRELESS_NG;
 127                         break;
 128                 case WIRELESS_11BG_24N:
 129                         raid = RATR_INX_WIRELESS_NGB;
 130                         break;
 131                 default:
 132                         raid = RATR_INX_WIRELESS_GB;
 133                         break;
 134
 135         }
 136
 137         return raid;
 138 }
 139
 140 u8 judge_network_type(_adapter *padapter, unsigned char *rate, int ratelen)
 141 {
 142         u8 network_type = 0;
 143         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
 144         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 145
 146         if(pmlmeext->cur_channel > 14)
 147         {
 148                 if (pmlmeinfo->HT_enable)
 149                 {
 150                         network_type = WIRELESS_11_5N;
 151                 }
 152
 153                 network_type |= WIRELESS_11A;
 154         }
 155         else
 156         {
 157                 if (pmlmeinfo->HT_enable)
 158                 {
 159                         network_type = WIRELESS_11_24N;
 160                 }
 161
 162                 if ((cckratesonly_included(rate, ratelen)) == _TRUE)
 163                 {
 164                         network_type |= WIRELESS_11B;
 165                 }
 166                 else if((cckrates_included(rate, ratelen)) == _TRUE)
 167                 {
 168                         network_type |= WIRELESS_11BG;
 169                 }
 170                 else
 171                 {
 172                         network_type |= WIRELESS_11G;
 173                 }
 174         }
 175
 176         return  network_type;
 177 }
 178
 179 unsigned char ratetbl_val_2wifirate(unsigned char rate);
 180 unsigned char ratetbl_val_2wifirate(unsigned char rate)
 181 {
 182         unsigned char val = 0;
 183
 184         switch (rate & 0x7f)
 185         {
 186                 case 0:
 187                         val = IEEE80211_CCK_RATE_1MB;
 188                         break;
 189
 190                 case 1:
 191                         val = IEEE80211_CCK_RATE_2MB;
 192                         break;
 193
 194                 case 2:
 195                         val = IEEE80211_CCK_RATE_5MB;
 196                         break;
 197
 198                 case 3:
 199                         val = IEEE80211_CCK_RATE_11MB;
 200                         break;
 201
 202                 case 4:
 203                         val = IEEE80211_OFDM_RATE_6MB;
 204                         break;
 205
 206                 case 5:
 207                         val = IEEE80211_OFDM_RATE_9MB;
 208                         break;
 209
 210                 case 6:
 211                         val = IEEE80211_OFDM_RATE_12MB;
 212                         break;
 213
 214                 case 7:
 215                         val = IEEE80211_OFDM_RATE_18MB;
 216                         break;
 217
 218                 case 8:
 219                         val = IEEE80211_OFDM_RATE_24MB;
 220                         break;
 221
 222                 case 9:
 223                         val = IEEE80211_OFDM_RATE_36MB;
 224                         break;
 225
 226                 case 10:
 227                         val = IEEE80211_OFDM_RATE_48MB;
 228                         break;
 229
 230                 case 11:
 231                         val = IEEE80211_OFDM_RATE_54MB;
 232                         break;
 233
 234         }
 235
 236         return val;
 237 }
 238
 239 int is_basicrate(_adapter *padapter, unsigned char rate);
 240 int is_basicrate(_adapter *padapter, unsigned char rate)
 241 {
 242         int i;
 243         unsigned char val;
 244         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 245
 246         for(i = 0; i < NumRates; i++)
 247         {
 248                 val = pmlmeext->basicrate[i];
 249
 250                 if ((val != 0xff) && (val != 0xfe))
 251                 {
 252                         if (rate == ratetbl_val_2wifirate(val))
 253                         {
 254                                 return _TRUE;
 255                         }
 256                 }
 257         }
 258
 259         return _FALSE;
 260 }
 261
 262 unsigned int ratetbl2rateset(_adapter *padapter, unsigned char *rateset);
 263 unsigned int ratetbl2rateset(_adapter *padapter, unsigned char *rateset)
 264 {
 265         int i;
 266         unsigned char rate;
 267         unsigned int    len = 0;
 268         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 269
 270         for (i = 0; i < NumRates; i++)
 271         {
 272                 rate = pmlmeext->datarate[i];
 273
 274                 switch (rate)
 275                 {
 276                         case 0xff:
 277                                 return len;
 278
 279                         case 0xfe:
 280                                 continue;
 281
 282                         default:
 283                                 rate = ratetbl_val_2wifirate(rate);
 284
 285                                 if (is_basicrate(padapter, rate) == _TRUE)
 286                                 {
 287                                         rate |= IEEE80211_BASIC_RATE_MASK;
 288                                 }
 289
 290                                 rateset[len] = rate;
 291                                 len++;
 292                                 break;
 293                 }
 294         }
 295         return len;
 296 }
 297
 298 void get_rate_set(_adapter *padapter, unsigned char *pbssrate, int *bssrate_len)
 299 {
 300         unsigned char supportedrates[NumRates];
 301
 302         memset(supportedrates, 0, NumRates);
 303         *bssrate_len = ratetbl2rateset(padapter, supportedrates);
 304         memcpy(pbssrate, supportedrates, *bssrate_len);
 305 }
 306
 307 void UpdateBrateTbl(
 308         IN PADAPTER             Adapter,
 309         IN u8                   *mBratesOS
 310 )
 311 {
 312         u8      i;
 313         u8      rate;
 314
 315         /*  1M, 2M, 5.5M, 11M, 6M, 12M, 24M are mandatory. */
 316         for(i=0;i<NDIS_802_11_LENGTH_RATES_EX;i++)
 317         {
 318                 rate = mBratesOS[i] & 0x7f;
 319                 switch(rate)
 320                 {
 321                         case IEEE80211_CCK_RATE_1MB:
 322                         case IEEE80211_CCK_RATE_2MB:
 323                         case IEEE80211_CCK_RATE_5MB:
 324                         case IEEE80211_CCK_RATE_11MB:
 325                         case IEEE80211_OFDM_RATE_6MB:
 326                         case IEEE80211_OFDM_RATE_12MB:
 327                         case IEEE80211_OFDM_RATE_24MB:
 328                                 mBratesOS[i] |= IEEE80211_BASIC_RATE_MASK;
 329                                 break;
 330                 }
 331         }
 332 }
 333
 334 void UpdateBrateTblForSoftAP(u8 *bssrateset, u32 bssratelen)
 335 {
 336         u8      i;
 337         u8      rate;
 338
 339         for(i=0;i<bssratelen;i++)
 340         {
 341                 rate = bssrateset[i] & 0x7f;
 342                 switch(rate)
 343                 {
 344                         case IEEE80211_CCK_RATE_1MB:
 345                         case IEEE80211_CCK_RATE_2MB:
 346                         case IEEE80211_CCK_RATE_5MB:
 347                         case IEEE80211_CCK_RATE_11MB:
 348                                 bssrateset[i] |= IEEE80211_BASIC_RATE_MASK;
 349                                 break;
 350                 }
 351         }
 352 }
 353
 354 void Save_DM_Func_Flag(_adapter *padapter)
 355 {
 356         u8      bSaveFlag = _TRUE;
 357
 358 #ifdef CONFIG_CONCURRENT_MODE
 359         _adapter *pbuddy_adapter = padapter->pbuddy_adapter;
 360         if(pbuddy_adapter)
 361         rtw_hal_set_hwreg(pbuddy_adapter, HW_VAR_DM_FUNC_OP, (u8 *)(&bSaveFlag));
 362 #endif
 363
 364         rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_OP, (u8 *)(&bSaveFlag));
 365 }
 366
 367 void Restore_DM_Func_Flag(_adapter *padapter)
 368 {
 369         u8      bSaveFlag = _FALSE;
 370 #ifdef CONFIG_CONCURRENT_MODE
 371         _adapter *pbuddy_adapter = padapter->pbuddy_adapter;
 372         if(pbuddy_adapter)
 373         rtw_hal_set_hwreg(pbuddy_adapter, HW_VAR_DM_FUNC_OP, (u8 *)(&bSaveFlag));
 374 #endif
 375         rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_OP, (u8 *)(&bSaveFlag));
 376 }
 377
 378 void Switch_DM_Func(_adapter *padapter, u32 mode, u8 enable)
 379 {
 380 #ifdef CONFIG_CONCURRENT_MODE
 381         _adapter *pbuddy_adapter = padapter->pbuddy_adapter;
 382 #endif
 383
 384         if(enable == _TRUE)
 385         {
 386 #ifdef CONFIG_CONCURRENT_MODE
 387                 if(pbuddy_adapter)
 388                 rtw_hal_set_hwreg(pbuddy_adapter, HW_VAR_DM_FUNC_SET, (u8 *)(&mode));
 389 #endif
 390                 rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_SET, (u8 *)(&mode));
 391         }
 392         else
 393         {
 394 #ifdef CONFIG_CONCURRENT_MODE
 395                 if(pbuddy_adapter)
 396                 rtw_hal_set_hwreg(pbuddy_adapter, HW_VAR_DM_FUNC_CLR, (u8 *)(&mode));
 397 #endif
 398                 rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_CLR, (u8 *)(&mode));
 399         }
 400 }
 401
 402 static void Set_NETYPE1_MSR(_adapter *padapter, u8 type)
 403 {
 404         rtw_hal_set_hwreg(padapter, HW_VAR_MEDIA_STATUS1, (u8 *)(&type));
 405 }
 406
 407 static void Set_NETYPE0_MSR(_adapter *padapter, u8 type)
 408 {
 409         rtw_hal_set_hwreg(padapter, HW_VAR_MEDIA_STATUS, (u8 *)(&type));
 410 }
 411
 412 void Set_MSR(_adapter *padapter, u8 type)
 413 {
 414 #ifdef CONFIG_CONCURRENT_MODE
 415         if(padapter->iface_type == IFACE_PORT1)
 416         {
 417                 Set_NETYPE1_MSR(padapter, type);
 418         }
 419         else
 420 #endif
 421         {
 422                 Set_NETYPE0_MSR(padapter, type);
 423         }
 424 }
 425
 426 inline u8 rtw_get_oper_ch(_adapter *adapter)
 427 {
 428         return adapter_to_dvobj(adapter)->oper_channel;
 429 }
 430
 431 inline void rtw_set_oper_ch(_adapter *adapter, u8 ch)
 432 {
 433         adapter_to_dvobj(adapter)->oper_channel = ch;
 434 }
 435
 436 inline u8 rtw_get_oper_bw(_adapter *adapter)
 437 {
 438         return adapter_to_dvobj(adapter)->oper_bwmode;
 439 }
 440
 441 inline void rtw_set_oper_bw(_adapter *adapter, u8 bw)
 442 {
 443         adapter_to_dvobj(adapter)->oper_bwmode = bw;
 444 }
 445
 446 inline u8 rtw_get_oper_choffset(_adapter *adapter)
 447 {
 448         return adapter_to_dvobj(adapter)->oper_ch_offset;
 449 }
 450
 451 inline void rtw_set_oper_choffset(_adapter *adapter, u8 offset)
 452 {
 453         adapter_to_dvobj(adapter)->oper_ch_offset = offset;
 454 }
 455
 456 void SelectChannel(_adapter *padapter, unsigned char channel)
 457 {
 458         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 459
 460 #ifdef CONFIG_DUALMAC_CONCURRENT
 461         /* saved channel info */
 462         rtw_set_oper_ch(padapter, channel);
 463         dc_SelectChannel(padapter, channel);
 464 #else /* CONFIG_DUALMAC_CONCURRENT */
 465
 466         _enter_critical_mutex(&(adapter_to_dvobj(padapter)->setch_mutex), NULL);
 467
 468         /* saved channel info */
 469         rtw_set_oper_ch(padapter, channel);
 470
 471         rtw_hal_set_chan(padapter, channel);
 472
 473         _exit_critical_mutex(&(adapter_to_dvobj(padapter)->setch_mutex), NULL);
 474
 475 #endif /*  CONFIG_DUALMAC_CONCURRENT */
 476 }
 477
 478 void SetBWMode(_adapter *padapter, unsigned short bwmode, unsigned char channel_offset)
 479 {
 480         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 481
 482 #ifdef CONFIG_DUALMAC_CONCURRENT
 483         /* saved bw info */
 484         rtw_set_oper_bw(padapter, bwmode);
 485         rtw_set_oper_choffset(padapter, channel_offset);
 486         dc_SetBWMode(padapter, bwmode, channel_offset);
 487 #else /* CONFIG_DUALMAC_CONCURRENT */
 488
 489         _enter_critical_mutex(&(adapter_to_dvobj(padapter)->setbw_mutex), NULL);
 490
 491         /* saved bw info */
 492         rtw_set_oper_bw(padapter, bwmode);
 493         rtw_set_oper_choffset(padapter, channel_offset);
 494
 495         rtw_hal_set_bwmode(padapter, (HT_CHANNEL_WIDTH)bwmode, channel_offset);
 496
 497         _exit_critical_mutex(&(adapter_to_dvobj(padapter)->setbw_mutex), NULL);
 498
 499 #endif /*  CONFIG_DUALMAC_CONCURRENT */
 500 }
 501
 502 void set_channel_bwmode(_adapter *padapter, unsigned char channel, unsigned char channel_offset, unsigned short bwmode)
 503 {
 504         u8 center_ch;
 505         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 506
 507         if ( padapter->bNotifyChannelChange )
 508         {
 509                 DBG_8723A( "[%s] ch = %d, offset = %d, bwmode = %d\n", __FUNCTION__, channel, channel_offset, bwmode );
 510         }
 511
 512         if((bwmode == HT_CHANNEL_WIDTH_20)||(channel_offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE))
 513         {
 514                 /* SelectChannel(padapter, channel); */
 515                 center_ch = channel;
 516         }
 517         else
 518         {
 519                 /* switch to the proper channel */
 520                 if (channel_offset == HAL_PRIME_CHNL_OFFSET_LOWER)
 521                 {
 522                         /* SelectChannel(padapter, channel + 2); */
 523                         center_ch = channel + 2;
 524                 }
 525                 else
 526                 {
 527                         /* SelectChannel(padapter, channel - 2); */
 528                         center_ch = channel - 2;
 529                 }
 530         }
 531
 532         /* set Channel */
 533 #ifdef CONFIG_DUALMAC_CONCURRENT
 534         /* saved channel/bw info */
 535         rtw_set_oper_ch(padapter, channel);
 536         rtw_set_oper_bw(padapter, bwmode);
 537         rtw_set_oper_choffset(padapter, channel_offset);
 538         dc_SelectChannel(padapter, center_ch);/*  set center channel */
 539 #else /* CONFIG_DUALMAC_CONCURRENT */
 540
 541         _enter_critical_mutex(&(adapter_to_dvobj(padapter)->setch_mutex), NULL);
 542
 543         /* saved channel/bw info */
 544         rtw_set_oper_ch(padapter, channel);
 545         rtw_set_oper_bw(padapter, bwmode);
 546         rtw_set_oper_choffset(padapter, channel_offset);
 547
 548         rtw_hal_set_chan(padapter, center_ch); /*  set center channel */
 549
 550         _exit_critical_mutex(&(adapter_to_dvobj(padapter)->setch_mutex), NULL);
 551
 552 #endif /*  CONFIG_DUALMAC_CONCURRENT */
 553
 554         SetBWMode(padapter, bwmode, channel_offset);
 555 }
 556
 557 int get_bsstype(unsigned short capability)
 558 {
 559         if (capability & BIT(0))
 560         {
 561                 return WIFI_FW_AP_STATE;
 562         }
 563         else if (capability & BIT(1))
 564         {
 565                 return WIFI_FW_ADHOC_STATE;
 566         }
 567         else
 568         {
 569                 return 0;
 570         }
 571 }
 572
 573 __inline u8 *get_my_bssid(WLAN_BSSID_EX *pnetwork)
 574 {
 575         return (pnetwork->MacAddress);
 576 }
 577
 578 u16 get_beacon_interval(WLAN_BSSID_EX *bss)
 579 {
 580         unsigned short val;
 581         memcpy((unsigned char *)&val, rtw_get_beacon_interval_from_ie(bss->IEs), 2);
 582
 583         return le16_to_cpu(val);
 584 }
 585
 586 int is_client_associated_to_ap(_adapter *padapter)
 587 {
 588         struct mlme_ext_priv    *pmlmeext;
 589         struct mlme_ext_info    *pmlmeinfo;
 590
 591         if(!padapter)
 592                 return _FAIL;
 593
 594         pmlmeext = &padapter->mlmeextpriv;
 595         pmlmeinfo = &(pmlmeext->mlmext_info);
 596
 597         if ((pmlmeinfo->state & WIFI_FW_ASSOC_SUCCESS) && ((pmlmeinfo->state&0x03) == WIFI_FW_STATION_STATE))
 598         {
 599                 return _TRUE;
 600         }
 601         else
 602         {
 603                 return _FAIL;
 604         }
 605 }
 606
 607 int is_client_associated_to_ibss(_adapter *padapter)
 608 {
 609         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
 610         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 611
 612         if ((pmlmeinfo->state & WIFI_FW_ASSOC_SUCCESS) && ((pmlmeinfo->state&0x03) == WIFI_FW_ADHOC_STATE))
 613         {
 614                 return _TRUE;
 615         }
 616         else
 617         {
 618                 return _FAIL;
 619         }
 620 }
 621
 622 int is_IBSS_empty(_adapter *padapter)
 623 {
 624         unsigned int i;
 625         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
 626         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 627
 628         for (i = IBSS_START_MAC_ID; i < NUM_STA; i++)
 629         {
 630                 if (pmlmeinfo->FW_sta_info[i].status == 1)
 631                 {
 632                         return _FAIL;
 633                 }
 634         }
 635
 636         return _TRUE;
 637 }
 638
 639 unsigned int decide_wait_for_beacon_timeout(unsigned int bcn_interval)
 640 {
 641         if ((bcn_interval << 2) < WAIT_FOR_BCN_TO_MIN)
 642         {
 643                 return WAIT_FOR_BCN_TO_MIN;
 644         }
 645         else if ((bcn_interval << 2) > WAIT_FOR_BCN_TO_MAX)
 646         {
 647                 return WAIT_FOR_BCN_TO_MAX;
 648         }
 649         else
 650         {
 651                 return ((bcn_interval << 2));
 652         }
 653 }
 654
 655 void CAM_empty_entry(
 656         PADAPTER        Adapter,
 657         u8                      ucIndex
 658 )
 659 {
 660         rtw_hal_set_hwreg(Adapter, HW_VAR_CAM_EMPTY_ENTRY, (u8 *)(&ucIndex));
 661 }
 662
 663 void invalidate_cam_all(_adapter *padapter)
 664 {
 665         rtw_hal_set_hwreg(padapter, HW_VAR_CAM_INVALID_ALL, 0);
 666 }
 667
 668 void write_cam(_adapter *padapter, u8 entry, u16 ctrl, u8 *mac, u8 *key)
 669 {
 670         unsigned int    i, val, addr;
 671         /* unsigned int    cmd; */
 672         int j;
 673         u32     cam_val[2];
 674
 675         addr = entry << 3;
 676
 677         for (j = 5; j >= 0; j--)
 678         {
 679                 switch (j)
 680                 {
 681                         case 0:
 682                                 val = (ctrl | (mac[0] << 16) | (mac[1] << 24) );
 683                                 break;
 684
 685                         case 1:
 686                                 val = (mac[2] | ( mac[3] << 8) | (mac[4] << 16) | (mac[5] << 24));
 687                                 break;
 688
 689                         default:
 690                                 i = (j - 2) << 2;
 691                                 val = (key[i] | (key[i+1] << 8) | (key[i+2] << 16) | (key[i+3] << 24));
 692                                 break;
 693
 694                 }
 695
 696                 cam_val[0] = val;
 697                 cam_val[1] = addr + (unsigned int)j;
 698
 699                 rtw_hal_set_hwreg(padapter, HW_VAR_CAM_WRITE, (u8 *)cam_val);
 700
 701                 /* rtw_write32(padapter, WCAMI, val); */
 702
 703                 /* cmd = CAM_POLLINIG | CAM_WRITE | (addr + j); */
 704                 /* rtw_write32(padapter, RWCAM, cmd); */
 705
 706                 /* DBG_8723A("%s=> cam write: %x, %x\n",__FUNCTION__, cmd, val); */
 707
 708         }
 709 }
 710
 711 void clear_cam_entry(_adapter *padapter, u8 entry)
 712 {
 713         unsigned char null_sta[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 714
 715         unsigned char null_key[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00};
 716
 717         write_cam(padapter, entry, 0, null_sta, null_key);
 718 }
 719
 720 int allocate_fw_sta_entry(_adapter *padapter)
 721 {
 722         unsigned int mac_id;
 723         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
 724         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 725
 726         for (mac_id = IBSS_START_MAC_ID; mac_id < NUM_STA; mac_id++)
 727         {
 728                 if (pmlmeinfo->FW_sta_info[mac_id].status == 0)
 729                 {
 730                         pmlmeinfo->FW_sta_info[mac_id].status = 1;
 731                         pmlmeinfo->FW_sta_info[mac_id].retry = 0;
 732                         break;
 733                 }
 734         }
 735
 736         return mac_id;
 737 }
 738
 739 void flush_all_cam_entry(_adapter *padapter)
 740 {
 741         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
 742         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 743
 744 #ifdef CONFIG_CONCURRENT_MODE
 745
 746         struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
 747
 748         /* if(check_buddy_mlmeinfo_state(padapter, _HW_STATE_NOLINK_)) */
 749         if(check_buddy_fwstate(padapter, _FW_LINKED) == _FALSE)
 750         {
 751                 rtw_hal_set_hwreg(padapter, HW_VAR_CAM_INVALID_ALL, 0);
 752         }
 753         else
 754         {
 755                 if(check_fwstate(pmlmepriv, WIFI_STATION_STATE))
 756                 {
 757                         struct sta_priv *pstapriv = &padapter->stapriv;
 758                         struct sta_info *psta;
 759                         u8 cam_id;/* cam_entry */
 760
 761                         psta = rtw_get_stainfo(pstapriv, pmlmeinfo->network.MacAddress);
 762                         if(psta) {
 763                                 if(psta->state & WIFI_AP_STATE)
 764                                 {}   /* clear cam when ap free per sta_info */
 765                                 else {
 766                                         if(psta->mac_id==2)
 767                                                 cam_id = 5;
 768                                         else
 769                                                 cam_id = 4;
 770                                 }
 771                                 /* clear_cam_entry(padapter, cam_id); */
 772                                 rtw_clearstakey_cmd(padapter, (u8*)psta, cam_id, _FALSE);
 773                         }
 774                 }
 775                 else if(check_fwstate(pmlmepriv, WIFI_AP_STATE) == _TRUE)
 776                 {
 777                         /* clear cam when ap free per sta_info */
 778                 }
 779         }
 780 #else /* CONFIG_CONCURRENT_MODE */
 781
 782         rtw_hal_set_hwreg(padapter, HW_VAR_CAM_INVALID_ALL, 0);
 783
 784 #endif /* CONFIG_CONCURRENT_MODE */
 785
 786         memset((u8 *)(pmlmeinfo->FW_sta_info), 0, sizeof(pmlmeinfo->FW_sta_info));
 787 }
 788
 789 #if defined(CONFIG_P2P) && defined(CONFIG_WFD)
 790 int WFD_info_handler(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs      pIE)
 791 {
 792         struct registry_priv    *pregpriv = &padapter->registrypriv;
 793         struct mlme_priv        *pmlmepriv = &(padapter->mlmepriv);
 794         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
 795         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 796         struct wifidirect_info  *pwdinfo;
 797         u8      wfd_ie[ 128 ] = { 0x00 };
 798         u32     wfd_ielen = 0;
 799
 800         pwdinfo = &padapter->wdinfo;
 801         if ( rtw_get_wfd_ie( ( u8* ) pIE, pIE->Length, wfd_ie, &wfd_ielen ) )
 802         {
 803                 u8      attr_content[ 10 ] = { 0x00 };
 804                 u32     attr_contentlen = 0;
 805
 806                 DBG_8723A( "[%s] Found WFD IE\n", __FUNCTION__ );
 807                 rtw_get_wfd_attr_content( wfd_ie, wfd_ielen, WFD_ATTR_DEVICE_INFO, attr_content, &attr_contentlen);
 808                 if ( attr_contentlen )
 809                 {
 810                         pwdinfo->wfd_info->peer_rtsp_ctrlport = RTW_GET_BE16( attr_content + 2 );
 811                         DBG_8723A( "[%s] Peer PORT NUM = %d\n", __FUNCTION__, pwdinfo->wfd_info->peer_rtsp_ctrlport );
 812                         return( _TRUE );
 813                 }
 814         }
 815         else
 816         {
 817                 DBG_8723A( "[%s] NO WFD IE\n", __FUNCTION__ );
 818
 819         }
 820         return( _FAIL );
 821 }
 822 #endif
 823
 824 int WMM_param_handler(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs     pIE)
 825 {
 826         /* struct registry_priv *pregpriv = &padapter->registrypriv; */
 827         struct mlme_priv        *pmlmepriv = &(padapter->mlmepriv);
 828         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
 829         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 830
 831         if(pmlmepriv->qospriv.qos_option==0)
 832         {
 833                 pmlmeinfo->WMM_enable = 0;
 834                 return _FAIL;
 835         }
 836
 837         pmlmeinfo->WMM_enable = 1;
 838         memcpy(&(pmlmeinfo->WMM_param), (pIE->data + 6), sizeof(struct WMM_para_element));
 839         return _TRUE;
 840 }
 841
 842 void WMMOnAssocRsp(_adapter *padapter)
 843 {
 844         u8      ACI, ACM, AIFS, ECWMin, ECWMax, aSifsTime;
 845         u8      acm_mask;
 846         u16     TXOP;
 847         u32     acParm, i;
 848         u32     edca[4], inx[4];
 849         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
 850         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 851         struct xmit_priv                *pxmitpriv = &padapter->xmitpriv;
 852         struct registry_priv    *pregpriv = &padapter->registrypriv;
 853
 854         if (pmlmeinfo->WMM_enable == 0)
 855         {
 856                 padapter->mlmepriv.acm_mask = 0;
 857                 return;
 858         }
 859
 860         acm_mask = 0;
 861
 862         if( pmlmeext->cur_wireless_mode == WIRELESS_11B)
 863                 aSifsTime = 10;
 864         else
 865                 aSifsTime = 16;
 866
 867         for (i = 0; i < 4; i++)
 868         {
 869                 ACI = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN >> 5) & 0x03;
 870                 ACM = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN >> 4) & 0x01;
 871
 872                 /* AIFS = AIFSN * slot time + SIFS - r2t phy delay */
 873                 AIFS = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN & 0x0f) * pmlmeinfo->slotTime + aSifsTime;
 874
 875                 ECWMin = (pmlmeinfo->WMM_param.ac_param[i].CW & 0x0f);
 876                 ECWMax = (pmlmeinfo->WMM_param.ac_param[i].CW & 0xf0) >> 4;
 877                 TXOP = le16_to_cpu(pmlmeinfo->WMM_param.ac_param[i].TXOP_limit);
 878
 879                 acParm = AIFS | (ECWMin << 8) | (ECWMax << 12) | (TXOP << 16);
 880
 881                 switch (ACI)
 882                 {
 883                         case 0x0:
 884                                 rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BE, (u8 *)(&acParm));
 885                                 acm_mask |= (ACM? BIT(1):0);
 886                                 edca[XMIT_BE_QUEUE] = acParm;
 887                                 break;
 888
 889                         case 0x1:
 890                                 rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BK, (u8 *)(&acParm));
 891                                 /* acm_mask |= (ACM? BIT(0):0); */
 892                                 edca[XMIT_BK_QUEUE] = acParm;
 893                                 break;
 894
 895                         case 0x2:
 896                                 rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VI, (u8 *)(&acParm));
 897                                 acm_mask |= (ACM? BIT(2):0);
 898                                 edca[XMIT_VI_QUEUE] = acParm;
 899                                 break;
 900
 901                         case 0x3:
 902                                 rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VO, (u8 *)(&acParm));
 903                                 acm_mask |= (ACM? BIT(3):0);
 904                                 edca[XMIT_VO_QUEUE] = acParm;
 905                                 break;
 906                 }
 907
 908                 DBG_8723A("WMM(%x): %x, %x\n", ACI, ACM, acParm);
 909         }
 910
 911         if(padapter->registrypriv.acm_method == 1)
 912                 rtw_hal_set_hwreg(padapter, HW_VAR_ACM_CTRL, (u8 *)(&acm_mask));
 913         else
 914                 padapter->mlmepriv.acm_mask = acm_mask;
 915
 916         inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3;
 917
 918         if(pregpriv->wifi_spec==1)
 919         {
 920                 u32     j, tmp, change_inx;
 921
 922                 /* entry indx: 0->vo, 1->vi, 2->be, 3->bk. */
 923                 for(i=0; i<4; i++)
 924                 {
 925                         for(j=i+1; j<4; j++)
 926                         {
 927                                 /* compare CW and AIFS */
 928                                 if((edca[j] & 0xFFFF) < (edca[i] & 0xFFFF))
 929                                 {
 930                                         change_inx = _TRUE;
 931                                 }
 932                                 else if((edca[j] & 0xFFFF) == (edca[i] & 0xFFFF))
 933                                 {
 934                                         /* compare TXOP */
 935                                         if((edca[j] >> 16) > (edca[i] >> 16))
 936                                                 change_inx = _TRUE;
 937                                 }
 938
 939                                 if(change_inx)
 940                                 {
 941                                         tmp = edca[i];
 942                                         edca[i] = edca[j];
 943                                         edca[j] = tmp;
 944
 945                                         tmp = inx[i];
 946                                         inx[i] = inx[j];
 947                                         inx[j] = tmp;
 948
 949                                         change_inx = _FALSE;
 950                                 }
 951                         }
 952                 }
 953         }
 954
 955         for(i=0; i<4; i++) {
 956                 pxmitpriv->wmm_para_seq[i] = inx[i];
 957                 DBG_8723A("wmm_para_seq(%d): %d\n", i, pxmitpriv->wmm_para_seq[i]);
 958         }
 959
 960         return;
 961 }
 962
 963 static void bwmode_update_check(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs pIE)
 964 {
 965 #ifdef CONFIG_80211N_HT
 966         unsigned char    new_bwmode;
 967         unsigned char  new_ch_offset;
 968         struct HT_info_element   *pHT_info;
 969         struct mlme_priv        *pmlmepriv = &(padapter->mlmepriv);
 970         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
 971         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 972         struct registry_priv *pregistrypriv = &padapter->registrypriv;
 973         struct ht_priv                  *phtpriv = &pmlmepriv->htpriv;
 974
 975         if(!pIE)
 976                 return;
 977
 978         if(phtpriv->ht_option == _FALSE)        return;
 979
 980         if(pIE->Length > sizeof(struct HT_info_element))
 981                 return;
 982
 983         pHT_info = (struct HT_info_element *)pIE->data;
 984
 985         if((pHT_info->infos[0] & BIT(2)) && pregistrypriv->cbw40_enable )
 986         {
 987                 new_bwmode = HT_CHANNEL_WIDTH_40;
 988
 989                 switch (pHT_info->infos[0] & 0x3)
 990                 {
 991                         case 1:
 992                                 new_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
 993                                 break;
 994
 995                         case 3:
 996                                 new_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
 997                                 break;
 998
 999                         default:
1000                                 new_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
1001                                 break;
1002                 }
1003         }
1004         else
1005         {
1006                 new_bwmode = HT_CHANNEL_WIDTH_20;
1007                 new_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
1008         }
1009
1010         if((new_bwmode!= pmlmeext->cur_bwmode) || (new_ch_offset!=pmlmeext->cur_ch_offset))
1011         {
1012                 pmlmeinfo->bwmode_updated = _TRUE;
1013
1014                 pmlmeext->cur_bwmode = new_bwmode;
1015                 pmlmeext->cur_ch_offset = new_ch_offset;
1016
1017                 /* update HT info also */
1018                 HT_info_handler(padapter, pIE);
1019         }
1020         else
1021         {
1022                 pmlmeinfo->bwmode_updated = _FALSE;
1023         }
1024
1025         if(_TRUE == pmlmeinfo->bwmode_updated)
1026         {
1027                 struct sta_info *psta;
1028                 WLAN_BSSID_EX   *cur_network = &(pmlmeinfo->network);
1029                 struct sta_priv *pstapriv = &padapter->stapriv;
1030
1031                 /* set_channel_bwmode(padapter, pmlmeext->cur_channel, pmlmeext->cur_ch_offset, pmlmeext->cur_bwmode); */
1032
1033                 /* update ap's stainfo */
1034                 psta = rtw_get_stainfo(pstapriv, cur_network->MacAddress);
1035                 if(psta)
1036                 {
1037                         struct ht_priv  *phtpriv_sta = &psta->htpriv;
1038
1039                         if(phtpriv_sta->ht_option)
1040                         {
1041                                 /*  bwmode */
1042                                 phtpriv_sta->bwmode = pmlmeext->cur_bwmode;
1043                                 phtpriv_sta->ch_offset = pmlmeext->cur_ch_offset;
1044                         }
1045                         else
1046                         {
1047                                 phtpriv_sta->bwmode = HT_CHANNEL_WIDTH_20;
1048                                 phtpriv_sta->ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
1049                         }
1050
1051                 }
1052         }
1053 #endif /* CONFIG_80211N_HT */
1054 }
1055
1056 void HT_caps_handler(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs pIE)
1057 {
1058 #ifdef CONFIG_80211N_HT
1059         unsigned int    i;
1060         u8      rf_type;
1061         u8      max_AMPDU_len, min_MPDU_spacing;
1062         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
1063         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1064         struct mlme_priv                *pmlmepriv = &padapter->mlmepriv;
1065         struct ht_priv                  *phtpriv = &pmlmepriv->htpriv;
1066         struct registry_priv    *pregistrypriv = &padapter->registrypriv;
1067
1068         if(pIE==NULL) return;
1069
1070         if(phtpriv->ht_option == _FALSE)        return;
1071
1072         pmlmeinfo->HT_caps_enable = 1;
1073
1074         for (i = 0; i < (pIE->Length); i++)
1075         {
1076                 if (i != 2)
1077                 {
1078                         /*      Commented by Albert 2010/07/12 */
1079                         /*      Got the endian issue here. */
1080                         pmlmeinfo->HT_caps.u.HT_cap[i] &= (pIE->data[i]);
1081                 }
1082                 else
1083                 {
1084                         /* modify from  fw by Thomas 2010/11/17 */
1085                         if ((pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3) > (pIE->data[i] & 0x3))
1086                         {
1087                                 max_AMPDU_len = (pIE->data[i] & 0x3);
1088                         }
1089                         else
1090                         {
1091                                 max_AMPDU_len = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3);
1092                         }
1093
1094                         if ((pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c) > (pIE->data[i] & 0x1c))
1095                         {
1096                                 min_MPDU_spacing = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c);
1097                         }
1098                         else
1099                         {
1100                                 min_MPDU_spacing = (pIE->data[i] & 0x1c);
1101                         }
1102
1103                         pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para = max_AMPDU_len | min_MPDU_spacing;
1104                 }
1105         }
1106
1107         /*      Commented by Albert 2010/07/12 */
1108         /*      Have to handle the endian issue after copying. */
1109         /*      HT_ext_caps didn't be used yet. */
1110         pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info = le16_to_cpu( pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info );
1111         pmlmeinfo->HT_caps.u.HT_cap_element.HT_ext_caps = le16_to_cpu( pmlmeinfo->HT_caps.u.HT_cap_element.HT_ext_caps );
1112
1113         rtw_hal_get_hwreg(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
1114
1115         /* update the MCS rates */
1116         for (i = 0; i < 16; i++)
1117         {
1118                 if((rf_type == RF_1T1R) || (rf_type == RF_1T2R))
1119                 {
1120                         pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_1R[i];
1121                 }
1122                 else
1123                 {
1124                         #ifdef CONFIG_DISABLE_MCS13TO15
1125                         if(pmlmeext->cur_bwmode == HT_CHANNEL_WIDTH_40 && (pregistrypriv->wifi_spec!=1))
1126                                 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R_MCS13TO15_OFF[i];
1127                         else
1128                         pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
1129                         #else
1130                         pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
1131                         #endif /* CONFIG_DISABLE_MCS13TO15 */
1132                 }
1133                 #ifdef RTL8192C_RECONFIG_TO_1T1R
1134                 {
1135                         pmlmeinfo->HT_caps.HT_cap_element.MCS_rate[i] &= MCS_rate_1R[i];
1136                 }
1137                 #endif
1138         }
1139 #endif /* CONFIG_80211N_HT */
1140         return;
1141 }
1142
1143 void HT_info_handler(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs pIE)
1144 {
1145 #ifdef CONFIG_80211N_HT
1146         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
1147         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1148         struct mlme_priv                *pmlmepriv = &padapter->mlmepriv;
1149         struct ht_priv                  *phtpriv = &pmlmepriv->htpriv;
1150
1151         if(pIE==NULL) return;
1152
1153         if(phtpriv->ht_option == _FALSE)        return;
1154
1155         if(pIE->Length > sizeof(struct HT_info_element))
1156                 return;
1157
1158         pmlmeinfo->HT_info_enable = 1;
1159         memcpy(&(pmlmeinfo->HT_info), pIE->data, pIE->Length);
1160 #endif /* CONFIG_80211N_HT */
1161         return;
1162 }
1163
1164 void HTOnAssocRsp(_adapter *padapter)
1165 {
1166         unsigned char           max_AMPDU_len;
1167         unsigned char           min_MPDU_spacing;
1168         /* struct registry_priv  *pregpriv = &padapter->registrypriv; */
1169         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
1170         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1171
1172         DBG_8723A("%s\n", __FUNCTION__);
1173
1174         if ((pmlmeinfo->HT_info_enable) && (pmlmeinfo->HT_caps_enable))
1175         {
1176                 pmlmeinfo->HT_enable = 1;
1177         }
1178         else
1179         {
1180                 pmlmeinfo->HT_enable = 0;
1181                 /* set_channel_bwmode(padapter, pmlmeext->cur_channel, pmlmeext->cur_ch_offset, pmlmeext->cur_bwmode); */
1182                 return;
1183         }
1184
1185         /* handle A-MPDU parameter field */
1186         /*
1187                 AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
1188                 AMPDU_para [4:2]:Min MPDU Start Spacing
1189         */
1190         max_AMPDU_len = pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x03;
1191
1192         min_MPDU_spacing = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c) >> 2;
1193
1194         rtw_hal_set_hwreg(padapter, HW_VAR_AMPDU_MIN_SPACE, (u8 *)(&min_MPDU_spacing));
1195
1196         rtw_hal_set_hwreg(padapter, HW_VAR_AMPDU_FACTOR, (u8 *)(&max_AMPDU_len));
1197 }
1198
1199 void ERP_IE_handler(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs pIE)
1200 {
1201         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
1202         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1203
1204         if(pIE->Length>1)
1205                 return;
1206
1207         pmlmeinfo->ERP_enable = 1;
1208         memcpy(&(pmlmeinfo->ERP_IE), pIE->data, pIE->Length);
1209 }
1210
1211 void VCS_update(_adapter *padapter, struct sta_info *psta)
1212 {
1213         struct registry_priv     *pregpriv = &padapter->registrypriv;
1214         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
1215         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1216
1217         switch (pregpriv->vrtl_carrier_sense)/* 0:off 1:on 2:auto */
1218         {
1219                 case 0: /* off */
1220                         psta->rtsen = 0;
1221                         psta->cts2self = 0;
1222                         break;
1223
1224                 case 1: /* on */
1225                         if (pregpriv->vcs_type == 1) /* 1:RTS/CTS 2:CTS to self */
1226                         {
1227                                 psta->rtsen = 1;
1228                                 psta->cts2self = 0;
1229                         }
1230                         else
1231                         {
1232                                 psta->rtsen = 0;
1233                                 psta->cts2self = 1;
1234                         }
1235                         break;
1236
1237                 case 2: /* auto */
1238                 default:
1239                         if ((pmlmeinfo->ERP_enable) && (pmlmeinfo->ERP_IE & BIT(1)))
1240                         {
1241                                 if (pregpriv->vcs_type == 1)
1242                                 {
1243                                         psta->rtsen = 1;
1244                                         psta->cts2self = 0;
1245                                 }
1246                                 else
1247                                 {
1248                                         psta->rtsen = 0;
1249                                         psta->cts2self = 1;
1250                                 }
1251                         }
1252                         else
1253                         {
1254                                 psta->rtsen = 0;
1255                                 psta->cts2self = 0;
1256                         }
1257                         break;
1258         }
1259 }
1260
1261 #ifdef CONFIG_TDLS
1262 int check_ap_tdls_prohibited(u8 *pframe, u8 pkt_len)
1263 {
1264         u8 tdls_prohibited_bit = 0x40; /* bit(38); TDLS_prohibited */
1265
1266         if(pkt_len < 5)
1267         {
1268                 return _FALSE;
1269         }
1270
1271         pframe += 4;
1272         if( (*pframe) & tdls_prohibited_bit )
1273                 return _TRUE;
1274
1275         return _FALSE;
1276 }
1277 #endif /* CONFIG_TDLS */
1278
1279 int rtw_check_bcn_info(ADAPTER *Adapter, u8 *pframe, u32 packet_len)
1280 {
1281         unsigned int            len;
1282         unsigned char           *p;
1283         unsigned short  val16, subtype;
1284         struct wlan_network *cur_network = &(Adapter->mlmepriv.cur_network);
1285         /* u8 wpa_ie[255],rsn_ie[255]; */
1286         u16 wpa_len=0,rsn_len=0;
1287         u8 encryp_protocol = 0;
1288         WLAN_BSSID_EX *bssid;
1289         int group_cipher = 0, pairwise_cipher = 0, is_8021x = 0;
1290         unsigned char *pbuf;
1291         u32 wpa_ielen = 0;
1292         u8 *pbssid = GetAddr3Ptr(pframe);
1293         u32 hidden_ssid = 0;
1294         u8 cur_network_type, network_type=0;
1295         struct HT_info_element *pht_info = NULL;
1296         struct rtw_ieee80211_ht_cap *pht_cap = NULL;
1297         u32 bcn_channel;
1298         unsigned short  ht_cap_info;
1299         unsigned char   ht_info_infos_0;
1300
1301         if (is_client_associated_to_ap(Adapter) == _FALSE)
1302                 return _TRUE;
1303
1304         len = packet_len - sizeof(struct rtw_ieee80211_hdr_3addr);
1305
1306         if (len > MAX_IE_SZ) {
1307                 DBG_8723A("%s IE too long for survey event\n", __func__);
1308                 return _FAIL;
1309         }
1310
1311         if (memcmp(cur_network->network.MacAddress, pbssid, 6)) {
1312                 DBG_8723A("Oops: rtw_check_network_encrypt linked but recv other bssid bcn\n" MAC_FMT MAC_FMT,
1313                                 MAC_ARG(pbssid), MAC_ARG(cur_network->network.MacAddress));
1314                 return _TRUE;
1315         }
1316
1317         bssid = (WLAN_BSSID_EX *)rtw_zmalloc(sizeof(WLAN_BSSID_EX));
1318
1319         subtype = GetFrameSubType(pframe) >> 4;
1320
1321         if(subtype==WIFI_BEACON)
1322                 bssid->Reserved[0] = 1;
1323
1324         bssid->Length = sizeof(WLAN_BSSID_EX) - MAX_IE_SZ + len;
1325
1326         /* below is to copy the information element */
1327         bssid->IELength = len;
1328         memcpy(bssid->IEs, (pframe + sizeof(struct rtw_ieee80211_hdr_3addr)), bssid->IELength);
1329
1330         /* check bw and channel offset */
1331         /* parsing HT_CAP_IE */
1332         p = rtw_get_ie(bssid->IEs + _FIXED_IE_LENGTH_, _HT_CAPABILITY_IE_, &len, bssid->IELength - _FIXED_IE_LENGTH_);
1333         if(p && len>0) {
1334                         pht_cap = (struct rtw_ieee80211_ht_cap *)(p + 2);
1335                         ht_cap_info = pht_cap->cap_info;
1336         } else {
1337                         ht_cap_info = 0;
1338         }
1339         /* parsing HT_INFO_IE */
1340         p = rtw_get_ie(bssid->IEs + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, bssid->IELength - _FIXED_IE_LENGTH_);
1341         if(p && len>0) {
1342                         pht_info = (struct HT_info_element *)(p + 2);
1343                         ht_info_infos_0 = pht_info->infos[0];
1344         } else {
1345                         ht_info_infos_0 = 0;
1346         }
1347         if (ht_cap_info != cur_network->BcnInfo.ht_cap_info ||
1348                 ((ht_info_infos_0&0x03) != (cur_network->BcnInfo.ht_info_infos_0&0x03))) {
1349                         DBG_8723A("%s bcn now: ht_cap_info:%x ht_info_infos_0:%x\n", __func__,
1350                                                         ht_cap_info, ht_info_infos_0);
1351                         DBG_8723A("%s bcn link: ht_cap_info:%x ht_info_infos_0:%x\n", __func__,
1352                                                         cur_network->BcnInfo.ht_cap_info, cur_network->BcnInfo.ht_info_infos_0);
1353                         DBG_8723A("%s bw mode change, disconnect\n", __func__);
1354                         {
1355                                 /* bcn_info_update */
1356                                 cur_network->BcnInfo.ht_cap_info = ht_cap_info;
1357                                 cur_network->BcnInfo.ht_info_infos_0 = ht_info_infos_0;
1358                                 /* to do : need to check that whether modify related register of BB or not */
1359                         }
1360                         /* goto _mismatch; */
1361         }
1362
1363         /* Checking for channel */
1364         p = rtw_get_ie(bssid->IEs + _FIXED_IE_LENGTH_, _DSSET_IE_, &len, bssid->IELength - _FIXED_IE_LENGTH_);
1365         if (p) {
1366                         bcn_channel = *(p + 2);
1367         } else {/* In 5G, some ap do not have DSSET IE checking HT info for channel */
1368                         p = rtw_get_ie(bssid->IEs + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, bssid->IELength - _FIXED_IE_LENGTH_);
1369                         if(pht_info) {
1370                                         bcn_channel = pht_info->primary_channel;
1371                         } else { /* we don't find channel IE, so don't check it */
1372                                         DBG_8723A("Oops: %s we don't find channel IE, so don't check it \n", __func__);
1373                                         bcn_channel = Adapter->mlmeextpriv.cur_channel;
1374                         }
1375         }
1376         if (bcn_channel != Adapter->mlmeextpriv.cur_channel) {
1377                         DBG_8723A("%s beacon channel:%d cur channel:%d disconnect\n", __func__,
1378                                                    bcn_channel, Adapter->mlmeextpriv.cur_channel);
1379                         goto _mismatch;
1380         }
1381
1382         /* checking SSID */
1383         if ((p = rtw_get_ie(bssid->IEs + _FIXED_IE_LENGTH_, _SSID_IE_, &len, bssid->IELength - _FIXED_IE_LENGTH_)) == NULL) {
1384                 DBG_8723A("%s marc: cannot find SSID for survey event\n", __func__);
1385                 hidden_ssid = _TRUE;
1386         } else {
1387                 hidden_ssid = _FALSE;
1388         }
1389
1390         if((NULL != p) && (_FALSE == hidden_ssid && (*(p + 1)))) {
1391                 memcpy(bssid->Ssid.Ssid, (p + 2), *(p + 1));
1392                 bssid->Ssid.SsidLength = *(p + 1);
1393         } else {
1394                 bssid->Ssid.SsidLength = 0;
1395                 bssid->Ssid.Ssid[0] = '\0';
1396         }
1397
1398         RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,("%s bssid.Ssid.Ssid:%s bssid.Ssid.SsidLength:%d "
1399                                 "cur_network->network.Ssid.Ssid:%s len:%d\n", __func__, bssid->Ssid.Ssid,
1400                                 bssid->Ssid.SsidLength, cur_network->network.Ssid.Ssid,
1401                                 cur_network->network.Ssid.SsidLength));
1402
1403         if (memcmp(bssid->Ssid.Ssid, cur_network->network.Ssid.Ssid, 32) ||
1404             bssid->Ssid.SsidLength != cur_network->network.Ssid.SsidLength) {
1405                 if (bssid->Ssid.Ssid[0] != '\0' &&
1406                     bssid->Ssid.SsidLength != 0) { /* not hidden ssid */
1407                         DBG_8723A("%s(), SSID is not match return FAIL\n", __func__);
1408                         goto _mismatch;
1409                 }
1410         }
1411
1412         /* check encryption info */
1413         val16 = rtw_get_capability((WLAN_BSSID_EX *)bssid);
1414
1415         if (val16 & BIT(4))
1416                 bssid->Privacy = 1;
1417         else
1418                 bssid->Privacy = 0;
1419
1420         RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,
1421                         ("%s(): cur_network->network.Privacy is %d, bssid.Privacy is %d\n",
1422                          __func__, cur_network->network.Privacy,bssid->Privacy));
1423         if (cur_network->network.Privacy != bssid->Privacy) {
1424                 DBG_8723A("%s(), privacy is not match return FAIL\n",__func__);
1425                 goto _mismatch;
1426         }
1427
1428         rtw_get_sec_ie(bssid->IEs, bssid->IELength, NULL,&rsn_len,NULL,&wpa_len);
1429
1430         if (rsn_len > 0) {
1431                 encryp_protocol = ENCRYP_PROTOCOL_WPA2;
1432         } else if (wpa_len > 0) {
1433                 encryp_protocol = ENCRYP_PROTOCOL_WPA;
1434         } else {
1435                 if (bssid->Privacy)
1436                         encryp_protocol = ENCRYP_PROTOCOL_WEP;
1437         }
1438
1439         if (cur_network->BcnInfo.encryp_protocol != encryp_protocol) {
1440                 DBG_8723A("%s(): enctyp is not match ,return FAIL\n",__func__);
1441                 goto _mismatch;
1442         }
1443
1444         if (encryp_protocol == ENCRYP_PROTOCOL_WPA || encryp_protocol == ENCRYP_PROTOCOL_WPA2) {
1445                 pbuf = rtw_get_wpa_ie(&bssid->IEs[12], &wpa_ielen, bssid->IELength-12);
1446                 if(pbuf && (wpa_ielen>0)) {
1447                         if (_SUCCESS == rtw_parse_wpa_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is_8021x)) {
1448                                 RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,
1449                                                 ("%s pnetwork->pairwise_cipher: %d, group_cipher is %d, is_8021x is %d\n", __func__,
1450                                                  pairwise_cipher, group_cipher, is_8021x));
1451                         }
1452                 } else {
1453                         pbuf = rtw_get_wpa2_ie(&bssid->IEs[12], &wpa_ielen, bssid->IELength-12);
1454
1455                         if(pbuf && (wpa_ielen>0)) {
1456                                 if (_SUCCESS == rtw_parse_wpa2_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is_8021x)) {
1457                                         RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,
1458                                                         ("%s pnetwork->pairwise_cipher: %d, pnetwork->group_cipher is %d, is_802x is %d\n",
1459                                                          __func__, pairwise_cipher, group_cipher, is_8021x));
1460                                 }
1461                         }
1462                 }
1463
1464                 RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,
1465                                 ("%s cur_network->group_cipher is %d: %d\n",__func__, cur_network->BcnInfo.group_cipher, group_cipher));
1466                 if (pairwise_cipher != cur_network->BcnInfo.pairwise_cipher || group_cipher != cur_network->BcnInfo.group_cipher) {
1467                         DBG_8723A("%s pairwise_cipher(%x:%x) or group_cipher(%x:%x) is not match ,return FAIL\n",__func__,
1468                                         pairwise_cipher, cur_network->BcnInfo.pairwise_cipher,
1469                                         group_cipher, cur_network->BcnInfo.group_cipher);
1470                         goto _mismatch;
1471                 }
1472
1473                 if (is_8021x != cur_network->BcnInfo.is_8021x) {
1474                         DBG_8723A("%s authentication is not match ,return FAIL\n", __func__);
1475                         goto _mismatch;
1476                 }
1477         }
1478
1479         rtw_mfree((u8 *)bssid, sizeof(WLAN_BSSID_EX));
1480         return _SUCCESS;
1481
1482 _mismatch:
1483         rtw_mfree((u8 *)bssid, sizeof(WLAN_BSSID_EX));
1484         _func_exit_;
1485         return _FAIL;
1486 }
1487
1488 void update_beacon_info(_adapter *padapter, u8 *pframe, uint pkt_len, struct sta_info *psta)
1489 {
1490         unsigned int i;
1491         unsigned int len;
1492         PNDIS_802_11_VARIABLE_IEs       pIE;
1493
1494 #ifdef CONFIG_TDLS
1495         struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
1496         u8 tdls_prohibited[] = { 0x00, 0x00, 0x00, 0x00, 0x10 }; /* bit(38): TDLS_prohibited */
1497 #endif /* CONFIG_TDLS */
1498
1499         len = pkt_len - (_BEACON_IE_OFFSET_ + WLAN_HDR_A3_LEN);
1500
1501         for (i = 0; i < len;)
1502         {
1503                 pIE = (PNDIS_802_11_VARIABLE_IEs)(pframe + (_BEACON_IE_OFFSET_ + WLAN_HDR_A3_LEN) + i);
1504
1505                 switch (pIE->ElementID)
1506                 {
1507
1508                         case _HT_EXTRA_INFO_IE_:        /* HT info */
1509                                 /* HT_info_handler(padapter, pIE); */
1510                                 bwmode_update_check(padapter, pIE);
1511                                 break;
1512
1513                         case _ERPINFO_IE_:
1514                                 ERP_IE_handler(padapter, pIE);
1515                                 VCS_update(padapter, psta);
1516                                 break;
1517
1518 #ifdef CONFIG_TDLS
1519                         case _EXT_CAP_IE_:
1520                                 if( check_ap_tdls_prohibited(pIE->data, pIE->Length) == _TRUE )
1521                                         ptdlsinfo->ap_prohibited = _TRUE;
1522                                 break;
1523 #endif /* CONFIG_TDLS */
1524                         default:
1525                                 break;
1526                 }
1527
1528                 i += (pIE->Length + 2);
1529         }
1530 }
1531
1532 #ifdef CONFIG_DFS
1533 void process_csa_ie(_adapter *padapter, u8 *pframe, uint pkt_len)
1534 {
1535         unsigned int i;
1536         unsigned int len;
1537         PNDIS_802_11_VARIABLE_IEs       pIE;
1538         u8 new_ch_no = 0;
1539
1540         len = pkt_len - (_BEACON_IE_OFFSET_ + WLAN_HDR_A3_LEN);
1541
1542         for (i = 0; i < len;)
1543         {
1544                 pIE = (PNDIS_802_11_VARIABLE_IEs)(pframe + (_BEACON_IE_OFFSET_ + WLAN_HDR_A3_LEN) + i);
1545
1546                 switch (pIE->ElementID)
1547                 {
1548                         case _CH_SWTICH_ANNOUNCE_:
1549                                 memcpy(&new_ch_no, pIE->data+1, 1);
1550                                 rtw_set_csa_cmd(padapter, new_ch_no);
1551                                 break;
1552
1553                         default:
1554                                 break;
1555                 }
1556
1557                 i += (pIE->Length + 2);
1558         }
1559 }
1560 #endif /* CONFIG_DFS */
1561
1562 unsigned int is_ap_in_tkip(_adapter *padapter)
1563 {
1564         u32 i;
1565         PNDIS_802_11_VARIABLE_IEs       pIE;
1566         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1567         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1568         WLAN_BSSID_EX           *cur_network = &(pmlmeinfo->network);
1569
1570         if (rtw_get_capability((WLAN_BSSID_EX *)cur_network) & WLAN_CAPABILITY_PRIVACY)
1571         {
1572                 for (i = sizeof(NDIS_802_11_FIXED_IEs); i < pmlmeinfo->network.IELength;)
1573                 {
1574                         pIE = (PNDIS_802_11_VARIABLE_IEs)(pmlmeinfo->network.IEs + i);
1575
1576                         switch (pIE->ElementID)
1577                         {
1578                                 case _VENDOR_SPECIFIC_IE_:
1579                                         if ((!memcmp(pIE->data, RTW_WPA_OUI, 4)) && (!memcmp((pIE->data + 12), WPA_TKIP_CIPHER, 4)))
1580                                         {
1581                                                 return _TRUE;
1582                                         }
1583                                         break;
1584
1585                                 case _RSN_IE_2_:
1586                                         if (!memcmp((pIE->data + 8), RSN_TKIP_CIPHER, 4))
1587                                         {
1588                                                 return _TRUE;
1589                                         }
1590
1591                                 default:
1592                                         break;
1593                         }
1594
1595                         i += (pIE->Length + 2);
1596                 }
1597
1598                 return _FALSE;
1599         }
1600         else
1601         {
1602                 return _FALSE;
1603         }
1604 }
1605
1606 unsigned int should_forbid_n_rate(_adapter * padapter)
1607 {
1608         u32 i;
1609         PNDIS_802_11_VARIABLE_IEs       pIE;
1610         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
1611         WLAN_BSSID_EX  *cur_network = &pmlmepriv->cur_network.network;
1612
1613         if (rtw_get_capability((WLAN_BSSID_EX *)cur_network) & WLAN_CAPABILITY_PRIVACY)
1614         {
1615                 for (i = sizeof(NDIS_802_11_FIXED_IEs); i < cur_network->IELength;)
1616                 {
1617                         pIE = (PNDIS_802_11_VARIABLE_IEs)(cur_network->IEs + i);
1618
1619                         switch (pIE->ElementID)
1620                         {
1621                                 case _VENDOR_SPECIFIC_IE_:
1622                                         if (!memcmp(pIE->data, RTW_WPA_OUI, 4) &&
1623                                                 ((!memcmp((pIE->data + 12), WPA_CIPHER_SUITE_CCMP, 4)) ||
1624                                                   (!memcmp((pIE->data + 16), WPA_CIPHER_SUITE_CCMP, 4))))
1625                                                 return _FALSE;
1626                                         break;
1627
1628                                 case _RSN_IE_2_:
1629                                         if  ((!memcmp((pIE->data + 8), RSN_CIPHER_SUITE_CCMP, 4))  ||
1630                                                (!memcmp((pIE->data + 12), RSN_CIPHER_SUITE_CCMP, 4)))
1631                                         return _FALSE;
1632
1633                                 default:
1634                                         break;
1635                         }
1636
1637                         i += (pIE->Length + 2);
1638                 }
1639
1640                 return _TRUE;
1641         }
1642         else
1643         {
1644                 return _FALSE;
1645         }
1646 }
1647
1648 unsigned int is_ap_in_wep(_adapter *padapter)
1649 {
1650         u32 i;
1651         PNDIS_802_11_VARIABLE_IEs       pIE;
1652         struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1653         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1654         WLAN_BSSID_EX           *cur_network = &(pmlmeinfo->network);
1655
1656         if (rtw_get_capability((WLAN_BSSID_EX *)cur_network) & WLAN_CAPABILITY_PRIVACY)
1657         {
1658                 for (i = sizeof(NDIS_802_11_FIXED_IEs); i < pmlmeinfo->network.IELength;)
1659                 {
1660                         pIE = (PNDIS_802_11_VARIABLE_IEs)(pmlmeinfo->network.IEs + i);
1661
1662                         switch (pIE->ElementID)
1663                         {
1664                                 case _VENDOR_SPECIFIC_IE_:
1665                                         if (!memcmp(pIE->data, RTW_WPA_OUI, 4))
1666                                                 return _FALSE;
1667                                         break;
1668
1669                                 case _RSN_IE_2_:
1670                                         return _FALSE;
1671
1672                                 default:
1673                                         break;
1674                         }
1675
1676                         i += (pIE->Length + 2);
1677                 }
1678
1679                 return _TRUE;
1680         }
1681         else
1682         {
1683                 return _FALSE;
1684         }
1685 }
1686
1687 int wifirate2_ratetbl_inx(unsigned char rate);
1688 int wifirate2_ratetbl_inx(unsigned char rate)
1689 {
1690         int     inx = 0;
1691         rate = rate & 0x7f;
1692
1693         switch (rate)
1694         {
1695                 case 54*2:
1696                         inx = 11;
1697                         break;
1698
1699                 case 48*2:
1700                         inx = 10;
1701                         break;
1702
1703                 case 36*2:
1704                         inx = 9;
1705                         break;
1706
1707                 case 24*2:
1708                         inx = 8;
1709                         break;
1710
1711                 case 18*2:
1712                         inx = 7;
1713                         break;
1714
1715                 case 12*2:
1716                         inx = 6;
1717                         break;
1718
1719                 case 9*2:
1720                         inx = 5;
1721                         break;
1722
1723                 case 6*2:
1724                         inx = 4;
1725                         break;
1726
1727                 case 11*2:
1728                         inx = 3;
1729                         break;
1730                 case 11:
1731                         inx = 2;
1732                         break;
1733
1734                 case 2*2:
1735                         inx = 1;
1736                         break;
1737
1738                 case 1*2:
1739                         inx = 0;
1740                         break;
1741
1742         }
1743         return inx;
1744 }
1745
1746 unsigned int update_basic_rate(unsigned char *ptn, unsigned int ptn_sz)
1747 {
1748         unsigned int i, num_of_rate;
1749         unsigned int mask = 0;
1750
1751         num_of_rate = (ptn_sz > NumRates)? NumRates: ptn_sz;
1752
1753         for (i = 0; i < num_of_rate; i++)
1754         {
1755                 if ((*(ptn + i)) & 0x80)
1756                 {
1757                         mask |= 0x1 << wifirate2_ratetbl_inx(*(ptn + i));
1758                 }
1759         }
1760         return mask;
1761 }
1762
1763 unsigned int update_supported_rate(unsigned char *ptn, unsigned int ptn_sz)
1764 {
1765         unsigned int i, num_of_rate;
1766         unsigned int mask = 0;
1767
1768         num_of_rate = (ptn_sz > NumRates)? NumRates: ptn_sz;
1769
1770         for (i = 0; i < num_of_rate; i++)
1771         {
1772                 mask |= 0x1 << wifirate2_ratetbl_inx(*(ptn + i));
1773         }
1774
1775         return mask;
1776 }
1777
1778 unsigned int update_MSC_rate(struct HT_caps_element *pHT_caps)
1779 {
1780         unsigned int mask = 0;
1781
1782         mask = ((pHT_caps->u.HT_cap_element.MCS_rate[0] << 12) | (pHT_caps->u.HT_cap_element.MCS_rate[1] << 20));
1783
1784         return mask;
1785 }
1786
1787 int support_short_GI(_adapter *padapter, struct HT_caps_element *pHT_caps)
1788 {
1789         unsigned char                                   bit_offset;
1790         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
1791         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1792
1793         if (!(pmlmeinfo->HT_enable))
1794                 return _FAIL;
1795
1796         if ((pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_RALINK))
1797                 return _FAIL;
1798
1799         bit_offset = (pmlmeext->cur_bwmode & HT_CHANNEL_WIDTH_40)? 6: 5;
1800
1801         if (pHT_caps->u.HT_cap_element.HT_caps_info & (0x1 << bit_offset))
1802         {
1803                 return _SUCCESS;
1804         }
1805         else
1806         {
1807                 return _FAIL;
1808         }
1809 }
1810
1811 unsigned char get_highest_rate_idx(u32 mask)
1812 {
1813         int i;
1814         unsigned char rate_idx=0;
1815
1816         for(i=27; i>=0; i--)
1817         {
1818                 if(mask & BIT(i))
1819                 {
1820                         rate_idx = i;
1821                         break;
1822                 }
1823         }
1824
1825         return rate_idx;
1826 }
1827
1828 unsigned char get_highest_mcs_rate(struct HT_caps_element *pHT_caps);
1829 unsigned char get_highest_mcs_rate(struct HT_caps_element *pHT_caps)
1830 {
1831         int i, mcs_rate;
1832
1833         mcs_rate = (pHT_caps->u.HT_cap_element.MCS_rate[0] | (pHT_caps->u.HT_cap_element.MCS_rate[1] << 8));
1834
1835         for (i = 15; i >= 0; i--)
1836         {
1837                 if (mcs_rate & (0x1 << i))
1838                 {
1839                         break;
1840                 }
1841         }
1842
1843         return i;
1844 }
1845
1846 void Update_RA_Entry(_adapter *padapter, struct sta_info *psta)
1847 {
1848         rtw_hal_update_ra_mask(psta, 0);
1849 }
1850
1851 void enable_rate_adaptive(_adapter *padapter, struct sta_info *psta);
1852 void enable_rate_adaptive(_adapter *padapter, struct sta_info *psta)
1853 {
1854         Update_RA_Entry(padapter, psta);
1855 }
1856
1857 void set_sta_rate(_adapter *padapter, struct sta_info *psta)
1858 {
1859         /* rate adaptive */
1860         enable_rate_adaptive(padapter, psta);
1861 }
1862
1863 /*  Update RRSR and Rate for USERATE */
1864 void update_tx_basic_rate(_adapter *padapter, u8 wirelessmode)
1865 {
1866         NDIS_802_11_RATES_EX    supported_rates;
1867 #ifdef CONFIG_P2P
1868         struct wifidirect_info* pwdinfo = &padapter->wdinfo;
1869
1870         /*      Added by Albert 2011/03/22 */
1871         /*      In the P2P mode, the driver should not support the b mode. */
1872         /*      So, the Tx packet shouldn't use the CCK rate */
1873         if(!rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
1874                 return;
1875 #endif /* CONFIG_P2P */
1876 #ifdef CONFIG_INTEL_WIDI
1877         if (padapter->mlmepriv.widi_state != INTEL_WIDI_STATE_NONE)
1878                 return;
1879 #endif /* CONFIG_INTEL_WIDI */
1880
1881         memset(supported_rates, 0, NDIS_802_11_LENGTH_RATES_EX);
1882
1883         if ((wirelessmode & WIRELESS_11B) && (wirelessmode == WIRELESS_11B)) {
1884                 memcpy(supported_rates, rtw_basic_rate_cck, 4);
1885         } else if (wirelessmode & WIRELESS_11B) {
1886                 memcpy(supported_rates, rtw_basic_rate_mix, 7);
1887         } else {
1888                 memcpy(supported_rates, rtw_basic_rate_ofdm, 3);
1889         }
1890
1891         if (wirelessmode & WIRELESS_11B)
1892                 update_mgnt_tx_rate(padapter, IEEE80211_CCK_RATE_1MB);
1893         else
1894                 update_mgnt_tx_rate(padapter, IEEE80211_OFDM_RATE_6MB);
1895
1896         rtw_hal_set_hwreg(padapter, HW_VAR_BASIC_RATE, supported_rates);
1897 }
1898
1899 unsigned char check_assoc_AP(u8 *pframe, uint len)
1900 {
1901         unsigned int    i;
1902         PNDIS_802_11_VARIABLE_IEs       pIE;
1903         u8      epigram_vendor_flag;
1904         u8      ralink_vendor_flag;
1905         epigram_vendor_flag = 0;
1906         ralink_vendor_flag = 0;
1907
1908         for (i = sizeof(NDIS_802_11_FIXED_IEs); i < len;)
1909         {
1910                 pIE = (PNDIS_802_11_VARIABLE_IEs)(pframe + i);
1911
1912                 switch (pIE->ElementID)
1913                 {
1914                         case _VENDOR_SPECIFIC_IE_:
1915                                 if ((!memcmp(pIE->data, ARTHEROS_OUI1, 3)) ||
1916                                     (!memcmp(pIE->data, ARTHEROS_OUI2, 3)))
1917                                 {
1918                                         DBG_8723A("link to Artheros AP\n");
1919                                         return HT_IOT_PEER_ATHEROS;
1920                                 }
1921                                 else if ((!memcmp(pIE->data, BROADCOM_OUI1, 3)) ||
1922                                          !memcmp(pIE->data, BROADCOM_OUI2, 3) ||
1923                                          !memcmp(pIE->data, BROADCOM_OUI2, 3))
1924                                 {
1925                                         DBG_8723A("link to Broadcom AP\n");
1926                                         return HT_IOT_PEER_BROADCOM;
1927                                 }
1928                                 else if (!memcmp(pIE->data, MARVELL_OUI, 3))
1929                                 {
1930                                         DBG_8723A("link to Marvell AP\n");
1931                                         return HT_IOT_PEER_MARVELL;
1932                                 }
1933                                 else if (!memcmp(pIE->data, RALINK_OUI, 3))
1934                                 {
1935                                         if (!ralink_vendor_flag) {
1936                                                 ralink_vendor_flag = 1;
1937                                         } else {
1938                                                 DBG_8723A("link to Ralink AP\n");
1939                                                 return HT_IOT_PEER_RALINK;
1940                                         }
1941                                 }
1942                                 else if (!memcmp(pIE->data, CISCO_OUI, 3))
1943                                 {
1944                                         DBG_8723A("link to Cisco AP\n");
1945                                         return HT_IOT_PEER_CISCO;
1946                                 }
1947                                 else if (!memcmp(pIE->data, REALTEK_OUI, 3))
1948                                 {
1949                                         DBG_8723A("link to Realtek 96B\n");
1950                                         return HT_IOT_PEER_REALTEK;
1951                                 }
1952                                 else if (!memcmp(pIE->data, AIRGOCAP_OUI,3))
1953                                 {
1954                                         DBG_8723A("link to Airgo Cap\n");
1955                                         return HT_IOT_PEER_AIRGO;
1956                                 }
1957                                 else if (!memcmp(pIE->data, EPIGRAM_OUI, 3))
1958                                 {
1959                                         epigram_vendor_flag = 1;
1960                                         if(ralink_vendor_flag) {
1961                                                 DBG_8723A("link to Tenda W311R AP\n");
1962                                                 return HT_IOT_PEER_TENDA;
1963                                         } else {
1964                                                 DBG_8723A("Capture EPIGRAM_OUI\n");
1965                                         }
1966                                 }
1967                                 else
1968                                 {
1969                                         break;
1970                                 }
1971
1972                         default:
1973                                 break;
1974                 }
1975
1976                 i += (pIE->Length + 2);
1977         }
1978
1979         if (ralink_vendor_flag && !epigram_vendor_flag) {
1980                 DBG_8723A("link to Ralink AP\n");
1981                 return HT_IOT_PEER_RALINK;
1982         } else if (ralink_vendor_flag && epigram_vendor_flag){
1983                 DBG_8723A("link to Tenda W311R AP\n");
1984                 return HT_IOT_PEER_TENDA;
1985         } else {
1986                 DBG_8723A("link to new AP\n");
1987                 return HT_IOT_PEER_UNKNOWN;
1988         }
1989 }
1990
1991 void update_IOT_info(_adapter *padapter)
1992 {
1993         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
1994         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
1995
1996         switch (pmlmeinfo->assoc_AP_vendor)
1997         {
1998                 case HT_IOT_PEER_MARVELL:
1999                         pmlmeinfo->turboMode_cts2self = 1;
2000                         pmlmeinfo->turboMode_rtsen = 0;
2001                         break;
2002
2003                 case HT_IOT_PEER_RALINK:
2004                         pmlmeinfo->turboMode_cts2self = 0;
2005                         pmlmeinfo->turboMode_rtsen = 1;
2006                         /* disable high power */
2007                         Switch_DM_Func(padapter, (~DYNAMIC_BB_DYNAMIC_TXPWR), _FALSE);
2008                         break;
2009                 case HT_IOT_PEER_REALTEK:
2010                         /* rtw_write16(padapter, 0x4cc, 0xffff); */
2011                         /* rtw_write16(padapter, 0x546, 0x01c0); */
2012                         /* disable high power */
2013                         Switch_DM_Func(padapter, (~DYNAMIC_BB_DYNAMIC_TXPWR), _FALSE);
2014                         break;
2015                 default:
2016                         pmlmeinfo->turboMode_cts2self = 0;
2017                         pmlmeinfo->turboMode_rtsen = 1;
2018                         break;
2019         }
2020 }
2021
2022 void update_capinfo(PADAPTER Adapter, u16 updateCap)
2023 {
2024         struct mlme_ext_priv    *pmlmeext = &Adapter->mlmeextpriv;
2025         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
2026         bool            ShortPreamble;
2027
2028         /*  Check preamble mode, 2005.01.06, by rcnjko. */
2029         /*  Mark to update preamble value forever, 2008.03.18 by lanhsin */
2030         /* if( pMgntInfo->RegPreambleMode == PREAMBLE_AUTO ) */
2031         {
2032
2033                 if(updateCap & cShortPreamble)
2034                 { /*  Short Preamble */
2035                         if(pmlmeinfo->preamble_mode != PREAMBLE_SHORT) /*  PREAMBLE_LONG or PREAMBLE_AUTO */
2036                         {
2037                                 ShortPreamble = _TRUE;
2038                                 pmlmeinfo->preamble_mode = PREAMBLE_SHORT;
2039                                 rtw_hal_set_hwreg( Adapter, HW_VAR_ACK_PREAMBLE, (u8 *)&ShortPreamble );
2040                         }
2041                 }
2042                 else
2043                 { /*  Long Preamble */
2044                         if(pmlmeinfo->preamble_mode != PREAMBLE_LONG)  /*  PREAMBLE_SHORT or PREAMBLE_AUTO */
2045                         {
2046                                 ShortPreamble = _FALSE;
2047                                 pmlmeinfo->preamble_mode = PREAMBLE_LONG;
2048                                 rtw_hal_set_hwreg( Adapter, HW_VAR_ACK_PREAMBLE, (u8 *)&ShortPreamble );
2049                         }
2050                 }
2051         }
2052
2053         if ( updateCap & cIBSS ) {
2054                 /* Filen: See 802.11-2007 p.91 */
2055                 pmlmeinfo->slotTime = NON_SHORT_SLOT_TIME;
2056         }
2057         else
2058         {
2059                 /* Filen: See 802.11-2007 p.90 */
2060                 if( pmlmeext->cur_wireless_mode & (WIRELESS_11G | WIRELESS_11_24N))
2061                 {
2062                         if( (updateCap & cShortSlotTime) /* && (!(pMgntInfo->pHTInfo->RT2RT_HT_Mode & RT_HT_CAP_USE_LONG_PREAMBLE)) */)
2063                         { /*  Short Slot Time */
2064                                 if(pmlmeinfo->slotTime != SHORT_SLOT_TIME)
2065                                 {
2066                                         pmlmeinfo->slotTime = SHORT_SLOT_TIME;
2067                                 }
2068                         }
2069                         else
2070                         { /*  Long Slot Time */
2071                                 if(pmlmeinfo->slotTime != NON_SHORT_SLOT_TIME)
2072                                 {
2073                                         pmlmeinfo->slotTime = NON_SHORT_SLOT_TIME;
2074                                 }
2075                         }
2076                 }
2077                 else if( pmlmeext->cur_wireless_mode & (WIRELESS_11A | WIRELESS_11_5N))
2078                 {
2079                         pmlmeinfo->slotTime = SHORT_SLOT_TIME;
2080                 }
2081                 else
2082                 {
2083                         /* B Mode */
2084                         pmlmeinfo->slotTime = NON_SHORT_SLOT_TIME;
2085                 }
2086         }
2087
2088         rtw_hal_set_hwreg( Adapter, HW_VAR_SLOT_TIME, &pmlmeinfo->slotTime );
2089 }
2090
2091 void update_wireless_mode(_adapter *padapter)
2092 {
2093         int ratelen, network_type = 0;
2094         u32 SIFS_Timer;
2095         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
2096         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
2097         WLAN_BSSID_EX           *cur_network = &(pmlmeinfo->network);
2098         unsigned char                   *rate = cur_network->SupportedRates;
2099
2100         ratelen = rtw_get_rateset_len(cur_network->SupportedRates);
2101
2102         if ((pmlmeinfo->HT_info_enable) && (pmlmeinfo->HT_caps_enable))
2103         {
2104                 pmlmeinfo->HT_enable = 1;
2105         }
2106
2107         if(pmlmeext->cur_channel > 14)
2108         {
2109                 if (pmlmeinfo->HT_enable)
2110                 {
2111                         network_type = WIRELESS_11_5N;
2112                 }
2113
2114                 network_type |= WIRELESS_11A;
2115         }
2116         else
2117         {
2118                 if (pmlmeinfo->HT_enable)
2119                 {
2120                         network_type = WIRELESS_11_24N;
2121                 }
2122
2123                 if ((cckratesonly_included(rate, ratelen)) == _TRUE)
2124                 {
2125                         network_type |= WIRELESS_11B;
2126                 }
2127                 else if((cckrates_included(rate, ratelen)) == _TRUE)
2128                 {
2129                         network_type |= WIRELESS_11BG;
2130                 }
2131                 else
2132                 {
2133                         network_type |= WIRELESS_11G;
2134                 }
2135         }
2136
2137         pmlmeext->cur_wireless_mode = network_type & padapter->registrypriv.wireless_mode;
2138
2139         SIFS_Timer = 0x0a0a0808; /* 0x0808 -> for CCK, 0x0a0a -> for OFDM */
2140                              /* change this value if having IOT issues. */
2141
2142         padapter->HalFunc.SetHwRegHandler( padapter, HW_VAR_RESP_SIFS,  (u8 *)&SIFS_Timer);
2143
2144         if (pmlmeext->cur_wireless_mode & WIRELESS_11B)
2145                 update_mgnt_tx_rate(padapter, IEEE80211_CCK_RATE_1MB);
2146          else
2147                 update_mgnt_tx_rate(padapter, IEEE80211_OFDM_RATE_6MB);
2148 }
2149
2150 void fire_write_MAC_cmd(_adapter *padapter, unsigned int addr, unsigned int value)
2151 {
2152 }
2153
2154 void update_bmc_sta_support_rate(_adapter *padapter, u32 mac_id)
2155 {
2156         struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
2157         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
2158
2159         if(pmlmeext->cur_wireless_mode & WIRELESS_11B)
2160         {
2161                 /*  Only B, B/G, and B/G/N AP could use CCK rate */
2162                 memcpy((pmlmeinfo->FW_sta_info[mac_id].SupportedRates), rtw_basic_rate_cck, 4);
2163         }
2164         else
2165         {
2166                 memcpy((pmlmeinfo->FW_sta_info[mac_id].SupportedRates), rtw_basic_rate_ofdm, 4);
2167         }
2168 }
2169
2170 int update_sta_support_rate(_adapter *padapter, u8* pvar_ie, uint var_ie_len, int cam_idx)
2171 {
2172         unsigned int    ie_len;
2173         PNDIS_802_11_VARIABLE_IEs       pIE;
2174         int     supportRateNum = 0;
2175         struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
2176         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
2177
2178         pIE = (PNDIS_802_11_VARIABLE_IEs)rtw_get_ie(pvar_ie, _SUPPORTEDRATES_IE_, &ie_len, var_ie_len);
2179         if (pIE == NULL)
2180         {
2181                 return _FAIL;
2182         }
2183
2184         memcpy(pmlmeinfo->FW_sta_info[cam_idx].SupportedRates, pIE->data, ie_len);
2185         supportRateNum = ie_len;
2186
2187         pIE = (PNDIS_802_11_VARIABLE_IEs)rtw_get_ie(pvar_ie, _EXT_SUPPORTEDRATES_IE_, &ie_len, var_ie_len);
2188         if (pIE)
2189         {
2190                 memcpy((pmlmeinfo->FW_sta_info[cam_idx].SupportedRates + supportRateNum), pIE->data, ie_len);
2191         }
2192
2193         return _SUCCESS;
2194 }
2195
2196 void process_addba_req(_adapter *padapter, u8 *paddba_req, u8 *addr)
2197 {
2198         struct sta_info *psta;
2199         u16 tid, start_seq, param;
2200         struct recv_reorder_ctrl *preorder_ctrl;
2201         struct sta_priv *pstapriv = &padapter->stapriv;
2202         struct ADDBA_request    *preq = (struct ADDBA_request*)paddba_req;
2203         struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
2204         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
2205
2206         psta = rtw_get_stainfo(pstapriv, addr);
2207
2208         if(psta)
2209         {
2210                 start_seq = le16_to_cpu(preq->BA_starting_seqctrl) >> 4;
2211
2212                 param = le16_to_cpu(preq->BA_para_set);
2213                 tid = (param>>2)&0x0f;
2214
2215                 preorder_ctrl = &psta->recvreorder_ctrl[tid];
2216
2217                 #ifdef CONFIG_UPDATE_INDICATE_SEQ_WHILE_PROCESS_ADDBA_REQ
2218                 preorder_ctrl->indicate_seq = start_seq;
2219                 #ifdef DBG_RX_SEQ
2220                 DBG_8723A("DBG_RX_SEQ %s:%d IndicateSeq: %d, start_seq: %d\n", __FUNCTION__, __LINE__,
2221                         preorder_ctrl->indicate_seq, start_seq);
2222                 #endif
2223                 #else
2224                 preorder_ctrl->indicate_seq = 0xffff;
2225                 #endif
2226
2227                 preorder_ctrl->enable =(pmlmeinfo->bAcceptAddbaReq == _TRUE)? _TRUE :_FALSE;
2228         }
2229 }
2230
2231 void update_TSF(struct mlme_ext_priv *pmlmeext, u8 *pframe, uint len)
2232 {
2233         u8* pIE;
2234         u32 *pbuf;
2235
2236         pIE = pframe + sizeof(struct rtw_ieee80211_hdr_3addr);
2237         pbuf = (u32*)pIE;
2238
2239         pmlmeext->TSFValue = le32_to_cpu(*(pbuf+1));
2240
2241         pmlmeext->TSFValue = pmlmeext->TSFValue << 32;
2242
2243         pmlmeext->TSFValue |= le32_to_cpu(*pbuf);
2244 }
2245
2246 void correct_TSF(_adapter *padapter, struct mlme_ext_priv *pmlmeext)
2247 {
2248         rtw_hal_set_hwreg(padapter, HW_VAR_CORRECT_TSF, 0);
2249 }
2250
2251 void beacon_timing_control(_adapter *padapter)
2252 {
2253         rtw_hal_bcn_related_reg_setting(padapter);
2254 }
2255
2256 static _adapter *pbuddy_padapter = NULL;
2257
2258 int rtw_handle_dualmac(_adapter *adapter, bool init)
2259 {
2260         int status = _SUCCESS;
2261         struct dvobj_priv *dvobj = adapter_to_dvobj(adapter);
2262
2263         if (init) {
2264                 if (pbuddy_padapter == NULL) {
2265                         pbuddy_padapter = adapter;
2266                         DBG_8723A("%s(): pbuddy_padapter == NULL, Set pbuddy_padapter\n",__FUNCTION__);
2267                 } else {
2268                         adapter->pbuddy_adapter = pbuddy_padapter;
2269                         pbuddy_padapter->pbuddy_adapter = adapter;
2270                         /*  clear global value */
2271                         pbuddy_padapter = NULL;
2272                         DBG_8723A("%s(): pbuddy_padapter exist, Exchange Information\n",__FUNCTION__);
2273                 }
2274 #ifdef CONFIG_DUALMAC_CONCURRENT
2275                 if (dvobj->InterfaceNumber == 0) {
2276                         /* set adapter_type/iface type */
2277                         adapter->isprimary = _TRUE;
2278                         adapter->adapter_type = PRIMARY_ADAPTER;
2279                         adapter->iface_type = IFACE_PORT0;
2280                         DBG_8723A("%s(): PRIMARY_ADAPTER\n",__FUNCTION__);
2281                 } else {
2282                         /* set adapter_type/iface type */
2283                         adapter->isprimary = _FALSE;
2284                         adapter->adapter_type = SECONDARY_ADAPTER;
2285                         adapter->iface_type = IFACE_PORT1;
2286                         DBG_8723A("%s(): SECONDARY_ADAPTER\n",__FUNCTION__);
2287                 }
2288 #endif
2289         }else {
2290                 pbuddy_padapter = NULL;
2291         }
2292 exit:
2293         return status;
2294 }