linux/drivers/staging/rtl8712/wifi.h
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   1/******************************************************************************
   2 *
   3 * Copyright(c) 2007 - 2010 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 * Modifications for inclusion into the Linux staging tree are
  19 * Copyright(c) 2010 Larry Finger. All rights reserved.
  20 *
  21 * Contact information:
  22 * WLAN FAE <wlanfae@realtek.com>
  23 * Larry Finger <Larry.Finger@lwfinger.net>
  24 *
  25 ******************************************************************************/
  26#ifndef _WIFI_H_
  27#define _WIFI_H_
  28
  29#include <linux/compiler.h>
  30
  31#ifdef BIT
  32#undef BIT
  33#endif
  34#define BIT(x)  (1 << (x))
  35
  36#define WLAN_ETHHDR_LEN         14
  37#define WLAN_ETHADDR_LEN        6
  38#define WLAN_IEEE_OUI_LEN       3
  39#define WLAN_ADDR_LEN           6
  40#define WLAN_CRC_LEN            4
  41#define WLAN_BSSID_LEN          6
  42#define WLAN_BSS_TS_LEN         8
  43#define WLAN_HDR_A3_LEN         24
  44#define WLAN_HDR_A4_LEN         30
  45#define WLAN_HDR_A3_QOS_LEN     26
  46#define WLAN_HDR_A4_QOS_LEN     32
  47#define WLAN_SSID_MAXLEN        32
  48#define WLAN_DATA_MAXLEN        2312
  49
  50#define WLAN_A3_PN_OFFSET       24
  51#define WLAN_A4_PN_OFFSET       30
  52
  53#define WLAN_MIN_ETHFRM_LEN     60
  54#define WLAN_MAX_ETHFRM_LEN     1514
  55#define WLAN_ETHHDR_LEN         14
  56
  57#define P80211CAPTURE_VERSION   0x80211001
  58
  59enum WIFI_FRAME_TYPE {
  60        WIFI_MGT_TYPE  =        (0),
  61        WIFI_CTRL_TYPE =        (BIT(2)),
  62        WIFI_DATA_TYPE =        (BIT(3)),
  63        WIFI_QOS_DATA_TYPE      = (BIT(7)|BIT(3)),      /*!< QoS Data */
  64};
  65
  66enum WIFI_FRAME_SUBTYPE {
  67        /* below is for mgt frame */
  68        WIFI_ASSOCREQ       = (0 | WIFI_MGT_TYPE),
  69        WIFI_ASSOCRSP       = (BIT(4) | WIFI_MGT_TYPE),
  70        WIFI_REASSOCREQ     = (BIT(5) | WIFI_MGT_TYPE),
  71        WIFI_REASSOCRSP     = (BIT(5) | BIT(4) | WIFI_MGT_TYPE),
  72        WIFI_PROBEREQ       = (BIT(6) | WIFI_MGT_TYPE),
  73        WIFI_PROBERSP       = (BIT(6) | BIT(4) | WIFI_MGT_TYPE),
  74        WIFI_BEACON         = (BIT(7) | WIFI_MGT_TYPE),
  75        WIFI_ATIM           = (BIT(7) | BIT(4) | WIFI_MGT_TYPE),
  76        WIFI_DISASSOC       = (BIT(7) | BIT(5) | WIFI_MGT_TYPE),
  77        WIFI_AUTH           = (BIT(7) | BIT(5) | BIT(4) | WIFI_MGT_TYPE),
  78        WIFI_DEAUTH         = (BIT(7) | BIT(6) | WIFI_MGT_TYPE),
  79        WIFI_ACTION         = (BIT(7) | BIT(6) | BIT(4) | WIFI_MGT_TYPE),
  80        /* below is for control frame */
  81        WIFI_PSPOLL         = (BIT(7) | BIT(5) | WIFI_CTRL_TYPE),
  82        WIFI_RTS            = (BIT(7) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
  83        WIFI_CTS            = (BIT(7) | BIT(6) | WIFI_CTRL_TYPE),
  84        WIFI_ACK            = (BIT(7) | BIT(6) | BIT(4) | WIFI_CTRL_TYPE),
  85        WIFI_CFEND          = (BIT(7) | BIT(6) | BIT(5) | WIFI_CTRL_TYPE),
  86        WIFI_CFEND_CFACK = (BIT(7) | BIT(6) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
  87        /* below is for data frame */
  88        WIFI_DATA           = (0 | WIFI_DATA_TYPE),
  89        WIFI_DATA_CFACK     = (BIT(4) | WIFI_DATA_TYPE),
  90        WIFI_DATA_CFPOLL    = (BIT(5) | WIFI_DATA_TYPE),
  91        WIFI_DATA_CFACKPOLL = (BIT(5) | BIT(4) | WIFI_DATA_TYPE),
  92        WIFI_DATA_NULL      = (BIT(6) | WIFI_DATA_TYPE),
  93        WIFI_CF_ACK         = (BIT(6) | BIT(4) | WIFI_DATA_TYPE),
  94        WIFI_CF_POLL        = (BIT(6) | BIT(5) | WIFI_DATA_TYPE),
  95        WIFI_CF_ACKPOLL     = (BIT(6) | BIT(5) | BIT(4) | WIFI_DATA_TYPE),
  96};
  97
  98enum WIFI_REASON_CODE   {
  99        _RSON_RESERVED_                 = 0,
 100        _RSON_UNSPECIFIED_              = 1,
 101        _RSON_AUTH_NO_LONGER_VALID_     = 2,
 102        _RSON_DEAUTH_STA_LEAVING_       = 3,
 103        _RSON_INACTIVITY_               = 4,
 104        _RSON_UNABLE_HANDLE_            = 5,
 105        _RSON_CLS2_                     = 6,
 106        _RSON_CLS3_                     = 7,
 107        _RSON_DISAOC_STA_LEAVING_       = 8,
 108        _RSON_ASOC_NOT_AUTH_            = 9,
 109        /* WPA reason */
 110        _RSON_INVALID_IE_               = 13,
 111        _RSON_MIC_FAILURE_              = 14,
 112        _RSON_4WAY_HNDSHK_TIMEOUT_      = 15,
 113        _RSON_GROUP_KEY_UPDATE_TIMEOUT_ = 16,
 114        _RSON_DIFF_IE_                  = 17,
 115        _RSON_MLTCST_CIPHER_NOT_VALID_  = 18,
 116        _RSON_UNICST_CIPHER_NOT_VALID_  = 19,
 117        _RSON_AKMP_NOT_VALID_           = 20,
 118        _RSON_UNSUPPORT_RSNE_VER_       = 21,
 119        _RSON_INVALID_RSNE_CAP_         = 22,
 120        _RSON_IEEE_802DOT1X_AUTH_FAIL_  = 23,
 121        /* below are Realtek definitions */
 122        _RSON_PMK_NOT_AVAILABLE_        = 24,
 123};
 124
 125enum WIFI_STATUS_CODE {
 126        _STATS_SUCCESSFUL_              = 0,
 127        _STATS_FAILURE_                 = 1,
 128        _STATS_CAP_FAIL_                = 10,
 129        _STATS_NO_ASOC_                 = 11,
 130        _STATS_OTHER_                   = 12,
 131        _STATS_NO_SUPP_ALG_             = 13,
 132        _STATS_OUT_OF_AUTH_SEQ_         = 14,
 133        _STATS_CHALLENGE_FAIL_          = 15,
 134        _STATS_AUTH_TIMEOUT_            = 16,
 135        _STATS_UNABLE_HANDLE_STA_       = 17,
 136        _STATS_RATE_FAIL_               = 18,
 137};
 138
 139enum WIFI_REG_DOMAIN {
 140        DOMAIN_FCC      = 1,
 141        DOMAIN_IC       = 2,
 142        DOMAIN_ETSI     = 3,
 143        DOMAIN_SPAIN    = 4,
 144        DOMAIN_FRANCE   = 5,
 145        DOMAIN_MKK      = 6,
 146        DOMAIN_ISRAEL   = 7,
 147        DOMAIN_MKK1     = 8,
 148        DOMAIN_MKK2     = 9,
 149        DOMAIN_MKK3     = 10,
 150        DOMAIN_MAX
 151};
 152
 153#define _TO_DS_         BIT(8)
 154#define _FROM_DS_       BIT(9)
 155#define _MORE_FRAG_     BIT(10)
 156#define _RETRY_         BIT(11)
 157#define _PWRMGT_        BIT(12)
 158#define _MORE_DATA_     BIT(13)
 159#define _PRIVACY_       BIT(14)
 160#define _ORDER_         BIT(15)
 161
 162#define SetToDs(pbuf) ({ \
 163        *(unsigned short *)(pbuf) |= cpu_to_le16(_TO_DS_); \
 164})
 165
 166#define GetToDs(pbuf)   (((*(unsigned short *)(pbuf)) & \
 167                        le16_to_cpu(_TO_DS_)) != 0)
 168
 169#define ClearToDs(pbuf) ({ \
 170        *(unsigned short *)(pbuf) &= (~cpu_to_le16(_TO_DS_)); \
 171})
 172
 173#define SetFrDs(pbuf) ({ \
 174        *(unsigned short *)(pbuf) |= cpu_to_le16(_FROM_DS_); \
 175})
 176
 177#define GetFrDs(pbuf)   (((*(unsigned short *)(pbuf)) & \
 178                        le16_to_cpu(_FROM_DS_)) != 0)
 179
 180#define ClearFrDs(pbuf) ({ \
 181        *(unsigned short *)(pbuf) &= (~cpu_to_le16(_FROM_DS_)); \
 182})
 183
 184#define get_tofr_ds(pframe)     ((GetToDs(pframe) << 1) | GetFrDs(pframe))
 185
 186
 187#define SetMFrag(pbuf) ({ \
 188        *(unsigned short *)(pbuf) |= cpu_to_le16(_MORE_FRAG_); \
 189})
 190
 191#define GetMFrag(pbuf)  (((*(unsigned short *)(pbuf)) & \
 192                        le16_to_cpu(_MORE_FRAG_)) != 0)
 193
 194#define ClearMFrag(pbuf) ({ \
 195        *(unsigned short *)(pbuf) &= (~cpu_to_le16(_MORE_FRAG_)); \
 196})
 197
 198#define SetRetry(pbuf) ({ \
 199        *(unsigned short *)(pbuf) |= cpu_to_le16(_RETRY_); \
 200})
 201
 202#define GetRetry(pbuf)  (((*(unsigned short *)(pbuf)) & \
 203                        le16_to_cpu(_RETRY_)) != 0)
 204
 205#define ClearRetry(pbuf) ({ \
 206        *(unsigned short *)(pbuf) &= (~cpu_to_le16(_RETRY_)); \
 207})
 208
 209#define SetPwrMgt(pbuf) ({ \
 210        *(unsigned short *)(pbuf) |= cpu_to_le16(_PWRMGT_); \
 211})
 212
 213#define GetPwrMgt(pbuf) (((*(unsigned short *)(pbuf)) & \
 214                        le16_to_cpu(_PWRMGT_)) != 0)
 215
 216#define ClearPwrMgt(pbuf) ({ \
 217        *(unsigned short *)(pbuf) &= (~cpu_to_le16(_PWRMGT_)); \
 218})
 219
 220#define SetMData(pbuf) ({ \
 221        *(unsigned short *)(pbuf) |= cpu_to_le16(_MORE_DATA_); \
 222})
 223
 224#define GetMData(pbuf)  (((*(unsigned short *)(pbuf)) & \
 225                        le16_to_cpu(_MORE_DATA_)) != 0)
 226
 227#define ClearMData(pbuf) ({ \
 228        *(unsigned short *)(pbuf) &= (~cpu_to_le16(_MORE_DATA_)); \
 229})
 230
 231#define SetPrivacy(pbuf) ({ \
 232        *(unsigned short *)(pbuf) |= cpu_to_le16(_PRIVACY_); \
 233})
 234
 235#define GetPrivacy(pbuf)        (((*(unsigned short *)(pbuf)) & \
 236                                le16_to_cpu(_PRIVACY_)) != 0)
 237
 238#define ClearPrivacy(pbuf) ({ \
 239        *(unsigned short *)(pbuf) &= (~cpu_to_le16(_PRIVACY_)); \
 240})
 241
 242
 243#define GetOrder(pbuf)  (((*(unsigned short *)(pbuf)) & \
 244                        le16_to_cpu(_ORDER_)) != 0)
 245
 246#define GetFrameType(pbuf)      (le16_to_cpu(*(unsigned short *)(pbuf)) & \
 247                                (BIT(3) | BIT(2)))
 248
 249#define SetFrameType(pbuf, type)        \
 250        do {    \
 251                *(unsigned short *)(pbuf) &= __constant_cpu_to_le16(~(BIT(3) | \
 252                BIT(2))); \
 253                *(unsigned short *)(pbuf) |= __constant_cpu_to_le16(type); \
 254        } while (0)
 255
 256#define GetFrameSubType(pbuf)   (cpu_to_le16(*(unsigned short *)(pbuf)) & \
 257                                (BIT(7) | BIT(6) | BIT(5) | BIT(4) | BIT(3) | \
 258                                BIT(2)))
 259
 260#define SetFrameSubType(pbuf, type) \
 261        do {    \
 262                *(unsigned short *)(pbuf) &= cpu_to_le16(~(BIT(7) | BIT(6) | \
 263                BIT(5) | BIT(4) | BIT(3) | BIT(2))); \
 264                *(unsigned short *)(pbuf) |= cpu_to_le16(type); \
 265        } while (0)
 266
 267#define GetSequence(pbuf)       (cpu_to_le16(*(unsigned short *)\
 268                                ((addr_t)(pbuf) + 22)) >> 4)
 269
 270#define GetFragNum(pbuf)        (cpu_to_le16(*(unsigned short *)((addr_t)\
 271                                (pbuf) + 22)) & 0x0f)
 272
 273#define GetTupleCache(pbuf)     (cpu_to_le16(*(unsigned short *)\
 274                                ((addr_t)(pbuf) + 22)))
 275
 276#define SetFragNum(pbuf, num) ({ \
 277        *(unsigned short *)((addr_t)(pbuf) + 22) = \
 278        ((*(unsigned short *)((addr_t)(pbuf) + 22)) & \
 279        le16_to_cpu(~(0x000f))) | \
 280        cpu_to_le16(0x0f & (num));     \
 281})
 282
 283#define SetSeqNum(pbuf, num) ({ \
 284        *(unsigned short *)((addr_t)(pbuf) + 22) = \
 285        ((*(unsigned short *)((addr_t)(pbuf) + 22)) & \
 286        le16_to_cpu((unsigned short)0x000f)) | \
 287        le16_to_cpu((unsigned short)(0xfff0 & (num << 4))); \
 288})
 289
 290#define SetDuration(pbuf, dur) ({ \
 291        *(unsigned short *)((addr_t)(pbuf) + 2) |= \
 292        cpu_to_le16(0xffff & (dur)); \
 293})
 294
 295#define SetPriority(pbuf, tid) ({ \
 296        *(unsigned short *)(pbuf) |= cpu_to_le16(tid & 0xf); \
 297})
 298
 299#define GetPriority(pbuf)       ((le16_to_cpu(*(unsigned short *)(pbuf))) & 0xf)
 300
 301#define SetAckpolicy(pbuf, ack) ({ \
 302        *(unsigned short *)(pbuf) |= cpu_to_le16((ack & 3) << 5); \
 303})
 304
 305#define GetAckpolicy(pbuf) (((le16_to_cpu(*(unsigned short *)pbuf)) >> 5) & 0x3)
 306
 307#define GetAMsdu(pbuf) (((le16_to_cpu(*(unsigned short *)pbuf)) >> 7) & 0x1)
 308
 309#define SetAMsdu(pbuf, amsdu) ({ \
 310        *(unsigned short *)(pbuf) |= cpu_to_le16((amsdu & 1) << 7); \
 311})
 312
 313#define GetAid(pbuf)    (cpu_to_le16(*(unsigned short *)((addr_t)(pbuf) + 2)) \
 314                        & 0x3fff)
 315
 316#define GetTid(pbuf)    (cpu_to_le16(*(unsigned short *)((addr_t)(pbuf) + \
 317                        (((GetToDs(pbuf) << 1)|GetFrDs(pbuf)) == 3 ? \
 318                        30 : 24))) & 0x000f)
 319
 320#define GetAddr1Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 4))
 321
 322#define GetAddr2Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 10))
 323
 324#define GetAddr3Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 16))
 325
 326#define GetAddr4Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 24))
 327
 328
 329
 330static inline int IS_MCAST(unsigned char *da)
 331{
 332        if ((*da) & 0x01)
 333                return true;
 334        else
 335                return false;
 336}
 337
 338
 339static inline unsigned char *get_da(unsigned char *pframe)
 340{
 341        unsigned char   *da;
 342        unsigned int    to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
 343
 344        switch (to_fr_ds) {
 345        case 0x00:      /* ToDs=0, FromDs=0 */
 346                da = GetAddr1Ptr(pframe);
 347                break;
 348        case 0x01:      /* ToDs=0, FromDs=1 */
 349                da = GetAddr1Ptr(pframe);
 350                break;
 351        case 0x02:      /* ToDs=1, FromDs=0 */
 352                da = GetAddr3Ptr(pframe);
 353                break;
 354        default:        /* ToDs=1, FromDs=1 */
 355                da = GetAddr3Ptr(pframe);
 356                break;
 357        }
 358        return da;
 359}
 360
 361
 362static inline unsigned char *get_sa(unsigned char *pframe)
 363{
 364        unsigned char   *sa;
 365        unsigned int    to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
 366
 367        switch (to_fr_ds) {
 368        case 0x00:      /* ToDs=0, FromDs=0 */
 369                sa = GetAddr2Ptr(pframe);
 370                break;
 371        case 0x01:      /* ToDs=0, FromDs=1 */
 372                sa = GetAddr3Ptr(pframe);
 373                break;
 374        case 0x02:      /* ToDs=1, FromDs=0 */
 375                sa = GetAddr2Ptr(pframe);
 376                break;
 377        default:        /* ToDs=1, FromDs=1 */
 378                sa = GetAddr4Ptr(pframe);
 379                break;
 380        }
 381
 382        return sa;
 383}
 384
 385static inline unsigned char *get_hdr_bssid(unsigned char *pframe)
 386{
 387        unsigned char   *sa;
 388        unsigned int    to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
 389
 390        switch (to_fr_ds) {
 391        case 0x00:      /* ToDs=0, FromDs=0 */
 392                sa = GetAddr3Ptr(pframe);
 393                break;
 394        case 0x01:      /* ToDs=0, FromDs=1 */
 395                sa = GetAddr2Ptr(pframe);
 396                break;
 397        case 0x02:      /* ToDs=1, FromDs=0 */
 398                sa = GetAddr1Ptr(pframe);
 399                break;
 400        default:        /* ToDs=1, FromDs=1 */
 401                sa = NULL;
 402                break;
 403        }
 404        return sa;
 405}
 406
 407
 408
 409/*-----------------------------------------------------------------------------
 410                        Below is for the security related definition
 411------------------------------------------------------------------------------*/
 412#define _RESERVED_FRAME_TYPE_   0
 413#define _SKB_FRAME_TYPE_        2
 414#define _PRE_ALLOCMEM_          1
 415#define _PRE_ALLOCHDR_          3
 416#define _PRE_ALLOCLLCHDR_       4
 417#define _PRE_ALLOCICVHDR_       5
 418#define _PRE_ALLOCMICHDR_       6
 419
 420#define _SIFSTIME_              ((priv->pmib->BssType.net_work_type & \
 421                                WIRELESS_11A) ? 16 : 10)
 422#define _ACKCTSLNG_             14      /*14 bytes long, including crclng */
 423#define _CRCLNG_                4
 424
 425#define _ASOCREQ_IE_OFFSET_     4       /* excluding wlan_hdr */
 426#define _ASOCRSP_IE_OFFSET_     6
 427#define _REASOCREQ_IE_OFFSET_   10
 428#define _REASOCRSP_IE_OFFSET_   6
 429#define _PROBEREQ_IE_OFFSET_    0
 430#define _PROBERSP_IE_OFFSET_    12
 431#define _AUTH_IE_OFFSET_        6
 432#define _DEAUTH_IE_OFFSET_      0
 433#define _BEACON_IE_OFFSET_      12
 434
 435#define _FIXED_IE_LENGTH_       _BEACON_IE_OFFSET_
 436
 437#define _SSID_IE_               0
 438#define _SUPPORTEDRATES_IE_     1
 439#define _DSSET_IE_              3
 440#define _IBSS_PARA_IE_          6
 441#define _ERPINFO_IE_            42
 442#define _EXT_SUPPORTEDRATES_IE_ 50
 443
 444#define _HT_CAPABILITY_IE_      45
 445#define _HT_EXTRA_INFO_IE_      61
 446#define _HT_ADD_INFO_IE_        61 /* _HT_EXTRA_INFO_IE_ */
 447
 448#define _VENDOR_SPECIFIC_IE_    221
 449
 450#define _RESERVED47_            47
 451
 452
 453/* ---------------------------------------------------------------------------
 454                                        Below is the fixed elements...
 455-----------------------------------------------------------------------------*/
 456#define _AUTH_ALGM_NUM_                 2
 457#define _AUTH_SEQ_NUM_                  2
 458#define _BEACON_ITERVAL_                2
 459#define _CAPABILITY_                    2
 460#define _CURRENT_APADDR_                6
 461#define _LISTEN_INTERVAL_               2
 462#define _RSON_CODE_                             2
 463#define _ASOC_ID_                               2
 464#define _STATUS_CODE_                   2
 465#define _TIMESTAMP_                             8
 466
 467#define AUTH_ODD_TO                             0
 468#define AUTH_EVEN_TO                    1
 469
 470#define WLAN_ETHCONV_ENCAP              1
 471#define WLAN_ETHCONV_RFC1042    2
 472#define WLAN_ETHCONV_8021h              3
 473
 474#define cap_ESS BIT(0)
 475#define cap_IBSS BIT(1)
 476#define cap_CFPollable BIT(2)
 477#define cap_CFRequest BIT(3)
 478#define cap_Privacy BIT(4)
 479#define cap_ShortPremble BIT(5)
 480
 481/*-----------------------------------------------------------------------------
 482                                Below is the definition for 802.11i / 802.1x
 483------------------------------------------------------------------------------*/
 484#define _IEEE8021X_MGT_                 1       /*WPA */
 485#define _IEEE8021X_PSK_                 2       /* WPA with pre-shared key */
 486
 487/*-----------------------------------------------------------------------------
 488                                Below is the definition for WMM
 489------------------------------------------------------------------------------*/
 490#define _WMM_IE_Length_                         7  /* for WMM STA */
 491#define _WMM_Para_Element_Length_               24
 492
 493
 494/*-----------------------------------------------------------------------------
 495                                Below is the definition for 802.11n
 496------------------------------------------------------------------------------*/
 497
 498/* block-ack parameters */
 499#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
 500#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
 501#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
 502#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 503#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 504
 505#define SetOrderBit(pbuf) ({ \
 506        *(unsigned short *)(pbuf) |= cpu_to_le16(_ORDER_); \
 507})
 508
 509#define GetOrderBit(pbuf)       (((*(unsigned short *)(pbuf)) & \
 510                                le16_to_cpu(_ORDER_)) != 0)
 511
 512
 513/**
 514 * struct ieee80211_bar - HT Block Ack Request
 515 *
 516 * This structure refers to "HT BlockAckReq" as
 517 * described in 802.11n draft section 7.2.1.7.1
 518 */
 519struct ieee80211_bar {
 520        unsigned short frame_control;
 521        unsigned short duration;
 522        unsigned char ra[6];
 523        unsigned char ta[6];
 524        unsigned short control;
 525        unsigned short start_seq_num;
 526} __packed;
 527
 528/* 802.11 BAR control masks */
 529#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL     0x0000
 530#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA  0x0004
 531
 532
 533 /**
 534 * struct ieee80211_ht_cap - HT capabilities
 535 *
 536 * This structure refers to "HT capabilities element" as
 537 * described in 802.11n draft section 7.3.2.52
 538 */
 539
 540struct ieee80211_ht_cap {
 541        unsigned short  cap_info;
 542        unsigned char   ampdu_params_info;
 543        unsigned char   supp_mcs_set[16];
 544        unsigned short  extended_ht_cap_info;
 545        unsigned int            tx_BF_cap_info;
 546        unsigned char          antenna_selection_info;
 547} __packed;
 548
 549/**
 550 * struct ieee80211_ht_cap - HT additional information
 551 *
 552 * This structure refers to "HT information element" as
 553 * described in 802.11n draft section 7.3.2.53
 554 */
 555struct ieee80211_ht_addt_info {
 556        unsigned char   control_chan;
 557        unsigned char           ht_param;
 558        unsigned short  operation_mode;
 559        unsigned short  stbc_param;
 560        unsigned char           basic_set[16];
 561} __packed;
 562
 563/* 802.11n HT capabilities masks */
 564#define IEEE80211_HT_CAP_SUP_WIDTH              0x0002
 565#define IEEE80211_HT_CAP_SM_PS                  0x000C
 566#define IEEE80211_HT_CAP_GRN_FLD                0x0010
 567#define IEEE80211_HT_CAP_SGI_20                 0x0020
 568#define IEEE80211_HT_CAP_SGI_40                 0x0040
 569#define IEEE80211_HT_CAP_TX_STBC                        0x0080
 570#define IEEE80211_HT_CAP_DELAY_BA               0x0400
 571#define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
 572#define IEEE80211_HT_CAP_DSSSCCK40              0x1000
 573/* 802.11n HT capability AMPDU settings */
 574#define IEEE80211_HT_CAP_AMPDU_FACTOR           0x03
 575#define IEEE80211_HT_CAP_AMPDU_DENSITY          0x1C
 576/* 802.11n HT capability MSC set */
 577#define IEEE80211_SUPP_MCS_SET_UEQM             4
 578#define IEEE80211_HT_CAP_MAX_STREAMS            4
 579#define IEEE80211_SUPP_MCS_SET_LEN              10
 580/* maximum streams the spec allows */
 581#define IEEE80211_HT_CAP_MCS_TX_DEFINED         0x01
 582#define IEEE80211_HT_CAP_MCS_TX_RX_DIFF         0x02
 583#define IEEE80211_HT_CAP_MCS_TX_STREAMS         0x0C
 584#define IEEE80211_HT_CAP_MCS_TX_UEQM            0x10
 585/* 802.11n HT IE masks */
 586#define IEEE80211_HT_IE_CHA_SEC_OFFSET          0x03
 587#define IEEE80211_HT_IE_CHA_SEC_NONE            0x00
 588#define IEEE80211_HT_IE_CHA_SEC_ABOVE           0x01
 589#define IEEE80211_HT_IE_CHA_SEC_BELOW           0x03
 590#define IEEE80211_HT_IE_CHA_WIDTH               0x04
 591#define IEEE80211_HT_IE_HT_PROTECTION           0x0003
 592#define IEEE80211_HT_IE_NON_GF_STA_PRSNT        0x0004
 593#define IEEE80211_HT_IE_NON_HT_STA_PRSNT        0x0010
 594
 595/* block-ack parameters */
 596#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
 597#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
 598#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
 599#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 600#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 601
 602/*
 603 * A-PMDU buffer sizes
 604 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
 605 */
 606#define IEEE80211_MIN_AMPDU_BUF 0x8
 607#define IEEE80211_MAX_AMPDU_BUF 0x40
 608
 609
 610/* Spatial Multiplexing Power Save Modes */
 611#define WLAN_HT_CAP_SM_PS_STATIC                0
 612#define WLAN_HT_CAP_SM_PS_DYNAMIC       1
 613#define WLAN_HT_CAP_SM_PS_INVALID       2
 614#define WLAN_HT_CAP_SM_PS_DISABLED      3
 615
 616#endif /* _WIFI_H_ */
 617
 618