drivers/staging/rtl8712/wifi.h

   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 #define WLAN_IEEE_OUI_LEN       3
  32 #define WLAN_CRC_LEN            4
  33 #define WLAN_BSSID_LEN          6
  34 #define WLAN_BSS_TS_LEN         8
  35 #define WLAN_HDR_A3_LEN         24
  36 #define WLAN_HDR_A4_LEN         30
  37 #define WLAN_HDR_A3_QOS_LEN     26
  38 #define WLAN_HDR_A4_QOS_LEN     32
  39 #define WLAN_SSID_MAXLEN        32
  40 #define WLAN_DATA_MAXLEN        2312
  41
  42 #define WLAN_A3_PN_OFFSET       24
  43 #define WLAN_A4_PN_OFFSET       30
  44
  45 #define WLAN_MIN_ETHFRM_LEN     60
  46 #define WLAN_MAX_ETHFRM_LEN     1514
  47
  48 #define P80211CAPTURE_VERSION   0x80211001
  49
  50 enum WIFI_FRAME_TYPE {
  51         WIFI_MGT_TYPE  =        (0),
  52         WIFI_CTRL_TYPE =        (BIT(2)),
  53         WIFI_DATA_TYPE =        (BIT(3)),
  54         WIFI_QOS_DATA_TYPE      = (BIT(7)|BIT(3)),      /*!< QoS Data */
  55 };
  56
  57 enum WIFI_FRAME_SUBTYPE {
  58         /* below is for mgt frame */
  59         WIFI_ASSOCREQ       = (0 | WIFI_MGT_TYPE),
  60         WIFI_ASSOCRSP       = (BIT(4) | WIFI_MGT_TYPE),
  61         WIFI_REASSOCREQ     = (BIT(5) | WIFI_MGT_TYPE),
  62         WIFI_REASSOCRSP     = (BIT(5) | BIT(4) | WIFI_MGT_TYPE),
  63         WIFI_PROBEREQ       = (BIT(6) | WIFI_MGT_TYPE),
  64         WIFI_PROBERSP       = (BIT(6) | BIT(4) | WIFI_MGT_TYPE),
  65         WIFI_BEACON         = (BIT(7) | WIFI_MGT_TYPE),
  66         WIFI_ATIM           = (BIT(7) | BIT(4) | WIFI_MGT_TYPE),
  67         WIFI_DISASSOC       = (BIT(7) | BIT(5) | WIFI_MGT_TYPE),
  68         WIFI_AUTH           = (BIT(7) | BIT(5) | BIT(4) | WIFI_MGT_TYPE),
  69         WIFI_DEAUTH         = (BIT(7) | BIT(6) | WIFI_MGT_TYPE),
  70         WIFI_ACTION         = (BIT(7) | BIT(6) | BIT(4) | WIFI_MGT_TYPE),
  71         /* below is for control frame */
  72         WIFI_PSPOLL         = (BIT(7) | BIT(5) | WIFI_CTRL_TYPE),
  73         WIFI_RTS            = (BIT(7) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
  74         WIFI_CTS            = (BIT(7) | BIT(6) | WIFI_CTRL_TYPE),
  75         WIFI_ACK            = (BIT(7) | BIT(6) | BIT(4) | WIFI_CTRL_TYPE),
  76         WIFI_CFEND          = (BIT(7) | BIT(6) | BIT(5) | WIFI_CTRL_TYPE),
  77         WIFI_CFEND_CFACK = (BIT(7) | BIT(6) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
  78         /* below is for data frame */
  79         WIFI_DATA           = (0 | WIFI_DATA_TYPE),
  80         WIFI_DATA_CFACK     = (BIT(4) | WIFI_DATA_TYPE),
  81         WIFI_DATA_CFPOLL    = (BIT(5) | WIFI_DATA_TYPE),
  82         WIFI_DATA_CFACKPOLL = (BIT(5) | BIT(4) | WIFI_DATA_TYPE),
  83         WIFI_DATA_NULL      = (BIT(6) | WIFI_DATA_TYPE),
  84         WIFI_CF_ACK         = (BIT(6) | BIT(4) | WIFI_DATA_TYPE),
  85         WIFI_CF_POLL        = (BIT(6) | BIT(5) | WIFI_DATA_TYPE),
  86         WIFI_CF_ACKPOLL     = (BIT(6) | BIT(5) | BIT(4) | WIFI_DATA_TYPE),
  87 };
  88
  89 enum WIFI_REASON_CODE   {
  90         _RSON_RESERVED_                 = 0,
  91         _RSON_UNSPECIFIED_              = 1,
  92         _RSON_AUTH_NO_LONGER_VALID_     = 2,
  93         _RSON_DEAUTH_STA_LEAVING_       = 3,
  94         _RSON_INACTIVITY_               = 4,
  95         _RSON_UNABLE_HANDLE_            = 5,
  96         _RSON_CLS2_                     = 6,
  97         _RSON_CLS3_                     = 7,
  98         _RSON_DISAOC_STA_LEAVING_       = 8,
  99         _RSON_ASOC_NOT_AUTH_            = 9,
 100         /* WPA reason */
 101         _RSON_INVALID_IE_               = 13,
 102         _RSON_MIC_FAILURE_              = 14,
 103         _RSON_4WAY_HNDSHK_TIMEOUT_      = 15,
 104         _RSON_GROUP_KEY_UPDATE_TIMEOUT_ = 16,
 105         _RSON_DIFF_IE_                  = 17,
 106         _RSON_MLTCST_CIPHER_NOT_VALID_  = 18,
 107         _RSON_UNICST_CIPHER_NOT_VALID_  = 19,
 108         _RSON_AKMP_NOT_VALID_           = 20,
 109         _RSON_UNSUPPORT_RSNE_VER_       = 21,
 110         _RSON_INVALID_RSNE_CAP_         = 22,
 111         _RSON_IEEE_802DOT1X_AUTH_FAIL_  = 23,
 112         /* below are Realtek definitions */
 113         _RSON_PMK_NOT_AVAILABLE_        = 24,
 114 };
 115
 116 enum WIFI_STATUS_CODE {
 117         _STATS_SUCCESSFUL_              = 0,
 118         _STATS_FAILURE_                 = 1,
 119         _STATS_CAP_FAIL_                = 10,
 120         _STATS_NO_ASOC_                 = 11,
 121         _STATS_OTHER_                   = 12,
 122         _STATS_NO_SUPP_ALG_             = 13,
 123         _STATS_OUT_OF_AUTH_SEQ_         = 14,
 124         _STATS_CHALLENGE_FAIL_          = 15,
 125         _STATS_AUTH_TIMEOUT_            = 16,
 126         _STATS_UNABLE_HANDLE_STA_       = 17,
 127         _STATS_RATE_FAIL_               = 18,
 128 };
 129
 130 enum WIFI_REG_DOMAIN {
 131         DOMAIN_FCC      = 1,
 132         DOMAIN_IC       = 2,
 133         DOMAIN_ETSI     = 3,
 134         DOMAIN_SPAIN    = 4,
 135         DOMAIN_FRANCE   = 5,
 136         DOMAIN_MKK      = 6,
 137         DOMAIN_ISRAEL   = 7,
 138         DOMAIN_MKK1     = 8,
 139         DOMAIN_MKK2     = 9,
 140         DOMAIN_MKK3     = 10,
 141         DOMAIN_MAX
 142 };
 143
 144 #define _TO_DS_         BIT(8)
 145 #define _FROM_DS_       BIT(9)
 146 #define _MORE_FRAG_     BIT(10)
 147 #define _RETRY_         BIT(11)
 148 #define _PWRMGT_        BIT(12)
 149 #define _MORE_DATA_     BIT(13)
 150 #define _PRIVACY_       BIT(14)
 151 #define _ORDER_         BIT(15)
 152
 153 #define SetToDs(pbuf) ({ \
 154         *(__le16 *)(pbuf) |= cpu_to_le16(_TO_DS_); \
 155 })
 156
 157 #define GetToDs(pbuf)   (((*(__le16 *)(pbuf)) & cpu_to_le16(_TO_DS_)) != 0)
 158
 159 #define ClearToDs(pbuf) ({ \
 160         *(__le16 *)(pbuf) &= (~cpu_to_le16(_TO_DS_)); \
 161 })
 162
 163 #define SetFrDs(pbuf) ({ \
 164         *(__le16 *)(pbuf) |= cpu_to_le16(_FROM_DS_); \
 165 })
 166
 167 #define GetFrDs(pbuf)   (((*(__le16 *)(pbuf)) & cpu_to_le16(_FROM_DS_)) != 0)
 168
 169 #define ClearFrDs(pbuf) ({ \
 170         *(__le16 *)(pbuf) &= (~cpu_to_le16(_FROM_DS_)); \
 171 })
 172
 173 static inline unsigned char get_tofr_ds(unsigned char *pframe)
 174 {
 175         return ((GetToDs(pframe) << 1) | GetFrDs(pframe));
 176 }
 177
 178 #define SetMFrag(pbuf) ({ \
 179         *(__le16 *)(pbuf) |= cpu_to_le16(_MORE_FRAG_); \
 180 })
 181
 182 #define GetMFrag(pbuf)  (((*(__le16 *)(pbuf)) & cpu_to_le16(_MORE_FRAG_)) != 0)
 183
 184 #define ClearMFrag(pbuf) ({ \
 185         *(__le16 *)(pbuf) &= (~cpu_to_le16(_MORE_FRAG_)); \
 186 })
 187
 188 #define SetRetry(pbuf) ({ \
 189         *(__le16 *)(pbuf) |= cpu_to_le16(_RETRY_); \
 190 })
 191
 192 #define GetRetry(pbuf)  (((*(__le16 *)(pbuf)) & cpu_to_le16(_RETRY_)) != 0)
 193
 194 #define ClearRetry(pbuf) ({ \
 195         *(__le16 *)(pbuf) &= (~cpu_to_le16(_RETRY_)); \
 196 })
 197
 198 #define SetPwrMgt(pbuf) ({ \
 199         *(__le16 *)(pbuf) |= cpu_to_le16(_PWRMGT_); \
 200 })
 201
 202 #define GetPwrMgt(pbuf) (((*(__le16 *)(pbuf)) & \
 203                         cpu_to_le16(_PWRMGT_)) != 0)
 204
 205 #define ClearPwrMgt(pbuf) ({ \
 206         *(__le16 *)(pbuf) &= (~cpu_to_le16(_PWRMGT_)); \
 207 })
 208
 209 #define SetMData(pbuf) ({ \
 210         *(__le16 *)(pbuf) |= cpu_to_le16(_MORE_DATA_); \
 211 })
 212
 213 #define GetMData(pbuf)  (((*(__le16 *)(pbuf)) & \
 214                         cpu_to_le16(_MORE_DATA_)) != 0)
 215
 216 #define ClearMData(pbuf) ({ \
 217         *(__le16 *)(pbuf) &= (~cpu_to_le16(_MORE_DATA_)); \
 218 })
 219
 220 #define SetPrivacy(pbuf) ({ \
 221         *(__le16 *)(pbuf) |= cpu_to_le16(_PRIVACY_); \
 222 })
 223
 224 #define GetPrivacy(pbuf)        (((*(__le16 *)(pbuf)) & \
 225                                 cpu_to_le16(_PRIVACY_)) != 0)
 226
 227 #define GetOrder(pbuf)  (((*(__le16 *)(pbuf)) & \
 228                         cpu_to_le16(_ORDER_)) != 0)
 229
 230 #define GetFrameType(pbuf)      (le16_to_cpu(*(__le16 *)(pbuf)) & \
 231                                 (BIT(3) | BIT(2)))
 232
 233 #define SetFrameType(pbuf, type)        \
 234         do {    \
 235                 *(__le16 *)(pbuf) &= cpu_to_le16(~(BIT(3) | \
 236                 BIT(2))); \
 237                 *(__le16 *)(pbuf) |= cpu_to_le16(type); \
 238         } while (0)
 239
 240 #define GetFrameSubType(pbuf)   (le16_to_cpu(*(__le16 *)(pbuf)) & \
 241                                 (BIT(7) | BIT(6) | BIT(5) | BIT(4) | BIT(3) | \
 242                                 BIT(2)))
 243
 244 #define SetFrameSubType(pbuf, type) \
 245         do {    \
 246                 *(__le16 *)(pbuf) &= cpu_to_le16(~(BIT(7) | BIT(6) | \
 247                 BIT(5) | BIT(4) | BIT(3) | BIT(2))); \
 248                 *(__le16 *)(pbuf) |= cpu_to_le16(type); \
 249         } while (0)
 250
 251 #define GetSequence(pbuf)       (le16_to_cpu(*(__le16 *)\
 252                                 ((addr_t)(pbuf) + 22)) >> 4)
 253
 254 #define GetFragNum(pbuf)        (le16_to_cpu(*(__le16 *)((addr_t)\
 255                                 (pbuf) + 22)) & 0x0f)
 256
 257 #define SetSeqNum(pbuf, num) ({ \
 258         *(__le16 *)((addr_t)(pbuf) + 22) = \
 259         cpu_to_le16((le16_to_cpu(*(__le16 *)((addr_t)(pbuf) + 22)) & \
 260         0x000f) | (0xfff0 & (num << 4))); \
 261 })
 262
 263 #define SetDuration(pbuf, dur) ({ \
 264         *(__le16 *)((addr_t)(pbuf) + 2) |= \
 265         cpu_to_le16(0xffff & (dur)); \
 266 })
 267
 268 #define SetPriority(pbuf, tid) ({ \
 269         *(__le16 *)(pbuf) |= cpu_to_le16(tid & 0xf); \
 270 })
 271
 272 #define GetPriority(pbuf)       ((le16_to_cpu(*(__le16 *)(pbuf))) & 0xf)
 273
 274 #define SetAckpolicy(pbuf, ack) ({ \
 275         *(__le16 *)(pbuf) |= cpu_to_le16((ack & 3) << 5); \
 276 })
 277
 278 #define GetAckpolicy(pbuf) (((le16_to_cpu(*(__le16 *)pbuf)) >> 5) & 0x3)
 279
 280 #define GetAMsdu(pbuf) (((le16_to_cpu(*(__le16 *)pbuf)) >> 7) & 0x1)
 281
 282 #define GetAid(pbuf)    (cpu_to_le16(*(__le16 *)((addr_t)(pbuf) + 2)) \
 283                         & 0x3fff)
 284
 285 #define GetAddr1Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 4))
 286
 287 #define GetAddr2Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 10))
 288
 289 #define GetAddr3Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 16))
 290
 291 #define GetAddr4Ptr(pbuf)       ((unsigned char *)((addr_t)(pbuf) + 24))
 292
 293
 294
 295 static inline int IS_MCAST(unsigned char *da)
 296 {
 297         if ((*da) & 0x01)
 298                 return true;
 299         else
 300                 return false;
 301 }
 302
 303
 304 static inline unsigned char *get_da(unsigned char *pframe)
 305 {
 306         unsigned char   *da;
 307         unsigned int    to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
 308
 309         switch (to_fr_ds) {
 310         case 0x00:      /* ToDs=0, FromDs=0 */
 311                 da = GetAddr1Ptr(pframe);
 312                 break;
 313         case 0x01:      /* ToDs=0, FromDs=1 */
 314                 da = GetAddr1Ptr(pframe);
 315                 break;
 316         case 0x02:      /* ToDs=1, FromDs=0 */
 317                 da = GetAddr3Ptr(pframe);
 318                 break;
 319         default:        /* ToDs=1, FromDs=1 */
 320                 da = GetAddr3Ptr(pframe);
 321                 break;
 322         }
 323         return da;
 324 }
 325
 326
 327 static inline unsigned char *get_sa(unsigned char *pframe)
 328 {
 329         unsigned char   *sa;
 330         unsigned int    to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
 331
 332         switch (to_fr_ds) {
 333         case 0x00:      /* ToDs=0, FromDs=0 */
 334                 sa = GetAddr2Ptr(pframe);
 335                 break;
 336         case 0x01:      /* ToDs=0, FromDs=1 */
 337                 sa = GetAddr3Ptr(pframe);
 338                 break;
 339         case 0x02:      /* ToDs=1, FromDs=0 */
 340                 sa = GetAddr2Ptr(pframe);
 341                 break;
 342         default:        /* ToDs=1, FromDs=1 */
 343                 sa = GetAddr4Ptr(pframe);
 344                 break;
 345         }
 346
 347         return sa;
 348 }
 349
 350 static inline unsigned char *get_hdr_bssid(unsigned char *pframe)
 351 {
 352         unsigned char   *sa;
 353         unsigned int    to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
 354
 355         switch (to_fr_ds) {
 356         case 0x00:      /* ToDs=0, FromDs=0 */
 357                 sa = GetAddr3Ptr(pframe);
 358                 break;
 359         case 0x01:      /* ToDs=0, FromDs=1 */
 360                 sa = GetAddr2Ptr(pframe);
 361                 break;
 362         case 0x02:      /* ToDs=1, FromDs=0 */
 363                 sa = GetAddr1Ptr(pframe);
 364                 break;
 365         default:        /* ToDs=1, FromDs=1 */
 366                 sa = NULL;
 367                 break;
 368         }
 369         return sa;
 370 }
 371
 372
 373
 374 /*-----------------------------------------------------------------------------
 375  *              Below is for the security related definition
 376  *-----------------------------------------------------------------------------
 377  */
 378 #define _RESERVED_FRAME_TYPE_   0
 379 #define _SKB_FRAME_TYPE_        2
 380 #define _PRE_ALLOCMEM_          1
 381 #define _PRE_ALLOCHDR_          3
 382 #define _PRE_ALLOCLLCHDR_       4
 383 #define _PRE_ALLOCICVHDR_       5
 384 #define _PRE_ALLOCMICHDR_       6
 385
 386 #define _SIFSTIME_              ((priv->pmib->BssType.net_work_type & \
 387                                 WIRELESS_11A) ? 16 : 10)
 388 #define _ACKCTSLNG_             14      /*14 bytes long, including crclng */
 389 #define _CRCLNG_                4
 390
 391 #define _ASOCREQ_IE_OFFSET_     4       /* excluding wlan_hdr */
 392 #define _ASOCRSP_IE_OFFSET_     6
 393 #define _REASOCREQ_IE_OFFSET_   10
 394 #define _REASOCRSP_IE_OFFSET_   6
 395 #define _PROBEREQ_IE_OFFSET_    0
 396 #define _PROBERSP_IE_OFFSET_    12
 397 #define _AUTH_IE_OFFSET_        6
 398 #define _DEAUTH_IE_OFFSET_      0
 399 #define _BEACON_IE_OFFSET_      12
 400
 401 #define _FIXED_IE_LENGTH_       _BEACON_IE_OFFSET_
 402
 403 #define _SSID_IE_               0
 404 #define _SUPPORTEDRATES_IE_     1
 405 #define _DSSET_IE_              3
 406 #define _IBSS_PARA_IE_          6
 407 #define _ERPINFO_IE_            42
 408 #define _EXT_SUPPORTEDRATES_IE_ 50
 409
 410 #define _HT_CAPABILITY_IE_      45
 411 #define _HT_EXTRA_INFO_IE_      61
 412 #define _HT_ADD_INFO_IE_        61 /* _HT_EXTRA_INFO_IE_ */
 413
 414 #define _VENDOR_SPECIFIC_IE_    221
 415
 416 #define _RESERVED47_            47
 417
 418
 419 /* ---------------------------------------------------------------------------
 420  *                      Below is the fixed elements...
 421  * ---------------------------------------------------------------------------
 422  */
 423 #define _AUTH_ALGM_NUM_                 2
 424 #define _AUTH_SEQ_NUM_                  2
 425 #define _BEACON_ITERVAL_                2
 426 #define _CAPABILITY_                    2
 427 #define _CURRENT_APADDR_                6
 428 #define _LISTEN_INTERVAL_               2
 429 #define _RSON_CODE_                             2
 430 #define _ASOC_ID_                               2
 431 #define _STATUS_CODE_                   2
 432 #define _TIMESTAMP_                             8
 433
 434 #define AUTH_ODD_TO                             0
 435 #define AUTH_EVEN_TO                    1
 436
 437 #define WLAN_ETHCONV_ENCAP              1
 438 #define WLAN_ETHCONV_RFC1042    2
 439 #define WLAN_ETHCONV_8021h              3
 440
 441 #define cap_ESS BIT(0)
 442 #define cap_IBSS BIT(1)
 443 #define cap_CFPollable BIT(2)
 444 #define cap_CFRequest BIT(3)
 445 #define cap_Privacy BIT(4)
 446 #define cap_ShortPremble BIT(5)
 447
 448 /*-----------------------------------------------------------------------------
 449  *                      Below is the definition for 802.11i / 802.1x
 450  *------------------------------------------------------------------------------
 451  */
 452 #define _IEEE8021X_MGT_                 1       /*WPA */
 453 #define _IEEE8021X_PSK_                 2       /* WPA with pre-shared key */
 454
 455 /*-----------------------------------------------------------------------------
 456  *                      Below is the definition for WMM
 457  *------------------------------------------------------------------------------
 458  */
 459 #define _WMM_IE_Length_                         7  /* for WMM STA */
 460 #define _WMM_Para_Element_Length_               24
 461
 462
 463 /*-----------------------------------------------------------------------------
 464  *                      Below is the definition for 802.11n
 465  *------------------------------------------------------------------------------
 466  */
 467
 468 /* block-ack parameters */
 469 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
 470 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
 471 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
 472 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 473 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 474
 475 #define SetOrderBit(pbuf) ({ \
 476         *(__le16 *)(pbuf) |= cpu_to_le16(_ORDER_); \
 477 })
 478
 479 #define GetOrderBit(pbuf)       (((*(__le16 *)(pbuf)) & \
 480                                 le16_to_cpu(_ORDER_)) != 0)
 481
 482
 483 /**
 484  * struct ieee80211_bar - HT Block Ack Request
 485  *
 486  * This structure refers to "HT BlockAckReq" as
 487  * described in 802.11n draft section 7.2.1.7.1
 488  */
 489 struct ieee80211_bar {
 490         __le16 frame_control;
 491         __le16 duration;
 492         unsigned char ra[6];
 493         unsigned char ta[6];
 494         __le16 control;
 495         __le16 start_seq_num;
 496 } __packed;
 497
 498 /* 802.11 BAR control masks */
 499 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL     0x0000
 500 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA  0x0004
 501
 502
 503 /*
 504  * struct ieee80211_ht_cap - HT capabilities
 505  *
 506  * This structure refers to "HT capabilities element" as
 507  * described in 802.11n draft section 7.3.2.52
 508  */
 509
 510 struct ieee80211_ht_cap {
 511         __le16  cap_info;
 512         unsigned char   ampdu_params_info;
 513         unsigned char   supp_mcs_set[16];
 514         __le16  extended_ht_cap_info;
 515         __le32  tx_BF_cap_info;
 516         unsigned char          antenna_selection_info;
 517 } __packed;
 518
 519 /**
 520  * struct ieee80211_ht_cap - HT additional information
 521  *
 522  * This structure refers to "HT information element" as
 523  * described in 802.11n draft section 7.3.2.53
 524  */
 525 struct ieee80211_ht_addt_info {
 526         unsigned char   control_chan;
 527         unsigned char           ht_param;
 528         __le16  operation_mode;
 529         __le16  stbc_param;
 530         unsigned char           basic_set[16];
 531 } __packed;
 532
 533 /* 802.11n HT capabilities masks */
 534 #define IEEE80211_HT_CAP_SUP_WIDTH              0x0002
 535 #define IEEE80211_HT_CAP_SM_PS                  0x000C
 536 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
 537 #define IEEE80211_HT_CAP_SGI_20                 0x0020
 538 #define IEEE80211_HT_CAP_SGI_40                 0x0040
 539 #define IEEE80211_HT_CAP_TX_STBC                        0x0080
 540 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
 541 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
 542 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
 543 /* 802.11n HT capability AMPDU settings */
 544 #define IEEE80211_HT_CAP_AMPDU_FACTOR           0x03
 545 #define IEEE80211_HT_CAP_AMPDU_DENSITY          0x1C
 546 /* 802.11n HT capability MSC set */
 547 #define IEEE80211_SUPP_MCS_SET_UEQM             4
 548 #define IEEE80211_HT_CAP_MAX_STREAMS            4
 549 #define IEEE80211_SUPP_MCS_SET_LEN              10
 550 /* maximum streams the spec allows */
 551 #define IEEE80211_HT_CAP_MCS_TX_DEFINED         0x01
 552 #define IEEE80211_HT_CAP_MCS_TX_RX_DIFF         0x02
 553 #define IEEE80211_HT_CAP_MCS_TX_STREAMS         0x0C
 554 #define IEEE80211_HT_CAP_MCS_TX_UEQM            0x10
 555 /* 802.11n HT IE masks */
 556 #define IEEE80211_HT_IE_CHA_SEC_OFFSET          0x03
 557 #define IEEE80211_HT_IE_CHA_SEC_NONE            0x00
 558 #define IEEE80211_HT_IE_CHA_SEC_ABOVE           0x01
 559 #define IEEE80211_HT_IE_CHA_SEC_BELOW           0x03
 560 #define IEEE80211_HT_IE_CHA_WIDTH               0x04
 561 #define IEEE80211_HT_IE_HT_PROTECTION           0x0003
 562 #define IEEE80211_HT_IE_NON_GF_STA_PRSNT        0x0004
 563 #define IEEE80211_HT_IE_NON_HT_STA_PRSNT        0x0010
 564
 565 /* block-ack parameters */
 566 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
 567 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
 568 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
 569 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 570 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 571
 572 /*
 573  * A-PMDU buffer sizes
 574  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
 575  */
 576 #define IEEE80211_MIN_AMPDU_BUF 0x8
 577 #define IEEE80211_MAX_AMPDU_BUF 0x40
 578
 579
 580 /* Spatial Multiplexing Power Save Modes */
 581 #define WLAN_HT_CAP_SM_PS_STATIC                0
 582 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
 583 #define WLAN_HT_CAP_SM_PS_INVALID       2
 584 #define WLAN_HT_CAP_SM_PS_DISABLED      3
 585
 586 #endif /* _WIFI_H_ */
 587