drivers/staging/rtl8192e/rtl819x_HTProc.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   4  *
   5  * Contact Information: wlanfae <wlanfae@realtek.com>
   6  */
   7 #include "rtllib.h"
   8 #include "rtl819x_HT.h"
   9 u8 MCS_FILTER_ALL[16] = {
  10         0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  11         0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  12 };
  13
  14 u8 MCS_FILTER_1SS[16] = {
  15         0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
  16         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  17 ;
  18
  19 u16 MCS_DATA_RATE[2][2][77] = {
  20         {{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234,
  21          260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416,
  22          468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182,
  23          182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156,
  24          181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273,
  25          312, 351, 312, 351, 390, 390, 429},
  26         {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
  27          43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520,
  28          578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231,
  29          173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260,
  30          231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390,
  31          433, 433, 477} },
  32         {{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486,
  33          540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648,
  34          864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324,
  35          378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324,
  36          378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648,
  37          729, 648, 729, 810, 810, 891},
  38         {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540,
  39          600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720,
  40          960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360,
  41          420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360,
  42          420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720,
  43          810, 720, 810, 900, 900, 990} }
  44 };
  45
  46 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
  47
  48 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
  49
  50 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
  51
  52 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
  53
  54 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
  55
  56 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
  57
  58 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
  59
  60 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
  61
  62 static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
  63
  64 static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
  65
  66 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
  67
  68 static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
  69
  70 void ht_update_default_setting(struct rtllib_device *ieee)
  71 {
  72         struct rt_hi_throughput *ht_info = ieee->ht_info;
  73
  74         ht_info->ampdu_enable = 1;
  75         ht_info->ampdu_factor = 2;
  76
  77         ieee->tx_dis_rate_fallback = 0;
  78         ieee->tx_use_drv_assinged_rate = 0;
  79
  80         ieee->tx_enable_fw_calc_dur = 1;
  81
  82         ht_info->rx_reorder_win_size = 64;
  83         ht_info->rx_reorder_pending_time = 30;
  84 }
  85
  86 static u16 ht_mcs_to_data_rate(struct rtllib_device *ieee, u8 mcs_rate)
  87 {
  88         struct rt_hi_throughput *ht_info = ieee->ht_info;
  89
  90         u8      is40MHz = (ht_info->cur_bw_40mhz) ? 1 : 0;
  91         u8      isShortGI = (ht_info->cur_bw_40mhz) ?
  92                             ((ht_info->cur_short_gi_40mhz) ? 1 : 0) :
  93                             ((ht_info->cur_short_gi_20mhz) ? 1 : 0);
  94         return MCS_DATA_RATE[is40MHz][isShortGI][(mcs_rate & 0x7f)];
  95 }
  96
  97 u16  tx_count_to_data_rate(struct rtllib_device *ieee, u8 data_rate)
  98 {
  99         u16     cck_of_dm_rate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
 100                                    0x24, 0x30, 0x48, 0x60, 0x6c};
 101         u8      is40MHz = 0;
 102         u8      isShortGI = 0;
 103
 104         if (data_rate < 12)
 105                 return cck_of_dm_rate[data_rate];
 106         if (data_rate >= 0x10 && data_rate <= 0x1f) {
 107                 is40MHz = 0;
 108                 isShortGI = 0;
 109         } else if (data_rate >= 0x20  && data_rate <= 0x2f) {
 110                 is40MHz = 1;
 111                 isShortGI = 0;
 112         } else if (data_rate >= 0x30  && data_rate <= 0x3f) {
 113                 is40MHz = 0;
 114                 isShortGI = 1;
 115         } else if (data_rate >= 0x40  && data_rate <= 0x4f) {
 116                 is40MHz = 1;
 117                 isShortGI = 1;
 118         }
 119         return MCS_DATA_RATE[is40MHz][isShortGI][data_rate & 0xf];
 120 }
 121
 122 bool is_ht_half_nmode_aps(struct rtllib_device *ieee)
 123 {
 124         bool                    retValue = false;
 125         struct rtllib_network *net = &ieee->current_network;
 126
 127         if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 128             (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 129             (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 130             (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 131             (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 132             (net->ralink_cap_exist))
 133                 retValue = true;
 134         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 135                  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 136                  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
 137                 (net->broadcom_cap_exist))
 138                 retValue = true;
 139         else if (net->bssht.bd_rt2rt_aggregation)
 140                 retValue = true;
 141         else
 142                 retValue = false;
 143
 144         return retValue;
 145 }
 146
 147 static void ht_iot_peer_determine(struct rtllib_device *ieee)
 148 {
 149         struct rt_hi_throughput *ht_info = ieee->ht_info;
 150         struct rtllib_network *net = &ieee->current_network;
 151
 152         if (net->bssht.bd_rt2rt_aggregation) {
 153                 ht_info->iot_peer = HT_IOT_PEER_REALTEK;
 154                 if (net->bssht.rt2rt_ht_mode & RT_HT_CAP_USE_92SE)
 155                         ht_info->iot_peer = HT_IOT_PEER_REALTEK_92SE;
 156                 if (net->bssht.rt2rt_ht_mode & RT_HT_CAP_USE_SOFTAP)
 157                         ht_info->iot_peer = HT_IOT_PEER_92U_SOFTAP;
 158         } else if (net->broadcom_cap_exist) {
 159                 ht_info->iot_peer = HT_IOT_PEER_BROADCOM;
 160         } else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 161                  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 162                  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)) {
 163                 ht_info->iot_peer = HT_IOT_PEER_BROADCOM;
 164         } else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 165                  (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 166                  (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 167                  (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 168                  (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 169                   net->ralink_cap_exist) {
 170                 ht_info->iot_peer = HT_IOT_PEER_RALINK;
 171         } else if ((net->atheros_cap_exist) ||
 172                 (memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
 173                 (memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0)) {
 174                 ht_info->iot_peer = HT_IOT_PEER_ATHEROS;
 175         } else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
 176                   net->cisco_cap_exist) {
 177                 ht_info->iot_peer = HT_IOT_PEER_CISCO;
 178         } else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
 179                   net->marvell_cap_exist) {
 180                 ht_info->iot_peer = HT_IOT_PEER_MARVELL;
 181         } else if (net->airgo_cap_exist) {
 182                 ht_info->iot_peer = HT_IOT_PEER_AIRGO;
 183         } else {
 184                 ht_info->iot_peer = HT_IOT_PEER_UNKNOWN;
 185         }
 186
 187         netdev_dbg(ieee->dev, "IOTPEER: %x\n", ht_info->iot_peer);
 188 }
 189
 190 static u8 ht_iot_act_is_mgnt_use_cck_6m(struct rtllib_device *ieee,
 191                                  struct rtllib_network *network)
 192 {
 193         u8      retValue = 0;
 194
 195         if (ieee->ht_info->iot_peer == HT_IOT_PEER_BROADCOM)
 196                 retValue = 1;
 197
 198         return retValue;
 199 }
 200
 201 static u8 ht_iot_act_is_ccd_fsync(struct rtllib_device *ieee)
 202 {
 203         u8      retValue = 0;
 204
 205         if (ieee->ht_info->iot_peer == HT_IOT_PEER_BROADCOM)
 206                 retValue = 1;
 207         return retValue;
 208 }
 209
 210 static void ht_iot_act_determine_ra_func(struct rtllib_device *ieee, bool bPeerRx2ss)
 211 {
 212         struct rt_hi_throughput *ht_info = ieee->ht_info;
 213
 214         ht_info->iot_ra_func &= HT_IOT_RAFUNC_DISABLE_ALL;
 215
 216         if (ht_info->iot_peer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
 217                 ht_info->iot_ra_func |= HT_IOT_RAFUNC_PEER_1R;
 218
 219         if (ht_info->iot_action & HT_IOT_ACT_AMSDU_ENABLE)
 220                 ht_info->iot_ra_func |= HT_IOT_RAFUNC_TX_AMSDU;
 221 }
 222
 223 void ht_reset_iot_setting(struct rt_hi_throughput *ht_info)
 224 {
 225         ht_info->iot_action = 0;
 226         ht_info->iot_peer = HT_IOT_PEER_UNKNOWN;
 227         ht_info->iot_ra_func = 0;
 228 }
 229
 230 void ht_construct_capability_element(struct rtllib_device *ieee, u8 *pos_ht_cap,
 231                                   u8 *len, u8 is_encrypt, bool assoc)
 232 {
 233         struct rt_hi_throughput *ht = ieee->ht_info;
 234         struct ht_capab_ele *cap_ele = NULL;
 235
 236         if (!pos_ht_cap || !ht) {
 237                 netdev_warn(ieee->dev,
 238                             "%s(): posHTCap and ht_info are null\n", __func__);
 239                 return;
 240         }
 241         memset(pos_ht_cap, 0, *len);
 242
 243         if ((assoc) && (ht->peer_ht_spec_ver == HT_SPEC_VER_EWC)) {
 244                 static const u8 EWC11NHTCap[] = { 0x00, 0x90, 0x4c, 0x33 };
 245
 246                 memcpy(pos_ht_cap, EWC11NHTCap, sizeof(EWC11NHTCap));
 247                 cap_ele = (struct ht_capab_ele *)&pos_ht_cap[4];
 248                 *len = 30 + 2;
 249         } else {
 250                 cap_ele = (struct ht_capab_ele *)pos_ht_cap;
 251                 *len = 26 + 2;
 252         }
 253
 254         cap_ele->AdvCoding              = 0;
 255         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 256                 cap_ele->ChlWidth = 0;
 257         else
 258                 cap_ele->ChlWidth = 1;
 259
 260         cap_ele->MimoPwrSave            = 3;
 261         cap_ele->GreenField             = 0;
 262         cap_ele->ShortGI20Mhz           = 1;
 263         cap_ele->ShortGI40Mhz           = 1;
 264
 265         cap_ele->TxSTBC                 = 1;
 266         cap_ele->RxSTBC                 = 0;
 267         cap_ele->DelayBA                = 0;
 268         cap_ele->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
 269         cap_ele->DssCCk = 1;
 270         cap_ele->PSMP = 0;
 271         cap_ele->LSigTxopProtect = 0;
 272
 273         netdev_dbg(ieee->dev,
 274                    "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n",
 275                    cap_ele->ChlWidth, cap_ele->MaxAMSDUSize, cap_ele->DssCCk);
 276
 277         if (is_encrypt) {
 278                 cap_ele->MPDUDensity    = 7;
 279                 cap_ele->MaxRxAMPDUFactor       = 2;
 280         } else {
 281                 cap_ele->MaxRxAMPDUFactor       = 3;
 282                 cap_ele->MPDUDensity    = 0;
 283         }
 284
 285         memcpy(cap_ele->MCS, ieee->reg_dot11ht_oper_rate_set, 16);
 286         memset(&cap_ele->ExtHTCapInfo, 0, 2);
 287         memset(cap_ele->TxBFCap, 0, 4);
 288
 289         cap_ele->ASCap = 0;
 290
 291         if (assoc) {
 292                 if (ht->iot_action & HT_IOT_ACT_DISABLE_MCS15)
 293                         cap_ele->MCS[1] &= 0x7f;
 294
 295                 if (ht->iot_action & HT_IOT_ACT_DISABLE_MCS14)
 296                         cap_ele->MCS[1] &= 0xbf;
 297
 298                 if (ht->iot_action & HT_IOT_ACT_DISABLE_ALL_2SS)
 299                         cap_ele->MCS[1] &= 0x00;
 300
 301                 if (ht->iot_action & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
 302                         cap_ele->ShortGI40Mhz           = 0;
 303
 304                 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
 305                         cap_ele->ChlWidth = 0;
 306                         cap_ele->MCS[1] = 0;
 307                 }
 308         }
 309 }
 310
 311 void ht_construct_rt2rt_agg_element(struct rtllib_device *ieee, u8 *posRT2RTAgg,
 312                                 u8 *len)
 313 {
 314         if (!posRT2RTAgg) {
 315                 netdev_warn(ieee->dev, "%s(): posRT2RTAgg is null\n", __func__);
 316                 return;
 317         }
 318         memset(posRT2RTAgg, 0, *len);
 319         *posRT2RTAgg++ = 0x00;
 320         *posRT2RTAgg++ = 0xe0;
 321         *posRT2RTAgg++ = 0x4c;
 322         *posRT2RTAgg++ = 0x02;
 323         *posRT2RTAgg++ = 0x01;
 324
 325         *posRT2RTAgg = 0x30;
 326
 327         if (ieee->bSupportRemoteWakeUp)
 328                 *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
 329
 330         *len = 6 + 2;
 331 }
 332
 333 static u8 ht_pick_mcs_rate(struct rtllib_device *ieee, u8 *pOperateMCS)
 334 {
 335         u8 i;
 336
 337         if (!pOperateMCS) {
 338                 netdev_warn(ieee->dev, "%s(): pOperateMCS is null\n", __func__);
 339                 return false;
 340         }
 341
 342         switch (ieee->mode) {
 343         case WIRELESS_MODE_B:
 344         case WIRELESS_MODE_G:
 345                 for (i = 0; i <= 15; i++)
 346                         pOperateMCS[i] = 0;
 347                 break;
 348         case WIRELESS_MODE_N_24G:
 349                 pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
 350                 pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
 351                 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
 352                 break;
 353         default:
 354                 break;
 355         }
 356
 357         return true;
 358 }
 359
 360 u8 ht_get_highest_mcs_rate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 361                        u8 *pMCSFilter)
 362 {
 363         u8              i, j;
 364         u8              bitMap;
 365         u8              mcsRate = 0;
 366         u8              availableMcsRate[16];
 367
 368         if (!pMCSRateSet || !pMCSFilter) {
 369                 netdev_warn(ieee->dev,
 370                             "%s(): pMCSRateSet and pMCSFilter are null\n",
 371                             __func__);
 372                 return false;
 373         }
 374         for (i = 0; i < 16; i++)
 375                 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
 376
 377         for (i = 0; i < 16; i++) {
 378                 if (availableMcsRate[i] != 0)
 379                         break;
 380         }
 381         if (i == 16)
 382                 return false;
 383
 384         for (i = 0; i < 16; i++) {
 385                 if (availableMcsRate[i] != 0) {
 386                         bitMap = availableMcsRate[i];
 387                         for (j = 0; j < 8; j++) {
 388                                 if ((bitMap % 2) != 0) {
 389                                         if (ht_mcs_to_data_rate(ieee, (8 * i + j)) >
 390                                             ht_mcs_to_data_rate(ieee, mcsRate))
 391                                                 mcsRate = 8 * i + j;
 392                                 }
 393                                 bitMap >>= 1;
 394                         }
 395                 }
 396         }
 397         return mcsRate | 0x80;
 398 }
 399
 400 static u8 ht_filter_mcs_rate(struct rtllib_device *ieee, u8 *pSupportMCS,
 401                           u8 *pOperateMCS)
 402 {
 403         u8 i;
 404
 405         for (i = 0; i <= 15; i++)
 406                 pOperateMCS[i] = ieee->reg_dot11tx_ht_oper_rate_set[i] &
 407                                  pSupportMCS[i];
 408
 409         ht_pick_mcs_rate(ieee, pOperateMCS);
 410
 411         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 412                 pOperateMCS[1] = 0;
 413
 414         for (i = 2; i <= 15; i++)
 415                 pOperateMCS[i] = 0;
 416
 417         return true;
 418 }
 419
 420 void ht_set_connect_bw_mode(struct rtllib_device *ieee,
 421                         enum ht_channel_width bandwidth,
 422                         enum ht_extchnl_offset Offset);
 423
 424 void ht_on_assoc_rsp(struct rtllib_device *ieee)
 425 {
 426         struct rt_hi_throughput *ht_info = ieee->ht_info;
 427         struct ht_capab_ele *pPeerHTCap = NULL;
 428         struct ht_info_ele *pPeerHTInfo = NULL;
 429         u8 *pMcsFilter = NULL;
 430
 431         static const u8 EWC11NHTCap[] = { 0x00, 0x90, 0x4c, 0x33 };
 432         static const u8 EWC11NHTInfo[] = { 0x00, 0x90, 0x4c, 0x34 };
 433
 434         if (!ht_info->current_ht_support) {
 435                 netdev_warn(ieee->dev, "%s(): HT_DISABLE\n", __func__);
 436                 return;
 437         }
 438         netdev_dbg(ieee->dev, "%s(): HT_ENABLE\n", __func__);
 439
 440         if (!memcmp(ht_info->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
 441                 pPeerHTCap = (struct ht_capab_ele *)(&ht_info->PeerHTCapBuf[4]);
 442         else
 443                 pPeerHTCap = (struct ht_capab_ele *)(ht_info->PeerHTCapBuf);
 444
 445         if (!memcmp(ht_info->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
 446                 pPeerHTInfo = (struct ht_info_ele *)
 447                              (&ht_info->PeerHTInfoBuf[4]);
 448         else
 449                 pPeerHTInfo = (struct ht_info_ele *)(ht_info->PeerHTInfoBuf);
 450
 451 #ifdef VERBOSE_DEBUG
 452         print_hex_dump_bytes("%s: ", __func__, DUMP_PREFIX_NONE,
 453                              pPeerHTCap, sizeof(struct ht_capab_ele));
 454 #endif
 455         ht_set_connect_bw_mode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
 456                            (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
 457         ht_info->cur_tx_bw40mhz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
 458                                  true : false);
 459
 460         ht_info->cur_short_gi_20mhz = ((pPeerHTCap->ShortGI20Mhz == 1) ? true : false);
 461         ht_info->cur_short_gi_40mhz = ((pPeerHTCap->ShortGI40Mhz == 1) ? true : false);
 462
 463         ht_info->current_ampdu_enable = ht_info->ampdu_enable;
 464         if (ieee->rtllib_ap_sec_type &&
 465             (ieee->rtllib_ap_sec_type(ieee) & (SEC_ALG_WEP | SEC_ALG_TKIP))) {
 466                 if ((ht_info->iot_peer == HT_IOT_PEER_ATHEROS) ||
 467                     (ht_info->iot_peer == HT_IOT_PEER_UNKNOWN))
 468                         ht_info->current_ampdu_enable = false;
 469         }
 470
 471         if (ieee->current_network.bssht.bd_rt2rt_aggregation) {
 472                 if (ieee->pairwise_key_type != KEY_TYPE_NA)
 473                         ht_info->CurrentAMPDUFactor =
 474                                          pPeerHTCap->MaxRxAMPDUFactor;
 475                 else
 476                         ht_info->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
 477         } else {
 478                 ht_info->CurrentAMPDUFactor = min_t(u32, pPeerHTCap->MaxRxAMPDUFactor,
 479                                                     HT_AGG_SIZE_32K);
 480         }
 481
 482         ht_info->current_mpdu_density = pPeerHTCap->MPDUDensity;
 483         if (ht_info->iot_action & HT_IOT_ACT_TX_USE_AMSDU_8K) {
 484                 ht_info->current_ampdu_enable = false;
 485         }
 486         ht_info->cur_rx_reorder_enable = 1;
 487
 488         if (pPeerHTCap->MCS[0] == 0)
 489                 pPeerHTCap->MCS[0] = 0xff;
 490
 491         ht_iot_act_determine_ra_func(ieee, ((pPeerHTCap->MCS[1]) != 0));
 492
 493         ht_filter_mcs_rate(ieee, pPeerHTCap->MCS, ieee->dot11ht_oper_rate_set);
 494
 495         pMcsFilter = MCS_FILTER_ALL;
 496         ieee->HTHighestOperaRate = ht_get_highest_mcs_rate(ieee,
 497                                                        ieee->dot11ht_oper_rate_set,
 498                                                        pMcsFilter);
 499         ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 500
 501         ht_info->current_op_mode = pPeerHTInfo->OptMode;
 502 }
 503
 504 void ht_initialize_ht_info(struct rtllib_device *ieee)
 505 {
 506         struct rt_hi_throughput *ht_info = ieee->ht_info;
 507
 508         ht_info->current_ht_support = false;
 509
 510         ht_info->cur_bw_40mhz = false;
 511         ht_info->cur_tx_bw40mhz = false;
 512
 513         ht_info->cur_short_gi_20mhz = false;
 514         ht_info->cur_short_gi_40mhz = false;
 515
 516         ht_info->current_mpdu_density = 0;
 517         ht_info->CurrentAMPDUFactor = ht_info->ampdu_factor;
 518
 519         memset((void *)(&ht_info->SelfHTCap), 0,
 520                sizeof(ht_info->SelfHTCap));
 521         memset((void *)(&ht_info->PeerHTCapBuf), 0,
 522                sizeof(ht_info->PeerHTCapBuf));
 523         memset((void *)(&ht_info->PeerHTInfoBuf), 0,
 524                sizeof(ht_info->PeerHTInfoBuf));
 525
 526         ht_info->sw_bw_in_progress = false;
 527
 528         ht_info->peer_ht_spec_ver = HT_SPEC_VER_IEEE;
 529
 530         ht_info->current_rt2rt_aggregation = false;
 531         ht_info->current_rt2rt_long_slot_time = false;
 532
 533         ht_info->iot_peer = 0;
 534         ht_info->iot_action = 0;
 535         ht_info->iot_ra_func = 0;
 536
 537         {
 538                 u8 *RegHTSuppRateSets = &ieee->reg_ht_supp_rate_set[0];
 539
 540                 RegHTSuppRateSets[0] = 0xFF;
 541                 RegHTSuppRateSets[1] = 0xFF;
 542                 RegHTSuppRateSets[4] = 0x01;
 543         }
 544 }
 545
 546 void ht_initialize_bss_desc(struct bss_ht *pBssHT)
 547 {
 548         pBssHT->bd_support_ht = false;
 549         memset(pBssHT->bd_ht_cap_buf, 0, sizeof(pBssHT->bd_ht_cap_buf));
 550         pBssHT->bd_ht_cap_len = 0;
 551         memset(pBssHT->bd_ht_info_buf, 0, sizeof(pBssHT->bd_ht_info_buf));
 552         pBssHT->bd_ht_info_len = 0;
 553
 554         pBssHT->bd_ht_spec_ver = HT_SPEC_VER_IEEE;
 555
 556         pBssHT->bd_rt2rt_aggregation = false;
 557         pBssHT->bd_rt2rt_long_slot_time = false;
 558         pBssHT->rt2rt_ht_mode = (enum rt_ht_capability)0;
 559 }
 560
 561 void ht_reset_self_and_save_peer_setting(struct rtllib_device *ieee,
 562                                    struct rtllib_network *pNetwork)
 563 {
 564         struct rt_hi_throughput *ht_info = ieee->ht_info;
 565         u8      bIOTAction = 0;
 566
 567         /* unmark enable_ht flag here is the same reason why unmarked in
 568          * function rtllib_softmac_new_net. WB 2008.09.10
 569          */
 570         if (pNetwork->bssht.bd_support_ht) {
 571                 ht_info->current_ht_support = true;
 572                 ht_info->peer_ht_spec_ver = pNetwork->bssht.bd_ht_spec_ver;
 573
 574                 if (pNetwork->bssht.bd_ht_cap_len > 0 &&
 575                     pNetwork->bssht.bd_ht_cap_len <= sizeof(ht_info->PeerHTCapBuf))
 576                         memcpy(ht_info->PeerHTCapBuf,
 577                                pNetwork->bssht.bd_ht_cap_buf,
 578                                pNetwork->bssht.bd_ht_cap_len);
 579
 580                 if (pNetwork->bssht.bd_ht_info_len > 0 &&
 581                     pNetwork->bssht.bd_ht_info_len <=
 582                     sizeof(ht_info->PeerHTInfoBuf))
 583                         memcpy(ht_info->PeerHTInfoBuf,
 584                                pNetwork->bssht.bd_ht_info_buf,
 585                                pNetwork->bssht.bd_ht_info_len);
 586
 587                 ht_info->current_rt2rt_aggregation =
 588                          pNetwork->bssht.bd_rt2rt_aggregation;
 589                 ht_info->current_rt2rt_long_slot_time =
 590                          pNetwork->bssht.bd_rt2rt_long_slot_time;
 591
 592                 ht_iot_peer_determine(ieee);
 593
 594                 ht_info->iot_action = 0;
 595                 bIOTAction = ht_iot_act_is_mgnt_use_cck_6m(ieee, pNetwork);
 596                 if (bIOTAction)
 597                         ht_info->iot_action |= HT_IOT_ACT_MGNT_USE_CCK_6M;
 598                 bIOTAction = ht_iot_act_is_ccd_fsync(ieee);
 599                 if (bIOTAction)
 600                         ht_info->iot_action |= HT_IOT_ACT_CDD_FSYNC;
 601         } else {
 602                 ht_info->current_ht_support = false;
 603                 ht_info->current_rt2rt_aggregation = false;
 604                 ht_info->current_rt2rt_long_slot_time = false;
 605
 606                 ht_info->iot_action = 0;
 607                 ht_info->iot_ra_func = 0;
 608         }
 609 }
 610
 611 void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
 612                                      struct rtllib_network *pNetwork)
 613 {
 614         struct rt_hi_throughput *ht_info = ieee->ht_info;
 615         struct ht_info_ele *pPeerHTInfo =
 616                  (struct ht_info_ele *)pNetwork->bssht.bd_ht_info_buf;
 617
 618         if (ht_info->current_ht_support) {
 619                 if (pNetwork->bssht.bd_ht_info_len != 0)
 620                         ht_info->current_op_mode = pPeerHTInfo->OptMode;
 621         }
 622 }
 623 EXPORT_SYMBOL(HT_update_self_and_peer_setting);
 624
 625 u8 ht_c_check(struct rtllib_device *ieee, u8 *pFrame)
 626 {
 627         if (ieee->ht_info->current_ht_support) {
 628                 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
 629                         netdev_dbg(ieee->dev, "HT CONTROL FILED EXIST!!\n");
 630                         return true;
 631                 }
 632         }
 633         return false;
 634 }
 635
 636 static void ht_set_connect_bw_mode_callback(struct rtllib_device *ieee)
 637 {
 638         struct rt_hi_throughput *ht_info = ieee->ht_info;
 639
 640         if (ht_info->cur_bw_40mhz) {
 641                 if (ht_info->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
 642                         ieee->set_chan(ieee->dev,
 643                                        ieee->current_network.channel + 2);
 644                 else if (ht_info->CurSTAExtChnlOffset ==
 645                          HT_EXTCHNL_OFFSET_LOWER)
 646                         ieee->set_chan(ieee->dev,
 647                                        ieee->current_network.channel - 2);
 648                 else
 649                         ieee->set_chan(ieee->dev,
 650                                        ieee->current_network.channel);
 651
 652                 ieee->set_bw_mode_handler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
 653                                        ht_info->CurSTAExtChnlOffset);
 654         } else {
 655                 ieee->set_chan(ieee->dev, ieee->current_network.channel);
 656                 ieee->set_bw_mode_handler(ieee->dev, HT_CHANNEL_WIDTH_20,
 657                                        HT_EXTCHNL_OFFSET_NO_EXT);
 658         }
 659
 660         ht_info->sw_bw_in_progress = false;
 661 }
 662
 663 void ht_set_connect_bw_mode(struct rtllib_device *ieee,
 664                         enum ht_channel_width bandwidth,
 665                         enum ht_extchnl_offset Offset)
 666 {
 667         struct rt_hi_throughput *ht_info = ieee->ht_info;
 668
 669         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 670                 bandwidth = HT_CHANNEL_WIDTH_20;
 671
 672         if (ht_info->sw_bw_in_progress) {
 673                 pr_info("%s: sw_bw_in_progress!!\n", __func__);
 674                 return;
 675         }
 676         if (bandwidth == HT_CHANNEL_WIDTH_20_40) {
 677                 if (ieee->current_network.channel < 2 &&
 678                     Offset == HT_EXTCHNL_OFFSET_LOWER)
 679                         Offset = HT_EXTCHNL_OFFSET_NO_EXT;
 680                 if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
 681                     Offset == HT_EXTCHNL_OFFSET_LOWER) {
 682                         ht_info->cur_bw_40mhz = true;
 683                         ht_info->CurSTAExtChnlOffset = Offset;
 684                 } else {
 685                         ht_info->cur_bw_40mhz = false;
 686                         ht_info->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 687                 }
 688         } else {
 689                 ht_info->cur_bw_40mhz = false;
 690                 ht_info->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 691         }
 692
 693         netdev_dbg(ieee->dev, "%s():ht_info->bCurBW40MHz:%x\n", __func__,
 694                    ht_info->cur_bw_40mhz);
 695
 696         ht_info->sw_bw_in_progress = true;
 697
 698         ht_set_connect_bw_mode_callback(ieee);
 699 }