drivers/net/wireless/rtlwifi/base.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2012  Realtek Corporation.
   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  * The full GNU General Public License is included in this distribution in the
  15  * file called LICENSE.
  16  *
  17  * Contact Information:
  18  * wlanfae <wlanfae@realtek.com>
  19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  20  * Hsinchu 300, Taiwan.
  21  *
  22  * Larry Finger <Larry.Finger@lwfinger.net>
  23  *
  24  *****************************************************************************/
  25
  26 #include "wifi.h"
  27 #include "rc.h"
  28 #include "base.h"
  29 #include "efuse.h"
  30 #include "cam.h"
  31 #include "ps.h"
  32 #include "regd.h"
  33 #include "pci.h"
  34 #include <linux/ip.h>
  35 #include <linux/module.h>
  36 #include <linux/udp.h>
  37
  38 /*
  39  *NOTICE!!!: This file will be very big, we should
  40  *keep it clear under following roles:
  41  *
  42  *This file include following parts, so, if you add new
  43  *functions into this file, please check which part it
  44  *should includes. or check if you should add new part
  45  *for this file:
  46  *
  47  *1) mac80211 init functions
  48  *2) tx information functions
  49  *3) functions called by core.c
  50  *4) wq & timer callback functions
  51  *5) frame process functions
  52  *6) IOT functions
  53  *7) sysfs functions
  54  *8) vif functions
  55  *9) ...
  56  */
  57
  58 /*********************************************************
  59  *
  60  * mac80211 init functions
  61  *
  62  *********************************************************/
  63 static struct ieee80211_channel rtl_channeltable_2g[] = {
  64         {.center_freq = 2412, .hw_value = 1,},
  65         {.center_freq = 2417, .hw_value = 2,},
  66         {.center_freq = 2422, .hw_value = 3,},
  67         {.center_freq = 2427, .hw_value = 4,},
  68         {.center_freq = 2432, .hw_value = 5,},
  69         {.center_freq = 2437, .hw_value = 6,},
  70         {.center_freq = 2442, .hw_value = 7,},
  71         {.center_freq = 2447, .hw_value = 8,},
  72         {.center_freq = 2452, .hw_value = 9,},
  73         {.center_freq = 2457, .hw_value = 10,},
  74         {.center_freq = 2462, .hw_value = 11,},
  75         {.center_freq = 2467, .hw_value = 12,},
  76         {.center_freq = 2472, .hw_value = 13,},
  77         {.center_freq = 2484, .hw_value = 14,},
  78 };
  79
  80 static struct ieee80211_channel rtl_channeltable_5g[] = {
  81         {.center_freq = 5180, .hw_value = 36,},
  82         {.center_freq = 5200, .hw_value = 40,},
  83         {.center_freq = 5220, .hw_value = 44,},
  84         {.center_freq = 5240, .hw_value = 48,},
  85         {.center_freq = 5260, .hw_value = 52,},
  86         {.center_freq = 5280, .hw_value = 56,},
  87         {.center_freq = 5300, .hw_value = 60,},
  88         {.center_freq = 5320, .hw_value = 64,},
  89         {.center_freq = 5500, .hw_value = 100,},
  90         {.center_freq = 5520, .hw_value = 104,},
  91         {.center_freq = 5540, .hw_value = 108,},
  92         {.center_freq = 5560, .hw_value = 112,},
  93         {.center_freq = 5580, .hw_value = 116,},
  94         {.center_freq = 5600, .hw_value = 120,},
  95         {.center_freq = 5620, .hw_value = 124,},
  96         {.center_freq = 5640, .hw_value = 128,},
  97         {.center_freq = 5660, .hw_value = 132,},
  98         {.center_freq = 5680, .hw_value = 136,},
  99         {.center_freq = 5700, .hw_value = 140,},
 100         {.center_freq = 5745, .hw_value = 149,},
 101         {.center_freq = 5765, .hw_value = 153,},
 102         {.center_freq = 5785, .hw_value = 157,},
 103         {.center_freq = 5805, .hw_value = 161,},
 104         {.center_freq = 5825, .hw_value = 165,},
 105 };
 106
 107 static struct ieee80211_rate rtl_ratetable_2g[] = {
 108         {.bitrate = 10, .hw_value = 0x00,},
 109         {.bitrate = 20, .hw_value = 0x01,},
 110         {.bitrate = 55, .hw_value = 0x02,},
 111         {.bitrate = 110, .hw_value = 0x03,},
 112         {.bitrate = 60, .hw_value = 0x04,},
 113         {.bitrate = 90, .hw_value = 0x05,},
 114         {.bitrate = 120, .hw_value = 0x06,},
 115         {.bitrate = 180, .hw_value = 0x07,},
 116         {.bitrate = 240, .hw_value = 0x08,},
 117         {.bitrate = 360, .hw_value = 0x09,},
 118         {.bitrate = 480, .hw_value = 0x0a,},
 119         {.bitrate = 540, .hw_value = 0x0b,},
 120 };
 121
 122 static struct ieee80211_rate rtl_ratetable_5g[] = {
 123         {.bitrate = 60, .hw_value = 0x04,},
 124         {.bitrate = 90, .hw_value = 0x05,},
 125         {.bitrate = 120, .hw_value = 0x06,},
 126         {.bitrate = 180, .hw_value = 0x07,},
 127         {.bitrate = 240, .hw_value = 0x08,},
 128         {.bitrate = 360, .hw_value = 0x09,},
 129         {.bitrate = 480, .hw_value = 0x0a,},
 130         {.bitrate = 540, .hw_value = 0x0b,},
 131 };
 132
 133 static const struct ieee80211_supported_band rtl_band_2ghz = {
 134         .band = IEEE80211_BAND_2GHZ,
 135
 136         .channels = rtl_channeltable_2g,
 137         .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
 138
 139         .bitrates = rtl_ratetable_2g,
 140         .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
 141
 142         .ht_cap = {0},
 143 };
 144
 145 static struct ieee80211_supported_band rtl_band_5ghz = {
 146         .band = IEEE80211_BAND_5GHZ,
 147
 148         .channels = rtl_channeltable_5g,
 149         .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
 150
 151         .bitrates = rtl_ratetable_5g,
 152         .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
 153
 154         .ht_cap = {0},
 155 };
 156
 157 static const u8 tid_to_ac[] = {
 158         2, /* IEEE80211_AC_BE */
 159         3, /* IEEE80211_AC_BK */
 160         3, /* IEEE80211_AC_BK */
 161         2, /* IEEE80211_AC_BE */
 162         1, /* IEEE80211_AC_VI */
 163         1, /* IEEE80211_AC_VI */
 164         0, /* IEEE80211_AC_VO */
 165         0, /* IEEE80211_AC_VO */
 166 };
 167
 168 u8 rtl_tid_to_ac(u8 tid)
 169 {
 170         return tid_to_ac[tid];
 171 }
 172 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
 173
 174 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
 175                                   struct ieee80211_sta_ht_cap *ht_cap)
 176 {
 177         struct rtl_priv *rtlpriv = rtl_priv(hw);
 178         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 179
 180         ht_cap->ht_supported = true;
 181         ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 182             IEEE80211_HT_CAP_SGI_40 |
 183             IEEE80211_HT_CAP_SGI_20 |
 184             IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
 185
 186         if (rtlpriv->rtlhal.disable_amsdu_8k)
 187                 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
 188
 189         /*
 190          *Maximum length of AMPDU that the STA can receive.
 191          *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
 192          */
 193         ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 194
 195         /*Minimum MPDU start spacing , */
 196         ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
 197
 198         ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 199
 200         /*hw->wiphy->bands[IEEE80211_BAND_2GHZ]
 201          *base on ant_num
 202          *rx_mask: RX mask
 203          *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
 204          *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
 205          *if rx_ant >= 3 rx_mask[2]= 0xff;
 206          *if BW_40 rx_mask[4]= 0x01;
 207          *highest supported RX rate
 208          */
 209         if (rtlpriv->dm.supp_phymode_switch) {
 210                 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
 211                          "Support phy mode switch\n");
 212
 213                 ht_cap->mcs.rx_mask[0] = 0xFF;
 214                 ht_cap->mcs.rx_mask[1] = 0xFF;
 215                 ht_cap->mcs.rx_mask[4] = 0x01;
 216
 217                 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 218         } else {
 219                 if (get_rf_type(rtlphy) == RF_1T2R ||
 220                     get_rf_type(rtlphy) == RF_2T2R) {
 221                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 222                                  "1T2R or 2T2R\n");
 223                         ht_cap->mcs.rx_mask[0] = 0xFF;
 224                         ht_cap->mcs.rx_mask[1] = 0xFF;
 225                         ht_cap->mcs.rx_mask[4] = 0x01;
 226
 227                         ht_cap->mcs.rx_highest =
 228                                  cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 229                 } else if (get_rf_type(rtlphy) == RF_1T1R) {
 230                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
 231
 232                         ht_cap->mcs.rx_mask[0] = 0xFF;
 233                         ht_cap->mcs.rx_mask[1] = 0x00;
 234                         ht_cap->mcs.rx_mask[4] = 0x01;
 235
 236                         ht_cap->mcs.rx_highest =
 237                                  cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
 238                 }
 239         }
 240 }
 241
 242 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
 243                                    struct ieee80211_sta_vht_cap *vht_cap)
 244 {
 245         struct rtl_priv *rtlpriv = rtl_priv(hw);
 246         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 247
 248         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
 249                 u16 mcs_map;
 250
 251                 vht_cap->vht_supported = true;
 252                 vht_cap->cap =
 253                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
 254                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
 255                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 256                         IEEE80211_VHT_CAP_SHORT_GI_80 |
 257                         IEEE80211_VHT_CAP_TXSTBC |
 258                         IEEE80211_VHT_CAP_RXSTBC_1 |
 259                         IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 260                         IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 261                         IEEE80211_VHT_CAP_HTC_VHT |
 262                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 263                         IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 264                         IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 265                         0;
 266
 267                 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 268                         IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
 269                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 270                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 271                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 272                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 273                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 274                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 275
 276                 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 277                 vht_cap->vht_mcs.rx_highest =
 278                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 279                 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 280                 vht_cap->vht_mcs.tx_highest =
 281                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 282         } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
 283                 u16 mcs_map;
 284
 285                 vht_cap->vht_supported = true;
 286                 vht_cap->cap =
 287                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
 288                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
 289                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 290                         IEEE80211_VHT_CAP_SHORT_GI_80 |
 291                         IEEE80211_VHT_CAP_TXSTBC |
 292                         IEEE80211_VHT_CAP_RXSTBC_1 |
 293                         IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 294                         IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 295                         IEEE80211_VHT_CAP_HTC_VHT |
 296                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 297                         IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 298                         IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 299                         0;
 300
 301                 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 302                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
 303                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 304                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 305                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 306                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 307                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 308                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 309
 310                 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 311                 vht_cap->vht_mcs.rx_highest =
 312                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 313                 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 314                 vht_cap->vht_mcs.tx_highest =
 315                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 316         }
 317 }
 318
 319 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
 320 {
 321         struct rtl_priv *rtlpriv = rtl_priv(hw);
 322         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 323         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 324         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 325         struct ieee80211_supported_band *sband;
 326
 327         if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
 328             rtlhal->bandset == BAND_ON_BOTH) {
 329                 /* 1: 2.4 G bands */
 330                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 331                 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
 332
 333                 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
 334                  * to default value(1T1R) */
 335                 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
 336                                 sizeof(struct ieee80211_supported_band));
 337
 338                 /* <3> init ht cap base on ant_num */
 339                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 340
 341                 /* <4> set mac->sband to wiphy->sband */
 342                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
 343
 344                 /* 2: 5 G bands */
 345                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 346                 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
 347
 348                 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
 349                  * to default value(1T1R) */
 350                 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
 351                                 sizeof(struct ieee80211_supported_band));
 352
 353                 /* <3> init ht cap base on ant_num */
 354                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 355
 356                 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 357                 /* <4> set mac->sband to wiphy->sband */
 358                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
 359         } else {
 360                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 361                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 362                         sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
 363
 364                         /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
 365                          * to default value(1T1R) */
 366                         memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
 367                                &rtl_band_2ghz,
 368                                sizeof(struct ieee80211_supported_band));
 369
 370                         /* <3> init ht cap base on ant_num */
 371                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 372
 373                         /* <4> set mac->sband to wiphy->sband */
 374                         hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
 375                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 376                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 377                         sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
 378
 379                         /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
 380                          * to default value(1T1R) */
 381                         memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
 382                                &rtl_band_5ghz,
 383                                sizeof(struct ieee80211_supported_band));
 384
 385                         /* <3> init ht cap base on ant_num */
 386                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 387
 388                         _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 389                         /* <4> set mac->sband to wiphy->sband */
 390                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
 391                 } else {
 392                         RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
 393                                  rtlhal->current_bandtype);
 394                 }
 395         }
 396         /* <5> set hw caps */
 397         hw->flags = IEEE80211_HW_SIGNAL_DBM |
 398             IEEE80211_HW_RX_INCLUDES_FCS |
 399             IEEE80211_HW_AMPDU_AGGREGATION |
 400             IEEE80211_HW_CONNECTION_MONITOR |
 401             /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
 402             IEEE80211_HW_MFP_CAPABLE |
 403             IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
 404
 405         /* swlps or hwlps has been set in diff chip in init_sw_vars */
 406         if (rtlpriv->psc.swctrl_lps)
 407                 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
 408                         IEEE80211_HW_PS_NULLFUNC_STACK |
 409                         /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
 410                         0;
 411         hw->wiphy->interface_modes =
 412             BIT(NL80211_IFTYPE_AP) |
 413             BIT(NL80211_IFTYPE_STATION) |
 414             BIT(NL80211_IFTYPE_ADHOC) |
 415             BIT(NL80211_IFTYPE_MESH_POINT) |
 416             BIT(NL80211_IFTYPE_P2P_CLIENT) |
 417             BIT(NL80211_IFTYPE_P2P_GO);
 418         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 419
 420         hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 421
 422         hw->wiphy->rts_threshold = 2347;
 423
 424         hw->queues = AC_MAX;
 425         hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
 426
 427         /* TODO: Correct this value for our hw */
 428         /* TODO: define these hard code value */
 429         hw->max_listen_interval = 10;
 430         hw->max_rate_tries = 4;
 431         /* hw->max_rates = 1; */
 432         hw->sta_data_size = sizeof(struct rtl_sta_info);
 433
 434 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
 435 #ifdef CONFIG_PM
 436         if (rtlpriv->psc.wo_wlan_mode) {
 437                 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
 438                         rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
 439                 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
 440                         rtlpriv->wowlan.n_patterns =
 441                                 MAX_SUPPORT_WOL_PATTERN_NUM;
 442                         rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
 443                         rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
 444                 }
 445                 hw->wiphy->wowlan = &rtlpriv->wowlan;
 446         }
 447 #endif
 448
 449         /* <6> mac address */
 450         if (is_valid_ether_addr(rtlefuse->dev_addr)) {
 451                 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
 452         } else {
 453                 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
 454                 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
 455                 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
 456         }
 457 }
 458
 459 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
 460 {
 461         struct rtl_priv *rtlpriv = rtl_priv(hw);
 462
 463         /* <1> timer */
 464         setup_timer(&rtlpriv->works.watchdog_timer,
 465                     rtl_watch_dog_timer_callback, (unsigned long)hw);
 466         setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
 467                     rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
 468         /* <2> work queue */
 469         rtlpriv->works.hw = hw;
 470         rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
 471         INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
 472                           (void *)rtl_watchdog_wq_callback);
 473         INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
 474                           (void *)rtl_ips_nic_off_wq_callback);
 475         INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
 476                           (void *)rtl_swlps_wq_callback);
 477         INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
 478                           (void *)rtl_swlps_rfon_wq_callback);
 479         INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
 480                           (void *)rtl_fwevt_wq_callback);
 481
 482 }
 483
 484 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
 485 {
 486         struct rtl_priv *rtlpriv = rtl_priv(hw);
 487
 488         del_timer_sync(&rtlpriv->works.watchdog_timer);
 489
 490         cancel_delayed_work(&rtlpriv->works.watchdog_wq);
 491         cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
 492         cancel_delayed_work(&rtlpriv->works.ps_work);
 493         cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 494         cancel_delayed_work(&rtlpriv->works.fwevt_wq);
 495 }
 496 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
 497
 498 void rtl_init_rfkill(struct ieee80211_hw *hw)
 499 {
 500         struct rtl_priv *rtlpriv = rtl_priv(hw);
 501
 502         bool radio_state;
 503         bool blocked;
 504         u8 valid = 0;
 505
 506         /*set init state to on */
 507         rtlpriv->rfkill.rfkill_state = true;
 508         wiphy_rfkill_set_hw_state(hw->wiphy, 0);
 509
 510         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
 511
 512         if (valid) {
 513                 pr_info("rtlwifi: wireless switch is %s\n",
 514                         rtlpriv->rfkill.rfkill_state ? "on" : "off");
 515
 516                 rtlpriv->rfkill.rfkill_state = radio_state;
 517
 518                 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
 519                 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
 520         }
 521
 522         wiphy_rfkill_start_polling(hw->wiphy);
 523 }
 524 EXPORT_SYMBOL(rtl_init_rfkill);
 525
 526 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
 527 {
 528         wiphy_rfkill_stop_polling(hw->wiphy);
 529 }
 530 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
 531
 532 int rtl_init_core(struct ieee80211_hw *hw)
 533 {
 534         struct rtl_priv *rtlpriv = rtl_priv(hw);
 535         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 536
 537         /* <1> init mac80211 */
 538         _rtl_init_mac80211(hw);
 539         rtlmac->hw = hw;
 540
 541         /* <2> rate control register */
 542         hw->rate_control_algorithm = "rtl_rc";
 543
 544         /*
 545          * <3> init CRDA must come after init
 546          * mac80211 hw  in _rtl_init_mac80211.
 547          */
 548         if (rtl_regd_init(hw, rtl_reg_notifier)) {
 549                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n");
 550                 return 1;
 551         }
 552
 553         /* <4> locks */
 554         mutex_init(&rtlpriv->locks.conf_mutex);
 555         spin_lock_init(&rtlpriv->locks.ips_lock);
 556         spin_lock_init(&rtlpriv->locks.irq_th_lock);
 557         spin_lock_init(&rtlpriv->locks.h2c_lock);
 558         spin_lock_init(&rtlpriv->locks.rf_ps_lock);
 559         spin_lock_init(&rtlpriv->locks.rf_lock);
 560         spin_lock_init(&rtlpriv->locks.waitq_lock);
 561         spin_lock_init(&rtlpriv->locks.entry_list_lock);
 562         spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
 563         spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
 564         spin_lock_init(&rtlpriv->locks.fw_ps_lock);
 565         spin_lock_init(&rtlpriv->locks.lps_lock);
 566         spin_lock_init(&rtlpriv->locks.iqk_lock);
 567         /* <5> init list */
 568         INIT_LIST_HEAD(&rtlpriv->entry_list);
 569
 570         rtlmac->link_state = MAC80211_NOLINK;
 571
 572         /* <6> init deferred work */
 573         _rtl_init_deferred_work(hw);
 574
 575         return 0;
 576 }
 577 EXPORT_SYMBOL_GPL(rtl_init_core);
 578
 579 void rtl_deinit_core(struct ieee80211_hw *hw)
 580 {
 581 }
 582 EXPORT_SYMBOL_GPL(rtl_deinit_core);
 583
 584 void rtl_init_rx_config(struct ieee80211_hw *hw)
 585 {
 586         struct rtl_priv *rtlpriv = rtl_priv(hw);
 587         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 588
 589         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
 590 }
 591 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
 592
 593 /*********************************************************
 594  *
 595  * tx information functions
 596  *
 597  *********************************************************/
 598 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
 599                                           struct rtl_tcb_desc *tcb_desc,
 600                                           struct ieee80211_tx_info *info)
 601 {
 602         struct rtl_priv *rtlpriv = rtl_priv(hw);
 603         u8 rate_flag = info->control.rates[0].flags;
 604
 605         tcb_desc->use_shortpreamble = false;
 606
 607         /* 1M can only use Long Preamble. 11B spec */
 608         if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
 609                 return;
 610         else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 611                 tcb_desc->use_shortpreamble = true;
 612
 613         return;
 614 }
 615
 616 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
 617                                struct ieee80211_sta *sta,
 618                                struct rtl_tcb_desc *tcb_desc,
 619                                struct ieee80211_tx_info *info)
 620 {
 621         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 622         u8 rate_flag = info->control.rates[0].flags;
 623         u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
 624         u8 sgi_80 = 0, bw_80 = 0;
 625         tcb_desc->use_shortgi = false;
 626
 627         if (sta == NULL)
 628                 return;
 629
 630         sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
 631         sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
 632         sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
 633
 634         if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
 635                 return;
 636
 637         if (!sgi_40 && !sgi_20)
 638                 return;
 639
 640         if (mac->opmode == NL80211_IFTYPE_STATION) {
 641                 bw_40 = mac->bw_40;
 642                 bw_80 = mac->bw_80;
 643         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 644                  mac->opmode == NL80211_IFTYPE_ADHOC ||
 645                  mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 646                 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 647                 bw_80 = sta->vht_cap.vht_supported;
 648         }
 649
 650         if (bw_80) {
 651                 if (sgi_80)
 652                         tcb_desc->use_shortgi = true;
 653                 else
 654                         tcb_desc->use_shortgi = false;
 655         } else {
 656                 if (bw_40 && sgi_40)
 657                         tcb_desc->use_shortgi = true;
 658                 else if (!bw_40 && sgi_20)
 659                         tcb_desc->use_shortgi = true;
 660         }
 661
 662         if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
 663                 tcb_desc->use_shortgi = false;
 664 }
 665
 666 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
 667                                        struct rtl_tcb_desc *tcb_desc,
 668                                        struct ieee80211_tx_info *info)
 669 {
 670         struct rtl_priv *rtlpriv = rtl_priv(hw);
 671         u8 rate_flag = info->control.rates[0].flags;
 672
 673         /* Common Settings */
 674         tcb_desc->rts_stbc = false;
 675         tcb_desc->cts_enable = false;
 676         tcb_desc->rts_sc = 0;
 677         tcb_desc->rts_bw = false;
 678         tcb_desc->rts_use_shortpreamble = false;
 679         tcb_desc->rts_use_shortgi = false;
 680
 681         if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 682                 /* Use CTS-to-SELF in protection mode. */
 683                 tcb_desc->rts_enable = true;
 684                 tcb_desc->cts_enable = true;
 685                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 686         } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
 687                 /* Use RTS-CTS in protection mode. */
 688                 tcb_desc->rts_enable = true;
 689                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 690         }
 691 }
 692
 693 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
 694                                    struct ieee80211_sta *sta,
 695                                    struct rtl_tcb_desc *tcb_desc)
 696 {
 697         struct rtl_priv *rtlpriv = rtl_priv(hw);
 698         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 699         struct rtl_sta_info *sta_entry = NULL;
 700         u8 ratr_index = 7;
 701
 702         if (sta) {
 703                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 704                 ratr_index = sta_entry->ratr_index;
 705         }
 706         if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
 707                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 708                         tcb_desc->ratr_index = 0;
 709                 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
 710                                 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 711                         if (tcb_desc->multicast || tcb_desc->broadcast) {
 712                                 tcb_desc->hw_rate =
 713                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
 714                                 tcb_desc->use_driver_rate = 1;
 715                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
 716                         } else {
 717                                 tcb_desc->ratr_index = ratr_index;
 718                         }
 719                 } else if (mac->opmode == NL80211_IFTYPE_AP) {
 720                         tcb_desc->ratr_index = ratr_index;
 721                 }
 722         }
 723
 724         if (rtlpriv->dm.useramask) {
 725                 tcb_desc->ratr_index = ratr_index;
 726                 /* TODO we will differentiate adhoc and station future  */
 727                 if (mac->opmode == NL80211_IFTYPE_STATION ||
 728                     mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 729                         tcb_desc->mac_id = 0;
 730
 731                         if (mac->mode == WIRELESS_MODE_AC_5G)
 732                                 tcb_desc->ratr_index =
 733                                         RATR_INX_WIRELESS_AC_5N;
 734                         else if (mac->mode == WIRELESS_MODE_AC_24G)
 735                                 tcb_desc->ratr_index =
 736                                         RATR_INX_WIRELESS_AC_24N;
 737                         else if (mac->mode == WIRELESS_MODE_N_24G)
 738                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
 739                         else if (mac->mode == WIRELESS_MODE_N_5G)
 740                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
 741                         else if (mac->mode & WIRELESS_MODE_G)
 742                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
 743                         else if (mac->mode & WIRELESS_MODE_B)
 744                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
 745                         else if (mac->mode & WIRELESS_MODE_A)
 746                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
 747
 748                 } else if (mac->opmode == NL80211_IFTYPE_AP ||
 749                         mac->opmode == NL80211_IFTYPE_ADHOC) {
 750                         if (NULL != sta) {
 751                                 if (sta->aid > 0)
 752                                         tcb_desc->mac_id = sta->aid + 1;
 753                                 else
 754                                         tcb_desc->mac_id = 1;
 755                         } else {
 756                                 tcb_desc->mac_id = 0;
 757                         }
 758                 }
 759         }
 760 }
 761
 762 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
 763                                       struct ieee80211_sta *sta,
 764                                       struct rtl_tcb_desc *tcb_desc)
 765 {
 766         struct rtl_priv *rtlpriv = rtl_priv(hw);
 767         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 768
 769         tcb_desc->packet_bw = false;
 770         if (!sta)
 771                 return;
 772         if (mac->opmode == NL80211_IFTYPE_AP ||
 773             mac->opmode == NL80211_IFTYPE_ADHOC ||
 774             mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 775                 if (!(sta->ht_cap.ht_supported) ||
 776                     !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
 777                         return;
 778         } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 779                 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
 780                         return;
 781         }
 782         if (tcb_desc->multicast || tcb_desc->broadcast)
 783                 return;
 784
 785         /*use legency rate, shall use 20MHz */
 786         if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
 787                 return;
 788
 789         tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
 790
 791         if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
 792             rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) {
 793                 if (mac->opmode == NL80211_IFTYPE_AP ||
 794                     mac->opmode == NL80211_IFTYPE_ADHOC ||
 795                     mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 796                         if (!(sta->vht_cap.vht_supported))
 797                                 return;
 798                 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 799                         if (!mac->bw_80 ||
 800                             !(sta->vht_cap.vht_supported))
 801                                 return;
 802                 }
 803                 if (tcb_desc->hw_rate <=
 804                         rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
 805                         return;
 806                 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
 807         }
 808 }
 809
 810 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
 811                                       struct ieee80211_sta *sta)
 812 {
 813         struct rtl_priv *rtlpriv = rtl_priv(hw);
 814         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 815         u8 hw_rate;
 816         u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
 817
 818         if ((get_rf_type(rtlphy) == RF_2T2R) &&
 819             (tx_mcs_map & 0x000c) != 0x000c) {
 820                 if ((tx_mcs_map & 0x000c) >> 2 ==
 821                         IEEE80211_VHT_MCS_SUPPORT_0_7)
 822                         hw_rate =
 823                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
 824                 else if ((tx_mcs_map  & 0x000c) >> 2 ==
 825                         IEEE80211_VHT_MCS_SUPPORT_0_8)
 826                         hw_rate =
 827                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
 828                 else
 829                         hw_rate =
 830                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
 831         } else {
 832                 if ((tx_mcs_map  & 0x0003) ==
 833                         IEEE80211_VHT_MCS_SUPPORT_0_7)
 834                         hw_rate =
 835                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
 836                 else if ((tx_mcs_map  & 0x0003) ==
 837                         IEEE80211_VHT_MCS_SUPPORT_0_8)
 838                         hw_rate =
 839                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
 840                 else
 841                         hw_rate =
 842                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
 843         }
 844
 845         return hw_rate;
 846 }
 847
 848 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
 849                                   struct ieee80211_sta *sta)
 850 {
 851         struct rtl_priv *rtlpriv = rtl_priv(hw);
 852         struct rtl_phy *rtlphy = &rtlpriv->phy;
 853         u8 hw_rate;
 854
 855         if ((get_rf_type(rtlphy) == RF_2T2R) &&
 856             (sta->ht_cap.mcs.rx_mask[1] != 0))
 857                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
 858         else
 859                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
 860
 861         return hw_rate;
 862 }
 863
 864 /* mac80211's rate_idx is like this:
 865  *
 866  * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
 867  *
 868  * B/G rate:
 869  * (rx_status->flag & RX_FLAG_HT) = 0,
 870  * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
 871  *
 872  * N rate:
 873  * (rx_status->flag & RX_FLAG_HT) = 1,
 874  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 875  *
 876  * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
 877  * A rate:
 878  * (rx_status->flag & RX_FLAG_HT) = 0,
 879  * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
 880  *
 881  * N rate:
 882  * (rx_status->flag & RX_FLAG_HT) = 1,
 883  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 884  */
 885 int rtlwifi_rate_mapping(struct ieee80211_hw *hw,
 886                          bool isht, u8 desc_rate)
 887 {
 888         int rate_idx;
 889
 890         if (false == isht) {
 891                 if (IEEE80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
 892                         switch (desc_rate) {
 893                         case DESC_RATE1M:
 894                                 rate_idx = 0;
 895                                 break;
 896                         case DESC_RATE2M:
 897                                 rate_idx = 1;
 898                                 break;
 899                         case DESC_RATE5_5M:
 900                                 rate_idx = 2;
 901                                 break;
 902                         case DESC_RATE11M:
 903                                 rate_idx = 3;
 904                                 break;
 905                         case DESC_RATE6M:
 906                                 rate_idx = 4;
 907                                 break;
 908                         case DESC_RATE9M:
 909                                 rate_idx = 5;
 910                                 break;
 911                         case DESC_RATE12M:
 912                                 rate_idx = 6;
 913                                 break;
 914                         case DESC_RATE18M:
 915                                 rate_idx = 7;
 916                                 break;
 917                         case DESC_RATE24M:
 918                                 rate_idx = 8;
 919                                 break;
 920                         case DESC_RATE36M:
 921                                 rate_idx = 9;
 922                                 break;
 923                         case DESC_RATE48M:
 924                                 rate_idx = 10;
 925                                 break;
 926                         case DESC_RATE54M:
 927                                 rate_idx = 11;
 928                                 break;
 929                         default:
 930                                 rate_idx = 0;
 931                                 break;
 932                         }
 933                 } else {
 934                         switch (desc_rate) {
 935                         case DESC_RATE6M:
 936                                 rate_idx = 0;
 937                                 break;
 938                         case DESC_RATE9M:
 939                                 rate_idx = 1;
 940                                 break;
 941                         case DESC_RATE12M:
 942                                 rate_idx = 2;
 943                                 break;
 944                         case DESC_RATE18M:
 945                                 rate_idx = 3;
 946                                 break;
 947                         case DESC_RATE24M:
 948                                 rate_idx = 4;
 949                                 break;
 950                         case DESC_RATE36M:
 951                                 rate_idx = 5;
 952                                 break;
 953                         case DESC_RATE48M:
 954                                 rate_idx = 6;
 955                                 break;
 956                         case DESC_RATE54M:
 957                                 rate_idx = 7;
 958                                 break;
 959                         default:
 960                                 rate_idx = 0;
 961                                 break;
 962                         }
 963                 }
 964         } else {
 965                 switch (desc_rate) {
 966                 case DESC_RATEMCS0:
 967                         rate_idx = 0;
 968                         break;
 969                 case DESC_RATEMCS1:
 970                         rate_idx = 1;
 971                         break;
 972                 case DESC_RATEMCS2:
 973                         rate_idx = 2;
 974                         break;
 975                 case DESC_RATEMCS3:
 976                         rate_idx = 3;
 977                         break;
 978                 case DESC_RATEMCS4:
 979                         rate_idx = 4;
 980                         break;
 981                 case DESC_RATEMCS5:
 982                         rate_idx = 5;
 983                         break;
 984                 case DESC_RATEMCS6:
 985                         rate_idx = 6;
 986                         break;
 987                 case DESC_RATEMCS7:
 988                         rate_idx = 7;
 989                         break;
 990                 case DESC_RATEMCS8:
 991                         rate_idx = 8;
 992                         break;
 993                 case DESC_RATEMCS9:
 994                         rate_idx = 9;
 995                         break;
 996                 case DESC_RATEMCS10:
 997                         rate_idx = 10;
 998                         break;
 999                 case DESC_RATEMCS11:
1000                         rate_idx = 11;
1001                         break;
1002                 case DESC_RATEMCS12:
1003                         rate_idx = 12;
1004                         break;
1005                 case DESC_RATEMCS13:
1006                         rate_idx = 13;
1007                         break;
1008                 case DESC_RATEMCS14:
1009                         rate_idx = 14;
1010                         break;
1011                 case DESC_RATEMCS15:
1012                         rate_idx = 15;
1013                         break;
1014                 default:
1015                         rate_idx = 0;
1016                         break;
1017                 }
1018         }
1019         return rate_idx;
1020 }
1021 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1022
1023 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1024                       struct ieee80211_tx_info *info,
1025                       struct ieee80211_sta *sta,
1026                       struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1027 {
1028         struct rtl_priv *rtlpriv = rtl_priv(hw);
1029         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1030         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1031         struct ieee80211_rate *txrate;
1032         __le16 fc = rtl_get_fc(skb);
1033
1034         txrate = ieee80211_get_tx_rate(hw, info);
1035         if (txrate)
1036                 tcb_desc->hw_rate = txrate->hw_value;
1037
1038         if (ieee80211_is_data(fc)) {
1039                 /*
1040                  *we set data rate INX 0
1041                  *in rtl_rc.c   if skb is special data or
1042                  *mgt which need low data rate.
1043                  */
1044
1045                 /*
1046                  *So tcb_desc->hw_rate is just used for
1047                  *special data and mgt frames
1048                  */
1049                 if (info->control.rates[0].idx == 0 ||
1050                                 ieee80211_is_nullfunc(fc)) {
1051                         tcb_desc->use_driver_rate = true;
1052                         tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1053
1054                         tcb_desc->disable_ratefallback = 1;
1055                 } else {
1056                         /*
1057                          *because hw will nerver use hw_rate
1058                          *when tcb_desc->use_driver_rate = false
1059                          *so we never set highest N rate here,
1060                          *and N rate will all be controlled by FW
1061                          *when tcb_desc->use_driver_rate = false
1062                          */
1063                         if (sta && sta->vht_cap.vht_supported) {
1064                                 tcb_desc->hw_rate =
1065                                 _rtl_get_vht_highest_n_rate(hw, sta);
1066                         } else {
1067                                 if (sta && (sta->ht_cap.ht_supported)) {
1068                                         tcb_desc->hw_rate =
1069                                                 _rtl_get_highest_n_rate(hw, sta);
1070                                 } else {
1071                                         if (rtlmac->mode == WIRELESS_MODE_B) {
1072                                                 tcb_desc->hw_rate =
1073                                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1074                                         } else {
1075                                                 tcb_desc->hw_rate =
1076                                                     rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1077                                         }
1078                                 }
1079                         }
1080                 }
1081
1082                 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
1083                         tcb_desc->multicast = 1;
1084                 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
1085                         tcb_desc->broadcast = 1;
1086
1087                 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1088                 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1089                 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1090                 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1091                 _rtl_query_protection_mode(hw, tcb_desc, info);
1092         } else {
1093                 tcb_desc->use_driver_rate = true;
1094                 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1095                 tcb_desc->disable_ratefallback = 1;
1096                 tcb_desc->mac_id = 0;
1097                 tcb_desc->packet_bw = false;
1098         }
1099 }
1100 EXPORT_SYMBOL(rtl_get_tcb_desc);
1101
1102 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1103 {
1104         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1105         struct rtl_priv *rtlpriv = rtl_priv(hw);
1106         __le16 fc = rtl_get_fc(skb);
1107
1108         if (rtlpriv->dm.supp_phymode_switch &&
1109             mac->link_state < MAC80211_LINKED &&
1110             (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1111                 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1112                         rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1113         }
1114         if (ieee80211_is_auth(fc)) {
1115                 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1116                 rtl_ips_nic_on(hw);
1117
1118                 mac->link_state = MAC80211_LINKING;
1119                 /* Dul mac */
1120                 rtlpriv->phy.need_iqk = true;
1121
1122         }
1123
1124         return true;
1125 }
1126 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1127
1128 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1129                                 u8 *bssid, u16 tid);
1130
1131 static void process_agg_start(struct ieee80211_hw *hw,
1132                               struct ieee80211_hdr *hdr, u16 tid)
1133 {
1134         struct rtl_priv *rtlpriv = rtl_priv(hw);
1135         struct ieee80211_rx_status rx_status = { 0 };
1136         struct sk_buff *skb_delba = NULL;
1137
1138         skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1139         if (skb_delba) {
1140                 rx_status.freq = hw->conf.chandef.chan->center_freq;
1141                 rx_status.band = hw->conf.chandef.chan->band;
1142                 rx_status.flag |= RX_FLAG_DECRYPTED;
1143                 rx_status.flag |= RX_FLAG_MACTIME_START;
1144                 rx_status.rate_idx = 0;
1145                 rx_status.signal = 50 + 10;
1146                 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1147                        &rx_status, sizeof(rx_status));
1148                 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1149                               "fake del\n",
1150                               skb_delba->data,
1151                               skb_delba->len);
1152                 ieee80211_rx_irqsafe(hw, skb_delba);
1153         }
1154 }
1155
1156 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1157 {
1158         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1159         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1160         struct rtl_priv *rtlpriv = rtl_priv(hw);
1161         __le16 fc = rtl_get_fc(skb);
1162         u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1163         u8 category;
1164
1165         if (!ieee80211_is_action(fc))
1166                 return true;
1167
1168         category = *act;
1169         act++;
1170         switch (category) {
1171         case ACT_CAT_BA:
1172                 switch (*act) {
1173                 case ACT_ADDBAREQ:
1174                         if (mac->act_scanning)
1175                                 return false;
1176
1177                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1178                                 "%s ACT_ADDBAREQ From :%pM\n",
1179                                 is_tx ? "Tx" : "Rx", hdr->addr2);
1180                         RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1181                                 skb->data, skb->len);
1182                         if (!is_tx) {
1183                                 struct ieee80211_sta *sta = NULL;
1184                                 struct rtl_sta_info *sta_entry = NULL;
1185                                 struct rtl_tid_data *tid_data;
1186                                 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1187                                 u16 capab = 0, tid = 0;
1188
1189                                 rcu_read_lock();
1190                                 sta = rtl_find_sta(hw, hdr->addr3);
1191                                 if (sta == NULL) {
1192                                         RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1193                                                  DBG_DMESG, "sta is NULL\n");
1194                                         rcu_read_unlock();
1195                                         return true;
1196                                 }
1197
1198                                 sta_entry =
1199                                         (struct rtl_sta_info *)sta->drv_priv;
1200                                 if (!sta_entry) {
1201                                         rcu_read_unlock();
1202                                         return true;
1203                                 }
1204                                 capab =
1205                                   le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1206                                 tid = (capab &
1207                                        IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1208                                 tid_data = &sta_entry->tids[tid];
1209                                 if (tid_data->agg.rx_agg_state ==
1210                                     RTL_RX_AGG_START)
1211                                         process_agg_start(hw, hdr, tid);
1212                                 rcu_read_unlock();
1213                         }
1214                         break;
1215                 case ACT_ADDBARSP:
1216                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1217                                  "%s ACT_ADDBARSP From :%pM\n",
1218                                   is_tx ? "Tx" : "Rx", hdr->addr2);
1219                         break;
1220                 case ACT_DELBA:
1221                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1222                                  "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1223                         break;
1224                 }
1225                 break;
1226         default:
1227                 break;
1228         }
1229
1230         return true;
1231 }
1232 EXPORT_SYMBOL_GPL(rtl_action_proc);
1233
1234 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc)
1235 {
1236         rtlpriv->ra.is_special_data = true;
1237         if (rtlpriv->cfg->ops->get_btc_status())
1238                 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1239                                         rtlpriv, 1);
1240         rtlpriv->enter_ps = false;
1241         schedule_work(&rtlpriv->works.lps_change_work);
1242         ppsc->last_delaylps_stamp_jiffies = jiffies;
1243 }
1244
1245 /*should call before software enc*/
1246 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1247 {
1248         struct rtl_priv *rtlpriv = rtl_priv(hw);
1249         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1250         __le16 fc = rtl_get_fc(skb);
1251         u16 ether_type;
1252         u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1253         u8 encrypt_header_len = 0;
1254         u8 offset;
1255         const struct iphdr *ip;
1256
1257         if (!ieee80211_is_data(fc))
1258                 goto end;
1259
1260         switch (rtlpriv->sec.pairwise_enc_algorithm) {
1261         case WEP40_ENCRYPTION:
1262         case WEP104_ENCRYPTION:
1263                 encrypt_header_len = 4;/*WEP_IV_LEN*/
1264                 break;
1265         case TKIP_ENCRYPTION:
1266                 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1267                 break;
1268         case AESCCMP_ENCRYPTION:
1269                 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1270                 break;
1271         default:
1272                 break;
1273         }
1274
1275         offset = mac_hdr_len + SNAP_SIZE + encrypt_header_len;
1276         ether_type = be16_to_cpup((__be16 *)(skb->data + offset));
1277
1278         if (ETH_P_IP == ether_type) {
1279                 ip = (struct iphdr *)((u8 *)skb->data + offset +
1280                      PROTOC_TYPE_SIZE);
1281                 if (IPPROTO_UDP == ip->protocol) {
1282                         struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1283                                                                (ip->ihl << 2));
1284                         if (((((u8 *)udp)[1] == 68) &&
1285                              (((u8 *)udp)[3] == 67)) ||
1286                             ((((u8 *)udp)[1] == 67) &&
1287                              (((u8 *)udp)[3] == 68))) {
1288                                 /* 68 : UDP BOOTP client
1289                                  * 67 : UDP BOOTP server
1290                                  */
1291                                 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1292                                          DBG_DMESG, "dhcp %s !!\n",
1293                                          (is_tx) ? "Tx" : "Rx");
1294
1295                                 if (is_tx)
1296                                         setup_arp_tx(rtlpriv, ppsc);
1297                                 return true;
1298                         }
1299                 }
1300         } else if (ETH_P_ARP == ether_type) {
1301                 if (is_tx)
1302                         setup_arp_tx(rtlpriv, ppsc);
1303
1304                 return true;
1305         } else if (ETH_P_PAE == ether_type) {
1306                 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1307                          "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1308
1309                 if (is_tx) {
1310                         rtlpriv->ra.is_special_data = true;
1311                         rtlpriv->enter_ps = false;
1312                         schedule_work(&rtlpriv->works.lps_change_work);
1313                         ppsc->last_delaylps_stamp_jiffies = jiffies;
1314                 }
1315
1316                 return true;
1317         } else if (0x86DD == ether_type) {
1318                 return true;
1319         }
1320
1321 end:
1322         rtlpriv->ra.is_special_data = false;
1323         return false;
1324 }
1325 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1326
1327 /*********************************************************
1328  *
1329  * functions called by core.c
1330  *
1331  *********************************************************/
1332 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1333                      struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1334 {
1335         struct rtl_priv *rtlpriv = rtl_priv(hw);
1336         struct rtl_tid_data *tid_data;
1337         struct rtl_sta_info *sta_entry = NULL;
1338
1339         if (sta == NULL)
1340                 return -EINVAL;
1341
1342         if (unlikely(tid >= MAX_TID_COUNT))
1343                 return -EINVAL;
1344
1345         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1346         if (!sta_entry)
1347                 return -ENXIO;
1348         tid_data = &sta_entry->tids[tid];
1349
1350         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1351                  "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1352                  tid_data->seq_number);
1353
1354         *ssn = tid_data->seq_number;
1355         tid_data->agg.agg_state = RTL_AGG_START;
1356
1357         ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1358         return 0;
1359 }
1360
1361 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1362                     struct ieee80211_sta *sta, u16 tid)
1363 {
1364         struct rtl_priv *rtlpriv = rtl_priv(hw);
1365         struct rtl_tid_data *tid_data;
1366         struct rtl_sta_info *sta_entry = NULL;
1367
1368         if (sta == NULL)
1369                 return -EINVAL;
1370
1371         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1372                  "on ra = %pM tid = %d\n", sta->addr, tid);
1373
1374         if (unlikely(tid >= MAX_TID_COUNT))
1375                 return -EINVAL;
1376
1377         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1378         tid_data = &sta_entry->tids[tid];
1379         sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1380
1381         ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1382         return 0;
1383 }
1384
1385 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1386                      struct ieee80211_sta *sta, u16 tid)
1387 {
1388         struct rtl_priv *rtlpriv = rtl_priv(hw);
1389         struct rtl_tid_data *tid_data;
1390         struct rtl_sta_info *sta_entry = NULL;
1391
1392         if (sta == NULL)
1393                 return -EINVAL;
1394
1395         if (unlikely(tid >= MAX_TID_COUNT))
1396                 return -EINVAL;
1397
1398         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1399         if (!sta_entry)
1400                 return -ENXIO;
1401         tid_data = &sta_entry->tids[tid];
1402
1403         RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1404                  "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1405                  tid_data->seq_number);
1406
1407         tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1408         return 0;
1409 }
1410
1411 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1412                     struct ieee80211_sta *sta, u16 tid)
1413 {
1414         struct rtl_priv *rtlpriv = rtl_priv(hw);
1415         struct rtl_sta_info *sta_entry = NULL;
1416
1417         if (sta == NULL)
1418                 return -EINVAL;
1419
1420         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1421                  "on ra = %pM tid = %d\n", sta->addr, tid);
1422
1423         if (unlikely(tid >= MAX_TID_COUNT))
1424                 return -EINVAL;
1425
1426         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1427         sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1428
1429         return 0;
1430 }
1431 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1432                 struct ieee80211_sta *sta, u16 tid)
1433 {
1434         struct rtl_priv *rtlpriv = rtl_priv(hw);
1435         struct rtl_sta_info *sta_entry = NULL;
1436
1437         if (sta == NULL)
1438                 return -EINVAL;
1439
1440         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1441                  "on ra = %pM tid = %d\n", sta->addr, tid);
1442
1443         if (unlikely(tid >= MAX_TID_COUNT))
1444                 return -EINVAL;
1445
1446         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1447         sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1448
1449         return 0;
1450 }
1451
1452 /*********************************************************
1453  *
1454  * wq & timer callback functions
1455  *
1456  *********************************************************/
1457 /* this function is used for roaming */
1458 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1459 {
1460         struct rtl_priv *rtlpriv = rtl_priv(hw);
1461         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1462
1463         if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1464                 return;
1465
1466         if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1467                 return;
1468
1469         /* check if this really is a beacon */
1470         if (!ieee80211_is_beacon(hdr->frame_control) &&
1471             !ieee80211_is_probe_resp(hdr->frame_control))
1472                 return;
1473
1474         /* min. beacon length + FCS_LEN */
1475         if (skb->len <= 40 + FCS_LEN)
1476                 return;
1477
1478         /* and only beacons from the associated BSSID, please */
1479         if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1480                 return;
1481
1482         rtlpriv->link_info.bcn_rx_inperiod++;
1483 }
1484 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1485
1486 void rtl_watchdog_wq_callback(void *data)
1487 {
1488         struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1489                                                             struct rtl_works,
1490                                                             watchdog_wq);
1491         struct ieee80211_hw *hw = rtlworks->hw;
1492         struct rtl_priv *rtlpriv = rtl_priv(hw);
1493         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1494         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1495         bool busytraffic = false;
1496         bool tx_busy_traffic = false;
1497         bool rx_busy_traffic = false;
1498         bool higher_busytraffic = false;
1499         bool higher_busyrxtraffic = false;
1500         u8 idx, tid;
1501         u32 rx_cnt_inp4eriod = 0;
1502         u32 tx_cnt_inp4eriod = 0;
1503         u32 aver_rx_cnt_inperiod = 0;
1504         u32 aver_tx_cnt_inperiod = 0;
1505         u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1506         u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1507
1508         if (is_hal_stop(rtlhal))
1509                 return;
1510
1511         /* <1> Determine if action frame is allowed */
1512         if (mac->link_state > MAC80211_NOLINK) {
1513                 if (mac->cnt_after_linked < 20)
1514                         mac->cnt_after_linked++;
1515         } else {
1516                 mac->cnt_after_linked = 0;
1517         }
1518
1519         /* <2> to check if traffic busy, if
1520          * busytraffic we don't change channel
1521          */
1522         if (mac->link_state >= MAC80211_LINKED) {
1523
1524                 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1525                 for (idx = 0; idx <= 2; idx++) {
1526                         rtlpriv->link_info.num_rx_in4period[idx] =
1527                             rtlpriv->link_info.num_rx_in4period[idx + 1];
1528                         rtlpriv->link_info.num_tx_in4period[idx] =
1529                             rtlpriv->link_info.num_tx_in4period[idx + 1];
1530                 }
1531                 rtlpriv->link_info.num_rx_in4period[3] =
1532                     rtlpriv->link_info.num_rx_inperiod;
1533                 rtlpriv->link_info.num_tx_in4period[3] =
1534                     rtlpriv->link_info.num_tx_inperiod;
1535                 for (idx = 0; idx <= 3; idx++) {
1536                         rx_cnt_inp4eriod +=
1537                             rtlpriv->link_info.num_rx_in4period[idx];
1538                         tx_cnt_inp4eriod +=
1539                             rtlpriv->link_info.num_tx_in4period[idx];
1540                 }
1541                 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1542                 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1543
1544                 /* (2) check traffic busy */
1545                 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1546                         busytraffic = true;
1547                         if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1548                                 rx_busy_traffic = true;
1549                         else
1550                                 tx_busy_traffic = false;
1551                 }
1552
1553                 /* Higher Tx/Rx data. */
1554                 if (aver_rx_cnt_inperiod > 4000 ||
1555                     aver_tx_cnt_inperiod > 4000) {
1556                         higher_busytraffic = true;
1557
1558                         /* Extremely high Rx data. */
1559                         if (aver_rx_cnt_inperiod > 5000)
1560                                 higher_busyrxtraffic = true;
1561                 }
1562
1563                 /* check every tid's tx traffic */
1564                 for (tid = 0; tid <= 7; tid++) {
1565                         for (idx = 0; idx <= 2; idx++)
1566                                 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1567                                         rtlpriv->link_info.tidtx_in4period[tid]
1568                                         [idx + 1];
1569                         rtlpriv->link_info.tidtx_in4period[tid][3] =
1570                                 rtlpriv->link_info.tidtx_inperiod[tid];
1571
1572                         for (idx = 0; idx <= 3; idx++)
1573                                 tidtx_inp4eriod[tid] +=
1574                                    rtlpriv->link_info.tidtx_in4period[tid][idx];
1575                         aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1576                         if (aver_tidtx_inperiod[tid] > 5000)
1577                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1578                                                                         true;
1579                         else
1580                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1581                                                                         false;
1582                 }
1583
1584                 if (((rtlpriv->link_info.num_rx_inperiod +
1585                       rtlpriv->link_info.num_tx_inperiod) > 8) ||
1586                     (rtlpriv->link_info.num_rx_inperiod > 2))
1587                         rtl_lps_enter(hw);
1588                 else
1589                         rtl_lps_leave(hw);
1590         }
1591
1592         rtlpriv->link_info.num_rx_inperiod = 0;
1593         rtlpriv->link_info.num_tx_inperiod = 0;
1594         for (tid = 0; tid <= 7; tid++)
1595                 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1596
1597         rtlpriv->link_info.busytraffic = busytraffic;
1598         rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1599         rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1600         rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1601         rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1602
1603         /* <3> DM */
1604         if (!rtlpriv->cfg->mod_params->disable_watchdog)
1605                 rtlpriv->cfg->ops->dm_watchdog(hw);
1606
1607         /* <4> roaming */
1608         if (mac->link_state == MAC80211_LINKED &&
1609             mac->opmode == NL80211_IFTYPE_STATION) {
1610                 if ((rtlpriv->link_info.bcn_rx_inperiod +
1611                     rtlpriv->link_info.num_rx_inperiod) == 0) {
1612                         rtlpriv->link_info.roam_times++;
1613                         RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1614                                  "AP off for %d s\n",
1615                                 (rtlpriv->link_info.roam_times * 2));
1616
1617                         /* if we can't recv beacon for 10s,
1618                          * we should reconnect this AP
1619                          */
1620                         if (rtlpriv->link_info.roam_times >= 5) {
1621                                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1622                                          "AP off, try to reconnect now\n");
1623                                 rtlpriv->link_info.roam_times = 0;
1624                                 ieee80211_connection_loss(
1625                                         rtlpriv->mac80211.vif);
1626                         }
1627                 } else {
1628                         rtlpriv->link_info.roam_times = 0;
1629                 }
1630         }
1631
1632         if (rtlpriv->cfg->ops->get_btc_status())
1633                 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
1634
1635         rtlpriv->link_info.bcn_rx_inperiod = 0;
1636 }
1637
1638 void rtl_watch_dog_timer_callback(unsigned long data)
1639 {
1640         struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1641         struct rtl_priv *rtlpriv = rtl_priv(hw);
1642
1643         queue_delayed_work(rtlpriv->works.rtl_wq,
1644                            &rtlpriv->works.watchdog_wq, 0);
1645
1646         mod_timer(&rtlpriv->works.watchdog_timer,
1647                   jiffies + MSECS(RTL_WATCH_DOG_TIME));
1648 }
1649 void rtl_fwevt_wq_callback(void *data)
1650 {
1651         struct rtl_works *rtlworks =
1652                 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1653         struct ieee80211_hw *hw = rtlworks->hw;
1654         struct rtl_priv *rtlpriv = rtl_priv(hw);
1655
1656         rtlpriv->cfg->ops->c2h_command_handle(hw);
1657 }
1658 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1659 {
1660         struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1661         struct rtl_priv *rtlpriv = rtl_priv(hw);
1662         struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1663
1664         if (buddy_priv == NULL)
1665                 return;
1666
1667         rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1668 }
1669 /*********************************************************
1670  *
1671  * frame process functions
1672  *
1673  *********************************************************/
1674 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1675 {
1676         struct ieee80211_mgmt *mgmt = (void *)data;
1677         u8 *pos, *end;
1678
1679         pos = (u8 *)mgmt->u.beacon.variable;
1680         end = data + len;
1681         while (pos < end) {
1682                 if (pos + 2 + pos[1] > end)
1683                         return NULL;
1684
1685                 if (pos[0] == ie)
1686                         return pos;
1687
1688                 pos += 2 + pos[1];
1689         }
1690         return NULL;
1691 }
1692
1693 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1694 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1695 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1696                                      enum ieee80211_smps_mode smps,
1697                                      u8 *da, u8 *bssid)
1698 {
1699         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1700         struct sk_buff *skb;
1701         struct ieee80211_mgmt *action_frame;
1702
1703         /* 27 = header + category + action + smps mode */
1704         skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1705         if (!skb)
1706                 return NULL;
1707
1708         skb_reserve(skb, hw->extra_tx_headroom);
1709         action_frame = (void *)skb_put(skb, 27);
1710         memset(action_frame, 0, 27);
1711         memcpy(action_frame->da, da, ETH_ALEN);
1712         memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1713         memcpy(action_frame->bssid, bssid, ETH_ALEN);
1714         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1715                                                   IEEE80211_STYPE_ACTION);
1716         action_frame->u.action.category = WLAN_CATEGORY_HT;
1717         action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1718         switch (smps) {
1719         case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1720         case IEEE80211_SMPS_NUM_MODES:/* 4 */
1721                 WARN_ON(1);
1722         /* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
1723          * According to Kernel Code, here is right.
1724          */
1725         case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1726                 action_frame->u.action.u.ht_smps.smps_control =
1727                                 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1728                 break;
1729         case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1730                 action_frame->u.action.u.ht_smps.smps_control =
1731                                 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1732                 break;
1733         case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1734                 action_frame->u.action.u.ht_smps.smps_control =
1735                                 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1736                 break;
1737         }
1738
1739         return skb;
1740 }
1741
1742 int rtl_send_smps_action(struct ieee80211_hw *hw,
1743                          struct ieee80211_sta *sta,
1744                          enum ieee80211_smps_mode smps)
1745 {
1746         struct rtl_priv *rtlpriv = rtl_priv(hw);
1747         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1748         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1749         struct sk_buff *skb = NULL;
1750         struct rtl_tcb_desc tcb_desc;
1751         u8 bssid[ETH_ALEN] = {0};
1752
1753         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1754
1755         if (rtlpriv->mac80211.act_scanning)
1756                 goto err_free;
1757
1758         if (!sta)
1759                 goto err_free;
1760
1761         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1762                 goto err_free;
1763
1764         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1765                 goto err_free;
1766
1767         if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1768                 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1769         else
1770                 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1771
1772         skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1773         /* this is a type = mgmt * stype = action frame */
1774         if (skb) {
1775                 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1776                 struct rtl_sta_info *sta_entry =
1777                         (struct rtl_sta_info *) sta->drv_priv;
1778                 sta_entry->mimo_ps = smps;
1779                 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */
1780
1781                 info->control.rates[0].idx = 0;
1782                 info->band = hw->conf.chandef.chan->band;
1783                 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1784         }
1785         return 1;
1786
1787 err_free:
1788         return 0;
1789 }
1790 EXPORT_SYMBOL(rtl_send_smps_action);
1791
1792 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
1793 {
1794         struct rtl_priv *rtlpriv = rtl_priv(hw);
1795         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1796         enum io_type iotype;
1797
1798         if (!is_hal_stop(rtlhal)) {
1799                 switch (operation) {
1800                 case SCAN_OPT_BACKUP:
1801                         iotype = IO_CMD_PAUSE_DM_BY_SCAN;
1802                         rtlpriv->cfg->ops->set_hw_reg(hw,
1803                                                       HW_VAR_IO_CMD,
1804                                                       (u8 *)&iotype);
1805                         break;
1806                 case SCAN_OPT_RESTORE:
1807                         iotype = IO_CMD_RESUME_DM_BY_SCAN;
1808                         rtlpriv->cfg->ops->set_hw_reg(hw,
1809                                                       HW_VAR_IO_CMD,
1810                                                       (u8 *)&iotype);
1811                         break;
1812                 default:
1813                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1814                                  "Unknown Scan Backup operation.\n");
1815                         break;
1816                 }
1817         }
1818 }
1819 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
1820
1821 /* because mac80211 have issues when can receive del ba
1822  * so here we just make a fake del_ba if we receive a ba_req
1823  * but rx_agg was opened to let mac80211 release some ba
1824  * related resources, so please this del_ba for tx
1825  */
1826 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1827                                 u8 *sa, u8 *bssid, u16 tid)
1828 {
1829         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1830         struct sk_buff *skb;
1831         struct ieee80211_mgmt *action_frame;
1832         u16 params;
1833
1834         /* 27 = header + category + action + smps mode */
1835         skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1836         if (!skb)
1837                 return NULL;
1838
1839         skb_reserve(skb, hw->extra_tx_headroom);
1840         action_frame = (void *)skb_put(skb, 34);
1841         memset(action_frame, 0, 34);
1842         memcpy(action_frame->sa, sa, ETH_ALEN);
1843         memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1844         memcpy(action_frame->bssid, bssid, ETH_ALEN);
1845         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1846                                                   IEEE80211_STYPE_ACTION);
1847         action_frame->u.action.category = WLAN_CATEGORY_BACK;
1848         action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1849         params = (u16)(1 << 11);        /* bit 11 initiator */
1850         params |= (u16)(tid << 12);     /* bit 15:12 TID number */
1851
1852         action_frame->u.action.u.delba.params = cpu_to_le16(params);
1853         action_frame->u.action.u.delba.reason_code =
1854                 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1855
1856         return skb;
1857 }
1858
1859 /*********************************************************
1860  *
1861  * IOT functions
1862  *
1863  *********************************************************/
1864 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1865                                   struct octet_string vendor_ie)
1866 {
1867         struct rtl_priv *rtlpriv = rtl_priv(hw);
1868         bool matched = false;
1869         static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1870         static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1871         static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1872         static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1873         static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1874         static u8 racap[] = { 0x00, 0x0c, 0x43 };
1875         static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1876         static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1877
1878         if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1879                 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1880                 rtlpriv->mac80211.vendor = PEER_ATH;
1881                 matched = true;
1882         } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1883                 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1884                 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1885                 rtlpriv->mac80211.vendor = PEER_BROAD;
1886                 matched = true;
1887         } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1888                 rtlpriv->mac80211.vendor = PEER_RAL;
1889                 matched = true;
1890         } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1891                 rtlpriv->mac80211.vendor = PEER_CISCO;
1892                 matched = true;
1893         } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1894                 rtlpriv->mac80211.vendor = PEER_MARV;
1895                 matched = true;
1896         }
1897
1898         return matched;
1899 }
1900
1901 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1902                 unsigned int len)
1903 {
1904         struct ieee80211_mgmt *mgmt = (void *)data;
1905         struct octet_string vendor_ie;
1906         u8 *pos, *end;
1907
1908         pos = (u8 *)mgmt->u.beacon.variable;
1909         end = data + len;
1910         while (pos < end) {
1911                 if (pos[0] == 221) {
1912                         vendor_ie.length = pos[1];
1913                         vendor_ie.octet = &pos[2];
1914                         if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1915                                 return true;
1916                 }
1917
1918                 if (pos + 2 + pos[1] > end)
1919                         return false;
1920
1921                 pos += 2 + pos[1];
1922         }
1923         return false;
1924 }
1925
1926 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1927 {
1928         struct rtl_priv *rtlpriv = rtl_priv(hw);
1929         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1930         struct ieee80211_hdr *hdr = (void *)data;
1931         u32 vendor = PEER_UNKNOWN;
1932
1933         static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1934         static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1935         static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1936         static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1937         static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1938         static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1939         static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1940         static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1941         static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1942         static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1943         static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1944         static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1945         static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1946         static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1947         static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1948         static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1949
1950         if (mac->opmode != NL80211_IFTYPE_STATION)
1951                 return;
1952
1953         if (mac->link_state == MAC80211_NOLINK) {
1954                 mac->vendor = PEER_UNKNOWN;
1955                 return;
1956         }
1957
1958         if (mac->cnt_after_linked > 2)
1959                 return;
1960
1961         /* check if this really is a beacon */
1962         if (!ieee80211_is_beacon(hdr->frame_control))
1963                 return;
1964
1965         /* min. beacon length + FCS_LEN */
1966         if (len <= 40 + FCS_LEN)
1967                 return;
1968
1969         /* and only beacons from the associated BSSID, please */
1970         if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
1971                 return;
1972
1973         if (rtl_find_221_ie(hw, data, len))
1974                 vendor = mac->vendor;
1975
1976         if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1977                 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1978                 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1979                 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1980                 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1981                 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1982                 vendor == PEER_ATH) {
1983                 vendor = PEER_ATH;
1984                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
1985         } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1986                 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1987                 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1988                 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1989                 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1990                 vendor == PEER_RAL) {
1991                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
1992                 vendor = PEER_RAL;
1993         } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1994                 vendor == PEER_CISCO) {
1995                 vendor = PEER_CISCO;
1996                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
1997         } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1998                 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1999                 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2000                 vendor == PEER_BROAD) {
2001                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2002                 vendor = PEER_BROAD;
2003         } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2004                 vendor == PEER_MARV) {
2005                 vendor = PEER_MARV;
2006                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2007         }
2008
2009         mac->vendor = vendor;
2010 }
2011 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2012
2013 /*********************************************************
2014  *
2015  * sysfs functions
2016  *
2017  *********************************************************/
2018 static ssize_t rtl_show_debug_level(struct device *d,
2019                                     struct device_attribute *attr, char *buf)
2020 {
2021         struct ieee80211_hw *hw = dev_get_drvdata(d);
2022         struct rtl_priv *rtlpriv = rtl_priv(hw);
2023
2024         return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
2025 }
2026
2027 static ssize_t rtl_store_debug_level(struct device *d,
2028                                      struct device_attribute *attr,
2029                                      const char *buf, size_t count)
2030 {
2031         struct ieee80211_hw *hw = dev_get_drvdata(d);
2032         struct rtl_priv *rtlpriv = rtl_priv(hw);
2033         unsigned long val;
2034         int ret;
2035
2036         ret = kstrtoul(buf, 0, &val);
2037         if (ret) {
2038                 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2039                          "%s is not in hex or decimal form.\n", buf);
2040         } else {
2041                 rtlpriv->dbg.global_debuglevel = val;
2042                 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2043                          "debuglevel:%x\n",
2044                          rtlpriv->dbg.global_debuglevel);
2045         }
2046
2047         return strnlen(buf, count);
2048 }
2049
2050 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
2051                    rtl_show_debug_level, rtl_store_debug_level);
2052
2053 static struct attribute *rtl_sysfs_entries[] = {
2054
2055         &dev_attr_debug_level.attr,
2056
2057         NULL
2058 };
2059
2060 /*
2061  * "name" is folder name witch will be
2062  * put in device directory like :
2063  * sys/devices/pci0000:00/0000:00:1c.4/
2064  * 0000:06:00.0/rtl_sysfs
2065  */
2066 struct attribute_group rtl_attribute_group = {
2067         .name = "rtlsysfs",
2068         .attrs = rtl_sysfs_entries,
2069 };
2070 EXPORT_SYMBOL_GPL(rtl_attribute_group);
2071
2072 MODULE_AUTHOR("lizhaoming       <chaoming_li@realsil.com.cn>");
2073 MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
2074 MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
2075 MODULE_LICENSE("GPL");
2076 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2077
2078 struct rtl_global_var rtl_global_var = {};
2079 EXPORT_SYMBOL_GPL(rtl_global_var);
2080
2081 static int __init rtl_core_module_init(void)
2082 {
2083         if (rtl_rate_control_register())
2084                 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2085
2086         /* init some global vars */
2087         INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2088         spin_lock_init(&rtl_global_var.glb_list_lock);
2089
2090         return 0;
2091 }
2092
2093 static void __exit rtl_core_module_exit(void)
2094 {
2095         /*RC*/
2096         rtl_rate_control_unregister();
2097 }
2098
2099 module_init(rtl_core_module_init);
2100 module_exit(rtl_core_module_exit);