drivers/net/wireless/realtek/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 = NL80211_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 = NL80211_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[NL80211_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                 pr_info("Support phy mode switch\n");
 211
 212                 ht_cap->mcs.rx_mask[0] = 0xFF;
 213                 ht_cap->mcs.rx_mask[1] = 0xFF;
 214                 ht_cap->mcs.rx_mask[4] = 0x01;
 215
 216                 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 217         } else {
 218                 if (get_rf_type(rtlphy) == RF_1T2R ||
 219                     get_rf_type(rtlphy) == RF_2T2R) {
 220                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 221                                  "1T2R or 2T2R\n");
 222                         ht_cap->mcs.rx_mask[0] = 0xFF;
 223                         ht_cap->mcs.rx_mask[1] = 0xFF;
 224                         ht_cap->mcs.rx_mask[4] = 0x01;
 225
 226                         ht_cap->mcs.rx_highest =
 227                                  cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 228                 } else if (get_rf_type(rtlphy) == RF_1T1R) {
 229                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
 230
 231                         ht_cap->mcs.rx_mask[0] = 0xFF;
 232                         ht_cap->mcs.rx_mask[1] = 0x00;
 233                         ht_cap->mcs.rx_mask[4] = 0x01;
 234
 235                         ht_cap->mcs.rx_highest =
 236                                  cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
 237                 }
 238         }
 239 }
 240
 241 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
 242                                    struct ieee80211_sta_vht_cap *vht_cap)
 243 {
 244         struct rtl_priv *rtlpriv = rtl_priv(hw);
 245         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 246
 247         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
 248                 u16 mcs_map;
 249
 250                 vht_cap->vht_supported = true;
 251                 vht_cap->cap =
 252                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
 253                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
 254                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 255                         IEEE80211_VHT_CAP_SHORT_GI_80 |
 256                         IEEE80211_VHT_CAP_TXSTBC |
 257                         IEEE80211_VHT_CAP_RXSTBC_1 |
 258                         IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 259                         IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 260                         IEEE80211_VHT_CAP_HTC_VHT |
 261                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 262                         IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 263                         IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 264                         0;
 265
 266                 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 267                         IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
 268                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 269                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 270                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 271                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 272                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 273                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 274
 275                 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 276                 vht_cap->vht_mcs.rx_highest =
 277                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 278                 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 279                 vht_cap->vht_mcs.tx_highest =
 280                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 281         } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
 282                 u16 mcs_map;
 283
 284                 vht_cap->vht_supported = true;
 285                 vht_cap->cap =
 286                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
 287                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
 288                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 289                         IEEE80211_VHT_CAP_SHORT_GI_80 |
 290                         IEEE80211_VHT_CAP_TXSTBC |
 291                         IEEE80211_VHT_CAP_RXSTBC_1 |
 292                         IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 293                         IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 294                         IEEE80211_VHT_CAP_HTC_VHT |
 295                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 296                         IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 297                         IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 298                         0;
 299
 300                 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 301                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
 302                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 303                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 304                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 305                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 306                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 307                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 308
 309                 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 310                 vht_cap->vht_mcs.rx_highest =
 311                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 312                 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 313                 vht_cap->vht_mcs.tx_highest =
 314                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 315         }
 316 }
 317
 318 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
 319 {
 320         struct rtl_priv *rtlpriv = rtl_priv(hw);
 321         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 322         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 323         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 324         struct ieee80211_supported_band *sband;
 325
 326         if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
 327             rtlhal->bandset == BAND_ON_BOTH) {
 328                 /* 1: 2.4 G bands */
 329                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 330                 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
 331
 332                 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
 333                  * to default value(1T1R) */
 334                 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz,
 335                                 sizeof(struct ieee80211_supported_band));
 336
 337                 /* <3> init ht cap base on ant_num */
 338                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 339
 340                 /* <4> set mac->sband to wiphy->sband */
 341                 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
 342
 343                 /* 2: 5 G bands */
 344                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 345                 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
 346
 347                 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
 348                  * to default value(1T1R) */
 349                 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz,
 350                                 sizeof(struct ieee80211_supported_band));
 351
 352                 /* <3> init ht cap base on ant_num */
 353                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 354
 355                 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 356                 /* <4> set mac->sband to wiphy->sband */
 357                 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
 358         } else {
 359                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 360                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 361                         sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
 362
 363                         /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
 364                          * to default value(1T1R) */
 365                         memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]),
 366                                &rtl_band_2ghz,
 367                                sizeof(struct ieee80211_supported_band));
 368
 369                         /* <3> init ht cap base on ant_num */
 370                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 371
 372                         /* <4> set mac->sband to wiphy->sband */
 373                         hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
 374                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 375                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 376                         sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
 377
 378                         /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
 379                          * to default value(1T1R) */
 380                         memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]),
 381                                &rtl_band_5ghz,
 382                                sizeof(struct ieee80211_supported_band));
 383
 384                         /* <3> init ht cap base on ant_num */
 385                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 386
 387                         _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 388                         /* <4> set mac->sband to wiphy->sband */
 389                         hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
 390                 } else {
 391                         pr_err("Err BAND %d\n",
 392                                rtlhal->current_bandtype);
 393                 }
 394         }
 395         /* <5> set hw caps */
 396         ieee80211_hw_set(hw, SIGNAL_DBM);
 397         ieee80211_hw_set(hw, RX_INCLUDES_FCS);
 398         ieee80211_hw_set(hw, AMPDU_AGGREGATION);
 399         ieee80211_hw_set(hw, CONNECTION_MONITOR);
 400         ieee80211_hw_set(hw, MFP_CAPABLE);
 401         ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
 402
 403         /* swlps or hwlps has been set in diff chip in init_sw_vars */
 404         if (rtlpriv->psc.swctrl_lps) {
 405                 ieee80211_hw_set(hw, SUPPORTS_PS);
 406                 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
 407         }
 408         hw->wiphy->interface_modes =
 409             BIT(NL80211_IFTYPE_AP) |
 410             BIT(NL80211_IFTYPE_STATION) |
 411             BIT(NL80211_IFTYPE_ADHOC) |
 412             BIT(NL80211_IFTYPE_MESH_POINT) |
 413             BIT(NL80211_IFTYPE_P2P_CLIENT) |
 414             BIT(NL80211_IFTYPE_P2P_GO);
 415         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 416
 417         hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 418
 419         hw->wiphy->rts_threshold = 2347;
 420
 421         hw->queues = AC_MAX;
 422         hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
 423
 424         /* TODO: Correct this value for our hw */
 425         /* TODO: define these hard code value */
 426         hw->max_listen_interval = 10;
 427         hw->max_rate_tries = 4;
 428         /* hw->max_rates = 1; */
 429         hw->sta_data_size = sizeof(struct rtl_sta_info);
 430
 431 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
 432 #ifdef CONFIG_PM
 433         if (rtlpriv->psc.wo_wlan_mode) {
 434                 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
 435                         rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
 436                 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
 437                         rtlpriv->wowlan.n_patterns =
 438                                 MAX_SUPPORT_WOL_PATTERN_NUM;
 439                         rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
 440                         rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
 441                 }
 442                 hw->wiphy->wowlan = &rtlpriv->wowlan;
 443         }
 444 #endif
 445
 446         /* <6> mac address */
 447         if (is_valid_ether_addr(rtlefuse->dev_addr)) {
 448                 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
 449         } else {
 450                 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
 451                 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
 452                 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
 453         }
 454 }
 455
 456 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
 457 {
 458         struct rtl_priv *rtlpriv = rtl_priv(hw);
 459
 460         /* <1> timer */
 461         setup_timer(&rtlpriv->works.watchdog_timer,
 462                     rtl_watch_dog_timer_callback, (unsigned long)hw);
 463         setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
 464                     rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
 465         /* <2> work queue */
 466         rtlpriv->works.hw = hw;
 467         rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
 468         INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
 469                           (void *)rtl_watchdog_wq_callback);
 470         INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
 471                           (void *)rtl_ips_nic_off_wq_callback);
 472         INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
 473                           (void *)rtl_swlps_wq_callback);
 474         INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
 475                           (void *)rtl_swlps_rfon_wq_callback);
 476         INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
 477                           (void *)rtl_fwevt_wq_callback);
 478         INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq,
 479                           (void *)rtl_c2hcmd_wq_callback);
 480
 481 }
 482
 483 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
 484 {
 485         struct rtl_priv *rtlpriv = rtl_priv(hw);
 486
 487         del_timer_sync(&rtlpriv->works.watchdog_timer);
 488
 489         cancel_delayed_work(&rtlpriv->works.watchdog_wq);
 490         cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
 491         cancel_delayed_work(&rtlpriv->works.ps_work);
 492         cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 493         cancel_delayed_work(&rtlpriv->works.fwevt_wq);
 494         cancel_delayed_work(&rtlpriv->works.c2hcmd_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                 pr_err("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.c2hcmd_lock);
 563         spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
 564         spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
 565         spin_lock_init(&rtlpriv->locks.fw_ps_lock);
 566         spin_lock_init(&rtlpriv->locks.lps_lock);
 567         spin_lock_init(&rtlpriv->locks.iqk_lock);
 568         /* <5> init list */
 569         INIT_LIST_HEAD(&rtlpriv->entry_list);
 570         INIT_LIST_HEAD(&rtlpriv->c2hcmd_list);
 571
 572         rtlmac->link_state = MAC80211_NOLINK;
 573
 574         /* <6> init deferred work */
 575         _rtl_init_deferred_work(hw);
 576
 577         return 0;
 578 }
 579 EXPORT_SYMBOL_GPL(rtl_init_core);
 580
 581 void rtl_deinit_core(struct ieee80211_hw *hw)
 582 {
 583         rtl_c2hcmd_launcher(hw, 0);
 584 }
 585 EXPORT_SYMBOL_GPL(rtl_deinit_core);
 586
 587 void rtl_init_rx_config(struct ieee80211_hw *hw)
 588 {
 589         struct rtl_priv *rtlpriv = rtl_priv(hw);
 590         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 591
 592         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
 593 }
 594 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
 595
 596 /*********************************************************
 597  *
 598  * tx information functions
 599  *
 600  *********************************************************/
 601 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
 602                                           struct rtl_tcb_desc *tcb_desc,
 603                                           struct ieee80211_tx_info *info)
 604 {
 605         struct rtl_priv *rtlpriv = rtl_priv(hw);
 606         u8 rate_flag = info->control.rates[0].flags;
 607
 608         tcb_desc->use_shortpreamble = false;
 609
 610         /* 1M can only use Long Preamble. 11B spec */
 611         if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
 612                 return;
 613         else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 614                 tcb_desc->use_shortpreamble = true;
 615
 616         return;
 617 }
 618
 619 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
 620                                struct ieee80211_sta *sta,
 621                                struct rtl_tcb_desc *tcb_desc,
 622                                struct ieee80211_tx_info *info)
 623 {
 624         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 625         u8 rate_flag = info->control.rates[0].flags;
 626         u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
 627         u8 sgi_80 = 0, bw_80 = 0;
 628         tcb_desc->use_shortgi = false;
 629
 630         if (sta == NULL)
 631                 return;
 632
 633         sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
 634         sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
 635         sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
 636
 637         if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
 638                 return;
 639
 640         if (!sgi_40 && !sgi_20)
 641                 return;
 642
 643         if (mac->opmode == NL80211_IFTYPE_STATION) {
 644                 bw_40 = mac->bw_40;
 645                 bw_80 = mac->bw_80;
 646         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 647                  mac->opmode == NL80211_IFTYPE_ADHOC ||
 648                  mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 649                 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 650                 bw_80 = sta->vht_cap.vht_supported;
 651         }
 652
 653         if (bw_80) {
 654                 if (sgi_80)
 655                         tcb_desc->use_shortgi = true;
 656                 else
 657                         tcb_desc->use_shortgi = false;
 658         } else {
 659                 if (bw_40 && sgi_40)
 660                         tcb_desc->use_shortgi = true;
 661                 else if (!bw_40 && sgi_20)
 662                         tcb_desc->use_shortgi = true;
 663         }
 664
 665         if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
 666                 tcb_desc->use_shortgi = false;
 667 }
 668
 669 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
 670                                        struct rtl_tcb_desc *tcb_desc,
 671                                        struct ieee80211_tx_info *info)
 672 {
 673         struct rtl_priv *rtlpriv = rtl_priv(hw);
 674         u8 rate_flag = info->control.rates[0].flags;
 675
 676         /* Common Settings */
 677         tcb_desc->rts_stbc = false;
 678         tcb_desc->cts_enable = false;
 679         tcb_desc->rts_sc = 0;
 680         tcb_desc->rts_bw = false;
 681         tcb_desc->rts_use_shortpreamble = false;
 682         tcb_desc->rts_use_shortgi = false;
 683
 684         if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 685                 /* Use CTS-to-SELF in protection mode. */
 686                 tcb_desc->rts_enable = true;
 687                 tcb_desc->cts_enable = true;
 688                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 689         } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
 690                 /* Use RTS-CTS in protection mode. */
 691                 tcb_desc->rts_enable = true;
 692                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 693         }
 694 }
 695
 696 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
 697                                    struct ieee80211_sta *sta,
 698                                    struct rtl_tcb_desc *tcb_desc)
 699 {
 700         struct rtl_priv *rtlpriv = rtl_priv(hw);
 701         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 702         struct rtl_sta_info *sta_entry = NULL;
 703         u8 ratr_index = 7;
 704
 705         if (sta) {
 706                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 707                 ratr_index = sta_entry->ratr_index;
 708         }
 709         if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
 710                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 711                         tcb_desc->ratr_index = 0;
 712                 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
 713                                 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 714                         if (tcb_desc->multicast || tcb_desc->broadcast) {
 715                                 tcb_desc->hw_rate =
 716                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
 717                                 tcb_desc->use_driver_rate = 1;
 718                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
 719                         } else {
 720                                 tcb_desc->ratr_index = ratr_index;
 721                         }
 722                 } else if (mac->opmode == NL80211_IFTYPE_AP) {
 723                         tcb_desc->ratr_index = ratr_index;
 724                 }
 725         }
 726
 727         if (rtlpriv->dm.useramask) {
 728                 tcb_desc->ratr_index = ratr_index;
 729                 /* TODO we will differentiate adhoc and station future  */
 730                 if (mac->opmode == NL80211_IFTYPE_STATION ||
 731                     mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 732                         tcb_desc->mac_id = 0;
 733
 734                         if (mac->mode == WIRELESS_MODE_AC_5G)
 735                                 tcb_desc->ratr_index =
 736                                         RATR_INX_WIRELESS_AC_5N;
 737                         else if (mac->mode == WIRELESS_MODE_AC_24G)
 738                                 tcb_desc->ratr_index =
 739                                         RATR_INX_WIRELESS_AC_24N;
 740                         else if (mac->mode == WIRELESS_MODE_N_24G)
 741                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
 742                         else if (mac->mode == WIRELESS_MODE_N_5G)
 743                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
 744                         else if (mac->mode & WIRELESS_MODE_G)
 745                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
 746                         else if (mac->mode & WIRELESS_MODE_B)
 747                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
 748                         else if (mac->mode & WIRELESS_MODE_A)
 749                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
 750
 751                 } else if (mac->opmode == NL80211_IFTYPE_AP ||
 752                         mac->opmode == NL80211_IFTYPE_ADHOC) {
 753                         if (NULL != sta) {
 754                                 if (sta->aid > 0)
 755                                         tcb_desc->mac_id = sta->aid + 1;
 756                                 else
 757                                         tcb_desc->mac_id = 1;
 758                         } else {
 759                                 tcb_desc->mac_id = 0;
 760                         }
 761                 }
 762         }
 763 }
 764
 765 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
 766                                       struct ieee80211_sta *sta,
 767                                       struct rtl_tcb_desc *tcb_desc)
 768 {
 769         struct rtl_priv *rtlpriv = rtl_priv(hw);
 770         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 771
 772         tcb_desc->packet_bw = false;
 773         if (!sta)
 774                 return;
 775         if (mac->opmode == NL80211_IFTYPE_AP ||
 776             mac->opmode == NL80211_IFTYPE_ADHOC ||
 777             mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 778                 if (!(sta->ht_cap.ht_supported) ||
 779                     !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
 780                         return;
 781         } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 782                 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
 783                         return;
 784         }
 785         if (tcb_desc->multicast || tcb_desc->broadcast)
 786                 return;
 787
 788         /*use legency rate, shall use 20MHz */
 789         if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
 790                 return;
 791
 792         tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
 793
 794         if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
 795             rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) {
 796                 if (mac->opmode == NL80211_IFTYPE_AP ||
 797                     mac->opmode == NL80211_IFTYPE_ADHOC ||
 798                     mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 799                         if (!(sta->vht_cap.vht_supported))
 800                                 return;
 801                 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 802                         if (!mac->bw_80 ||
 803                             !(sta->vht_cap.vht_supported))
 804                                 return;
 805                 }
 806                 if (tcb_desc->hw_rate <=
 807                         rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
 808                         return;
 809                 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
 810         }
 811 }
 812
 813 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
 814                                       struct ieee80211_sta *sta)
 815 {
 816         struct rtl_priv *rtlpriv = rtl_priv(hw);
 817         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 818         u8 hw_rate;
 819         u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
 820
 821         if ((get_rf_type(rtlphy) == RF_2T2R) &&
 822             (tx_mcs_map & 0x000c) != 0x000c) {
 823                 if ((tx_mcs_map & 0x000c) >> 2 ==
 824                         IEEE80211_VHT_MCS_SUPPORT_0_7)
 825                         hw_rate =
 826                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
 827                 else if ((tx_mcs_map  & 0x000c) >> 2 ==
 828                         IEEE80211_VHT_MCS_SUPPORT_0_8)
 829                         hw_rate =
 830                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
 831                 else
 832                         hw_rate =
 833                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
 834         } else {
 835                 if ((tx_mcs_map  & 0x0003) ==
 836                         IEEE80211_VHT_MCS_SUPPORT_0_7)
 837                         hw_rate =
 838                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
 839                 else if ((tx_mcs_map  & 0x0003) ==
 840                         IEEE80211_VHT_MCS_SUPPORT_0_8)
 841                         hw_rate =
 842                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
 843                 else
 844                         hw_rate =
 845                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
 846         }
 847
 848         return hw_rate;
 849 }
 850
 851 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
 852                                   struct ieee80211_sta *sta)
 853 {
 854         struct rtl_priv *rtlpriv = rtl_priv(hw);
 855         struct rtl_phy *rtlphy = &rtlpriv->phy;
 856         u8 hw_rate;
 857
 858         if ((get_rf_type(rtlphy) == RF_2T2R) &&
 859             (sta->ht_cap.mcs.rx_mask[1] != 0))
 860                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
 861         else
 862                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
 863
 864         return hw_rate;
 865 }
 866
 867 /* mac80211's rate_idx is like this:
 868  *
 869  * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
 870  *
 871  * B/G rate:
 872  * (rx_status->flag & RX_FLAG_HT) = 0,
 873  * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
 874  *
 875  * N rate:
 876  * (rx_status->flag & RX_FLAG_HT) = 1,
 877  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 878  *
 879  * 5G band:rx_status->band == NL80211_BAND_5GHZ
 880  * A rate:
 881  * (rx_status->flag & RX_FLAG_HT) = 0,
 882  * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
 883  *
 884  * N rate:
 885  * (rx_status->flag & RX_FLAG_HT) = 1,
 886  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 887  *
 888  * VHT rates:
 889  * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
 890  * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
 891  */
 892 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
 893                          u8 desc_rate)
 894 {
 895         int rate_idx;
 896
 897         if (isvht) {
 898                 switch (desc_rate) {
 899                 case DESC_RATEVHT1SS_MCS0:
 900                         rate_idx = 0;
 901                         break;
 902                 case DESC_RATEVHT1SS_MCS1:
 903                         rate_idx = 1;
 904                         break;
 905                 case DESC_RATEVHT1SS_MCS2:
 906                         rate_idx = 2;
 907                         break;
 908                 case DESC_RATEVHT1SS_MCS3:
 909                         rate_idx = 3;
 910                         break;
 911                 case DESC_RATEVHT1SS_MCS4:
 912                         rate_idx = 4;
 913                         break;
 914                 case DESC_RATEVHT1SS_MCS5:
 915                         rate_idx = 5;
 916                         break;
 917                 case DESC_RATEVHT1SS_MCS6:
 918                         rate_idx = 6;
 919                         break;
 920                 case DESC_RATEVHT1SS_MCS7:
 921                         rate_idx = 7;
 922                         break;
 923                 case DESC_RATEVHT1SS_MCS8:
 924                         rate_idx = 8;
 925                         break;
 926                 case DESC_RATEVHT1SS_MCS9:
 927                         rate_idx = 9;
 928                         break;
 929                 case DESC_RATEVHT2SS_MCS0:
 930                         rate_idx = 0;
 931                         break;
 932                 case DESC_RATEVHT2SS_MCS1:
 933                         rate_idx = 1;
 934                         break;
 935                 case DESC_RATEVHT2SS_MCS2:
 936                         rate_idx = 2;
 937                         break;
 938                 case DESC_RATEVHT2SS_MCS3:
 939                         rate_idx = 3;
 940                         break;
 941                 case DESC_RATEVHT2SS_MCS4:
 942                         rate_idx = 4;
 943                         break;
 944                 case DESC_RATEVHT2SS_MCS5:
 945                         rate_idx = 5;
 946                         break;
 947                 case DESC_RATEVHT2SS_MCS6:
 948                         rate_idx = 6;
 949                         break;
 950                 case DESC_RATEVHT2SS_MCS7:
 951                         rate_idx = 7;
 952                         break;
 953                 case DESC_RATEVHT2SS_MCS8:
 954                         rate_idx = 8;
 955                         break;
 956                 case DESC_RATEVHT2SS_MCS9:
 957                         rate_idx = 9;
 958                         break;
 959                 default:
 960                         rate_idx = 0;
 961                         break;
 962                 }
 963                 return rate_idx;
 964         }
 965         if (false == isht) {
 966                 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
 967                         switch (desc_rate) {
 968                         case DESC_RATE1M:
 969                                 rate_idx = 0;
 970                                 break;
 971                         case DESC_RATE2M:
 972                                 rate_idx = 1;
 973                                 break;
 974                         case DESC_RATE5_5M:
 975                                 rate_idx = 2;
 976                                 break;
 977                         case DESC_RATE11M:
 978                                 rate_idx = 3;
 979                                 break;
 980                         case DESC_RATE6M:
 981                                 rate_idx = 4;
 982                                 break;
 983                         case DESC_RATE9M:
 984                                 rate_idx = 5;
 985                                 break;
 986                         case DESC_RATE12M:
 987                                 rate_idx = 6;
 988                                 break;
 989                         case DESC_RATE18M:
 990                                 rate_idx = 7;
 991                                 break;
 992                         case DESC_RATE24M:
 993                                 rate_idx = 8;
 994                                 break;
 995                         case DESC_RATE36M:
 996                                 rate_idx = 9;
 997                                 break;
 998                         case DESC_RATE48M:
 999                                 rate_idx = 10;
1000                                 break;
1001                         case DESC_RATE54M:
1002                                 rate_idx = 11;
1003                                 break;
1004                         default:
1005                                 rate_idx = 0;
1006                                 break;
1007                         }
1008                 } else {
1009                         switch (desc_rate) {
1010                         case DESC_RATE6M:
1011                                 rate_idx = 0;
1012                                 break;
1013                         case DESC_RATE9M:
1014                                 rate_idx = 1;
1015                                 break;
1016                         case DESC_RATE12M:
1017                                 rate_idx = 2;
1018                                 break;
1019                         case DESC_RATE18M:
1020                                 rate_idx = 3;
1021                                 break;
1022                         case DESC_RATE24M:
1023                                 rate_idx = 4;
1024                                 break;
1025                         case DESC_RATE36M:
1026                                 rate_idx = 5;
1027                                 break;
1028                         case DESC_RATE48M:
1029                                 rate_idx = 6;
1030                                 break;
1031                         case DESC_RATE54M:
1032                                 rate_idx = 7;
1033                                 break;
1034                         default:
1035                                 rate_idx = 0;
1036                                 break;
1037                         }
1038                 }
1039         } else {
1040                 switch (desc_rate) {
1041                 case DESC_RATEMCS0:
1042                         rate_idx = 0;
1043                         break;
1044                 case DESC_RATEMCS1:
1045                         rate_idx = 1;
1046                         break;
1047                 case DESC_RATEMCS2:
1048                         rate_idx = 2;
1049                         break;
1050                 case DESC_RATEMCS3:
1051                         rate_idx = 3;
1052                         break;
1053                 case DESC_RATEMCS4:
1054                         rate_idx = 4;
1055                         break;
1056                 case DESC_RATEMCS5:
1057                         rate_idx = 5;
1058                         break;
1059                 case DESC_RATEMCS6:
1060                         rate_idx = 6;
1061                         break;
1062                 case DESC_RATEMCS7:
1063                         rate_idx = 7;
1064                         break;
1065                 case DESC_RATEMCS8:
1066                         rate_idx = 8;
1067                         break;
1068                 case DESC_RATEMCS9:
1069                         rate_idx = 9;
1070                         break;
1071                 case DESC_RATEMCS10:
1072                         rate_idx = 10;
1073                         break;
1074                 case DESC_RATEMCS11:
1075                         rate_idx = 11;
1076                         break;
1077                 case DESC_RATEMCS12:
1078                         rate_idx = 12;
1079                         break;
1080                 case DESC_RATEMCS13:
1081                         rate_idx = 13;
1082                         break;
1083                 case DESC_RATEMCS14:
1084                         rate_idx = 14;
1085                         break;
1086                 case DESC_RATEMCS15:
1087                         rate_idx = 15;
1088                         break;
1089                 default:
1090                         rate_idx = 0;
1091                         break;
1092                 }
1093         }
1094         return rate_idx;
1095 }
1096 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1097
1098 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1099                       struct ieee80211_tx_info *info,
1100                       struct ieee80211_sta *sta,
1101                       struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1102 {
1103         struct rtl_priv *rtlpriv = rtl_priv(hw);
1104         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1105         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1106         struct ieee80211_rate *txrate;
1107         __le16 fc = rtl_get_fc(skb);
1108
1109         txrate = ieee80211_get_tx_rate(hw, info);
1110         if (txrate)
1111                 tcb_desc->hw_rate = txrate->hw_value;
1112
1113         if (ieee80211_is_data(fc)) {
1114                 /*
1115                  *we set data rate INX 0
1116                  *in rtl_rc.c   if skb is special data or
1117                  *mgt which need low data rate.
1118                  */
1119
1120                 /*
1121                  *So tcb_desc->hw_rate is just used for
1122                  *special data and mgt frames
1123                  */
1124                 if (info->control.rates[0].idx == 0 ||
1125                                 ieee80211_is_nullfunc(fc)) {
1126                         tcb_desc->use_driver_rate = true;
1127                         tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1128
1129                         tcb_desc->disable_ratefallback = 1;
1130                 } else {
1131                         /*
1132                          *because hw will nerver use hw_rate
1133                          *when tcb_desc->use_driver_rate = false
1134                          *so we never set highest N rate here,
1135                          *and N rate will all be controlled by FW
1136                          *when tcb_desc->use_driver_rate = false
1137                          */
1138                         if (sta && sta->vht_cap.vht_supported) {
1139                                 tcb_desc->hw_rate =
1140                                 _rtl_get_vht_highest_n_rate(hw, sta);
1141                         } else {
1142                                 if (sta && (sta->ht_cap.ht_supported)) {
1143                                         tcb_desc->hw_rate =
1144                                                 _rtl_get_highest_n_rate(hw, sta);
1145                                 } else {
1146                                         if (rtlmac->mode == WIRELESS_MODE_B) {
1147                                                 tcb_desc->hw_rate =
1148                                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1149                                         } else {
1150                                                 tcb_desc->hw_rate =
1151                                                     rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1152                                         }
1153                                 }
1154                         }
1155                 }
1156
1157                 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
1158                         tcb_desc->multicast = 1;
1159                 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
1160                         tcb_desc->broadcast = 1;
1161
1162                 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1163                 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1164                 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1165                 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1166                 _rtl_query_protection_mode(hw, tcb_desc, info);
1167         } else {
1168                 tcb_desc->use_driver_rate = true;
1169                 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1170                 tcb_desc->disable_ratefallback = 1;
1171                 tcb_desc->mac_id = 0;
1172                 tcb_desc->packet_bw = false;
1173         }
1174 }
1175 EXPORT_SYMBOL(rtl_get_tcb_desc);
1176
1177 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1178 {
1179         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1180         struct rtl_priv *rtlpriv = rtl_priv(hw);
1181         __le16 fc = rtl_get_fc(skb);
1182
1183         if (rtlpriv->dm.supp_phymode_switch &&
1184             mac->link_state < MAC80211_LINKED &&
1185             (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1186                 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1187                         rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1188         }
1189         if (ieee80211_is_auth(fc)) {
1190                 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1191                 rtl_ips_nic_on(hw);
1192
1193                 mac->link_state = MAC80211_LINKING;
1194                 /* Dul mac */
1195                 rtlpriv->phy.need_iqk = true;
1196
1197         }
1198
1199         return true;
1200 }
1201 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1202
1203 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1204                                 u8 *bssid, u16 tid);
1205
1206 static void process_agg_start(struct ieee80211_hw *hw,
1207                               struct ieee80211_hdr *hdr, u16 tid)
1208 {
1209         struct rtl_priv *rtlpriv = rtl_priv(hw);
1210         struct ieee80211_rx_status rx_status = { 0 };
1211         struct sk_buff *skb_delba = NULL;
1212
1213         skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1214         if (skb_delba) {
1215                 rx_status.freq = hw->conf.chandef.chan->center_freq;
1216                 rx_status.band = hw->conf.chandef.chan->band;
1217                 rx_status.flag |= RX_FLAG_DECRYPTED;
1218                 rx_status.flag |= RX_FLAG_MACTIME_START;
1219                 rx_status.rate_idx = 0;
1220                 rx_status.signal = 50 + 10;
1221                 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1222                        &rx_status, sizeof(rx_status));
1223                 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1224                               "fake del\n",
1225                               skb_delba->data,
1226                               skb_delba->len);
1227                 ieee80211_rx_irqsafe(hw, skb_delba);
1228         }
1229 }
1230
1231 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1232 {
1233         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1234         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1235         struct rtl_priv *rtlpriv = rtl_priv(hw);
1236         __le16 fc = rtl_get_fc(skb);
1237         u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1238         u8 category;
1239
1240         if (!ieee80211_is_action(fc))
1241                 return true;
1242
1243         category = *act;
1244         act++;
1245         switch (category) {
1246         case ACT_CAT_BA:
1247                 switch (*act) {
1248                 case ACT_ADDBAREQ:
1249                         if (mac->act_scanning)
1250                                 return false;
1251
1252                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1253                                 "%s ACT_ADDBAREQ From :%pM\n",
1254                                 is_tx ? "Tx" : "Rx", hdr->addr2);
1255                         RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1256                                 skb->data, skb->len);
1257                         if (!is_tx) {
1258                                 struct ieee80211_sta *sta = NULL;
1259                                 struct rtl_sta_info *sta_entry = NULL;
1260                                 struct rtl_tid_data *tid_data;
1261                                 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1262                                 u16 capab = 0, tid = 0;
1263
1264                                 rcu_read_lock();
1265                                 sta = rtl_find_sta(hw, hdr->addr3);
1266                                 if (sta == NULL) {
1267                                         RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1268                                                  DBG_DMESG, "sta is NULL\n");
1269                                         rcu_read_unlock();
1270                                         return true;
1271                                 }
1272
1273                                 sta_entry =
1274                                         (struct rtl_sta_info *)sta->drv_priv;
1275                                 if (!sta_entry) {
1276                                         rcu_read_unlock();
1277                                         return true;
1278                                 }
1279                                 capab =
1280                                   le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1281                                 tid = (capab &
1282                                        IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1283                                 tid_data = &sta_entry->tids[tid];
1284                                 if (tid_data->agg.rx_agg_state ==
1285                                     RTL_RX_AGG_START)
1286                                         process_agg_start(hw, hdr, tid);
1287                                 rcu_read_unlock();
1288                         }
1289                         break;
1290                 case ACT_ADDBARSP:
1291                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1292                                  "%s ACT_ADDBARSP From :%pM\n",
1293                                   is_tx ? "Tx" : "Rx", hdr->addr2);
1294                         break;
1295                 case ACT_DELBA:
1296                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1297                                  "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1298                         break;
1299                 }
1300                 break;
1301         default:
1302                 break;
1303         }
1304
1305         return true;
1306 }
1307 EXPORT_SYMBOL_GPL(rtl_action_proc);
1308
1309 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc)
1310 {
1311         struct ieee80211_hw *hw = rtlpriv->hw;
1312
1313         rtlpriv->ra.is_special_data = true;
1314         if (rtlpriv->cfg->ops->get_btc_status())
1315                 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1316                                         rtlpriv, 1);
1317         rtl_lps_leave(hw);
1318         ppsc->last_delaylps_stamp_jiffies = jiffies;
1319 }
1320
1321 /*should call before software enc*/
1322 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1323                        bool is_enc)
1324 {
1325         struct rtl_priv *rtlpriv = rtl_priv(hw);
1326         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1327         __le16 fc = rtl_get_fc(skb);
1328         u16 ether_type;
1329         u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1330         u8 encrypt_header_len = 0;
1331         u8 offset;
1332         const struct iphdr *ip;
1333
1334         if (!ieee80211_is_data(fc))
1335                 goto end;
1336
1337         switch (rtlpriv->sec.pairwise_enc_algorithm) {
1338         case WEP40_ENCRYPTION:
1339         case WEP104_ENCRYPTION:
1340                 encrypt_header_len = 4;/*WEP_IV_LEN*/
1341                 break;
1342         case TKIP_ENCRYPTION:
1343                 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1344                 break;
1345         case AESCCMP_ENCRYPTION:
1346                 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1347                 break;
1348         default:
1349                 break;
1350         }
1351
1352         offset = mac_hdr_len + SNAP_SIZE;
1353         if (is_enc)
1354                 offset += encrypt_header_len;
1355         ether_type = be16_to_cpup((__be16 *)(skb->data + offset));
1356
1357         if (ETH_P_IP == ether_type) {
1358                 ip = (struct iphdr *)((u8 *)skb->data + offset +
1359                      PROTOC_TYPE_SIZE);
1360                 if (IPPROTO_UDP == ip->protocol) {
1361                         struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1362                                                                (ip->ihl << 2));
1363                         if (((((u8 *)udp)[1] == 68) &&
1364                              (((u8 *)udp)[3] == 67)) ||
1365                             ((((u8 *)udp)[1] == 67) &&
1366                              (((u8 *)udp)[3] == 68))) {
1367                                 /* 68 : UDP BOOTP client
1368                                  * 67 : UDP BOOTP server
1369                                  */
1370                                 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1371                                          DBG_DMESG, "dhcp %s !!\n",
1372                                          (is_tx) ? "Tx" : "Rx");
1373
1374                                 if (is_tx)
1375                                         setup_arp_tx(rtlpriv, ppsc);
1376                                 return true;
1377                         }
1378                 }
1379         } else if (ETH_P_ARP == ether_type) {
1380                 if (is_tx)
1381                         setup_arp_tx(rtlpriv, ppsc);
1382
1383                 return true;
1384         } else if (ETH_P_PAE == ether_type) {
1385                 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1386                          "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1387
1388                 if (is_tx) {
1389                         rtlpriv->ra.is_special_data = true;
1390                         rtl_lps_leave(hw);
1391                         ppsc->last_delaylps_stamp_jiffies = jiffies;
1392                 }
1393
1394                 return true;
1395         } else if (ETH_P_IPV6 == ether_type) {
1396                 /* TODO: Handle any IPv6 cases that need special handling.
1397                  * For now, always return false
1398                  */
1399                 goto end;
1400         }
1401
1402 end:
1403         rtlpriv->ra.is_special_data = false;
1404         return false;
1405 }
1406 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1407
1408 /*********************************************************
1409  *
1410  * functions called by core.c
1411  *
1412  *********************************************************/
1413 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1414                      struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1415 {
1416         struct rtl_priv *rtlpriv = rtl_priv(hw);
1417         struct rtl_tid_data *tid_data;
1418         struct rtl_sta_info *sta_entry = NULL;
1419
1420         if (sta == NULL)
1421                 return -EINVAL;
1422
1423         if (unlikely(tid >= MAX_TID_COUNT))
1424                 return -EINVAL;
1425
1426         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1427         if (!sta_entry)
1428                 return -ENXIO;
1429         tid_data = &sta_entry->tids[tid];
1430
1431         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1432                  "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1433                  tid_data->seq_number);
1434
1435         *ssn = tid_data->seq_number;
1436         tid_data->agg.agg_state = RTL_AGG_START;
1437
1438         ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1439         return 0;
1440 }
1441
1442 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1443                     struct ieee80211_sta *sta, u16 tid)
1444 {
1445         struct rtl_priv *rtlpriv = rtl_priv(hw);
1446         struct rtl_tid_data *tid_data;
1447         struct rtl_sta_info *sta_entry = NULL;
1448
1449         if (sta == NULL)
1450                 return -EINVAL;
1451
1452         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1453                  "on ra = %pM tid = %d\n", sta->addr, tid);
1454
1455         if (unlikely(tid >= MAX_TID_COUNT))
1456                 return -EINVAL;
1457
1458         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1459         tid_data = &sta_entry->tids[tid];
1460         sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1461
1462         ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1463         return 0;
1464 }
1465
1466 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1467                      struct ieee80211_sta *sta, u16 tid)
1468 {
1469         struct rtl_priv *rtlpriv = rtl_priv(hw);
1470         struct rtl_tid_data *tid_data;
1471         struct rtl_sta_info *sta_entry = NULL;
1472
1473         if (sta == NULL)
1474                 return -EINVAL;
1475
1476         if (unlikely(tid >= MAX_TID_COUNT))
1477                 return -EINVAL;
1478
1479         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1480         if (!sta_entry)
1481                 return -ENXIO;
1482         tid_data = &sta_entry->tids[tid];
1483
1484         RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1485                  "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1486                  tid_data->seq_number);
1487
1488         tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1489         return 0;
1490 }
1491
1492 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1493                     struct ieee80211_sta *sta, u16 tid)
1494 {
1495         struct rtl_priv *rtlpriv = rtl_priv(hw);
1496         struct rtl_sta_info *sta_entry = NULL;
1497
1498         if (sta == NULL)
1499                 return -EINVAL;
1500
1501         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1502                  "on ra = %pM tid = %d\n", sta->addr, tid);
1503
1504         if (unlikely(tid >= MAX_TID_COUNT))
1505                 return -EINVAL;
1506
1507         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1508         sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1509
1510         return 0;
1511 }
1512 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1513                 struct ieee80211_sta *sta, u16 tid)
1514 {
1515         struct rtl_priv *rtlpriv = rtl_priv(hw);
1516         struct rtl_sta_info *sta_entry = NULL;
1517
1518         if (sta == NULL)
1519                 return -EINVAL;
1520
1521         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1522                  "on ra = %pM tid = %d\n", sta->addr, tid);
1523
1524         if (unlikely(tid >= MAX_TID_COUNT))
1525                 return -EINVAL;
1526
1527         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1528         sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1529
1530         return 0;
1531 }
1532
1533 /*********************************************************
1534  *
1535  * wq & timer callback functions
1536  *
1537  *********************************************************/
1538 /* this function is used for roaming */
1539 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1540 {
1541         struct rtl_priv *rtlpriv = rtl_priv(hw);
1542         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1543
1544         if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1545                 return;
1546
1547         if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1548                 return;
1549
1550         /* check if this really is a beacon */
1551         if (!ieee80211_is_beacon(hdr->frame_control) &&
1552             !ieee80211_is_probe_resp(hdr->frame_control))
1553                 return;
1554
1555         /* min. beacon length + FCS_LEN */
1556         if (skb->len <= 40 + FCS_LEN)
1557                 return;
1558
1559         /* and only beacons from the associated BSSID, please */
1560         if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1561                 return;
1562
1563         rtlpriv->link_info.bcn_rx_inperiod++;
1564 }
1565 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1566
1567 void rtl_watchdog_wq_callback(void *data)
1568 {
1569         struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1570                                                             struct rtl_works,
1571                                                             watchdog_wq);
1572         struct ieee80211_hw *hw = rtlworks->hw;
1573         struct rtl_priv *rtlpriv = rtl_priv(hw);
1574         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1575         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1576         bool busytraffic = false;
1577         bool tx_busy_traffic = false;
1578         bool rx_busy_traffic = false;
1579         bool higher_busytraffic = false;
1580         bool higher_busyrxtraffic = false;
1581         u8 idx, tid;
1582         u32 rx_cnt_inp4eriod = 0;
1583         u32 tx_cnt_inp4eriod = 0;
1584         u32 aver_rx_cnt_inperiod = 0;
1585         u32 aver_tx_cnt_inperiod = 0;
1586         u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1587         u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1588
1589         if (is_hal_stop(rtlhal))
1590                 return;
1591
1592         /* <1> Determine if action frame is allowed */
1593         if (mac->link_state > MAC80211_NOLINK) {
1594                 if (mac->cnt_after_linked < 20)
1595                         mac->cnt_after_linked++;
1596         } else {
1597                 mac->cnt_after_linked = 0;
1598         }
1599
1600         /* <2> to check if traffic busy, if
1601          * busytraffic we don't change channel
1602          */
1603         if (mac->link_state >= MAC80211_LINKED) {
1604
1605                 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1606                 for (idx = 0; idx <= 2; idx++) {
1607                         rtlpriv->link_info.num_rx_in4period[idx] =
1608                             rtlpriv->link_info.num_rx_in4period[idx + 1];
1609                         rtlpriv->link_info.num_tx_in4period[idx] =
1610                             rtlpriv->link_info.num_tx_in4period[idx + 1];
1611                 }
1612                 rtlpriv->link_info.num_rx_in4period[3] =
1613                     rtlpriv->link_info.num_rx_inperiod;
1614                 rtlpriv->link_info.num_tx_in4period[3] =
1615                     rtlpriv->link_info.num_tx_inperiod;
1616                 for (idx = 0; idx <= 3; idx++) {
1617                         rx_cnt_inp4eriod +=
1618                             rtlpriv->link_info.num_rx_in4period[idx];
1619                         tx_cnt_inp4eriod +=
1620                             rtlpriv->link_info.num_tx_in4period[idx];
1621                 }
1622                 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1623                 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1624
1625                 /* (2) check traffic busy */
1626                 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1627                         busytraffic = true;
1628                         if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1629                                 rx_busy_traffic = true;
1630                         else
1631                                 tx_busy_traffic = false;
1632                 }
1633
1634                 /* Higher Tx/Rx data. */
1635                 if (aver_rx_cnt_inperiod > 4000 ||
1636                     aver_tx_cnt_inperiod > 4000) {
1637                         higher_busytraffic = true;
1638
1639                         /* Extremely high Rx data. */
1640                         if (aver_rx_cnt_inperiod > 5000)
1641                                 higher_busyrxtraffic = true;
1642                 }
1643
1644                 /* check every tid's tx traffic */
1645                 for (tid = 0; tid <= 7; tid++) {
1646                         for (idx = 0; idx <= 2; idx++)
1647                                 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1648                                         rtlpriv->link_info.tidtx_in4period[tid]
1649                                         [idx + 1];
1650                         rtlpriv->link_info.tidtx_in4period[tid][3] =
1651                                 rtlpriv->link_info.tidtx_inperiod[tid];
1652
1653                         for (idx = 0; idx <= 3; idx++)
1654                                 tidtx_inp4eriod[tid] +=
1655                                    rtlpriv->link_info.tidtx_in4period[tid][idx];
1656                         aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1657                         if (aver_tidtx_inperiod[tid] > 5000)
1658                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1659                                                                         true;
1660                         else
1661                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1662                                                                         false;
1663                 }
1664
1665                 if (((rtlpriv->link_info.num_rx_inperiod +
1666                       rtlpriv->link_info.num_tx_inperiod) > 8) ||
1667                     (rtlpriv->link_info.num_rx_inperiod > 2))
1668                         rtl_lps_leave(hw);
1669                 else
1670                         rtl_lps_enter(hw);
1671         }
1672
1673         rtlpriv->link_info.num_rx_inperiod = 0;
1674         rtlpriv->link_info.num_tx_inperiod = 0;
1675         for (tid = 0; tid <= 7; tid++)
1676                 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1677
1678         rtlpriv->link_info.busytraffic = busytraffic;
1679         rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1680         rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1681         rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1682         rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1683
1684         /* <3> DM */
1685         if (!rtlpriv->cfg->mod_params->disable_watchdog)
1686                 rtlpriv->cfg->ops->dm_watchdog(hw);
1687
1688         /* <4> roaming */
1689         if (mac->link_state == MAC80211_LINKED &&
1690             mac->opmode == NL80211_IFTYPE_STATION) {
1691                 if ((rtlpriv->link_info.bcn_rx_inperiod +
1692                     rtlpriv->link_info.num_rx_inperiod) == 0) {
1693                         rtlpriv->link_info.roam_times++;
1694                         RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1695                                  "AP off for %d s\n",
1696                                 (rtlpriv->link_info.roam_times * 2));
1697
1698                         /* if we can't recv beacon for 10s,
1699                          * we should reconnect this AP
1700                          */
1701                         if (rtlpriv->link_info.roam_times >= 5) {
1702                                 pr_err("AP off, try to reconnect now\n");
1703                                 rtlpriv->link_info.roam_times = 0;
1704                                 ieee80211_connection_loss(
1705                                         rtlpriv->mac80211.vif);
1706                         }
1707                 } else {
1708                         rtlpriv->link_info.roam_times = 0;
1709                 }
1710         }
1711
1712         if (rtlpriv->cfg->ops->get_btc_status())
1713                 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
1714
1715         rtlpriv->link_info.bcn_rx_inperiod = 0;
1716 }
1717
1718 void rtl_watch_dog_timer_callback(unsigned long data)
1719 {
1720         struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1721         struct rtl_priv *rtlpriv = rtl_priv(hw);
1722
1723         queue_delayed_work(rtlpriv->works.rtl_wq,
1724                            &rtlpriv->works.watchdog_wq, 0);
1725
1726         mod_timer(&rtlpriv->works.watchdog_timer,
1727                   jiffies + MSECS(RTL_WATCH_DOG_TIME));
1728 }
1729 void rtl_fwevt_wq_callback(void *data)
1730 {
1731         struct rtl_works *rtlworks =
1732                 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1733         struct ieee80211_hw *hw = rtlworks->hw;
1734         struct rtl_priv *rtlpriv = rtl_priv(hw);
1735
1736         rtlpriv->cfg->ops->c2h_command_handle(hw);
1737 }
1738
1739 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val)
1740 {
1741         struct rtl_priv *rtlpriv = rtl_priv(hw);
1742         unsigned long flags;
1743         struct rtl_c2hcmd *c2hcmd;
1744
1745         c2hcmd = kmalloc(sizeof(*c2hcmd),
1746                          in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
1747
1748         if (!c2hcmd)
1749                 goto label_err;
1750
1751         c2hcmd->val = kmalloc(len,
1752                               in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
1753
1754         if (!c2hcmd->val)
1755                 goto label_err2;
1756
1757         /* fill data */
1758         c2hcmd->tag = tag;
1759         c2hcmd->len = len;
1760         memcpy(c2hcmd->val, val, len);
1761
1762         /* enqueue */
1763         spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
1764
1765         list_add_tail(&c2hcmd->list, &rtlpriv->c2hcmd_list);
1766
1767         spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
1768
1769         /* wake up wq */
1770         queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
1771
1772         return;
1773
1774 label_err2:
1775         kfree(c2hcmd);
1776
1777 label_err:
1778         RT_TRACE(rtlpriv, COMP_CMD, DBG_WARNING,
1779                  "C2H cmd enqueue fail.\n");
1780 }
1781 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
1782
1783 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
1784 {
1785         struct rtl_priv *rtlpriv = rtl_priv(hw);
1786         unsigned long flags;
1787         struct rtl_c2hcmd *c2hcmd;
1788         int i;
1789
1790         for (i = 0; i < 200; i++) {
1791                 /* dequeue a task */
1792                 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
1793
1794                 c2hcmd = list_first_entry_or_null(&rtlpriv->c2hcmd_list,
1795                                                   struct rtl_c2hcmd, list);
1796
1797                 if (c2hcmd)
1798                         list_del(&c2hcmd->list);
1799
1800                 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
1801
1802                 /* do it */
1803                 if (!c2hcmd)
1804                         break;
1805
1806                 if (rtlpriv->cfg->ops->c2h_content_parsing && exec)
1807                         rtlpriv->cfg->ops->c2h_content_parsing(hw,
1808                                         c2hcmd->tag, c2hcmd->len, c2hcmd->val);
1809
1810                 /* free */
1811                 kfree(c2hcmd->val);
1812
1813                 kfree(c2hcmd);
1814         }
1815 }
1816
1817 void rtl_c2hcmd_wq_callback(void *data)
1818 {
1819         struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1820                                                             struct rtl_works,
1821                                                             c2hcmd_wq);
1822         struct ieee80211_hw *hw = rtlworks->hw;
1823
1824         rtl_c2hcmd_launcher(hw, 1);
1825 }
1826
1827 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1828 {
1829         struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1830         struct rtl_priv *rtlpriv = rtl_priv(hw);
1831         struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1832
1833         if (buddy_priv == NULL)
1834                 return;
1835
1836         rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1837 }
1838 /*********************************************************
1839  *
1840  * frame process functions
1841  *
1842  *********************************************************/
1843 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1844 {
1845         struct ieee80211_mgmt *mgmt = (void *)data;
1846         u8 *pos, *end;
1847
1848         pos = (u8 *)mgmt->u.beacon.variable;
1849         end = data + len;
1850         while (pos < end) {
1851                 if (pos + 2 + pos[1] > end)
1852                         return NULL;
1853
1854                 if (pos[0] == ie)
1855                         return pos;
1856
1857                 pos += 2 + pos[1];
1858         }
1859         return NULL;
1860 }
1861
1862 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1863 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1864 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1865                                      enum ieee80211_smps_mode smps,
1866                                      u8 *da, u8 *bssid)
1867 {
1868         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1869         struct sk_buff *skb;
1870         struct ieee80211_mgmt *action_frame;
1871
1872         /* 27 = header + category + action + smps mode */
1873         skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1874         if (!skb)
1875                 return NULL;
1876
1877         skb_reserve(skb, hw->extra_tx_headroom);
1878         action_frame = (void *)skb_put(skb, 27);
1879         memset(action_frame, 0, 27);
1880         memcpy(action_frame->da, da, ETH_ALEN);
1881         memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1882         memcpy(action_frame->bssid, bssid, ETH_ALEN);
1883         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1884                                                   IEEE80211_STYPE_ACTION);
1885         action_frame->u.action.category = WLAN_CATEGORY_HT;
1886         action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1887         switch (smps) {
1888         case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1889         case IEEE80211_SMPS_NUM_MODES:/* 4 */
1890                 WARN_ON(1);
1891         /* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
1892          * According to Kernel Code, here is right.
1893          */
1894         case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1895                 action_frame->u.action.u.ht_smps.smps_control =
1896                                 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1897                 break;
1898         case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1899                 action_frame->u.action.u.ht_smps.smps_control =
1900                                 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1901                 break;
1902         case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1903                 action_frame->u.action.u.ht_smps.smps_control =
1904                                 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1905                 break;
1906         }
1907
1908         return skb;
1909 }
1910
1911 int rtl_send_smps_action(struct ieee80211_hw *hw,
1912                          struct ieee80211_sta *sta,
1913                          enum ieee80211_smps_mode smps)
1914 {
1915         struct rtl_priv *rtlpriv = rtl_priv(hw);
1916         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1917         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1918         struct sk_buff *skb = NULL;
1919         struct rtl_tcb_desc tcb_desc;
1920         u8 bssid[ETH_ALEN] = {0};
1921
1922         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1923
1924         if (rtlpriv->mac80211.act_scanning)
1925                 goto err_free;
1926
1927         if (!sta)
1928                 goto err_free;
1929
1930         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1931                 goto err_free;
1932
1933         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1934                 goto err_free;
1935
1936         if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1937                 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1938         else
1939                 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1940
1941         skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1942         /* this is a type = mgmt * stype = action frame */
1943         if (skb) {
1944                 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1945                 struct rtl_sta_info *sta_entry =
1946                         (struct rtl_sta_info *) sta->drv_priv;
1947                 sta_entry->mimo_ps = smps;
1948                 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */
1949
1950                 info->control.rates[0].idx = 0;
1951                 info->band = hw->conf.chandef.chan->band;
1952                 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1953         }
1954         return 1;
1955
1956 err_free:
1957         return 0;
1958 }
1959 EXPORT_SYMBOL(rtl_send_smps_action);
1960
1961 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
1962 {
1963         struct rtl_priv *rtlpriv = rtl_priv(hw);
1964         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1965         enum io_type iotype;
1966
1967         if (!is_hal_stop(rtlhal)) {
1968                 switch (operation) {
1969                 case SCAN_OPT_BACKUP:
1970                         iotype = IO_CMD_PAUSE_DM_BY_SCAN;
1971                         rtlpriv->cfg->ops->set_hw_reg(hw,
1972                                                       HW_VAR_IO_CMD,
1973                                                       (u8 *)&iotype);
1974                         break;
1975                 case SCAN_OPT_RESTORE:
1976                         iotype = IO_CMD_RESUME_DM_BY_SCAN;
1977                         rtlpriv->cfg->ops->set_hw_reg(hw,
1978                                                       HW_VAR_IO_CMD,
1979                                                       (u8 *)&iotype);
1980                         break;
1981                 default:
1982                         pr_err("Unknown Scan Backup operation.\n");
1983                         break;
1984                 }
1985         }
1986 }
1987 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
1988
1989 /* because mac80211 have issues when can receive del ba
1990  * so here we just make a fake del_ba if we receive a ba_req
1991  * but rx_agg was opened to let mac80211 release some ba
1992  * related resources, so please this del_ba for tx
1993  */
1994 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1995                                 u8 *sa, u8 *bssid, u16 tid)
1996 {
1997         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1998         struct sk_buff *skb;
1999         struct ieee80211_mgmt *action_frame;
2000         u16 params;
2001
2002         /* 27 = header + category + action + smps mode */
2003         skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2004         if (!skb)
2005                 return NULL;
2006
2007         skb_reserve(skb, hw->extra_tx_headroom);
2008         action_frame = (void *)skb_put(skb, 34);
2009         memset(action_frame, 0, 34);
2010         memcpy(action_frame->sa, sa, ETH_ALEN);
2011         memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2012         memcpy(action_frame->bssid, bssid, ETH_ALEN);
2013         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2014                                                   IEEE80211_STYPE_ACTION);
2015         action_frame->u.action.category = WLAN_CATEGORY_BACK;
2016         action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2017         params = (u16)(1 << 11);        /* bit 11 initiator */
2018         params |= (u16)(tid << 12);     /* bit 15:12 TID number */
2019
2020         action_frame->u.action.u.delba.params = cpu_to_le16(params);
2021         action_frame->u.action.u.delba.reason_code =
2022                 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2023
2024         return skb;
2025 }
2026
2027 /*********************************************************
2028  *
2029  * IOT functions
2030  *
2031  *********************************************************/
2032 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2033                                   struct octet_string vendor_ie)
2034 {
2035         struct rtl_priv *rtlpriv = rtl_priv(hw);
2036         bool matched = false;
2037         static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2038         static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2039         static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2040         static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2041         static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2042         static u8 racap[] = { 0x00, 0x0c, 0x43 };
2043         static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2044         static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2045
2046         if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2047                 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2048                 rtlpriv->mac80211.vendor = PEER_ATH;
2049                 matched = true;
2050         } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2051                 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2052                 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2053                 rtlpriv->mac80211.vendor = PEER_BROAD;
2054                 matched = true;
2055         } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2056                 rtlpriv->mac80211.vendor = PEER_RAL;
2057                 matched = true;
2058         } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2059                 rtlpriv->mac80211.vendor = PEER_CISCO;
2060                 matched = true;
2061         } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2062                 rtlpriv->mac80211.vendor = PEER_MARV;
2063                 matched = true;
2064         }
2065
2066         return matched;
2067 }
2068
2069 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2070                 unsigned int len)
2071 {
2072         struct ieee80211_mgmt *mgmt = (void *)data;
2073         struct octet_string vendor_ie;
2074         u8 *pos, *end;
2075
2076         pos = (u8 *)mgmt->u.beacon.variable;
2077         end = data + len;
2078         while (pos < end) {
2079                 if (pos[0] == 221) {
2080                         vendor_ie.length = pos[1];
2081                         vendor_ie.octet = &pos[2];
2082                         if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2083                                 return true;
2084                 }
2085
2086                 if (pos + 2 + pos[1] > end)
2087                         return false;
2088
2089                 pos += 2 + pos[1];
2090         }
2091         return false;
2092 }
2093
2094 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2095 {
2096         struct rtl_priv *rtlpriv = rtl_priv(hw);
2097         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2098         struct ieee80211_hdr *hdr = (void *)data;
2099         u32 vendor = PEER_UNKNOWN;
2100
2101         static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2102         static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2103         static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2104         static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2105         static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2106         static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2107         static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2108         static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2109         static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2110         static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2111         static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2112         static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2113         static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2114         static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2115         static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2116         static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2117
2118         if (mac->opmode != NL80211_IFTYPE_STATION)
2119                 return;
2120
2121         if (mac->link_state == MAC80211_NOLINK) {
2122                 mac->vendor = PEER_UNKNOWN;
2123                 return;
2124         }
2125
2126         if (mac->cnt_after_linked > 2)
2127                 return;
2128
2129         /* check if this really is a beacon */
2130         if (!ieee80211_is_beacon(hdr->frame_control))
2131                 return;
2132
2133         /* min. beacon length + FCS_LEN */
2134         if (len <= 40 + FCS_LEN)
2135                 return;
2136
2137         /* and only beacons from the associated BSSID, please */
2138         if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2139                 return;
2140
2141         if (rtl_find_221_ie(hw, data, len))
2142                 vendor = mac->vendor;
2143
2144         if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2145                 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2146                 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2147                 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2148                 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2149                 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2150                 vendor == PEER_ATH) {
2151                 vendor = PEER_ATH;
2152                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2153         } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2154                 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2155                 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2156                 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2157                 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2158                 vendor == PEER_RAL) {
2159                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2160                 vendor = PEER_RAL;
2161         } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2162                 vendor == PEER_CISCO) {
2163                 vendor = PEER_CISCO;
2164                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2165         } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2166                 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2167                 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2168                 vendor == PEER_BROAD) {
2169                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2170                 vendor = PEER_BROAD;
2171         } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2172                 vendor == PEER_MARV) {
2173                 vendor = PEER_MARV;
2174                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2175         }
2176
2177         mac->vendor = vendor;
2178 }
2179 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2180
2181 MODULE_AUTHOR("lizhaoming       <chaoming_li@realsil.com.cn>");
2182 MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
2183 MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
2184 MODULE_LICENSE("GPL");
2185 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2186
2187 struct rtl_global_var rtl_global_var = {};
2188 EXPORT_SYMBOL_GPL(rtl_global_var);
2189
2190 static int __init rtl_core_module_init(void)
2191 {
2192         if (rtl_rate_control_register())
2193                 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2194
2195         /* init some global vars */
2196         INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2197         spin_lock_init(&rtl_global_var.glb_list_lock);
2198
2199         return 0;
2200 }
2201
2202 static void __exit rtl_core_module_exit(void)
2203 {
2204         /*RC*/
2205         rtl_rate_control_unregister();
2206 }
2207
2208 module_init(rtl_core_module_init);
2209 module_exit(rtl_core_module_exit);