drivers/net/wireless/realtek/rtlwifi/base.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2009-2012  Realtek Corporation.*/
   3
   4 #include "wifi.h"
   5 #include "rc.h"
   6 #include "base.h"
   7 #include "efuse.h"
   8 #include "cam.h"
   9 #include "ps.h"
  10 #include "regd.h"
  11 #include "pci.h"
  12 #include <linux/ip.h>
  13 #include <linux/module.h>
  14 #include <linux/udp.h>
  15
  16 /*
  17  *NOTICE!!!: This file will be very big, we should
  18  *keep it clear under following roles:
  19  *
  20  *This file include following parts, so, if you add new
  21  *functions into this file, please check which part it
  22  *should includes. or check if you should add new part
  23  *for this file:
  24  *
  25  *1) mac80211 init functions
  26  *2) tx information functions
  27  *3) functions called by core.c
  28  *4) wq & timer callback functions
  29  *5) frame process functions
  30  *6) IOT functions
  31  *7) sysfs functions
  32  *8) vif functions
  33  *9) ...
  34  */
  35
  36 /*********************************************************
  37  *
  38  * mac80211 init functions
  39  *
  40  *********************************************************/
  41 static struct ieee80211_channel rtl_channeltable_2g[] = {
  42         {.center_freq = 2412, .hw_value = 1,},
  43         {.center_freq = 2417, .hw_value = 2,},
  44         {.center_freq = 2422, .hw_value = 3,},
  45         {.center_freq = 2427, .hw_value = 4,},
  46         {.center_freq = 2432, .hw_value = 5,},
  47         {.center_freq = 2437, .hw_value = 6,},
  48         {.center_freq = 2442, .hw_value = 7,},
  49         {.center_freq = 2447, .hw_value = 8,},
  50         {.center_freq = 2452, .hw_value = 9,},
  51         {.center_freq = 2457, .hw_value = 10,},
  52         {.center_freq = 2462, .hw_value = 11,},
  53         {.center_freq = 2467, .hw_value = 12,},
  54         {.center_freq = 2472, .hw_value = 13,},
  55         {.center_freq = 2484, .hw_value = 14,},
  56 };
  57
  58 static struct ieee80211_channel rtl_channeltable_5g[] = {
  59         {.center_freq = 5180, .hw_value = 36,},
  60         {.center_freq = 5200, .hw_value = 40,},
  61         {.center_freq = 5220, .hw_value = 44,},
  62         {.center_freq = 5240, .hw_value = 48,},
  63         {.center_freq = 5260, .hw_value = 52,},
  64         {.center_freq = 5280, .hw_value = 56,},
  65         {.center_freq = 5300, .hw_value = 60,},
  66         {.center_freq = 5320, .hw_value = 64,},
  67         {.center_freq = 5500, .hw_value = 100,},
  68         {.center_freq = 5520, .hw_value = 104,},
  69         {.center_freq = 5540, .hw_value = 108,},
  70         {.center_freq = 5560, .hw_value = 112,},
  71         {.center_freq = 5580, .hw_value = 116,},
  72         {.center_freq = 5600, .hw_value = 120,},
  73         {.center_freq = 5620, .hw_value = 124,},
  74         {.center_freq = 5640, .hw_value = 128,},
  75         {.center_freq = 5660, .hw_value = 132,},
  76         {.center_freq = 5680, .hw_value = 136,},
  77         {.center_freq = 5700, .hw_value = 140,},
  78         {.center_freq = 5745, .hw_value = 149,},
  79         {.center_freq = 5765, .hw_value = 153,},
  80         {.center_freq = 5785, .hw_value = 157,},
  81         {.center_freq = 5805, .hw_value = 161,},
  82         {.center_freq = 5825, .hw_value = 165,},
  83 };
  84
  85 static struct ieee80211_rate rtl_ratetable_2g[] = {
  86         {.bitrate = 10, .hw_value = 0x00,},
  87         {.bitrate = 20, .hw_value = 0x01,},
  88         {.bitrate = 55, .hw_value = 0x02,},
  89         {.bitrate = 110, .hw_value = 0x03,},
  90         {.bitrate = 60, .hw_value = 0x04,},
  91         {.bitrate = 90, .hw_value = 0x05,},
  92         {.bitrate = 120, .hw_value = 0x06,},
  93         {.bitrate = 180, .hw_value = 0x07,},
  94         {.bitrate = 240, .hw_value = 0x08,},
  95         {.bitrate = 360, .hw_value = 0x09,},
  96         {.bitrate = 480, .hw_value = 0x0a,},
  97         {.bitrate = 540, .hw_value = 0x0b,},
  98 };
  99
 100 static struct ieee80211_rate rtl_ratetable_5g[] = {
 101         {.bitrate = 60, .hw_value = 0x04,},
 102         {.bitrate = 90, .hw_value = 0x05,},
 103         {.bitrate = 120, .hw_value = 0x06,},
 104         {.bitrate = 180, .hw_value = 0x07,},
 105         {.bitrate = 240, .hw_value = 0x08,},
 106         {.bitrate = 360, .hw_value = 0x09,},
 107         {.bitrate = 480, .hw_value = 0x0a,},
 108         {.bitrate = 540, .hw_value = 0x0b,},
 109 };
 110
 111 static const struct ieee80211_supported_band rtl_band_2ghz = {
 112         .band = NL80211_BAND_2GHZ,
 113
 114         .channels = rtl_channeltable_2g,
 115         .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
 116
 117         .bitrates = rtl_ratetable_2g,
 118         .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
 119
 120         .ht_cap = {0},
 121 };
 122
 123 static struct ieee80211_supported_band rtl_band_5ghz = {
 124         .band = NL80211_BAND_5GHZ,
 125
 126         .channels = rtl_channeltable_5g,
 127         .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
 128
 129         .bitrates = rtl_ratetable_5g,
 130         .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
 131
 132         .ht_cap = {0},
 133 };
 134
 135 static const u8 tid_to_ac[] = {
 136         2, /* IEEE80211_AC_BE */
 137         3, /* IEEE80211_AC_BK */
 138         3, /* IEEE80211_AC_BK */
 139         2, /* IEEE80211_AC_BE */
 140         1, /* IEEE80211_AC_VI */
 141         1, /* IEEE80211_AC_VI */
 142         0, /* IEEE80211_AC_VO */
 143         0, /* IEEE80211_AC_VO */
 144 };
 145
 146 u8 rtl_tid_to_ac(u8 tid)
 147 {
 148         return tid_to_ac[tid];
 149 }
 150 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
 151
 152 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
 153                                   struct ieee80211_sta_ht_cap *ht_cap)
 154 {
 155         struct rtl_priv *rtlpriv = rtl_priv(hw);
 156         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 157
 158         ht_cap->ht_supported = true;
 159         ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 160             IEEE80211_HT_CAP_SGI_40 |
 161             IEEE80211_HT_CAP_SGI_20 |
 162             IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
 163
 164         if (rtlpriv->rtlhal.disable_amsdu_8k)
 165                 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
 166
 167         /*
 168          *Maximum length of AMPDU that the STA can receive.
 169          *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
 170          */
 171         ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 172
 173         /*Minimum MPDU start spacing , */
 174         ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
 175
 176         ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 177
 178         /*hw->wiphy->bands[NL80211_BAND_2GHZ]
 179          *base on ant_num
 180          *rx_mask: RX mask
 181          *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
 182          *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
 183          *if rx_ant >= 3 rx_mask[2]= 0xff;
 184          *if BW_40 rx_mask[4]= 0x01;
 185          *highest supported RX rate
 186          */
 187         if (rtlpriv->dm.supp_phymode_switch) {
 188                 pr_info("Support phy mode switch\n");
 189
 190                 ht_cap->mcs.rx_mask[0] = 0xFF;
 191                 ht_cap->mcs.rx_mask[1] = 0xFF;
 192                 ht_cap->mcs.rx_mask[4] = 0x01;
 193
 194                 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 195         } else {
 196                 if (get_rf_type(rtlphy) == RF_1T2R ||
 197                     get_rf_type(rtlphy) == RF_2T2R) {
 198                         rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
 199                                 "1T2R or 2T2R\n");
 200                         ht_cap->mcs.rx_mask[0] = 0xFF;
 201                         ht_cap->mcs.rx_mask[1] = 0xFF;
 202                         ht_cap->mcs.rx_mask[4] = 0x01;
 203
 204                         ht_cap->mcs.rx_highest =
 205                                  cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 206                 } else if (get_rf_type(rtlphy) == RF_1T1R) {
 207                         rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
 208
 209                         ht_cap->mcs.rx_mask[0] = 0xFF;
 210                         ht_cap->mcs.rx_mask[1] = 0x00;
 211                         ht_cap->mcs.rx_mask[4] = 0x01;
 212
 213                         ht_cap->mcs.rx_highest =
 214                                  cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
 215                 }
 216         }
 217 }
 218
 219 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
 220                                    struct ieee80211_sta_vht_cap *vht_cap)
 221 {
 222         struct rtl_priv *rtlpriv = rtl_priv(hw);
 223         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 224
 225         if (!(rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT))
 226                 return;
 227
 228         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE ||
 229             rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) {
 230                 u16 mcs_map;
 231
 232                 vht_cap->vht_supported = true;
 233                 vht_cap->cap =
 234                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 235                         IEEE80211_VHT_CAP_SHORT_GI_80 |
 236                         IEEE80211_VHT_CAP_TXSTBC |
 237                         IEEE80211_VHT_CAP_RXSTBC_1 |
 238                         IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 239                         IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 240                         IEEE80211_VHT_CAP_HTC_VHT |
 241                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 242                         IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 243                         IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 244                         0;
 245
 246                 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 247                         IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
 248                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 249                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 250                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 251                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 252                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 253                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 254
 255                 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 256                 vht_cap->vht_mcs.rx_highest =
 257                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 258                 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 259                 vht_cap->vht_mcs.tx_highest =
 260                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 261         } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
 262                 u16 mcs_map;
 263
 264                 vht_cap->vht_supported = true;
 265                 vht_cap->cap =
 266                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 267                         IEEE80211_VHT_CAP_SHORT_GI_80 |
 268                         IEEE80211_VHT_CAP_TXSTBC |
 269                         IEEE80211_VHT_CAP_RXSTBC_1 |
 270                         IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 271                         IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 272                         IEEE80211_VHT_CAP_HTC_VHT |
 273                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 274                         IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 275                         IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 276                         0;
 277
 278                 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 279                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
 280                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 281                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 282                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 283                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 284                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 285                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 286
 287                 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 288                 vht_cap->vht_mcs.rx_highest =
 289                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 290                 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 291                 vht_cap->vht_mcs.tx_highest =
 292                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 293         }
 294 }
 295
 296 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
 297 {
 298         struct rtl_priv *rtlpriv = rtl_priv(hw);
 299         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 300         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 301         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 302         struct ieee80211_supported_band *sband;
 303
 304         if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
 305             rtlhal->bandset == BAND_ON_BOTH) {
 306                 /* 1: 2.4 G bands */
 307                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 308                 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
 309
 310                 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
 311                  * to default value(1T1R) */
 312                 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz,
 313                                 sizeof(struct ieee80211_supported_band));
 314
 315                 /* <3> init ht cap base on ant_num */
 316                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 317
 318                 /* <4> set mac->sband to wiphy->sband */
 319                 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
 320
 321                 /* 2: 5 G bands */
 322                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 323                 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
 324
 325                 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
 326                  * to default value(1T1R) */
 327                 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz,
 328                                 sizeof(struct ieee80211_supported_band));
 329
 330                 /* <3> init ht cap base on ant_num */
 331                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 332
 333                 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 334                 /* <4> set mac->sband to wiphy->sband */
 335                 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
 336         } else {
 337                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 338                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 339                         sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
 340
 341                         /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
 342                          * to default value(1T1R) */
 343                         memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]),
 344                                &rtl_band_2ghz,
 345                                sizeof(struct ieee80211_supported_band));
 346
 347                         /* <3> init ht cap base on ant_num */
 348                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 349
 350                         /* <4> set mac->sband to wiphy->sband */
 351                         hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
 352                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 353                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 354                         sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
 355
 356                         /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
 357                          * to default value(1T1R) */
 358                         memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]),
 359                                &rtl_band_5ghz,
 360                                sizeof(struct ieee80211_supported_band));
 361
 362                         /* <3> init ht cap base on ant_num */
 363                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 364
 365                         _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 366                         /* <4> set mac->sband to wiphy->sband */
 367                         hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
 368                 } else {
 369                         pr_err("Err BAND %d\n",
 370                                rtlhal->current_bandtype);
 371                 }
 372         }
 373         /* <5> set hw caps */
 374         ieee80211_hw_set(hw, SIGNAL_DBM);
 375         ieee80211_hw_set(hw, RX_INCLUDES_FCS);
 376         ieee80211_hw_set(hw, AMPDU_AGGREGATION);
 377         ieee80211_hw_set(hw, MFP_CAPABLE);
 378         ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
 379         ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
 380         ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
 381
 382         /* swlps or hwlps has been set in diff chip in init_sw_vars */
 383         if (rtlpriv->psc.swctrl_lps) {
 384                 ieee80211_hw_set(hw, SUPPORTS_PS);
 385                 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
 386         }
 387         if (rtlpriv->psc.fwctrl_lps) {
 388                 ieee80211_hw_set(hw, SUPPORTS_PS);
 389                 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
 390         }
 391         hw->wiphy->interface_modes =
 392             BIT(NL80211_IFTYPE_AP) |
 393             BIT(NL80211_IFTYPE_STATION) |
 394             BIT(NL80211_IFTYPE_ADHOC) |
 395             BIT(NL80211_IFTYPE_MESH_POINT) |
 396             BIT(NL80211_IFTYPE_P2P_CLIENT) |
 397             BIT(NL80211_IFTYPE_P2P_GO);
 398         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 399
 400         hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 401
 402         hw->wiphy->rts_threshold = 2347;
 403
 404         hw->queues = AC_MAX;
 405         hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
 406
 407         /* TODO: Correct this value for our hw */
 408         hw->max_listen_interval = MAX_LISTEN_INTERVAL;
 409         hw->max_rate_tries = MAX_RATE_TRIES;
 410         /* hw->max_rates = 1; */
 411         hw->sta_data_size = sizeof(struct rtl_sta_info);
 412
 413 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
 414 #ifdef CONFIG_PM
 415         if (rtlpriv->psc.wo_wlan_mode) {
 416                 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
 417                         rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
 418                 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
 419                         rtlpriv->wowlan.n_patterns =
 420                                 MAX_SUPPORT_WOL_PATTERN_NUM;
 421                         rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
 422                         rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
 423                 }
 424                 hw->wiphy->wowlan = &rtlpriv->wowlan;
 425         }
 426 #endif
 427
 428         /* <6> mac address */
 429         if (is_valid_ether_addr(rtlefuse->dev_addr)) {
 430                 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
 431         } else {
 432                 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
 433
 434                 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
 435                 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
 436         }
 437 }
 438
 439 static void rtl_watchdog_wq_callback(struct work_struct *work);
 440 static void rtl_fwevt_wq_callback(struct work_struct *work);
 441 static void rtl_c2hcmd_wq_callback(struct work_struct *work);
 442
 443 static int _rtl_init_deferred_work(struct ieee80211_hw *hw)
 444 {
 445         struct rtl_priv *rtlpriv = rtl_priv(hw);
 446         struct workqueue_struct *wq;
 447
 448         wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
 449         if (!wq)
 450                 return -ENOMEM;
 451
 452         /* <1> timer */
 453         timer_setup(&rtlpriv->works.watchdog_timer,
 454                     rtl_watch_dog_timer_callback, 0);
 455
 456         /* <2> work queue */
 457         rtlpriv->works.hw = hw;
 458         rtlpriv->works.rtl_wq = wq;
 459
 460         INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
 461                           rtl_watchdog_wq_callback);
 462         INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
 463                           rtl_ips_nic_off_wq_callback);
 464         INIT_DELAYED_WORK(&rtlpriv->works.ps_work, rtl_swlps_wq_callback);
 465         INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
 466                           rtl_swlps_rfon_wq_callback);
 467         INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, rtl_fwevt_wq_callback);
 468         INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, rtl_c2hcmd_wq_callback);
 469         return 0;
 470 }
 471
 472 void rtl_deinit_deferred_work(struct ieee80211_hw *hw, bool ips_wq)
 473 {
 474         struct rtl_priv *rtlpriv = rtl_priv(hw);
 475
 476         del_timer_sync(&rtlpriv->works.watchdog_timer);
 477
 478         cancel_delayed_work_sync(&rtlpriv->works.watchdog_wq);
 479         if (ips_wq)
 480                 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
 481         else
 482                 cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq);
 483         cancel_delayed_work_sync(&rtlpriv->works.ps_work);
 484         cancel_delayed_work_sync(&rtlpriv->works.ps_rfon_wq);
 485         cancel_delayed_work_sync(&rtlpriv->works.fwevt_wq);
 486         cancel_delayed_work_sync(&rtlpriv->works.c2hcmd_wq);
 487 }
 488 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
 489
 490 void rtl_init_rfkill(struct ieee80211_hw *hw)
 491 {
 492         struct rtl_priv *rtlpriv = rtl_priv(hw);
 493
 494         bool radio_state;
 495         bool blocked;
 496         u8 valid = 0;
 497
 498         /*set init state to on */
 499         rtlpriv->rfkill.rfkill_state = true;
 500         wiphy_rfkill_set_hw_state(hw->wiphy, 0);
 501
 502         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
 503
 504         if (valid) {
 505                 pr_info("rtlwifi: wireless switch is %s\n",
 506                         rtlpriv->rfkill.rfkill_state ? "on" : "off");
 507
 508                 rtlpriv->rfkill.rfkill_state = radio_state;
 509
 510                 blocked = rtlpriv->rfkill.rfkill_state != 1;
 511                 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
 512         }
 513
 514         wiphy_rfkill_start_polling(hw->wiphy);
 515 }
 516 EXPORT_SYMBOL(rtl_init_rfkill);
 517
 518 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
 519 {
 520         wiphy_rfkill_stop_polling(hw->wiphy);
 521 }
 522 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
 523
 524 int rtl_init_core(struct ieee80211_hw *hw)
 525 {
 526         struct rtl_priv *rtlpriv = rtl_priv(hw);
 527         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 528
 529         /* <1> init mac80211 */
 530         _rtl_init_mac80211(hw);
 531         rtlmac->hw = hw;
 532
 533         /* <2> rate control register */
 534         hw->rate_control_algorithm = "rtl_rc";
 535
 536         /*
 537          * <3> init CRDA must come after init
 538          * mac80211 hw  in _rtl_init_mac80211.
 539          */
 540         if (rtl_regd_init(hw, rtl_reg_notifier)) {
 541                 pr_err("REGD init failed\n");
 542                 return 1;
 543         }
 544
 545         /* <4> locks */
 546         mutex_init(&rtlpriv->locks.conf_mutex);
 547         mutex_init(&rtlpriv->locks.ips_mutex);
 548         mutex_init(&rtlpriv->locks.lps_mutex);
 549         spin_lock_init(&rtlpriv->locks.irq_th_lock);
 550         spin_lock_init(&rtlpriv->locks.h2c_lock);
 551         spin_lock_init(&rtlpriv->locks.rf_ps_lock);
 552         spin_lock_init(&rtlpriv->locks.rf_lock);
 553         spin_lock_init(&rtlpriv->locks.waitq_lock);
 554         spin_lock_init(&rtlpriv->locks.entry_list_lock);
 555         spin_lock_init(&rtlpriv->locks.scan_list_lock);
 556         spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
 557         spin_lock_init(&rtlpriv->locks.fw_ps_lock);
 558         spin_lock_init(&rtlpriv->locks.iqk_lock);
 559         /* <5> init list */
 560         INIT_LIST_HEAD(&rtlpriv->entry_list);
 561         INIT_LIST_HEAD(&rtlpriv->scan_list.list);
 562         skb_queue_head_init(&rtlpriv->tx_report.queue);
 563         skb_queue_head_init(&rtlpriv->c2hcmd_queue);
 564
 565         rtlmac->link_state = MAC80211_NOLINK;
 566
 567         /* <6> init deferred work */
 568         return _rtl_init_deferred_work(hw);
 569 }
 570 EXPORT_SYMBOL_GPL(rtl_init_core);
 571
 572 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
 573 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
 574                                             bool timeout);
 575
 576 void rtl_deinit_core(struct ieee80211_hw *hw)
 577 {
 578         rtl_c2hcmd_launcher(hw, 0);
 579         rtl_free_entries_from_scan_list(hw);
 580         rtl_free_entries_from_ack_queue(hw, false);
 581 }
 582 EXPORT_SYMBOL_GPL(rtl_deinit_core);
 583
 584 void rtl_init_rx_config(struct ieee80211_hw *hw)
 585 {
 586         struct rtl_priv *rtlpriv = rtl_priv(hw);
 587         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 588
 589         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
 590 }
 591 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
 592
 593 /*********************************************************
 594  *
 595  * tx information functions
 596  *
 597  *********************************************************/
 598 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
 599                                           struct rtl_tcb_desc *tcb_desc,
 600                                           struct ieee80211_tx_info *info)
 601 {
 602         struct rtl_priv *rtlpriv = rtl_priv(hw);
 603         u8 rate_flag = info->control.rates[0].flags;
 604
 605         tcb_desc->use_shortpreamble = false;
 606
 607         /* 1M can only use Long Preamble. 11B spec */
 608         if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
 609                 return;
 610         else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 611                 tcb_desc->use_shortpreamble = true;
 612
 613         return;
 614 }
 615
 616 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
 617                                struct ieee80211_sta *sta,
 618                                struct rtl_tcb_desc *tcb_desc,
 619                                struct ieee80211_tx_info *info)
 620 {
 621         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 622         u8 rate_flag = info->control.rates[0].flags;
 623         u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
 624         u8 sgi_80 = 0, bw_80 = 0;
 625
 626         tcb_desc->use_shortgi = false;
 627
 628         if (sta == NULL)
 629                 return;
 630
 631         sgi_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
 632         sgi_20 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
 633         sgi_80 = sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
 634
 635         if (!sta->deflink.ht_cap.ht_supported &&
 636             !sta->deflink.vht_cap.vht_supported)
 637                 return;
 638
 639         if (!sgi_40 && !sgi_20)
 640                 return;
 641
 642         if (mac->opmode == NL80211_IFTYPE_STATION) {
 643                 bw_40 = mac->bw_40;
 644                 bw_80 = mac->bw_80;
 645         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 646                  mac->opmode == NL80211_IFTYPE_ADHOC ||
 647                  mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 648                 bw_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 649                 bw_80 = sta->deflink.vht_cap.vht_supported;
 650         }
 651
 652         if (bw_80) {
 653                 if (sgi_80)
 654                         tcb_desc->use_shortgi = true;
 655                 else
 656                         tcb_desc->use_shortgi = false;
 657         } else {
 658                 if (bw_40 && sgi_40)
 659                         tcb_desc->use_shortgi = true;
 660                 else if (!bw_40 && sgi_20)
 661                         tcb_desc->use_shortgi = true;
 662         }
 663
 664         if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
 665                 tcb_desc->use_shortgi = false;
 666 }
 667
 668 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
 669                                        struct rtl_tcb_desc *tcb_desc,
 670                                        struct ieee80211_tx_info *info)
 671 {
 672         struct rtl_priv *rtlpriv = rtl_priv(hw);
 673         u8 rate_flag = info->control.rates[0].flags;
 674
 675         /* Common Settings */
 676         tcb_desc->rts_stbc = false;
 677         tcb_desc->cts_enable = false;
 678         tcb_desc->rts_sc = 0;
 679         tcb_desc->rts_bw = false;
 680         tcb_desc->rts_use_shortpreamble = false;
 681         tcb_desc->rts_use_shortgi = false;
 682
 683         if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 684                 /* Use CTS-to-SELF in protection mode. */
 685                 tcb_desc->rts_enable = true;
 686                 tcb_desc->cts_enable = true;
 687                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 688         } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
 689                 /* Use RTS-CTS in protection mode. */
 690                 tcb_desc->rts_enable = true;
 691                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 692         }
 693 }
 694
 695 u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
 696                             enum wireless_mode wirelessmode)
 697 {
 698         struct rtl_priv *rtlpriv = rtl_priv(hw);
 699         struct rtl_phy *rtlphy = &rtlpriv->phy;
 700         u8 ret = 0;
 701
 702         switch (rate_index) {
 703         case RATR_INX_WIRELESS_NGB:
 704                 if (rtlphy->rf_type == RF_1T1R)
 705                         ret = RATEID_IDX_BGN_40M_1SS;
 706                 else
 707                         ret = RATEID_IDX_BGN_40M_2SS;
 708                 ; break;
 709         case RATR_INX_WIRELESS_N:
 710         case RATR_INX_WIRELESS_NG:
 711                 if (rtlphy->rf_type == RF_1T1R)
 712                         ret = RATEID_IDX_GN_N1SS;
 713                 else
 714                         ret = RATEID_IDX_GN_N2SS;
 715                 ; break;
 716         case RATR_INX_WIRELESS_NB:
 717                 if (rtlphy->rf_type == RF_1T1R)
 718                         ret = RATEID_IDX_BGN_20M_1SS_BN;
 719                 else
 720                         ret = RATEID_IDX_BGN_20M_2SS_BN;
 721                 ; break;
 722         case RATR_INX_WIRELESS_GB:
 723                 ret = RATEID_IDX_BG;
 724                 break;
 725         case RATR_INX_WIRELESS_G:
 726                 ret = RATEID_IDX_G;
 727                 break;
 728         case RATR_INX_WIRELESS_B:
 729                 ret = RATEID_IDX_B;
 730                 break;
 731         case RATR_INX_WIRELESS_MC:
 732                 if (wirelessmode == WIRELESS_MODE_B ||
 733                     wirelessmode == WIRELESS_MODE_G ||
 734                     wirelessmode == WIRELESS_MODE_N_24G ||
 735                     wirelessmode == WIRELESS_MODE_AC_24G)
 736                         ret = RATEID_IDX_BG;
 737                 else
 738                         ret = RATEID_IDX_G;
 739                 break;
 740         case RATR_INX_WIRELESS_AC_5N:
 741                 if (rtlphy->rf_type == RF_1T1R)
 742                         ret = RATEID_IDX_VHT_1SS;
 743                 else
 744                         ret = RATEID_IDX_VHT_2SS;
 745                 break;
 746         case RATR_INX_WIRELESS_AC_24N:
 747                 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
 748                         if (rtlphy->rf_type == RF_1T1R)
 749                                 ret = RATEID_IDX_VHT_1SS;
 750                         else
 751                                 ret = RATEID_IDX_VHT_2SS;
 752                 } else {
 753                         if (rtlphy->rf_type == RF_1T1R)
 754                                 ret = RATEID_IDX_MIX1;
 755                         else
 756                                 ret = RATEID_IDX_MIX2;
 757                 }
 758                 break;
 759         default:
 760                 ret = RATEID_IDX_BGN_40M_2SS;
 761                 break;
 762         }
 763         return ret;
 764 }
 765 EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id);
 766
 767 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
 768                                    struct ieee80211_sta *sta,
 769                                    struct rtl_tcb_desc *tcb_desc)
 770 {
 771 #define SET_RATE_ID(rate_id)                                    \
 772         ({typeof(rate_id) _id = rate_id;                        \
 773           ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?     \
 774                 rtl_mrate_idx_to_arfr_id(hw, _id,               \
 775                         (sta_entry ? sta_entry->wireless_mode : \
 776                          WIRELESS_MODE_G)) :                    \
 777                 _id); })
 778
 779         struct rtl_priv *rtlpriv = rtl_priv(hw);
 780         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 781         struct rtl_sta_info *sta_entry = NULL;
 782         u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
 783
 784         if (sta) {
 785                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 786                 ratr_index = sta_entry->ratr_index;
 787         }
 788         if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
 789                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 790                         tcb_desc->ratr_index = 0;
 791                 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
 792                                 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 793                         if (tcb_desc->multicast || tcb_desc->broadcast) {
 794                                 tcb_desc->hw_rate =
 795                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
 796                                 tcb_desc->use_driver_rate = 1;
 797                                 tcb_desc->ratr_index =
 798                                         SET_RATE_ID(RATR_INX_WIRELESS_MC);
 799                         } else {
 800                                 tcb_desc->ratr_index = ratr_index;
 801                         }
 802                 } else if (mac->opmode == NL80211_IFTYPE_AP) {
 803                         tcb_desc->ratr_index = ratr_index;
 804                 }
 805         }
 806
 807         if (rtlpriv->dm.useramask) {
 808                 tcb_desc->ratr_index = ratr_index;
 809                 /* TODO we will differentiate adhoc and station future  */
 810                 if (mac->opmode == NL80211_IFTYPE_STATION ||
 811                     mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 812                         tcb_desc->mac_id = 0;
 813
 814                         if (sta &&
 815                             (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
 816                                 ;       /* use sta_entry->ratr_index */
 817                         else if (mac->mode == WIRELESS_MODE_AC_5G)
 818                                 tcb_desc->ratr_index =
 819                                         SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
 820                         else if (mac->mode == WIRELESS_MODE_AC_24G)
 821                                 tcb_desc->ratr_index =
 822                                         SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
 823                         else if (mac->mode == WIRELESS_MODE_N_24G)
 824                                 tcb_desc->ratr_index =
 825                                         SET_RATE_ID(RATR_INX_WIRELESS_NGB);
 826                         else if (mac->mode == WIRELESS_MODE_N_5G)
 827                                 tcb_desc->ratr_index =
 828                                         SET_RATE_ID(RATR_INX_WIRELESS_NG);
 829                         else if (mac->mode & WIRELESS_MODE_G)
 830                                 tcb_desc->ratr_index =
 831                                         SET_RATE_ID(RATR_INX_WIRELESS_GB);
 832                         else if (mac->mode & WIRELESS_MODE_B)
 833                                 tcb_desc->ratr_index =
 834                                         SET_RATE_ID(RATR_INX_WIRELESS_B);
 835                         else if (mac->mode & WIRELESS_MODE_A)
 836                                 tcb_desc->ratr_index =
 837                                         SET_RATE_ID(RATR_INX_WIRELESS_G);
 838
 839                 } else if (mac->opmode == NL80211_IFTYPE_AP ||
 840                         mac->opmode == NL80211_IFTYPE_ADHOC) {
 841                         if (NULL != sta) {
 842                                 if (sta->aid > 0)
 843                                         tcb_desc->mac_id = sta->aid + 1;
 844                                 else
 845                                         tcb_desc->mac_id = 1;
 846                         } else {
 847                                 tcb_desc->mac_id = 0;
 848                         }
 849                 }
 850         }
 851 #undef SET_RATE_ID
 852 }
 853
 854 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
 855                                       struct ieee80211_sta *sta,
 856                                       struct rtl_tcb_desc *tcb_desc)
 857 {
 858         struct rtl_priv *rtlpriv = rtl_priv(hw);
 859         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 860
 861         tcb_desc->packet_bw = false;
 862         if (!sta)
 863                 return;
 864         if (mac->opmode == NL80211_IFTYPE_AP ||
 865             mac->opmode == NL80211_IFTYPE_ADHOC ||
 866             mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 867                 if (!(sta->deflink.ht_cap.ht_supported) ||
 868                     !(sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
 869                         return;
 870         } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 871                 if (!mac->bw_40 || !(sta->deflink.ht_cap.ht_supported))
 872                         return;
 873         }
 874         if (tcb_desc->multicast || tcb_desc->broadcast)
 875                 return;
 876
 877         /*use legency rate, shall use 20MHz */
 878         if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
 879                 return;
 880
 881         tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
 882
 883         if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) {
 884                 if (mac->opmode == NL80211_IFTYPE_AP ||
 885                     mac->opmode == NL80211_IFTYPE_ADHOC ||
 886                     mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 887                         if (!(sta->deflink.vht_cap.vht_supported))
 888                                 return;
 889                 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 890                         if (!mac->bw_80 ||
 891                             !(sta->deflink.vht_cap.vht_supported))
 892                                 return;
 893                 }
 894                 if (tcb_desc->hw_rate <=
 895                         rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
 896                         return;
 897                 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
 898         }
 899 }
 900
 901 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
 902                                       struct ieee80211_sta *sta)
 903 {
 904         struct rtl_priv *rtlpriv = rtl_priv(hw);
 905         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 906         u8 hw_rate;
 907         u16 tx_mcs_map = le16_to_cpu(sta->deflink.vht_cap.vht_mcs.tx_mcs_map);
 908
 909         if ((get_rf_type(rtlphy) == RF_2T2R) &&
 910             (tx_mcs_map & 0x000c) != 0x000c) {
 911                 if ((tx_mcs_map & 0x000c) >> 2 ==
 912                         IEEE80211_VHT_MCS_SUPPORT_0_7)
 913                         hw_rate =
 914                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
 915                 else if ((tx_mcs_map  & 0x000c) >> 2 ==
 916                         IEEE80211_VHT_MCS_SUPPORT_0_8)
 917                         hw_rate =
 918                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
 919                 else
 920                         hw_rate =
 921                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
 922         } else {
 923                 if ((tx_mcs_map  & 0x0003) ==
 924                         IEEE80211_VHT_MCS_SUPPORT_0_7)
 925                         hw_rate =
 926                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
 927                 else if ((tx_mcs_map  & 0x0003) ==
 928                         IEEE80211_VHT_MCS_SUPPORT_0_8)
 929                         hw_rate =
 930                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
 931                 else
 932                         hw_rate =
 933                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
 934         }
 935
 936         return hw_rate;
 937 }
 938
 939 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
 940                                   struct ieee80211_sta *sta)
 941 {
 942         struct rtl_priv *rtlpriv = rtl_priv(hw);
 943         struct rtl_phy *rtlphy = &rtlpriv->phy;
 944         u8 hw_rate;
 945
 946         if (get_rf_type(rtlphy) == RF_2T2R &&
 947             sta->deflink.ht_cap.mcs.rx_mask[1] != 0)
 948                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
 949         else
 950                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
 951
 952         return hw_rate;
 953 }
 954
 955 /* mac80211's rate_idx is like this:
 956  *
 957  * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
 958  *
 959  * B/G rate:
 960  * (rx_status->flag & RX_FLAG_HT) = 0,
 961  * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
 962  *
 963  * N rate:
 964  * (rx_status->flag & RX_FLAG_HT) = 1,
 965  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 966  *
 967  * 5G band:rx_status->band == NL80211_BAND_5GHZ
 968  * A rate:
 969  * (rx_status->flag & RX_FLAG_HT) = 0,
 970  * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
 971  *
 972  * N rate:
 973  * (rx_status->flag & RX_FLAG_HT) = 1,
 974  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 975  *
 976  * VHT rates:
 977  * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
 978  * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
 979  */
 980 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
 981                          u8 desc_rate)
 982 {
 983         int rate_idx;
 984
 985         if (isvht) {
 986                 switch (desc_rate) {
 987                 case DESC_RATEVHT1SS_MCS0:
 988                         rate_idx = 0;
 989                         break;
 990                 case DESC_RATEVHT1SS_MCS1:
 991                         rate_idx = 1;
 992                         break;
 993                 case DESC_RATEVHT1SS_MCS2:
 994                         rate_idx = 2;
 995                         break;
 996                 case DESC_RATEVHT1SS_MCS3:
 997                         rate_idx = 3;
 998                         break;
 999                 case DESC_RATEVHT1SS_MCS4:
1000                         rate_idx = 4;
1001                         break;
1002                 case DESC_RATEVHT1SS_MCS5:
1003                         rate_idx = 5;
1004                         break;
1005                 case DESC_RATEVHT1SS_MCS6:
1006                         rate_idx = 6;
1007                         break;
1008                 case DESC_RATEVHT1SS_MCS7:
1009                         rate_idx = 7;
1010                         break;
1011                 case DESC_RATEVHT1SS_MCS8:
1012                         rate_idx = 8;
1013                         break;
1014                 case DESC_RATEVHT1SS_MCS9:
1015                         rate_idx = 9;
1016                         break;
1017                 case DESC_RATEVHT2SS_MCS0:
1018                         rate_idx = 0;
1019                         break;
1020                 case DESC_RATEVHT2SS_MCS1:
1021                         rate_idx = 1;
1022                         break;
1023                 case DESC_RATEVHT2SS_MCS2:
1024                         rate_idx = 2;
1025                         break;
1026                 case DESC_RATEVHT2SS_MCS3:
1027                         rate_idx = 3;
1028                         break;
1029                 case DESC_RATEVHT2SS_MCS4:
1030                         rate_idx = 4;
1031                         break;
1032                 case DESC_RATEVHT2SS_MCS5:
1033                         rate_idx = 5;
1034                         break;
1035                 case DESC_RATEVHT2SS_MCS6:
1036                         rate_idx = 6;
1037                         break;
1038                 case DESC_RATEVHT2SS_MCS7:
1039                         rate_idx = 7;
1040                         break;
1041                 case DESC_RATEVHT2SS_MCS8:
1042                         rate_idx = 8;
1043                         break;
1044                 case DESC_RATEVHT2SS_MCS9:
1045                         rate_idx = 9;
1046                         break;
1047                 default:
1048                         rate_idx = 0;
1049                         break;
1050                 }
1051                 return rate_idx;
1052         }
1053         if (false == isht) {
1054                 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
1055                         switch (desc_rate) {
1056                         case DESC_RATE1M:
1057                                 rate_idx = 0;
1058                                 break;
1059                         case DESC_RATE2M:
1060                                 rate_idx = 1;
1061                                 break;
1062                         case DESC_RATE5_5M:
1063                                 rate_idx = 2;
1064                                 break;
1065                         case DESC_RATE11M:
1066                                 rate_idx = 3;
1067                                 break;
1068                         case DESC_RATE6M:
1069                                 rate_idx = 4;
1070                                 break;
1071                         case DESC_RATE9M:
1072                                 rate_idx = 5;
1073                                 break;
1074                         case DESC_RATE12M:
1075                                 rate_idx = 6;
1076                                 break;
1077                         case DESC_RATE18M:
1078                                 rate_idx = 7;
1079                                 break;
1080                         case DESC_RATE24M:
1081                                 rate_idx = 8;
1082                                 break;
1083                         case DESC_RATE36M:
1084                                 rate_idx = 9;
1085                                 break;
1086                         case DESC_RATE48M:
1087                                 rate_idx = 10;
1088                                 break;
1089                         case DESC_RATE54M:
1090                                 rate_idx = 11;
1091                                 break;
1092                         default:
1093                                 rate_idx = 0;
1094                                 break;
1095                         }
1096                 } else {
1097                         switch (desc_rate) {
1098                         case DESC_RATE6M:
1099                                 rate_idx = 0;
1100                                 break;
1101                         case DESC_RATE9M:
1102                                 rate_idx = 1;
1103                                 break;
1104                         case DESC_RATE12M:
1105                                 rate_idx = 2;
1106                                 break;
1107                         case DESC_RATE18M:
1108                                 rate_idx = 3;
1109                                 break;
1110                         case DESC_RATE24M:
1111                                 rate_idx = 4;
1112                                 break;
1113                         case DESC_RATE36M:
1114                                 rate_idx = 5;
1115                                 break;
1116                         case DESC_RATE48M:
1117                                 rate_idx = 6;
1118                                 break;
1119                         case DESC_RATE54M:
1120                                 rate_idx = 7;
1121                                 break;
1122                         default:
1123                                 rate_idx = 0;
1124                                 break;
1125                         }
1126                 }
1127         } else {
1128                 switch (desc_rate) {
1129                 case DESC_RATEMCS0:
1130                         rate_idx = 0;
1131                         break;
1132                 case DESC_RATEMCS1:
1133                         rate_idx = 1;
1134                         break;
1135                 case DESC_RATEMCS2:
1136                         rate_idx = 2;
1137                         break;
1138                 case DESC_RATEMCS3:
1139                         rate_idx = 3;
1140                         break;
1141                 case DESC_RATEMCS4:
1142                         rate_idx = 4;
1143                         break;
1144                 case DESC_RATEMCS5:
1145                         rate_idx = 5;
1146                         break;
1147                 case DESC_RATEMCS6:
1148                         rate_idx = 6;
1149                         break;
1150                 case DESC_RATEMCS7:
1151                         rate_idx = 7;
1152                         break;
1153                 case DESC_RATEMCS8:
1154                         rate_idx = 8;
1155                         break;
1156                 case DESC_RATEMCS9:
1157                         rate_idx = 9;
1158                         break;
1159                 case DESC_RATEMCS10:
1160                         rate_idx = 10;
1161                         break;
1162                 case DESC_RATEMCS11:
1163                         rate_idx = 11;
1164                         break;
1165                 case DESC_RATEMCS12:
1166                         rate_idx = 12;
1167                         break;
1168                 case DESC_RATEMCS13:
1169                         rate_idx = 13;
1170                         break;
1171                 case DESC_RATEMCS14:
1172                         rate_idx = 14;
1173                         break;
1174                 case DESC_RATEMCS15:
1175                         rate_idx = 15;
1176                         break;
1177                 default:
1178                         rate_idx = 0;
1179                         break;
1180                 }
1181         }
1182         return rate_idx;
1183 }
1184 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1185
1186 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1187                               struct ieee80211_tx_info *info)
1188 {
1189         struct rtl_priv *rtlpriv = rtl_priv(hw);
1190         struct ieee80211_tx_rate *r = &info->status.rates[0];
1191         struct ieee80211_rate *txrate;
1192         u8 hw_value = 0x0;
1193
1194         if (r->flags & IEEE80211_TX_RC_MCS) {
1195                 /* HT MCS0-15 */
1196                 hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1197                            r->idx;
1198         } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1199                 /* VHT MCS0-9, NSS */
1200                 if (ieee80211_rate_get_vht_nss(r) == 2)
1201                         hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1202                 else
1203                         hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1204
1205                 hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1206         } else {
1207                 /* legacy */
1208                 txrate = ieee80211_get_tx_rate(hw, info);
1209
1210                 if (txrate)
1211                         hw_value = txrate->hw_value;
1212         }
1213
1214         /* check 5G band */
1215         if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1216             hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1217                 hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1218
1219         return hw_value;
1220 }
1221
1222 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1223                       struct ieee80211_tx_info *info,
1224                       struct ieee80211_sta *sta,
1225                       struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1226 {
1227 #define SET_RATE_ID(rate_id)                                    \
1228         ({typeof(rate_id) _id = rate_id;                        \
1229           ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?     \
1230                 rtl_mrate_idx_to_arfr_id(hw, _id,               \
1231                         (sta_entry ? sta_entry->wireless_mode : \
1232                          WIRELESS_MODE_G)) :                    \
1233                 _id); })
1234
1235         struct rtl_priv *rtlpriv = rtl_priv(hw);
1236         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1237         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1238         struct rtl_sta_info *sta_entry =
1239                 (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);
1240
1241         __le16 fc = rtl_get_fc(skb);
1242
1243         tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1244
1245         if (rtl_is_tx_report_skb(hw, skb))
1246                 tcb_desc->use_spe_rpt = 1;
1247
1248         if (ieee80211_is_data(fc)) {
1249                 /*
1250                  *we set data rate INX 0
1251                  *in rtl_rc.c   if skb is special data or
1252                  *mgt which need low data rate.
1253                  */
1254
1255                 /*
1256                  *So tcb_desc->hw_rate is just used for
1257                  *special data and mgt frames
1258                  */
1259                 if (info->control.rates[0].idx == 0 ||
1260                                 ieee80211_is_nullfunc(fc)) {
1261                         tcb_desc->use_driver_rate = true;
1262                         tcb_desc->ratr_index =
1263                                         SET_RATE_ID(RATR_INX_WIRELESS_MC);
1264
1265                         tcb_desc->disable_ratefallback = 1;
1266                 } else {
1267                         /*
1268                          *because hw will nerver use hw_rate
1269                          *when tcb_desc->use_driver_rate = false
1270                          *so we never set highest N rate here,
1271                          *and N rate will all be controlled by FW
1272                          *when tcb_desc->use_driver_rate = false
1273                          */
1274                         if (sta && sta->deflink.vht_cap.vht_supported) {
1275                                 tcb_desc->hw_rate =
1276                                 _rtl_get_vht_highest_n_rate(hw, sta);
1277                         } else {
1278                                 if (sta && sta->deflink.ht_cap.ht_supported) {
1279                                         tcb_desc->hw_rate =
1280                                                 _rtl_get_highest_n_rate(hw, sta);
1281                                 } else {
1282                                         if (rtlmac->mode == WIRELESS_MODE_B) {
1283                                                 tcb_desc->hw_rate =
1284                                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1285                                         } else {
1286                                                 tcb_desc->hw_rate =
1287                                                     rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1288                                         }
1289                                 }
1290                         }
1291                 }
1292
1293                 if (is_multicast_ether_addr(hdr->addr1))
1294                         tcb_desc->multicast = 1;
1295                 else if (is_broadcast_ether_addr(hdr->addr1))
1296                         tcb_desc->broadcast = 1;
1297
1298                 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1299                 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1300                 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1301                 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1302                 _rtl_query_protection_mode(hw, tcb_desc, info);
1303         } else {
1304                 tcb_desc->use_driver_rate = true;
1305                 tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
1306                 tcb_desc->disable_ratefallback = 1;
1307                 tcb_desc->mac_id = 0;
1308                 tcb_desc->packet_bw = false;
1309         }
1310 #undef SET_RATE_ID
1311 }
1312 EXPORT_SYMBOL(rtl_get_tcb_desc);
1313
1314 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1315 {
1316         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1317         struct rtl_priv *rtlpriv = rtl_priv(hw);
1318         __le16 fc = rtl_get_fc(skb);
1319
1320         if (ieee80211_is_auth(fc)) {
1321                 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1322
1323                 mac->link_state = MAC80211_LINKING;
1324                 /* Dul mac */
1325                 rtlpriv->phy.need_iqk = true;
1326
1327         }
1328
1329         return true;
1330 }
1331 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1332
1333 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1334                                 u8 *bssid, u16 tid);
1335
1336 static void process_agg_start(struct ieee80211_hw *hw,
1337                               struct ieee80211_hdr *hdr, u16 tid)
1338 {
1339         struct rtl_priv *rtlpriv = rtl_priv(hw);
1340         struct ieee80211_rx_status rx_status = { 0 };
1341         struct sk_buff *skb_delba = NULL;
1342
1343         skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1344         if (skb_delba) {
1345                 rx_status.freq = hw->conf.chandef.chan->center_freq;
1346                 rx_status.band = hw->conf.chandef.chan->band;
1347                 rx_status.flag |= RX_FLAG_DECRYPTED;
1348                 rx_status.flag |= RX_FLAG_MACTIME_START;
1349                 rx_status.rate_idx = 0;
1350                 rx_status.signal = 50 + 10;
1351                 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1352                        &rx_status, sizeof(rx_status));
1353                 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1354                               "fake del\n",
1355                               skb_delba->data,
1356                               skb_delba->len);
1357                 ieee80211_rx_irqsafe(hw, skb_delba);
1358         }
1359 }
1360
1361 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1362 {
1363         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1364         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1365         struct rtl_priv *rtlpriv = rtl_priv(hw);
1366         __le16 fc = rtl_get_fc(skb);
1367         u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1368         u8 category;
1369
1370         if (!ieee80211_is_action(fc))
1371                 return true;
1372
1373         category = *act;
1374         act++;
1375         switch (category) {
1376         case ACT_CAT_BA:
1377                 switch (*act) {
1378                 case ACT_ADDBAREQ:
1379                         if (mac->act_scanning)
1380                                 return false;
1381
1382                         rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1383                                 "%s ACT_ADDBAREQ From :%pM\n",
1384                                 is_tx ? "Tx" : "Rx", hdr->addr2);
1385                         RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1386                                 skb->data, skb->len);
1387                         if (!is_tx) {
1388                                 struct ieee80211_sta *sta = NULL;
1389                                 struct rtl_sta_info *sta_entry = NULL;
1390                                 struct rtl_tid_data *tid_data;
1391                                 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1392                                 u16 capab = 0, tid = 0;
1393
1394                                 rcu_read_lock();
1395                                 sta = rtl_find_sta(hw, hdr->addr3);
1396                                 if (sta == NULL) {
1397                                         rtl_dbg(rtlpriv, COMP_SEND | COMP_RECV,
1398                                                 DBG_DMESG, "sta is NULL\n");
1399                                         rcu_read_unlock();
1400                                         return true;
1401                                 }
1402
1403                                 sta_entry =
1404                                         (struct rtl_sta_info *)sta->drv_priv;
1405                                 capab =
1406                                   le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1407                                 tid = (capab &
1408                                        IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1409                                 if (tid >= MAX_TID_COUNT) {
1410                                         rcu_read_unlock();
1411                                         return true;
1412                                 }
1413                                 tid_data = &sta_entry->tids[tid];
1414                                 if (tid_data->agg.rx_agg_state ==
1415                                     RTL_RX_AGG_START)
1416                                         process_agg_start(hw, hdr, tid);
1417                                 rcu_read_unlock();
1418                         }
1419                         break;
1420                 case ACT_ADDBARSP:
1421                         rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1422                                 "%s ACT_ADDBARSP From :%pM\n",
1423                                 is_tx ? "Tx" : "Rx", hdr->addr2);
1424                         break;
1425                 case ACT_DELBA:
1426                         rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1427                                 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1428                         break;
1429                 }
1430                 break;
1431         default:
1432                 break;
1433         }
1434
1435         return true;
1436 }
1437 EXPORT_SYMBOL_GPL(rtl_action_proc);
1438
1439 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1440                              int type)
1441 {
1442         struct ieee80211_hw *hw = rtlpriv->hw;
1443
1444         rtlpriv->ra.is_special_data = true;
1445         if (rtlpriv->cfg->ops->get_btc_status())
1446                 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1447                                         rtlpriv, type);
1448         rtl_lps_leave(hw, false);
1449         ppsc->last_delaylps_stamp_jiffies = jiffies;
1450 }
1451
1452 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1453                                         struct sk_buff *skb, bool is_enc)
1454 {
1455         struct rtl_priv *rtlpriv = rtl_priv(hw);
1456         u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1457         u8 encrypt_header_len = 0;
1458         u8 offset;
1459
1460         switch (rtlpriv->sec.pairwise_enc_algorithm) {
1461         case WEP40_ENCRYPTION:
1462         case WEP104_ENCRYPTION:
1463                 encrypt_header_len = 4;/*WEP_IV_LEN*/
1464                 break;
1465         case TKIP_ENCRYPTION:
1466                 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1467                 break;
1468         case AESCCMP_ENCRYPTION:
1469                 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1470                 break;
1471         default:
1472                 break;
1473         }
1474
1475         offset = mac_hdr_len + SNAP_SIZE;
1476         if (is_enc)
1477                 offset += encrypt_header_len;
1478
1479         return skb->data + offset;
1480 }
1481
1482 /*should call before software enc*/
1483 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1484                        bool is_enc)
1485 {
1486         struct rtl_priv *rtlpriv = rtl_priv(hw);
1487         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1488         __le16 fc = rtl_get_fc(skb);
1489         u16 ether_type;
1490         const u8 *ether_type_ptr;
1491         const struct iphdr *ip;
1492
1493         if (!ieee80211_is_data(fc))
1494                 goto end;
1495
1496         ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1497         ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1498
1499         if (ETH_P_IP == ether_type) {
1500                 ip = (struct iphdr *)((u8 *)ether_type_ptr +
1501                      PROTOC_TYPE_SIZE);
1502                 if (IPPROTO_UDP == ip->protocol) {
1503                         struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1504                                                                (ip->ihl << 2));
1505                         if (((((u8 *)udp)[1] == 68) &&
1506                              (((u8 *)udp)[3] == 67)) ||
1507                             ((((u8 *)udp)[1] == 67) &&
1508                              (((u8 *)udp)[3] == 68))) {
1509                                 /* 68 : UDP BOOTP client
1510                                  * 67 : UDP BOOTP server
1511                                  */
1512                                 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV),
1513                                         DBG_DMESG, "dhcp %s !!\n",
1514                                         (is_tx) ? "Tx" : "Rx");
1515
1516                                 if (is_tx)
1517                                         setup_special_tx(rtlpriv, ppsc,
1518                                                          PACKET_DHCP);
1519
1520                                 return true;
1521                         }
1522                 }
1523         } else if (ETH_P_ARP == ether_type) {
1524                 if (is_tx)
1525                         setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1526
1527                 return true;
1528         } else if (ETH_P_PAE == ether_type) {
1529                 /* EAPOL is seens as in-4way */
1530                 rtlpriv->btcoexist.btc_info.in_4way = true;
1531                 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1532
1533                 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1534                         "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1535
1536                 if (is_tx) {
1537                         rtlpriv->ra.is_special_data = true;
1538                         rtl_lps_leave(hw, false);
1539                         ppsc->last_delaylps_stamp_jiffies = jiffies;
1540
1541                         setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1542                 }
1543
1544                 return true;
1545         } else if (ETH_P_IPV6 == ether_type) {
1546                 /* TODO: Handle any IPv6 cases that need special handling.
1547                  * For now, always return false
1548                  */
1549                 goto end;
1550         }
1551
1552 end:
1553         rtlpriv->ra.is_special_data = false;
1554         return false;
1555 }
1556 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1557
1558 void rtl_tx_ackqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
1559 {
1560         struct rtl_priv *rtlpriv = rtl_priv(hw);
1561         struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1562
1563         __skb_queue_tail(&tx_report->queue, skb);
1564 }
1565 EXPORT_SYMBOL_GPL(rtl_tx_ackqueue);
1566
1567 static void rtl_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
1568                           bool ack)
1569 {
1570         struct rtl_priv *rtlpriv = rtl_priv(hw);
1571         struct ieee80211_tx_info *info;
1572
1573         info = IEEE80211_SKB_CB(skb);
1574         ieee80211_tx_info_clear_status(info);
1575         if (ack) {
1576                 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1577                         "tx report: ack\n");
1578                 info->flags |= IEEE80211_TX_STAT_ACK;
1579         } else {
1580                 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1581                         "tx report: not ack\n");
1582                 info->flags &= ~IEEE80211_TX_STAT_ACK;
1583         }
1584         ieee80211_tx_status_irqsafe(hw, skb);
1585 }
1586
1587 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1588 {
1589         u16 ether_type;
1590         const u8 *ether_type_ptr;
1591         __le16 fc = rtl_get_fc(skb);
1592
1593         ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1594         ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1595
1596         if (ether_type == ETH_P_PAE || ieee80211_is_nullfunc(fc))
1597                 return true;
1598
1599         return false;
1600 }
1601
1602 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw,
1603                                 struct rtlwifi_tx_info *tx_info)
1604 {
1605         struct rtl_priv *rtlpriv = rtl_priv(hw);
1606         struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1607         u16 sn;
1608
1609         /* SW_DEFINE[11:8] are reserved (driver fills zeros)
1610          * SW_DEFINE[7:2] are used by driver
1611          * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros)
1612          */
1613         sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2;
1614
1615         tx_report->last_sent_sn = sn;
1616         tx_report->last_sent_time = jiffies;
1617         tx_info->sn = sn;
1618         tx_info->send_time = tx_report->last_sent_time;
1619         rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1620                 "Send TX-Report sn=0x%X\n", sn);
1621
1622         return sn;
1623 }
1624
1625 void rtl_set_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1626                        struct ieee80211_hw *hw, struct rtlwifi_tx_info *tx_info)
1627 {
1628         if (ptcb_desc->use_spe_rpt) {
1629                 u16 sn = rtl_get_tx_report_sn(hw, tx_info);
1630
1631                 SET_TX_DESC_SPE_RPT(pdesc, 1);
1632                 SET_TX_DESC_SW_DEFINE(pdesc, sn);
1633         }
1634 }
1635 EXPORT_SYMBOL_GPL(rtl_set_tx_report);
1636
1637 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1638 {
1639         struct rtl_priv *rtlpriv = rtl_priv(hw);
1640         struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1641         struct rtlwifi_tx_info *tx_info;
1642         struct sk_buff_head *queue = &tx_report->queue;
1643         struct sk_buff *skb;
1644         u16 sn;
1645         u8 st, retry;
1646
1647         if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) {
1648                 sn = GET_TX_REPORT_SN_V2(tmp_buf);
1649                 st = GET_TX_REPORT_ST_V2(tmp_buf);
1650                 retry = GET_TX_REPORT_RETRY_V2(tmp_buf);
1651         } else {
1652                 sn = GET_TX_REPORT_SN_V1(tmp_buf);
1653                 st = GET_TX_REPORT_ST_V1(tmp_buf);
1654                 retry = GET_TX_REPORT_RETRY_V1(tmp_buf);
1655         }
1656
1657         tx_report->last_recv_sn = sn;
1658
1659         skb_queue_walk(queue, skb) {
1660                 tx_info = rtl_tx_skb_cb_info(skb);
1661                 if (tx_info->sn == sn) {
1662                         skb_unlink(skb, queue);
1663                         rtl_tx_status(hw, skb, st == 0);
1664                         break;
1665                 }
1666         }
1667         rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1668                 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1669                 st, sn, retry);
1670 }
1671 EXPORT_SYMBOL_GPL(rtl_tx_report_handler);
1672
1673 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1674 {
1675         struct rtl_priv *rtlpriv = rtl_priv(hw);
1676         struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1677
1678         if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1679                 return true;
1680
1681         if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1682                 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1683                         "Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n",
1684                         tx_report->last_sent_sn, tx_report->last_recv_sn);
1685                 return true;    /* 3 sec. (timeout) seen as acked */
1686         }
1687
1688         return false;
1689 }
1690
1691 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1692 {
1693         struct rtl_priv *rtlpriv = rtl_priv(hw);
1694         int i;
1695
1696         for (i = 0; i < wait_ms; i++) {
1697                 if (rtl_check_tx_report_acked(hw))
1698                         break;
1699                 usleep_range(1000, 2000);
1700                 rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1701                         "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1702         }
1703 }
1704
1705 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1706                            struct ieee80211_vif *vif,
1707                            enum wireless_mode wirelessmode,
1708                            struct ieee80211_tx_queue_params *param)
1709 {
1710         u32 reg = 0;
1711         u8 sifstime = 10;
1712         u8 slottime = 20;
1713
1714         /* AIFS = AIFSN * slot time + SIFS */
1715         switch (wirelessmode) {
1716         case WIRELESS_MODE_A:
1717         case WIRELESS_MODE_N_24G:
1718         case WIRELESS_MODE_N_5G:
1719         case WIRELESS_MODE_AC_5G:
1720         case WIRELESS_MODE_AC_24G:
1721                 sifstime = 16;
1722                 slottime = 9;
1723                 break;
1724         case WIRELESS_MODE_G:
1725                 slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1726                 break;
1727         default:
1728                 break;
1729         }
1730
1731         reg |= (param->txop & 0x7FF) << 16;
1732         reg |= (fls(param->cw_max) & 0xF) << 12;
1733         reg |= (fls(param->cw_min) & 0xF) << 8;
1734         reg |= (param->aifs & 0x0F) * slottime + sifstime;
1735
1736         return reg;
1737 }
1738 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);
1739
1740 /*********************************************************
1741  *
1742  * functions called by core.c
1743  *
1744  *********************************************************/
1745 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1746                      struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1747 {
1748         struct rtl_priv *rtlpriv = rtl_priv(hw);
1749         struct rtl_tid_data *tid_data;
1750         struct rtl_sta_info *sta_entry = NULL;
1751
1752         if (sta == NULL)
1753                 return -EINVAL;
1754
1755         if (unlikely(tid >= MAX_TID_COUNT))
1756                 return -EINVAL;
1757
1758         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1759         tid_data = &sta_entry->tids[tid];
1760
1761         rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1762                 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1763                 *ssn);
1764
1765         tid_data->agg.agg_state = RTL_AGG_START;
1766
1767         return IEEE80211_AMPDU_TX_START_IMMEDIATE;
1768 }
1769
1770 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1771                     struct ieee80211_sta *sta, u16 tid)
1772 {
1773         struct rtl_priv *rtlpriv = rtl_priv(hw);
1774         struct rtl_sta_info *sta_entry = NULL;
1775
1776         if (sta == NULL)
1777                 return -EINVAL;
1778
1779         rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1780                 "on ra = %pM tid = %d\n", sta->addr, tid);
1781
1782         if (unlikely(tid >= MAX_TID_COUNT))
1783                 return -EINVAL;
1784
1785         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1786         sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1787
1788         ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1789         return 0;
1790 }
1791
1792 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1793                      struct ieee80211_sta *sta, u16 tid)
1794 {
1795         struct rtl_priv *rtlpriv = rtl_priv(hw);
1796         struct rtl_tid_data *tid_data;
1797         struct rtl_sta_info *sta_entry = NULL;
1798         u8 reject_agg;
1799
1800         if (sta == NULL)
1801                 return -EINVAL;
1802
1803         if (unlikely(tid >= MAX_TID_COUNT))
1804                 return -EINVAL;
1805
1806         if (rtlpriv->cfg->ops->get_btc_status()) {
1807                 rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
1808                                                               &reject_agg,
1809                                                               NULL, NULL);
1810                 if (reject_agg)
1811                         return -EINVAL;
1812         }
1813
1814         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1815         tid_data = &sta_entry->tids[tid];
1816
1817         rtl_dbg(rtlpriv, COMP_RECV, DBG_DMESG,
1818                 "on ra = %pM tid = %d\n", sta->addr, tid);
1819
1820         tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1821         return 0;
1822 }
1823
1824 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1825                     struct ieee80211_sta *sta, u16 tid)
1826 {
1827         struct rtl_priv *rtlpriv = rtl_priv(hw);
1828         struct rtl_sta_info *sta_entry = NULL;
1829
1830         if (sta == NULL)
1831                 return -EINVAL;
1832
1833         rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1834                 "on ra = %pM tid = %d\n", sta->addr, tid);
1835
1836         if (unlikely(tid >= MAX_TID_COUNT))
1837                 return -EINVAL;
1838
1839         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1840         sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1841
1842         return 0;
1843 }
1844
1845 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1846                 struct ieee80211_sta *sta, u16 tid)
1847 {
1848         struct rtl_priv *rtlpriv = rtl_priv(hw);
1849         struct rtl_sta_info *sta_entry = NULL;
1850
1851         if (sta == NULL)
1852                 return -EINVAL;
1853
1854         rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1855                 "on ra = %pM tid = %d\n", sta->addr, tid);
1856
1857         if (unlikely(tid >= MAX_TID_COUNT))
1858                 return -EINVAL;
1859
1860         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1861         sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1862
1863         return 0;
1864 }
1865
1866 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
1867 {
1868         struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
1869         u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0;
1870
1871         if (rtlpriv->cfg->ops->get_btc_status())
1872                 btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
1873                                            &ctrl_agg_size, &agg_size);
1874
1875         rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
1876                 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
1877                 reject_agg, ctrl_agg_size, agg_size);
1878
1879         rtlpriv->hw->max_rx_aggregation_subframes =
1880                 (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF_HT);
1881 }
1882 EXPORT_SYMBOL(rtl_rx_ampdu_apply);
1883
1884 /*********************************************************
1885  *
1886  * wq & timer callback functions
1887  *
1888  *********************************************************/
1889 /* this function is used for roaming */
1890 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1891 {
1892         struct rtl_priv *rtlpriv = rtl_priv(hw);
1893         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1894
1895         if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1896                 return;
1897
1898         if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1899                 return;
1900
1901         /* check if this really is a beacon */
1902         if (!ieee80211_is_beacon(hdr->frame_control) &&
1903             !ieee80211_is_probe_resp(hdr->frame_control))
1904                 return;
1905
1906         /* min. beacon length + FCS_LEN */
1907         if (skb->len <= 40 + FCS_LEN)
1908                 return;
1909
1910         /* and only beacons from the associated BSSID, please */
1911         if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1912                 return;
1913
1914         rtlpriv->link_info.bcn_rx_inperiod++;
1915 }
1916 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1917
1918 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
1919 {
1920         struct rtl_priv *rtlpriv = rtl_priv(hw);
1921         struct rtl_bssid_entry *entry, *next;
1922
1923         list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1924                 list_del(&entry->list);
1925                 kfree(entry);
1926                 rtlpriv->scan_list.num--;
1927         }
1928 }
1929
1930 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
1931                                             bool chk_timeout)
1932 {
1933         struct rtl_priv *rtlpriv = rtl_priv(hw);
1934         struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1935         struct sk_buff_head *queue = &tx_report->queue;
1936         struct sk_buff *skb, *tmp;
1937         struct rtlwifi_tx_info *tx_info;
1938
1939         skb_queue_walk_safe(queue, skb, tmp) {
1940                 tx_info = rtl_tx_skb_cb_info(skb);
1941                 if (chk_timeout &&
1942                     time_after(tx_info->send_time + HZ, jiffies))
1943                         continue;
1944                 skb_unlink(skb, queue);
1945                 rtl_tx_status(hw, skb, false);
1946         }
1947 }
1948
1949 void rtl_scan_list_expire(struct ieee80211_hw *hw)
1950 {
1951         struct rtl_priv *rtlpriv = rtl_priv(hw);
1952         struct rtl_bssid_entry *entry, *next;
1953         unsigned long flags;
1954
1955         spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1956
1957         list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1958                 /* 180 seconds */
1959                 if (jiffies_to_msecs(jiffies - entry->age) < 180000)
1960                         continue;
1961
1962                 list_del(&entry->list);
1963                 rtlpriv->scan_list.num--;
1964
1965                 rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
1966                         "BSSID=%pM is expire in scan list (total=%d)\n",
1967                         entry->bssid, rtlpriv->scan_list.num);
1968                 kfree(entry);
1969         }
1970
1971         spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1972
1973         rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1974 }
1975
1976 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
1977 {
1978         struct rtl_priv *rtlpriv = rtl_priv(hw);
1979         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1980         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1981         unsigned long flags;
1982
1983         struct rtl_bssid_entry *entry = NULL, *iter;
1984
1985         /* check if it is scanning */
1986         if (!mac->act_scanning)
1987                 return;
1988
1989         /* check if this really is a beacon */
1990         if (!ieee80211_is_beacon(hdr->frame_control) &&
1991             !ieee80211_is_probe_resp(hdr->frame_control))
1992                 return;
1993
1994         spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1995
1996         list_for_each_entry(iter, &rtlpriv->scan_list.list, list) {
1997                 if (memcmp(iter->bssid, hdr->addr3, ETH_ALEN) == 0) {
1998                         list_del_init(&iter->list);
1999                         entry = iter;
2000                         rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
2001                                 "Update BSSID=%pM to scan list (total=%d)\n",
2002                                 hdr->addr3, rtlpriv->scan_list.num);
2003                         break;
2004                 }
2005         }
2006
2007         if (!entry) {
2008                 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
2009
2010                 if (!entry)
2011                         goto label_err;
2012
2013                 memcpy(entry->bssid, hdr->addr3, ETH_ALEN);
2014                 rtlpriv->scan_list.num++;
2015
2016                 rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
2017                         "Add BSSID=%pM to scan list (total=%d)\n",
2018                         hdr->addr3, rtlpriv->scan_list.num);
2019         }
2020
2021         entry->age = jiffies;
2022
2023         list_add_tail(&entry->list, &rtlpriv->scan_list.list);
2024
2025 label_err:
2026         spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
2027 }
2028 EXPORT_SYMBOL(rtl_collect_scan_list);
2029
2030 static void rtl_watchdog_wq_callback(struct work_struct *work)
2031 {
2032         struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2033                                                   watchdog_wq.work);
2034         struct ieee80211_hw *hw = rtlworks->hw;
2035         struct rtl_priv *rtlpriv = rtl_priv(hw);
2036         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2037         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2038         bool busytraffic = false;
2039         bool tx_busy_traffic = false;
2040         bool rx_busy_traffic = false;
2041         bool higher_busytraffic = false;
2042         bool higher_busyrxtraffic = false;
2043         u8 idx, tid;
2044         u32 rx_cnt_inp4eriod = 0;
2045         u32 tx_cnt_inp4eriod = 0;
2046         u32 aver_rx_cnt_inperiod = 0;
2047         u32 aver_tx_cnt_inperiod = 0;
2048         u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
2049         u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
2050
2051         if (is_hal_stop(rtlhal))
2052                 return;
2053
2054         /* <1> Determine if action frame is allowed */
2055         if (mac->link_state > MAC80211_NOLINK) {
2056                 if (mac->cnt_after_linked < 20)
2057                         mac->cnt_after_linked++;
2058         } else {
2059                 mac->cnt_after_linked = 0;
2060         }
2061
2062         /* <2> to check if traffic busy, if
2063          * busytraffic we don't change channel
2064          */
2065         if (mac->link_state >= MAC80211_LINKED) {
2066                 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
2067                 for (idx = 0; idx <= 2; idx++) {
2068                         rtlpriv->link_info.num_rx_in4period[idx] =
2069                             rtlpriv->link_info.num_rx_in4period[idx + 1];
2070                         rtlpriv->link_info.num_tx_in4period[idx] =
2071                             rtlpriv->link_info.num_tx_in4period[idx + 1];
2072                 }
2073                 rtlpriv->link_info.num_rx_in4period[3] =
2074                     rtlpriv->link_info.num_rx_inperiod;
2075                 rtlpriv->link_info.num_tx_in4period[3] =
2076                     rtlpriv->link_info.num_tx_inperiod;
2077                 for (idx = 0; idx <= 3; idx++) {
2078                         rx_cnt_inp4eriod +=
2079                             rtlpriv->link_info.num_rx_in4period[idx];
2080                         tx_cnt_inp4eriod +=
2081                             rtlpriv->link_info.num_tx_in4period[idx];
2082                 }
2083                 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
2084                 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
2085
2086                 /* (2) check traffic busy */
2087                 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
2088                         busytraffic = true;
2089                         if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
2090                                 rx_busy_traffic = true;
2091                         else
2092                                 tx_busy_traffic = false;
2093                 }
2094
2095                 /* Higher Tx/Rx data. */
2096                 if (aver_rx_cnt_inperiod > 4000 ||
2097                     aver_tx_cnt_inperiod > 4000) {
2098                         higher_busytraffic = true;
2099
2100                         /* Extremely high Rx data. */
2101                         if (aver_rx_cnt_inperiod > 5000)
2102                                 higher_busyrxtraffic = true;
2103                 }
2104
2105                 /* check every tid's tx traffic */
2106                 for (tid = 0; tid <= 7; tid++) {
2107                         for (idx = 0; idx <= 2; idx++)
2108                                 rtlpriv->link_info.tidtx_in4period[tid][idx] =
2109                                         rtlpriv->link_info.tidtx_in4period[tid]
2110                                         [idx + 1];
2111                         rtlpriv->link_info.tidtx_in4period[tid][3] =
2112                                 rtlpriv->link_info.tidtx_inperiod[tid];
2113
2114                         for (idx = 0; idx <= 3; idx++)
2115                                 tidtx_inp4eriod[tid] +=
2116                                    rtlpriv->link_info.tidtx_in4period[tid][idx];
2117                         aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
2118                         if (aver_tidtx_inperiod[tid] > 5000)
2119                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
2120                                                                         true;
2121                         else
2122                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
2123                                                                         false;
2124                 }
2125
2126                 /* PS is controlled by coex. */
2127                 if (rtlpriv->cfg->ops->get_btc_status() &&
2128                     rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
2129                         goto label_lps_done;
2130
2131                 if (rtlpriv->link_info.num_rx_inperiod +
2132                       rtlpriv->link_info.num_tx_inperiod > 8 ||
2133                     rtlpriv->link_info.num_rx_inperiod > 2)
2134                         rtl_lps_leave(hw, true);
2135                 else
2136                         rtl_lps_enter(hw, true);
2137
2138 label_lps_done:
2139                 ;
2140         }
2141
2142         for (tid = 0; tid <= 7; tid++)
2143                 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
2144
2145         rtlpriv->link_info.busytraffic = busytraffic;
2146         rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
2147         rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
2148         rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
2149         rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
2150
2151         rtlpriv->stats.txbytesunicast_inperiod =
2152                 rtlpriv->stats.txbytesunicast -
2153                 rtlpriv->stats.txbytesunicast_last;
2154         rtlpriv->stats.rxbytesunicast_inperiod =
2155                 rtlpriv->stats.rxbytesunicast -
2156                 rtlpriv->stats.rxbytesunicast_last;
2157         rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2158         rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2159
2160         rtlpriv->stats.txbytesunicast_inperiod_tp =
2161                 (u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2162                 1024 / 1024);
2163         rtlpriv->stats.rxbytesunicast_inperiod_tp =
2164                 (u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2165                 1024 / 1024);
2166
2167         /* <3> DM */
2168         if (!rtlpriv->cfg->mod_params->disable_watchdog)
2169                 rtlpriv->cfg->ops->dm_watchdog(hw);
2170
2171         /* <4> roaming */
2172         if (mac->link_state == MAC80211_LINKED &&
2173             mac->opmode == NL80211_IFTYPE_STATION) {
2174                 if ((rtlpriv->link_info.bcn_rx_inperiod +
2175                     rtlpriv->link_info.num_rx_inperiod) == 0) {
2176                         rtlpriv->link_info.roam_times++;
2177                         rtl_dbg(rtlpriv, COMP_ERR, DBG_DMESG,
2178                                 "AP off for %d s\n",
2179                                 (rtlpriv->link_info.roam_times * 2));
2180
2181                         /* if we can't recv beacon for 10s,
2182                          * we should reconnect this AP
2183                          */
2184                         if (rtlpriv->link_info.roam_times >= 5) {
2185                                 pr_err("AP off, try to reconnect now\n");
2186                                 rtlpriv->link_info.roam_times = 0;
2187                                 ieee80211_connection_loss(
2188                                         rtlpriv->mac80211.vif);
2189                         }
2190                 } else {
2191                         rtlpriv->link_info.roam_times = 0;
2192                 }
2193         }
2194
2195         if (rtlpriv->cfg->ops->get_btc_status())
2196                 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2197
2198         if (rtlpriv->btcoexist.btc_info.in_4way) {
2199                 if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2200                                msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2201                         rtlpriv->btcoexist.btc_info.in_4way = false;
2202         }
2203
2204         rtlpriv->link_info.num_rx_inperiod = 0;
2205         rtlpriv->link_info.num_tx_inperiod = 0;
2206         rtlpriv->link_info.bcn_rx_inperiod = 0;
2207
2208         /* <6> scan list */
2209         rtl_scan_list_expire(hw);
2210
2211         /* <7> check ack queue */
2212         rtl_free_entries_from_ack_queue(hw, true);
2213 }
2214
2215 void rtl_watch_dog_timer_callback(struct timer_list *t)
2216 {
2217         struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
2218
2219         queue_delayed_work(rtlpriv->works.rtl_wq,
2220                            &rtlpriv->works.watchdog_wq, 0);
2221
2222         mod_timer(&rtlpriv->works.watchdog_timer,
2223                   jiffies + MSECS(RTL_WATCH_DOG_TIME));
2224 }
2225
2226 static void rtl_fwevt_wq_callback(struct work_struct *work)
2227 {
2228         struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2229                                                   fwevt_wq.work);
2230         struct ieee80211_hw *hw = rtlworks->hw;
2231         struct rtl_priv *rtlpriv = rtl_priv(hw);
2232
2233         rtlpriv->cfg->ops->c2h_command_handle(hw);
2234 }
2235
2236 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2237                                     struct sk_buff *skb);
2238
2239 static bool rtl_c2h_fast_cmd(struct ieee80211_hw *hw, struct sk_buff *skb)
2240 {
2241         u8 cmd_id = GET_C2H_CMD_ID(skb->data);
2242
2243         switch (cmd_id) {
2244         case C2H_BT_MP:
2245                 return true;
2246         default:
2247                 break;
2248         }
2249
2250         return false;
2251 }
2252
2253 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
2254 {
2255         struct rtl_priv *rtlpriv = rtl_priv(hw);
2256
2257         if (rtl_c2h_fast_cmd(hw, skb)) {
2258                 rtl_c2h_content_parsing(hw, skb);
2259                 kfree_skb(skb);
2260                 return;
2261         }
2262
2263         /* enqueue */
2264         skb_queue_tail(&rtlpriv->c2hcmd_queue, skb);
2265
2266         /* wake up wq */
2267         queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2268 }
2269 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
2270
2271 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2272                                     struct sk_buff *skb)
2273 {
2274         struct rtl_priv *rtlpriv = rtl_priv(hw);
2275         struct rtl_hal_ops *hal_ops = rtlpriv->cfg->ops;
2276         const struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
2277         u8 cmd_id, cmd_len;
2278         u8 *cmd_buf = NULL;
2279
2280         cmd_id = GET_C2H_CMD_ID(skb->data);
2281         cmd_len = skb->len - C2H_DATA_OFFSET;
2282         cmd_buf = GET_C2H_DATA_PTR(skb->data);
2283
2284         switch (cmd_id) {
2285         case C2H_DBG:
2286                 rtl_dbg(rtlpriv, COMP_FW, DBG_LOUD, "[C2H], C2H_DBG!!\n");
2287                 break;
2288         case C2H_TXBF:
2289                 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2290                         "[C2H], C2H_TXBF!!\n");
2291                 break;
2292         case C2H_TX_REPORT:
2293                 rtl_tx_report_handler(hw, cmd_buf, cmd_len);
2294                 break;
2295         case C2H_RA_RPT:
2296                 if (hal_ops->c2h_ra_report_handler)
2297                         hal_ops->c2h_ra_report_handler(hw, cmd_buf, cmd_len);
2298                 break;
2299         case C2H_BT_INFO:
2300                 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2301                         "[C2H], C2H_BT_INFO!!\n");
2302                 if (rtlpriv->cfg->ops->get_btc_status())
2303                         btc_ops->btc_btinfo_notify(rtlpriv, cmd_buf, cmd_len);
2304                 break;
2305         case C2H_BT_MP:
2306                 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2307                         "[C2H], C2H_BT_MP!!\n");
2308                 if (rtlpriv->cfg->ops->get_btc_status())
2309                         btc_ops->btc_btmpinfo_notify(rtlpriv, cmd_buf, cmd_len);
2310                 break;
2311         default:
2312                 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2313                         "[C2H], Unknown packet!! cmd_id(%#X)!\n", cmd_id);
2314                 break;
2315         }
2316 }
2317
2318 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2319 {
2320         struct rtl_priv *rtlpriv = rtl_priv(hw);
2321         struct sk_buff *skb;
2322         int i;
2323
2324         for (i = 0; i < 200; i++) {
2325                 /* dequeue a task */
2326                 skb = skb_dequeue(&rtlpriv->c2hcmd_queue);
2327
2328                 /* do it */
2329                 if (!skb)
2330                         break;
2331
2332                 rtl_dbg(rtlpriv, COMP_FW, DBG_DMESG, "C2H rx_desc_shift=%d\n",
2333                         *((u8 *)skb->cb));
2334                 RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_DMESG,
2335                               "C2H data: ", skb->data, skb->len);
2336
2337                 if (exec)
2338                         rtl_c2h_content_parsing(hw, skb);
2339
2340                 /* free */
2341                 dev_kfree_skb_any(skb);
2342         }
2343 }
2344
2345 static void rtl_c2hcmd_wq_callback(struct work_struct *work)
2346 {
2347         struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2348                                                   c2hcmd_wq.work);
2349         struct ieee80211_hw *hw = rtlworks->hw;
2350
2351         rtl_c2hcmd_launcher(hw, 1);
2352 }
2353
2354 /*********************************************************
2355  *
2356  * frame process functions
2357  *
2358  *********************************************************/
2359 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2360 {
2361         struct ieee80211_mgmt *mgmt = (void *)data;
2362         u8 *pos, *end;
2363
2364         pos = (u8 *)mgmt->u.beacon.variable;
2365         end = data + len;
2366         while (pos < end) {
2367                 if (pos + 2 + pos[1] > end)
2368                         return NULL;
2369
2370                 if (pos[0] == ie)
2371                         return pos;
2372
2373                 pos += 2 + pos[1];
2374         }
2375         return NULL;
2376 }
2377
2378 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2379 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
2380 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2381                                      enum ieee80211_smps_mode smps,
2382                                      u8 *da, u8 *bssid)
2383 {
2384         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2385         struct sk_buff *skb;
2386         struct ieee80211_mgmt *action_frame;
2387
2388         /* 27 = header + category + action + smps mode */
2389         skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2390         if (!skb)
2391                 return NULL;
2392
2393         skb_reserve(skb, hw->extra_tx_headroom);
2394         action_frame = skb_put_zero(skb, 27);
2395         memcpy(action_frame->da, da, ETH_ALEN);
2396         memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2397         memcpy(action_frame->bssid, bssid, ETH_ALEN);
2398         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2399                                                   IEEE80211_STYPE_ACTION);
2400         action_frame->u.action.category = WLAN_CATEGORY_HT;
2401         action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2402         switch (smps) {
2403         case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2404         case IEEE80211_SMPS_NUM_MODES:/* 4 */
2405                 WARN_ON(1);
2406                 fallthrough;
2407         case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2408                 action_frame->u.action.u.ht_smps.smps_control =
2409                                 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2410                 break;
2411         case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2412                 action_frame->u.action.u.ht_smps.smps_control =
2413                                 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2414                 break;
2415         case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2416                 action_frame->u.action.u.ht_smps.smps_control =
2417                                 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2418                 break;
2419         }
2420
2421         return skb;
2422 }
2423
2424 int rtl_send_smps_action(struct ieee80211_hw *hw,
2425                          struct ieee80211_sta *sta,
2426                          enum ieee80211_smps_mode smps)
2427 {
2428         struct rtl_priv *rtlpriv = rtl_priv(hw);
2429         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2430         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2431         struct sk_buff *skb = NULL;
2432         struct rtl_tcb_desc tcb_desc;
2433         u8 bssid[ETH_ALEN] = {0};
2434
2435         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2436
2437         if (rtlpriv->mac80211.act_scanning)
2438                 goto err_free;
2439
2440         if (!sta)
2441                 goto err_free;
2442
2443         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2444                 goto err_free;
2445
2446         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2447                 goto err_free;
2448
2449         if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2450                 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2451         else
2452                 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2453
2454         skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2455         /* this is a type = mgmt * stype = action frame */
2456         if (skb) {
2457                 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2458                 struct rtl_sta_info *sta_entry =
2459                         (struct rtl_sta_info *) sta->drv_priv;
2460                 sta_entry->mimo_ps = smps;
2461                 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2462
2463                 info->control.rates[0].idx = 0;
2464                 info->band = hw->conf.chandef.chan->band;
2465                 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2466         }
2467         return 1;
2468
2469 err_free:
2470         return 0;
2471 }
2472 EXPORT_SYMBOL(rtl_send_smps_action);
2473
2474 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2475 {
2476         struct rtl_priv *rtlpriv = rtl_priv(hw);
2477         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2478         enum io_type iotype;
2479
2480         if (!is_hal_stop(rtlhal)) {
2481                 switch (operation) {
2482                 case SCAN_OPT_BACKUP:
2483                         iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2484                         rtlpriv->cfg->ops->set_hw_reg(hw,
2485                                                       HW_VAR_IO_CMD,
2486                                                       (u8 *)&iotype);
2487                         break;
2488                 case SCAN_OPT_RESTORE:
2489                         iotype = IO_CMD_RESUME_DM_BY_SCAN;
2490                         rtlpriv->cfg->ops->set_hw_reg(hw,
2491                                                       HW_VAR_IO_CMD,
2492                                                       (u8 *)&iotype);
2493                         break;
2494                 default:
2495                         pr_err("Unknown Scan Backup operation.\n");
2496                         break;
2497                 }
2498         }
2499 }
2500 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
2501
2502 /* because mac80211 have issues when can receive del ba
2503  * so here we just make a fake del_ba if we receive a ba_req
2504  * but rx_agg was opened to let mac80211 release some ba
2505  * related resources, so please this del_ba for tx
2506  */
2507 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2508                                 u8 *sa, u8 *bssid, u16 tid)
2509 {
2510         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2511         struct sk_buff *skb;
2512         struct ieee80211_mgmt *action_frame;
2513         u16 params;
2514
2515         /* 27 = header + category + action + smps mode */
2516         skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2517         if (!skb)
2518                 return NULL;
2519
2520         skb_reserve(skb, hw->extra_tx_headroom);
2521         action_frame = skb_put_zero(skb, 34);
2522         memcpy(action_frame->sa, sa, ETH_ALEN);
2523         memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2524         memcpy(action_frame->bssid, bssid, ETH_ALEN);
2525         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2526                                                   IEEE80211_STYPE_ACTION);
2527         action_frame->u.action.category = WLAN_CATEGORY_BACK;
2528         action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2529         params = (u16)(1 << 11);        /* bit 11 initiator */
2530         params |= (u16)(tid << 12);     /* bit 15:12 TID number */
2531
2532         action_frame->u.action.u.delba.params = cpu_to_le16(params);
2533         action_frame->u.action.u.delba.reason_code =
2534                 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2535
2536         return skb;
2537 }
2538
2539 /*********************************************************
2540  *
2541  * IOT functions
2542  *
2543  *********************************************************/
2544 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2545                                   struct octet_string vendor_ie)
2546 {
2547         struct rtl_priv *rtlpriv = rtl_priv(hw);
2548         bool matched = false;
2549         static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2550         static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2551         static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2552         static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2553         static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2554         static u8 racap[] = { 0x00, 0x0c, 0x43 };
2555         static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2556         static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2557
2558         if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2559                 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2560                 rtlpriv->mac80211.vendor = PEER_ATH;
2561                 matched = true;
2562         } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2563                 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2564                 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2565                 rtlpriv->mac80211.vendor = PEER_BROAD;
2566                 matched = true;
2567         } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2568                 rtlpriv->mac80211.vendor = PEER_RAL;
2569                 matched = true;
2570         } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2571                 rtlpriv->mac80211.vendor = PEER_CISCO;
2572                 matched = true;
2573         } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2574                 rtlpriv->mac80211.vendor = PEER_MARV;
2575                 matched = true;
2576         }
2577
2578         return matched;
2579 }
2580
2581 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2582                 unsigned int len)
2583 {
2584         struct ieee80211_mgmt *mgmt = (void *)data;
2585         struct octet_string vendor_ie;
2586         u8 *pos, *end;
2587
2588         pos = (u8 *)mgmt->u.beacon.variable;
2589         end = data + len;
2590         while (pos < end) {
2591                 if (pos[0] == 221) {
2592                         vendor_ie.length = pos[1];
2593                         vendor_ie.octet = &pos[2];
2594                         if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2595                                 return true;
2596                 }
2597
2598                 if (pos + 2 + pos[1] > end)
2599                         return false;
2600
2601                 pos += 2 + pos[1];
2602         }
2603         return false;
2604 }
2605
2606 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2607 {
2608         struct rtl_priv *rtlpriv = rtl_priv(hw);
2609         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2610         struct ieee80211_hdr *hdr = (void *)data;
2611         u32 vendor = PEER_UNKNOWN;
2612
2613         static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2614         static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2615         static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2616         static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2617         static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2618         static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2619         static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2620         static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2621         static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2622         static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2623         static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2624         static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2625         static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2626         static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2627         static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2628         static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2629
2630         if (mac->opmode != NL80211_IFTYPE_STATION)
2631                 return;
2632
2633         if (mac->link_state == MAC80211_NOLINK) {
2634                 mac->vendor = PEER_UNKNOWN;
2635                 return;
2636         }
2637
2638         if (mac->cnt_after_linked > 2)
2639                 return;
2640
2641         /* check if this really is a beacon */
2642         if (!ieee80211_is_beacon(hdr->frame_control))
2643                 return;
2644
2645         /* min. beacon length + FCS_LEN */
2646         if (len <= 40 + FCS_LEN)
2647                 return;
2648
2649         /* and only beacons from the associated BSSID, please */
2650         if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2651                 return;
2652
2653         if (rtl_find_221_ie(hw, data, len))
2654                 vendor = mac->vendor;
2655
2656         if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2657                 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2658                 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2659                 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2660                 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2661                 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2662                 vendor == PEER_ATH) {
2663                 vendor = PEER_ATH;
2664                 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2665         } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2666                 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2667                 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2668                 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2669                 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2670                 vendor == PEER_RAL) {
2671                 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2672                 vendor = PEER_RAL;
2673         } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2674                 vendor == PEER_CISCO) {
2675                 vendor = PEER_CISCO;
2676                 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2677         } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2678                 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2679                 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2680                 vendor == PEER_BROAD) {
2681                 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2682                 vendor = PEER_BROAD;
2683         } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2684                 vendor == PEER_MARV) {
2685                 vendor = PEER_MARV;
2686                 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2687         }
2688
2689         mac->vendor = vendor;
2690 }
2691 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2692
2693 MODULE_AUTHOR("lizhaoming       <chaoming_li@realsil.com.cn>");
2694 MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
2695 MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
2696 MODULE_LICENSE("GPL");
2697 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2698
2699 struct rtl_global_var rtl_global_var = {};
2700 EXPORT_SYMBOL_GPL(rtl_global_var);
2701
2702 static int __init rtl_core_module_init(void)
2703 {
2704         BUILD_BUG_ON(TX_PWR_BY_RATE_NUM_RATE < TX_PWR_BY_RATE_NUM_SECTION);
2705         BUILD_BUG_ON(MAX_RATE_SECTION_NUM != MAX_RATE_SECTION);
2706         BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_24G != MAX_RATE_SECTION);
2707         BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_5G != (MAX_RATE_SECTION - 1));
2708
2709         if (rtl_rate_control_register())
2710                 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2711
2712         /* add debugfs */
2713         rtl_debugfs_add_topdir();
2714
2715         /* init some global vars */
2716         INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2717         spin_lock_init(&rtl_global_var.glb_list_lock);
2718
2719         return 0;
2720 }
2721
2722 static void __exit rtl_core_module_exit(void)
2723 {
2724         /*RC*/
2725         rtl_rate_control_unregister();
2726
2727         /* remove debugfs */
2728         rtl_debugfs_remove_topdir();
2729 }
2730
2731 module_init(rtl_core_module_init);
2732 module_exit(rtl_core_module_exit);