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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2012  Realtek Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * The full GNU General Public License is included in this distribution in the
  15  * file called LICENSE.
  16  *
  17  * Contact Information:
  18  * wlanfae <wlanfae@realtek.com>
  19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  20  * Hsinchu 300, Taiwan.
  21  *
  22  * Larry Finger <Larry.Finger@lwfinger.net>
  23  *
  24  *****************************************************************************/
  25
  26 #include "wifi.h"
  27 #include "rc.h"
  28 #include "base.h"
  29 #include "efuse.h"
  30 #include "cam.h"
  31 #include "ps.h"
  32 #include "regd.h"
  33 #include "pci.h"
  34 #include <linux/ip.h>
  35 #include <linux/module.h>
  36 #include <linux/udp.h>
  37
  38 /*
  39  *NOTICE!!!: This file will be very big, we should
  40  *keep it clear under following roles:
  41  *
  42  *This file include following parts, so, if you add new
  43  *functions into this file, please check which part it
  44  *should includes. or check if you should add new part
  45  *for this file:
  46  *
  47  *1) mac80211 init functions
  48  *2) tx information functions
  49  *3) functions called by core.c
  50  *4) wq & timer callback functions
  51  *5) frame process functions
  52  *6) IOT functions
  53  *7) sysfs functions
  54  *8) vif functions
  55  *9) ...
  56  */
  57
  58 /*********************************************************
  59  *
  60  * mac80211 init functions
  61  *
  62  *********************************************************/
  63 static struct ieee80211_channel rtl_channeltable_2g[] = {
  64         {.center_freq = 2412, .hw_value = 1,},
  65         {.center_freq = 2417, .hw_value = 2,},
  66         {.center_freq = 2422, .hw_value = 3,},
  67         {.center_freq = 2427, .hw_value = 4,},
  68         {.center_freq = 2432, .hw_value = 5,},
  69         {.center_freq = 2437, .hw_value = 6,},
  70         {.center_freq = 2442, .hw_value = 7,},
  71         {.center_freq = 2447, .hw_value = 8,},
  72         {.center_freq = 2452, .hw_value = 9,},
  73         {.center_freq = 2457, .hw_value = 10,},
  74         {.center_freq = 2462, .hw_value = 11,},
  75         {.center_freq = 2467, .hw_value = 12,},
  76         {.center_freq = 2472, .hw_value = 13,},
  77         {.center_freq = 2484, .hw_value = 14,},
  78 };
  79
  80 static struct ieee80211_channel rtl_channeltable_5g[] = {
  81         {.center_freq = 5180, .hw_value = 36,},
  82         {.center_freq = 5200, .hw_value = 40,},
  83         {.center_freq = 5220, .hw_value = 44,},
  84         {.center_freq = 5240, .hw_value = 48,},
  85         {.center_freq = 5260, .hw_value = 52,},
  86         {.center_freq = 5280, .hw_value = 56,},
  87         {.center_freq = 5300, .hw_value = 60,},
  88         {.center_freq = 5320, .hw_value = 64,},
  89         {.center_freq = 5500, .hw_value = 100,},
  90         {.center_freq = 5520, .hw_value = 104,},
  91         {.center_freq = 5540, .hw_value = 108,},
  92         {.center_freq = 5560, .hw_value = 112,},
  93         {.center_freq = 5580, .hw_value = 116,},
  94         {.center_freq = 5600, .hw_value = 120,},
  95         {.center_freq = 5620, .hw_value = 124,},
  96         {.center_freq = 5640, .hw_value = 128,},
  97         {.center_freq = 5660, .hw_value = 132,},
  98         {.center_freq = 5680, .hw_value = 136,},
  99         {.center_freq = 5700, .hw_value = 140,},
 100         {.center_freq = 5745, .hw_value = 149,},
 101         {.center_freq = 5765, .hw_value = 153,},
 102         {.center_freq = 5785, .hw_value = 157,},
 103         {.center_freq = 5805, .hw_value = 161,},
 104         {.center_freq = 5825, .hw_value = 165,},
 105 };
 106
 107 static struct ieee80211_rate rtl_ratetable_2g[] = {
 108         {.bitrate = 10, .hw_value = 0x00,},
 109         {.bitrate = 20, .hw_value = 0x01,},
 110         {.bitrate = 55, .hw_value = 0x02,},
 111         {.bitrate = 110, .hw_value = 0x03,},
 112         {.bitrate = 60, .hw_value = 0x04,},
 113         {.bitrate = 90, .hw_value = 0x05,},
 114         {.bitrate = 120, .hw_value = 0x06,},
 115         {.bitrate = 180, .hw_value = 0x07,},
 116         {.bitrate = 240, .hw_value = 0x08,},
 117         {.bitrate = 360, .hw_value = 0x09,},
 118         {.bitrate = 480, .hw_value = 0x0a,},
 119         {.bitrate = 540, .hw_value = 0x0b,},
 120 };
 121
 122 static struct ieee80211_rate rtl_ratetable_5g[] = {
 123         {.bitrate = 60, .hw_value = 0x04,},
 124         {.bitrate = 90, .hw_value = 0x05,},
 125         {.bitrate = 120, .hw_value = 0x06,},
 126         {.bitrate = 180, .hw_value = 0x07,},
 127         {.bitrate = 240, .hw_value = 0x08,},
 128         {.bitrate = 360, .hw_value = 0x09,},
 129         {.bitrate = 480, .hw_value = 0x0a,},
 130         {.bitrate = 540, .hw_value = 0x0b,},
 131 };
 132
 133 static const struct ieee80211_supported_band rtl_band_2ghz = {
 134         .band = IEEE80211_BAND_2GHZ,
 135
 136         .channels = rtl_channeltable_2g,
 137         .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
 138
 139         .bitrates = rtl_ratetable_2g,
 140         .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
 141
 142         .ht_cap = {0},
 143 };
 144
 145 static struct ieee80211_supported_band rtl_band_5ghz = {
 146         .band = IEEE80211_BAND_5GHZ,
 147
 148         .channels = rtl_channeltable_5g,
 149         .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
 150
 151         .bitrates = rtl_ratetable_5g,
 152         .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
 153
 154         .ht_cap = {0},
 155 };
 156
 157 static const u8 tid_to_ac[] = {
 158         2, /* IEEE80211_AC_BE */
 159         3, /* IEEE80211_AC_BK */
 160         3, /* IEEE80211_AC_BK */
 161         2, /* IEEE80211_AC_BE */
 162         1, /* IEEE80211_AC_VI */
 163         1, /* IEEE80211_AC_VI */
 164         0, /* IEEE80211_AC_VO */
 165         0, /* IEEE80211_AC_VO */
 166 };
 167
 168 u8 rtl_tid_to_ac(u8 tid)
 169 {
 170         return tid_to_ac[tid];
 171 }
 172 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
 173
 174 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
 175                                   struct ieee80211_sta_ht_cap *ht_cap)
 176 {
 177         struct rtl_priv *rtlpriv = rtl_priv(hw);
 178         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 179
 180         ht_cap->ht_supported = true;
 181         ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 182             IEEE80211_HT_CAP_SGI_40 |
 183             IEEE80211_HT_CAP_SGI_20 |
 184             IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
 185
 186         if (rtlpriv->rtlhal.disable_amsdu_8k)
 187                 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
 188
 189         /*
 190          *Maximum length of AMPDU that the STA can receive.
 191          *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
 192          */
 193         ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 194
 195         /*Minimum MPDU start spacing , */
 196         ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
 197
 198         ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 199
 200         /*hw->wiphy->bands[IEEE80211_BAND_2GHZ]
 201          *base on ant_num
 202          *rx_mask: RX mask
 203          *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
 204          *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
 205          *if rx_ant >= 3 rx_mask[2]= 0xff;
 206          *if BW_40 rx_mask[4]= 0x01;
 207          *highest supported RX rate
 208          */
 209         if (rtlpriv->dm.supp_phymode_switch) {
 210                 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
 211                          "Support phy mode switch\n");
 212
 213                 ht_cap->mcs.rx_mask[0] = 0xFF;
 214                 ht_cap->mcs.rx_mask[1] = 0xFF;
 215                 ht_cap->mcs.rx_mask[4] = 0x01;
 216
 217                 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 218         } else {
 219                 if (get_rf_type(rtlphy) == RF_1T2R ||
 220                     get_rf_type(rtlphy) == RF_2T2R) {
 221                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 222                                  "1T2R or 2T2R\n");
 223                         ht_cap->mcs.rx_mask[0] = 0xFF;
 224                         ht_cap->mcs.rx_mask[1] = 0xFF;
 225                         ht_cap->mcs.rx_mask[4] = 0x01;
 226
 227                         ht_cap->mcs.rx_highest =
 228                                  cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 229                 } else if (get_rf_type(rtlphy) == RF_1T1R) {
 230                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
 231
 232                         ht_cap->mcs.rx_mask[0] = 0xFF;
 233                         ht_cap->mcs.rx_mask[1] = 0x00;
 234                         ht_cap->mcs.rx_mask[4] = 0x01;
 235
 236                         ht_cap->mcs.rx_highest =
 237                                  cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
 238                 }
 239         }
 240 }
 241
 242 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
 243                                    struct ieee80211_sta_vht_cap *vht_cap)
 244 {
 245         struct rtl_priv *rtlpriv = rtl_priv(hw);
 246         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 247
 248         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
 249                 u16 mcs_map;
 250
 251                 vht_cap->vht_supported = true;
 252                 vht_cap->cap =
 253                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
 254                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
 255                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 256                         IEEE80211_VHT_CAP_SHORT_GI_80 |
 257                         IEEE80211_VHT_CAP_TXSTBC |
 258                         IEEE80211_VHT_CAP_RXSTBC_1 |
 259                         IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 260                         IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 261                         IEEE80211_VHT_CAP_HTC_VHT |
 262                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 263                         IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 264                         IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 265                         0;
 266
 267                 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 268                         IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
 269                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 270                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 271                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 272                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 273                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 274                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 275
 276                 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 277                 vht_cap->vht_mcs.rx_highest =
 278                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 279                 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 280                 vht_cap->vht_mcs.tx_highest =
 281                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 282         } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
 283                 u16 mcs_map;
 284
 285                 vht_cap->vht_supported = true;
 286                 vht_cap->cap =
 287                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
 288                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
 289                         IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 290                         IEEE80211_VHT_CAP_SHORT_GI_80 |
 291                         IEEE80211_VHT_CAP_TXSTBC |
 292                         IEEE80211_VHT_CAP_RXSTBC_1 |
 293                         IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 294                         IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 295                         IEEE80211_VHT_CAP_HTC_VHT |
 296                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 297                         IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 298                         IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 299                         0;
 300
 301                 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 302                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
 303                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 304                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 305                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 306                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 307                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 308                         IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 309
 310                 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 311                 vht_cap->vht_mcs.rx_highest =
 312                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 313                 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 314                 vht_cap->vht_mcs.tx_highest =
 315                         cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 316         }
 317 }
 318
 319 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
 320 {
 321         struct rtl_priv *rtlpriv = rtl_priv(hw);
 322         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 323         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 324         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 325         struct ieee80211_supported_band *sband;
 326
 327         if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
 328             rtlhal->bandset == BAND_ON_BOTH) {
 329                 /* 1: 2.4 G bands */
 330                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 331                 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
 332
 333                 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
 334                  * to default value(1T1R) */
 335                 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
 336                                 sizeof(struct ieee80211_supported_band));
 337
 338                 /* <3> init ht cap base on ant_num */
 339                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 340
 341                 /* <4> set mac->sband to wiphy->sband */
 342                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
 343
 344                 /* 2: 5 G bands */
 345                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 346                 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
 347
 348                 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
 349                  * to default value(1T1R) */
 350                 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
 351                                 sizeof(struct ieee80211_supported_band));
 352
 353                 /* <3> init ht cap base on ant_num */
 354                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 355
 356                 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 357                 /* <4> set mac->sband to wiphy->sband */
 358                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
 359         } else {
 360                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 361                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 362                         sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
 363
 364                         /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
 365                          * to default value(1T1R) */
 366                         memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
 367                                &rtl_band_2ghz,
 368                                sizeof(struct ieee80211_supported_band));
 369
 370                         /* <3> init ht cap base on ant_num */
 371                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 372
 373                         /* <4> set mac->sband to wiphy->sband */
 374                         hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
 375                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 376                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 377                         sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
 378
 379                         /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
 380                          * to default value(1T1R) */
 381                         memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
 382                                &rtl_band_5ghz,
 383                                sizeof(struct ieee80211_supported_band));
 384
 385                         /* <3> init ht cap base on ant_num */
 386                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 387
 388                         _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 389                         /* <4> set mac->sband to wiphy->sband */
 390                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
 391                 } else {
 392                         RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
 393                                  rtlhal->current_bandtype);
 394                 }
 395         }
 396         /* <5> set hw caps */
 397         ieee80211_hw_set(hw, SIGNAL_DBM);
 398         ieee80211_hw_set(hw, RX_INCLUDES_FCS);
 399         ieee80211_hw_set(hw, AMPDU_AGGREGATION);
 400         ieee80211_hw_set(hw, CONNECTION_MONITOR);
 401         ieee80211_hw_set(hw, MFP_CAPABLE);
 402         ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
 403
 404         /* swlps or hwlps has been set in diff chip in init_sw_vars */
 405         if (rtlpriv->psc.swctrl_lps) {
 406                 ieee80211_hw_set(hw, SUPPORTS_PS);
 407                 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
 408         }
 409         hw->wiphy->interface_modes =
 410             BIT(NL80211_IFTYPE_AP) |
 411             BIT(NL80211_IFTYPE_STATION) |
 412             BIT(NL80211_IFTYPE_ADHOC) |
 413             BIT(NL80211_IFTYPE_MESH_POINT) |
 414             BIT(NL80211_IFTYPE_P2P_CLIENT) |
 415             BIT(NL80211_IFTYPE_P2P_GO);
 416         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 417
 418         hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 419
 420         hw->wiphy->rts_threshold = 2347;
 421
 422         hw->queues = AC_MAX;
 423         hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
 424
 425         /* TODO: Correct this value for our hw */
 426         /* TODO: define these hard code value */
 427         hw->max_listen_interval = 10;
 428         hw->max_rate_tries = 4;
 429         /* hw->max_rates = 1; */
 430         hw->sta_data_size = sizeof(struct rtl_sta_info);
 431
 432 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
 433 #ifdef CONFIG_PM
 434         if (rtlpriv->psc.wo_wlan_mode) {
 435                 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
 436                         rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
 437                 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
 438                         rtlpriv->wowlan.n_patterns =
 439                                 MAX_SUPPORT_WOL_PATTERN_NUM;
 440                         rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
 441                         rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
 442                 }
 443                 hw->wiphy->wowlan = &rtlpriv->wowlan;
 444         }
 445 #endif
 446
 447         /* <6> mac address */
 448         if (is_valid_ether_addr(rtlefuse->dev_addr)) {
 449                 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
 450         } else {
 451                 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
 452                 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
 453                 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
 454         }
 455 }
 456
 457 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
 458 {
 459         struct rtl_priv *rtlpriv = rtl_priv(hw);
 460
 461         /* <1> timer */
 462         setup_timer(&rtlpriv->works.watchdog_timer,
 463                     rtl_watch_dog_timer_callback, (unsigned long)hw);
 464         setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
 465                     rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
 466         /* <2> work queue */
 467         rtlpriv->works.hw = hw;
 468         rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
 469         INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
 470                           (void *)rtl_watchdog_wq_callback);
 471         INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
 472                           (void *)rtl_ips_nic_off_wq_callback);
 473         INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
 474                           (void *)rtl_swlps_wq_callback);
 475         INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
 476                           (void *)rtl_swlps_rfon_wq_callback);
 477         INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
 478                           (void *)rtl_fwevt_wq_callback);
 479
 480 }
 481
 482 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
 483 {
 484         struct rtl_priv *rtlpriv = rtl_priv(hw);
 485
 486         del_timer_sync(&rtlpriv->works.watchdog_timer);
 487
 488         cancel_delayed_work(&rtlpriv->works.watchdog_wq);
 489         cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
 490         cancel_delayed_work(&rtlpriv->works.ps_work);
 491         cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 492         cancel_delayed_work(&rtlpriv->works.fwevt_wq);
 493 }
 494 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
 495
 496 void rtl_init_rfkill(struct ieee80211_hw *hw)
 497 {
 498         struct rtl_priv *rtlpriv = rtl_priv(hw);
 499
 500         bool radio_state;
 501         bool blocked;
 502         u8 valid = 0;
 503
 504         /*set init state to on */
 505         rtlpriv->rfkill.rfkill_state = true;
 506         wiphy_rfkill_set_hw_state(hw->wiphy, 0);
 507
 508         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
 509
 510         if (valid) {
 511                 pr_info("rtlwifi: wireless switch is %s\n",
 512                         rtlpriv->rfkill.rfkill_state ? "on" : "off");
 513
 514                 rtlpriv->rfkill.rfkill_state = radio_state;
 515
 516                 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
 517                 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
 518         }
 519
 520         wiphy_rfkill_start_polling(hw->wiphy);
 521 }
 522 EXPORT_SYMBOL(rtl_init_rfkill);
 523
 524 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
 525 {
 526         wiphy_rfkill_stop_polling(hw->wiphy);
 527 }
 528 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
 529
 530 int rtl_init_core(struct ieee80211_hw *hw)
 531 {
 532         struct rtl_priv *rtlpriv = rtl_priv(hw);
 533         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 534
 535         /* <1> init mac80211 */
 536         _rtl_init_mac80211(hw);
 537         rtlmac->hw = hw;
 538
 539         /* <2> rate control register */
 540         hw->rate_control_algorithm = "rtl_rc";
 541
 542         /*
 543          * <3> init CRDA must come after init
 544          * mac80211 hw  in _rtl_init_mac80211.
 545          */
 546         if (rtl_regd_init(hw, rtl_reg_notifier)) {
 547                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n");
 548                 return 1;
 549         }
 550
 551         /* <4> locks */
 552         mutex_init(&rtlpriv->locks.conf_mutex);
 553         spin_lock_init(&rtlpriv->locks.ips_lock);
 554         spin_lock_init(&rtlpriv->locks.irq_th_lock);
 555         spin_lock_init(&rtlpriv->locks.h2c_lock);
 556         spin_lock_init(&rtlpriv->locks.rf_ps_lock);
 557         spin_lock_init(&rtlpriv->locks.rf_lock);
 558         spin_lock_init(&rtlpriv->locks.waitq_lock);
 559         spin_lock_init(&rtlpriv->locks.entry_list_lock);
 560         spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
 561         spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
 562         spin_lock_init(&rtlpriv->locks.fw_ps_lock);
 563         spin_lock_init(&rtlpriv->locks.lps_lock);
 564         spin_lock_init(&rtlpriv->locks.iqk_lock);
 565         /* <5> init list */
 566         INIT_LIST_HEAD(&rtlpriv->entry_list);
 567
 568         rtlmac->link_state = MAC80211_NOLINK;
 569
 570         /* <6> init deferred work */
 571         _rtl_init_deferred_work(hw);
 572
 573         return 0;
 574 }
 575 EXPORT_SYMBOL_GPL(rtl_init_core);
 576
 577 void rtl_deinit_core(struct ieee80211_hw *hw)
 578 {
 579 }
 580 EXPORT_SYMBOL_GPL(rtl_deinit_core);
 581
 582 void rtl_init_rx_config(struct ieee80211_hw *hw)
 583 {
 584         struct rtl_priv *rtlpriv = rtl_priv(hw);
 585         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 586
 587         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
 588 }
 589 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
 590
 591 /*********************************************************
 592  *
 593  * tx information functions
 594  *
 595  *********************************************************/
 596 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
 597                                           struct rtl_tcb_desc *tcb_desc,
 598                                           struct ieee80211_tx_info *info)
 599 {
 600         struct rtl_priv *rtlpriv = rtl_priv(hw);
 601         u8 rate_flag = info->control.rates[0].flags;
 602
 603         tcb_desc->use_shortpreamble = false;
 604
 605         /* 1M can only use Long Preamble. 11B spec */
 606         if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
 607                 return;
 608         else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 609                 tcb_desc->use_shortpreamble = true;
 610
 611         return;
 612 }
 613
 614 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
 615                                struct ieee80211_sta *sta,
 616                                struct rtl_tcb_desc *tcb_desc,
 617                                struct ieee80211_tx_info *info)
 618 {
 619         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 620         u8 rate_flag = info->control.rates[0].flags;
 621         u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
 622         u8 sgi_80 = 0, bw_80 = 0;
 623         tcb_desc->use_shortgi = false;
 624
 625         if (sta == NULL)
 626                 return;
 627
 628         sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
 629         sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
 630         sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
 631
 632         if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
 633                 return;
 634
 635         if (!sgi_40 && !sgi_20)
 636                 return;
 637
 638         if (mac->opmode == NL80211_IFTYPE_STATION) {
 639                 bw_40 = mac->bw_40;
 640                 bw_80 = mac->bw_80;
 641         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 642                  mac->opmode == NL80211_IFTYPE_ADHOC ||
 643                  mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 644                 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 645                 bw_80 = sta->vht_cap.vht_supported;
 646         }
 647
 648         if (bw_80) {
 649                 if (sgi_80)
 650                         tcb_desc->use_shortgi = true;
 651                 else
 652                         tcb_desc->use_shortgi = false;
 653         } else {
 654                 if (bw_40 && sgi_40)
 655                         tcb_desc->use_shortgi = true;
 656                 else if (!bw_40 && sgi_20)
 657                         tcb_desc->use_shortgi = true;
 658         }
 659
 660         if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
 661                 tcb_desc->use_shortgi = false;
 662 }
 663
 664 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
 665                                        struct rtl_tcb_desc *tcb_desc,
 666                                        struct ieee80211_tx_info *info)
 667 {
 668         struct rtl_priv *rtlpriv = rtl_priv(hw);
 669         u8 rate_flag = info->control.rates[0].flags;
 670
 671         /* Common Settings */
 672         tcb_desc->rts_stbc = false;
 673         tcb_desc->cts_enable = false;
 674         tcb_desc->rts_sc = 0;
 675         tcb_desc->rts_bw = false;
 676         tcb_desc->rts_use_shortpreamble = false;
 677         tcb_desc->rts_use_shortgi = false;
 678
 679         if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 680                 /* Use CTS-to-SELF in protection mode. */
 681                 tcb_desc->rts_enable = true;
 682                 tcb_desc->cts_enable = true;
 683                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 684         } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
 685                 /* Use RTS-CTS in protection mode. */
 686                 tcb_desc->rts_enable = true;
 687                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 688         }
 689 }
 690
 691 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
 692                                    struct ieee80211_sta *sta,
 693                                    struct rtl_tcb_desc *tcb_desc)
 694 {
 695         struct rtl_priv *rtlpriv = rtl_priv(hw);
 696         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 697         struct rtl_sta_info *sta_entry = NULL;
 698         u8 ratr_index = 7;
 699
 700         if (sta) {
 701                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 702                 ratr_index = sta_entry->ratr_index;
 703         }
 704         if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
 705                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 706                         tcb_desc->ratr_index = 0;
 707                 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
 708                                 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 709                         if (tcb_desc->multicast || tcb_desc->broadcast) {
 710                                 tcb_desc->hw_rate =
 711                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
 712                                 tcb_desc->use_driver_rate = 1;
 713                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
 714                         } else {
 715                                 tcb_desc->ratr_index = ratr_index;
 716                         }
 717                 } else if (mac->opmode == NL80211_IFTYPE_AP) {
 718                         tcb_desc->ratr_index = ratr_index;
 719                 }
 720         }
 721
 722         if (rtlpriv->dm.useramask) {
 723                 tcb_desc->ratr_index = ratr_index;
 724                 /* TODO we will differentiate adhoc and station future  */
 725                 if (mac->opmode == NL80211_IFTYPE_STATION ||
 726                     mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 727                         tcb_desc->mac_id = 0;
 728
 729                         if (mac->mode == WIRELESS_MODE_AC_5G)
 730                                 tcb_desc->ratr_index =
 731                                         RATR_INX_WIRELESS_AC_5N;
 732                         else if (mac->mode == WIRELESS_MODE_AC_24G)
 733                                 tcb_desc->ratr_index =
 734                                         RATR_INX_WIRELESS_AC_24N;
 735                         else if (mac->mode == WIRELESS_MODE_N_24G)
 736                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
 737                         else if (mac->mode == WIRELESS_MODE_N_5G)
 738                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
 739                         else if (mac->mode & WIRELESS_MODE_G)
 740                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
 741                         else if (mac->mode & WIRELESS_MODE_B)
 742                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
 743                         else if (mac->mode & WIRELESS_MODE_A)
 744                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
 745
 746                 } else if (mac->opmode == NL80211_IFTYPE_AP ||
 747                         mac->opmode == NL80211_IFTYPE_ADHOC) {
 748                         if (NULL != sta) {
 749                                 if (sta->aid > 0)
 750                                         tcb_desc->mac_id = sta->aid + 1;
 751                                 else
 752                                         tcb_desc->mac_id = 1;
 753                         } else {
 754                                 tcb_desc->mac_id = 0;
 755                         }
 756                 }
 757         }
 758 }
 759
 760 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
 761                                       struct ieee80211_sta *sta,
 762                                       struct rtl_tcb_desc *tcb_desc)
 763 {
 764         struct rtl_priv *rtlpriv = rtl_priv(hw);
 765         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 766
 767         tcb_desc->packet_bw = false;
 768         if (!sta)
 769                 return;
 770         if (mac->opmode == NL80211_IFTYPE_AP ||
 771             mac->opmode == NL80211_IFTYPE_ADHOC ||
 772             mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 773                 if (!(sta->ht_cap.ht_supported) ||
 774                     !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
 775                         return;
 776         } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 777                 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
 778                         return;
 779         }
 780         if (tcb_desc->multicast || tcb_desc->broadcast)
 781                 return;
 782
 783         /*use legency rate, shall use 20MHz */
 784         if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
 785                 return;
 786
 787         tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
 788
 789         if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
 790             rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) {
 791                 if (mac->opmode == NL80211_IFTYPE_AP ||
 792                     mac->opmode == NL80211_IFTYPE_ADHOC ||
 793                     mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 794                         if (!(sta->vht_cap.vht_supported))
 795                                 return;
 796                 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 797                         if (!mac->bw_80 ||
 798                             !(sta->vht_cap.vht_supported))
 799                                 return;
 800                 }
 801                 if (tcb_desc->hw_rate <=
 802                         rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
 803                         return;
 804                 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
 805         }
 806 }
 807
 808 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
 809                                       struct ieee80211_sta *sta)
 810 {
 811         struct rtl_priv *rtlpriv = rtl_priv(hw);
 812         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 813         u8 hw_rate;
 814         u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
 815
 816         if ((get_rf_type(rtlphy) == RF_2T2R) &&
 817             (tx_mcs_map & 0x000c) != 0x000c) {
 818                 if ((tx_mcs_map & 0x000c) >> 2 ==
 819                         IEEE80211_VHT_MCS_SUPPORT_0_7)
 820                         hw_rate =
 821                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
 822                 else if ((tx_mcs_map  & 0x000c) >> 2 ==
 823                         IEEE80211_VHT_MCS_SUPPORT_0_8)
 824                         hw_rate =
 825                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
 826                 else
 827                         hw_rate =
 828                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
 829         } else {
 830                 if ((tx_mcs_map  & 0x0003) ==
 831                         IEEE80211_VHT_MCS_SUPPORT_0_7)
 832                         hw_rate =
 833                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
 834                 else if ((tx_mcs_map  & 0x0003) ==
 835                         IEEE80211_VHT_MCS_SUPPORT_0_8)
 836                         hw_rate =
 837                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
 838                 else
 839                         hw_rate =
 840                         rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
 841         }
 842
 843         return hw_rate;
 844 }
 845
 846 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
 847                                   struct ieee80211_sta *sta)
 848 {
 849         struct rtl_priv *rtlpriv = rtl_priv(hw);
 850         struct rtl_phy *rtlphy = &rtlpriv->phy;
 851         u8 hw_rate;
 852
 853         if ((get_rf_type(rtlphy) == RF_2T2R) &&
 854             (sta->ht_cap.mcs.rx_mask[1] != 0))
 855                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
 856         else
 857                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
 858
 859         return hw_rate;
 860 }
 861
 862 /* mac80211's rate_idx is like this:
 863  *
 864  * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
 865  *
 866  * B/G rate:
 867  * (rx_status->flag & RX_FLAG_HT) = 0,
 868  * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
 869  *
 870  * N rate:
 871  * (rx_status->flag & RX_FLAG_HT) = 1,
 872  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 873  *
 874  * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
 875  * A rate:
 876  * (rx_status->flag & RX_FLAG_HT) = 0,
 877  * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
 878  *
 879  * N rate:
 880  * (rx_status->flag & RX_FLAG_HT) = 1,
 881  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 882  *
 883  * VHT rates:
 884  * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
 885  * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
 886  */
 887 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
 888                          u8 desc_rate)
 889 {
 890         int rate_idx;
 891
 892         if (isvht) {
 893                 switch (desc_rate) {
 894                 case DESC_RATEVHT1SS_MCS0:
 895                         rate_idx = 0;
 896                         break;
 897                 case DESC_RATEVHT1SS_MCS1:
 898                         rate_idx = 1;
 899                         break;
 900                 case DESC_RATEVHT1SS_MCS2:
 901                         rate_idx = 2;
 902                         break;
 903                 case DESC_RATEVHT1SS_MCS3:
 904                         rate_idx = 3;
 905                         break;
 906                 case DESC_RATEVHT1SS_MCS4:
 907                         rate_idx = 4;
 908                         break;
 909                 case DESC_RATEVHT1SS_MCS5:
 910                         rate_idx = 5;
 911                         break;
 912                 case DESC_RATEVHT1SS_MCS6:
 913                         rate_idx = 6;
 914                         break;
 915                 case DESC_RATEVHT1SS_MCS7:
 916                         rate_idx = 7;
 917                         break;
 918                 case DESC_RATEVHT1SS_MCS8:
 919                         rate_idx = 8;
 920                         break;
 921                 case DESC_RATEVHT1SS_MCS9:
 922                         rate_idx = 9;
 923                         break;
 924                 case DESC_RATEVHT2SS_MCS0:
 925                         rate_idx = 0;
 926                         break;
 927                 case DESC_RATEVHT2SS_MCS1:
 928                         rate_idx = 1;
 929                         break;
 930                 case DESC_RATEVHT2SS_MCS2:
 931                         rate_idx = 2;
 932                         break;
 933                 case DESC_RATEVHT2SS_MCS3:
 934                         rate_idx = 3;
 935                         break;
 936                 case DESC_RATEVHT2SS_MCS4:
 937                         rate_idx = 4;
 938                         break;
 939                 case DESC_RATEVHT2SS_MCS5:
 940                         rate_idx = 5;
 941                         break;
 942                 case DESC_RATEVHT2SS_MCS6:
 943                         rate_idx = 6;
 944                         break;
 945                 case DESC_RATEVHT2SS_MCS7:
 946                         rate_idx = 7;
 947                         break;
 948                 case DESC_RATEVHT2SS_MCS8:
 949                         rate_idx = 8;
 950                         break;
 951                 case DESC_RATEVHT2SS_MCS9:
 952                         rate_idx = 9;
 953                         break;
 954                 default:
 955                         rate_idx = 0;
 956                         break;
 957                 }
 958                 return rate_idx;
 959         }
 960         if (false == isht) {
 961                 if (IEEE80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
 962                         switch (desc_rate) {
 963                         case DESC_RATE1M:
 964                                 rate_idx = 0;
 965                                 break;
 966                         case DESC_RATE2M:
 967                                 rate_idx = 1;
 968                                 break;
 969                         case DESC_RATE5_5M:
 970                                 rate_idx = 2;
 971                                 break;
 972                         case DESC_RATE11M:
 973                                 rate_idx = 3;
 974                                 break;
 975                         case DESC_RATE6M:
 976                                 rate_idx = 4;
 977                                 break;
 978                         case DESC_RATE9M:
 979                                 rate_idx = 5;
 980                                 break;
 981                         case DESC_RATE12M:
 982                                 rate_idx = 6;
 983                                 break;
 984                         case DESC_RATE18M:
 985                                 rate_idx = 7;
 986                                 break;
 987                         case DESC_RATE24M:
 988                                 rate_idx = 8;
 989                                 break;
 990                         case DESC_RATE36M:
 991                                 rate_idx = 9;
 992                                 break;
 993                         case DESC_RATE48M:
 994                                 rate_idx = 10;
 995                                 break;
 996                         case DESC_RATE54M:
 997                                 rate_idx = 11;
 998                                 break;
 999                         default:
1000                                 rate_idx = 0;
1001                                 break;
1002                         }
1003                 } else {
1004                         switch (desc_rate) {
1005                         case DESC_RATE6M:
1006                                 rate_idx = 0;
1007                                 break;
1008                         case DESC_RATE9M:
1009                                 rate_idx = 1;
1010                                 break;
1011                         case DESC_RATE12M:
1012                                 rate_idx = 2;
1013                                 break;
1014                         case DESC_RATE18M:
1015                                 rate_idx = 3;
1016                                 break;
1017                         case DESC_RATE24M:
1018                                 rate_idx = 4;
1019                                 break;
1020                         case DESC_RATE36M:
1021                                 rate_idx = 5;
1022                                 break;
1023                         case DESC_RATE48M:
1024                                 rate_idx = 6;
1025                                 break;
1026                         case DESC_RATE54M:
1027                                 rate_idx = 7;
1028                                 break;
1029                         default:
1030                                 rate_idx = 0;
1031                                 break;
1032                         }
1033                 }
1034         } else {
1035                 switch (desc_rate) {
1036                 case DESC_RATEMCS0:
1037                         rate_idx = 0;
1038                         break;
1039                 case DESC_RATEMCS1:
1040                         rate_idx = 1;
1041                         break;
1042                 case DESC_RATEMCS2:
1043                         rate_idx = 2;
1044                         break;
1045                 case DESC_RATEMCS3:
1046                         rate_idx = 3;
1047                         break;
1048                 case DESC_RATEMCS4:
1049                         rate_idx = 4;
1050                         break;
1051                 case DESC_RATEMCS5:
1052                         rate_idx = 5;
1053                         break;
1054                 case DESC_RATEMCS6:
1055                         rate_idx = 6;
1056                         break;
1057                 case DESC_RATEMCS7:
1058                         rate_idx = 7;
1059                         break;
1060                 case DESC_RATEMCS8:
1061                         rate_idx = 8;
1062                         break;
1063                 case DESC_RATEMCS9:
1064                         rate_idx = 9;
1065                         break;
1066                 case DESC_RATEMCS10:
1067                         rate_idx = 10;
1068                         break;
1069                 case DESC_RATEMCS11:
1070                         rate_idx = 11;
1071                         break;
1072                 case DESC_RATEMCS12:
1073                         rate_idx = 12;
1074                         break;
1075                 case DESC_RATEMCS13:
1076                         rate_idx = 13;
1077                         break;
1078                 case DESC_RATEMCS14:
1079                         rate_idx = 14;
1080                         break;
1081                 case DESC_RATEMCS15:
1082                         rate_idx = 15;
1083                         break;
1084                 default:
1085                         rate_idx = 0;
1086                         break;
1087                 }
1088         }
1089         return rate_idx;
1090 }
1091 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1092
1093 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1094                       struct ieee80211_tx_info *info,
1095                       struct ieee80211_sta *sta,
1096                       struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1097 {
1098         struct rtl_priv *rtlpriv = rtl_priv(hw);
1099         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1100         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1101         struct ieee80211_rate *txrate;
1102         __le16 fc = rtl_get_fc(skb);
1103
1104         txrate = ieee80211_get_tx_rate(hw, info);
1105         if (txrate)
1106                 tcb_desc->hw_rate = txrate->hw_value;
1107
1108         if (ieee80211_is_data(fc)) {
1109                 /*
1110                  *we set data rate INX 0
1111                  *in rtl_rc.c   if skb is special data or
1112                  *mgt which need low data rate.
1113                  */
1114
1115                 /*
1116                  *So tcb_desc->hw_rate is just used for
1117                  *special data and mgt frames
1118                  */
1119                 if (info->control.rates[0].idx == 0 ||
1120                                 ieee80211_is_nullfunc(fc)) {
1121                         tcb_desc->use_driver_rate = true;
1122                         tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1123
1124                         tcb_desc->disable_ratefallback = 1;
1125                 } else {
1126                         /*
1127                          *because hw will nerver use hw_rate
1128                          *when tcb_desc->use_driver_rate = false
1129                          *so we never set highest N rate here,
1130                          *and N rate will all be controlled by FW
1131                          *when tcb_desc->use_driver_rate = false
1132                          */
1133                         if (sta && sta->vht_cap.vht_supported) {
1134                                 tcb_desc->hw_rate =
1135                                 _rtl_get_vht_highest_n_rate(hw, sta);
1136                         } else {
1137                                 if (sta && (sta->ht_cap.ht_supported)) {
1138                                         tcb_desc->hw_rate =
1139                                                 _rtl_get_highest_n_rate(hw, sta);
1140                                 } else {
1141                                         if (rtlmac->mode == WIRELESS_MODE_B) {
1142                                                 tcb_desc->hw_rate =
1143                                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1144                                         } else {
1145                                                 tcb_desc->hw_rate =
1146                                                     rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1147                                         }
1148                                 }
1149                         }
1150                 }
1151
1152                 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
1153                         tcb_desc->multicast = 1;
1154                 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
1155                         tcb_desc->broadcast = 1;
1156
1157                 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1158                 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1159                 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1160                 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1161                 _rtl_query_protection_mode(hw, tcb_desc, info);
1162         } else {
1163                 tcb_desc->use_driver_rate = true;
1164                 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1165                 tcb_desc->disable_ratefallback = 1;
1166                 tcb_desc->mac_id = 0;
1167                 tcb_desc->packet_bw = false;
1168         }
1169 }
1170 EXPORT_SYMBOL(rtl_get_tcb_desc);
1171
1172 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1173 {
1174         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1175         struct rtl_priv *rtlpriv = rtl_priv(hw);
1176         __le16 fc = rtl_get_fc(skb);
1177
1178         if (rtlpriv->dm.supp_phymode_switch &&
1179             mac->link_state < MAC80211_LINKED &&
1180             (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1181                 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1182                         rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1183         }
1184         if (ieee80211_is_auth(fc)) {
1185                 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1186                 rtl_ips_nic_on(hw);
1187
1188                 mac->link_state = MAC80211_LINKING;
1189                 /* Dul mac */
1190                 rtlpriv->phy.need_iqk = true;
1191
1192         }
1193
1194         return true;
1195 }
1196 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1197
1198 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1199                                 u8 *bssid, u16 tid);
1200
1201 static void process_agg_start(struct ieee80211_hw *hw,
1202                               struct ieee80211_hdr *hdr, u16 tid)
1203 {
1204         struct rtl_priv *rtlpriv = rtl_priv(hw);
1205         struct ieee80211_rx_status rx_status = { 0 };
1206         struct sk_buff *skb_delba = NULL;
1207
1208         skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1209         if (skb_delba) {
1210                 rx_status.freq = hw->conf.chandef.chan->center_freq;
1211                 rx_status.band = hw->conf.chandef.chan->band;
1212                 rx_status.flag |= RX_FLAG_DECRYPTED;
1213                 rx_status.flag |= RX_FLAG_MACTIME_START;
1214                 rx_status.rate_idx = 0;
1215                 rx_status.signal = 50 + 10;
1216                 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1217                        &rx_status, sizeof(rx_status));
1218                 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1219                               "fake del\n",
1220                               skb_delba->data,
1221                               skb_delba->len);
1222                 ieee80211_rx_irqsafe(hw, skb_delba);
1223         }
1224 }
1225
1226 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1227 {
1228         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1229         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1230         struct rtl_priv *rtlpriv = rtl_priv(hw);
1231         __le16 fc = rtl_get_fc(skb);
1232         u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1233         u8 category;
1234
1235         if (!ieee80211_is_action(fc))
1236                 return true;
1237
1238         category = *act;
1239         act++;
1240         switch (category) {
1241         case ACT_CAT_BA:
1242                 switch (*act) {
1243                 case ACT_ADDBAREQ:
1244                         if (mac->act_scanning)
1245                                 return false;
1246
1247                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1248                                 "%s ACT_ADDBAREQ From :%pM\n",
1249                                 is_tx ? "Tx" : "Rx", hdr->addr2);
1250                         RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1251                                 skb->data, skb->len);
1252                         if (!is_tx) {
1253                                 struct ieee80211_sta *sta = NULL;
1254                                 struct rtl_sta_info *sta_entry = NULL;
1255                                 struct rtl_tid_data *tid_data;
1256                                 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1257                                 u16 capab = 0, tid = 0;
1258
1259                                 rcu_read_lock();
1260                                 sta = rtl_find_sta(hw, hdr->addr3);
1261                                 if (sta == NULL) {
1262                                         RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1263                                                  DBG_DMESG, "sta is NULL\n");
1264                                         rcu_read_unlock();
1265                                         return true;
1266                                 }
1267
1268                                 sta_entry =
1269                                         (struct rtl_sta_info *)sta->drv_priv;
1270                                 if (!sta_entry) {
1271                                         rcu_read_unlock();
1272                                         return true;
1273                                 }
1274                                 capab =
1275                                   le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1276                                 tid = (capab &
1277                                        IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1278                                 tid_data = &sta_entry->tids[tid];
1279                                 if (tid_data->agg.rx_agg_state ==
1280                                     RTL_RX_AGG_START)
1281                                         process_agg_start(hw, hdr, tid);
1282                                 rcu_read_unlock();
1283                         }
1284                         break;
1285                 case ACT_ADDBARSP:
1286                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1287                                  "%s ACT_ADDBARSP From :%pM\n",
1288                                   is_tx ? "Tx" : "Rx", hdr->addr2);
1289                         break;
1290                 case ACT_DELBA:
1291                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1292                                  "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1293                         break;
1294                 }
1295                 break;
1296         default:
1297                 break;
1298         }
1299
1300         return true;
1301 }
1302 EXPORT_SYMBOL_GPL(rtl_action_proc);
1303
1304 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc)
1305 {
1306         rtlpriv->ra.is_special_data = true;
1307         if (rtlpriv->cfg->ops->get_btc_status())
1308                 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1309                                         rtlpriv, 1);
1310         rtlpriv->enter_ps = false;
1311         schedule_work(&rtlpriv->works.lps_change_work);
1312         ppsc->last_delaylps_stamp_jiffies = jiffies;
1313 }
1314
1315 /*should call before software enc*/
1316 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1317                        bool is_enc)
1318 {
1319         struct rtl_priv *rtlpriv = rtl_priv(hw);
1320         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1321         __le16 fc = rtl_get_fc(skb);
1322         u16 ether_type;
1323         u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1324         u8 encrypt_header_len = 0;
1325         u8 offset;
1326         const struct iphdr *ip;
1327
1328         if (!ieee80211_is_data(fc))
1329                 goto end;
1330
1331         switch (rtlpriv->sec.pairwise_enc_algorithm) {
1332         case WEP40_ENCRYPTION:
1333         case WEP104_ENCRYPTION:
1334                 encrypt_header_len = 4;/*WEP_IV_LEN*/
1335                 break;
1336         case TKIP_ENCRYPTION:
1337                 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1338                 break;
1339         case AESCCMP_ENCRYPTION:
1340                 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1341                 break;
1342         default:
1343                 break;
1344         }
1345
1346         offset = mac_hdr_len + SNAP_SIZE;
1347         if (is_enc)
1348                 offset += encrypt_header_len;
1349         ether_type = be16_to_cpup((__be16 *)(skb->data + offset));
1350
1351         if (ETH_P_IP == ether_type) {
1352                 ip = (struct iphdr *)((u8 *)skb->data + offset +
1353                      PROTOC_TYPE_SIZE);
1354                 if (IPPROTO_UDP == ip->protocol) {
1355                         struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1356                                                                (ip->ihl << 2));
1357                         if (((((u8 *)udp)[1] == 68) &&
1358                              (((u8 *)udp)[3] == 67)) ||
1359                             ((((u8 *)udp)[1] == 67) &&
1360                              (((u8 *)udp)[3] == 68))) {
1361                                 /* 68 : UDP BOOTP client
1362                                  * 67 : UDP BOOTP server
1363                                  */
1364                                 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1365                                          DBG_DMESG, "dhcp %s !!\n",
1366                                          (is_tx) ? "Tx" : "Rx");
1367
1368                                 if (is_tx)
1369                                         setup_arp_tx(rtlpriv, ppsc);
1370                                 return true;
1371                         }
1372                 }
1373         } else if (ETH_P_ARP == ether_type) {
1374                 if (is_tx)
1375                         setup_arp_tx(rtlpriv, ppsc);
1376
1377                 return true;
1378         } else if (ETH_P_PAE == ether_type) {
1379                 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1380                          "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1381
1382                 if (is_tx) {
1383                         rtlpriv->ra.is_special_data = true;
1384                         rtlpriv->enter_ps = false;
1385                         schedule_work(&rtlpriv->works.lps_change_work);
1386                         ppsc->last_delaylps_stamp_jiffies = jiffies;
1387                 }
1388
1389                 return true;
1390         } else if (ETH_P_IPV6 == ether_type) {
1391                 /* TODO: Handle any IPv6 cases that need special handling.
1392                  * For now, always return false
1393                  */
1394                 goto end;
1395         }
1396
1397 end:
1398         rtlpriv->ra.is_special_data = false;
1399         return false;
1400 }
1401 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1402
1403 /*********************************************************
1404  *
1405  * functions called by core.c
1406  *
1407  *********************************************************/
1408 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1409                      struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1410 {
1411         struct rtl_priv *rtlpriv = rtl_priv(hw);
1412         struct rtl_tid_data *tid_data;
1413         struct rtl_sta_info *sta_entry = NULL;
1414
1415         if (sta == NULL)
1416                 return -EINVAL;
1417
1418         if (unlikely(tid >= MAX_TID_COUNT))
1419                 return -EINVAL;
1420
1421         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1422         if (!sta_entry)
1423                 return -ENXIO;
1424         tid_data = &sta_entry->tids[tid];
1425
1426         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1427                  "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1428                  tid_data->seq_number);
1429
1430         *ssn = tid_data->seq_number;
1431         tid_data->agg.agg_state = RTL_AGG_START;
1432
1433         ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1434         return 0;
1435 }
1436
1437 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1438                     struct ieee80211_sta *sta, u16 tid)
1439 {
1440         struct rtl_priv *rtlpriv = rtl_priv(hw);
1441         struct rtl_tid_data *tid_data;
1442         struct rtl_sta_info *sta_entry = NULL;
1443
1444         if (sta == NULL)
1445                 return -EINVAL;
1446
1447         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1448                  "on ra = %pM tid = %d\n", sta->addr, tid);
1449
1450         if (unlikely(tid >= MAX_TID_COUNT))
1451                 return -EINVAL;
1452
1453         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1454         tid_data = &sta_entry->tids[tid];
1455         sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1456
1457         ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1458         return 0;
1459 }
1460
1461 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1462                      struct ieee80211_sta *sta, u16 tid)
1463 {
1464         struct rtl_priv *rtlpriv = rtl_priv(hw);
1465         struct rtl_tid_data *tid_data;
1466         struct rtl_sta_info *sta_entry = NULL;
1467
1468         if (sta == NULL)
1469                 return -EINVAL;
1470
1471         if (unlikely(tid >= MAX_TID_COUNT))
1472                 return -EINVAL;
1473
1474         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1475         if (!sta_entry)
1476                 return -ENXIO;
1477         tid_data = &sta_entry->tids[tid];
1478
1479         RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1480                  "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1481                  tid_data->seq_number);
1482
1483         tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1484         return 0;
1485 }
1486
1487 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1488                     struct ieee80211_sta *sta, u16 tid)
1489 {
1490         struct rtl_priv *rtlpriv = rtl_priv(hw);
1491         struct rtl_sta_info *sta_entry = NULL;
1492
1493         if (sta == NULL)
1494                 return -EINVAL;
1495
1496         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1497                  "on ra = %pM tid = %d\n", sta->addr, tid);
1498
1499         if (unlikely(tid >= MAX_TID_COUNT))
1500                 return -EINVAL;
1501
1502         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1503         sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1504
1505         return 0;
1506 }
1507 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1508                 struct ieee80211_sta *sta, u16 tid)
1509 {
1510         struct rtl_priv *rtlpriv = rtl_priv(hw);
1511         struct rtl_sta_info *sta_entry = NULL;
1512
1513         if (sta == NULL)
1514                 return -EINVAL;
1515
1516         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1517                  "on ra = %pM tid = %d\n", sta->addr, tid);
1518
1519         if (unlikely(tid >= MAX_TID_COUNT))
1520                 return -EINVAL;
1521
1522         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1523         sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1524
1525         return 0;
1526 }
1527
1528 /*********************************************************
1529  *
1530  * wq & timer callback functions
1531  *
1532  *********************************************************/
1533 /* this function is used for roaming */
1534 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1535 {
1536         struct rtl_priv *rtlpriv = rtl_priv(hw);
1537         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1538
1539         if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1540                 return;
1541
1542         if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1543                 return;
1544
1545         /* check if this really is a beacon */
1546         if (!ieee80211_is_beacon(hdr->frame_control) &&
1547             !ieee80211_is_probe_resp(hdr->frame_control))
1548                 return;
1549
1550         /* min. beacon length + FCS_LEN */
1551         if (skb->len <= 40 + FCS_LEN)
1552                 return;
1553
1554         /* and only beacons from the associated BSSID, please */
1555         if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1556                 return;
1557
1558         rtlpriv->link_info.bcn_rx_inperiod++;
1559 }
1560 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1561
1562 void rtl_watchdog_wq_callback(void *data)
1563 {
1564         struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1565                                                             struct rtl_works,
1566                                                             watchdog_wq);
1567         struct ieee80211_hw *hw = rtlworks->hw;
1568         struct rtl_priv *rtlpriv = rtl_priv(hw);
1569         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1570         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1571         bool busytraffic = false;
1572         bool tx_busy_traffic = false;
1573         bool rx_busy_traffic = false;
1574         bool higher_busytraffic = false;
1575         bool higher_busyrxtraffic = false;
1576         u8 idx, tid;
1577         u32 rx_cnt_inp4eriod = 0;
1578         u32 tx_cnt_inp4eriod = 0;
1579         u32 aver_rx_cnt_inperiod = 0;
1580         u32 aver_tx_cnt_inperiod = 0;
1581         u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1582         u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1583
1584         if (is_hal_stop(rtlhal))
1585                 return;
1586
1587         /* <1> Determine if action frame is allowed */
1588         if (mac->link_state > MAC80211_NOLINK) {
1589                 if (mac->cnt_after_linked < 20)
1590                         mac->cnt_after_linked++;
1591         } else {
1592                 mac->cnt_after_linked = 0;
1593         }
1594
1595         /* <2> to check if traffic busy, if
1596          * busytraffic we don't change channel
1597          */
1598         if (mac->link_state >= MAC80211_LINKED) {
1599
1600                 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1601                 for (idx = 0; idx <= 2; idx++) {
1602                         rtlpriv->link_info.num_rx_in4period[idx] =
1603                             rtlpriv->link_info.num_rx_in4period[idx + 1];
1604                         rtlpriv->link_info.num_tx_in4period[idx] =
1605                             rtlpriv->link_info.num_tx_in4period[idx + 1];
1606                 }
1607                 rtlpriv->link_info.num_rx_in4period[3] =
1608                     rtlpriv->link_info.num_rx_inperiod;
1609                 rtlpriv->link_info.num_tx_in4period[3] =
1610                     rtlpriv->link_info.num_tx_inperiod;
1611                 for (idx = 0; idx <= 3; idx++) {
1612                         rx_cnt_inp4eriod +=
1613                             rtlpriv->link_info.num_rx_in4period[idx];
1614                         tx_cnt_inp4eriod +=
1615                             rtlpriv->link_info.num_tx_in4period[idx];
1616                 }
1617                 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1618                 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1619
1620                 /* (2) check traffic busy */
1621                 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1622                         busytraffic = true;
1623                         if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1624                                 rx_busy_traffic = true;
1625                         else
1626                                 tx_busy_traffic = false;
1627                 }
1628
1629                 /* Higher Tx/Rx data. */
1630                 if (aver_rx_cnt_inperiod > 4000 ||
1631                     aver_tx_cnt_inperiod > 4000) {
1632                         higher_busytraffic = true;
1633
1634                         /* Extremely high Rx data. */
1635                         if (aver_rx_cnt_inperiod > 5000)
1636                                 higher_busyrxtraffic = true;
1637                 }
1638
1639                 /* check every tid's tx traffic */
1640                 for (tid = 0; tid <= 7; tid++) {
1641                         for (idx = 0; idx <= 2; idx++)
1642                                 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1643                                         rtlpriv->link_info.tidtx_in4period[tid]
1644                                         [idx + 1];
1645                         rtlpriv->link_info.tidtx_in4period[tid][3] =
1646                                 rtlpriv->link_info.tidtx_inperiod[tid];
1647
1648                         for (idx = 0; idx <= 3; idx++)
1649                                 tidtx_inp4eriod[tid] +=
1650                                    rtlpriv->link_info.tidtx_in4period[tid][idx];
1651                         aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1652                         if (aver_tidtx_inperiod[tid] > 5000)
1653                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1654                                                                         true;
1655                         else
1656                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1657                                                                         false;
1658                 }
1659
1660                 if (((rtlpriv->link_info.num_rx_inperiod +
1661                       rtlpriv->link_info.num_tx_inperiod) > 8) ||
1662                     (rtlpriv->link_info.num_rx_inperiod > 2))
1663                         rtl_lps_enter(hw);
1664                 else
1665                         rtl_lps_leave(hw);
1666         }
1667
1668         rtlpriv->link_info.num_rx_inperiod = 0;
1669         rtlpriv->link_info.num_tx_inperiod = 0;
1670         for (tid = 0; tid <= 7; tid++)
1671                 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1672
1673         rtlpriv->link_info.busytraffic = busytraffic;
1674         rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1675         rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1676         rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1677         rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1678
1679         /* <3> DM */
1680         if (!rtlpriv->cfg->mod_params->disable_watchdog)
1681                 rtlpriv->cfg->ops->dm_watchdog(hw);
1682
1683         /* <4> roaming */
1684         if (mac->link_state == MAC80211_LINKED &&
1685             mac->opmode == NL80211_IFTYPE_STATION) {
1686                 if ((rtlpriv->link_info.bcn_rx_inperiod +
1687                     rtlpriv->link_info.num_rx_inperiod) == 0) {
1688                         rtlpriv->link_info.roam_times++;
1689                         RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1690                                  "AP off for %d s\n",
1691                                 (rtlpriv->link_info.roam_times * 2));
1692
1693                         /* if we can't recv beacon for 10s,
1694                          * we should reconnect this AP
1695                          */
1696                         if (rtlpriv->link_info.roam_times >= 5) {
1697                                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1698                                          "AP off, try to reconnect now\n");
1699                                 rtlpriv->link_info.roam_times = 0;
1700                                 ieee80211_connection_loss(
1701                                         rtlpriv->mac80211.vif);
1702                         }
1703                 } else {
1704                         rtlpriv->link_info.roam_times = 0;
1705                 }
1706         }
1707
1708         if (rtlpriv->cfg->ops->get_btc_status())
1709                 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
1710
1711         rtlpriv->link_info.bcn_rx_inperiod = 0;
1712 }
1713
1714 void rtl_watch_dog_timer_callback(unsigned long data)
1715 {
1716         struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1717         struct rtl_priv *rtlpriv = rtl_priv(hw);
1718
1719         queue_delayed_work(rtlpriv->works.rtl_wq,
1720                            &rtlpriv->works.watchdog_wq, 0);
1721
1722         mod_timer(&rtlpriv->works.watchdog_timer,
1723                   jiffies + MSECS(RTL_WATCH_DOG_TIME));
1724 }
1725 void rtl_fwevt_wq_callback(void *data)
1726 {
1727         struct rtl_works *rtlworks =
1728                 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1729         struct ieee80211_hw *hw = rtlworks->hw;
1730         struct rtl_priv *rtlpriv = rtl_priv(hw);
1731
1732         rtlpriv->cfg->ops->c2h_command_handle(hw);
1733 }
1734 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1735 {
1736         struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1737         struct rtl_priv *rtlpriv = rtl_priv(hw);
1738         struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1739
1740         if (buddy_priv == NULL)
1741                 return;
1742
1743         rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1744 }
1745 /*********************************************************
1746  *
1747  * frame process functions
1748  *
1749  *********************************************************/
1750 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1751 {
1752         struct ieee80211_mgmt *mgmt = (void *)data;
1753         u8 *pos, *end;
1754
1755         pos = (u8 *)mgmt->u.beacon.variable;
1756         end = data + len;
1757         while (pos < end) {
1758                 if (pos + 2 + pos[1] > end)
1759                         return NULL;
1760
1761                 if (pos[0] == ie)
1762                         return pos;
1763
1764                 pos += 2 + pos[1];
1765         }
1766         return NULL;
1767 }
1768
1769 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1770 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1771 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1772                                      enum ieee80211_smps_mode smps,
1773                                      u8 *da, u8 *bssid)
1774 {
1775         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1776         struct sk_buff *skb;
1777         struct ieee80211_mgmt *action_frame;
1778
1779         /* 27 = header + category + action + smps mode */
1780         skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1781         if (!skb)
1782                 return NULL;
1783
1784         skb_reserve(skb, hw->extra_tx_headroom);
1785         action_frame = (void *)skb_put(skb, 27);
1786         memset(action_frame, 0, 27);
1787         memcpy(action_frame->da, da, ETH_ALEN);
1788         memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1789         memcpy(action_frame->bssid, bssid, ETH_ALEN);
1790         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1791                                                   IEEE80211_STYPE_ACTION);
1792         action_frame->u.action.category = WLAN_CATEGORY_HT;
1793         action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1794         switch (smps) {
1795         case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1796         case IEEE80211_SMPS_NUM_MODES:/* 4 */
1797                 WARN_ON(1);
1798         /* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
1799          * According to Kernel Code, here is right.
1800          */
1801         case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1802                 action_frame->u.action.u.ht_smps.smps_control =
1803                                 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1804                 break;
1805         case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1806                 action_frame->u.action.u.ht_smps.smps_control =
1807                                 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1808                 break;
1809         case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1810                 action_frame->u.action.u.ht_smps.smps_control =
1811                                 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1812                 break;
1813         }
1814
1815         return skb;
1816 }
1817
1818 int rtl_send_smps_action(struct ieee80211_hw *hw,
1819                          struct ieee80211_sta *sta,
1820                          enum ieee80211_smps_mode smps)
1821 {
1822         struct rtl_priv *rtlpriv = rtl_priv(hw);
1823         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1824         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1825         struct sk_buff *skb = NULL;
1826         struct rtl_tcb_desc tcb_desc;
1827         u8 bssid[ETH_ALEN] = {0};
1828
1829         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1830
1831         if (rtlpriv->mac80211.act_scanning)
1832                 goto err_free;
1833
1834         if (!sta)
1835                 goto err_free;
1836
1837         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1838                 goto err_free;
1839
1840         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1841                 goto err_free;
1842
1843         if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1844                 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1845         else
1846                 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1847
1848         skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1849         /* this is a type = mgmt * stype = action frame */
1850         if (skb) {
1851                 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1852                 struct rtl_sta_info *sta_entry =
1853                         (struct rtl_sta_info *) sta->drv_priv;
1854                 sta_entry->mimo_ps = smps;
1855                 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */
1856
1857                 info->control.rates[0].idx = 0;
1858                 info->band = hw->conf.chandef.chan->band;
1859                 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1860         }
1861         return 1;
1862
1863 err_free:
1864         return 0;
1865 }
1866 EXPORT_SYMBOL(rtl_send_smps_action);
1867
1868 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
1869 {
1870         struct rtl_priv *rtlpriv = rtl_priv(hw);
1871         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1872         enum io_type iotype;
1873
1874         if (!is_hal_stop(rtlhal)) {
1875                 switch (operation) {
1876                 case SCAN_OPT_BACKUP:
1877                         iotype = IO_CMD_PAUSE_DM_BY_SCAN;
1878                         rtlpriv->cfg->ops->set_hw_reg(hw,
1879                                                       HW_VAR_IO_CMD,
1880                                                       (u8 *)&iotype);
1881                         break;
1882                 case SCAN_OPT_RESTORE:
1883                         iotype = IO_CMD_RESUME_DM_BY_SCAN;
1884                         rtlpriv->cfg->ops->set_hw_reg(hw,
1885                                                       HW_VAR_IO_CMD,
1886                                                       (u8 *)&iotype);
1887                         break;
1888                 default:
1889                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1890                                  "Unknown Scan Backup operation.\n");
1891                         break;
1892                 }
1893         }
1894 }
1895 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
1896
1897 /* because mac80211 have issues when can receive del ba
1898  * so here we just make a fake del_ba if we receive a ba_req
1899  * but rx_agg was opened to let mac80211 release some ba
1900  * related resources, so please this del_ba for tx
1901  */
1902 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1903                                 u8 *sa, u8 *bssid, u16 tid)
1904 {
1905         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1906         struct sk_buff *skb;
1907         struct ieee80211_mgmt *action_frame;
1908         u16 params;
1909
1910         /* 27 = header + category + action + smps mode */
1911         skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1912         if (!skb)
1913                 return NULL;
1914
1915         skb_reserve(skb, hw->extra_tx_headroom);
1916         action_frame = (void *)skb_put(skb, 34);
1917         memset(action_frame, 0, 34);
1918         memcpy(action_frame->sa, sa, ETH_ALEN);
1919         memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1920         memcpy(action_frame->bssid, bssid, ETH_ALEN);
1921         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1922                                                   IEEE80211_STYPE_ACTION);
1923         action_frame->u.action.category = WLAN_CATEGORY_BACK;
1924         action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1925         params = (u16)(1 << 11);        /* bit 11 initiator */
1926         params |= (u16)(tid << 12);     /* bit 15:12 TID number */
1927
1928         action_frame->u.action.u.delba.params = cpu_to_le16(params);
1929         action_frame->u.action.u.delba.reason_code =
1930                 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1931
1932         return skb;
1933 }
1934
1935 /*********************************************************
1936  *
1937  * IOT functions
1938  *
1939  *********************************************************/
1940 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1941                                   struct octet_string vendor_ie)
1942 {
1943         struct rtl_priv *rtlpriv = rtl_priv(hw);
1944         bool matched = false;
1945         static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1946         static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1947         static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1948         static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1949         static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1950         static u8 racap[] = { 0x00, 0x0c, 0x43 };
1951         static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1952         static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1953
1954         if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1955                 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1956                 rtlpriv->mac80211.vendor = PEER_ATH;
1957                 matched = true;
1958         } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1959                 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1960                 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1961                 rtlpriv->mac80211.vendor = PEER_BROAD;
1962                 matched = true;
1963         } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1964                 rtlpriv->mac80211.vendor = PEER_RAL;
1965                 matched = true;
1966         } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1967                 rtlpriv->mac80211.vendor = PEER_CISCO;
1968                 matched = true;
1969         } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1970                 rtlpriv->mac80211.vendor = PEER_MARV;
1971                 matched = true;
1972         }
1973
1974         return matched;
1975 }
1976
1977 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1978                 unsigned int len)
1979 {
1980         struct ieee80211_mgmt *mgmt = (void *)data;
1981         struct octet_string vendor_ie;
1982         u8 *pos, *end;
1983
1984         pos = (u8 *)mgmt->u.beacon.variable;
1985         end = data + len;
1986         while (pos < end) {
1987                 if (pos[0] == 221) {
1988                         vendor_ie.length = pos[1];
1989                         vendor_ie.octet = &pos[2];
1990                         if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1991                                 return true;
1992                 }
1993
1994                 if (pos + 2 + pos[1] > end)
1995                         return false;
1996
1997                 pos += 2 + pos[1];
1998         }
1999         return false;
2000 }
2001
2002 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2003 {
2004         struct rtl_priv *rtlpriv = rtl_priv(hw);
2005         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2006         struct ieee80211_hdr *hdr = (void *)data;
2007         u32 vendor = PEER_UNKNOWN;
2008
2009         static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2010         static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2011         static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2012         static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2013         static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2014         static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2015         static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2016         static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2017         static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2018         static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2019         static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2020         static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2021         static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2022         static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2023         static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2024         static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2025
2026         if (mac->opmode != NL80211_IFTYPE_STATION)
2027                 return;
2028
2029         if (mac->link_state == MAC80211_NOLINK) {
2030                 mac->vendor = PEER_UNKNOWN;
2031                 return;
2032         }
2033
2034         if (mac->cnt_after_linked > 2)
2035                 return;
2036
2037         /* check if this really is a beacon */
2038         if (!ieee80211_is_beacon(hdr->frame_control))
2039                 return;
2040
2041         /* min. beacon length + FCS_LEN */
2042         if (len <= 40 + FCS_LEN)
2043                 return;
2044
2045         /* and only beacons from the associated BSSID, please */
2046         if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2047                 return;
2048
2049         if (rtl_find_221_ie(hw, data, len))
2050                 vendor = mac->vendor;
2051
2052         if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2053                 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2054                 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2055                 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2056                 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2057                 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2058                 vendor == PEER_ATH) {
2059                 vendor = PEER_ATH;
2060                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2061         } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2062                 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2063                 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2064                 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2065                 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2066                 vendor == PEER_RAL) {
2067                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2068                 vendor = PEER_RAL;
2069         } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2070                 vendor == PEER_CISCO) {
2071                 vendor = PEER_CISCO;
2072                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2073         } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2074                 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2075                 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2076                 vendor == PEER_BROAD) {
2077                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2078                 vendor = PEER_BROAD;
2079         } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2080                 vendor == PEER_MARV) {
2081                 vendor = PEER_MARV;
2082                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2083         }
2084
2085         mac->vendor = vendor;
2086 }
2087 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2088
2089 /*********************************************************
2090  *
2091  * sysfs functions
2092  *
2093  *********************************************************/
2094 static ssize_t rtl_show_debug_level(struct device *d,
2095                                     struct device_attribute *attr, char *buf)
2096 {
2097         struct ieee80211_hw *hw = dev_get_drvdata(d);
2098         struct rtl_priv *rtlpriv = rtl_priv(hw);
2099
2100         return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
2101 }
2102
2103 static ssize_t rtl_store_debug_level(struct device *d,
2104                                      struct device_attribute *attr,
2105                                      const char *buf, size_t count)
2106 {
2107         struct ieee80211_hw *hw = dev_get_drvdata(d);
2108         struct rtl_priv *rtlpriv = rtl_priv(hw);
2109         unsigned long val;
2110         int ret;
2111
2112         ret = kstrtoul(buf, 0, &val);
2113         if (ret) {
2114                 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2115                          "%s is not in hex or decimal form.\n", buf);
2116         } else {
2117                 rtlpriv->dbg.global_debuglevel = val;
2118                 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2119                          "debuglevel:%x\n",
2120                          rtlpriv->dbg.global_debuglevel);
2121         }
2122
2123         return strnlen(buf, count);
2124 }
2125
2126 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
2127                    rtl_show_debug_level, rtl_store_debug_level);
2128
2129 static struct attribute *rtl_sysfs_entries[] = {
2130
2131         &dev_attr_debug_level.attr,
2132
2133         NULL
2134 };
2135
2136 /*
2137  * "name" is folder name witch will be
2138  * put in device directory like :
2139  * sys/devices/pci0000:00/0000:00:1c.4/
2140  * 0000:06:00.0/rtl_sysfs
2141  */
2142 struct attribute_group rtl_attribute_group = {
2143         .name = "rtlsysfs",
2144         .attrs = rtl_sysfs_entries,
2145 };
2146 EXPORT_SYMBOL_GPL(rtl_attribute_group);
2147
2148 MODULE_AUTHOR("lizhaoming       <chaoming_li@realsil.com.cn>");
2149 MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
2150 MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
2151 MODULE_LICENSE("GPL");
2152 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2153
2154 struct rtl_global_var rtl_global_var = {};
2155 EXPORT_SYMBOL_GPL(rtl_global_var);
2156
2157 static int __init rtl_core_module_init(void)
2158 {
2159         if (rtl_rate_control_register())
2160                 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2161
2162         /* init some global vars */
2163         INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2164         spin_lock_init(&rtl_global_var.glb_list_lock);
2165
2166         return 0;
2167 }
2168
2169 static void __exit rtl_core_module_exit(void)
2170 {
2171         /*RC*/
2172         rtl_rate_control_unregister();
2173 }
2174
2175 module_init(rtl_core_module_init);
2176 module_exit(rtl_core_module_exit);