linux/drivers/net/wireless/realtek/rtlwifi/base.c
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   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 *********************************************************/
  63static 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
  80static 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
 107static 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
 122static 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
 133static const struct ieee80211_supported_band rtl_band_2ghz = {
 134        .band = NL80211_BAND_2GHZ,
 135
 136        .channels = rtl_channeltable_2g,
 137        .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
 138
 139        .bitrates = rtl_ratetable_2g,
 140        .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
 141
 142        .ht_cap = {0},
 143};
 144
 145static struct ieee80211_supported_band rtl_band_5ghz = {
 146        .band = NL80211_BAND_5GHZ,
 147
 148        .channels = rtl_channeltable_5g,
 149        .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
 150
 151        .bitrates = rtl_ratetable_5g,
 152        .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
 153
 154        .ht_cap = {0},
 155};
 156
 157static 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
 168u8 rtl_tid_to_ac(u8 tid)
 169{
 170        return tid_to_ac[tid];
 171}
 172EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
 173
 174static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
 175                                  struct ieee80211_sta_ht_cap *ht_cap)
 176{
 177        struct rtl_priv *rtlpriv = rtl_priv(hw);
 178        struct rtl_phy *rtlphy = &(rtlpriv->phy);
 179
 180        ht_cap->ht_supported = true;
 181        ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 182            IEEE80211_HT_CAP_SGI_40 |
 183            IEEE80211_HT_CAP_SGI_20 |
 184            IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
 185
 186        if (rtlpriv->rtlhal.disable_amsdu_8k)
 187                ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
 188
 189        /*
 190         *Maximum length of AMPDU that the STA can receive.
 191         *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
 192         */
 193        ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 194
 195        /*Minimum MPDU start spacing , */
 196        ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
 197
 198        ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 199
 200        /*hw->wiphy->bands[NL80211_BAND_2GHZ]
 201         *base on ant_num
 202         *rx_mask: RX mask
 203         *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
 204         *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
 205         *if rx_ant >= 3 rx_mask[2]= 0xff;
 206         *if BW_40 rx_mask[4]= 0x01;
 207         *highest supported RX rate
 208         */
 209        if (rtlpriv->dm.supp_phymode_switch) {
 210                pr_info("Support phy mode switch\n");
 211
 212                ht_cap->mcs.rx_mask[0] = 0xFF;
 213                ht_cap->mcs.rx_mask[1] = 0xFF;
 214                ht_cap->mcs.rx_mask[4] = 0x01;
 215
 216                ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 217        } else {
 218                if (get_rf_type(rtlphy) == RF_1T2R ||
 219                    get_rf_type(rtlphy) == RF_2T2R) {
 220                        RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 221                                 "1T2R or 2T2R\n");
 222                        ht_cap->mcs.rx_mask[0] = 0xFF;
 223                        ht_cap->mcs.rx_mask[1] = 0xFF;
 224                        ht_cap->mcs.rx_mask[4] = 0x01;
 225
 226                        ht_cap->mcs.rx_highest =
 227                                 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
 228                } else if (get_rf_type(rtlphy) == RF_1T1R) {
 229                        RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
 230
 231                        ht_cap->mcs.rx_mask[0] = 0xFF;
 232                        ht_cap->mcs.rx_mask[1] = 0x00;
 233                        ht_cap->mcs.rx_mask[4] = 0x01;
 234
 235                        ht_cap->mcs.rx_highest =
 236                                 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
 237                }
 238        }
 239}
 240
 241static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
 242                                   struct ieee80211_sta_vht_cap *vht_cap)
 243{
 244        struct rtl_priv *rtlpriv = rtl_priv(hw);
 245        struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 246
 247        if (!(rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT))
 248                return;
 249
 250        if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE ||
 251            rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) {
 252                u16 mcs_map;
 253
 254                vht_cap->vht_supported = true;
 255                vht_cap->cap =
 256                        IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 257                        IEEE80211_VHT_CAP_SHORT_GI_80 |
 258                        IEEE80211_VHT_CAP_TXSTBC |
 259                        IEEE80211_VHT_CAP_RXSTBC_1 |
 260                        IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 261                        IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 262                        IEEE80211_VHT_CAP_HTC_VHT |
 263                        IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 264                        IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 265                        IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 266                        0;
 267
 268                mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 269                        IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
 270                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 271                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 272                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 273                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 274                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 275                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 276
 277                vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 278                vht_cap->vht_mcs.rx_highest =
 279                        cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 280                vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 281                vht_cap->vht_mcs.tx_highest =
 282                        cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
 283        } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
 284                u16 mcs_map;
 285
 286                vht_cap->vht_supported = true;
 287                vht_cap->cap =
 288                        IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 289                        IEEE80211_VHT_CAP_SHORT_GI_80 |
 290                        IEEE80211_VHT_CAP_TXSTBC |
 291                        IEEE80211_VHT_CAP_RXSTBC_1 |
 292                        IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
 293                        IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 294                        IEEE80211_VHT_CAP_HTC_VHT |
 295                        IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 296                        IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
 297                        IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
 298                        0;
 299
 300                mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
 301                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
 302                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
 303                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
 304                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
 305                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
 306                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
 307                        IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
 308
 309                vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 310                vht_cap->vht_mcs.rx_highest =
 311                        cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 312                vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
 313                vht_cap->vht_mcs.tx_highest =
 314                        cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
 315        }
 316}
 317
 318static void _rtl_init_mac80211(struct ieee80211_hw *hw)
 319{
 320        struct rtl_priv *rtlpriv = rtl_priv(hw);
 321        struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 322        struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 323        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 324        struct ieee80211_supported_band *sband;
 325
 326        if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
 327            rtlhal->bandset == BAND_ON_BOTH) {
 328                /* 1: 2.4 G bands */
 329                /* <1> use  mac->bands as mem for hw->wiphy->bands */
 330                sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
 331
 332                /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
 333                 * to default value(1T1R) */
 334                memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz,
 335                                sizeof(struct ieee80211_supported_band));
 336
 337                /* <3> init ht cap base on ant_num */
 338                _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 339
 340                /* <4> set mac->sband to wiphy->sband */
 341                hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
 342
 343                /* 2: 5 G bands */
 344                /* <1> use  mac->bands as mem for hw->wiphy->bands */
 345                sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
 346
 347                /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
 348                 * to default value(1T1R) */
 349                memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz,
 350                                sizeof(struct ieee80211_supported_band));
 351
 352                /* <3> init ht cap base on ant_num */
 353                _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 354
 355                _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 356                /* <4> set mac->sband to wiphy->sband */
 357                hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
 358        } else {
 359                if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 360                        /* <1> use  mac->bands as mem for hw->wiphy->bands */
 361                        sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
 362
 363                        /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
 364                         * to default value(1T1R) */
 365                        memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]),
 366                               &rtl_band_2ghz,
 367                               sizeof(struct ieee80211_supported_band));
 368
 369                        /* <3> init ht cap base on ant_num */
 370                        _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 371
 372                        /* <4> set mac->sband to wiphy->sband */
 373                        hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
 374                } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 375                        /* <1> use  mac->bands as mem for hw->wiphy->bands */
 376                        sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
 377
 378                        /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
 379                         * to default value(1T1R) */
 380                        memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]),
 381                               &rtl_band_5ghz,
 382                               sizeof(struct ieee80211_supported_band));
 383
 384                        /* <3> init ht cap base on ant_num */
 385                        _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 386
 387                        _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
 388                        /* <4> set mac->sband to wiphy->sband */
 389                        hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
 390                } else {
 391                        pr_err("Err BAND %d\n",
 392                               rtlhal->current_bandtype);
 393                }
 394        }
 395        /* <5> set hw caps */
 396        ieee80211_hw_set(hw, SIGNAL_DBM);
 397        ieee80211_hw_set(hw, RX_INCLUDES_FCS);
 398        ieee80211_hw_set(hw, AMPDU_AGGREGATION);
 399        ieee80211_hw_set(hw, CONNECTION_MONITOR);
 400        ieee80211_hw_set(hw, MFP_CAPABLE);
 401        ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
 402        ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
 403        ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
 404
 405        /* swlps or hwlps has been set in diff chip in init_sw_vars */
 406        if (rtlpriv->psc.swctrl_lps) {
 407                ieee80211_hw_set(hw, SUPPORTS_PS);
 408                ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
 409        }
 410        if (rtlpriv->psc.fwctrl_lps) {
 411                ieee80211_hw_set(hw, SUPPORTS_PS);
 412                ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
 413        }
 414        hw->wiphy->interface_modes =
 415            BIT(NL80211_IFTYPE_AP) |
 416            BIT(NL80211_IFTYPE_STATION) |
 417            BIT(NL80211_IFTYPE_ADHOC) |
 418            BIT(NL80211_IFTYPE_MESH_POINT) |
 419            BIT(NL80211_IFTYPE_P2P_CLIENT) |
 420            BIT(NL80211_IFTYPE_P2P_GO);
 421        hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 422
 423        hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 424
 425        hw->wiphy->rts_threshold = 2347;
 426
 427        hw->queues = AC_MAX;
 428        hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
 429
 430        /* TODO: Correct this value for our hw */
 431        hw->max_listen_interval = MAX_LISTEN_INTERVAL;
 432        hw->max_rate_tries = MAX_RATE_TRIES;
 433        /* hw->max_rates = 1; */
 434        hw->sta_data_size = sizeof(struct rtl_sta_info);
 435
 436/* wowlan is not supported by kernel if CONFIG_PM is not defined */
 437#ifdef CONFIG_PM
 438        if (rtlpriv->psc.wo_wlan_mode) {
 439                if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
 440                        rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
 441                if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
 442                        rtlpriv->wowlan.n_patterns =
 443                                MAX_SUPPORT_WOL_PATTERN_NUM;
 444                        rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
 445                        rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
 446                }
 447                hw->wiphy->wowlan = &rtlpriv->wowlan;
 448        }
 449#endif
 450
 451        /* <6> mac address */
 452        if (is_valid_ether_addr(rtlefuse->dev_addr)) {
 453                SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
 454        } else {
 455                u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
 456                get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
 457                SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
 458        }
 459}
 460
 461static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
 462{
 463        struct rtl_priv *rtlpriv = rtl_priv(hw);
 464
 465        /* <1> timer */
 466        timer_setup(&rtlpriv->works.watchdog_timer,
 467                    rtl_watch_dog_timer_callback, 0);
 468        timer_setup(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
 469                    rtl_easy_concurrent_retrytimer_callback, 0);
 470        /* <2> work queue */
 471        rtlpriv->works.hw = hw;
 472        rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
 473        INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
 474                          (void *)rtl_watchdog_wq_callback);
 475        INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
 476                          (void *)rtl_ips_nic_off_wq_callback);
 477        INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
 478                          (void *)rtl_swlps_wq_callback);
 479        INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
 480                          (void *)rtl_swlps_rfon_wq_callback);
 481        INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
 482                          (void *)rtl_fwevt_wq_callback);
 483        INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq,
 484                          (void *)rtl_c2hcmd_wq_callback);
 485
 486}
 487
 488void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
 489{
 490        struct rtl_priv *rtlpriv = rtl_priv(hw);
 491
 492        del_timer_sync(&rtlpriv->works.watchdog_timer);
 493
 494        cancel_delayed_work(&rtlpriv->works.watchdog_wq);
 495        cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
 496        cancel_delayed_work(&rtlpriv->works.ps_work);
 497        cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 498        cancel_delayed_work(&rtlpriv->works.fwevt_wq);
 499        cancel_delayed_work(&rtlpriv->works.c2hcmd_wq);
 500}
 501EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
 502
 503void rtl_init_rfkill(struct ieee80211_hw *hw)
 504{
 505        struct rtl_priv *rtlpriv = rtl_priv(hw);
 506
 507        bool radio_state;
 508        bool blocked;
 509        u8 valid = 0;
 510
 511        /*set init state to on */
 512        rtlpriv->rfkill.rfkill_state = true;
 513        wiphy_rfkill_set_hw_state(hw->wiphy, 0);
 514
 515        radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
 516
 517        if (valid) {
 518                pr_info("rtlwifi: wireless switch is %s\n",
 519                        rtlpriv->rfkill.rfkill_state ? "on" : "off");
 520
 521                rtlpriv->rfkill.rfkill_state = radio_state;
 522
 523                blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
 524                wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
 525        }
 526
 527        wiphy_rfkill_start_polling(hw->wiphy);
 528}
 529EXPORT_SYMBOL(rtl_init_rfkill);
 530
 531void rtl_deinit_rfkill(struct ieee80211_hw *hw)
 532{
 533        wiphy_rfkill_stop_polling(hw->wiphy);
 534}
 535EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
 536
 537int rtl_init_core(struct ieee80211_hw *hw)
 538{
 539        struct rtl_priv *rtlpriv = rtl_priv(hw);
 540        struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 541
 542        /* <1> init mac80211 */
 543        _rtl_init_mac80211(hw);
 544        rtlmac->hw = hw;
 545
 546        /* <2> rate control register */
 547        hw->rate_control_algorithm = "rtl_rc";
 548
 549        /*
 550         * <3> init CRDA must come after init
 551         * mac80211 hw  in _rtl_init_mac80211.
 552         */
 553        if (rtl_regd_init(hw, rtl_reg_notifier)) {
 554                pr_err("REGD init failed\n");
 555                return 1;
 556        }
 557
 558        /* <4> locks */
 559        mutex_init(&rtlpriv->locks.conf_mutex);
 560        mutex_init(&rtlpriv->locks.ips_mutex);
 561        mutex_init(&rtlpriv->locks.lps_mutex);
 562        spin_lock_init(&rtlpriv->locks.irq_th_lock);
 563        spin_lock_init(&rtlpriv->locks.h2c_lock);
 564        spin_lock_init(&rtlpriv->locks.rf_ps_lock);
 565        spin_lock_init(&rtlpriv->locks.rf_lock);
 566        spin_lock_init(&rtlpriv->locks.waitq_lock);
 567        spin_lock_init(&rtlpriv->locks.entry_list_lock);
 568        spin_lock_init(&rtlpriv->locks.c2hcmd_lock);
 569        spin_lock_init(&rtlpriv->locks.scan_list_lock);
 570        spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
 571        spin_lock_init(&rtlpriv->locks.fw_ps_lock);
 572        spin_lock_init(&rtlpriv->locks.iqk_lock);
 573        /* <5> init list */
 574        INIT_LIST_HEAD(&rtlpriv->entry_list);
 575        INIT_LIST_HEAD(&rtlpriv->c2hcmd_list);
 576        INIT_LIST_HEAD(&rtlpriv->scan_list.list);
 577
 578        rtlmac->link_state = MAC80211_NOLINK;
 579
 580        /* <6> init deferred work */
 581        _rtl_init_deferred_work(hw);
 582
 583        return 0;
 584}
 585EXPORT_SYMBOL_GPL(rtl_init_core);
 586
 587static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
 588
 589void rtl_deinit_core(struct ieee80211_hw *hw)
 590{
 591        rtl_c2hcmd_launcher(hw, 0);
 592        rtl_free_entries_from_scan_list(hw);
 593}
 594EXPORT_SYMBOL_GPL(rtl_deinit_core);
 595
 596void rtl_init_rx_config(struct ieee80211_hw *hw)
 597{
 598        struct rtl_priv *rtlpriv = rtl_priv(hw);
 599        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 600
 601        rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
 602}
 603EXPORT_SYMBOL_GPL(rtl_init_rx_config);
 604
 605/*********************************************************
 606 *
 607 * tx information functions
 608 *
 609 *********************************************************/
 610static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
 611                                          struct rtl_tcb_desc *tcb_desc,
 612                                          struct ieee80211_tx_info *info)
 613{
 614        struct rtl_priv *rtlpriv = rtl_priv(hw);
 615        u8 rate_flag = info->control.rates[0].flags;
 616
 617        tcb_desc->use_shortpreamble = false;
 618
 619        /* 1M can only use Long Preamble. 11B spec */
 620        if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
 621                return;
 622        else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 623                tcb_desc->use_shortpreamble = true;
 624
 625        return;
 626}
 627
 628static void _rtl_query_shortgi(struct ieee80211_hw *hw,
 629                               struct ieee80211_sta *sta,
 630                               struct rtl_tcb_desc *tcb_desc,
 631                               struct ieee80211_tx_info *info)
 632{
 633        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 634        u8 rate_flag = info->control.rates[0].flags;
 635        u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
 636        u8 sgi_80 = 0, bw_80 = 0;
 637        tcb_desc->use_shortgi = false;
 638
 639        if (sta == NULL)
 640                return;
 641
 642        sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
 643        sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
 644        sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
 645
 646        if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
 647                return;
 648
 649        if (!sgi_40 && !sgi_20)
 650                return;
 651
 652        if (mac->opmode == NL80211_IFTYPE_STATION) {
 653                bw_40 = mac->bw_40;
 654                bw_80 = mac->bw_80;
 655        } else if (mac->opmode == NL80211_IFTYPE_AP ||
 656                 mac->opmode == NL80211_IFTYPE_ADHOC ||
 657                 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 658                bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 659                bw_80 = sta->vht_cap.vht_supported;
 660        }
 661
 662        if (bw_80) {
 663                if (sgi_80)
 664                        tcb_desc->use_shortgi = true;
 665                else
 666                        tcb_desc->use_shortgi = false;
 667        } else {
 668                if (bw_40 && sgi_40)
 669                        tcb_desc->use_shortgi = true;
 670                else if (!bw_40 && sgi_20)
 671                        tcb_desc->use_shortgi = true;
 672        }
 673
 674        if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
 675                tcb_desc->use_shortgi = false;
 676}
 677
 678static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
 679                                       struct rtl_tcb_desc *tcb_desc,
 680                                       struct ieee80211_tx_info *info)
 681{
 682        struct rtl_priv *rtlpriv = rtl_priv(hw);
 683        u8 rate_flag = info->control.rates[0].flags;
 684
 685        /* Common Settings */
 686        tcb_desc->rts_stbc = false;
 687        tcb_desc->cts_enable = false;
 688        tcb_desc->rts_sc = 0;
 689        tcb_desc->rts_bw = false;
 690        tcb_desc->rts_use_shortpreamble = false;
 691        tcb_desc->rts_use_shortgi = false;
 692
 693        if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 694                /* Use CTS-to-SELF in protection mode. */
 695                tcb_desc->rts_enable = true;
 696                tcb_desc->cts_enable = true;
 697                tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 698        } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
 699                /* Use RTS-CTS in protection mode. */
 700                tcb_desc->rts_enable = true;
 701                tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 702        }
 703}
 704
 705u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
 706                            enum wireless_mode wirelessmode)
 707{
 708        struct rtl_priv *rtlpriv = rtl_priv(hw);
 709        struct rtl_phy *rtlphy = &rtlpriv->phy;
 710        u8 ret = 0;
 711
 712        switch (rate_index) {
 713        case RATR_INX_WIRELESS_NGB:
 714                if (rtlphy->rf_type == RF_1T1R)
 715                        ret = RATEID_IDX_BGN_40M_1SS;
 716                else
 717                        ret = RATEID_IDX_BGN_40M_2SS;
 718                ; break;
 719        case RATR_INX_WIRELESS_N:
 720        case RATR_INX_WIRELESS_NG:
 721                if (rtlphy->rf_type == RF_1T1R)
 722                        ret = RATEID_IDX_GN_N1SS;
 723                else
 724                        ret = RATEID_IDX_GN_N2SS;
 725                ; break;
 726        case RATR_INX_WIRELESS_NB:
 727                if (rtlphy->rf_type == RF_1T1R)
 728                        ret = RATEID_IDX_BGN_20M_1SS_BN;
 729                else
 730                        ret = RATEID_IDX_BGN_20M_2SS_BN;
 731                ; break;
 732        case RATR_INX_WIRELESS_GB:
 733                ret = RATEID_IDX_BG;
 734                break;
 735        case RATR_INX_WIRELESS_G:
 736                ret = RATEID_IDX_G;
 737                break;
 738        case RATR_INX_WIRELESS_B:
 739                ret = RATEID_IDX_B;
 740                break;
 741        case RATR_INX_WIRELESS_MC:
 742                if (wirelessmode == WIRELESS_MODE_B ||
 743                    wirelessmode == WIRELESS_MODE_G ||
 744                    wirelessmode == WIRELESS_MODE_N_24G ||
 745                    wirelessmode == WIRELESS_MODE_AC_24G)
 746                        ret = RATEID_IDX_BG;
 747                else
 748                        ret = RATEID_IDX_G;
 749                break;
 750        case RATR_INX_WIRELESS_AC_5N:
 751                if (rtlphy->rf_type == RF_1T1R)
 752                        ret = RATEID_IDX_VHT_1SS;
 753                else
 754                        ret = RATEID_IDX_VHT_2SS;
 755                break;
 756        case RATR_INX_WIRELESS_AC_24N:
 757                if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
 758                        if (rtlphy->rf_type == RF_1T1R)
 759                                ret = RATEID_IDX_VHT_1SS;
 760                        else
 761                                ret = RATEID_IDX_VHT_2SS;
 762                } else {
 763                        if (rtlphy->rf_type == RF_1T1R)
 764                                ret = RATEID_IDX_MIX1;
 765                        else
 766                                ret = RATEID_IDX_MIX2;
 767                }
 768                break;
 769        default:
 770                ret = RATEID_IDX_BGN_40M_2SS;
 771                break;
 772        }
 773        return ret;
 774}
 775EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id);
 776
 777static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
 778                                   struct ieee80211_sta *sta,
 779                                   struct rtl_tcb_desc *tcb_desc)
 780{
 781#define SET_RATE_ID(rate_id)                                    \
 782        ({typeof(rate_id) _id = rate_id;                        \
 783          ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?     \
 784                rtl_mrate_idx_to_arfr_id(hw, _id,               \
 785                        (sta_entry ? sta_entry->wireless_mode : \
 786                         WIRELESS_MODE_G)) :                    \
 787                _id); })
 788
 789        struct rtl_priv *rtlpriv = rtl_priv(hw);
 790        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 791        struct rtl_sta_info *sta_entry = NULL;
 792        u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
 793
 794        if (sta) {
 795                sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 796                ratr_index = sta_entry->ratr_index;
 797        }
 798        if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
 799                if (mac->opmode == NL80211_IFTYPE_STATION) {
 800                        tcb_desc->ratr_index = 0;
 801                } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
 802                                mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 803                        if (tcb_desc->multicast || tcb_desc->broadcast) {
 804                                tcb_desc->hw_rate =
 805                                    rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
 806                                tcb_desc->use_driver_rate = 1;
 807                                tcb_desc->ratr_index =
 808                                        SET_RATE_ID(RATR_INX_WIRELESS_MC);
 809                        } else {
 810                                tcb_desc->ratr_index = ratr_index;
 811                        }
 812                } else if (mac->opmode == NL80211_IFTYPE_AP) {
 813                        tcb_desc->ratr_index = ratr_index;
 814                }
 815        }
 816
 817        if (rtlpriv->dm.useramask) {
 818                tcb_desc->ratr_index = ratr_index;
 819                /* TODO we will differentiate adhoc and station future  */
 820                if (mac->opmode == NL80211_IFTYPE_STATION ||
 821                    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 822                        tcb_desc->mac_id = 0;
 823
 824                        if (sta &&
 825                            (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
 826                                ;       /* use sta_entry->ratr_index */
 827                        else if (mac->mode == WIRELESS_MODE_AC_5G)
 828                                tcb_desc->ratr_index =
 829                                        SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
 830                        else if (mac->mode == WIRELESS_MODE_AC_24G)
 831                                tcb_desc->ratr_index =
 832                                        SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
 833                        else if (mac->mode == WIRELESS_MODE_N_24G)
 834                                tcb_desc->ratr_index =
 835                                        SET_RATE_ID(RATR_INX_WIRELESS_NGB);
 836                        else if (mac->mode == WIRELESS_MODE_N_5G)
 837                                tcb_desc->ratr_index =
 838                                        SET_RATE_ID(RATR_INX_WIRELESS_NG);
 839                        else if (mac->mode & WIRELESS_MODE_G)
 840                                tcb_desc->ratr_index =
 841                                        SET_RATE_ID(RATR_INX_WIRELESS_GB);
 842                        else if (mac->mode & WIRELESS_MODE_B)
 843                                tcb_desc->ratr_index =
 844                                        SET_RATE_ID(RATR_INX_WIRELESS_B);
 845                        else if (mac->mode & WIRELESS_MODE_A)
 846                                tcb_desc->ratr_index =
 847                                        SET_RATE_ID(RATR_INX_WIRELESS_G);
 848
 849                } else if (mac->opmode == NL80211_IFTYPE_AP ||
 850                        mac->opmode == NL80211_IFTYPE_ADHOC) {
 851                        if (NULL != sta) {
 852                                if (sta->aid > 0)
 853                                        tcb_desc->mac_id = sta->aid + 1;
 854                                else
 855                                        tcb_desc->mac_id = 1;
 856                        } else {
 857                                tcb_desc->mac_id = 0;
 858                        }
 859                }
 860        }
 861#undef SET_RATE_ID
 862}
 863
 864static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
 865                                      struct ieee80211_sta *sta,
 866                                      struct rtl_tcb_desc *tcb_desc)
 867{
 868        struct rtl_priv *rtlpriv = rtl_priv(hw);
 869        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 870
 871        tcb_desc->packet_bw = false;
 872        if (!sta)
 873                return;
 874        if (mac->opmode == NL80211_IFTYPE_AP ||
 875            mac->opmode == NL80211_IFTYPE_ADHOC ||
 876            mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 877                if (!(sta->ht_cap.ht_supported) ||
 878                    !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
 879                        return;
 880        } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 881                if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
 882                        return;
 883        }
 884        if (tcb_desc->multicast || tcb_desc->broadcast)
 885                return;
 886
 887        /*use legency rate, shall use 20MHz */
 888        if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
 889                return;
 890
 891        tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
 892
 893        if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) {
 894                if (mac->opmode == NL80211_IFTYPE_AP ||
 895                    mac->opmode == NL80211_IFTYPE_ADHOC ||
 896                    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 897                        if (!(sta->vht_cap.vht_supported))
 898                                return;
 899                } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 900                        if (!mac->bw_80 ||
 901                            !(sta->vht_cap.vht_supported))
 902                                return;
 903                }
 904                if (tcb_desc->hw_rate <=
 905                        rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
 906                        return;
 907                tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
 908        }
 909}
 910
 911static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
 912                                      struct ieee80211_sta *sta)
 913{
 914        struct rtl_priv *rtlpriv = rtl_priv(hw);
 915        struct rtl_phy *rtlphy = &(rtlpriv->phy);
 916        u8 hw_rate;
 917        u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
 918
 919        if ((get_rf_type(rtlphy) == RF_2T2R) &&
 920            (tx_mcs_map & 0x000c) != 0x000c) {
 921                if ((tx_mcs_map & 0x000c) >> 2 ==
 922                        IEEE80211_VHT_MCS_SUPPORT_0_7)
 923                        hw_rate =
 924                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
 925                else if ((tx_mcs_map  & 0x000c) >> 2 ==
 926                        IEEE80211_VHT_MCS_SUPPORT_0_8)
 927                        hw_rate =
 928                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
 929                else
 930                        hw_rate =
 931                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
 932        } else {
 933                if ((tx_mcs_map  & 0x0003) ==
 934                        IEEE80211_VHT_MCS_SUPPORT_0_7)
 935                        hw_rate =
 936                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
 937                else if ((tx_mcs_map  & 0x0003) ==
 938                        IEEE80211_VHT_MCS_SUPPORT_0_8)
 939                        hw_rate =
 940                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
 941                else
 942                        hw_rate =
 943                        rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
 944        }
 945
 946        return hw_rate;
 947}
 948
 949static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
 950                                  struct ieee80211_sta *sta)
 951{
 952        struct rtl_priv *rtlpriv = rtl_priv(hw);
 953        struct rtl_phy *rtlphy = &rtlpriv->phy;
 954        u8 hw_rate;
 955
 956        if (get_rf_type(rtlphy) == RF_2T2R &&
 957            sta->ht_cap.mcs.rx_mask[1] != 0)
 958                hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
 959        else
 960                hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
 961
 962        return hw_rate;
 963}
 964
 965/* mac80211's rate_idx is like this:
 966 *
 967 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
 968 *
 969 * B/G rate:
 970 * (rx_status->flag & RX_FLAG_HT) = 0,
 971 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
 972 *
 973 * N rate:
 974 * (rx_status->flag & RX_FLAG_HT) = 1,
 975 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 976 *
 977 * 5G band:rx_status->band == NL80211_BAND_5GHZ
 978 * A rate:
 979 * (rx_status->flag & RX_FLAG_HT) = 0,
 980 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
 981 *
 982 * N rate:
 983 * (rx_status->flag & RX_FLAG_HT) = 1,
 984 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
 985 *
 986 * VHT rates:
 987 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
 988 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
 989 */
 990int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
 991                         u8 desc_rate)
 992{
 993        int rate_idx;
 994
 995        if (isvht) {
 996                switch (desc_rate) {
 997                case DESC_RATEVHT1SS_MCS0:
 998                        rate_idx = 0;
 999                        break;
1000                case DESC_RATEVHT1SS_MCS1:
1001                        rate_idx = 1;
1002                        break;
1003                case DESC_RATEVHT1SS_MCS2:
1004                        rate_idx = 2;
1005                        break;
1006                case DESC_RATEVHT1SS_MCS3:
1007                        rate_idx = 3;
1008                        break;
1009                case DESC_RATEVHT1SS_MCS4:
1010                        rate_idx = 4;
1011                        break;
1012                case DESC_RATEVHT1SS_MCS5:
1013                        rate_idx = 5;
1014                        break;
1015                case DESC_RATEVHT1SS_MCS6:
1016                        rate_idx = 6;
1017                        break;
1018                case DESC_RATEVHT1SS_MCS7:
1019                        rate_idx = 7;
1020                        break;
1021                case DESC_RATEVHT1SS_MCS8:
1022                        rate_idx = 8;
1023                        break;
1024                case DESC_RATEVHT1SS_MCS9:
1025                        rate_idx = 9;
1026                        break;
1027                case DESC_RATEVHT2SS_MCS0:
1028                        rate_idx = 0;
1029                        break;
1030                case DESC_RATEVHT2SS_MCS1:
1031                        rate_idx = 1;
1032                        break;
1033                case DESC_RATEVHT2SS_MCS2:
1034                        rate_idx = 2;
1035                        break;
1036                case DESC_RATEVHT2SS_MCS3:
1037                        rate_idx = 3;
1038                        break;
1039                case DESC_RATEVHT2SS_MCS4:
1040                        rate_idx = 4;
1041                        break;
1042                case DESC_RATEVHT2SS_MCS5:
1043                        rate_idx = 5;
1044                        break;
1045                case DESC_RATEVHT2SS_MCS6:
1046                        rate_idx = 6;
1047                        break;
1048                case DESC_RATEVHT2SS_MCS7:
1049                        rate_idx = 7;
1050                        break;
1051                case DESC_RATEVHT2SS_MCS8:
1052                        rate_idx = 8;
1053                        break;
1054                case DESC_RATEVHT2SS_MCS9:
1055                        rate_idx = 9;
1056                        break;
1057                default:
1058                        rate_idx = 0;
1059                        break;
1060                }
1061                return rate_idx;
1062        }
1063        if (false == isht) {
1064                if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
1065                        switch (desc_rate) {
1066                        case DESC_RATE1M:
1067                                rate_idx = 0;
1068                                break;
1069                        case DESC_RATE2M:
1070                                rate_idx = 1;
1071                                break;
1072                        case DESC_RATE5_5M:
1073                                rate_idx = 2;
1074                                break;
1075                        case DESC_RATE11M:
1076                                rate_idx = 3;
1077                                break;
1078                        case DESC_RATE6M:
1079                                rate_idx = 4;
1080                                break;
1081                        case DESC_RATE9M:
1082                                rate_idx = 5;
1083                                break;
1084                        case DESC_RATE12M:
1085                                rate_idx = 6;
1086                                break;
1087                        case DESC_RATE18M:
1088                                rate_idx = 7;
1089                                break;
1090                        case DESC_RATE24M:
1091                                rate_idx = 8;
1092                                break;
1093                        case DESC_RATE36M:
1094                                rate_idx = 9;
1095                                break;
1096                        case DESC_RATE48M:
1097                                rate_idx = 10;
1098                                break;
1099                        case DESC_RATE54M:
1100                                rate_idx = 11;
1101                                break;
1102                        default:
1103                                rate_idx = 0;
1104                                break;
1105                        }
1106                } else {
1107                        switch (desc_rate) {
1108                        case DESC_RATE6M:
1109                                rate_idx = 0;
1110                                break;
1111                        case DESC_RATE9M:
1112                                rate_idx = 1;
1113                                break;
1114                        case DESC_RATE12M:
1115                                rate_idx = 2;
1116                                break;
1117                        case DESC_RATE18M:
1118                                rate_idx = 3;
1119                                break;
1120                        case DESC_RATE24M:
1121                                rate_idx = 4;
1122                                break;
1123                        case DESC_RATE36M:
1124                                rate_idx = 5;
1125                                break;
1126                        case DESC_RATE48M:
1127                                rate_idx = 6;
1128                                break;
1129                        case DESC_RATE54M:
1130                                rate_idx = 7;
1131                                break;
1132                        default:
1133                                rate_idx = 0;
1134                                break;
1135                        }
1136                }
1137        } else {
1138                switch (desc_rate) {
1139                case DESC_RATEMCS0:
1140                        rate_idx = 0;
1141                        break;
1142                case DESC_RATEMCS1:
1143                        rate_idx = 1;
1144                        break;
1145                case DESC_RATEMCS2:
1146                        rate_idx = 2;
1147                        break;
1148                case DESC_RATEMCS3:
1149                        rate_idx = 3;
1150                        break;
1151                case DESC_RATEMCS4:
1152                        rate_idx = 4;
1153                        break;
1154                case DESC_RATEMCS5:
1155                        rate_idx = 5;
1156                        break;
1157                case DESC_RATEMCS6:
1158                        rate_idx = 6;
1159                        break;
1160                case DESC_RATEMCS7:
1161                        rate_idx = 7;
1162                        break;
1163                case DESC_RATEMCS8:
1164                        rate_idx = 8;
1165                        break;
1166                case DESC_RATEMCS9:
1167                        rate_idx = 9;
1168                        break;
1169                case DESC_RATEMCS10:
1170                        rate_idx = 10;
1171                        break;
1172                case DESC_RATEMCS11:
1173                        rate_idx = 11;
1174                        break;
1175                case DESC_RATEMCS12:
1176                        rate_idx = 12;
1177                        break;
1178                case DESC_RATEMCS13:
1179                        rate_idx = 13;
1180                        break;
1181                case DESC_RATEMCS14:
1182                        rate_idx = 14;
1183                        break;
1184                case DESC_RATEMCS15:
1185                        rate_idx = 15;
1186                        break;
1187                default:
1188                        rate_idx = 0;
1189                        break;
1190                }
1191        }
1192        return rate_idx;
1193}
1194EXPORT_SYMBOL(rtlwifi_rate_mapping);
1195
1196static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1197                              struct ieee80211_tx_info *info)
1198{
1199        struct rtl_priv *rtlpriv = rtl_priv(hw);
1200        struct ieee80211_tx_rate *r = &info->status.rates[0];
1201        struct ieee80211_rate *txrate;
1202        u8 hw_value = 0x0;
1203
1204        if (r->flags & IEEE80211_TX_RC_MCS) {
1205                /* HT MCS0-15 */
1206                hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1207                           r->idx;
1208        } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1209                /* VHT MCS0-9, NSS */
1210                if (ieee80211_rate_get_vht_nss(r) == 2)
1211                        hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1212                else
1213                        hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1214
1215                hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1216        } else {
1217                /* legacy */
1218                txrate = ieee80211_get_tx_rate(hw, info);
1219
1220                if (txrate)
1221                        hw_value = txrate->hw_value;
1222        }
1223
1224        /* check 5G band */
1225        if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1226            hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1227                hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1228
1229        return hw_value;
1230}
1231
1232void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1233                      struct ieee80211_tx_info *info,
1234                      struct ieee80211_sta *sta,
1235                      struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1236{
1237#define SET_RATE_ID(rate_id)                                    \
1238        ({typeof(rate_id) _id = rate_id;                        \
1239          ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?     \
1240                rtl_mrate_idx_to_arfr_id(hw, _id,               \
1241                        (sta_entry ? sta_entry->wireless_mode : \
1242                         WIRELESS_MODE_G)) :                    \
1243                _id); })
1244
1245        struct rtl_priv *rtlpriv = rtl_priv(hw);
1246        struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1247        struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1248        struct rtl_sta_info *sta_entry =
1249                (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);
1250
1251        __le16 fc = rtl_get_fc(skb);
1252
1253        tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1254
1255        if (rtl_is_tx_report_skb(hw, skb))
1256                tcb_desc->use_spe_rpt = 1;
1257
1258        if (ieee80211_is_data(fc)) {
1259                /*
1260                 *we set data rate INX 0
1261                 *in rtl_rc.c   if skb is special data or
1262                 *mgt which need low data rate.
1263                 */
1264
1265                /*
1266                 *So tcb_desc->hw_rate is just used for
1267                 *special data and mgt frames
1268                 */
1269                if (info->control.rates[0].idx == 0 ||
1270                                ieee80211_is_nullfunc(fc)) {
1271                        tcb_desc->use_driver_rate = true;
1272                        tcb_desc->ratr_index =
1273                                        SET_RATE_ID(RATR_INX_WIRELESS_MC);
1274
1275                        tcb_desc->disable_ratefallback = 1;
1276                } else {
1277                        /*
1278                         *because hw will nerver use hw_rate
1279                         *when tcb_desc->use_driver_rate = false
1280                         *so we never set highest N rate here,
1281                         *and N rate will all be controlled by FW
1282                         *when tcb_desc->use_driver_rate = false
1283                         */
1284                        if (sta && sta->vht_cap.vht_supported) {
1285                                tcb_desc->hw_rate =
1286                                _rtl_get_vht_highest_n_rate(hw, sta);
1287                        } else {
1288                                if (sta && sta->ht_cap.ht_supported) {
1289                                        tcb_desc->hw_rate =
1290                                                _rtl_get_highest_n_rate(hw, sta);
1291                                } else {
1292                                        if (rtlmac->mode == WIRELESS_MODE_B) {
1293                                                tcb_desc->hw_rate =
1294                                                    rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1295                                        } else {
1296                                                tcb_desc->hw_rate =
1297                                                    rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1298                                        }
1299                                }
1300                        }
1301                }
1302
1303                if (is_multicast_ether_addr(hdr->addr1))
1304                        tcb_desc->multicast = 1;
1305                else if (is_broadcast_ether_addr(hdr->addr1))
1306                        tcb_desc->broadcast = 1;
1307
1308                _rtl_txrate_selectmode(hw, sta, tcb_desc);
1309                _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1310                _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1311                _rtl_query_shortgi(hw, sta, tcb_desc, info);
1312                _rtl_query_protection_mode(hw, tcb_desc, info);
1313        } else {
1314                tcb_desc->use_driver_rate = true;
1315                tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
1316                tcb_desc->disable_ratefallback = 1;
1317                tcb_desc->mac_id = 0;
1318                tcb_desc->packet_bw = false;
1319        }
1320#undef SET_RATE_ID
1321}
1322EXPORT_SYMBOL(rtl_get_tcb_desc);
1323
1324bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1325{
1326        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1327        struct rtl_priv *rtlpriv = rtl_priv(hw);
1328        __le16 fc = rtl_get_fc(skb);
1329
1330        if (rtlpriv->dm.supp_phymode_switch &&
1331            mac->link_state < MAC80211_LINKED &&
1332            (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1333                if (rtlpriv->cfg->ops->chk_switch_dmdp)
1334                        rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1335        }
1336        if (ieee80211_is_auth(fc)) {
1337                RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1338
1339                mac->link_state = MAC80211_LINKING;
1340                /* Dul mac */
1341                rtlpriv->phy.need_iqk = true;
1342
1343        }
1344
1345        return true;
1346}
1347EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1348
1349struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1350                                u8 *bssid, u16 tid);
1351
1352static void process_agg_start(struct ieee80211_hw *hw,
1353                              struct ieee80211_hdr *hdr, u16 tid)
1354{
1355        struct rtl_priv *rtlpriv = rtl_priv(hw);
1356        struct ieee80211_rx_status rx_status = { 0 };
1357        struct sk_buff *skb_delba = NULL;
1358
1359        skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1360        if (skb_delba) {
1361                rx_status.freq = hw->conf.chandef.chan->center_freq;
1362                rx_status.band = hw->conf.chandef.chan->band;
1363                rx_status.flag |= RX_FLAG_DECRYPTED;
1364                rx_status.flag |= RX_FLAG_MACTIME_START;
1365                rx_status.rate_idx = 0;
1366                rx_status.signal = 50 + 10;
1367                memcpy(IEEE80211_SKB_RXCB(skb_delba),
1368                       &rx_status, sizeof(rx_status));
1369                RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1370                              "fake del\n",
1371                              skb_delba->data,
1372                              skb_delba->len);
1373                ieee80211_rx_irqsafe(hw, skb_delba);
1374        }
1375}
1376
1377bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1378{
1379        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1380        struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1381        struct rtl_priv *rtlpriv = rtl_priv(hw);
1382        __le16 fc = rtl_get_fc(skb);
1383        u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1384        u8 category;
1385
1386        if (!ieee80211_is_action(fc))
1387                return true;
1388
1389        category = *act;
1390        act++;
1391        switch (category) {
1392        case ACT_CAT_BA:
1393                switch (*act) {
1394                case ACT_ADDBAREQ:
1395                        if (mac->act_scanning)
1396                                return false;
1397
1398                        RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1399                                "%s ACT_ADDBAREQ From :%pM\n",
1400                                is_tx ? "Tx" : "Rx", hdr->addr2);
1401                        RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1402                                skb->data, skb->len);
1403                        if (!is_tx) {
1404                                struct ieee80211_sta *sta = NULL;
1405                                struct rtl_sta_info *sta_entry = NULL;
1406                                struct rtl_tid_data *tid_data;
1407                                struct ieee80211_mgmt *mgmt = (void *)skb->data;
1408                                u16 capab = 0, tid = 0;
1409
1410                                rcu_read_lock();
1411                                sta = rtl_find_sta(hw, hdr->addr3);
1412                                if (sta == NULL) {
1413                                        RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1414                                                 DBG_DMESG, "sta is NULL\n");
1415                                        rcu_read_unlock();
1416                                        return true;
1417                                }
1418
1419                                sta_entry =
1420                                        (struct rtl_sta_info *)sta->drv_priv;
1421                                if (!sta_entry) {
1422                                        rcu_read_unlock();
1423                                        return true;
1424                                }
1425                                capab =
1426                                  le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1427                                tid = (capab &
1428                                       IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1429                                if (tid >= MAX_TID_COUNT) {
1430                                        rcu_read_unlock();
1431                                        return true;
1432                                }
1433                                tid_data = &sta_entry->tids[tid];
1434                                if (tid_data->agg.rx_agg_state ==
1435                                    RTL_RX_AGG_START)
1436                                        process_agg_start(hw, hdr, tid);
1437                                rcu_read_unlock();
1438                        }
1439                        break;
1440                case ACT_ADDBARSP:
1441                        RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1442                                 "%s ACT_ADDBARSP From :%pM\n",
1443                                  is_tx ? "Tx" : "Rx", hdr->addr2);
1444                        break;
1445                case ACT_DELBA:
1446                        RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1447                                 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1448                        break;
1449                }
1450                break;
1451        default:
1452                break;
1453        }
1454
1455        return true;
1456}
1457EXPORT_SYMBOL_GPL(rtl_action_proc);
1458
1459static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1460                             int type)
1461{
1462        struct ieee80211_hw *hw = rtlpriv->hw;
1463
1464        rtlpriv->ra.is_special_data = true;
1465        if (rtlpriv->cfg->ops->get_btc_status())
1466                rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1467                                        rtlpriv, type);
1468        rtl_lps_leave(hw);
1469        ppsc->last_delaylps_stamp_jiffies = jiffies;
1470}
1471
1472static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1473                                        struct sk_buff *skb, bool is_enc)
1474{
1475        struct rtl_priv *rtlpriv = rtl_priv(hw);
1476        u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1477        u8 encrypt_header_len = 0;
1478        u8 offset;
1479
1480        switch (rtlpriv->sec.pairwise_enc_algorithm) {
1481        case WEP40_ENCRYPTION:
1482        case WEP104_ENCRYPTION:
1483                encrypt_header_len = 4;/*WEP_IV_LEN*/
1484                break;
1485        case TKIP_ENCRYPTION:
1486                encrypt_header_len = 8;/*TKIP_IV_LEN*/
1487                break;
1488        case AESCCMP_ENCRYPTION:
1489                encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1490                break;
1491        default:
1492                break;
1493        }
1494
1495        offset = mac_hdr_len + SNAP_SIZE;
1496        if (is_enc)
1497                offset += encrypt_header_len;
1498
1499        return skb->data + offset;
1500}
1501
1502/*should call before software enc*/
1503u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1504                       bool is_enc)
1505{
1506        struct rtl_priv *rtlpriv = rtl_priv(hw);
1507        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1508        __le16 fc = rtl_get_fc(skb);
1509        u16 ether_type;
1510        const u8 *ether_type_ptr;
1511        const struct iphdr *ip;
1512
1513        if (!ieee80211_is_data(fc))
1514                goto end;
1515
1516        ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1517        ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1518
1519        if (ETH_P_IP == ether_type) {
1520                ip = (struct iphdr *)((u8 *)ether_type_ptr +
1521                     PROTOC_TYPE_SIZE);
1522                if (IPPROTO_UDP == ip->protocol) {
1523                        struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1524                                                               (ip->ihl << 2));
1525                        if (((((u8 *)udp)[1] == 68) &&
1526                             (((u8 *)udp)[3] == 67)) ||
1527                            ((((u8 *)udp)[1] == 67) &&
1528                             (((u8 *)udp)[3] == 68))) {
1529                                /* 68 : UDP BOOTP client
1530                                 * 67 : UDP BOOTP server
1531                                 */
1532                                RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1533                                         DBG_DMESG, "dhcp %s !!\n",
1534                                         (is_tx) ? "Tx" : "Rx");
1535
1536                                if (is_tx)
1537                                        setup_special_tx(rtlpriv, ppsc,
1538                                                         PACKET_DHCP);
1539
1540                                return true;
1541                        }
1542                }
1543        } else if (ETH_P_ARP == ether_type) {
1544                if (is_tx)
1545                        setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1546
1547                return true;
1548        } else if (ETH_P_PAE == ether_type) {
1549                /* EAPOL is seens as in-4way */
1550                rtlpriv->btcoexist.btc_info.in_4way = true;
1551                rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1552
1553                RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1554                         "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1555
1556                if (is_tx) {
1557                        rtlpriv->ra.is_special_data = true;
1558                        rtl_lps_leave(hw);
1559                        ppsc->last_delaylps_stamp_jiffies = jiffies;
1560
1561                        setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1562                }
1563
1564                return true;
1565        } else if (ETH_P_IPV6 == ether_type) {
1566                /* TODO: Handle any IPv6 cases that need special handling.
1567                 * For now, always return false
1568                 */
1569                goto end;
1570        }
1571
1572end:
1573        rtlpriv->ra.is_special_data = false;
1574        return false;
1575}
1576EXPORT_SYMBOL_GPL(rtl_is_special_data);
1577
1578bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1579{
1580        u16 ether_type;
1581        const u8 *ether_type_ptr;
1582
1583        ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1584        ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1585
1586        /* EAPOL */
1587        if (ether_type == ETH_P_PAE)
1588                return true;
1589
1590        return false;
1591}
1592
1593static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw)
1594{
1595        struct rtl_priv *rtlpriv = rtl_priv(hw);
1596        struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1597        u16 sn;
1598
1599        /* SW_DEFINE[11:8] are reserved (driver fills zeros)
1600         * SW_DEFINE[7:2] are used by driver
1601         * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros)
1602         */
1603        sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2;
1604
1605        tx_report->last_sent_sn = sn;
1606        tx_report->last_sent_time = jiffies;
1607
1608        RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1609                 "Send TX-Report sn=0x%X\n", sn);
1610
1611        return sn;
1612}
1613
1614void rtl_get_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1615                       struct ieee80211_hw *hw)
1616{
1617        if (ptcb_desc->use_spe_rpt) {
1618                u16 sn = rtl_get_tx_report_sn(hw);
1619
1620                SET_TX_DESC_SPE_RPT(pdesc, 1);
1621                SET_TX_DESC_SW_DEFINE(pdesc, sn);
1622        }
1623}
1624EXPORT_SYMBOL_GPL(rtl_get_tx_report);
1625
1626void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1627{
1628        struct rtl_priv *rtlpriv = rtl_priv(hw);
1629        struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1630        u16 sn;
1631        u8 st, retry;
1632
1633        if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) {
1634                sn = GET_TX_REPORT_SN_V2(tmp_buf);
1635                st = GET_TX_REPORT_ST_V2(tmp_buf);
1636                retry = GET_TX_REPORT_RETRY_V2(tmp_buf);
1637        } else {
1638                sn = GET_TX_REPORT_SN_V1(tmp_buf);
1639                st = GET_TX_REPORT_ST_V1(tmp_buf);
1640                retry = GET_TX_REPORT_RETRY_V1(tmp_buf);
1641        }
1642
1643        tx_report->last_recv_sn = sn;
1644
1645        RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1646                 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1647                 st, sn, retry);
1648}
1649EXPORT_SYMBOL_GPL(rtl_tx_report_handler);
1650
1651bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1652{
1653        struct rtl_priv *rtlpriv = rtl_priv(hw);
1654        struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1655
1656        if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1657                return true;
1658
1659        if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1660                RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1661                         "Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n",
1662                         tx_report->last_sent_sn, tx_report->last_recv_sn);
1663                return true;    /* 3 sec. (timeout) seen as acked */
1664        }
1665
1666        return false;
1667}
1668
1669void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1670{
1671        struct rtl_priv *rtlpriv = rtl_priv(hw);
1672        int i;
1673
1674        for (i = 0; i < wait_ms; i++) {
1675                if (rtl_check_tx_report_acked(hw))
1676                        break;
1677                usleep_range(1000, 2000);
1678                RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1679                         "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1680        }
1681}
1682
1683u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1684                           struct ieee80211_vif *vif,
1685                           enum wireless_mode wirelessmode,
1686                           struct ieee80211_tx_queue_params *param)
1687{
1688        u32 reg = 0;
1689        u8 sifstime = 10;
1690        u8 slottime = 20;
1691
1692        /* AIFS = AIFSN * slot time + SIFS */
1693        switch (wirelessmode) {
1694        case WIRELESS_MODE_A:
1695        case WIRELESS_MODE_N_24G:
1696        case WIRELESS_MODE_N_5G:
1697        case WIRELESS_MODE_AC_5G:
1698        case WIRELESS_MODE_AC_24G:
1699                sifstime = 16;
1700                slottime = 9;
1701                break;
1702        case WIRELESS_MODE_G:
1703                slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1704                break;
1705        default:
1706                break;
1707        }
1708
1709        reg |= (param->txop & 0x7FF) << 16;
1710        reg |= (fls(param->cw_max) & 0xF) << 12;
1711        reg |= (fls(param->cw_min) & 0xF) << 8;
1712        reg |= (param->aifs & 0x0F) * slottime + sifstime;
1713
1714        return reg;
1715}
1716EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);
1717
1718/*********************************************************
1719 *
1720 * functions called by core.c
1721 *
1722 *********************************************************/
1723int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1724                     struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1725{
1726        struct rtl_priv *rtlpriv = rtl_priv(hw);
1727        struct rtl_tid_data *tid_data;
1728        struct rtl_sta_info *sta_entry = NULL;
1729
1730        if (sta == NULL)
1731                return -EINVAL;
1732
1733        if (unlikely(tid >= MAX_TID_COUNT))
1734                return -EINVAL;
1735
1736        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1737        if (!sta_entry)
1738                return -ENXIO;
1739        tid_data = &sta_entry->tids[tid];
1740
1741        RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1742                 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1743                 *ssn);
1744
1745        tid_data->agg.agg_state = RTL_AGG_START;
1746
1747        ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1748        return 0;
1749}
1750
1751int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1752                    struct ieee80211_sta *sta, u16 tid)
1753{
1754        struct rtl_priv *rtlpriv = rtl_priv(hw);
1755        struct rtl_sta_info *sta_entry = NULL;
1756
1757        if (sta == NULL)
1758                return -EINVAL;
1759
1760        RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1761                 "on ra = %pM tid = %d\n", sta->addr, tid);
1762
1763        if (unlikely(tid >= MAX_TID_COUNT))
1764                return -EINVAL;
1765
1766        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1767        sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1768
1769        ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1770        return 0;
1771}
1772
1773int rtl_rx_agg_start(struct ieee80211_hw *hw,
1774                     struct ieee80211_sta *sta, u16 tid)
1775{
1776        struct rtl_priv *rtlpriv = rtl_priv(hw);
1777        struct rtl_tid_data *tid_data;
1778        struct rtl_sta_info *sta_entry = NULL;
1779        u8 reject_agg;
1780
1781        if (sta == NULL)
1782                return -EINVAL;
1783
1784        if (unlikely(tid >= MAX_TID_COUNT))
1785                return -EINVAL;
1786
1787        if (rtlpriv->cfg->ops->get_btc_status()) {
1788                rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
1789                                                              &reject_agg,
1790                                                              NULL, NULL);
1791                if (reject_agg)
1792                        return -EINVAL;
1793        }
1794
1795        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1796        if (!sta_entry)
1797                return -ENXIO;
1798        tid_data = &sta_entry->tids[tid];
1799
1800        RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1801                 "on ra = %pM tid = %d\n", sta->addr, tid);
1802
1803        tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1804        return 0;
1805}
1806
1807int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1808                    struct ieee80211_sta *sta, u16 tid)
1809{
1810        struct rtl_priv *rtlpriv = rtl_priv(hw);
1811        struct rtl_sta_info *sta_entry = NULL;
1812
1813        if (sta == NULL)
1814                return -EINVAL;
1815
1816        RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1817                 "on ra = %pM tid = %d\n", sta->addr, tid);
1818
1819        if (unlikely(tid >= MAX_TID_COUNT))
1820                return -EINVAL;
1821
1822        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1823        sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1824
1825        return 0;
1826}
1827int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1828                struct ieee80211_sta *sta, u16 tid)
1829{
1830        struct rtl_priv *rtlpriv = rtl_priv(hw);
1831        struct rtl_sta_info *sta_entry = NULL;
1832
1833        if (sta == NULL)
1834                return -EINVAL;
1835
1836        RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1837                 "on ra = %pM tid = %d\n", sta->addr, tid);
1838
1839        if (unlikely(tid >= MAX_TID_COUNT))
1840                return -EINVAL;
1841
1842        sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1843        sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1844
1845        return 0;
1846}
1847
1848void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
1849{
1850        struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
1851        u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0;
1852
1853        if (rtlpriv->cfg->ops->get_btc_status())
1854                btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
1855                                           &ctrl_agg_size, &agg_size);
1856
1857        RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
1858                 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
1859                 reject_agg, ctrl_agg_size, agg_size);
1860
1861        rtlpriv->hw->max_rx_aggregation_subframes =
1862                (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF);
1863}
1864EXPORT_SYMBOL(rtl_rx_ampdu_apply);
1865
1866/*********************************************************
1867 *
1868 * wq & timer callback functions
1869 *
1870 *********************************************************/
1871/* this function is used for roaming */
1872void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1873{
1874        struct rtl_priv *rtlpriv = rtl_priv(hw);
1875        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1876
1877        if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1878                return;
1879
1880        if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1881                return;
1882
1883        /* check if this really is a beacon */
1884        if (!ieee80211_is_beacon(hdr->frame_control) &&
1885            !ieee80211_is_probe_resp(hdr->frame_control))
1886                return;
1887
1888        /* min. beacon length + FCS_LEN */
1889        if (skb->len <= 40 + FCS_LEN)
1890                return;
1891
1892        /* and only beacons from the associated BSSID, please */
1893        if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1894                return;
1895
1896        rtlpriv->link_info.bcn_rx_inperiod++;
1897}
1898EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1899
1900static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
1901{
1902        struct rtl_priv *rtlpriv = rtl_priv(hw);
1903        struct rtl_bssid_entry *entry, *next;
1904
1905        list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1906                list_del(&entry->list);
1907                kfree(entry);
1908                rtlpriv->scan_list.num--;
1909        }
1910}
1911
1912void rtl_scan_list_expire(struct ieee80211_hw *hw)
1913{
1914        struct rtl_priv *rtlpriv = rtl_priv(hw);
1915        struct rtl_bssid_entry *entry, *next;
1916        unsigned long flags;
1917
1918        spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1919
1920        list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1921                /* 180 seconds */
1922                if (jiffies_to_msecs(jiffies - entry->age) < 180000)
1923                        continue;
1924
1925                list_del(&entry->list);
1926                rtlpriv->scan_list.num--;
1927
1928                RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1929                         "BSSID=%pM is expire in scan list (total=%d)\n",
1930                         entry->bssid, rtlpriv->scan_list.num);
1931                kfree(entry);
1932        }
1933
1934        spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1935
1936        rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1937}
1938
1939void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
1940{
1941        struct rtl_priv *rtlpriv = rtl_priv(hw);
1942        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1943        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1944        unsigned long flags;
1945
1946        struct rtl_bssid_entry *entry;
1947        bool entry_found = false;
1948
1949        /* check if it is scanning */
1950        if (!mac->act_scanning)
1951                return;
1952
1953        /* check if this really is a beacon */
1954        if (!ieee80211_is_beacon(hdr->frame_control) &&
1955            !ieee80211_is_probe_resp(hdr->frame_control))
1956                return;
1957
1958        spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1959
1960        list_for_each_entry(entry, &rtlpriv->scan_list.list, list) {
1961                if (memcmp(entry->bssid, hdr->addr3, ETH_ALEN) == 0) {
1962                        list_del_init(&entry->list);
1963                        entry_found = true;
1964                        RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1965                                 "Update BSSID=%pM to scan list (total=%d)\n",
1966                                 hdr->addr3, rtlpriv->scan_list.num);
1967                        break;
1968                }
1969        }
1970
1971        if (!entry_found) {
1972                entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
1973
1974                if (!entry)
1975                        goto label_err;
1976
1977                memcpy(entry->bssid, hdr->addr3, ETH_ALEN);
1978                rtlpriv->scan_list.num++;
1979
1980                RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1981                         "Add BSSID=%pM to scan list (total=%d)\n",
1982                         hdr->addr3, rtlpriv->scan_list.num);
1983        }
1984
1985        entry->age = jiffies;
1986
1987        list_add_tail(&entry->list, &rtlpriv->scan_list.list);
1988
1989label_err:
1990        spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1991}
1992EXPORT_SYMBOL(rtl_collect_scan_list);
1993
1994void rtl_watchdog_wq_callback(void *data)
1995{
1996        struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1997                                                            struct rtl_works,
1998                                                            watchdog_wq);
1999        struct ieee80211_hw *hw = rtlworks->hw;
2000        struct rtl_priv *rtlpriv = rtl_priv(hw);
2001        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2002        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2003        bool busytraffic = false;
2004        bool tx_busy_traffic = false;
2005        bool rx_busy_traffic = false;
2006        bool higher_busytraffic = false;
2007        bool higher_busyrxtraffic = false;
2008        u8 idx, tid;
2009        u32 rx_cnt_inp4eriod = 0;
2010        u32 tx_cnt_inp4eriod = 0;
2011        u32 aver_rx_cnt_inperiod = 0;
2012        u32 aver_tx_cnt_inperiod = 0;
2013        u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
2014        u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
2015
2016        if (is_hal_stop(rtlhal))
2017                return;
2018
2019        /* <1> Determine if action frame is allowed */
2020        if (mac->link_state > MAC80211_NOLINK) {
2021                if (mac->cnt_after_linked < 20)
2022                        mac->cnt_after_linked++;
2023        } else {
2024                mac->cnt_after_linked = 0;
2025        }
2026
2027        /* <2> to check if traffic busy, if
2028         * busytraffic we don't change channel
2029         */
2030        if (mac->link_state >= MAC80211_LINKED) {
2031
2032                /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
2033                for (idx = 0; idx <= 2; idx++) {
2034                        rtlpriv->link_info.num_rx_in4period[idx] =
2035                            rtlpriv->link_info.num_rx_in4period[idx + 1];
2036                        rtlpriv->link_info.num_tx_in4period[idx] =
2037                            rtlpriv->link_info.num_tx_in4period[idx + 1];
2038                }
2039                rtlpriv->link_info.num_rx_in4period[3] =
2040                    rtlpriv->link_info.num_rx_inperiod;
2041                rtlpriv->link_info.num_tx_in4period[3] =
2042                    rtlpriv->link_info.num_tx_inperiod;
2043                for (idx = 0; idx <= 3; idx++) {
2044                        rx_cnt_inp4eriod +=
2045                            rtlpriv->link_info.num_rx_in4period[idx];
2046                        tx_cnt_inp4eriod +=
2047                            rtlpriv->link_info.num_tx_in4period[idx];
2048                }
2049                aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
2050                aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
2051
2052                /* (2) check traffic busy */
2053                if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
2054                        busytraffic = true;
2055                        if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
2056                                rx_busy_traffic = true;
2057                        else
2058                                tx_busy_traffic = false;
2059                }
2060
2061                /* Higher Tx/Rx data. */
2062                if (aver_rx_cnt_inperiod > 4000 ||
2063                    aver_tx_cnt_inperiod > 4000) {
2064                        higher_busytraffic = true;
2065
2066                        /* Extremely high Rx data. */
2067                        if (aver_rx_cnt_inperiod > 5000)
2068                                higher_busyrxtraffic = true;
2069                }
2070
2071                /* check every tid's tx traffic */
2072                for (tid = 0; tid <= 7; tid++) {
2073                        for (idx = 0; idx <= 2; idx++)
2074                                rtlpriv->link_info.tidtx_in4period[tid][idx] =
2075                                        rtlpriv->link_info.tidtx_in4period[tid]
2076                                        [idx + 1];
2077                        rtlpriv->link_info.tidtx_in4period[tid][3] =
2078                                rtlpriv->link_info.tidtx_inperiod[tid];
2079
2080                        for (idx = 0; idx <= 3; idx++)
2081                                tidtx_inp4eriod[tid] +=
2082                                   rtlpriv->link_info.tidtx_in4period[tid][idx];
2083                        aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
2084                        if (aver_tidtx_inperiod[tid] > 5000)
2085                                rtlpriv->link_info.higher_busytxtraffic[tid] =
2086                                                                        true;
2087                        else
2088                                rtlpriv->link_info.higher_busytxtraffic[tid] =
2089                                                                        false;
2090                }
2091
2092                /* PS is controlled by coex. */
2093                if (rtlpriv->cfg->ops->get_btc_status() &&
2094                    rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
2095                        goto label_lps_done;
2096
2097                if (rtlpriv->link_info.num_rx_inperiod +
2098                      rtlpriv->link_info.num_tx_inperiod > 8 ||
2099                    rtlpriv->link_info.num_rx_inperiod > 2)
2100                        rtl_lps_leave(hw);
2101                else
2102                        rtl_lps_enter(hw);
2103
2104label_lps_done:
2105                ;
2106        }
2107
2108        rtlpriv->link_info.num_rx_inperiod = 0;
2109        rtlpriv->link_info.num_tx_inperiod = 0;
2110        for (tid = 0; tid <= 7; tid++)
2111                rtlpriv->link_info.tidtx_inperiod[tid] = 0;
2112
2113        rtlpriv->link_info.busytraffic = busytraffic;
2114        rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
2115        rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
2116        rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
2117        rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
2118
2119        rtlpriv->stats.txbytesunicast_inperiod =
2120                rtlpriv->stats.txbytesunicast -
2121                rtlpriv->stats.txbytesunicast_last;
2122        rtlpriv->stats.rxbytesunicast_inperiod =
2123                rtlpriv->stats.rxbytesunicast -
2124                rtlpriv->stats.rxbytesunicast_last;
2125        rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2126        rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2127
2128        rtlpriv->stats.txbytesunicast_inperiod_tp =
2129                (u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2130                1024 / 1024);
2131        rtlpriv->stats.rxbytesunicast_inperiod_tp =
2132                (u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2133                1024 / 1024);
2134
2135        /* <3> DM */
2136        if (!rtlpriv->cfg->mod_params->disable_watchdog)
2137                rtlpriv->cfg->ops->dm_watchdog(hw);
2138
2139        /* <4> roaming */
2140        if (mac->link_state == MAC80211_LINKED &&
2141            mac->opmode == NL80211_IFTYPE_STATION) {
2142                if ((rtlpriv->link_info.bcn_rx_inperiod +
2143                    rtlpriv->link_info.num_rx_inperiod) == 0) {
2144                        rtlpriv->link_info.roam_times++;
2145                        RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2146                                 "AP off for %d s\n",
2147                                (rtlpriv->link_info.roam_times * 2));
2148
2149                        /* if we can't recv beacon for 10s,
2150                         * we should reconnect this AP
2151                         */
2152                        if (rtlpriv->link_info.roam_times >= 5) {
2153                                pr_err("AP off, try to reconnect now\n");
2154                                rtlpriv->link_info.roam_times = 0;
2155                                ieee80211_connection_loss(
2156                                        rtlpriv->mac80211.vif);
2157                        }
2158                } else {
2159                        rtlpriv->link_info.roam_times = 0;
2160                }
2161        }
2162
2163        if (rtlpriv->cfg->ops->get_btc_status())
2164                rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2165
2166        if (rtlpriv->btcoexist.btc_info.in_4way) {
2167                if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2168                               msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2169                        rtlpriv->btcoexist.btc_info.in_4way = false;
2170        }
2171
2172        rtlpriv->link_info.bcn_rx_inperiod = 0;
2173
2174        /* <6> scan list */
2175        rtl_scan_list_expire(hw);
2176}
2177
2178void rtl_watch_dog_timer_callback(struct timer_list *t)
2179{
2180        struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
2181
2182        queue_delayed_work(rtlpriv->works.rtl_wq,
2183                           &rtlpriv->works.watchdog_wq, 0);
2184
2185        mod_timer(&rtlpriv->works.watchdog_timer,
2186                  jiffies + MSECS(RTL_WATCH_DOG_TIME));
2187}
2188void rtl_fwevt_wq_callback(void *data)
2189{
2190        struct rtl_works *rtlworks =
2191                container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
2192        struct ieee80211_hw *hw = rtlworks->hw;
2193        struct rtl_priv *rtlpriv = rtl_priv(hw);
2194
2195        rtlpriv->cfg->ops->c2h_command_handle(hw);
2196}
2197
2198void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val)
2199{
2200        struct rtl_priv *rtlpriv = rtl_priv(hw);
2201        unsigned long flags;
2202        struct rtl_c2hcmd *c2hcmd;
2203
2204        c2hcmd = kmalloc(sizeof(*c2hcmd),
2205                         in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
2206
2207        if (!c2hcmd)
2208                goto label_err;
2209
2210        c2hcmd->val = kmalloc(len,
2211                              in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
2212
2213        if (!c2hcmd->val)
2214                goto label_err2;
2215
2216        /* fill data */
2217        c2hcmd->tag = tag;
2218        c2hcmd->len = len;
2219        memcpy(c2hcmd->val, val, len);
2220
2221        /* enqueue */
2222        spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2223
2224        list_add_tail(&c2hcmd->list, &rtlpriv->c2hcmd_list);
2225
2226        spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2227
2228        /* wake up wq */
2229        queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2230
2231        return;
2232
2233label_err2:
2234        kfree(c2hcmd);
2235
2236label_err:
2237        RT_TRACE(rtlpriv, COMP_CMD, DBG_WARNING,
2238                 "C2H cmd enqueue fail.\n");
2239}
2240EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
2241
2242void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2243{
2244        struct rtl_priv *rtlpriv = rtl_priv(hw);
2245        unsigned long flags;
2246        struct rtl_c2hcmd *c2hcmd;
2247        int i;
2248
2249        for (i = 0; i < 200; i++) {
2250                /* dequeue a task */
2251                spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2252
2253                c2hcmd = list_first_entry_or_null(&rtlpriv->c2hcmd_list,
2254                                                  struct rtl_c2hcmd, list);
2255
2256                if (c2hcmd)
2257                        list_del(&c2hcmd->list);
2258
2259                spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2260
2261                /* do it */
2262                if (!c2hcmd)
2263                        break;
2264
2265                if (rtlpriv->cfg->ops->c2h_content_parsing && exec)
2266                        rtlpriv->cfg->ops->c2h_content_parsing(hw,
2267                                        c2hcmd->tag, c2hcmd->len, c2hcmd->val);
2268
2269                /* free */
2270                kfree(c2hcmd->val);
2271
2272                kfree(c2hcmd);
2273        }
2274}
2275
2276void rtl_c2hcmd_wq_callback(void *data)
2277{
2278        struct rtl_works *rtlworks = container_of_dwork_rtl(data,
2279                                                            struct rtl_works,
2280                                                            c2hcmd_wq);
2281        struct ieee80211_hw *hw = rtlworks->hw;
2282
2283        rtl_c2hcmd_launcher(hw, 1);
2284}
2285
2286void rtl_easy_concurrent_retrytimer_callback(struct timer_list *t)
2287{
2288        struct rtl_priv *rtlpriv =
2289                from_timer(rtlpriv, t, works.dualmac_easyconcurrent_retrytimer);
2290        struct ieee80211_hw *hw = rtlpriv->hw;
2291        struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
2292
2293        if (buddy_priv == NULL)
2294                return;
2295
2296        rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
2297}
2298/*********************************************************
2299 *
2300 * frame process functions
2301 *
2302 *********************************************************/
2303u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2304{
2305        struct ieee80211_mgmt *mgmt = (void *)data;
2306        u8 *pos, *end;
2307
2308        pos = (u8 *)mgmt->u.beacon.variable;
2309        end = data + len;
2310        while (pos < end) {
2311                if (pos + 2 + pos[1] > end)
2312                        return NULL;
2313
2314                if (pos[0] == ie)
2315                        return pos;
2316
2317                pos += 2 + pos[1];
2318        }
2319        return NULL;
2320}
2321
2322/* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2323/* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
2324static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2325                                     enum ieee80211_smps_mode smps,
2326                                     u8 *da, u8 *bssid)
2327{
2328        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2329        struct sk_buff *skb;
2330        struct ieee80211_mgmt *action_frame;
2331
2332        /* 27 = header + category + action + smps mode */
2333        skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2334        if (!skb)
2335                return NULL;
2336
2337        skb_reserve(skb, hw->extra_tx_headroom);
2338        action_frame = skb_put_zero(skb, 27);
2339        memcpy(action_frame->da, da, ETH_ALEN);
2340        memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2341        memcpy(action_frame->bssid, bssid, ETH_ALEN);
2342        action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2343                                                  IEEE80211_STYPE_ACTION);
2344        action_frame->u.action.category = WLAN_CATEGORY_HT;
2345        action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2346        switch (smps) {
2347        case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2348        case IEEE80211_SMPS_NUM_MODES:/* 4 */
2349                WARN_ON(1);
2350        /* fall through */
2351        case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2352                action_frame->u.action.u.ht_smps.smps_control =
2353                                WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2354                break;
2355        case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2356                action_frame->u.action.u.ht_smps.smps_control =
2357                                WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2358                break;
2359        case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2360                action_frame->u.action.u.ht_smps.smps_control =
2361                                WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2362                break;
2363        }
2364
2365        return skb;
2366}
2367
2368int rtl_send_smps_action(struct ieee80211_hw *hw,
2369                         struct ieee80211_sta *sta,
2370                         enum ieee80211_smps_mode smps)
2371{
2372        struct rtl_priv *rtlpriv = rtl_priv(hw);
2373        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2374        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2375        struct sk_buff *skb = NULL;
2376        struct rtl_tcb_desc tcb_desc;
2377        u8 bssid[ETH_ALEN] = {0};
2378
2379        memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2380
2381        if (rtlpriv->mac80211.act_scanning)
2382                goto err_free;
2383
2384        if (!sta)
2385                goto err_free;
2386
2387        if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2388                goto err_free;
2389
2390        if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2391                goto err_free;
2392
2393        if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2394                memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2395        else
2396                memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2397
2398        skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2399        /* this is a type = mgmt * stype = action frame */
2400        if (skb) {
2401                struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2402                struct rtl_sta_info *sta_entry =
2403                        (struct rtl_sta_info *) sta->drv_priv;
2404                sta_entry->mimo_ps = smps;
2405                /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2406
2407                info->control.rates[0].idx = 0;
2408                info->band = hw->conf.chandef.chan->band;
2409                rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2410        }
2411        return 1;
2412
2413err_free:
2414        return 0;
2415}
2416EXPORT_SYMBOL(rtl_send_smps_action);
2417
2418void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2419{
2420        struct rtl_priv *rtlpriv = rtl_priv(hw);
2421        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2422        enum io_type iotype;
2423
2424        if (!is_hal_stop(rtlhal)) {
2425                switch (operation) {
2426                case SCAN_OPT_BACKUP:
2427                        iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2428                        rtlpriv->cfg->ops->set_hw_reg(hw,
2429                                                      HW_VAR_IO_CMD,
2430                                                      (u8 *)&iotype);
2431                        break;
2432                case SCAN_OPT_RESTORE:
2433                        iotype = IO_CMD_RESUME_DM_BY_SCAN;
2434                        rtlpriv->cfg->ops->set_hw_reg(hw,
2435                                                      HW_VAR_IO_CMD,
2436                                                      (u8 *)&iotype);
2437                        break;
2438                default:
2439                        pr_err("Unknown Scan Backup operation.\n");
2440                        break;
2441                }
2442        }
2443}
2444EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
2445
2446/* because mac80211 have issues when can receive del ba
2447 * so here we just make a fake del_ba if we receive a ba_req
2448 * but rx_agg was opened to let mac80211 release some ba
2449 * related resources, so please this del_ba for tx
2450 */
2451struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2452                                u8 *sa, u8 *bssid, u16 tid)
2453{
2454        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2455        struct sk_buff *skb;
2456        struct ieee80211_mgmt *action_frame;
2457        u16 params;
2458
2459        /* 27 = header + category + action + smps mode */
2460        skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2461        if (!skb)
2462                return NULL;
2463
2464        skb_reserve(skb, hw->extra_tx_headroom);
2465        action_frame = skb_put_zero(skb, 34);
2466        memcpy(action_frame->sa, sa, ETH_ALEN);
2467        memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2468        memcpy(action_frame->bssid, bssid, ETH_ALEN);
2469        action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2470                                                  IEEE80211_STYPE_ACTION);
2471        action_frame->u.action.category = WLAN_CATEGORY_BACK;
2472        action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2473        params = (u16)(1 << 11);        /* bit 11 initiator */
2474        params |= (u16)(tid << 12);     /* bit 15:12 TID number */
2475
2476        action_frame->u.action.u.delba.params = cpu_to_le16(params);
2477        action_frame->u.action.u.delba.reason_code =
2478                cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2479
2480        return skb;
2481}
2482
2483/*********************************************************
2484 *
2485 * IOT functions
2486 *
2487 *********************************************************/
2488static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2489                                  struct octet_string vendor_ie)
2490{
2491        struct rtl_priv *rtlpriv = rtl_priv(hw);
2492        bool matched = false;
2493        static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2494        static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2495        static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2496        static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2497        static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2498        static u8 racap[] = { 0x00, 0x0c, 0x43 };
2499        static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2500        static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2501
2502        if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2503                memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2504                rtlpriv->mac80211.vendor = PEER_ATH;
2505                matched = true;
2506        } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2507                memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2508                memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2509                rtlpriv->mac80211.vendor = PEER_BROAD;
2510                matched = true;
2511        } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2512                rtlpriv->mac80211.vendor = PEER_RAL;
2513                matched = true;
2514        } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2515                rtlpriv->mac80211.vendor = PEER_CISCO;
2516                matched = true;
2517        } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2518                rtlpriv->mac80211.vendor = PEER_MARV;
2519                matched = true;
2520        }
2521
2522        return matched;
2523}
2524
2525static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2526                unsigned int len)
2527{
2528        struct ieee80211_mgmt *mgmt = (void *)data;
2529        struct octet_string vendor_ie;
2530        u8 *pos, *end;
2531
2532        pos = (u8 *)mgmt->u.beacon.variable;
2533        end = data + len;
2534        while (pos < end) {
2535                if (pos[0] == 221) {
2536                        vendor_ie.length = pos[1];
2537                        vendor_ie.octet = &pos[2];
2538                        if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2539                                return true;
2540                }
2541
2542                if (pos + 2 + pos[1] > end)
2543                        return false;
2544
2545                pos += 2 + pos[1];
2546        }
2547        return false;
2548}
2549
2550void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2551{
2552        struct rtl_priv *rtlpriv = rtl_priv(hw);
2553        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2554        struct ieee80211_hdr *hdr = (void *)data;
2555        u32 vendor = PEER_UNKNOWN;
2556
2557        static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2558        static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2559        static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2560        static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2561        static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2562        static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2563        static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2564        static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2565        static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2566        static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2567        static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2568        static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2569        static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2570        static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2571        static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2572        static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2573
2574        if (mac->opmode != NL80211_IFTYPE_STATION)
2575                return;
2576
2577        if (mac->link_state == MAC80211_NOLINK) {
2578                mac->vendor = PEER_UNKNOWN;
2579                return;
2580        }
2581
2582        if (mac->cnt_after_linked > 2)
2583                return;
2584
2585        /* check if this really is a beacon */
2586        if (!ieee80211_is_beacon(hdr->frame_control))
2587                return;
2588
2589        /* min. beacon length + FCS_LEN */
2590        if (len <= 40 + FCS_LEN)
2591                return;
2592
2593        /* and only beacons from the associated BSSID, please */
2594        if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2595                return;
2596
2597        if (rtl_find_221_ie(hw, data, len))
2598                vendor = mac->vendor;
2599
2600        if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2601                (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2602                (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2603                (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2604                (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2605                (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2606                vendor == PEER_ATH) {
2607                vendor = PEER_ATH;
2608                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2609        } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2610                (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2611                (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2612                (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2613                (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2614                vendor == PEER_RAL) {
2615                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2616                vendor = PEER_RAL;
2617        } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2618                vendor == PEER_CISCO) {
2619                vendor = PEER_CISCO;
2620                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2621        } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2622                (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2623                (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2624                vendor == PEER_BROAD) {
2625                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2626                vendor = PEER_BROAD;
2627        } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2628                vendor == PEER_MARV) {
2629                vendor = PEER_MARV;
2630                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2631        }
2632
2633        mac->vendor = vendor;
2634}
2635EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2636
2637MODULE_AUTHOR("lizhaoming       <chaoming_li@realsil.com.cn>");
2638MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
2639MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
2640MODULE_LICENSE("GPL");
2641MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2642
2643struct rtl_global_var rtl_global_var = {};
2644EXPORT_SYMBOL_GPL(rtl_global_var);
2645
2646static int __init rtl_core_module_init(void)
2647{
2648        BUILD_BUG_ON(TX_PWR_BY_RATE_NUM_RATE < TX_PWR_BY_RATE_NUM_SECTION);
2649        BUILD_BUG_ON(MAX_RATE_SECTION_NUM != MAX_RATE_SECTION);
2650        BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_24G != MAX_RATE_SECTION);
2651        BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_5G != (MAX_RATE_SECTION - 1));
2652
2653        if (rtl_rate_control_register())
2654                pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2655
2656        /* add debugfs */
2657        rtl_debugfs_add_topdir();
2658
2659        /* init some global vars */
2660        INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2661        spin_lock_init(&rtl_global_var.glb_list_lock);
2662
2663        return 0;
2664}
2665
2666static void __exit rtl_core_module_exit(void)
2667{
2668        /*RC*/
2669        rtl_rate_control_unregister();
2670
2671        /* remove debugfs */
2672        rtl_debugfs_remove_topdir();
2673}
2674
2675module_init(rtl_core_module_init);
2676module_exit(rtl_core_module_exit);
2677