drivers/staging/rtl8821ae/base.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2010  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  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * wlanfae <wlanfae@realtek.com>
  23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  24  * Hsinchu 300, Taiwan.
  25  *
  26  * Larry Finger <Larry.Finger@lwfinger.net>
  27  *
  28  *****************************************************************************/
  29
  30 #include <linux/ip.h>
  31 #include <linux/module.h>
  32 #include "wifi.h"
  33 #include "rc.h"
  34 #include "base.h"
  35 #include "efuse.h"
  36 #include "cam.h"
  37 #include "ps.h"
  38 #include "regd.h"
  39 #include "pci.h"
  40
  41 /*
  42  *NOTICE!!!: This file will be very big, we should
  43  *keep it clear under following roles:
  44  *
  45  *This file include following part, so, if you add new
  46  *functions into this file, please check which part it
  47  *should includes. or check if you should add new part
  48  *for this file:
  49  *
  50  *1) mac80211 init functions
  51  *2) tx information functions
  52  *3) functions called by core.c
  53  *4) wq & timer callback functions
  54  *5) frame process functions
  55  *6) IOT functions
  56  *7) sysfs functions
  57  *8) vif functions
  58  *9) ...
  59  */
  60
  61 /*********************************************************
  62  *
  63  * mac80211 init functions
  64  *
  65  *********************************************************/
  66 static struct ieee80211_channel rtl_channeltable_2g[] = {
  67         {.center_freq = 2412, .hw_value = 1,},
  68         {.center_freq = 2417, .hw_value = 2,},
  69         {.center_freq = 2422, .hw_value = 3,},
  70         {.center_freq = 2427, .hw_value = 4,},
  71         {.center_freq = 2432, .hw_value = 5,},
  72         {.center_freq = 2437, .hw_value = 6,},
  73         {.center_freq = 2442, .hw_value = 7,},
  74         {.center_freq = 2447, .hw_value = 8,},
  75         {.center_freq = 2452, .hw_value = 9,},
  76         {.center_freq = 2457, .hw_value = 10,},
  77         {.center_freq = 2462, .hw_value = 11,},
  78         {.center_freq = 2467, .hw_value = 12,},
  79         {.center_freq = 2472, .hw_value = 13,},
  80         {.center_freq = 2484, .hw_value = 14,},
  81 };
  82
  83 static struct ieee80211_channel rtl_channeltable_5g[] = {
  84         {.center_freq = 5180, .hw_value = 36,},
  85         {.center_freq = 5200, .hw_value = 40,},
  86         {.center_freq = 5220, .hw_value = 44,},
  87         {.center_freq = 5240, .hw_value = 48,},
  88         {.center_freq = 5260, .hw_value = 52,},
  89         {.center_freq = 5280, .hw_value = 56,},
  90         {.center_freq = 5300, .hw_value = 60,},
  91         {.center_freq = 5320, .hw_value = 64,},
  92         {.center_freq = 5500, .hw_value = 100,},
  93         {.center_freq = 5520, .hw_value = 104,},
  94         {.center_freq = 5540, .hw_value = 108,},
  95         {.center_freq = 5560, .hw_value = 112,},
  96         {.center_freq = 5580, .hw_value = 116,},
  97         {.center_freq = 5600, .hw_value = 120,},
  98         {.center_freq = 5620, .hw_value = 124,},
  99         {.center_freq = 5640, .hw_value = 128,},
 100         {.center_freq = 5660, .hw_value = 132,},
 101         {.center_freq = 5680, .hw_value = 136,},
 102         {.center_freq = 5700, .hw_value = 140,},
 103         {.center_freq = 5745, .hw_value = 149,},
 104         {.center_freq = 5765, .hw_value = 153,},
 105         {.center_freq = 5785, .hw_value = 157,},
 106         {.center_freq = 5805, .hw_value = 161,},
 107         {.center_freq = 5825, .hw_value = 165,},
 108 };
 109
 110 static struct ieee80211_rate rtl_ratetable_2g[] = {
 111         {.bitrate = 10, .hw_value = 0x00,},
 112         {.bitrate = 20, .hw_value = 0x01,},
 113         {.bitrate = 55, .hw_value = 0x02,},
 114         {.bitrate = 110, .hw_value = 0x03,},
 115         {.bitrate = 60, .hw_value = 0x04,},
 116         {.bitrate = 90, .hw_value = 0x05,},
 117         {.bitrate = 120, .hw_value = 0x06,},
 118         {.bitrate = 180, .hw_value = 0x07,},
 119         {.bitrate = 240, .hw_value = 0x08,},
 120         {.bitrate = 360, .hw_value = 0x09,},
 121         {.bitrate = 480, .hw_value = 0x0a,},
 122         {.bitrate = 540, .hw_value = 0x0b,},
 123 };
 124
 125 static struct ieee80211_rate rtl_ratetable_5g[] = {
 126         {.bitrate = 60, .hw_value = 0x04,},
 127         {.bitrate = 90, .hw_value = 0x05,},
 128         {.bitrate = 120, .hw_value = 0x06,},
 129         {.bitrate = 180, .hw_value = 0x07,},
 130         {.bitrate = 240, .hw_value = 0x08,},
 131         {.bitrate = 360, .hw_value = 0x09,},
 132         {.bitrate = 480, .hw_value = 0x0a,},
 133         {.bitrate = 540, .hw_value = 0x0b,},
 134 };
 135
 136 static const struct ieee80211_supported_band rtl_band_2ghz = {
 137         .band = IEEE80211_BAND_2GHZ,
 138
 139         .channels = rtl_channeltable_2g,
 140         .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
 141
 142         .bitrates = rtl_ratetable_2g,
 143         .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
 144
 145         .ht_cap = {0},
 146 };
 147
 148 static struct ieee80211_supported_band rtl_band_5ghz = {
 149         .band = IEEE80211_BAND_5GHZ,
 150
 151         .channels = rtl_channeltable_5g,
 152         .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
 153
 154         .bitrates = rtl_ratetable_5g,
 155         .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
 156
 157         .ht_cap = {0},
 158 };
 159
 160 static const u8 tid_to_ac[] = {
 161         2, /* IEEE80211_AC_BE */
 162         3, /* IEEE80211_AC_BK */
 163         3, /* IEEE80211_AC_BK */
 164         2, /* IEEE80211_AC_BE */
 165         1, /* IEEE80211_AC_VI */
 166         1, /* IEEE80211_AC_VI */
 167         0, /* IEEE80211_AC_VO */
 168         0, /* IEEE80211_AC_VO */
 169 };
 170
 171 u8 rtl_tid_to_ac(struct ieee80211_hw *hw, u8 tid)
 172 {
 173         return tid_to_ac[tid];
 174 }
 175
 176 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
 177                                   struct ieee80211_sta_ht_cap *ht_cap)
 178 {
 179         struct rtl_priv *rtlpriv = rtl_priv(hw);
 180         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 181
 182         ht_cap->ht_supported = true;
 183         ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 184             IEEE80211_HT_CAP_SGI_40 |
 185             IEEE80211_HT_CAP_SGI_20 |
 186             IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
 187
 188         if (rtlpriv->rtlhal.disable_amsdu_8k)
 189                 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
 190
 191         /*
 192          *Maximum length of AMPDU that the STA can receive.
 193          *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
 194          */
 195         ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 196
 197         /*Minimum MPDU start spacing , */
 198         ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
 199
 200         ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 201
 202         /*
 203          *hw->wiphy->bands[IEEE80211_BAND_2GHZ]
 204          *base on ant_num
 205          *rx_mask: RX mask
 206          *if rx_ant =1 rx_mask[0]=0xff;==>MCS0-MCS7
 207          *if rx_ant =2 rx_mask[1]=0xff;==>MCS8-MCS15
 208          *if rx_ant >=3 rx_mask[2]=0xff;
 209          *if BW_40 rx_mask[4]=0x01;
 210          *highest supported RX rate
 211          */
 212         if (rtlpriv->dm.supp_phymode_switch) {
 213                 RT_TRACE(COMP_INIT, DBG_EMERG, ("Support phy mode switch\n"));
 214
 215                 ht_cap->mcs.rx_mask[0] = 0xFF;
 216                 ht_cap->mcs.rx_mask[1] = 0xFF;
 217                 ht_cap->mcs.rx_mask[4] = 0x01;
 218
 219                 ht_cap->mcs.rx_highest = MAX_BIT_RATE_40MHZ_MCS15;
 220         } else {
 221                 if (get_rf_type(rtlphy) == RF_1T2R ||
 222                                 get_rf_type(rtlphy) == RF_2T2R) {
 223
 224                         RT_TRACE(COMP_INIT, DBG_DMESG, ("1T2R or 2T2R\n"));
 225
 226                         ht_cap->mcs.rx_mask[0] = 0xFF;
 227                         ht_cap->mcs.rx_mask[1] = 0xFF;
 228                         ht_cap->mcs.rx_mask[4] = 0x01;
 229
 230                         ht_cap->mcs.rx_highest = MAX_BIT_RATE_40MHZ_MCS15;
 231                 } else if (get_rf_type(rtlphy) == RF_1T1R) {
 232
 233                         RT_TRACE(COMP_INIT, DBG_DMESG, ("1T1R\n"));
 234
 235                         ht_cap->mcs.rx_mask[0] = 0xFF;
 236                         ht_cap->mcs.rx_mask[1] = 0x00;
 237                         ht_cap->mcs.rx_mask[4] = 0x01;
 238
 239                         ht_cap->mcs.rx_highest = MAX_BIT_RATE_40MHZ_MCS7;
 240                 }
 241         }
 242 }
 243
 244 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
 245 {
 246         struct rtl_priv *rtlpriv = rtl_priv(hw);
 247         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 248         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 249         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 250         struct ieee80211_supported_band *sband;
 251
 252
 253         if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
 254             rtlhal->bandset == BAND_ON_BOTH) {
 255                 /* 1: 2.4 G bands */
 256                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 257                 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
 258
 259                 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
 260                  * to default value(1T1R) */
 261                 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
 262                                 sizeof(struct ieee80211_supported_band));
 263
 264                 /* <3> init ht cap base on ant_num */
 265                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 266
 267                 /* <4> set mac->sband to wiphy->sband */
 268                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
 269
 270                 /* 2: 5 G bands */
 271                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
 272                 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
 273
 274                 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
 275                  * to default value(1T1R) */
 276                 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
 277                                 sizeof(struct ieee80211_supported_band));
 278
 279                 /* <3> init ht cap base on ant_num */
 280                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 281
 282                 /* <4> set mac->sband to wiphy->sband */
 283                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
 284         } else {
 285                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 286                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 287                         sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
 288
 289                         /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
 290                          * to default value(1T1R) */
 291                         memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
 292                                &rtl_band_2ghz,
 293                                sizeof(struct ieee80211_supported_band));
 294
 295                         /* <3> init ht cap base on ant_num */
 296                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 297
 298                         /* <4> set mac->sband to wiphy->sband */
 299                         hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
 300                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 301                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
 302                         sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
 303
 304                         /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
 305                          * to default value(1T1R) */
 306                         memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
 307                                &rtl_band_5ghz,
 308                                sizeof(struct ieee80211_supported_band));
 309
 310                         /* <3> init ht cap base on ant_num */
 311                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
 312
 313                         /* <4> set mac->sband to wiphy->sband */
 314                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
 315                 } else {
 316                         RT_TRACE(COMP_INIT, DBG_EMERG, ("Err BAND %d\n",
 317                                  rtlhal->current_bandtype));
 318                 }
 319         }
 320         /* <5> set hw caps */
 321         hw->flags = IEEE80211_HW_SIGNAL_DBM |
 322             IEEE80211_HW_RX_INCLUDES_FCS |
 323 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0))
 324             IEEE80211_HW_BEACON_FILTER |
 325 #endif
 326             IEEE80211_HW_AMPDU_AGGREGATION |
 327             IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 328             IEEE80211_HW_CONNECTION_MONITOR |
 329             /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
 330             IEEE80211_HW_MFP_CAPABLE | 0;
 331
 332         /* swlps or hwlps has been set in diff chip in init_sw_vars */
 333         if (rtlpriv->psc.b_swctrl_lps)
 334                 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
 335                         IEEE80211_HW_PS_NULLFUNC_STACK |
 336                         /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
 337                         0;
 338 /*<delete in kernel start>*/
 339 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37))
 340         hw->wiphy->interface_modes =
 341             BIT(NL80211_IFTYPE_AP) |
 342             BIT(NL80211_IFTYPE_STATION) |
 343             BIT(NL80211_IFTYPE_ADHOC) |
 344             BIT(NL80211_IFTYPE_MESH_POINT) |
 345             BIT(NL80211_IFTYPE_P2P_CLIENT) |
 346             BIT(NL80211_IFTYPE_P2P_GO);
 347 #else
 348 /*<delete in kernel end>*/
 349         hw->wiphy->interface_modes =
 350             BIT(NL80211_IFTYPE_AP) |
 351             BIT(NL80211_IFTYPE_STATION) |
 352             BIT(NL80211_IFTYPE_ADHOC) |
 353             BIT(NL80211_IFTYPE_MESH_POINT) ;
 354 /*<delete in kernel start>*/
 355 #endif
 356 /*<delete in kernel end>*/
 357 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39))
 358         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 359 #endif
 360
 361 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 3, 0))
 362         hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 363 #endif
 364
 365         hw->wiphy->rts_threshold = 2347;
 366
 367         hw->queues = AC_MAX;
 368         hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
 369
 370         /* TODO: Correct this value for our hw */
 371         /* TODO: define these hard code value */
 372         hw->max_listen_interval = 10;
 373         hw->max_rate_tries = 4;
 374         /* hw->max_rates = 1; */
 375         hw->sta_data_size = sizeof(struct rtl_sta_info);
 376 #ifdef VIF_TODO
 377         hw->vif_data_size = sizeof(struct rtl_vif_info);
 378 #endif
 379
 380         /* <6> mac address */
 381         if (is_valid_ether_addr(rtlefuse->dev_addr)) {
 382                 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
 383         } else {
 384                 u8 rtlmac[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
 385                 get_random_bytes((rtlmac + (ETH_ALEN - 1)), 1);
 386                 SET_IEEE80211_PERM_ADDR(hw, rtlmac);
 387         }
 388
 389 }
 390
 391 static int _rtl_init_deferred_work(struct ieee80211_hw *hw)
 392 {
 393         struct rtl_priv *rtlpriv = rtl_priv(hw);
 394
 395         /* <1> timer */
 396         init_timer(&rtlpriv->works.watchdog_timer);
 397         setup_timer(&rtlpriv->works.watchdog_timer,
 398                     rtl_watch_dog_timer_callback, (unsigned long)hw);
 399         init_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer);
 400         setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
 401                     rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
 402         /* <2> work queue */
 403         rtlpriv->works.hw = hw;
 404 /*<delete in kernel start>*/
 405 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37))
 406 /*<delete in kernel end>*/
 407         rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0);
 408 /*<delete in kernel start>*/
 409 #else
 410         rtlpriv->works.rtl_wq = create_workqueue(rtlpriv->cfg->name);
 411 #endif
 412 /*<delete in kernel end>*/
 413         if (!rtlpriv->works.rtl_wq)
 414                 return -ENOMEM;
 415
 416         INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
 417                           (void *)rtl_watchdog_wq_callback);
 418         INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
 419                           (void *)rtl_ips_nic_off_wq_callback);
 420         INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
 421                           (void *)rtl_swlps_wq_callback);
 422         INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
 423                           (void *)rtl_swlps_rfon_wq_callback);
 424         INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
 425                           (void *)rtl_fwevt_wq_callback);
 426
 427         return 0;
 428
 429 }
 430
 431 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
 432 {
 433         struct rtl_priv *rtlpriv = rtl_priv(hw);
 434
 435         del_timer_sync(&rtlpriv->works.watchdog_timer);
 436
 437         cancel_delayed_work(&rtlpriv->works.watchdog_wq);
 438         cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
 439         cancel_delayed_work(&rtlpriv->works.ps_work);
 440         cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 441         cancel_delayed_work(&rtlpriv->works.fwevt_wq);
 442 }
 443
 444 void rtl_init_rfkill(struct ieee80211_hw *hw)
 445 {
 446         struct rtl_priv *rtlpriv = rtl_priv(hw);
 447
 448         bool radio_state;
 449         bool blocked;
 450         u8 valid = 0;
 451
 452         /*set init state to on */
 453         rtlpriv->rfkill.rfkill_state = 1;
 454         wiphy_rfkill_set_hw_state(hw->wiphy, 0);
 455
 456         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
 457
 458         if (valid) {
 459                 printk(KERN_INFO "rtlwifi: wireless switch is %s\n",
 460                        rtlpriv->rfkill.rfkill_state ? "on" : "off");
 461
 462                 rtlpriv->rfkill.rfkill_state = radio_state;
 463
 464                 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
 465                 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
 466         }
 467
 468         wiphy_rfkill_start_polling(hw->wiphy);
 469 }
 470
 471 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
 472 {
 473         wiphy_rfkill_stop_polling(hw->wiphy);
 474 }
 475
 476 #ifdef VIF_TODO
 477 static void rtl_init_vif(struct ieee80211_hw *hw)
 478 {
 479         struct rtl_priv *rtlpriv = rtl_priv(hw);
 480
 481         INIT_LIST_HEAD(&rtlpriv->vif_priv.vif_list);
 482
 483         rtlpriv->vif_priv.vifs = 0;
 484 }
 485 #endif
 486
 487 int rtl_init_core(struct ieee80211_hw *hw)
 488 {
 489         struct rtl_priv *rtlpriv = rtl_priv(hw);
 490         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 491
 492         /* <1> init mac80211 */
 493         _rtl_init_mac80211(hw);
 494         rtlmac->hw = hw;
 495         rtlmac->link_state = MAC80211_NOLINK;
 496
 497         /* <2> rate control register */
 498         hw->rate_control_algorithm = "rtl_rc";
 499
 500         /*
 501          * <3> init CRDA must come after init
 502          * mac80211 hw  in _rtl_init_mac80211.
 503          */
 504         if (rtl_regd_init(hw, rtl_reg_notifier)) {
 505                 RT_TRACE(COMP_ERR, DBG_EMERG, ("REGD init failed\n"));
 506                 return 1;
 507         }
 508
 509         /* <4> locks */
 510         mutex_init(&rtlpriv->locks.conf_mutex);
 511         spin_lock_init(&rtlpriv->locks.ips_lock);
 512         spin_lock_init(&rtlpriv->locks.irq_th_lock);
 513         spin_lock_init(&rtlpriv->locks.h2c_lock);
 514         spin_lock_init(&rtlpriv->locks.rf_ps_lock);
 515         spin_lock_init(&rtlpriv->locks.rf_lock);
 516         spin_lock_init(&rtlpriv->locks.lps_lock);
 517         spin_lock_init(&rtlpriv->locks.waitq_lock);
 518         spin_lock_init(&rtlpriv->locks.entry_list_lock);
 519         spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
 520         spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
 521         spin_lock_init(&rtlpriv->locks.fw_ps_lock);
 522         spin_lock_init(&rtlpriv->locks.iqk_lock);
 523         /* <5> init list */
 524         INIT_LIST_HEAD(&rtlpriv->entry_list);
 525
 526         /* <6> init deferred work */
 527         if (_rtl_init_deferred_work(hw))
 528                 return 1;
 529
 530         /* <7> */
 531 #ifdef VIF_TODO
 532         rtl_init_vif(hw);
 533 #endif
 534
 535         return 0;
 536 }
 537
 538 void rtl_deinit_core(struct ieee80211_hw *hw)
 539 {
 540 }
 541
 542 void rtl_init_rx_config(struct ieee80211_hw *hw)
 543 {
 544         struct rtl_priv *rtlpriv = rtl_priv(hw);
 545         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 546
 547         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
 548 }
 549
 550 /*********************************************************
 551  *
 552  * tx information functions
 553  *
 554  *********************************************************/
 555 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
 556                                           struct rtl_tcb_desc *tcb_desc,
 557                                           struct ieee80211_tx_info *info)
 558 {
 559         struct rtl_priv *rtlpriv = rtl_priv(hw);
 560         u8 rate_flag = info->control.rates[0].flags;
 561
 562         tcb_desc->use_shortpreamble = false;
 563
 564         /* 1M can only use Long Preamble. 11B spec */
 565         if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
 566                 return;
 567         else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 568                 tcb_desc->use_shortpreamble = true;
 569
 570         return;
 571 }
 572
 573 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
 574                                struct ieee80211_sta *sta,
 575                                struct rtl_tcb_desc *tcb_desc,
 576                                struct ieee80211_tx_info *info)
 577 {
 578         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 579         u8 rate_flag = info->control.rates[0].flags;
 580         u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
 581         tcb_desc->use_shortgi = false;
 582
 583         if (sta == NULL)
 584                 return;
 585
 586         sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
 587         sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
 588
 589         if (!(sta->ht_cap.ht_supported))
 590                 return;
 591
 592         if (!sgi_40 && !sgi_20)
 593                 return;
 594
 595         if (mac->opmode == NL80211_IFTYPE_STATION)
 596                 bw_40 = mac->bw_40;
 597         else if (mac->opmode == NL80211_IFTYPE_AP ||
 598                  mac->opmode == NL80211_IFTYPE_ADHOC ||
 599                  mac->opmode == NL80211_IFTYPE_MESH_POINT)
 600                 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 601
 602         if ((bw_40 == true) && sgi_40)
 603                 tcb_desc->use_shortgi = true;
 604         else if ((bw_40 == false) && sgi_20)
 605                 tcb_desc->use_shortgi = true;
 606
 607         if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
 608                 tcb_desc->use_shortgi = false;
 609 }
 610
 611 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
 612                                        struct rtl_tcb_desc *tcb_desc,
 613                                        struct ieee80211_tx_info *info)
 614 {
 615         struct rtl_priv *rtlpriv = rtl_priv(hw);
 616         u8 rate_flag = info->control.rates[0].flags;
 617
 618         /* Common Settings */
 619         tcb_desc->b_rts_stbc = false;
 620         tcb_desc->b_cts_enable = false;
 621         tcb_desc->rts_sc = 0;
 622         tcb_desc->b_rts_bw = false;
 623         tcb_desc->b_rts_use_shortpreamble = false;
 624         tcb_desc->b_rts_use_shortgi = false;
 625
 626         if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 627                 /* Use CTS-to-SELF in protection mode. */
 628                 tcb_desc->b_rts_enable = true;
 629                 tcb_desc->b_cts_enable = true;
 630                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 631         } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
 632                 /* Use RTS-CTS in protection mode. */
 633                 tcb_desc->b_rts_enable = true;
 634                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
 635         }
 636 }
 637
 638 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
 639                                    struct ieee80211_sta *sta,
 640                                    struct rtl_tcb_desc *tcb_desc)
 641 {
 642         struct rtl_priv *rtlpriv = rtl_priv(hw);
 643         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 644         struct rtl_sta_info *sta_entry = NULL;
 645         u8 ratr_index = 7;
 646
 647         if (sta) {
 648                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 649                 ratr_index = sta_entry->ratr_index;
 650         }
 651         if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
 652                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 653                         tcb_desc->ratr_index = 0;
 654                 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
 655                                 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 656                         if (tcb_desc->b_multicast || tcb_desc->b_broadcast) {
 657                                 tcb_desc->hw_rate =
 658                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
 659                                 tcb_desc->use_driver_rate = 1;
 660                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
 661                         } else {
 662                                 tcb_desc->ratr_index = ratr_index;
 663                         }
 664                 } else if (mac->opmode == NL80211_IFTYPE_AP) {
 665                         tcb_desc->ratr_index = ratr_index;
 666                 }
 667         }
 668
 669         if (rtlpriv->dm.b_useramask) {
 670                 tcb_desc->ratr_index = ratr_index;
 671                 /* TODO we will differentiate adhoc and station future  */
 672                 if (mac->opmode == NL80211_IFTYPE_STATION ||
 673                         mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 674                         tcb_desc->mac_id = 0;
 675                         if (mac->mode == WIRELESS_MODE_N_24G)
 676                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
 677                         else if (mac->mode == WIRELESS_MODE_N_5G)
 678                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
 679                         else if (mac->mode & WIRELESS_MODE_G)
 680                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
 681                         else if (mac->mode & WIRELESS_MODE_B)
 682                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
 683                         else if (mac->mode & WIRELESS_MODE_A)
 684                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
 685                 } else if (mac->opmode == NL80211_IFTYPE_AP ||
 686                         mac->opmode == NL80211_IFTYPE_ADHOC) {
 687                         if (NULL != sta) {
 688                                 if (sta->aid > 0)
 689                                         tcb_desc->mac_id = sta->aid + 1;
 690                                 else
 691                                         tcb_desc->mac_id = 1;
 692                         } else {
 693                                 tcb_desc->mac_id = 0;
 694                         }
 695                 }
 696         }
 697 }
 698
 699 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
 700                                       struct ieee80211_sta *sta,
 701                                       struct rtl_tcb_desc *tcb_desc)
 702 {
 703         struct rtl_priv *rtlpriv = rtl_priv(hw);
 704         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 705
 706         tcb_desc->b_packet_bw = false;
 707         if (!sta)
 708                 return;
 709         if (mac->opmode == NL80211_IFTYPE_AP ||
 710                 mac->opmode == NL80211_IFTYPE_ADHOC ||
 711                 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 712                 if (!(sta->ht_cap.ht_supported) ||
 713                         !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
 714                         return;
 715         } else if (mac->opmode == NL80211_IFTYPE_STATION) {
 716                 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
 717                         return;
 718         }
 719         if (tcb_desc->b_multicast || tcb_desc->b_broadcast)
 720                 return;
 721
 722         /*use legency rate, shall use 20MHz */
 723         if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
 724                 return;
 725
 726         tcb_desc->b_packet_bw = true;
 727 }
 728
 729 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
 730                                   struct ieee80211_sta *sta)
 731 {
 732         struct rtl_priv *rtlpriv = rtl_priv(hw);
 733         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 734         u8 hw_rate;
 735
 736         if ((get_rf_type(rtlphy) == RF_2T2R) && (sta->ht_cap.mcs.rx_mask[1] != 0))
 737                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
 738         else
 739                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
 740
 741         return hw_rate;
 742 }
 743
 744 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
 745                       struct ieee80211_tx_info *info,
 746                       struct ieee80211_sta *sta,
 747                       struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
 748 {
 749         struct rtl_priv *rtlpriv = rtl_priv(hw);
 750         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
 751         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
 752         struct ieee80211_rate *txrate;
 753         u16 fc = rtl_get_fc(skb);
 754
 755         txrate = ieee80211_get_tx_rate(hw, info);
 756         if (txrate != NULL)
 757                 tcb_desc->hw_rate = txrate->hw_value;
 758
 759         if (ieee80211_is_data(fc)) {
 760                 /*
 761                  *we set data rate INX 0
 762                  *in rtl_rc.c   if skb is special data or
 763                  *mgt which need low data rate.
 764                  */
 765
 766                 /*
 767                  *So tcb_desc->hw_rate is just used for
 768                  *special data and mgt frames
 769                  */
 770                 if (info->control.rates[0].idx == 0 ||
 771                                 ieee80211_is_nullfunc(fc)) {
 772                         tcb_desc->use_driver_rate = true;
 773                         tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
 774
 775                         tcb_desc->disable_ratefallback = 1;
 776                 } else {
 777                         /*
 778                          *because hw will never use hw_rate
 779                          *when tcb_desc->use_driver_rate = false
 780                          *so we never set highest N rate here,
 781                          *and N rate will all be controlled by FW
 782                          *when tcb_desc->use_driver_rate = false
 783                          */
 784                         if (sta && (sta->ht_cap.ht_supported)) {
 785                                 tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw, sta);
 786                         } else {
 787                                 if (rtlmac->mode == WIRELESS_MODE_B) {
 788                                         tcb_desc->hw_rate =
 789                                             rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
 790                                 } else {
 791                                         tcb_desc->hw_rate =
 792                                             rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
 793                                 }
 794                         }
 795                 }
 796
 797                 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
 798                         tcb_desc->b_multicast = 1;
 799                 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
 800                         tcb_desc->b_broadcast = 1;
 801
 802                 _rtl_txrate_selectmode(hw, sta, tcb_desc);
 803                 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
 804                 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
 805                 _rtl_query_shortgi(hw, sta, tcb_desc, info);
 806                 _rtl_query_protection_mode(hw, tcb_desc, info);
 807         } else {
 808                 tcb_desc->use_driver_rate = true;
 809                 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
 810                 tcb_desc->disable_ratefallback = 1;
 811                 tcb_desc->mac_id = 0;
 812                 tcb_desc->b_packet_bw = false;
 813         }
 814 }
 815 /* EXPORT_SYMBOL(rtl_get_tcb_desc); */
 816
 817 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
 818 {
 819         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 820         struct rtl_priv *rtlpriv = rtl_priv(hw);
 821         u16 fc = rtl_get_fc(skb);
 822
 823         if (rtlpriv->dm.supp_phymode_switch &&
 824                 mac->link_state < MAC80211_LINKED &&
 825                 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
 826                 if (rtlpriv->cfg->ops->check_switch_to_dmdp)
 827                         rtlpriv->cfg->ops->check_switch_to_dmdp(hw);
 828         }
 829         if (ieee80211_is_auth(fc)) {
 830                 RT_TRACE(COMP_SEND, DBG_DMESG, ("MAC80211_LINKING\n"));
 831                 rtl_ips_nic_on(hw);
 832
 833                 mac->link_state = MAC80211_LINKING;
 834                 /* Dul mac */
 835                 rtlpriv->phy.b_need_iqk = true;
 836
 837         }
 838
 839         return true;
 840 }
 841
 842 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
 843                                 u8 *bssid, u16 tid);
 844 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
 845 {
 846         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 847         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
 848         struct rtl_priv *rtlpriv = rtl_priv(hw);
 849         u16 fc = rtl_get_fc(skb);
 850         u8 *act = (u8 *) (((u8 *) skb->data + MAC80211_3ADDR_LEN));
 851         u8 category;
 852
 853         if (!ieee80211_is_action(fc))
 854                 return true;
 855
 856         category = *act;
 857         act++;
 858         switch (category) {
 859         case ACT_CAT_BA:
 860                 switch (*act) {
 861                 case ACT_ADDBAREQ:
 862                         if (mac->act_scanning)
 863                                 return false;
 864
 865                         RT_TRACE((COMP_SEND | COMP_RECV), DBG_DMESG,
 866                                  ("%s ACT_ADDBAREQ From :%pM\n",
 867                                   is_tx ? "Tx" : "Rx", hdr->addr2));
 868                         RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, ("req\n"),
 869                         skb->data, skb->len);
 870                         if (!is_tx) {
 871                                 struct ieee80211_sta *sta = NULL;
 872                                 struct rtl_sta_info *sta_entry = NULL;
 873                                 struct ieee80211_mgmt *mgmt = (void *)skb->data;
 874                                 u16 capab = 0, tid = 0;
 875                                 struct rtl_tid_data *tid_data;
 876                                 struct sk_buff *skb_delba = NULL;
 877                                 struct ieee80211_rx_status rx_status = { 0 };
 878
 879                                 rcu_read_lock();
 880                                 sta = rtl_find_sta(hw, hdr->addr3);
 881                                 if (sta == NULL) {
 882                                         RT_TRACE((COMP_SEND | COMP_RECV),
 883                                                  DBG_EMERG, ("sta is NULL\n"));
 884                                         rcu_read_unlock();
 885                                         return true;
 886                                 }
 887
 888                                 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
 889                                 if (!sta_entry) {
 890                                         rcu_read_unlock();
 891                                         return true;
 892                                 }
 893                                 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
 894                                 tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
 895                                 tid_data = &sta_entry->tids[tid];
 896                                 if (tid_data->agg.rx_agg_state ==
 897                                     RTL_RX_AGG_START) {
 898                                         skb_delba = rtl_make_del_ba(hw,
 899                                                                     hdr->addr2,
 900                                                                     hdr->addr3,
 901                                                                     tid);
 902                                         if (skb_delba) {
 903 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
 904                                                 rx_status.freq = hw->conf.chandef.chan->center_freq;
 905                                                 rx_status.band = hw->conf.chandef.chan->band;
 906 #else
 907                                                 rx_status.freq = hw->conf.channel->center_freq;
 908                                                 rx_status.band = hw->conf.channel->band;
 909 #endif
 910                                                 rx_status.flag |= RX_FLAG_DECRYPTED;
 911                                                 rx_status.flag |= RX_FLAG_MACTIME_MPDU;
 912                                                 rx_status.rate_idx = 0;
 913                                                 rx_status.signal = 50 + 10;
 914                                                 memcpy(IEEE80211_SKB_RXCB(skb_delba), &rx_status,
 915                                                                 sizeof(rx_status));
 916                                                 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
 917                                                                 ("fake del\n"), skb_delba->data,
 918                                                                 skb_delba->len);
 919                                                 ieee80211_rx_irqsafe(hw, skb_delba);
 920                                         }
 921                                 }
 922                                 rcu_read_unlock();
 923                         }
 924                         break;
 925                 case ACT_ADDBARSP:
 926                         RT_TRACE((COMP_SEND | COMP_RECV), DBG_DMESG,
 927                                  ("%s ACT_ADDBARSP From :%pM\n",
 928                                   is_tx ? "Tx" : "Rx", hdr->addr2));
 929                         break;
 930                 case ACT_DELBA:
 931                         RT_TRACE((COMP_SEND | COMP_RECV), DBG_DMESG,
 932                                  ("ACT_ADDBADEL From :%pM\n", hdr->addr2));
 933                         break;
 934                 }
 935                 break;
 936         default:
 937                 break;
 938         }
 939
 940         return true;
 941 }
 942
 943 /*should call before software enc*/
 944 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
 945 {
 946         struct rtl_priv *rtlpriv = rtl_priv(hw);
 947         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 948         u16 fc = rtl_get_fc(skb);
 949         u16 ether_type;
 950         u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
 951         const struct iphdr *ip;
 952
 953         if (!ieee80211_is_data(fc))
 954                 goto end;
 955
 956
 957         ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len +
 958                               SNAP_SIZE + PROTOC_TYPE_SIZE);
 959         ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE);
 960         ether_type = ntohs(ether_type);
 961
 962         if (ETH_P_IP == ether_type) {
 963                 if (IPPROTO_UDP == ip->protocol) {
 964                         struct udphdr *udp = (struct udphdr *)((u8 *) ip +
 965                                                                (ip->ihl << 2));
 966                         if (((((u8 *) udp)[1] == 68) &&
 967                              (((u8 *) udp)[3] == 67)) ||
 968                             ((((u8 *) udp)[1] == 67) &&
 969                              (((u8 *) udp)[3] == 68))) {
 970                                 /*
 971                                  * 68 : UDP BOOTP client
 972                                  * 67 : UDP BOOTP server
 973                                  */
 974                                 RT_TRACE((COMP_SEND | COMP_RECV),
 975                                          DBG_DMESG, ("dhcp %s !!\n",
 976                                                      (is_tx) ? "Tx" : "Rx"));
 977
 978                                 if (is_tx) {
 979                                         rtlpriv->ra.is_special_data = true;
 980                                         rtl_lps_leave(hw);
 981                                         ppsc->last_delaylps_stamp_jiffies =
 982                                                                         jiffies;
 983                                 }
 984
 985                                 return true;
 986                         }
 987                 }
 988         } else if (ETH_P_ARP == ether_type) {
 989                 if (is_tx) {
 990                         rtlpriv->ra.is_special_data = true;
 991                         rtl_lps_leave(hw);
 992                         ppsc->last_delaylps_stamp_jiffies = jiffies;
 993                 }
 994
 995                 return true;
 996         } else if (ETH_P_PAE == ether_type) {
 997                 RT_TRACE((COMP_SEND | COMP_RECV), DBG_DMESG,
 998                          ("802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"));
 999
1000                 if (is_tx) {
1001                         rtlpriv->ra.is_special_data = true;
1002                         rtl_lps_leave(hw);
1003                         ppsc->last_delaylps_stamp_jiffies = jiffies;
1004                 }
1005
1006                 return true;
1007         } else if (0x86DD == ether_type) {
1008                 return true;
1009         }
1010
1011 end:
1012         rtlpriv->ra.is_special_data = false;
1013         return false;
1014 }
1015
1016 /*********************************************************
1017  *
1018  * functions called by core.c
1019  *
1020  *********************************************************/
1021 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1022                      struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1023 {
1024         struct rtl_priv *rtlpriv = rtl_priv(hw);
1025         struct rtl_tid_data *tid_data;
1026         struct rtl_sta_info *sta_entry = NULL;
1027
1028         if (sta == NULL)
1029                 return -EINVAL;
1030
1031         if (unlikely(tid >= MAX_TID_COUNT))
1032                 return -EINVAL;
1033
1034         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1035         if (!sta_entry)
1036                 return -ENXIO;
1037         tid_data = &sta_entry->tids[tid];
1038
1039         RT_TRACE(COMP_SEND, DBG_DMESG,
1040                  ("on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1041                   tid_data->seq_number));
1042
1043         *ssn = tid_data->seq_number;
1044         tid_data->agg.agg_state = RTL_AGG_START;
1045
1046         ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1047         return 0;
1048 }
1049
1050 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1051                     struct ieee80211_sta *sta, u16 tid)
1052 {
1053         struct rtl_priv *rtlpriv = rtl_priv(hw);
1054         struct rtl_tid_data *tid_data;
1055         struct rtl_sta_info *sta_entry = NULL;
1056
1057         if (sta == NULL)
1058                 return -EINVAL;
1059
1060         if (!sta->addr) {
1061                 RT_TRACE(COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1062                 return -EINVAL;
1063         }
1064
1065         RT_TRACE(COMP_SEND, DBG_DMESG,
1066                  ("on ra = %pM tid = %d\n", sta->addr, tid));
1067
1068         if (unlikely(tid >= MAX_TID_COUNT))
1069                 return -EINVAL;
1070
1071         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1072         tid_data = &sta_entry->tids[tid];
1073         sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1074
1075         ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1076         return 0;
1077 }
1078
1079 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1080                      struct ieee80211_sta *sta, u16 tid)
1081 {
1082         struct rtl_priv *rtlpriv = rtl_priv(hw);
1083         struct rtl_tid_data *tid_data;
1084         struct rtl_sta_info *sta_entry = NULL;
1085
1086         if (sta == NULL)
1087                 return -EINVAL;
1088
1089         if (unlikely(tid >= MAX_TID_COUNT))
1090                 return -EINVAL;
1091
1092         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1093         if (!sta_entry)
1094                 return -ENXIO;
1095         tid_data = &sta_entry->tids[tid];
1096
1097         RT_TRACE(COMP_RECV, DBG_DMESG,
1098                  ("on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1099                  tid_data->seq_number));
1100
1101         tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1102         return 0;
1103 }
1104
1105 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1106                 struct ieee80211_sta *sta, u16 tid)
1107 {
1108         struct rtl_priv *rtlpriv = rtl_priv(hw);
1109         struct rtl_tid_data *tid_data;
1110         struct rtl_sta_info *sta_entry = NULL;
1111
1112         if (sta == NULL)
1113                 return -EINVAL;
1114
1115         if (!sta->addr) {
1116                 RT_TRACE(COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1117                 return -EINVAL;
1118         }
1119
1120         RT_TRACE(COMP_SEND, DBG_DMESG,
1121                  ("on ra = %pM tid = %d\n", sta->addr, tid));
1122
1123         if (unlikely(tid >= MAX_TID_COUNT))
1124                 return -EINVAL;
1125
1126         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1127         tid_data = &sta_entry->tids[tid];
1128         sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1129
1130         return 0;
1131 }
1132 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1133                 struct ieee80211_sta *sta, u16 tid)
1134 {
1135         struct rtl_priv *rtlpriv = rtl_priv(hw);
1136         struct rtl_tid_data *tid_data;
1137         struct rtl_sta_info *sta_entry = NULL;
1138
1139         if (sta == NULL)
1140                 return -EINVAL;
1141
1142         if (!sta->addr) {
1143                 RT_TRACE(COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1144                 return -EINVAL;
1145         }
1146
1147         RT_TRACE(COMP_SEND, DBG_DMESG,
1148                  ("on ra = %pM tid = %d\n", sta->addr, tid));
1149
1150         if (unlikely(tid >= MAX_TID_COUNT))
1151                 return -EINVAL;
1152
1153         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1154         tid_data = &sta_entry->tids[tid];
1155         sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1156
1157         return 0;
1158 }
1159
1160 /*********************************************************
1161  *
1162  * wq & timer callback functions
1163  *
1164  *********************************************************/
1165 /* this function is used for roaming */
1166 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1167 {
1168         struct rtl_priv *rtlpriv = rtl_priv(hw);
1169         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1170
1171         if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1172                 return;
1173
1174         if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1175                 return;
1176
1177         /* check if this really is a beacon */
1178         if (!ieee80211_is_beacon(hdr->frame_control) &&
1179                 !ieee80211_is_probe_resp(hdr->frame_control))
1180                 return;
1181
1182         /* min. beacon length + FCS_LEN */
1183         if (skb->len <= 40 + FCS_LEN)
1184                 return;
1185
1186         /* and only beacons from the associated BSSID, please */
1187         if (ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1188                 return;
1189
1190         rtlpriv->link_info.bcn_rx_inperiod++;
1191 }
1192
1193 void rtl_watchdog_wq_callback(void *data)
1194 {
1195         struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1196                                                             struct rtl_works,
1197                                                             watchdog_wq);
1198         struct ieee80211_hw *hw = rtlworks->hw;
1199         struct rtl_priv *rtlpriv = rtl_priv(hw);
1200         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1201         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1202         bool b_busytraffic = false;
1203         bool b_tx_busy_traffic = false;
1204         bool b_rx_busy_traffic = false;
1205         bool b_higher_busytraffic = false;
1206         bool b_higher_busyrxtraffic = false;
1207         u8 idx, tid;
1208         u32 rx_cnt_inp4eriod = 0;
1209         u32 tx_cnt_inp4eriod = 0;
1210         u32 aver_rx_cnt_inperiod = 0;
1211         u32 aver_tx_cnt_inperiod = 0;
1212         u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1213         u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1214         bool benter_ps = false;
1215
1216         if (is_hal_stop(rtlhal))
1217                 return;
1218
1219         /* <1> Determine if action frame is allowed */
1220         if (mac->link_state > MAC80211_NOLINK) {
1221                 if (mac->cnt_after_linked < 20)
1222                         mac->cnt_after_linked++;
1223         } else {
1224                 mac->cnt_after_linked = 0;
1225         }
1226
1227         /* <2> to check if traffic busy, if
1228          * busytraffic we don't change channel */
1229         if (mac->link_state >= MAC80211_LINKED) {
1230
1231                 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1232                 for (idx = 0; idx <= 2; idx++) {
1233                         rtlpriv->link_info.num_rx_in4period[idx] =
1234                             rtlpriv->link_info.num_rx_in4period[idx + 1];
1235                         rtlpriv->link_info.num_tx_in4period[idx] =
1236                             rtlpriv->link_info.num_tx_in4period[idx + 1];
1237                 }
1238                 rtlpriv->link_info.num_rx_in4period[3] =
1239                     rtlpriv->link_info.num_rx_inperiod;
1240                 rtlpriv->link_info.num_tx_in4period[3] =
1241                     rtlpriv->link_info.num_tx_inperiod;
1242                 for (idx = 0; idx <= 3; idx++) {
1243                         rx_cnt_inp4eriod +=
1244                             rtlpriv->link_info.num_rx_in4period[idx];
1245                         tx_cnt_inp4eriod +=
1246                             rtlpriv->link_info.num_tx_in4period[idx];
1247                 }
1248                 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1249                 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1250
1251                 /* (2) check traffic busy */
1252                 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1253                         b_busytraffic = true;
1254                         if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1255                                 b_rx_busy_traffic = true;
1256                         else
1257                                 b_tx_busy_traffic = false;
1258                 }
1259
1260                 /* Higher Tx/Rx data. */
1261                 if (aver_rx_cnt_inperiod > 4000 ||
1262                         aver_tx_cnt_inperiod > 4000) {
1263                         b_higher_busytraffic = true;
1264
1265                         /* Extremely high Rx data. */
1266                         if (aver_rx_cnt_inperiod > 5000)
1267                                 b_higher_busyrxtraffic = true;
1268                 }
1269
1270                 /* check every tid's tx traffic */
1271                 for (tid = 0; tid <= 7; tid++) {
1272                         for (idx = 0; idx <= 2; idx++)
1273                                 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1274                                         rtlpriv->link_info.tidtx_in4period[tid]
1275                                         [idx + 1];
1276                         rtlpriv->link_info.tidtx_in4period[tid][3] =
1277                                 rtlpriv->link_info.tidtx_inperiod[tid];
1278
1279                         for (idx = 0; idx <= 3; idx++)
1280                                 tidtx_inp4eriod[tid] +=
1281                                    rtlpriv->link_info.tidtx_in4period[tid][idx];
1282                         aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1283                         if (aver_tidtx_inperiod[tid] > 5000)
1284                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1285                                                                         true;
1286                         else
1287                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1288                                                                         false;
1289                 }
1290
1291                 if (((rtlpriv->link_info.num_rx_inperiod +
1292                       rtlpriv->link_info.num_tx_inperiod) > 8) ||
1293                     (rtlpriv->link_info.num_rx_inperiod > 2))
1294                         benter_ps = false;
1295                 else
1296                         benter_ps = true;
1297
1298                 /* LeisurePS only work in infra mode. */
1299                 if (benter_ps)
1300                         rtl_lps_enter(hw);
1301                 else
1302                         rtl_lps_leave(hw);
1303         }
1304
1305         rtlpriv->link_info.num_rx_inperiod = 0;
1306         rtlpriv->link_info.num_tx_inperiod = 0;
1307         for (tid = 0; tid <= 7; tid++)
1308                 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1309
1310         rtlpriv->link_info.b_busytraffic = b_busytraffic;
1311         rtlpriv->link_info.b_rx_busy_traffic = b_rx_busy_traffic;
1312         rtlpriv->link_info.b_tx_busy_traffic = b_tx_busy_traffic;
1313         rtlpriv->link_info.b_higher_busytraffic = b_higher_busytraffic;
1314         rtlpriv->link_info.b_higher_busyrxtraffic = b_higher_busyrxtraffic;
1315
1316         /* <3> DM */
1317         rtlpriv->cfg->ops->dm_watchdog(hw);
1318
1319         /* <4> roaming */
1320         if (mac->link_state == MAC80211_LINKED &&
1321                         mac->opmode == NL80211_IFTYPE_STATION) {
1322                 if ((rtlpriv->link_info.bcn_rx_inperiod +
1323                         rtlpriv->link_info.num_rx_inperiod) == 0) {
1324                         rtlpriv->link_info.roam_times++;
1325                         RT_TRACE(COMP_ERR, DBG_DMESG, ("AP off for %d s\n",
1326                                 (rtlpriv->link_info.roam_times * 2)));
1327
1328                         /* if we can't recv beacon for 10s,
1329                          * we should reconnect this AP */
1330                         if (rtlpriv->link_info.roam_times >= 5) {
1331                                 RT_TRACE(COMP_ERR, DBG_EMERG,
1332                                          ("AP off, try to reconnect now\n"));
1333                                 rtlpriv->link_info.roam_times = 0;
1334                                 ieee80211_connection_loss(rtlpriv->mac80211.vif);
1335                         }
1336                 } else {
1337                         rtlpriv->link_info.roam_times = 0;
1338                 }
1339         }
1340         rtlpriv->link_info.bcn_rx_inperiod = 0;
1341 }
1342
1343 void rtl_watch_dog_timer_callback(unsigned long data)
1344 {
1345         struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1346         struct rtl_priv *rtlpriv = rtl_priv(hw);
1347
1348         queue_delayed_work(rtlpriv->works.rtl_wq,
1349                            &rtlpriv->works.watchdog_wq, 0);
1350
1351         mod_timer(&rtlpriv->works.watchdog_timer,
1352                   jiffies + MSECS(RTL_WATCH_DOG_TIME));
1353 }
1354 void rtl_fwevt_wq_callback(void *data)
1355 {
1356         struct rtl_works *rtlworks =
1357                 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1358         struct ieee80211_hw *hw = rtlworks->hw;
1359         struct rtl_priv *rtlpriv = rtl_priv(hw);
1360
1361         rtlpriv->cfg->ops->c2h_command_handle(hw);
1362 }
1363 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1364 {
1365         struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1366         struct rtl_priv *rtlpriv = rtl_priv(hw);
1367         struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1368
1369         if (buddy_priv == NULL)
1370                 return;
1371
1372         rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1373 }
1374 /*********************************************************
1375  *
1376  * frame process functions
1377  *
1378  *********************************************************/
1379 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1380 {
1381         struct ieee80211_mgmt *mgmt = (void *)data;
1382         u8 *pos, *end;
1383
1384         pos = (u8 *)mgmt->u.beacon.variable;
1385         end = data + len;
1386         while (pos < end) {
1387                 if (pos + 2 + pos[1] > end)
1388                         return NULL;
1389
1390                 if (pos[0] == ie)
1391                         return pos;
1392
1393                 pos += 2 + pos[1];
1394         }
1395         return NULL;
1396 }
1397
1398 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1399 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1400 struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1401                                      enum ieee80211_smps_mode smps,
1402                                      u8 *da, u8 *bssid)
1403 {
1404         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1405         struct sk_buff *skb;
1406         struct ieee80211_mgmt_compat *action_frame;
1407
1408         /* 27 = header + category + action + smps mode */
1409         skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1410         if (!skb)
1411                 return NULL;
1412
1413         skb_reserve(skb, hw->extra_tx_headroom);
1414         action_frame = (void *)skb_put(skb, 27);
1415         memset(action_frame, 0, 27);
1416         memcpy(action_frame->da, da, ETH_ALEN);
1417         memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1418         memcpy(action_frame->bssid, bssid, ETH_ALEN);
1419         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1420                                                   IEEE80211_STYPE_ACTION);
1421         action_frame->u.action.category = WLAN_CATEGORY_HT;
1422         action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1423         switch (smps) {
1424         case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1425         case IEEE80211_SMPS_NUM_MODES:/* 4 */
1426                 WARN_ON(1);
1427         case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1428                 action_frame->u.action.u.ht_smps.smps_control =
1429                                 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1430                 break;
1431         case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1432                 action_frame->u.action.u.ht_smps.smps_control =
1433                                 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1434                 break;
1435         case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1436                 action_frame->u.action.u.ht_smps.smps_control =
1437                                 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1438                 break;
1439         }
1440
1441         return skb;
1442 }
1443
1444 int rtl_send_smps_action(struct ieee80211_hw *hw,
1445                          struct ieee80211_sta *sta,
1446                          enum ieee80211_smps_mode smps)
1447 {
1448         struct rtl_priv *rtlpriv = rtl_priv(hw);
1449         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1450         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1451         struct sk_buff *skb = NULL;
1452         struct rtl_tcb_desc tcb_desc;
1453         u8 bssid[ETH_ALEN] = {0};
1454
1455         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1456
1457         if (rtlpriv->mac80211.act_scanning)
1458                 goto err_free;
1459
1460         if (!sta)
1461                 goto err_free;
1462
1463         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1464                 goto err_free;
1465
1466         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1467                 goto err_free;
1468
1469         if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1470                 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1471         else
1472                 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1473
1474         skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1475         /* this is a type = mgmt * stype = action frame */
1476         if (skb) {
1477                 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1478                 struct rtl_sta_info *sta_entry =
1479                         (struct rtl_sta_info *) sta->drv_priv;
1480                 sta_entry->mimo_ps = smps;
1481                 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */
1482
1483                 info->control.rates[0].idx = 0;
1484 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
1485                 info->band = hw->conf.chandef.chan->band;
1486 #else
1487                 info->band = hw->conf.channel->band;
1488 #endif
1489 /*<delete in kernel start>*/
1490 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0))
1491                 info->control.sta = sta;
1492                 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
1493 #else
1494 /*<delete in kernel end>*/
1495                 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1496 /*<delete in kernel start>*/
1497 #endif
1498 /*<delete in kernel end>*/
1499         }
1500         return 1;
1501
1502 err_free:
1503         return 0;
1504 }
1505 /* EXPORT_SYMBOL(rtl_send_smps_action); */
1506
1507 /* because mac80211 have issues when can receive del ba
1508  * so here we just make a fake del_ba if we receive a ba_req
1509  * but rx_agg was opened to let mac80211 release some ba
1510  * related resources, so please this del_ba for tx */
1511 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1512                                 u8 *sa, u8 *bssid, u16 tid)
1513 {
1514         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1515         struct sk_buff *skb;
1516         struct ieee80211_mgmt *action_frame;
1517         u16 params;
1518
1519         /* 27 = header + category + action + smps mode */
1520         skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1521         if (!skb)
1522                 return NULL;
1523
1524         skb_reserve(skb, hw->extra_tx_headroom);
1525         action_frame = (void *)skb_put(skb, 34);
1526         memset(action_frame, 0, 34);
1527         memcpy(action_frame->sa, sa, ETH_ALEN);
1528         memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1529         memcpy(action_frame->bssid, bssid, ETH_ALEN);
1530         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1531                                                   IEEE80211_STYPE_ACTION);
1532         action_frame->u.action.category = WLAN_CATEGORY_BACK;
1533         action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1534         params = (u16)(1 << 11);        /* bit 11 initiator */
1535         params |= (u16)(tid << 12);     /* bit 15:12 TID number */
1536
1537         action_frame->u.action.u.delba.params = cpu_to_le16(params);
1538         action_frame->u.action.u.delba.reason_code =
1539                 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1540
1541         return skb;
1542 }
1543
1544 /*********************************************************
1545  *
1546  * IOT functions
1547  *
1548  *********************************************************/
1549 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1550                                   struct octet_string vendor_ie)
1551 {
1552         struct rtl_priv *rtlpriv = rtl_priv(hw);
1553         bool matched = false;
1554         static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1555         static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1556         static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1557         static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1558         static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1559         static u8 racap[] = { 0x00, 0x0c, 0x43 };
1560         static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1561         static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1562
1563         if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1564                 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1565                 rtlpriv->mac80211.vendor = PEER_ATH;
1566                 matched = true;
1567         } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1568                 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1569                 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1570                 rtlpriv->mac80211.vendor = PEER_BROAD;
1571                 matched = true;
1572         } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1573                 rtlpriv->mac80211.vendor = PEER_RAL;
1574                 matched = true;
1575         } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1576                 rtlpriv->mac80211.vendor = PEER_CISCO;
1577                 matched = true;
1578         } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1579                 rtlpriv->mac80211.vendor = PEER_MARV;
1580                 matched = true;
1581         }
1582
1583         return matched;
1584 }
1585
1586 bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1587                 unsigned int len)
1588 {
1589         struct ieee80211_mgmt *mgmt = (void *)data;
1590         struct octet_string vendor_ie;
1591         u8 *pos, *end;
1592
1593         pos = (u8 *)mgmt->u.beacon.variable;
1594         end = data + len;
1595         while (pos < end) {
1596                 if (pos[0] == 221) {
1597                         vendor_ie.length = pos[1];
1598                         vendor_ie.octet = &pos[2];
1599                         if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1600                                 return true;
1601                 }
1602
1603                 if (pos + 2 + pos[1] > end)
1604                         return false;
1605
1606                 pos += 2 + pos[1];
1607         }
1608         return false;
1609 }
1610
1611 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1612 {
1613         struct rtl_priv *rtlpriv = rtl_priv(hw);
1614         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1615         struct ieee80211_hdr *hdr = (void *)data;
1616         u32 vendor = PEER_UNKNOWN;
1617
1618         static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1619         static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1620         static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1621         static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1622         static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1623         static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1624         static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1625         static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1626         static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1627         static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1628         static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1629         static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1630         static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1631         static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1632         static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1633         static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1634
1635         if (mac->opmode != NL80211_IFTYPE_STATION)
1636                 return;
1637
1638         if (mac->link_state == MAC80211_NOLINK) {
1639                 mac->vendor = PEER_UNKNOWN;
1640                 return;
1641         }
1642
1643         if (mac->cnt_after_linked > 2)
1644                 return;
1645
1646         /* check if this really is a beacon */
1647         if (!ieee80211_is_beacon(hdr->frame_control))
1648                 return;
1649
1650         /* min. beacon length + FCS_LEN */
1651         if (len <= 40 + FCS_LEN)
1652                 return;
1653
1654         /* and only beacons from the associated BSSID, please */
1655         if (ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1656                 return;
1657
1658         if (rtl_find_221_ie(hw, data, len))
1659                 vendor = mac->vendor;
1660
1661         if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1662                 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1663                 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1664                 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1665                 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1666                 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1667                 vendor == PEER_ATH) {
1668                 vendor = PEER_ATH;
1669                 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>ath find\n"));
1670         } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1671                 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1672                 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1673                 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1674                 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1675                 vendor == PEER_RAL) {
1676                 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>ral find\n"));
1677                 vendor = PEER_RAL;
1678         } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1679                 vendor == PEER_CISCO) {
1680                 vendor = PEER_CISCO;
1681                 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>cisco find\n"));
1682         } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1683                 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1684                 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1685                 vendor == PEER_BROAD) {
1686                 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>broad find\n"));
1687                 vendor = PEER_BROAD;
1688         } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1689                 vendor == PEER_MARV) {
1690                 vendor = PEER_MARV;
1691                 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>marv find\n"));
1692         }
1693
1694         mac->vendor = vendor;
1695 }
1696
1697 /*********************************************************
1698  *
1699  * sysfs functions
1700  *
1701  *********************************************************/
1702 static ssize_t rtl_show_debug_level(struct device *d,
1703                                     struct device_attribute *attr, char *buf)
1704 {
1705         struct ieee80211_hw *hw = dev_get_drvdata(d);
1706         struct rtl_priv *rtlpriv = rtl_priv(hw);
1707
1708         return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1709 }
1710
1711 static ssize_t rtl_store_debug_level(struct device *d,
1712                                      struct device_attribute *attr,
1713                                      const char *buf, size_t count)
1714 {
1715         struct ieee80211_hw *hw = dev_get_drvdata(d);
1716         struct rtl_priv *rtlpriv = rtl_priv(hw);
1717         unsigned long val;
1718         int ret;
1719
1720         ret = kstrtoul(buf, 0, &val);
1721         if (ret) {
1722                 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1723         } else {
1724                 rtlpriv->dbg.global_debuglevel = val;
1725                 printk(KERN_DEBUG "debuglevel:%x\n",
1726                         rtlpriv->dbg.global_debuglevel);
1727         }
1728
1729         return strnlen(buf, count);
1730 }
1731
1732 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1733                    rtl_show_debug_level, rtl_store_debug_level);
1734
1735 static struct attribute *rtl_sysfs_entries[] = {
1736
1737         &dev_attr_debug_level.attr,
1738
1739         NULL
1740 };
1741
1742 /*
1743  * "name" is folder name witch will be
1744  * put in device directory like :
1745  * sys/devices/pci0000:00/0000:00:1c.4/
1746  * 0000:06:00.0/rtl_sysfs
1747  */
1748 struct attribute_group rtl_attribute_group = {
1749         .name = "rtlsysfs",
1750         .attrs = rtl_sysfs_entries,
1751 };
1752
1753 #ifdef VIF_TODO
1754 /*********************************************************
1755  *
1756  * vif functions
1757  *
1758  *********************************************************/
1759 static inline struct ieee80211_vif *
1760 rtl_get_vif(struct rtl_vif_info *vif_priv)
1761 {
1762         return container_of((void *)vif_priv, struct ieee80211_vif, drv_priv);
1763 }
1764
1765 /* Protected by ar->mutex or RCU */
1766 struct ieee80211_vif *rtl_get_main_vif(struct ieee80211_hw *hw)
1767 {
1768         struct rtl_priv *rtlpriv = rtl_priv(hw);
1769         struct rtl_vif_info *cvif;
1770
1771         list_for_each_entry_rcu(cvif, &rtlpriv->vif_priv.vif_list, list) {
1772                 if (cvif->active)
1773                         return rtl_get_vif(cvif);
1774         }
1775
1776         return NULL;
1777 }
1778
1779 static inline bool is_main_vif(struct ieee80211_hw *hw,
1780                                struct ieee80211_vif *vif)
1781 {
1782         bool ret;
1783
1784         rcu_read_lock();
1785         ret = (rtl_get_main_vif(hw) == vif);
1786         rcu_read_unlock();
1787         return ret;
1788 }
1789
1790 bool rtl_set_vif_info(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1791 {
1792         struct rtl_vif_info *vif_info = (void *) vif->drv_priv;
1793         struct rtl_priv *rtlpriv = rtl_priv(hw);
1794         int vif_id = -1;
1795
1796         if (rtlpriv->vif_priv.vifs >= MAX_VIRTUAL_MAC) {
1797                 RT_TRACE(COMP_ERR, DBG_WARNING,
1798                          ("vif number can not bigger than %d, now vifs is:%d\n",
1799                           MAX_VIRTUAL_MAC, rtlpriv->vif_priv.vifs));
1800                 return false;
1801         }
1802
1803         rcu_read_lock();
1804         vif_id = bitmap_find_free_region(&rtlpriv->vif_priv.vif_bitmap,
1805                                          MAX_VIRTUAL_MAC, 0);
1806         RT_TRACE(COMP_MAC80211, DBG_DMESG,
1807                  ("%s vid_id:%d\n", __func__, vif_id));
1808
1809         if (vif_id < 0) {
1810                 rcu_read_unlock();
1811                 return false;
1812         }
1813
1814         BUG_ON(rtlpriv->vif_priv.vif[vif_id].id != vif_id);
1815         vif_info->active = true;
1816         vif_info->id = vif_id;
1817         vif_info->enable_beacon = false;
1818         rtlpriv->vif_priv.vifs++;
1819         if (rtlpriv->vif_priv.vifs > 1) {
1820                 rtlpriv->psc.b_inactiveps = false;
1821                 rtlpriv->psc.b_swctrl_lps = false;
1822                 rtlpriv->psc.b_fwctrl_lps = false;
1823         }
1824
1825         list_add_tail_rcu(&vif_info->list, &rtlpriv->vif_priv.vif_list);
1826         rcu_assign_pointer(rtlpriv->vif_priv.vif[vif_id].vif, vif);
1827
1828         RT_TRACE(COMP_MAC80211, DBG_DMESG, ("vifaddress:%p %p %p\n",
1829                  rtlpriv->vif_priv.vif[vif_id].vif, vif, rtl_get_main_vif(hw)));
1830
1831         rcu_read_unlock();
1832
1833         return true;
1834 }
1835 #endif
1836
1837
1838 #if 0
1839 MODULE_AUTHOR("lizhaoming       <chaoming_li@realsil.com.cn>");
1840 MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
1841 MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
1842 MODULE_LICENSE("GPL");
1843 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1844 #endif
1845 struct rtl_global_var global_var = {};
1846
1847 int rtl_core_module_init(void)
1848 {
1849         if (rtl_rate_control_register())
1850                 printk(KERN_DEBUG "rtl: Unable to register rtl_rc, use default RC !!\n");
1851
1852         /* add proc for debug */
1853         rtl_proc_add_topdir();
1854
1855         /* init some global vars */
1856         INIT_LIST_HEAD(&global_var.glb_priv_list);
1857         spin_lock_init(&global_var.glb_list_lock);
1858
1859         return 0;
1860 }
1861
1862 void rtl_core_module_exit(void)
1863 {
1864         /*RC*/
1865         rtl_rate_control_unregister();
1866
1867         /* add proc for debug */
1868         rtl_proc_remove_topdir();
1869 }
1870
1871 #if 0
1872 module_init(rtl_core_module_init);
1873 module_exit(rtl_core_module_exit);
1874 #endif