drivers/net/wireless/rtlwifi/core.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 "wifi.h"
  31 #include "core.h"
  32 #include "cam.h"
  33 #include "base.h"
  34 #include "ps.h"
  35
  36 /*mutex for start & stop is must here. */
  37 static int rtl_op_start(struct ieee80211_hw *hw)
  38 {
  39         int err;
  40         struct rtl_priv *rtlpriv = rtl_priv(hw);
  41         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
  42
  43         if (!is_hal_stop(rtlhal))
  44                 return 0;
  45         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
  46                 return 0;
  47         mutex_lock(&rtlpriv->locks.conf_mutex);
  48         err = rtlpriv->intf_ops->adapter_start(hw);
  49         if (!err)
  50                 rtl_watch_dog_timer_callback((unsigned long)hw);
  51         mutex_unlock(&rtlpriv->locks.conf_mutex);
  52         return err;
  53 }
  54
  55 static void rtl_op_stop(struct ieee80211_hw *hw)
  56 {
  57         struct rtl_priv *rtlpriv = rtl_priv(hw);
  58         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
  59         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
  60         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
  61
  62         if (is_hal_stop(rtlhal))
  63                 return;
  64
  65         if (unlikely(ppsc->rfpwr_state == ERFOFF)) {
  66                 rtl_ips_nic_on(hw);
  67                 mdelay(1);
  68         }
  69
  70         mutex_lock(&rtlpriv->locks.conf_mutex);
  71
  72         mac->link_state = MAC80211_NOLINK;
  73         memset(mac->bssid, 0, 6);
  74         mac->vendor = PEER_UNKNOWN;
  75
  76         /*reset sec info */
  77         rtl_cam_reset_sec_info(hw);
  78
  79         rtl_deinit_deferred_work(hw);
  80         rtlpriv->intf_ops->adapter_stop(hw);
  81
  82         mutex_unlock(&rtlpriv->locks.conf_mutex);
  83 }
  84
  85 static void rtl_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
  86 {
  87         struct rtl_priv *rtlpriv = rtl_priv(hw);
  88         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
  89         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
  90         struct rtl_tcb_desc tcb_desc;
  91         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
  92
  93         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
  94                 goto err_free;
  95
  96         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
  97                 goto err_free;
  98
  99         if (!rtlpriv->intf_ops->waitq_insert(hw, skb))
 100                 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
 101
 102         return;
 103
 104 err_free:
 105         dev_kfree_skb_any(skb);
 106 }
 107
 108 static int rtl_op_add_interface(struct ieee80211_hw *hw,
 109                 struct ieee80211_vif *vif)
 110 {
 111         struct rtl_priv *rtlpriv = rtl_priv(hw);
 112         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 113         int err = 0;
 114
 115         if (mac->vif) {
 116                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 117                          ("vif has been set!! mac->vif = 0x%p\n", mac->vif));
 118                 return -EOPNOTSUPP;
 119         }
 120
 121         rtl_ips_nic_on(hw);
 122
 123         mutex_lock(&rtlpriv->locks.conf_mutex);
 124         switch (vif->type) {
 125         case NL80211_IFTYPE_STATION:
 126                 if (mac->beacon_enabled == 1) {
 127                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 128                                  ("NL80211_IFTYPE_STATION\n"));
 129                         mac->beacon_enabled = 0;
 130                         rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 131                                         rtlpriv->cfg->maps
 132                                         [RTL_IBSS_INT_MASKS]);
 133                 }
 134                 break;
 135         case NL80211_IFTYPE_ADHOC:
 136                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 137                          ("NL80211_IFTYPE_ADHOC\n"));
 138
 139                 mac->link_state = MAC80211_LINKED;
 140                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 141                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 142                         mac->basic_rates = 0xfff;
 143                 else
 144                         mac->basic_rates = 0xff0;
 145                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 146                                 (u8 *) (&mac->basic_rates));
 147
 148                 break;
 149         case NL80211_IFTYPE_AP:
 150                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 151                          ("NL80211_IFTYPE_AP\n"));
 152
 153                 mac->link_state = MAC80211_LINKED;
 154                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 155                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 156                         mac->basic_rates = 0xfff;
 157                 else
 158                         mac->basic_rates = 0xff0;
 159                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 160                                 (u8 *) (&mac->basic_rates));
 161                 break;
 162         default:
 163                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 164                          ("operation mode %d is not support!\n", vif->type));
 165                 err = -EOPNOTSUPP;
 166                 goto out;
 167         }
 168
 169         mac->vif = vif;
 170         mac->opmode = vif->type;
 171         rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 172         memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
 173         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
 174
 175 out:
 176         mutex_unlock(&rtlpriv->locks.conf_mutex);
 177         return err;
 178 }
 179
 180 static void rtl_op_remove_interface(struct ieee80211_hw *hw,
 181                 struct ieee80211_vif *vif)
 182 {
 183         struct rtl_priv *rtlpriv = rtl_priv(hw);
 184         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 185
 186         mutex_lock(&rtlpriv->locks.conf_mutex);
 187
 188         /* Free beacon resources */
 189         if ((mac->opmode == NL80211_IFTYPE_AP) ||
 190             (mac->opmode == NL80211_IFTYPE_ADHOC) ||
 191             (mac->opmode == NL80211_IFTYPE_MESH_POINT)) {
 192                 if (mac->beacon_enabled == 1) {
 193                         mac->beacon_enabled = 0;
 194                         rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 195                                         rtlpriv->cfg->maps
 196                                         [RTL_IBSS_INT_MASKS]);
 197                 }
 198         }
 199
 200         /*
 201          *Note: We assume NL80211_IFTYPE_UNSPECIFIED as
 202          *NO LINK for our hardware.
 203          */
 204         mac->vif = NULL;
 205         mac->link_state = MAC80211_NOLINK;
 206         memset(mac->bssid, 0, 6);
 207         mac->vendor = PEER_UNKNOWN;
 208         mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
 209         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
 210         mutex_unlock(&rtlpriv->locks.conf_mutex);
 211 }
 212
 213 static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
 214 {
 215         struct rtl_priv *rtlpriv = rtl_priv(hw);
 216         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 217         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 218         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 219         struct ieee80211_conf *conf = &hw->conf;
 220
 221         mutex_lock(&rtlpriv->locks.conf_mutex);
 222         if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {  /*BIT(2)*/
 223                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 224                          ("IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n"));
 225         }
 226
 227         /*For IPS */
 228         if (changed & IEEE80211_CONF_CHANGE_IDLE) {
 229                 if (hw->conf.flags & IEEE80211_CONF_IDLE)
 230                         rtl_ips_nic_off(hw);
 231                 else
 232                         rtl_ips_nic_on(hw);
 233         } else {
 234                 /*
 235                  *although rfoff may not cause by ips, but we will
 236                  *check the reason in set_rf_power_state function
 237                  */
 238                 if (unlikely(ppsc->rfpwr_state == ERFOFF))
 239                         rtl_ips_nic_on(hw);
 240         }
 241
 242         /*For LPS */
 243         if (changed & IEEE80211_CONF_CHANGE_PS) {
 244                 cancel_delayed_work(&rtlpriv->works.ps_work);
 245                 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 246                 if (conf->flags & IEEE80211_CONF_PS) {
 247                         rtlpriv->psc.sw_ps_enabled = true;
 248                         /* sleep here is must, or we may recv the beacon and
 249                          * cause mac80211 into wrong ps state, this will cause
 250                          * power save nullfunc send fail, and further cause
 251                          * pkt loss, So sleep must quickly but not immediatly
 252                          * because that will cause nullfunc send by mac80211
 253                          * fail, and cause pkt loss, we have tested that 5mA
 254                          * is worked very well */
 255                         if (!rtlpriv->psc.multi_buffered)
 256                                 queue_delayed_work(rtlpriv->works.rtl_wq,
 257                                                 &rtlpriv->works.ps_work,
 258                                                 MSECS(5));
 259                 } else {
 260                         rtl_swlps_rf_awake(hw);
 261                         rtlpriv->psc.sw_ps_enabled = false;
 262                 }
 263         }
 264
 265         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
 266                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 267                          ("IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
 268                           hw->conf.long_frame_max_tx_count));
 269                 mac->retry_long = hw->conf.long_frame_max_tx_count;
 270                 mac->retry_short = hw->conf.long_frame_max_tx_count;
 271                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
 272                                               (u8 *) (&hw->conf.
 273                                                       long_frame_max_tx_count));
 274         }
 275
 276         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 277                 struct ieee80211_channel *channel = hw->conf.channel;
 278                 u8 wide_chan = (u8) channel->hw_value;
 279
 280                 /*
 281                  *because we should back channel to
 282                  *current_network.chan in in scanning,
 283                  *So if set_chan == current_network.chan
 284                  *we should set it.
 285                  *because mac80211 tell us wrong bw40
 286                  *info for cisco1253 bw20, so we modify
 287                  *it here based on UPPER & LOWER
 288                  */
 289                 switch (hw->conf.channel_type) {
 290                 case NL80211_CHAN_HT20:
 291                 case NL80211_CHAN_NO_HT:
 292                         /* SC */
 293                         mac->cur_40_prime_sc =
 294                                 PRIME_CHNL_OFFSET_DONT_CARE;
 295                         rtlphy->current_chan_bw = HT_CHANNEL_WIDTH_20;
 296                         mac->bw_40 = false;
 297                         break;
 298                 case NL80211_CHAN_HT40MINUS:
 299                         /* SC */
 300                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_UPPER;
 301                         rtlphy->current_chan_bw =
 302                                 HT_CHANNEL_WIDTH_20_40;
 303                         mac->bw_40 = true;
 304
 305                         /*wide channel */
 306                         wide_chan -= 2;
 307
 308                         break;
 309                 case NL80211_CHAN_HT40PLUS:
 310                         /* SC */
 311                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_LOWER;
 312                         rtlphy->current_chan_bw =
 313                                 HT_CHANNEL_WIDTH_20_40;
 314                         mac->bw_40 = true;
 315
 316                         /*wide channel */
 317                         wide_chan += 2;
 318
 319                         break;
 320                 default:
 321                         mac->bw_40 = false;
 322                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 323                                         ("switch case not processed\n"));
 324                         break;
 325                 }
 326
 327                 if (wide_chan <= 0)
 328                         wide_chan = 1;
 329
 330                 /* In scanning, before we go offchannel we may send a ps=1 null
 331                  * to AP, and then we may send a ps = 0 null to AP quickly, but
 332                  * first null may have caused AP to put lots of packet to hw tx
 333                  * buffer. These packets must be tx'd before we go off channel
 334                  * so we must delay more time to let AP flush these packets
 335                  * before going offchannel, or dis-association or delete BA will
 336                  * happen by AP
 337                  */
 338                 if (rtlpriv->mac80211.offchan_delay) {
 339                         rtlpriv->mac80211.offchan_delay = false;
 340                         mdelay(50);
 341                 }
 342                 rtlphy->current_channel = wide_chan;
 343
 344                 rtlpriv->cfg->ops->switch_channel(hw);
 345                 rtlpriv->cfg->ops->set_channel_access(hw);
 346                 rtlpriv->cfg->ops->set_bw_mode(hw,
 347                                                hw->conf.channel_type);
 348         }
 349
 350         mutex_unlock(&rtlpriv->locks.conf_mutex);
 351
 352         return 0;
 353 }
 354
 355 static void rtl_op_configure_filter(struct ieee80211_hw *hw,
 356                              unsigned int changed_flags,
 357                              unsigned int *new_flags, u64 multicast)
 358 {
 359         struct rtl_priv *rtlpriv = rtl_priv(hw);
 360         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 361
 362         *new_flags &= RTL_SUPPORTED_FILTERS;
 363         if (!changed_flags)
 364                 return;
 365
 366         /*TODO: we disable broadcase now, so enable here */
 367         if (changed_flags & FIF_ALLMULTI) {
 368                 if (*new_flags & FIF_ALLMULTI) {
 369                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
 370                             rtlpriv->cfg->maps[MAC_RCR_AB];
 371                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 372                                  ("Enable receive multicast frame.\n"));
 373                 } else {
 374                         mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
 375                                           rtlpriv->cfg->maps[MAC_RCR_AB]);
 376                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 377                                  ("Disable receive multicast frame.\n"));
 378                 }
 379         }
 380
 381         if (changed_flags & FIF_FCSFAIL) {
 382                 if (*new_flags & FIF_FCSFAIL) {
 383                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 384                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 385                                  ("Enable receive FCS error frame.\n"));
 386                 } else {
 387                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 388                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 389                                  ("Disable receive FCS error frame.\n"));
 390                 }
 391         }
 392
 393         /* if ssid not set to hw don't check bssid
 394          * here just used for linked scanning, & linked
 395          * and nolink check bssid is set in set network_type */
 396         if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) &&
 397                 (mac->link_state >= MAC80211_LINKED)) {
 398                 if (mac->opmode != NL80211_IFTYPE_AP) {
 399                         if (*new_flags & FIF_BCN_PRBRESP_PROMISC) {
 400                                 rtlpriv->cfg->ops->set_chk_bssid(hw, false);
 401                         } else {
 402                                 rtlpriv->cfg->ops->set_chk_bssid(hw, true);
 403                         }
 404                 }
 405         }
 406
 407         if (changed_flags & FIF_CONTROL) {
 408                 if (*new_flags & FIF_CONTROL) {
 409                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
 410
 411                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 412                                  ("Enable receive control frame.\n"));
 413                 } else {
 414                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
 415                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 416                                  ("Disable receive control frame.\n"));
 417                 }
 418         }
 419
 420         if (changed_flags & FIF_OTHER_BSS) {
 421                 if (*new_flags & FIF_OTHER_BSS) {
 422                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
 423                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 424                                  ("Enable receive other BSS's frame.\n"));
 425                 } else {
 426                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
 427                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 428                                  ("Disable receive other BSS's frame.\n"));
 429                 }
 430         }
 431 }
 432 static int rtl_op_sta_add(struct ieee80211_hw *hw,
 433                          struct ieee80211_vif *vif,
 434                          struct ieee80211_sta *sta)
 435 {
 436         struct rtl_priv *rtlpriv = rtl_priv(hw);
 437         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 438         struct rtl_sta_info *sta_entry;
 439
 440         if (sta) {
 441                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 442                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 443                         sta_entry->wireless_mode = WIRELESS_MODE_G;
 444                         if (sta->supp_rates[0] <= 0xf)
 445                                 sta_entry->wireless_mode = WIRELESS_MODE_B;
 446                         if (sta->ht_cap.ht_supported)
 447                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 448                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 449                         sta_entry->wireless_mode = WIRELESS_MODE_A;
 450                         if (sta->ht_cap.ht_supported)
 451                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 452                 }
 453
 454                 /* I found some times mac80211 give wrong supp_rates for adhoc*/
 455                 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_ADHOC)
 456                         sta_entry->wireless_mode = WIRELESS_MODE_G;
 457
 458                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 459                         ("Add sta addr is %pM\n", sta->addr));
 460                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 461         }
 462         return 0;
 463 }
 464 static int rtl_op_sta_remove(struct ieee80211_hw *hw,
 465                                 struct ieee80211_vif *vif,
 466                                 struct ieee80211_sta *sta)
 467 {
 468         struct rtl_priv *rtlpriv = rtl_priv(hw);
 469         struct rtl_sta_info *sta_entry;
 470         if (sta) {
 471                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 472                         ("Remove sta addr is %pM\n", sta->addr));
 473                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 474                 sta_entry->wireless_mode = 0;
 475                 sta_entry->ratr_index = 0;
 476         }
 477         return 0;
 478 }
 479 static int _rtl_get_hal_qnum(u16 queue)
 480 {
 481         int qnum;
 482
 483         switch (queue) {
 484         case 0:
 485                 qnum = AC3_VO;
 486                 break;
 487         case 1:
 488                 qnum = AC2_VI;
 489                 break;
 490         case 2:
 491                 qnum = AC0_BE;
 492                 break;
 493         case 3:
 494                 qnum = AC1_BK;
 495                 break;
 496         default:
 497                 qnum = AC0_BE;
 498                 break;
 499         }
 500         return qnum;
 501 }
 502
 503 /*
 504  *for mac80211 VO=0, VI=1, BE=2, BK=3
 505  *for rtl819x  BE=0, BK=1, VI=2, VO=3
 506  */
 507 static int rtl_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
 508                    const struct ieee80211_tx_queue_params *param)
 509 {
 510         struct rtl_priv *rtlpriv = rtl_priv(hw);
 511         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 512         int aci;
 513
 514         if (queue >= AC_MAX) {
 515                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 516                          ("queue number %d is incorrect!\n", queue));
 517                 return -EINVAL;
 518         }
 519
 520         aci = _rtl_get_hal_qnum(queue);
 521         mac->ac[aci].aifs = param->aifs;
 522         mac->ac[aci].cw_min = cpu_to_le16(param->cw_min);
 523         mac->ac[aci].cw_max = cpu_to_le16(param->cw_max);
 524         mac->ac[aci].tx_op = cpu_to_le16(param->txop);
 525         memcpy(&mac->edca_param[aci], param, sizeof(*param));
 526         rtlpriv->cfg->ops->set_qos(hw, aci);
 527         return 0;
 528 }
 529
 530 static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 531                              struct ieee80211_vif *vif,
 532                              struct ieee80211_bss_conf *bss_conf, u32 changed)
 533 {
 534         struct rtl_priv *rtlpriv = rtl_priv(hw);
 535         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 536         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 537         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 538         struct ieee80211_sta *sta = NULL;
 539
 540         mutex_lock(&rtlpriv->locks.conf_mutex);
 541         if ((vif->type == NL80211_IFTYPE_ADHOC) ||
 542             (vif->type == NL80211_IFTYPE_AP) ||
 543             (vif->type == NL80211_IFTYPE_MESH_POINT)) {
 544                 if ((changed & BSS_CHANGED_BEACON) ||
 545                     (changed & BSS_CHANGED_BEACON_ENABLED &&
 546                      bss_conf->enable_beacon)) {
 547                         if (mac->beacon_enabled == 0) {
 548                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 549                                          ("BSS_CHANGED_BEACON_ENABLED\n"));
 550
 551                                 /*start hw beacon interrupt. */
 552                                 /*rtlpriv->cfg->ops->set_bcn_reg(hw); */
 553                                 mac->beacon_enabled = 1;
 554                                 rtlpriv->cfg->ops->update_interrupt_mask(hw,
 555                                                 rtlpriv->cfg->maps
 556                                                 [RTL_IBSS_INT_MASKS],
 557                                                 0);
 558
 559                                 if (rtlpriv->cfg->ops->linked_set_reg)
 560                                         rtlpriv->cfg->ops->linked_set_reg(hw);
 561                         }
 562                 }
 563                 if ((changed & BSS_CHANGED_BEACON_ENABLED &&
 564                         !bss_conf->enable_beacon)) {
 565                         if (mac->beacon_enabled == 1) {
 566                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 567                                          ("ADHOC DISABLE BEACON\n"));
 568
 569                                 mac->beacon_enabled = 0;
 570                                 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 571                                                 rtlpriv->cfg->maps
 572                                                 [RTL_IBSS_INT_MASKS]);
 573                         }
 574                 }
 575                 if (changed & BSS_CHANGED_BEACON_INT) {
 576                         RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE,
 577                                  ("BSS_CHANGED_BEACON_INT\n"));
 578                         mac->beacon_interval = bss_conf->beacon_int;
 579                         rtlpriv->cfg->ops->set_bcn_intv(hw);
 580                 }
 581         }
 582
 583         /*TODO: reference to enum ieee80211_bss_change */
 584         if (changed & BSS_CHANGED_ASSOC) {
 585                 if (bss_conf->assoc) {
 586                         /* we should reset all sec info & cam
 587                          * before set cam after linked, we should not
 588                          * reset in disassoc, that will cause tkip->wep
 589                          * fail because some flag will be wrong */
 590                         /* reset sec info */
 591                         rtl_cam_reset_sec_info(hw);
 592                         /* reset cam to fix wep fail issue
 593                          * when change from wpa to wep */
 594                         rtl_cam_reset_all_entry(hw);
 595
 596                         mac->link_state = MAC80211_LINKED;
 597                         mac->cnt_after_linked = 0;
 598                         mac->assoc_id = bss_conf->aid;
 599                         memcpy(mac->bssid, bss_conf->bssid, 6);
 600
 601                         if (rtlpriv->cfg->ops->linked_set_reg)
 602                                 rtlpriv->cfg->ops->linked_set_reg(hw);
 603                         if (mac->opmode == NL80211_IFTYPE_STATION && sta)
 604                                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 605                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 606                                  ("BSS_CHANGED_ASSOC\n"));
 607                 } else {
 608                         if (mac->link_state == MAC80211_LINKED)
 609                                 rtl_lps_leave(hw);
 610
 611                         mac->link_state = MAC80211_NOLINK;
 612                         memset(mac->bssid, 0, 6);
 613                         mac->vendor = PEER_UNKNOWN;
 614
 615                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 616                                  ("BSS_CHANGED_UN_ASSOC\n"));
 617                 }
 618         }
 619
 620         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 621                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 622                          ("BSS_CHANGED_ERP_CTS_PROT\n"));
 623                 mac->use_cts_protect = bss_conf->use_cts_prot;
 624         }
 625
 626         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 627                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 628                          ("BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
 629                           bss_conf->use_short_preamble));
 630
 631                 mac->short_preamble = bss_conf->use_short_preamble;
 632                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
 633                                               (u8 *) (&mac->short_preamble));
 634         }
 635
 636         if (changed & BSS_CHANGED_ERP_SLOT) {
 637                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 638                          ("BSS_CHANGED_ERP_SLOT\n"));
 639
 640                 if (bss_conf->use_short_slot)
 641                         mac->slot_time = RTL_SLOT_TIME_9;
 642                 else
 643                         mac->slot_time = RTL_SLOT_TIME_20;
 644
 645                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
 646                                               (u8 *) (&mac->slot_time));
 647         }
 648
 649         if (changed & BSS_CHANGED_HT) {
 650                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 651                          ("BSS_CHANGED_HT\n"));
 652                 rcu_read_lock();
 653                 sta = get_sta(hw, vif, bss_conf->bssid);
 654                 if (sta) {
 655                         if (sta->ht_cap.ampdu_density >
 656                             mac->current_ampdu_density)
 657                                 mac->current_ampdu_density =
 658                                     sta->ht_cap.ampdu_density;
 659                         if (sta->ht_cap.ampdu_factor <
 660                             mac->current_ampdu_factor)
 661                                 mac->current_ampdu_factor =
 662                                     sta->ht_cap.ampdu_factor;
 663                 }
 664                 rcu_read_unlock();
 665
 666                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
 667                                               (u8 *) (&mac->max_mss_density));
 668                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
 669                                               &mac->current_ampdu_factor);
 670                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
 671                                               &mac->current_ampdu_density);
 672         }
 673
 674         if (changed & BSS_CHANGED_BSSID) {
 675                 u32 basic_rates;
 676
 677                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
 678                                               (u8 *) bss_conf->bssid);
 679
 680                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 681                          ("%pM\n", bss_conf->bssid));
 682
 683                 mac->vendor = PEER_UNKNOWN;
 684                 memcpy(mac->bssid, bss_conf->bssid, 6);
 685                 rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 686
 687                 rcu_read_lock();
 688                 sta = get_sta(hw, vif, bss_conf->bssid);
 689                 if (!sta) {
 690                         rcu_read_unlock();
 691                         goto out;
 692                 }
 693
 694                 if (rtlhal->current_bandtype == BAND_ON_5G) {
 695                         mac->mode = WIRELESS_MODE_A;
 696                 } else {
 697                         if (sta->supp_rates[0] <= 0xf)
 698                                 mac->mode = WIRELESS_MODE_B;
 699                         else
 700                                 mac->mode = WIRELESS_MODE_G;
 701                 }
 702
 703                 if (sta->ht_cap.ht_supported) {
 704                         if (rtlhal->current_bandtype == BAND_ON_2_4G)
 705                                 mac->mode = WIRELESS_MODE_N_24G;
 706                         else
 707                                 mac->mode = WIRELESS_MODE_N_5G;
 708                 }
 709
 710                 /* just station need it, because ibss & ap mode will
 711                  * set in sta_add, and will be NULL here */
 712                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 713                         struct rtl_sta_info *sta_entry;
 714                         sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 715                         sta_entry->wireless_mode = mac->mode;
 716                 }
 717
 718                 if (sta->ht_cap.ht_supported) {
 719                         mac->ht_enable = true;
 720
 721                         /*
 722                          * for cisco 1252 bw20 it's wrong
 723                          * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
 724                          *      mac->bw_40 = true;
 725                          * }
 726                          * */
 727                 }
 728
 729                 if (changed & BSS_CHANGED_BASIC_RATES) {
 730                         /* for 5G must << RATE_6M_INDEX=4,
 731                          * because 5G have no cck rate*/
 732                         if (rtlhal->current_bandtype == BAND_ON_5G)
 733                                 basic_rates = sta->supp_rates[1] << 4;
 734                         else
 735                                 basic_rates = sta->supp_rates[0];
 736
 737                         mac->basic_rates = basic_rates;
 738                         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 739                                         (u8 *) (&basic_rates));
 740                 }
 741                 rcu_read_unlock();
 742         }
 743
 744         /*
 745          * For FW LPS:
 746          * To tell firmware we have connected
 747          * to an AP. For 92SE/CE power save v2.
 748          */
 749         if (changed & BSS_CHANGED_ASSOC) {
 750                 if (bss_conf->assoc) {
 751                         if (ppsc->fwctrl_lps) {
 752                                 u8 mstatus = RT_MEDIA_CONNECT;
 753                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 754                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 755                                                       (u8 *) (&mstatus));
 756                                 ppsc->report_linked = true;
 757                         }
 758                 } else {
 759                         if (ppsc->fwctrl_lps) {
 760                                 u8 mstatus = RT_MEDIA_DISCONNECT;
 761                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 762                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 763                                                       (u8 *)(&mstatus));
 764                                 ppsc->report_linked = false;
 765                         }
 766                 }
 767         }
 768
 769 out:
 770         mutex_unlock(&rtlpriv->locks.conf_mutex);
 771 }
 772
 773 static u64 rtl_op_get_tsf(struct ieee80211_hw *hw)
 774 {
 775         struct rtl_priv *rtlpriv = rtl_priv(hw);
 776         u64 tsf;
 777
 778         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&tsf));
 779         return tsf;
 780 }
 781
 782 static void rtl_op_set_tsf(struct ieee80211_hw *hw, u64 tsf)
 783 {
 784         struct rtl_priv *rtlpriv = rtl_priv(hw);
 785         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 786         u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
 787
 788         mac->tsf = tsf;
 789         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&bibss));
 790 }
 791
 792 static void rtl_op_reset_tsf(struct ieee80211_hw *hw)
 793 {
 794         struct rtl_priv *rtlpriv = rtl_priv(hw);
 795         u8 tmp = 0;
 796
 797         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, (u8 *) (&tmp));
 798 }
 799
 800 static void rtl_op_sta_notify(struct ieee80211_hw *hw,
 801                               struct ieee80211_vif *vif,
 802                               enum sta_notify_cmd cmd,
 803                               struct ieee80211_sta *sta)
 804 {
 805         switch (cmd) {
 806         case STA_NOTIFY_SLEEP:
 807                 break;
 808         case STA_NOTIFY_AWAKE:
 809                 break;
 810         default:
 811                 break;
 812         }
 813 }
 814
 815 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
 816                                struct ieee80211_vif *vif,
 817                                enum ieee80211_ampdu_mlme_action action,
 818                                struct ieee80211_sta *sta, u16 tid, u16 *ssn,
 819                                u8 buf_size)
 820 {
 821         struct rtl_priv *rtlpriv = rtl_priv(hw);
 822
 823         switch (action) {
 824         case IEEE80211_AMPDU_TX_START:
 825                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 826                          ("IEEE80211_AMPDU_TX_START: TID:%d\n", tid));
 827                 return rtl_tx_agg_start(hw, sta, tid, ssn);
 828                 break;
 829         case IEEE80211_AMPDU_TX_STOP:
 830                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 831                          ("IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid));
 832                 return rtl_tx_agg_stop(hw, sta, tid);
 833                 break;
 834         case IEEE80211_AMPDU_TX_OPERATIONAL:
 835                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 836                          ("IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid));
 837                 rtl_tx_agg_oper(hw, sta, tid);
 838                 break;
 839         case IEEE80211_AMPDU_RX_START:
 840                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 841                          ("IEEE80211_AMPDU_RX_START:TID:%d\n", tid));
 842                 break;
 843         case IEEE80211_AMPDU_RX_STOP:
 844                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 845                          ("IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid));
 846                 break;
 847         default:
 848                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 849                          ("IEEE80211_AMPDU_ERR!!!!:\n"));
 850                 return -EOPNOTSUPP;
 851         }
 852         return 0;
 853 }
 854
 855 static void rtl_op_sw_scan_start(struct ieee80211_hw *hw)
 856 {
 857         struct rtl_priv *rtlpriv = rtl_priv(hw);
 858         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 859
 860         mac->act_scanning = true;
 861
 862         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
 863
 864         if (mac->link_state == MAC80211_LINKED) {
 865                 rtl_lps_leave(hw);
 866                 mac->link_state = MAC80211_LINKED_SCANNING;
 867         } else {
 868                 rtl_ips_nic_on(hw);
 869         }
 870
 871         /* Dual mac */
 872         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
 873
 874         rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
 875         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP);
 876 }
 877
 878 static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw)
 879 {
 880         struct rtl_priv *rtlpriv = rtl_priv(hw);
 881         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 882
 883         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
 884         mac->act_scanning = false;
 885         /* Dual mac */
 886         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
 887
 888         if (mac->link_state == MAC80211_LINKED_SCANNING) {
 889                 mac->link_state = MAC80211_LINKED;
 890                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 891                         /* fix fwlps issue */
 892                         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
 893                 }
 894         }
 895
 896         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
 897 }
 898
 899 static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 900                           struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 901                           struct ieee80211_key_conf *key)
 902 {
 903         struct rtl_priv *rtlpriv = rtl_priv(hw);
 904         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 905         u8 key_type = NO_ENCRYPTION;
 906         u8 key_idx;
 907         bool group_key = false;
 908         bool wep_only = false;
 909         int err = 0;
 910         u8 mac_addr[ETH_ALEN];
 911         u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 912         u8 zero_addr[ETH_ALEN] = { 0 };
 913
 914         if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
 915                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 916                          ("not open hw encryption\n"));
 917                 return -ENOSPC; /*User disabled HW-crypto */
 918         }
 919         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 920                  ("%s hardware based encryption for keyidx: %d, mac: %pM\n",
 921                   cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
 922                   sta ? sta->addr : bcast_addr));
 923         rtlpriv->sec.being_setkey = true;
 924         rtl_ips_nic_on(hw);
 925         mutex_lock(&rtlpriv->locks.conf_mutex);
 926         /* <1> get encryption alg */
 927
 928         switch (key->cipher) {
 929         case WLAN_CIPHER_SUITE_WEP40:
 930                 key_type = WEP40_ENCRYPTION;
 931                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:WEP40\n"));
 932                 break;
 933         case WLAN_CIPHER_SUITE_WEP104:
 934                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 935                          ("alg:WEP104\n"));
 936                 key_type = WEP104_ENCRYPTION;
 937                 break;
 938         case WLAN_CIPHER_SUITE_TKIP:
 939                 key_type = TKIP_ENCRYPTION;
 940                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:TKIP\n"));
 941                 break;
 942         case WLAN_CIPHER_SUITE_CCMP:
 943                 key_type = AESCCMP_ENCRYPTION;
 944                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:CCMP\n"));
 945                 break;
 946         default:
 947                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 948                          ("alg_err:%x!!!!:\n", key->cipher));
 949                 goto out_unlock;
 950         }
 951         if (key_type == WEP40_ENCRYPTION ||
 952                         key_type == WEP104_ENCRYPTION ||
 953                         mac->opmode == NL80211_IFTYPE_ADHOC)
 954                 rtlpriv->sec.use_defaultkey = true;
 955
 956         /* <2> get key_idx */
 957         key_idx = (u8) (key->keyidx);
 958         if (key_idx > 3)
 959                 goto out_unlock;
 960         /* <3> if pairwise key enable_hw_sec */
 961         group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
 962
 963         /* wep always be group key, but there are two conditions:
 964          * 1) wep only: is just for wep enc, in this condition
 965          * rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION
 966          * will be true & enable_hw_sec will be set when wep
 967          * ke setting.
 968          * 2) wep(group) + AES(pairwise): some AP like cisco
 969          * may use it, in this condition enable_hw_sec will not
 970          * be set when wep key setting */
 971         /* we must reset sec_info after lingked before set key,
 972          * or some flag will be wrong*/
 973         if (mac->opmode == NL80211_IFTYPE_AP) {
 974                 if (!group_key || key_type == WEP40_ENCRYPTION ||
 975                         key_type == WEP104_ENCRYPTION) {
 976                         if (group_key)
 977                                 wep_only = true;
 978                         rtlpriv->cfg->ops->enable_hw_sec(hw);
 979                 }
 980         } else {
 981                 if ((!group_key) || (mac->opmode == NL80211_IFTYPE_ADHOC) ||
 982                      rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
 983                         if (rtlpriv->sec.pairwise_enc_algorithm ==
 984                             NO_ENCRYPTION &&
 985                             (key_type == WEP40_ENCRYPTION ||
 986                             key_type == WEP104_ENCRYPTION))
 987                                 wep_only = true;
 988                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
 989                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 990                                 ("set enable_hw_sec, key_type:%x(OPEN:0 WEP40:1"
 991                                 " TKIP:2 AES:4 WEP104:5)\n", key_type));
 992                         rtlpriv->cfg->ops->enable_hw_sec(hw);
 993                 }
 994         }
 995         /* <4> set key based on cmd */
 996         switch (cmd) {
 997         case SET_KEY:
 998                 if (wep_only) {
 999                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1000                                  ("set WEP(group/pairwise) key\n"));
1001                         /* Pairwise key with an assigned MAC address. */
1002                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1003                         rtlpriv->sec.group_enc_algorithm = key_type;
1004                         /*set local buf about wep key. */
1005                         memcpy(rtlpriv->sec.key_buf[key_idx],
1006                                key->key, key->keylen);
1007                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1008                         memcpy(mac_addr, zero_addr, ETH_ALEN);
1009                 } else if (group_key) { /* group key */
1010                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1011                                  ("set group key\n"));
1012                         /* group key */
1013                         rtlpriv->sec.group_enc_algorithm = key_type;
1014                         /*set local buf about group key. */
1015                         memcpy(rtlpriv->sec.key_buf[key_idx],
1016                                key->key, key->keylen);
1017                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1018                         memcpy(mac_addr, bcast_addr, ETH_ALEN);
1019                 } else {        /* pairwise key */
1020                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1021                                  ("set pairwise key\n"));
1022                         if (!sta) {
1023                                 RT_ASSERT(false, ("pairwise key withnot"
1024                                                   "mac_addr\n"));
1025
1026                                 err = -EOPNOTSUPP;
1027                                 goto out_unlock;
1028                         }
1029                         /* Pairwise key with an assigned MAC address. */
1030                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1031                         /*set local buf about pairwise key. */
1032                         memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
1033                                key->key, key->keylen);
1034                         rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
1035                         rtlpriv->sec.pairwise_key =
1036                             rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
1037                         memcpy(mac_addr, sta->addr, ETH_ALEN);
1038                 }
1039                 rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
1040                                            group_key, key_type, wep_only,
1041                                            false);
1042                 /* <5> tell mac80211 do something: */
1043                 /*must use sw generate IV, or can not work !!!!. */
1044                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1045                 key->hw_key_idx = key_idx;
1046                 if (key_type == TKIP_ENCRYPTION)
1047                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1048                 break;
1049         case DISABLE_KEY:
1050                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1051                          ("disable key delete one entry\n"));
1052                 /*set local buf about wep key. */
1053                 if (mac->opmode == NL80211_IFTYPE_AP) {
1054                         if (sta)
1055                                 rtl_cam_del_entry(hw, sta->addr);
1056                 }
1057                 memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
1058                 rtlpriv->sec.key_len[key_idx] = 0;
1059                 memcpy(mac_addr, zero_addr, ETH_ALEN);
1060                 /*
1061                  *mac80211 will delete entrys one by one,
1062                  *so don't use rtl_cam_reset_all_entry
1063                  *or clear all entry here.
1064                  */
1065                 rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
1066                 break;
1067         default:
1068                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1069                          ("cmd_err:%x!!!!:\n", cmd));
1070         }
1071 out_unlock:
1072         mutex_unlock(&rtlpriv->locks.conf_mutex);
1073         rtlpriv->sec.being_setkey = false;
1074         return err;
1075 }
1076
1077 static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
1078 {
1079         struct rtl_priv *rtlpriv = rtl_priv(hw);
1080
1081         bool radio_state;
1082         bool blocked;
1083         u8 valid = 0;
1084
1085         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1086                 return;
1087
1088         mutex_lock(&rtlpriv->locks.conf_mutex);
1089
1090         /*if Radio On return true here */
1091         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
1092
1093         if (valid) {
1094                 if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
1095                         rtlpriv->rfkill.rfkill_state = radio_state;
1096
1097                         RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
1098                                  (KERN_INFO "wireless radio switch turned %s\n",
1099                                   radio_state ? "on" : "off"));
1100
1101                         blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
1102                         wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
1103                 }
1104         }
1105
1106         mutex_unlock(&rtlpriv->locks.conf_mutex);
1107 }
1108
1109 /* this function is called by mac80211 to flush tx buffer
1110  * before switch channle or power save, or tx buffer packet
1111  * maybe send after offchannel or rf sleep, this may cause
1112  * dis-association by AP */
1113 static void rtl_op_flush(struct ieee80211_hw *hw, bool drop)
1114 {
1115         struct rtl_priv *rtlpriv = rtl_priv(hw);
1116
1117         if (rtlpriv->intf_ops->flush)
1118                 rtlpriv->intf_ops->flush(hw, drop);
1119 }
1120
1121 const struct ieee80211_ops rtl_ops = {
1122         .start = rtl_op_start,
1123         .stop = rtl_op_stop,
1124         .tx = rtl_op_tx,
1125         .add_interface = rtl_op_add_interface,
1126         .remove_interface = rtl_op_remove_interface,
1127         .config = rtl_op_config,
1128         .configure_filter = rtl_op_configure_filter,
1129         .sta_add = rtl_op_sta_add,
1130         .sta_remove = rtl_op_sta_remove,
1131         .set_key = rtl_op_set_key,
1132         .conf_tx = rtl_op_conf_tx,
1133         .bss_info_changed = rtl_op_bss_info_changed,
1134         .get_tsf = rtl_op_get_tsf,
1135         .set_tsf = rtl_op_set_tsf,
1136         .reset_tsf = rtl_op_reset_tsf,
1137         .sta_notify = rtl_op_sta_notify,
1138         .ampdu_action = rtl_op_ampdu_action,
1139         .sw_scan_start = rtl_op_sw_scan_start,
1140         .sw_scan_complete = rtl_op_sw_scan_complete,
1141         .rfkill_poll = rtl_op_rfkill_poll,
1142         .flush = rtl_op_flush,
1143 };