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                 mac->link_state = MAC80211_LINKED;
 135                 break;
 136         case NL80211_IFTYPE_ADHOC:
 137                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 138                          ("NL80211_IFTYPE_ADHOC\n"));
 139
 140                 mac->link_state = MAC80211_LINKED;
 141                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 142                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 143                         mac->basic_rates = 0xfff;
 144                 else
 145                         mac->basic_rates = 0xff0;
 146                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 147                                 (u8 *) (&mac->basic_rates));
 148
 149                 break;
 150         case NL80211_IFTYPE_AP:
 151                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 152                          ("NL80211_IFTYPE_AP\n"));
 153
 154                 mac->link_state = MAC80211_LINKED;
 155                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 156                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 157                         mac->basic_rates = 0xfff;
 158                 else
 159                         mac->basic_rates = 0xff0;
 160                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 161                                 (u8 *) (&mac->basic_rates));
 162                 break;
 163         default:
 164                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 165                          ("operation mode %d is not support!\n", vif->type));
 166                 err = -EOPNOTSUPP;
 167                 goto out;
 168         }
 169
 170         mac->vif = vif;
 171         mac->opmode = vif->type;
 172         rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 173         memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
 174         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
 175
 176 out:
 177         mutex_unlock(&rtlpriv->locks.conf_mutex);
 178         return err;
 179 }
 180
 181 static void rtl_op_remove_interface(struct ieee80211_hw *hw,
 182                 struct ieee80211_vif *vif)
 183 {
 184         struct rtl_priv *rtlpriv = rtl_priv(hw);
 185         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 186
 187         mutex_lock(&rtlpriv->locks.conf_mutex);
 188
 189         /* Free beacon resources */
 190         if ((mac->opmode == NL80211_IFTYPE_AP) ||
 191             (mac->opmode == NL80211_IFTYPE_ADHOC) ||
 192             (mac->opmode == NL80211_IFTYPE_MESH_POINT)) {
 193                 if (mac->beacon_enabled == 1) {
 194                         mac->beacon_enabled = 0;
 195                         rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 196                                         rtlpriv->cfg->maps
 197                                         [RTL_IBSS_INT_MASKS]);
 198                 }
 199         }
 200
 201         /*
 202          *Note: We assume NL80211_IFTYPE_UNSPECIFIED as
 203          *NO LINK for our hardware.
 204          */
 205         mac->vif = NULL;
 206         mac->link_state = MAC80211_NOLINK;
 207         memset(mac->bssid, 0, 6);
 208         mac->vendor = PEER_UNKNOWN;
 209         mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
 210         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
 211         mutex_unlock(&rtlpriv->locks.conf_mutex);
 212 }
 213
 214 static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
 215 {
 216         struct rtl_priv *rtlpriv = rtl_priv(hw);
 217         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 218         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 219         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 220         struct ieee80211_conf *conf = &hw->conf;
 221
 222         mutex_lock(&rtlpriv->locks.conf_mutex);
 223         if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {  /*BIT(2)*/
 224                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 225                          ("IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n"));
 226         }
 227
 228         /*For IPS */
 229         if (changed & IEEE80211_CONF_CHANGE_IDLE) {
 230                 if (hw->conf.flags & IEEE80211_CONF_IDLE)
 231                         rtl_ips_nic_off(hw);
 232                 else
 233                         rtl_ips_nic_on(hw);
 234         } else {
 235                 /*
 236                  *although rfoff may not cause by ips, but we will
 237                  *check the reason in set_rf_power_state function
 238                  */
 239                 if (unlikely(ppsc->rfpwr_state == ERFOFF))
 240                         rtl_ips_nic_on(hw);
 241         }
 242
 243         /*For LPS */
 244         if (changed & IEEE80211_CONF_CHANGE_PS) {
 245                 cancel_delayed_work(&rtlpriv->works.ps_work);
 246                 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 247                 if (conf->flags & IEEE80211_CONF_PS) {
 248                         rtlpriv->psc.sw_ps_enabled = true;
 249                         /* sleep here is must, or we may recv the beacon and
 250                          * cause mac80211 into wrong ps state, this will cause
 251                          * power save nullfunc send fail, and further cause
 252                          * pkt loss, So sleep must quickly but not immediatly
 253                          * because that will cause nullfunc send by mac80211
 254                          * fail, and cause pkt loss, we have tested that 5mA
 255                          * is worked very well */
 256                         if (!rtlpriv->psc.multi_buffered)
 257                                 queue_delayed_work(rtlpriv->works.rtl_wq,
 258                                                 &rtlpriv->works.ps_work,
 259                                                 MSECS(5));
 260                 } else {
 261                         rtl_swlps_rf_awake(hw);
 262                         rtlpriv->psc.sw_ps_enabled = false;
 263                 }
 264         }
 265
 266         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
 267                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 268                          ("IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
 269                           hw->conf.long_frame_max_tx_count));
 270                 mac->retry_long = hw->conf.long_frame_max_tx_count;
 271                 mac->retry_short = hw->conf.long_frame_max_tx_count;
 272                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
 273                                               (u8 *) (&hw->conf.
 274                                                       long_frame_max_tx_count));
 275         }
 276
 277         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 278                 struct ieee80211_channel *channel = hw->conf.channel;
 279                 u8 wide_chan = (u8) channel->hw_value;
 280
 281                 /*
 282                  *because we should back channel to
 283                  *current_network.chan in in scanning,
 284                  *So if set_chan == current_network.chan
 285                  *we should set it.
 286                  *because mac80211 tell us wrong bw40
 287                  *info for cisco1253 bw20, so we modify
 288                  *it here based on UPPER & LOWER
 289                  */
 290                 switch (hw->conf.channel_type) {
 291                 case NL80211_CHAN_HT20:
 292                 case NL80211_CHAN_NO_HT:
 293                         /* SC */
 294                         mac->cur_40_prime_sc =
 295                                 PRIME_CHNL_OFFSET_DONT_CARE;
 296                         rtlphy->current_chan_bw = HT_CHANNEL_WIDTH_20;
 297                         mac->bw_40 = false;
 298                         break;
 299                 case NL80211_CHAN_HT40MINUS:
 300                         /* SC */
 301                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_UPPER;
 302                         rtlphy->current_chan_bw =
 303                                 HT_CHANNEL_WIDTH_20_40;
 304                         mac->bw_40 = true;
 305
 306                         /*wide channel */
 307                         wide_chan -= 2;
 308
 309                         break;
 310                 case NL80211_CHAN_HT40PLUS:
 311                         /* SC */
 312                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_LOWER;
 313                         rtlphy->current_chan_bw =
 314                                 HT_CHANNEL_WIDTH_20_40;
 315                         mac->bw_40 = true;
 316
 317                         /*wide channel */
 318                         wide_chan += 2;
 319
 320                         break;
 321                 default:
 322                         mac->bw_40 = false;
 323                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 324                                         ("switch case not processed\n"));
 325                         break;
 326                 }
 327
 328                 if (wide_chan <= 0)
 329                         wide_chan = 1;
 330
 331                 /* In scanning, before we go offchannel we may send a ps=1 null
 332                  * to AP, and then we may send a ps = 0 null to AP quickly, but
 333                  * first null may have caused AP to put lots of packet to hw tx
 334                  * buffer. These packets must be tx'd before we go off channel
 335                  * so we must delay more time to let AP flush these packets
 336                  * before going offchannel, or dis-association or delete BA will
 337                  * happen by AP
 338                  */
 339                 if (rtlpriv->mac80211.offchan_delay) {
 340                         rtlpriv->mac80211.offchan_delay = false;
 341                         mdelay(50);
 342                 }
 343                 rtlphy->current_channel = wide_chan;
 344
 345                 rtlpriv->cfg->ops->switch_channel(hw);
 346                 rtlpriv->cfg->ops->set_channel_access(hw);
 347                 rtlpriv->cfg->ops->set_bw_mode(hw,
 348                                                hw->conf.channel_type);
 349         }
 350
 351         mutex_unlock(&rtlpriv->locks.conf_mutex);
 352
 353         return 0;
 354 }
 355
 356 static void rtl_op_configure_filter(struct ieee80211_hw *hw,
 357                              unsigned int changed_flags,
 358                              unsigned int *new_flags, u64 multicast)
 359 {
 360         struct rtl_priv *rtlpriv = rtl_priv(hw);
 361         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 362
 363         *new_flags &= RTL_SUPPORTED_FILTERS;
 364         if (!changed_flags)
 365                 return;
 366
 367         /*TODO: we disable broadcase now, so enable here */
 368         if (changed_flags & FIF_ALLMULTI) {
 369                 if (*new_flags & FIF_ALLMULTI) {
 370                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
 371                             rtlpriv->cfg->maps[MAC_RCR_AB];
 372                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 373                                  ("Enable receive multicast frame.\n"));
 374                 } else {
 375                         mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
 376                                           rtlpriv->cfg->maps[MAC_RCR_AB]);
 377                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 378                                  ("Disable receive multicast frame.\n"));
 379                 }
 380         }
 381
 382         if (changed_flags & FIF_FCSFAIL) {
 383                 if (*new_flags & FIF_FCSFAIL) {
 384                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 385                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 386                                  ("Enable receive FCS error frame.\n"));
 387                 } else {
 388                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 389                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 390                                  ("Disable receive FCS error frame.\n"));
 391                 }
 392         }
 393
 394         /* if ssid not set to hw don't check bssid
 395          * here just used for linked scanning, & linked
 396          * and nolink check bssid is set in set network_type */
 397         if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) &&
 398                 (mac->link_state >= MAC80211_LINKED)) {
 399                 if (mac->opmode != NL80211_IFTYPE_AP) {
 400                         if (*new_flags & FIF_BCN_PRBRESP_PROMISC) {
 401                                 rtlpriv->cfg->ops->set_chk_bssid(hw, false);
 402                         } else {
 403                                 rtlpriv->cfg->ops->set_chk_bssid(hw, true);
 404                         }
 405                 }
 406         }
 407
 408         if (changed_flags & FIF_CONTROL) {
 409                 if (*new_flags & FIF_CONTROL) {
 410                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
 411
 412                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 413                                  ("Enable receive control frame.\n"));
 414                 } else {
 415                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
 416                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 417                                  ("Disable receive control frame.\n"));
 418                 }
 419         }
 420
 421         if (changed_flags & FIF_OTHER_BSS) {
 422                 if (*new_flags & FIF_OTHER_BSS) {
 423                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
 424                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 425                                  ("Enable receive other BSS's frame.\n"));
 426                 } else {
 427                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
 428                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 429                                  ("Disable receive other BSS's frame.\n"));
 430                 }
 431         }
 432 }
 433 static int rtl_op_sta_add(struct ieee80211_hw *hw,
 434                          struct ieee80211_vif *vif,
 435                          struct ieee80211_sta *sta)
 436 {
 437         struct rtl_priv *rtlpriv = rtl_priv(hw);
 438         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 439         struct rtl_sta_info *sta_entry;
 440
 441         if (sta) {
 442                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 443                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 444                         sta_entry->wireless_mode = WIRELESS_MODE_G;
 445                         if (sta->supp_rates[0] <= 0xf)
 446                                 sta_entry->wireless_mode = WIRELESS_MODE_B;
 447                         if (sta->ht_cap.ht_supported)
 448                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 449                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 450                         sta_entry->wireless_mode = WIRELESS_MODE_A;
 451                         if (sta->ht_cap.ht_supported)
 452                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 453                 }
 454
 455                 /* I found some times mac80211 give wrong supp_rates for adhoc*/
 456                 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_ADHOC)
 457                         sta_entry->wireless_mode = WIRELESS_MODE_G;
 458
 459                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 460                         ("Add sta addr is %pM\n", sta->addr));
 461                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 462         }
 463         return 0;
 464 }
 465 static int rtl_op_sta_remove(struct ieee80211_hw *hw,
 466                                 struct ieee80211_vif *vif,
 467                                 struct ieee80211_sta *sta)
 468 {
 469         struct rtl_priv *rtlpriv = rtl_priv(hw);
 470         struct rtl_sta_info *sta_entry;
 471         if (sta) {
 472                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 473                         ("Remove sta addr is %pM\n", sta->addr));
 474                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 475                 sta_entry->wireless_mode = 0;
 476                 sta_entry->ratr_index = 0;
 477         }
 478         return 0;
 479 }
 480 static int _rtl_get_hal_qnum(u16 queue)
 481 {
 482         int qnum;
 483
 484         switch (queue) {
 485         case 0:
 486                 qnum = AC3_VO;
 487                 break;
 488         case 1:
 489                 qnum = AC2_VI;
 490                 break;
 491         case 2:
 492                 qnum = AC0_BE;
 493                 break;
 494         case 3:
 495                 qnum = AC1_BK;
 496                 break;
 497         default:
 498                 qnum = AC0_BE;
 499                 break;
 500         }
 501         return qnum;
 502 }
 503
 504 /*
 505  *for mac80211 VO=0, VI=1, BE=2, BK=3
 506  *for rtl819x  BE=0, BK=1, VI=2, VO=3
 507  */
 508 static int rtl_op_conf_tx(struct ieee80211_hw *hw,
 509                    struct ieee80211_vif *vif, u16 queue,
 510                    const struct ieee80211_tx_queue_params *param)
 511 {
 512         struct rtl_priv *rtlpriv = rtl_priv(hw);
 513         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 514         int aci;
 515
 516         if (queue >= AC_MAX) {
 517                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 518                          ("queue number %d is incorrect!\n", queue));
 519                 return -EINVAL;
 520         }
 521
 522         aci = _rtl_get_hal_qnum(queue);
 523         mac->ac[aci].aifs = param->aifs;
 524         mac->ac[aci].cw_min = cpu_to_le16(param->cw_min);
 525         mac->ac[aci].cw_max = cpu_to_le16(param->cw_max);
 526         mac->ac[aci].tx_op = cpu_to_le16(param->txop);
 527         memcpy(&mac->edca_param[aci], param, sizeof(*param));
 528         rtlpriv->cfg->ops->set_qos(hw, aci);
 529         return 0;
 530 }
 531
 532 static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 533                              struct ieee80211_vif *vif,
 534                              struct ieee80211_bss_conf *bss_conf, u32 changed)
 535 {
 536         struct rtl_priv *rtlpriv = rtl_priv(hw);
 537         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 538         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 539         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 540         struct ieee80211_sta *sta = NULL;
 541
 542         mutex_lock(&rtlpriv->locks.conf_mutex);
 543         if ((vif->type == NL80211_IFTYPE_ADHOC) ||
 544             (vif->type == NL80211_IFTYPE_AP) ||
 545             (vif->type == NL80211_IFTYPE_MESH_POINT)) {
 546                 if ((changed & BSS_CHANGED_BEACON) ||
 547                     (changed & BSS_CHANGED_BEACON_ENABLED &&
 548                      bss_conf->enable_beacon)) {
 549                         if (mac->beacon_enabled == 0) {
 550                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 551                                          ("BSS_CHANGED_BEACON_ENABLED\n"));
 552
 553                                 /*start hw beacon interrupt. */
 554                                 /*rtlpriv->cfg->ops->set_bcn_reg(hw); */
 555                                 mac->beacon_enabled = 1;
 556                                 rtlpriv->cfg->ops->update_interrupt_mask(hw,
 557                                                 rtlpriv->cfg->maps
 558                                                 [RTL_IBSS_INT_MASKS],
 559                                                 0);
 560
 561                                 if (rtlpriv->cfg->ops->linked_set_reg)
 562                                         rtlpriv->cfg->ops->linked_set_reg(hw);
 563                         }
 564                 }
 565                 if ((changed & BSS_CHANGED_BEACON_ENABLED &&
 566                         !bss_conf->enable_beacon)) {
 567                         if (mac->beacon_enabled == 1) {
 568                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 569                                          ("ADHOC DISABLE BEACON\n"));
 570
 571                                 mac->beacon_enabled = 0;
 572                                 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 573                                                 rtlpriv->cfg->maps
 574                                                 [RTL_IBSS_INT_MASKS]);
 575                         }
 576                 }
 577                 if (changed & BSS_CHANGED_BEACON_INT) {
 578                         RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE,
 579                                  ("BSS_CHANGED_BEACON_INT\n"));
 580                         mac->beacon_interval = bss_conf->beacon_int;
 581                         rtlpriv->cfg->ops->set_bcn_intv(hw);
 582                 }
 583         }
 584
 585         /*TODO: reference to enum ieee80211_bss_change */
 586         if (changed & BSS_CHANGED_ASSOC) {
 587                 if (bss_conf->assoc) {
 588                         /* we should reset all sec info & cam
 589                          * before set cam after linked, we should not
 590                          * reset in disassoc, that will cause tkip->wep
 591                          * fail because some flag will be wrong */
 592                         /* reset sec info */
 593                         rtl_cam_reset_sec_info(hw);
 594                         /* reset cam to fix wep fail issue
 595                          * when change from wpa to wep */
 596                         rtl_cam_reset_all_entry(hw);
 597
 598                         mac->link_state = MAC80211_LINKED;
 599                         mac->cnt_after_linked = 0;
 600                         mac->assoc_id = bss_conf->aid;
 601                         memcpy(mac->bssid, bss_conf->bssid, 6);
 602
 603                         if (rtlpriv->cfg->ops->linked_set_reg)
 604                                 rtlpriv->cfg->ops->linked_set_reg(hw);
 605                         if (mac->opmode == NL80211_IFTYPE_STATION && sta)
 606                                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 607                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 608                                  ("BSS_CHANGED_ASSOC\n"));
 609                 } else {
 610                         if (mac->link_state == MAC80211_LINKED)
 611                                 rtl_lps_leave(hw);
 612
 613                         mac->link_state = MAC80211_NOLINK;
 614                         memset(mac->bssid, 0, 6);
 615
 616                         /* reset sec info */
 617                         rtl_cam_reset_sec_info(hw);
 618
 619                         rtl_cam_reset_all_entry(hw);
 620                         mac->vendor = PEER_UNKNOWN;
 621
 622                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 623                                  ("BSS_CHANGED_UN_ASSOC\n"));
 624                 }
 625         }
 626
 627         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 628                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 629                          ("BSS_CHANGED_ERP_CTS_PROT\n"));
 630                 mac->use_cts_protect = bss_conf->use_cts_prot;
 631         }
 632
 633         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 634                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 635                          ("BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
 636                           bss_conf->use_short_preamble));
 637
 638                 mac->short_preamble = bss_conf->use_short_preamble;
 639                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
 640                                               (u8 *) (&mac->short_preamble));
 641         }
 642
 643         if (changed & BSS_CHANGED_ERP_SLOT) {
 644                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 645                          ("BSS_CHANGED_ERP_SLOT\n"));
 646
 647                 if (bss_conf->use_short_slot)
 648                         mac->slot_time = RTL_SLOT_TIME_9;
 649                 else
 650                         mac->slot_time = RTL_SLOT_TIME_20;
 651
 652                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
 653                                               (u8 *) (&mac->slot_time));
 654         }
 655
 656         if (changed & BSS_CHANGED_HT) {
 657                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 658                          ("BSS_CHANGED_HT\n"));
 659                 rcu_read_lock();
 660                 sta = get_sta(hw, vif, bss_conf->bssid);
 661                 if (sta) {
 662                         if (sta->ht_cap.ampdu_density >
 663                             mac->current_ampdu_density)
 664                                 mac->current_ampdu_density =
 665                                     sta->ht_cap.ampdu_density;
 666                         if (sta->ht_cap.ampdu_factor <
 667                             mac->current_ampdu_factor)
 668                                 mac->current_ampdu_factor =
 669                                     sta->ht_cap.ampdu_factor;
 670                 }
 671                 rcu_read_unlock();
 672
 673                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
 674                                               (u8 *) (&mac->max_mss_density));
 675                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
 676                                               &mac->current_ampdu_factor);
 677                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
 678                                               &mac->current_ampdu_density);
 679         }
 680
 681         if (changed & BSS_CHANGED_BSSID) {
 682                 u32 basic_rates;
 683
 684                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
 685                                               (u8 *) bss_conf->bssid);
 686
 687                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 688                          ("%pM\n", bss_conf->bssid));
 689
 690                 mac->vendor = PEER_UNKNOWN;
 691                 memcpy(mac->bssid, bss_conf->bssid, 6);
 692                 rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 693
 694                 rcu_read_lock();
 695                 sta = get_sta(hw, vif, bss_conf->bssid);
 696                 if (!sta) {
 697                         rcu_read_unlock();
 698                         goto out;
 699                 }
 700
 701                 if (rtlhal->current_bandtype == BAND_ON_5G) {
 702                         mac->mode = WIRELESS_MODE_A;
 703                 } else {
 704                         if (sta->supp_rates[0] <= 0xf)
 705                                 mac->mode = WIRELESS_MODE_B;
 706                         else
 707                                 mac->mode = WIRELESS_MODE_G;
 708                 }
 709
 710                 if (sta->ht_cap.ht_supported) {
 711                         if (rtlhal->current_bandtype == BAND_ON_2_4G)
 712                                 mac->mode = WIRELESS_MODE_N_24G;
 713                         else
 714                                 mac->mode = WIRELESS_MODE_N_5G;
 715                 }
 716
 717                 /* just station need it, because ibss & ap mode will
 718                  * set in sta_add, and will be NULL here */
 719                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 720                         struct rtl_sta_info *sta_entry;
 721                         sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 722                         sta_entry->wireless_mode = mac->mode;
 723                 }
 724
 725                 if (sta->ht_cap.ht_supported) {
 726                         mac->ht_enable = true;
 727
 728                         /*
 729                          * for cisco 1252 bw20 it's wrong
 730                          * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
 731                          *      mac->bw_40 = true;
 732                          * }
 733                          * */
 734                 }
 735
 736                 if (changed & BSS_CHANGED_BASIC_RATES) {
 737                         /* for 5G must << RATE_6M_INDEX=4,
 738                          * because 5G have no cck rate*/
 739                         if (rtlhal->current_bandtype == BAND_ON_5G)
 740                                 basic_rates = sta->supp_rates[1] << 4;
 741                         else
 742                                 basic_rates = sta->supp_rates[0];
 743
 744                         mac->basic_rates = basic_rates;
 745                         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 746                                         (u8 *) (&basic_rates));
 747                 }
 748                 rcu_read_unlock();
 749         }
 750
 751         /*
 752          * For FW LPS:
 753          * To tell firmware we have connected
 754          * to an AP. For 92SE/CE power save v2.
 755          */
 756         if (changed & BSS_CHANGED_ASSOC) {
 757                 if (bss_conf->assoc) {
 758                         if (ppsc->fwctrl_lps) {
 759                                 u8 mstatus = RT_MEDIA_CONNECT;
 760                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 761                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 762                                                       (u8 *) (&mstatus));
 763                                 ppsc->report_linked = true;
 764                         }
 765                 } else {
 766                         if (ppsc->fwctrl_lps) {
 767                                 u8 mstatus = RT_MEDIA_DISCONNECT;
 768                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 769                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 770                                                       (u8 *)(&mstatus));
 771                                 ppsc->report_linked = false;
 772                         }
 773                 }
 774         }
 775
 776 out:
 777         mutex_unlock(&rtlpriv->locks.conf_mutex);
 778 }
 779
 780 static u64 rtl_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 781 {
 782         struct rtl_priv *rtlpriv = rtl_priv(hw);
 783         u64 tsf;
 784
 785         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&tsf));
 786         return tsf;
 787 }
 788
 789 static void rtl_op_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 790                            u64 tsf)
 791 {
 792         struct rtl_priv *rtlpriv = rtl_priv(hw);
 793         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 794         u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
 795
 796         mac->tsf = tsf;
 797         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&bibss));
 798 }
 799
 800 static void rtl_op_reset_tsf(struct ieee80211_hw *hw,
 801                              struct ieee80211_vif *vif)
 802 {
 803         struct rtl_priv *rtlpriv = rtl_priv(hw);
 804         u8 tmp = 0;
 805
 806         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, (u8 *) (&tmp));
 807 }
 808
 809 static void rtl_op_sta_notify(struct ieee80211_hw *hw,
 810                               struct ieee80211_vif *vif,
 811                               enum sta_notify_cmd cmd,
 812                               struct ieee80211_sta *sta)
 813 {
 814         switch (cmd) {
 815         case STA_NOTIFY_SLEEP:
 816                 break;
 817         case STA_NOTIFY_AWAKE:
 818                 break;
 819         default:
 820                 break;
 821         }
 822 }
 823
 824 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
 825                                struct ieee80211_vif *vif,
 826                                enum ieee80211_ampdu_mlme_action action,
 827                                struct ieee80211_sta *sta, u16 tid, u16 *ssn,
 828                                u8 buf_size)
 829 {
 830         struct rtl_priv *rtlpriv = rtl_priv(hw);
 831
 832         switch (action) {
 833         case IEEE80211_AMPDU_TX_START:
 834                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 835                          ("IEEE80211_AMPDU_TX_START: TID:%d\n", tid));
 836                 return rtl_tx_agg_start(hw, sta, tid, ssn);
 837                 break;
 838         case IEEE80211_AMPDU_TX_STOP:
 839                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 840                          ("IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid));
 841                 return rtl_tx_agg_stop(hw, sta, tid);
 842                 break;
 843         case IEEE80211_AMPDU_TX_OPERATIONAL:
 844                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 845                          ("IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid));
 846                 rtl_tx_agg_oper(hw, sta, tid);
 847                 break;
 848         case IEEE80211_AMPDU_RX_START:
 849                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 850                          ("IEEE80211_AMPDU_RX_START:TID:%d\n", tid));
 851                 break;
 852         case IEEE80211_AMPDU_RX_STOP:
 853                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 854                          ("IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid));
 855                 break;
 856         default:
 857                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 858                          ("IEEE80211_AMPDU_ERR!!!!:\n"));
 859                 return -EOPNOTSUPP;
 860         }
 861         return 0;
 862 }
 863
 864 static void rtl_op_sw_scan_start(struct ieee80211_hw *hw)
 865 {
 866         struct rtl_priv *rtlpriv = rtl_priv(hw);
 867         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 868
 869         mac->act_scanning = true;
 870
 871         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
 872
 873         if (mac->link_state == MAC80211_LINKED) {
 874                 rtl_lps_leave(hw);
 875                 mac->link_state = MAC80211_LINKED_SCANNING;
 876         } else {
 877                 rtl_ips_nic_on(hw);
 878         }
 879
 880         /* Dual mac */
 881         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
 882
 883         rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
 884         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP);
 885 }
 886
 887 static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw)
 888 {
 889         struct rtl_priv *rtlpriv = rtl_priv(hw);
 890         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 891
 892         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
 893         mac->act_scanning = false;
 894         /* Dual mac */
 895         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
 896
 897         if (mac->link_state == MAC80211_LINKED_SCANNING) {
 898                 mac->link_state = MAC80211_LINKED;
 899                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 900                         /* fix fwlps issue */
 901                         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
 902                 }
 903         }
 904
 905         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
 906 }
 907
 908 static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 909                           struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 910                           struct ieee80211_key_conf *key)
 911 {
 912         struct rtl_priv *rtlpriv = rtl_priv(hw);
 913         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 914         u8 key_type = NO_ENCRYPTION;
 915         u8 key_idx;
 916         bool group_key = false;
 917         bool wep_only = false;
 918         int err = 0;
 919         u8 mac_addr[ETH_ALEN];
 920         u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 921         u8 zero_addr[ETH_ALEN] = { 0 };
 922
 923         if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
 924                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 925                          ("not open hw encryption\n"));
 926                 return -ENOSPC; /*User disabled HW-crypto */
 927         }
 928         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 929                  ("%s hardware based encryption for keyidx: %d, mac: %pM\n",
 930                   cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
 931                   sta ? sta->addr : bcast_addr));
 932         rtlpriv->sec.being_setkey = true;
 933         rtl_ips_nic_on(hw);
 934         mutex_lock(&rtlpriv->locks.conf_mutex);
 935         /* <1> get encryption alg */
 936
 937         switch (key->cipher) {
 938         case WLAN_CIPHER_SUITE_WEP40:
 939                 key_type = WEP40_ENCRYPTION;
 940                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:WEP40\n"));
 941                 break;
 942         case WLAN_CIPHER_SUITE_WEP104:
 943                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 944                          ("alg:WEP104\n"));
 945                 key_type = WEP104_ENCRYPTION;
 946                 break;
 947         case WLAN_CIPHER_SUITE_TKIP:
 948                 key_type = TKIP_ENCRYPTION;
 949                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:TKIP\n"));
 950                 break;
 951         case WLAN_CIPHER_SUITE_CCMP:
 952                 key_type = AESCCMP_ENCRYPTION;
 953                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:CCMP\n"));
 954                 break;
 955         default:
 956                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 957                          ("alg_err:%x!!!!:\n", key->cipher));
 958                 goto out_unlock;
 959         }
 960         if (key_type == WEP40_ENCRYPTION ||
 961                         key_type == WEP104_ENCRYPTION ||
 962                         mac->opmode == NL80211_IFTYPE_ADHOC)
 963                 rtlpriv->sec.use_defaultkey = true;
 964
 965         /* <2> get key_idx */
 966         key_idx = (u8) (key->keyidx);
 967         if (key_idx > 3)
 968                 goto out_unlock;
 969         /* <3> if pairwise key enable_hw_sec */
 970         group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
 971
 972         /* wep always be group key, but there are two conditions:
 973          * 1) wep only: is just for wep enc, in this condition
 974          * rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION
 975          * will be true & enable_hw_sec will be set when wep
 976          * ke setting.
 977          * 2) wep(group) + AES(pairwise): some AP like cisco
 978          * may use it, in this condition enable_hw_sec will not
 979          * be set when wep key setting */
 980         /* we must reset sec_info after lingked before set key,
 981          * or some flag will be wrong*/
 982         if (mac->opmode == NL80211_IFTYPE_AP) {
 983                 if (!group_key || key_type == WEP40_ENCRYPTION ||
 984                         key_type == WEP104_ENCRYPTION) {
 985                         if (group_key)
 986                                 wep_only = true;
 987                         rtlpriv->cfg->ops->enable_hw_sec(hw);
 988                 }
 989         } else {
 990                 if ((!group_key) || (mac->opmode == NL80211_IFTYPE_ADHOC) ||
 991                      rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
 992                         if (rtlpriv->sec.pairwise_enc_algorithm ==
 993                             NO_ENCRYPTION &&
 994                             (key_type == WEP40_ENCRYPTION ||
 995                             key_type == WEP104_ENCRYPTION))
 996                                 wep_only = true;
 997                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
 998                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 999                                 ("set enable_hw_sec, key_type:%x(OPEN:0 WEP40:1"
1000                                 " TKIP:2 AES:4 WEP104:5)\n", key_type));
1001                         rtlpriv->cfg->ops->enable_hw_sec(hw);
1002                 }
1003         }
1004         /* <4> set key based on cmd */
1005         switch (cmd) {
1006         case SET_KEY:
1007                 if (wep_only) {
1008                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1009                                  ("set WEP(group/pairwise) key\n"));
1010                         /* Pairwise key with an assigned MAC address. */
1011                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1012                         rtlpriv->sec.group_enc_algorithm = key_type;
1013                         /*set local buf about wep key. */
1014                         memcpy(rtlpriv->sec.key_buf[key_idx],
1015                                key->key, key->keylen);
1016                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1017                         memcpy(mac_addr, zero_addr, ETH_ALEN);
1018                 } else if (group_key) { /* group key */
1019                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1020                                  ("set group key\n"));
1021                         /* group key */
1022                         rtlpriv->sec.group_enc_algorithm = key_type;
1023                         /*set local buf about group key. */
1024                         memcpy(rtlpriv->sec.key_buf[key_idx],
1025                                key->key, key->keylen);
1026                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1027                         memcpy(mac_addr, bcast_addr, ETH_ALEN);
1028                 } else {        /* pairwise key */
1029                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1030                                  ("set pairwise key\n"));
1031                         if (!sta) {
1032                                 RT_ASSERT(false, ("pairwise key withnot"
1033                                                   "mac_addr\n"));
1034
1035                                 err = -EOPNOTSUPP;
1036                                 goto out_unlock;
1037                         }
1038                         /* Pairwise key with an assigned MAC address. */
1039                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1040                         /*set local buf about pairwise key. */
1041                         memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
1042                                key->key, key->keylen);
1043                         rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
1044                         rtlpriv->sec.pairwise_key =
1045                             rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
1046                         memcpy(mac_addr, sta->addr, ETH_ALEN);
1047                 }
1048                 rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
1049                                            group_key, key_type, wep_only,
1050                                            false);
1051                 /* <5> tell mac80211 do something: */
1052                 /*must use sw generate IV, or can not work !!!!. */
1053                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1054                 key->hw_key_idx = key_idx;
1055                 if (key_type == TKIP_ENCRYPTION)
1056                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1057                 break;
1058         case DISABLE_KEY:
1059                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1060                          ("disable key delete one entry\n"));
1061                 /*set local buf about wep key. */
1062                 if (mac->opmode == NL80211_IFTYPE_AP) {
1063                         if (sta)
1064                                 rtl_cam_del_entry(hw, sta->addr);
1065                 }
1066                 memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
1067                 rtlpriv->sec.key_len[key_idx] = 0;
1068                 memcpy(mac_addr, zero_addr, ETH_ALEN);
1069                 /*
1070                  *mac80211 will delete entrys one by one,
1071                  *so don't use rtl_cam_reset_all_entry
1072                  *or clear all entry here.
1073                  */
1074                 rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
1075
1076                 rtl_cam_reset_sec_info(hw);
1077
1078                 break;
1079         default:
1080                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1081                          ("cmd_err:%x!!!!:\n", cmd));
1082         }
1083 out_unlock:
1084         mutex_unlock(&rtlpriv->locks.conf_mutex);
1085         rtlpriv->sec.being_setkey = false;
1086         return err;
1087 }
1088
1089 static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
1090 {
1091         struct rtl_priv *rtlpriv = rtl_priv(hw);
1092
1093         bool radio_state;
1094         bool blocked;
1095         u8 valid = 0;
1096
1097         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1098                 return;
1099
1100         mutex_lock(&rtlpriv->locks.conf_mutex);
1101
1102         /*if Radio On return true here */
1103         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
1104
1105         if (valid) {
1106                 if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
1107                         rtlpriv->rfkill.rfkill_state = radio_state;
1108
1109                         RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
1110                                  (KERN_INFO "wireless radio switch turned %s\n",
1111                                   radio_state ? "on" : "off"));
1112
1113                         blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
1114                         wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
1115                 }
1116         }
1117
1118         mutex_unlock(&rtlpriv->locks.conf_mutex);
1119 }
1120
1121 /* this function is called by mac80211 to flush tx buffer
1122  * before switch channle or power save, or tx buffer packet
1123  * maybe send after offchannel or rf sleep, this may cause
1124  * dis-association by AP */
1125 static void rtl_op_flush(struct ieee80211_hw *hw, bool drop)
1126 {
1127         struct rtl_priv *rtlpriv = rtl_priv(hw);
1128
1129         if (rtlpriv->intf_ops->flush)
1130                 rtlpriv->intf_ops->flush(hw, drop);
1131 }
1132
1133 const struct ieee80211_ops rtl_ops = {
1134         .start = rtl_op_start,
1135         .stop = rtl_op_stop,
1136         .tx = rtl_op_tx,
1137         .add_interface = rtl_op_add_interface,
1138         .remove_interface = rtl_op_remove_interface,
1139         .config = rtl_op_config,
1140         .configure_filter = rtl_op_configure_filter,
1141         .sta_add = rtl_op_sta_add,
1142         .sta_remove = rtl_op_sta_remove,
1143         .set_key = rtl_op_set_key,
1144         .conf_tx = rtl_op_conf_tx,
1145         .bss_info_changed = rtl_op_bss_info_changed,
1146         .get_tsf = rtl_op_get_tsf,
1147         .set_tsf = rtl_op_set_tsf,
1148         .reset_tsf = rtl_op_reset_tsf,
1149         .sta_notify = rtl_op_sta_notify,
1150         .ampdu_action = rtl_op_ampdu_action,
1151         .sw_scan_start = rtl_op_sw_scan_start,
1152         .sw_scan_complete = rtl_op_sw_scan_complete,
1153         .rfkill_poll = rtl_op_rfkill_poll,
1154         .flush = rtl_op_flush,
1155 };