drivers/net/wireless/rtlwifi/core.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2012  Realtek Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * 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 "pci.h"
  35 #include "ps.h"
  36
  37 #include <linux/export.h>
  38
  39 void rtl_fw_cb(const struct firmware *firmware, void *context)
  40 {
  41         struct ieee80211_hw *hw = context;
  42         struct rtl_priv *rtlpriv = rtl_priv(hw);
  43         int err;
  44
  45         RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
  46                          "Firmware callback routine entered!\n");
  47         complete(&rtlpriv->firmware_loading_complete);
  48         if (!firmware) {
  49                 pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name);
  50                 rtlpriv->max_fw_size = 0;
  51                 return;
  52         }
  53         if (firmware->size > rtlpriv->max_fw_size) {
  54                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  55                          "Firmware is too big!\n");
  56                 release_firmware(firmware);
  57                 return;
  58         }
  59         memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size);
  60         rtlpriv->rtlhal.fwsize = firmware->size;
  61         release_firmware(firmware);
  62
  63         err = ieee80211_register_hw(hw);
  64         if (err) {
  65                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  66                          "Can't register mac80211 hw\n");
  67                 return;
  68         } else {
  69                 rtlpriv->mac80211.mac80211_registered = 1;
  70         }
  71         set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
  72
  73         /*init rfkill */
  74         rtl_init_rfkill(hw);
  75 }
  76 EXPORT_SYMBOL(rtl_fw_cb);
  77
  78 /*mutex for start & stop is must here. */
  79 static int rtl_op_start(struct ieee80211_hw *hw)
  80 {
  81         int err;
  82         struct rtl_priv *rtlpriv = rtl_priv(hw);
  83         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
  84
  85         if (!is_hal_stop(rtlhal))
  86                 return 0;
  87         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
  88                 return 0;
  89         mutex_lock(&rtlpriv->locks.conf_mutex);
  90         err = rtlpriv->intf_ops->adapter_start(hw);
  91         if (!err)
  92                 rtl_watch_dog_timer_callback((unsigned long)hw);
  93         mutex_unlock(&rtlpriv->locks.conf_mutex);
  94         return err;
  95 }
  96
  97 static void rtl_op_stop(struct ieee80211_hw *hw)
  98 {
  99         struct rtl_priv *rtlpriv = rtl_priv(hw);
 100         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 101         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 102         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 103
 104         if (is_hal_stop(rtlhal))
 105                 return;
 106
 107         /* here is must, because adhoc do stop and start,
 108          * but stop with RFOFF may cause something wrong,
 109          * like adhoc TP
 110          */
 111         if (unlikely(ppsc->rfpwr_state == ERFOFF)) {
 112                 rtl_ips_nic_on(hw);
 113         }
 114
 115         mutex_lock(&rtlpriv->locks.conf_mutex);
 116
 117         mac->link_state = MAC80211_NOLINK;
 118         memset(mac->bssid, 0, 6);
 119         mac->vendor = PEER_UNKNOWN;
 120
 121         /*reset sec info */
 122         rtl_cam_reset_sec_info(hw);
 123
 124         rtl_deinit_deferred_work(hw);
 125         rtlpriv->intf_ops->adapter_stop(hw);
 126
 127         mutex_unlock(&rtlpriv->locks.conf_mutex);
 128 }
 129
 130 static void rtl_op_tx(struct ieee80211_hw *hw,
 131                       struct ieee80211_tx_control *control,
 132                       struct sk_buff *skb)
 133 {
 134         struct rtl_priv *rtlpriv = rtl_priv(hw);
 135         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 136         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 137         struct rtl_tcb_desc tcb_desc;
 138         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 139
 140         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
 141                 goto err_free;
 142
 143         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
 144                 goto err_free;
 145
 146         if (!rtlpriv->intf_ops->waitq_insert(hw, control->sta, skb))
 147                 rtlpriv->intf_ops->adapter_tx(hw, control->sta, skb, &tcb_desc);
 148
 149         return;
 150
 151 err_free:
 152         dev_kfree_skb_any(skb);
 153 }
 154
 155 static int rtl_op_add_interface(struct ieee80211_hw *hw,
 156                 struct ieee80211_vif *vif)
 157 {
 158         struct rtl_priv *rtlpriv = rtl_priv(hw);
 159         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 160         int err = 0;
 161
 162         vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
 163
 164         if (mac->vif) {
 165                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 166                          "vif has been set!! mac->vif = 0x%p\n", mac->vif);
 167                 return -EOPNOTSUPP;
 168         }
 169
 170         rtl_ips_nic_on(hw);
 171
 172         mutex_lock(&rtlpriv->locks.conf_mutex);
 173
 174         switch (ieee80211_vif_type_p2p(vif)) {
 175         case NL80211_IFTYPE_P2P_CLIENT:
 176                 mac->p2p = P2P_ROLE_CLIENT;
 177                 /*fall through*/
 178         case NL80211_IFTYPE_STATION:
 179                 if (mac->beacon_enabled == 1) {
 180                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 181                                  "NL80211_IFTYPE_STATION\n");
 182                         mac->beacon_enabled = 0;
 183                         rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 184                                         rtlpriv->cfg->maps
 185                                         [RTL_IBSS_INT_MASKS]);
 186                 }
 187                 break;
 188         case NL80211_IFTYPE_ADHOC:
 189                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 190                          "NL80211_IFTYPE_ADHOC\n");
 191
 192                 mac->link_state = MAC80211_LINKED;
 193                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 194                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 195                         mac->basic_rates = 0xfff;
 196                 else
 197                         mac->basic_rates = 0xff0;
 198                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 199                                 (u8 *) (&mac->basic_rates));
 200
 201                 break;
 202         case NL80211_IFTYPE_P2P_GO:
 203                 mac->p2p = P2P_ROLE_GO;
 204                 /*fall through*/
 205         case NL80211_IFTYPE_AP:
 206                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 207                          "NL80211_IFTYPE_AP\n");
 208
 209                 mac->link_state = MAC80211_LINKED;
 210                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 211                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 212                         mac->basic_rates = 0xfff;
 213                 else
 214                         mac->basic_rates = 0xff0;
 215                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 216                                 (u8 *) (&mac->basic_rates));
 217                 break;
 218         case NL80211_IFTYPE_MESH_POINT:
 219                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 220                          "NL80211_IFTYPE_MESH_POINT\n");
 221
 222                 mac->link_state = MAC80211_LINKED;
 223                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 224                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 225                         mac->basic_rates = 0xfff;
 226                 else
 227                         mac->basic_rates = 0xff0;
 228                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 229                                 (u8 *)(&mac->basic_rates));
 230                 break;
 231         default:
 232                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 233                          "operation mode %d is not supported!\n", vif->type);
 234                 err = -EOPNOTSUPP;
 235                 goto out;
 236         }
 237
 238         if (mac->p2p) {
 239                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 240                          "p2p role %x\n", vif->type);
 241                 mac->basic_rates = 0xff0;/*disable cck rate for p2p*/
 242                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 243                                 (u8 *)(&mac->basic_rates));
 244         }
 245         mac->vif = vif;
 246         mac->opmode = vif->type;
 247         rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 248         memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
 249         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
 250
 251 out:
 252         mutex_unlock(&rtlpriv->locks.conf_mutex);
 253         return err;
 254 }
 255
 256 static void rtl_op_remove_interface(struct ieee80211_hw *hw,
 257                 struct ieee80211_vif *vif)
 258 {
 259         struct rtl_priv *rtlpriv = rtl_priv(hw);
 260         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 261
 262         mutex_lock(&rtlpriv->locks.conf_mutex);
 263
 264         /* Free beacon resources */
 265         if ((vif->type == NL80211_IFTYPE_AP) ||
 266             (vif->type == NL80211_IFTYPE_ADHOC) ||
 267             (vif->type == NL80211_IFTYPE_MESH_POINT)) {
 268                 if (mac->beacon_enabled == 1) {
 269                         mac->beacon_enabled = 0;
 270                         rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 271                                         rtlpriv->cfg->maps
 272                                         [RTL_IBSS_INT_MASKS]);
 273                 }
 274         }
 275
 276         /*
 277          *Note: We assume NL80211_IFTYPE_UNSPECIFIED as
 278          *NO LINK for our hardware.
 279          */
 280         mac->p2p = 0;
 281         mac->vif = NULL;
 282         mac->link_state = MAC80211_NOLINK;
 283         memset(mac->bssid, 0, 6);
 284         mac->vendor = PEER_UNKNOWN;
 285         mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
 286         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
 287         mutex_unlock(&rtlpriv->locks.conf_mutex);
 288 }
 289
 290 static int rtl_op_change_interface(struct ieee80211_hw *hw,
 291                                       struct ieee80211_vif *vif,
 292                                       enum nl80211_iftype new_type, bool p2p)
 293 {
 294         struct rtl_priv *rtlpriv = rtl_priv(hw);
 295         int ret;
 296         rtl_op_remove_interface(hw, vif);
 297
 298         vif->type = new_type;
 299         vif->p2p = p2p;
 300         ret = rtl_op_add_interface(hw, vif);
 301         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 302                  "p2p %x\n", p2p);
 303         return ret;
 304 }
 305
 306 static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
 307 {
 308         struct rtl_priv *rtlpriv = rtl_priv(hw);
 309         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 310         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 311         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 312         struct ieee80211_conf *conf = &hw->conf;
 313
 314         if (mac->skip_scan)
 315                 return 1;
 316
 317         mutex_lock(&rtlpriv->locks.conf_mutex);
 318         if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {  /*BIT(2)*/
 319                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 320                          "IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n");
 321         }
 322
 323         /*For IPS */
 324         if (changed & IEEE80211_CONF_CHANGE_IDLE) {
 325                 if (hw->conf.flags & IEEE80211_CONF_IDLE)
 326                         rtl_ips_nic_off(hw);
 327                 else
 328                         rtl_ips_nic_on(hw);
 329         } else {
 330                 /*
 331                  *although rfoff may not cause by ips, but we will
 332                  *check the reason in set_rf_power_state function
 333                  */
 334                 if (unlikely(ppsc->rfpwr_state == ERFOFF))
 335                         rtl_ips_nic_on(hw);
 336         }
 337
 338         /*For LPS */
 339         if (changed & IEEE80211_CONF_CHANGE_PS) {
 340                 cancel_delayed_work(&rtlpriv->works.ps_work);
 341                 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 342                 if (conf->flags & IEEE80211_CONF_PS) {
 343                         rtlpriv->psc.sw_ps_enabled = true;
 344                         /* sleep here is must, or we may recv the beacon and
 345                          * cause mac80211 into wrong ps state, this will cause
 346                          * power save nullfunc send fail, and further cause
 347                          * pkt loss, So sleep must quickly but not immediatly
 348                          * because that will cause nullfunc send by mac80211
 349                          * fail, and cause pkt loss, we have tested that 5mA
 350                          * is worked very well */
 351                         if (!rtlpriv->psc.multi_buffered)
 352                                 queue_delayed_work(rtlpriv->works.rtl_wq,
 353                                                 &rtlpriv->works.ps_work,
 354                                                 MSECS(5));
 355                 } else {
 356                         rtl_swlps_rf_awake(hw);
 357                         rtlpriv->psc.sw_ps_enabled = false;
 358                 }
 359         }
 360
 361         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
 362                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 363                          "IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
 364                          hw->conf.long_frame_max_tx_count);
 365                 mac->retry_long = hw->conf.long_frame_max_tx_count;
 366                 mac->retry_short = hw->conf.long_frame_max_tx_count;
 367                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
 368                                               (u8 *) (&hw->conf.
 369                                                       long_frame_max_tx_count));
 370         }
 371
 372         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 373                 struct ieee80211_channel *channel = hw->conf.chandef.chan;
 374                 u8 wide_chan = (u8) channel->hw_value;
 375
 376                 if (mac->act_scanning)
 377                         mac->n_channels++;
 378
 379                 if (rtlpriv->dm.supp_phymode_switch &&
 380                     mac->link_state < MAC80211_LINKED &&
 381                     !mac->act_scanning) {
 382                         if (rtlpriv->cfg->ops->chk_switch_dmdp)
 383                                 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
 384                 }
 385
 386                 /*
 387                  *because we should back channel to
 388                  *current_network.chan in in scanning,
 389                  *So if set_chan == current_network.chan
 390                  *we should set it.
 391                  *because mac80211 tell us wrong bw40
 392                  *info for cisco1253 bw20, so we modify
 393                  *it here based on UPPER & LOWER
 394                  */
 395                 switch (cfg80211_get_chandef_type(&hw->conf.chandef)) {
 396                 case NL80211_CHAN_HT20:
 397                 case NL80211_CHAN_NO_HT:
 398                         /* SC */
 399                         mac->cur_40_prime_sc =
 400                                 PRIME_CHNL_OFFSET_DONT_CARE;
 401                         rtlphy->current_chan_bw = HT_CHANNEL_WIDTH_20;
 402                         mac->bw_40 = false;
 403                         break;
 404                 case NL80211_CHAN_HT40MINUS:
 405                         /* SC */
 406                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_UPPER;
 407                         rtlphy->current_chan_bw =
 408                                 HT_CHANNEL_WIDTH_20_40;
 409                         mac->bw_40 = true;
 410
 411                         /*wide channel */
 412                         wide_chan -= 2;
 413
 414                         break;
 415                 case NL80211_CHAN_HT40PLUS:
 416                         /* SC */
 417                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_LOWER;
 418                         rtlphy->current_chan_bw =
 419                                 HT_CHANNEL_WIDTH_20_40;
 420                         mac->bw_40 = true;
 421
 422                         /*wide channel */
 423                         wide_chan += 2;
 424
 425                         break;
 426                 default:
 427                         mac->bw_40 = false;
 428                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 429                                  "switch case not processed\n");
 430                         break;
 431                 }
 432
 433                 if (wide_chan <= 0)
 434                         wide_chan = 1;
 435
 436                 /* In scanning, before we go offchannel we may send a ps = 1
 437                  * null to AP, and then we may send a ps = 0 null to AP quickly,
 438                  * but first null may have caused AP to put lots of packet to
 439                  * hw tx buffer. These packets must be tx'd before we go off
 440                  * channel so we must delay more time to let AP flush these
 441                  * packets before going offchannel, or dis-association or
 442                  * delete BA will be caused by AP
 443                  */
 444                 if (rtlpriv->mac80211.offchan_delay) {
 445                         rtlpriv->mac80211.offchan_delay = false;
 446                         mdelay(50);
 447                 }
 448                 rtlphy->current_channel = wide_chan;
 449
 450                 rtlpriv->cfg->ops->switch_channel(hw);
 451                 rtlpriv->cfg->ops->set_channel_access(hw);
 452                 rtlpriv->cfg->ops->set_bw_mode(hw,
 453                                 cfg80211_get_chandef_type(&hw->conf.chandef));
 454         }
 455
 456         mutex_unlock(&rtlpriv->locks.conf_mutex);
 457
 458         return 0;
 459 }
 460
 461 static void rtl_op_configure_filter(struct ieee80211_hw *hw,
 462                              unsigned int changed_flags,
 463                              unsigned int *new_flags, u64 multicast)
 464 {
 465         struct rtl_priv *rtlpriv = rtl_priv(hw);
 466         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 467
 468         *new_flags &= RTL_SUPPORTED_FILTERS;
 469         if (!changed_flags)
 470                 return;
 471
 472         /*TODO: we disable broadcase now, so enable here */
 473         if (changed_flags & FIF_ALLMULTI) {
 474                 if (*new_flags & FIF_ALLMULTI) {
 475                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
 476                             rtlpriv->cfg->maps[MAC_RCR_AB];
 477                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 478                                  "Enable receive multicast frame\n");
 479                 } else {
 480                         mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
 481                                           rtlpriv->cfg->maps[MAC_RCR_AB]);
 482                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 483                                  "Disable receive multicast frame\n");
 484                 }
 485         }
 486
 487         if (changed_flags & FIF_FCSFAIL) {
 488                 if (*new_flags & FIF_FCSFAIL) {
 489                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 490                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 491                                  "Enable receive FCS error frame\n");
 492                 } else {
 493                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 494                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 495                                  "Disable receive FCS error frame\n");
 496                 }
 497         }
 498
 499         /* if ssid not set to hw don't check bssid
 500          * here just used for linked scanning, & linked
 501          * and nolink check bssid is set in set network_type */
 502         if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) &&
 503                 (mac->link_state >= MAC80211_LINKED)) {
 504                 if (mac->opmode != NL80211_IFTYPE_AP &&
 505                     mac->opmode != NL80211_IFTYPE_MESH_POINT) {
 506                         if (*new_flags & FIF_BCN_PRBRESP_PROMISC) {
 507                                 rtlpriv->cfg->ops->set_chk_bssid(hw, false);
 508                         } else {
 509                                 rtlpriv->cfg->ops->set_chk_bssid(hw, true);
 510                         }
 511                 }
 512         }
 513
 514         if (changed_flags & FIF_CONTROL) {
 515                 if (*new_flags & FIF_CONTROL) {
 516                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
 517
 518                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 519                                  "Enable receive control frame\n");
 520                 } else {
 521                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
 522                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 523                                  "Disable receive control frame\n");
 524                 }
 525         }
 526
 527         if (changed_flags & FIF_OTHER_BSS) {
 528                 if (*new_flags & FIF_OTHER_BSS) {
 529                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
 530                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 531                                  "Enable receive other BSS's frame\n");
 532                 } else {
 533                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
 534                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 535                                  "Disable receive other BSS's frame\n");
 536                 }
 537         }
 538 }
 539 static int rtl_op_sta_add(struct ieee80211_hw *hw,
 540                          struct ieee80211_vif *vif,
 541                          struct ieee80211_sta *sta)
 542 {
 543         struct rtl_priv *rtlpriv = rtl_priv(hw);
 544         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 545         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 546         struct rtl_sta_info *sta_entry;
 547
 548         if (sta) {
 549                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 550                 spin_lock_bh(&rtlpriv->locks.entry_list_lock);
 551                 list_add_tail(&sta_entry->list, &rtlpriv->entry_list);
 552                 spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
 553                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 554                         sta_entry->wireless_mode = WIRELESS_MODE_G;
 555                         if (sta->supp_rates[0] <= 0xf)
 556                                 sta_entry->wireless_mode = WIRELESS_MODE_B;
 557                         if (sta->ht_cap.ht_supported == true)
 558                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 559
 560                         if (vif->type == NL80211_IFTYPE_ADHOC)
 561                                 sta_entry->wireless_mode = WIRELESS_MODE_G;
 562                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 563                         sta_entry->wireless_mode = WIRELESS_MODE_A;
 564                         if (sta->ht_cap.ht_supported == true)
 565                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 566
 567                         if (vif->type == NL80211_IFTYPE_ADHOC)
 568                                 sta_entry->wireless_mode = WIRELESS_MODE_A;
 569                 }
 570                 /*disable cck rate for p2p*/
 571                 if (mac->p2p)
 572                         sta->supp_rates[0] &= 0xfffffff0;
 573
 574                 memcpy(sta_entry->mac_addr, sta->addr, ETH_ALEN);
 575                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 576                          "Add sta addr is %pM\n", sta->addr);
 577                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 578         }
 579         return 0;
 580 }
 581
 582 static int rtl_op_sta_remove(struct ieee80211_hw *hw,
 583                                 struct ieee80211_vif *vif,
 584                                 struct ieee80211_sta *sta)
 585 {
 586         struct rtl_priv *rtlpriv = rtl_priv(hw);
 587         struct rtl_sta_info *sta_entry;
 588         if (sta) {
 589                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 590                          "Remove sta addr is %pM\n", sta->addr);
 591                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 592                 sta_entry->wireless_mode = 0;
 593                 sta_entry->ratr_index = 0;
 594
 595                 spin_lock_bh(&rtlpriv->locks.entry_list_lock);
 596                 list_del(&sta_entry->list);
 597                 spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
 598         }
 599         return 0;
 600 }
 601
 602 static int _rtl_get_hal_qnum(u16 queue)
 603 {
 604         int qnum;
 605
 606         switch (queue) {
 607         case 0:
 608                 qnum = AC3_VO;
 609                 break;
 610         case 1:
 611                 qnum = AC2_VI;
 612                 break;
 613         case 2:
 614                 qnum = AC0_BE;
 615                 break;
 616         case 3:
 617                 qnum = AC1_BK;
 618                 break;
 619         default:
 620                 qnum = AC0_BE;
 621                 break;
 622         }
 623         return qnum;
 624 }
 625
 626 /*
 627  *for mac80211 VO = 0, VI = 1, BE = 2, BK = 3
 628  *for rtl819x  BE = 0, BK = 1, VI = 2, VO = 3
 629  */
 630 static int rtl_op_conf_tx(struct ieee80211_hw *hw,
 631                    struct ieee80211_vif *vif, u16 queue,
 632                    const struct ieee80211_tx_queue_params *param)
 633 {
 634         struct rtl_priv *rtlpriv = rtl_priv(hw);
 635         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 636         int aci;
 637
 638         if (queue >= AC_MAX) {
 639                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 640                          "queue number %d is incorrect!\n", queue);
 641                 return -EINVAL;
 642         }
 643
 644         aci = _rtl_get_hal_qnum(queue);
 645         mac->ac[aci].aifs = param->aifs;
 646         mac->ac[aci].cw_min = cpu_to_le16(param->cw_min);
 647         mac->ac[aci].cw_max = cpu_to_le16(param->cw_max);
 648         mac->ac[aci].tx_op = cpu_to_le16(param->txop);
 649         memcpy(&mac->edca_param[aci], param, sizeof(*param));
 650         rtlpriv->cfg->ops->set_qos(hw, aci);
 651         return 0;
 652 }
 653
 654 static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 655                              struct ieee80211_vif *vif,
 656                              struct ieee80211_bss_conf *bss_conf, u32 changed)
 657 {
 658         struct rtl_priv *rtlpriv = rtl_priv(hw);
 659         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 660         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 661         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 662         struct ieee80211_sta *sta = NULL;
 663
 664         mutex_lock(&rtlpriv->locks.conf_mutex);
 665         if ((vif->type == NL80211_IFTYPE_ADHOC) ||
 666             (vif->type == NL80211_IFTYPE_AP) ||
 667             (vif->type == NL80211_IFTYPE_MESH_POINT)) {
 668                 if ((changed & BSS_CHANGED_BEACON) ||
 669                     (changed & BSS_CHANGED_BEACON_ENABLED &&
 670                      bss_conf->enable_beacon)) {
 671                         if (mac->beacon_enabled == 0) {
 672                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 673                                          "BSS_CHANGED_BEACON_ENABLED\n");
 674
 675                                 /*start hw beacon interrupt. */
 676                                 /*rtlpriv->cfg->ops->set_bcn_reg(hw); */
 677                                 mac->beacon_enabled = 1;
 678                                 rtlpriv->cfg->ops->update_interrupt_mask(hw,
 679                                                 rtlpriv->cfg->maps
 680                                                 [RTL_IBSS_INT_MASKS],
 681                                                 0);
 682
 683                                 if (rtlpriv->cfg->ops->linked_set_reg)
 684                                         rtlpriv->cfg->ops->linked_set_reg(hw);
 685                         }
 686                 }
 687                 if ((changed & BSS_CHANGED_BEACON_ENABLED &&
 688                         !bss_conf->enable_beacon)) {
 689                         if (mac->beacon_enabled == 1) {
 690                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 691                                          "ADHOC DISABLE BEACON\n");
 692
 693                                 mac->beacon_enabled = 0;
 694                                 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 695                                                 rtlpriv->cfg->maps
 696                                                 [RTL_IBSS_INT_MASKS]);
 697                         }
 698                 }
 699                 if (changed & BSS_CHANGED_BEACON_INT) {
 700                         RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE,
 701                                  "BSS_CHANGED_BEACON_INT\n");
 702                         mac->beacon_interval = bss_conf->beacon_int;
 703                         rtlpriv->cfg->ops->set_bcn_intv(hw);
 704                 }
 705         }
 706
 707         /*TODO: reference to enum ieee80211_bss_change */
 708         if (changed & BSS_CHANGED_ASSOC) {
 709                 if (bss_conf->assoc) {
 710                         struct ieee80211_sta *sta = NULL;
 711                         /* we should reset all sec info & cam
 712                          * before set cam after linked, we should not
 713                          * reset in disassoc, that will cause tkip->wep
 714                          * fail because some flag will be wrong */
 715                         /* reset sec info */
 716                         rtl_cam_reset_sec_info(hw);
 717                         /* reset cam to fix wep fail issue
 718                          * when change from wpa to wep */
 719                         rtl_cam_reset_all_entry(hw);
 720
 721                         mac->link_state = MAC80211_LINKED;
 722                         mac->cnt_after_linked = 0;
 723                         mac->assoc_id = bss_conf->aid;
 724                         memcpy(mac->bssid, bss_conf->bssid, 6);
 725
 726                         if (rtlpriv->cfg->ops->linked_set_reg)
 727                                 rtlpriv->cfg->ops->linked_set_reg(hw);
 728                         rcu_read_lock();
 729                         sta = ieee80211_find_sta(vif, (u8 *)bss_conf->bssid);
 730
 731                         if (vif->type == NL80211_IFTYPE_STATION && sta)
 732                                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 733                         RT_TRACE(rtlpriv, COMP_EASY_CONCURRENT, DBG_LOUD,
 734                                  "send PS STATIC frame\n");
 735                         if (rtlpriv->dm.supp_phymode_switch) {
 736                                 if (sta->ht_cap.ht_supported)
 737                                         rtl_send_smps_action(hw, sta,
 738                                                  IEEE80211_SMPS_STATIC);
 739                         }
 740                         rcu_read_unlock();
 741
 742                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 743                                  "BSS_CHANGED_ASSOC\n");
 744                 } else {
 745                         if (mac->link_state == MAC80211_LINKED) {
 746                                 rtlpriv->enter_ps = false;
 747                                 schedule_work(&rtlpriv->works.lps_change_work);
 748                         }
 749
 750                         if (ppsc->p2p_ps_info.p2p_ps_mode > P2P_PS_NONE)
 751                                 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
 752                         mac->link_state = MAC80211_NOLINK;
 753                         memset(mac->bssid, 0, 6);
 754                         mac->vendor = PEER_UNKNOWN;
 755
 756                         if (rtlpriv->dm.supp_phymode_switch) {
 757                                 if (rtlpriv->cfg->ops->chk_switch_dmdp)
 758                                         rtlpriv->cfg->ops->chk_switch_dmdp(hw);
 759                         }
 760
 761                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 762                                  "BSS_CHANGED_UN_ASSOC\n");
 763                 }
 764         }
 765
 766         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 767                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 768                          "BSS_CHANGED_ERP_CTS_PROT\n");
 769                 mac->use_cts_protect = bss_conf->use_cts_prot;
 770         }
 771
 772         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 773                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 774                          "BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
 775                          bss_conf->use_short_preamble);
 776
 777                 mac->short_preamble = bss_conf->use_short_preamble;
 778                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
 779                                               &mac->short_preamble);
 780         }
 781
 782         if (changed & BSS_CHANGED_ERP_SLOT) {
 783                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 784                          "BSS_CHANGED_ERP_SLOT\n");
 785
 786                 if (bss_conf->use_short_slot)
 787                         mac->slot_time = RTL_SLOT_TIME_9;
 788                 else
 789                         mac->slot_time = RTL_SLOT_TIME_20;
 790
 791                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
 792                                               &mac->slot_time);
 793         }
 794
 795         if (changed & BSS_CHANGED_HT) {
 796                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE, "BSS_CHANGED_HT\n");
 797                 rcu_read_lock();
 798                 sta = get_sta(hw, vif, bss_conf->bssid);
 799                 if (sta) {
 800                         if (sta->ht_cap.ampdu_density >
 801                             mac->current_ampdu_density)
 802                                 mac->current_ampdu_density =
 803                                     sta->ht_cap.ampdu_density;
 804                         if (sta->ht_cap.ampdu_factor <
 805                             mac->current_ampdu_factor)
 806                                 mac->current_ampdu_factor =
 807                                     sta->ht_cap.ampdu_factor;
 808                 }
 809                 rcu_read_unlock();
 810
 811                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
 812                                               &mac->max_mss_density);
 813                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
 814                                               &mac->current_ampdu_factor);
 815                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
 816                                               &mac->current_ampdu_density);
 817         }
 818
 819         if (changed & BSS_CHANGED_BSSID) {
 820                 u32 basic_rates;
 821
 822                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
 823                                               (u8 *) bss_conf->bssid);
 824
 825                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG, "%pM\n",
 826                          bss_conf->bssid);
 827
 828                 mac->vendor = PEER_UNKNOWN;
 829                 memcpy(mac->bssid, bss_conf->bssid, 6);
 830                 rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 831
 832                 rcu_read_lock();
 833                 sta = get_sta(hw, vif, bss_conf->bssid);
 834                 if (!sta) {
 835                         rcu_read_unlock();
 836                         goto out;
 837                 }
 838
 839                 if (rtlhal->current_bandtype == BAND_ON_5G) {
 840                         mac->mode = WIRELESS_MODE_A;
 841                 } else {
 842                         if (sta->supp_rates[0] <= 0xf)
 843                                 mac->mode = WIRELESS_MODE_B;
 844                         else
 845                                 mac->mode = WIRELESS_MODE_G;
 846                 }
 847
 848                 if (sta->ht_cap.ht_supported) {
 849                         if (rtlhal->current_bandtype == BAND_ON_2_4G)
 850                                 mac->mode = WIRELESS_MODE_N_24G;
 851                         else
 852                                 mac->mode = WIRELESS_MODE_N_5G;
 853                 }
 854
 855                 /* just station need it, because ibss & ap mode will
 856                  * set in sta_add, and will be NULL here */
 857                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 858                         struct rtl_sta_info *sta_entry;
 859                         sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 860                         sta_entry->wireless_mode = mac->mode;
 861                 }
 862
 863                 if (sta->ht_cap.ht_supported) {
 864                         mac->ht_enable = true;
 865
 866                         /*
 867                          * for cisco 1252 bw20 it's wrong
 868                          * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
 869                          *      mac->bw_40 = true;
 870                          * }
 871                          * */
 872                 }
 873
 874                 if (changed & BSS_CHANGED_BASIC_RATES) {
 875                         /* for 5G must << RATE_6M_INDEX = 4,
 876                          * because 5G have no cck rate*/
 877                         if (rtlhal->current_bandtype == BAND_ON_5G)
 878                                 basic_rates = sta->supp_rates[1] << 4;
 879                         else
 880                                 basic_rates = sta->supp_rates[0];
 881
 882                         mac->basic_rates = basic_rates;
 883                         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 884                                         (u8 *) (&basic_rates));
 885                 }
 886                 rcu_read_unlock();
 887         }
 888
 889         /*
 890          * For FW LPS:
 891          * To tell firmware we have connected
 892          * to an AP. For 92SE/CE power save v2.
 893          */
 894         if (changed & BSS_CHANGED_ASSOC) {
 895                 if (bss_conf->assoc) {
 896                         if (ppsc->fwctrl_lps) {
 897                                 u8 mstatus = RT_MEDIA_CONNECT;
 898                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 899                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 900                                                       &mstatus);
 901                                 ppsc->report_linked = true;
 902                         }
 903                 } else {
 904                         if (ppsc->fwctrl_lps) {
 905                                 u8 mstatus = RT_MEDIA_DISCONNECT;
 906                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 907                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 908                                                       &mstatus);
 909                                 ppsc->report_linked = false;
 910                         }
 911                 }
 912                 if (rtlpriv->cfg->ops->bt_wifi_media_status_notify)
 913                         rtlpriv->cfg->ops->bt_wifi_media_status_notify(hw,
 914                                                          ppsc->report_linked);
 915         }
 916
 917 out:
 918         mutex_unlock(&rtlpriv->locks.conf_mutex);
 919 }
 920
 921 static u64 rtl_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 922 {
 923         struct rtl_priv *rtlpriv = rtl_priv(hw);
 924         u64 tsf;
 925
 926         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&tsf));
 927         return tsf;
 928 }
 929
 930 static void rtl_op_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 931                            u64 tsf)
 932 {
 933         struct rtl_priv *rtlpriv = rtl_priv(hw);
 934         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 935         u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
 936
 937         mac->tsf = tsf;
 938         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, &bibss);
 939 }
 940
 941 static void rtl_op_reset_tsf(struct ieee80211_hw *hw,
 942                              struct ieee80211_vif *vif)
 943 {
 944         struct rtl_priv *rtlpriv = rtl_priv(hw);
 945         u8 tmp = 0;
 946
 947         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, &tmp);
 948 }
 949
 950 static void rtl_op_sta_notify(struct ieee80211_hw *hw,
 951                               struct ieee80211_vif *vif,
 952                               enum sta_notify_cmd cmd,
 953                               struct ieee80211_sta *sta)
 954 {
 955         switch (cmd) {
 956         case STA_NOTIFY_SLEEP:
 957                 break;
 958         case STA_NOTIFY_AWAKE:
 959                 break;
 960         default:
 961                 break;
 962         }
 963 }
 964
 965 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
 966                                struct ieee80211_vif *vif,
 967                                enum ieee80211_ampdu_mlme_action action,
 968                                struct ieee80211_sta *sta, u16 tid, u16 *ssn,
 969                                u8 buf_size)
 970 {
 971         struct rtl_priv *rtlpriv = rtl_priv(hw);
 972
 973         switch (action) {
 974         case IEEE80211_AMPDU_TX_START:
 975                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 976                          "IEEE80211_AMPDU_TX_START: TID:%d\n", tid);
 977                 return rtl_tx_agg_start(hw, sta, tid, ssn);
 978                 break;
 979         case IEEE80211_AMPDU_TX_STOP_CONT:
 980         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 981         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 982                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 983                          "IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid);
 984                 return rtl_tx_agg_stop(hw, sta, tid);
 985         case IEEE80211_AMPDU_TX_OPERATIONAL:
 986                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 987                          "IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid);
 988                 rtl_tx_agg_oper(hw, sta, tid);
 989                 break;
 990         case IEEE80211_AMPDU_RX_START:
 991                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 992                          "IEEE80211_AMPDU_RX_START:TID:%d\n", tid);
 993                 return rtl_rx_agg_start(hw, sta, tid);
 994         case IEEE80211_AMPDU_RX_STOP:
 995                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 996                          "IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid);
 997                 return rtl_rx_agg_stop(hw, sta, tid);
 998         default:
 999                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1000                          "IEEE80211_AMPDU_ERR!!!!:\n");
1001                 return -EOPNOTSUPP;
1002         }
1003         return 0;
1004 }
1005
1006 static void rtl_op_sw_scan_start(struct ieee80211_hw *hw)
1007 {
1008         struct rtl_priv *rtlpriv = rtl_priv(hw);
1009         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1010
1011         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1012         mac->act_scanning = true;
1013         if (rtlpriv->link_info.higher_busytraffic) {
1014                 mac->skip_scan = true;
1015                 return;
1016         }
1017
1018         if (rtlpriv->dm.supp_phymode_switch) {
1019                 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1020                         rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1021         }
1022         if (mac->link_state == MAC80211_LINKED) {
1023                 rtlpriv->enter_ps = false;
1024                 schedule_work(&rtlpriv->works.lps_change_work);
1025                 mac->link_state = MAC80211_LINKED_SCANNING;
1026         } else {
1027                 rtl_ips_nic_on(hw);
1028         }
1029
1030         /* Dual mac */
1031         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1032
1033         rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
1034         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP);
1035 }
1036
1037 static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw)
1038 {
1039         struct rtl_priv *rtlpriv = rtl_priv(hw);
1040         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1041
1042         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1043         mac->act_scanning = false;
1044         mac->skip_scan = false;
1045         if (rtlpriv->link_info.higher_busytraffic)
1046                 return;
1047
1048         /*p2p will use 1/6/11 to scan */
1049         if (mac->n_channels == 3)
1050                 mac->p2p_in_use = true;
1051         else
1052                 mac->p2p_in_use = false;
1053         mac->n_channels = 0;
1054         /* Dual mac */
1055         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1056
1057         if (mac->link_state == MAC80211_LINKED_SCANNING) {
1058                 mac->link_state = MAC80211_LINKED;
1059                 if (mac->opmode == NL80211_IFTYPE_STATION) {
1060                         /* fix fwlps issue */
1061                         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
1062                 }
1063         }
1064
1065         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
1066 }
1067
1068 static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1069                           struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1070                           struct ieee80211_key_conf *key)
1071 {
1072         struct rtl_priv *rtlpriv = rtl_priv(hw);
1073         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1074         u8 key_type = NO_ENCRYPTION;
1075         u8 key_idx;
1076         bool group_key = false;
1077         bool wep_only = false;
1078         int err = 0;
1079         u8 mac_addr[ETH_ALEN];
1080         u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1081
1082         if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
1083                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1084                          "not open hw encryption\n");
1085                 return -ENOSPC; /*User disabled HW-crypto */
1086         }
1087         /* To support IBSS, use sw-crypto for GTK */
1088         if (((vif->type == NL80211_IFTYPE_ADHOC) ||
1089              (vif->type == NL80211_IFTYPE_MESH_POINT)) &&
1090               !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
1091                 return -ENOSPC;
1092         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1093                  "%s hardware based encryption for keyidx: %d, mac: %pM\n",
1094                  cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
1095                  sta ? sta->addr : bcast_addr);
1096         rtlpriv->sec.being_setkey = true;
1097         rtl_ips_nic_on(hw);
1098         mutex_lock(&rtlpriv->locks.conf_mutex);
1099         /* <1> get encryption alg */
1100
1101         switch (key->cipher) {
1102         case WLAN_CIPHER_SUITE_WEP40:
1103                 key_type = WEP40_ENCRYPTION;
1104                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP40\n");
1105                 break;
1106         case WLAN_CIPHER_SUITE_WEP104:
1107                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP104\n");
1108                 key_type = WEP104_ENCRYPTION;
1109                 break;
1110         case WLAN_CIPHER_SUITE_TKIP:
1111                 key_type = TKIP_ENCRYPTION;
1112                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:TKIP\n");
1113                 break;
1114         case WLAN_CIPHER_SUITE_CCMP:
1115                 key_type = AESCCMP_ENCRYPTION;
1116                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CCMP\n");
1117                 break;
1118         case WLAN_CIPHER_SUITE_AES_CMAC:
1119                 /*HW doesn't support CMAC encryption, use software CMAC */
1120                 key_type = AESCMAC_ENCRYPTION;
1121                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CMAC\n");
1122                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1123                          "HW don't support CMAC encryption, use software CMAC\n");
1124                 err = -EOPNOTSUPP;
1125                 goto out_unlock;
1126         default:
1127                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "alg_err:%x!!!!\n",
1128                          key->cipher);
1129                 goto out_unlock;
1130         }
1131         if (key_type == WEP40_ENCRYPTION ||
1132                         key_type == WEP104_ENCRYPTION ||
1133                         mac->opmode == NL80211_IFTYPE_ADHOC)
1134                 rtlpriv->sec.use_defaultkey = true;
1135
1136         /* <2> get key_idx */
1137         key_idx = (u8) (key->keyidx);
1138         if (key_idx > 3)
1139                 goto out_unlock;
1140         /* <3> if pairwise key enable_hw_sec */
1141         group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
1142
1143         /* wep always be group key, but there are two conditions:
1144          * 1) wep only: is just for wep enc, in this condition
1145          * rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION
1146          * will be true & enable_hw_sec will be set when wep
1147          * key setting.
1148          * 2) wep(group) + AES(pairwise): some AP like cisco
1149          * may use it, in this condition enable_hw_sec will not
1150          * be set when wep key setting */
1151         /* we must reset sec_info after lingked before set key,
1152          * or some flag will be wrong*/
1153         if (vif->type == NL80211_IFTYPE_AP ||
1154             vif->type == NL80211_IFTYPE_MESH_POINT) {
1155                 if (!group_key || key_type == WEP40_ENCRYPTION ||
1156                         key_type == WEP104_ENCRYPTION) {
1157                         if (group_key)
1158                                 wep_only = true;
1159                         rtlpriv->cfg->ops->enable_hw_sec(hw);
1160                 }
1161         } else {
1162                 if ((!group_key) || (mac->opmode == NL80211_IFTYPE_ADHOC) ||
1163                      rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
1164                         if (rtlpriv->sec.pairwise_enc_algorithm ==
1165                             NO_ENCRYPTION &&
1166                             (key_type == WEP40_ENCRYPTION ||
1167                             key_type == WEP104_ENCRYPTION))
1168                                 wep_only = true;
1169                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1170                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1171                                  "set enable_hw_sec, key_type:%x(OPEN:0 WEP40:1 TKIP:2 AES:4 WEP104:5)\n",
1172                                  key_type);
1173                         rtlpriv->cfg->ops->enable_hw_sec(hw);
1174                 }
1175         }
1176         /* <4> set key based on cmd */
1177         switch (cmd) {
1178         case SET_KEY:
1179                 if (wep_only) {
1180                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1181                                  "set WEP(group/pairwise) key\n");
1182                         /* Pairwise key with an assigned MAC address. */
1183                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1184                         rtlpriv->sec.group_enc_algorithm = key_type;
1185                         /*set local buf about wep key. */
1186                         memcpy(rtlpriv->sec.key_buf[key_idx],
1187                                key->key, key->keylen);
1188                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1189                         eth_zero_addr(mac_addr);
1190                 } else if (group_key) { /* group key */
1191                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1192                                  "set group key\n");
1193                         /* group key */
1194                         rtlpriv->sec.group_enc_algorithm = key_type;
1195                         /*set local buf about group key. */
1196                         memcpy(rtlpriv->sec.key_buf[key_idx],
1197                                key->key, key->keylen);
1198                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1199                         memcpy(mac_addr, bcast_addr, ETH_ALEN);
1200                 } else {        /* pairwise key */
1201                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1202                                  "set pairwise key\n");
1203                         if (!sta) {
1204                                 RT_ASSERT(false,
1205                                           "pairwise key without mac_addr\n");
1206
1207                                 err = -EOPNOTSUPP;
1208                                 goto out_unlock;
1209                         }
1210                         /* Pairwise key with an assigned MAC address. */
1211                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1212                         /*set local buf about pairwise key. */
1213                         memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
1214                                key->key, key->keylen);
1215                         rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
1216                         rtlpriv->sec.pairwise_key =
1217                             rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
1218                         memcpy(mac_addr, sta->addr, ETH_ALEN);
1219                 }
1220                 rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
1221                                            group_key, key_type, wep_only,
1222                                            false);
1223                 /* <5> tell mac80211 do something: */
1224                 /*must use sw generate IV, or can not work !!!!. */
1225                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1226                 key->hw_key_idx = key_idx;
1227                 if (key_type == TKIP_ENCRYPTION)
1228                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1229                 /*use software CCMP encryption for management frames (MFP) */
1230                 if (key_type == AESCCMP_ENCRYPTION)
1231                         key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1232                 break;
1233         case DISABLE_KEY:
1234                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1235                          "disable key delete one entry\n");
1236                 /*set local buf about wep key. */
1237                 if (vif->type == NL80211_IFTYPE_AP ||
1238                     vif->type == NL80211_IFTYPE_MESH_POINT) {
1239                         if (sta)
1240                                 rtl_cam_del_entry(hw, sta->addr);
1241                 }
1242                 memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
1243                 rtlpriv->sec.key_len[key_idx] = 0;
1244                 eth_zero_addr(mac_addr);
1245                 /*
1246                  *mac80211 will delete entrys one by one,
1247                  *so don't use rtl_cam_reset_all_entry
1248                  *or clear all entry here.
1249                  */
1250                 rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
1251
1252                 rtl_cam_reset_sec_info(hw);
1253
1254                 break;
1255         default:
1256                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1257                          "cmd_err:%x!!!!\n", cmd);
1258         }
1259 out_unlock:
1260         mutex_unlock(&rtlpriv->locks.conf_mutex);
1261         rtlpriv->sec.being_setkey = false;
1262         return err;
1263 }
1264
1265 static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
1266 {
1267         struct rtl_priv *rtlpriv = rtl_priv(hw);
1268
1269         bool radio_state;
1270         bool blocked;
1271         u8 valid = 0;
1272
1273         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1274                 return;
1275
1276         mutex_lock(&rtlpriv->locks.conf_mutex);
1277
1278         /*if Radio On return true here */
1279         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
1280
1281         if (valid) {
1282                 if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
1283                         rtlpriv->rfkill.rfkill_state = radio_state;
1284
1285                         RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
1286                                  "wireless radio switch turned %s\n",
1287                                  radio_state ? "on" : "off");
1288
1289                         blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
1290                         wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
1291                 }
1292         }
1293
1294         mutex_unlock(&rtlpriv->locks.conf_mutex);
1295 }
1296
1297 /* this function is called by mac80211 to flush tx buffer
1298  * before switch channel or power save, or tx buffer packet
1299  * maybe send after offchannel or rf sleep, this may cause
1300  * dis-association by AP */
1301 static void rtl_op_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1302 {
1303         struct rtl_priv *rtlpriv = rtl_priv(hw);
1304
1305         if (rtlpriv->intf_ops->flush)
1306                 rtlpriv->intf_ops->flush(hw, drop);
1307 }
1308
1309 const struct ieee80211_ops rtl_ops = {
1310         .start = rtl_op_start,
1311         .stop = rtl_op_stop,
1312         .tx = rtl_op_tx,
1313         .add_interface = rtl_op_add_interface,
1314         .remove_interface = rtl_op_remove_interface,
1315         .change_interface = rtl_op_change_interface,
1316         .config = rtl_op_config,
1317         .configure_filter = rtl_op_configure_filter,
1318         .sta_add = rtl_op_sta_add,
1319         .sta_remove = rtl_op_sta_remove,
1320         .set_key = rtl_op_set_key,
1321         .conf_tx = rtl_op_conf_tx,
1322         .bss_info_changed = rtl_op_bss_info_changed,
1323         .get_tsf = rtl_op_get_tsf,
1324         .set_tsf = rtl_op_set_tsf,
1325         .reset_tsf = rtl_op_reset_tsf,
1326         .sta_notify = rtl_op_sta_notify,
1327         .ampdu_action = rtl_op_ampdu_action,
1328         .sw_scan_start = rtl_op_sw_scan_start,
1329         .sw_scan_complete = rtl_op_sw_scan_complete,
1330         .rfkill_poll = rtl_op_rfkill_poll,
1331         .flush = rtl_op_flush,
1332 };
1333 EXPORT_SYMBOL_GPL(rtl_ops);