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                 if (rtlpriv->cfg->alt_fw_name) {
  50                         err = request_firmware(&firmware,
  51                                                rtlpriv->cfg->alt_fw_name,
  52                                                rtlpriv->io.dev);
  53                         pr_info("Loading alternative firmware %s\n",
  54                                 rtlpriv->cfg->alt_fw_name);
  55                         if (!err)
  56                                 goto found_alt;
  57                 }
  58                 pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name);
  59                 rtlpriv->max_fw_size = 0;
  60                 return;
  61         }
  62 found_alt:
  63         if (firmware->size > rtlpriv->max_fw_size) {
  64                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  65                          "Firmware is too big!\n");
  66                 release_firmware(firmware);
  67                 return;
  68         }
  69         memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size);
  70         rtlpriv->rtlhal.fwsize = firmware->size;
  71         release_firmware(firmware);
  72
  73         err = ieee80211_register_hw(hw);
  74         if (err) {
  75                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  76                          "Can't register mac80211 hw\n");
  77                 return;
  78         } else {
  79                 rtlpriv->mac80211.mac80211_registered = 1;
  80         }
  81         set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
  82
  83         /*init rfkill */
  84         rtl_init_rfkill(hw);
  85 }
  86 EXPORT_SYMBOL(rtl_fw_cb);
  87
  88 /*mutex for start & stop is must here. */
  89 static int rtl_op_start(struct ieee80211_hw *hw)
  90 {
  91         int err;
  92         struct rtl_priv *rtlpriv = rtl_priv(hw);
  93         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
  94
  95         if (!is_hal_stop(rtlhal))
  96                 return 0;
  97         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
  98                 return 0;
  99         mutex_lock(&rtlpriv->locks.conf_mutex);
 100         err = rtlpriv->intf_ops->adapter_start(hw);
 101         if (!err)
 102                 rtl_watch_dog_timer_callback((unsigned long)hw);
 103         mutex_unlock(&rtlpriv->locks.conf_mutex);
 104         return err;
 105 }
 106
 107 static void rtl_op_stop(struct ieee80211_hw *hw)
 108 {
 109         struct rtl_priv *rtlpriv = rtl_priv(hw);
 110         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 111         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 112         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 113
 114         if (is_hal_stop(rtlhal))
 115                 return;
 116
 117         /* here is must, because adhoc do stop and start,
 118          * but stop with RFOFF may cause something wrong,
 119          * like adhoc TP
 120          */
 121         if (unlikely(ppsc->rfpwr_state == ERFOFF)) {
 122                 rtl_ips_nic_on(hw);
 123         }
 124
 125         mutex_lock(&rtlpriv->locks.conf_mutex);
 126
 127         mac->link_state = MAC80211_NOLINK;
 128         memset(mac->bssid, 0, 6);
 129         mac->vendor = PEER_UNKNOWN;
 130
 131         /*reset sec info */
 132         rtl_cam_reset_sec_info(hw);
 133
 134         rtl_deinit_deferred_work(hw);
 135         rtlpriv->intf_ops->adapter_stop(hw);
 136
 137         mutex_unlock(&rtlpriv->locks.conf_mutex);
 138 }
 139
 140 static void rtl_op_tx(struct ieee80211_hw *hw,
 141                       struct ieee80211_tx_control *control,
 142                       struct sk_buff *skb)
 143 {
 144         struct rtl_priv *rtlpriv = rtl_priv(hw);
 145         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 146         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 147         struct rtl_tcb_desc tcb_desc;
 148         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 149
 150         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
 151                 goto err_free;
 152
 153         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
 154                 goto err_free;
 155
 156         if (!rtlpriv->intf_ops->waitq_insert(hw, control->sta, skb))
 157                 rtlpriv->intf_ops->adapter_tx(hw, control->sta, skb, &tcb_desc);
 158
 159         return;
 160
 161 err_free:
 162         dev_kfree_skb_any(skb);
 163 }
 164
 165 static int rtl_op_add_interface(struct ieee80211_hw *hw,
 166                 struct ieee80211_vif *vif)
 167 {
 168         struct rtl_priv *rtlpriv = rtl_priv(hw);
 169         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 170         int err = 0;
 171
 172         vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
 173
 174         if (mac->vif) {
 175                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 176                          "vif has been set!! mac->vif = 0x%p\n", mac->vif);
 177                 return -EOPNOTSUPP;
 178         }
 179
 180         rtl_ips_nic_on(hw);
 181
 182         mutex_lock(&rtlpriv->locks.conf_mutex);
 183
 184         switch (ieee80211_vif_type_p2p(vif)) {
 185         case NL80211_IFTYPE_P2P_CLIENT:
 186                 mac->p2p = P2P_ROLE_CLIENT;
 187                 /*fall through*/
 188         case NL80211_IFTYPE_STATION:
 189                 if (mac->beacon_enabled == 1) {
 190                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 191                                  "NL80211_IFTYPE_STATION\n");
 192                         mac->beacon_enabled = 0;
 193                         rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 194                                         rtlpriv->cfg->maps
 195                                         [RTL_IBSS_INT_MASKS]);
 196                 }
 197                 mac->link_state = MAC80211_LINKED;
 198                 break;
 199         case NL80211_IFTYPE_ADHOC:
 200                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 201                          "NL80211_IFTYPE_ADHOC\n");
 202
 203                 mac->link_state = MAC80211_LINKED;
 204                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 205                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 206                         mac->basic_rates = 0xfff;
 207                 else
 208                         mac->basic_rates = 0xff0;
 209                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 210                                 (u8 *) (&mac->basic_rates));
 211
 212                 break;
 213         case NL80211_IFTYPE_P2P_GO:
 214                 mac->p2p = P2P_ROLE_GO;
 215                 /*fall through*/
 216         case NL80211_IFTYPE_AP:
 217                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 218                          "NL80211_IFTYPE_AP\n");
 219
 220                 mac->link_state = MAC80211_LINKED;
 221                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 222                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 223                         mac->basic_rates = 0xfff;
 224                 else
 225                         mac->basic_rates = 0xff0;
 226                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 227                                 (u8 *) (&mac->basic_rates));
 228                 break;
 229         case NL80211_IFTYPE_MESH_POINT:
 230                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 231                          "NL80211_IFTYPE_MESH_POINT\n");
 232
 233                 mac->link_state = MAC80211_LINKED;
 234                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 235                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 236                         mac->basic_rates = 0xfff;
 237                 else
 238                         mac->basic_rates = 0xff0;
 239                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 240                                 (u8 *)(&mac->basic_rates));
 241                 break;
 242         default:
 243                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 244                          "operation mode %d is not supported!\n", vif->type);
 245                 err = -EOPNOTSUPP;
 246                 goto out;
 247         }
 248
 249         if (mac->p2p) {
 250                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 251                          "p2p role %x\n", vif->type);
 252                 mac->basic_rates = 0xff0;/*disable cck rate for p2p*/
 253                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 254                                 (u8 *)(&mac->basic_rates));
 255         }
 256         mac->vif = vif;
 257         mac->opmode = vif->type;
 258         rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 259         memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
 260         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
 261
 262 out:
 263         mutex_unlock(&rtlpriv->locks.conf_mutex);
 264         return err;
 265 }
 266
 267 static void rtl_op_remove_interface(struct ieee80211_hw *hw,
 268                 struct ieee80211_vif *vif)
 269 {
 270         struct rtl_priv *rtlpriv = rtl_priv(hw);
 271         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 272
 273         mutex_lock(&rtlpriv->locks.conf_mutex);
 274
 275         /* Free beacon resources */
 276         if ((vif->type == NL80211_IFTYPE_AP) ||
 277             (vif->type == NL80211_IFTYPE_ADHOC) ||
 278             (vif->type == NL80211_IFTYPE_MESH_POINT)) {
 279                 if (mac->beacon_enabled == 1) {
 280                         mac->beacon_enabled = 0;
 281                         rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 282                                         rtlpriv->cfg->maps
 283                                         [RTL_IBSS_INT_MASKS]);
 284                 }
 285         }
 286
 287         /*
 288          *Note: We assume NL80211_IFTYPE_UNSPECIFIED as
 289          *NO LINK for our hardware.
 290          */
 291         mac->p2p = 0;
 292         mac->vif = NULL;
 293         mac->link_state = MAC80211_NOLINK;
 294         memset(mac->bssid, 0, 6);
 295         mac->vendor = PEER_UNKNOWN;
 296         mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
 297         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
 298         mutex_unlock(&rtlpriv->locks.conf_mutex);
 299 }
 300
 301 static int rtl_op_change_interface(struct ieee80211_hw *hw,
 302                                       struct ieee80211_vif *vif,
 303                                       enum nl80211_iftype new_type, bool p2p)
 304 {
 305         struct rtl_priv *rtlpriv = rtl_priv(hw);
 306         int ret;
 307         rtl_op_remove_interface(hw, vif);
 308
 309         vif->type = new_type;
 310         vif->p2p = p2p;
 311         ret = rtl_op_add_interface(hw, vif);
 312         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 313                  "p2p %x\n", p2p);
 314         return ret;
 315 }
 316
 317 static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
 318 {
 319         struct rtl_priv *rtlpriv = rtl_priv(hw);
 320         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 321         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 322         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 323         struct ieee80211_conf *conf = &hw->conf;
 324
 325         if (mac->skip_scan)
 326                 return 1;
 327
 328         mutex_lock(&rtlpriv->locks.conf_mutex);
 329         if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {  /*BIT(2)*/
 330                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 331                          "IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n");
 332         }
 333
 334         /*For IPS */
 335         if (changed & IEEE80211_CONF_CHANGE_IDLE) {
 336                 if (hw->conf.flags & IEEE80211_CONF_IDLE)
 337                         rtl_ips_nic_off(hw);
 338                 else
 339                         rtl_ips_nic_on(hw);
 340         } else {
 341                 /*
 342                  *although rfoff may not cause by ips, but we will
 343                  *check the reason in set_rf_power_state function
 344                  */
 345                 if (unlikely(ppsc->rfpwr_state == ERFOFF))
 346                         rtl_ips_nic_on(hw);
 347         }
 348
 349         /*For LPS */
 350         if (changed & IEEE80211_CONF_CHANGE_PS) {
 351                 cancel_delayed_work(&rtlpriv->works.ps_work);
 352                 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 353                 if (conf->flags & IEEE80211_CONF_PS) {
 354                         rtlpriv->psc.sw_ps_enabled = true;
 355                         /* sleep here is must, or we may recv the beacon and
 356                          * cause mac80211 into wrong ps state, this will cause
 357                          * power save nullfunc send fail, and further cause
 358                          * pkt loss, So sleep must quickly but not immediatly
 359                          * because that will cause nullfunc send by mac80211
 360                          * fail, and cause pkt loss, we have tested that 5mA
 361                          * is worked very well */
 362                         if (!rtlpriv->psc.multi_buffered)
 363                                 queue_delayed_work(rtlpriv->works.rtl_wq,
 364                                                 &rtlpriv->works.ps_work,
 365                                                 MSECS(5));
 366                 } else {
 367                         rtl_swlps_rf_awake(hw);
 368                         rtlpriv->psc.sw_ps_enabled = false;
 369                 }
 370         }
 371
 372         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
 373                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 374                          "IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
 375                          hw->conf.long_frame_max_tx_count);
 376                 mac->retry_long = hw->conf.long_frame_max_tx_count;
 377                 mac->retry_short = hw->conf.long_frame_max_tx_count;
 378                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
 379                                               (u8 *) (&hw->conf.
 380                                                       long_frame_max_tx_count));
 381         }
 382
 383         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 384                 struct ieee80211_channel *channel = hw->conf.chandef.chan;
 385                 u8 wide_chan = (u8) channel->hw_value;
 386
 387                 if (mac->act_scanning)
 388                         mac->n_channels++;
 389
 390                 if (rtlpriv->dm.supp_phymode_switch &&
 391                     mac->link_state < MAC80211_LINKED &&
 392                     !mac->act_scanning) {
 393                         if (rtlpriv->cfg->ops->chk_switch_dmdp)
 394                                 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
 395                 }
 396
 397                 /*
 398                  *because we should back channel to
 399                  *current_network.chan in in scanning,
 400                  *So if set_chan == current_network.chan
 401                  *we should set it.
 402                  *because mac80211 tell us wrong bw40
 403                  *info for cisco1253 bw20, so we modify
 404                  *it here based on UPPER & LOWER
 405                  */
 406                 switch (cfg80211_get_chandef_type(&hw->conf.chandef)) {
 407                 case NL80211_CHAN_HT20:
 408                 case NL80211_CHAN_NO_HT:
 409                         /* SC */
 410                         mac->cur_40_prime_sc =
 411                                 PRIME_CHNL_OFFSET_DONT_CARE;
 412                         rtlphy->current_chan_bw = HT_CHANNEL_WIDTH_20;
 413                         mac->bw_40 = false;
 414                         break;
 415                 case NL80211_CHAN_HT40MINUS:
 416                         /* SC */
 417                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_UPPER;
 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                 case NL80211_CHAN_HT40PLUS:
 427                         /* SC */
 428                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_LOWER;
 429                         rtlphy->current_chan_bw =
 430                                 HT_CHANNEL_WIDTH_20_40;
 431                         mac->bw_40 = true;
 432
 433                         /*wide channel */
 434                         wide_chan += 2;
 435
 436                         break;
 437                 default:
 438                         mac->bw_40 = false;
 439                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 440                                  "switch case not processed\n");
 441                         break;
 442                 }
 443
 444                 if (wide_chan <= 0)
 445                         wide_chan = 1;
 446
 447                 /* In scanning, before we go offchannel we may send a ps = 1
 448                  * null to AP, and then we may send a ps = 0 null to AP quickly,
 449                  * but first null may have caused AP to put lots of packet to
 450                  * hw tx buffer. These packets must be tx'd before we go off
 451                  * channel so we must delay more time to let AP flush these
 452                  * packets before going offchannel, or dis-association or
 453                  * delete BA will be caused by AP
 454                  */
 455                 if (rtlpriv->mac80211.offchan_delay) {
 456                         rtlpriv->mac80211.offchan_delay = false;
 457                         mdelay(50);
 458                 }
 459                 rtlphy->current_channel = wide_chan;
 460
 461                 rtlpriv->cfg->ops->switch_channel(hw);
 462                 rtlpriv->cfg->ops->set_channel_access(hw);
 463                 rtlpriv->cfg->ops->set_bw_mode(hw,
 464                                 cfg80211_get_chandef_type(&hw->conf.chandef));
 465         }
 466
 467         mutex_unlock(&rtlpriv->locks.conf_mutex);
 468
 469         return 0;
 470 }
 471
 472 static void rtl_op_configure_filter(struct ieee80211_hw *hw,
 473                              unsigned int changed_flags,
 474                              unsigned int *new_flags, u64 multicast)
 475 {
 476         struct rtl_priv *rtlpriv = rtl_priv(hw);
 477         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 478
 479         *new_flags &= RTL_SUPPORTED_FILTERS;
 480         if (!changed_flags)
 481                 return;
 482
 483         /*TODO: we disable broadcase now, so enable here */
 484         if (changed_flags & FIF_ALLMULTI) {
 485                 if (*new_flags & FIF_ALLMULTI) {
 486                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
 487                             rtlpriv->cfg->maps[MAC_RCR_AB];
 488                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 489                                  "Enable receive multicast frame\n");
 490                 } else {
 491                         mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
 492                                           rtlpriv->cfg->maps[MAC_RCR_AB]);
 493                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 494                                  "Disable receive multicast frame\n");
 495                 }
 496         }
 497
 498         if (changed_flags & FIF_FCSFAIL) {
 499                 if (*new_flags & FIF_FCSFAIL) {
 500                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 501                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 502                                  "Enable receive FCS error frame\n");
 503                 } else {
 504                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 505                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 506                                  "Disable receive FCS error frame\n");
 507                 }
 508         }
 509
 510         /* if ssid not set to hw don't check bssid
 511          * here just used for linked scanning, & linked
 512          * and nolink check bssid is set in set network_type */
 513         if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) &&
 514                 (mac->link_state >= MAC80211_LINKED)) {
 515                 if (mac->opmode != NL80211_IFTYPE_AP &&
 516                     mac->opmode != NL80211_IFTYPE_MESH_POINT) {
 517                         if (*new_flags & FIF_BCN_PRBRESP_PROMISC) {
 518                                 rtlpriv->cfg->ops->set_chk_bssid(hw, false);
 519                         } else {
 520                                 rtlpriv->cfg->ops->set_chk_bssid(hw, true);
 521                         }
 522                 }
 523         }
 524
 525         if (changed_flags & FIF_CONTROL) {
 526                 if (*new_flags & FIF_CONTROL) {
 527                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
 528
 529                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 530                                  "Enable receive control frame\n");
 531                 } else {
 532                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
 533                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 534                                  "Disable receive control frame\n");
 535                 }
 536         }
 537
 538         if (changed_flags & FIF_OTHER_BSS) {
 539                 if (*new_flags & FIF_OTHER_BSS) {
 540                         mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
 541                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 542                                  "Enable receive other BSS's frame\n");
 543                 } else {
 544                         mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
 545                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 546                                  "Disable receive other BSS's frame\n");
 547                 }
 548         }
 549 }
 550 static int rtl_op_sta_add(struct ieee80211_hw *hw,
 551                          struct ieee80211_vif *vif,
 552                          struct ieee80211_sta *sta)
 553 {
 554         struct rtl_priv *rtlpriv = rtl_priv(hw);
 555         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 556         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 557         struct rtl_sta_info *sta_entry;
 558
 559         if (sta) {
 560                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 561                 spin_lock_bh(&rtlpriv->locks.entry_list_lock);
 562                 list_add_tail(&sta_entry->list, &rtlpriv->entry_list);
 563                 spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
 564                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 565                         sta_entry->wireless_mode = WIRELESS_MODE_G;
 566                         if (sta->supp_rates[0] <= 0xf)
 567                                 sta_entry->wireless_mode = WIRELESS_MODE_B;
 568                         if (sta->ht_cap.ht_supported == true)
 569                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 570
 571                         if (vif->type == NL80211_IFTYPE_ADHOC)
 572                                 sta_entry->wireless_mode = WIRELESS_MODE_G;
 573                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 574                         sta_entry->wireless_mode = WIRELESS_MODE_A;
 575                         if (sta->ht_cap.ht_supported == true)
 576                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 577
 578                         if (vif->type == NL80211_IFTYPE_ADHOC)
 579                                 sta_entry->wireless_mode = WIRELESS_MODE_A;
 580                 }
 581                 /*disable cck rate for p2p*/
 582                 if (mac->p2p)
 583                         sta->supp_rates[0] &= 0xfffffff0;
 584
 585                 memcpy(sta_entry->mac_addr, sta->addr, ETH_ALEN);
 586                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 587                          "Add sta addr is %pM\n", sta->addr);
 588                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 589         }
 590         return 0;
 591 }
 592
 593 static int rtl_op_sta_remove(struct ieee80211_hw *hw,
 594                                 struct ieee80211_vif *vif,
 595                                 struct ieee80211_sta *sta)
 596 {
 597         struct rtl_priv *rtlpriv = rtl_priv(hw);
 598         struct rtl_sta_info *sta_entry;
 599         if (sta) {
 600                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 601                          "Remove sta addr is %pM\n", sta->addr);
 602                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 603                 sta_entry->wireless_mode = 0;
 604                 sta_entry->ratr_index = 0;
 605
 606                 spin_lock_bh(&rtlpriv->locks.entry_list_lock);
 607                 list_del(&sta_entry->list);
 608                 spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
 609         }
 610         return 0;
 611 }
 612
 613 static int _rtl_get_hal_qnum(u16 queue)
 614 {
 615         int qnum;
 616
 617         switch (queue) {
 618         case 0:
 619                 qnum = AC3_VO;
 620                 break;
 621         case 1:
 622                 qnum = AC2_VI;
 623                 break;
 624         case 2:
 625                 qnum = AC0_BE;
 626                 break;
 627         case 3:
 628                 qnum = AC1_BK;
 629                 break;
 630         default:
 631                 qnum = AC0_BE;
 632                 break;
 633         }
 634         return qnum;
 635 }
 636
 637 /*
 638  *for mac80211 VO = 0, VI = 1, BE = 2, BK = 3
 639  *for rtl819x  BE = 0, BK = 1, VI = 2, VO = 3
 640  */
 641 static int rtl_op_conf_tx(struct ieee80211_hw *hw,
 642                    struct ieee80211_vif *vif, u16 queue,
 643                    const struct ieee80211_tx_queue_params *param)
 644 {
 645         struct rtl_priv *rtlpriv = rtl_priv(hw);
 646         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 647         int aci;
 648
 649         if (queue >= AC_MAX) {
 650                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 651                          "queue number %d is incorrect!\n", queue);
 652                 return -EINVAL;
 653         }
 654
 655         aci = _rtl_get_hal_qnum(queue);
 656         mac->ac[aci].aifs = param->aifs;
 657         mac->ac[aci].cw_min = cpu_to_le16(param->cw_min);
 658         mac->ac[aci].cw_max = cpu_to_le16(param->cw_max);
 659         mac->ac[aci].tx_op = cpu_to_le16(param->txop);
 660         memcpy(&mac->edca_param[aci], param, sizeof(*param));
 661         rtlpriv->cfg->ops->set_qos(hw, aci);
 662         return 0;
 663 }
 664
 665 static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 666                              struct ieee80211_vif *vif,
 667                              struct ieee80211_bss_conf *bss_conf, u32 changed)
 668 {
 669         struct rtl_priv *rtlpriv = rtl_priv(hw);
 670         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 671         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 672         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 673         struct ieee80211_sta *sta = NULL;
 674
 675         mutex_lock(&rtlpriv->locks.conf_mutex);
 676         if ((vif->type == NL80211_IFTYPE_ADHOC) ||
 677             (vif->type == NL80211_IFTYPE_AP) ||
 678             (vif->type == NL80211_IFTYPE_MESH_POINT)) {
 679                 if ((changed & BSS_CHANGED_BEACON) ||
 680                     (changed & BSS_CHANGED_BEACON_ENABLED &&
 681                      bss_conf->enable_beacon)) {
 682                         if (mac->beacon_enabled == 0) {
 683                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 684                                          "BSS_CHANGED_BEACON_ENABLED\n");
 685
 686                                 /*start hw beacon interrupt. */
 687                                 /*rtlpriv->cfg->ops->set_bcn_reg(hw); */
 688                                 mac->beacon_enabled = 1;
 689                                 rtlpriv->cfg->ops->update_interrupt_mask(hw,
 690                                                 rtlpriv->cfg->maps
 691                                                 [RTL_IBSS_INT_MASKS],
 692                                                 0);
 693
 694                                 if (rtlpriv->cfg->ops->linked_set_reg)
 695                                         rtlpriv->cfg->ops->linked_set_reg(hw);
 696                         }
 697                 }
 698                 if ((changed & BSS_CHANGED_BEACON_ENABLED &&
 699                         !bss_conf->enable_beacon)) {
 700                         if (mac->beacon_enabled == 1) {
 701                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 702                                          "ADHOC DISABLE BEACON\n");
 703
 704                                 mac->beacon_enabled = 0;
 705                                 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 706                                                 rtlpriv->cfg->maps
 707                                                 [RTL_IBSS_INT_MASKS]);
 708                         }
 709                 }
 710                 if (changed & BSS_CHANGED_BEACON_INT) {
 711                         RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE,
 712                                  "BSS_CHANGED_BEACON_INT\n");
 713                         mac->beacon_interval = bss_conf->beacon_int;
 714                         rtlpriv->cfg->ops->set_bcn_intv(hw);
 715                 }
 716         }
 717
 718         /*TODO: reference to enum ieee80211_bss_change */
 719         if (changed & BSS_CHANGED_ASSOC) {
 720                 if (bss_conf->assoc) {
 721                         struct ieee80211_sta *sta = NULL;
 722                         /* we should reset all sec info & cam
 723                          * before set cam after linked, we should not
 724                          * reset in disassoc, that will cause tkip->wep
 725                          * fail because some flag will be wrong */
 726                         /* reset sec info */
 727                         rtl_cam_reset_sec_info(hw);
 728                         /* reset cam to fix wep fail issue
 729                          * when change from wpa to wep */
 730                         rtl_cam_reset_all_entry(hw);
 731
 732                         mac->link_state = MAC80211_LINKED;
 733                         mac->cnt_after_linked = 0;
 734                         mac->assoc_id = bss_conf->aid;
 735                         memcpy(mac->bssid, bss_conf->bssid, 6);
 736
 737                         if (rtlpriv->cfg->ops->linked_set_reg)
 738                                 rtlpriv->cfg->ops->linked_set_reg(hw);
 739                         rcu_read_lock();
 740                         sta = ieee80211_find_sta(vif, (u8 *)bss_conf->bssid);
 741
 742                         if (vif->type == NL80211_IFTYPE_STATION && sta)
 743                                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 744                         RT_TRACE(rtlpriv, COMP_EASY_CONCURRENT, DBG_LOUD,
 745                                  "send PS STATIC frame\n");
 746                         if (rtlpriv->dm.supp_phymode_switch) {
 747                                 if (sta->ht_cap.ht_supported)
 748                                         rtl_send_smps_action(hw, sta,
 749                                                  IEEE80211_SMPS_STATIC);
 750                         }
 751                         rcu_read_unlock();
 752
 753                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 754                                  "BSS_CHANGED_ASSOC\n");
 755                 } else {
 756                         if (mac->link_state == MAC80211_LINKED) {
 757                                 rtlpriv->enter_ps = false;
 758                                 schedule_work(&rtlpriv->works.lps_change_work);
 759                         }
 760
 761                         if (ppsc->p2p_ps_info.p2p_ps_mode > P2P_PS_NONE)
 762                                 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
 763                         mac->link_state = MAC80211_NOLINK;
 764                         memset(mac->bssid, 0, 6);
 765                         mac->vendor = PEER_UNKNOWN;
 766
 767                         if (rtlpriv->dm.supp_phymode_switch) {
 768                                 if (rtlpriv->cfg->ops->chk_switch_dmdp)
 769                                         rtlpriv->cfg->ops->chk_switch_dmdp(hw);
 770                         }
 771
 772                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 773                                  "BSS_CHANGED_UN_ASSOC\n");
 774                 }
 775         }
 776
 777         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 778                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 779                          "BSS_CHANGED_ERP_CTS_PROT\n");
 780                 mac->use_cts_protect = bss_conf->use_cts_prot;
 781         }
 782
 783         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 784                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 785                          "BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
 786                          bss_conf->use_short_preamble);
 787
 788                 mac->short_preamble = bss_conf->use_short_preamble;
 789                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
 790                                               &mac->short_preamble);
 791         }
 792
 793         if (changed & BSS_CHANGED_ERP_SLOT) {
 794                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 795                          "BSS_CHANGED_ERP_SLOT\n");
 796
 797                 if (bss_conf->use_short_slot)
 798                         mac->slot_time = RTL_SLOT_TIME_9;
 799                 else
 800                         mac->slot_time = RTL_SLOT_TIME_20;
 801
 802                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
 803                                               &mac->slot_time);
 804         }
 805
 806         if (changed & BSS_CHANGED_HT) {
 807                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE, "BSS_CHANGED_HT\n");
 808                 rcu_read_lock();
 809                 sta = get_sta(hw, vif, bss_conf->bssid);
 810                 if (sta) {
 811                         if (sta->ht_cap.ampdu_density >
 812                             mac->current_ampdu_density)
 813                                 mac->current_ampdu_density =
 814                                     sta->ht_cap.ampdu_density;
 815                         if (sta->ht_cap.ampdu_factor <
 816                             mac->current_ampdu_factor)
 817                                 mac->current_ampdu_factor =
 818                                     sta->ht_cap.ampdu_factor;
 819                 }
 820                 rcu_read_unlock();
 821
 822                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
 823                                               &mac->max_mss_density);
 824                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
 825                                               &mac->current_ampdu_factor);
 826                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
 827                                               &mac->current_ampdu_density);
 828         }
 829
 830         if (changed & BSS_CHANGED_BSSID) {
 831                 u32 basic_rates;
 832
 833                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
 834                                               (u8 *) bss_conf->bssid);
 835
 836                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG, "%pM\n",
 837                          bss_conf->bssid);
 838
 839                 mac->vendor = PEER_UNKNOWN;
 840                 memcpy(mac->bssid, bss_conf->bssid, 6);
 841                 rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 842
 843                 rcu_read_lock();
 844                 sta = get_sta(hw, vif, bss_conf->bssid);
 845                 if (!sta) {
 846                         rcu_read_unlock();
 847                         goto out;
 848                 }
 849
 850                 if (rtlhal->current_bandtype == BAND_ON_5G) {
 851                         mac->mode = WIRELESS_MODE_A;
 852                 } else {
 853                         if (sta->supp_rates[0] <= 0xf)
 854                                 mac->mode = WIRELESS_MODE_B;
 855                         else
 856                                 mac->mode = WIRELESS_MODE_G;
 857                 }
 858
 859                 if (sta->ht_cap.ht_supported) {
 860                         if (rtlhal->current_bandtype == BAND_ON_2_4G)
 861                                 mac->mode = WIRELESS_MODE_N_24G;
 862                         else
 863                                 mac->mode = WIRELESS_MODE_N_5G;
 864                 }
 865
 866                 /* just station need it, because ibss & ap mode will
 867                  * set in sta_add, and will be NULL here */
 868                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 869                         struct rtl_sta_info *sta_entry;
 870                         sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 871                         sta_entry->wireless_mode = mac->mode;
 872                 }
 873
 874                 if (sta->ht_cap.ht_supported) {
 875                         mac->ht_enable = true;
 876
 877                         /*
 878                          * for cisco 1252 bw20 it's wrong
 879                          * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
 880                          *      mac->bw_40 = true;
 881                          * }
 882                          * */
 883                 }
 884
 885                 if (changed & BSS_CHANGED_BASIC_RATES) {
 886                         /* for 5G must << RATE_6M_INDEX = 4,
 887                          * because 5G have no cck rate*/
 888                         if (rtlhal->current_bandtype == BAND_ON_5G)
 889                                 basic_rates = sta->supp_rates[1] << 4;
 890                         else
 891                                 basic_rates = sta->supp_rates[0];
 892
 893                         mac->basic_rates = basic_rates;
 894                         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 895                                         (u8 *) (&basic_rates));
 896                 }
 897                 rcu_read_unlock();
 898         }
 899
 900         /*
 901          * For FW LPS:
 902          * To tell firmware we have connected
 903          * to an AP. For 92SE/CE power save v2.
 904          */
 905         if (changed & BSS_CHANGED_ASSOC) {
 906                 if (bss_conf->assoc) {
 907                         if (ppsc->fwctrl_lps) {
 908                                 u8 mstatus = RT_MEDIA_CONNECT;
 909                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 910                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 911                                                       &mstatus);
 912                                 ppsc->report_linked = true;
 913                         }
 914                 } else {
 915                         if (ppsc->fwctrl_lps) {
 916                                 u8 mstatus = RT_MEDIA_DISCONNECT;
 917                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 918                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 919                                                       &mstatus);
 920                                 ppsc->report_linked = false;
 921                         }
 922                 }
 923                 if (rtlpriv->cfg->ops->bt_wifi_media_status_notify)
 924                         rtlpriv->cfg->ops->bt_wifi_media_status_notify(hw,
 925                                                          ppsc->report_linked);
 926         }
 927
 928 out:
 929         mutex_unlock(&rtlpriv->locks.conf_mutex);
 930 }
 931
 932 static u64 rtl_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 933 {
 934         struct rtl_priv *rtlpriv = rtl_priv(hw);
 935         u64 tsf;
 936
 937         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&tsf));
 938         return tsf;
 939 }
 940
 941 static void rtl_op_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 942                            u64 tsf)
 943 {
 944         struct rtl_priv *rtlpriv = rtl_priv(hw);
 945         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 946         u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
 947
 948         mac->tsf = tsf;
 949         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, &bibss);
 950 }
 951
 952 static void rtl_op_reset_tsf(struct ieee80211_hw *hw,
 953                              struct ieee80211_vif *vif)
 954 {
 955         struct rtl_priv *rtlpriv = rtl_priv(hw);
 956         u8 tmp = 0;
 957
 958         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, &tmp);
 959 }
 960
 961 static void rtl_op_sta_notify(struct ieee80211_hw *hw,
 962                               struct ieee80211_vif *vif,
 963                               enum sta_notify_cmd cmd,
 964                               struct ieee80211_sta *sta)
 965 {
 966         switch (cmd) {
 967         case STA_NOTIFY_SLEEP:
 968                 break;
 969         case STA_NOTIFY_AWAKE:
 970                 break;
 971         default:
 972                 break;
 973         }
 974 }
 975
 976 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
 977                                struct ieee80211_vif *vif,
 978                                enum ieee80211_ampdu_mlme_action action,
 979                                struct ieee80211_sta *sta, u16 tid, u16 *ssn,
 980                                u8 buf_size)
 981 {
 982         struct rtl_priv *rtlpriv = rtl_priv(hw);
 983
 984         switch (action) {
 985         case IEEE80211_AMPDU_TX_START:
 986                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 987                          "IEEE80211_AMPDU_TX_START: TID:%d\n", tid);
 988                 return rtl_tx_agg_start(hw, sta, tid, ssn);
 989                 break;
 990         case IEEE80211_AMPDU_TX_STOP_CONT:
 991         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 992         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 993                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 994                          "IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid);
 995                 return rtl_tx_agg_stop(hw, sta, tid);
 996         case IEEE80211_AMPDU_TX_OPERATIONAL:
 997                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 998                          "IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid);
 999                 rtl_tx_agg_oper(hw, sta, tid);
1000                 break;
1001         case IEEE80211_AMPDU_RX_START:
1002                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1003                          "IEEE80211_AMPDU_RX_START:TID:%d\n", tid);
1004                 return rtl_rx_agg_start(hw, sta, tid);
1005         case IEEE80211_AMPDU_RX_STOP:
1006                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1007                          "IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid);
1008                 return rtl_rx_agg_stop(hw, sta, tid);
1009         default:
1010                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1011                          "IEEE80211_AMPDU_ERR!!!!:\n");
1012                 return -EOPNOTSUPP;
1013         }
1014         return 0;
1015 }
1016
1017 static void rtl_op_sw_scan_start(struct ieee80211_hw *hw)
1018 {
1019         struct rtl_priv *rtlpriv = rtl_priv(hw);
1020         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1021
1022         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1023         mac->act_scanning = true;
1024         if (rtlpriv->link_info.higher_busytraffic) {
1025                 mac->skip_scan = true;
1026                 return;
1027         }
1028
1029         if (rtlpriv->dm.supp_phymode_switch) {
1030                 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1031                         rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1032         }
1033         if (mac->link_state == MAC80211_LINKED) {
1034                 rtlpriv->enter_ps = false;
1035                 schedule_work(&rtlpriv->works.lps_change_work);
1036                 mac->link_state = MAC80211_LINKED_SCANNING;
1037         } else {
1038                 rtl_ips_nic_on(hw);
1039         }
1040
1041         /* Dual mac */
1042         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1043
1044         rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
1045         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP);
1046 }
1047
1048 static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw)
1049 {
1050         struct rtl_priv *rtlpriv = rtl_priv(hw);
1051         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1052
1053         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1054         mac->act_scanning = false;
1055         mac->skip_scan = false;
1056         if (rtlpriv->link_info.higher_busytraffic)
1057                 return;
1058
1059         /*p2p will use 1/6/11 to scan */
1060         if (mac->n_channels == 3)
1061                 mac->p2p_in_use = true;
1062         else
1063                 mac->p2p_in_use = false;
1064         mac->n_channels = 0;
1065         /* Dual mac */
1066         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1067
1068         if (mac->link_state == MAC80211_LINKED_SCANNING) {
1069                 mac->link_state = MAC80211_LINKED;
1070                 if (mac->opmode == NL80211_IFTYPE_STATION) {
1071                         /* fix fwlps issue */
1072                         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
1073                 }
1074         }
1075
1076         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
1077 }
1078
1079 static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1080                           struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1081                           struct ieee80211_key_conf *key)
1082 {
1083         struct rtl_priv *rtlpriv = rtl_priv(hw);
1084         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1085         u8 key_type = NO_ENCRYPTION;
1086         u8 key_idx;
1087         bool group_key = false;
1088         bool wep_only = false;
1089         int err = 0;
1090         u8 mac_addr[ETH_ALEN];
1091         u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1092
1093         if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
1094                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1095                          "not open hw encryption\n");
1096                 return -ENOSPC; /*User disabled HW-crypto */
1097         }
1098         /* To support IBSS, use sw-crypto for GTK */
1099         if (((vif->type == NL80211_IFTYPE_ADHOC) ||
1100              (vif->type == NL80211_IFTYPE_MESH_POINT)) &&
1101               !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
1102                 return -ENOSPC;
1103         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1104                  "%s hardware based encryption for keyidx: %d, mac: %pM\n",
1105                  cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
1106                  sta ? sta->addr : bcast_addr);
1107         rtlpriv->sec.being_setkey = true;
1108         rtl_ips_nic_on(hw);
1109         mutex_lock(&rtlpriv->locks.conf_mutex);
1110         /* <1> get encryption alg */
1111
1112         switch (key->cipher) {
1113         case WLAN_CIPHER_SUITE_WEP40:
1114                 key_type = WEP40_ENCRYPTION;
1115                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP40\n");
1116                 break;
1117         case WLAN_CIPHER_SUITE_WEP104:
1118                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP104\n");
1119                 key_type = WEP104_ENCRYPTION;
1120                 break;
1121         case WLAN_CIPHER_SUITE_TKIP:
1122                 key_type = TKIP_ENCRYPTION;
1123                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:TKIP\n");
1124                 break;
1125         case WLAN_CIPHER_SUITE_CCMP:
1126                 key_type = AESCCMP_ENCRYPTION;
1127                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CCMP\n");
1128                 break;
1129         case WLAN_CIPHER_SUITE_AES_CMAC:
1130                 /*HW doesn't support CMAC encryption, use software CMAC */
1131                 key_type = AESCMAC_ENCRYPTION;
1132                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CMAC\n");
1133                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1134                          "HW don't support CMAC encryption, use software CMAC\n");
1135                 err = -EOPNOTSUPP;
1136                 goto out_unlock;
1137         default:
1138                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "alg_err:%x!!!!\n",
1139                          key->cipher);
1140                 goto out_unlock;
1141         }
1142         if (key_type == WEP40_ENCRYPTION ||
1143                         key_type == WEP104_ENCRYPTION ||
1144                         mac->opmode == NL80211_IFTYPE_ADHOC)
1145                 rtlpriv->sec.use_defaultkey = true;
1146
1147         /* <2> get key_idx */
1148         key_idx = (u8) (key->keyidx);
1149         if (key_idx > 3)
1150                 goto out_unlock;
1151         /* <3> if pairwise key enable_hw_sec */
1152         group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
1153
1154         /* wep always be group key, but there are two conditions:
1155          * 1) wep only: is just for wep enc, in this condition
1156          * rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION
1157          * will be true & enable_hw_sec will be set when wep
1158          * key setting.
1159          * 2) wep(group) + AES(pairwise): some AP like cisco
1160          * may use it, in this condition enable_hw_sec will not
1161          * be set when wep key setting */
1162         /* we must reset sec_info after lingked before set key,
1163          * or some flag will be wrong*/
1164         if (vif->type == NL80211_IFTYPE_AP ||
1165             vif->type == NL80211_IFTYPE_MESH_POINT) {
1166                 if (!group_key || key_type == WEP40_ENCRYPTION ||
1167                         key_type == WEP104_ENCRYPTION) {
1168                         if (group_key)
1169                                 wep_only = true;
1170                         rtlpriv->cfg->ops->enable_hw_sec(hw);
1171                 }
1172         } else {
1173                 if ((!group_key) || (mac->opmode == NL80211_IFTYPE_ADHOC) ||
1174                      rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
1175                         if (rtlpriv->sec.pairwise_enc_algorithm ==
1176                             NO_ENCRYPTION &&
1177                             (key_type == WEP40_ENCRYPTION ||
1178                             key_type == WEP104_ENCRYPTION))
1179                                 wep_only = true;
1180                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1181                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1182                                  "set enable_hw_sec, key_type:%x(OPEN:0 WEP40:1 TKIP:2 AES:4 WEP104:5)\n",
1183                                  key_type);
1184                         rtlpriv->cfg->ops->enable_hw_sec(hw);
1185                 }
1186         }
1187         /* <4> set key based on cmd */
1188         switch (cmd) {
1189         case SET_KEY:
1190                 if (wep_only) {
1191                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1192                                  "set WEP(group/pairwise) key\n");
1193                         /* Pairwise key with an assigned MAC address. */
1194                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1195                         rtlpriv->sec.group_enc_algorithm = key_type;
1196                         /*set local buf about wep key. */
1197                         memcpy(rtlpriv->sec.key_buf[key_idx],
1198                                key->key, key->keylen);
1199                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1200                         eth_zero_addr(mac_addr);
1201                 } else if (group_key) { /* group key */
1202                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1203                                  "set group key\n");
1204                         /* group key */
1205                         rtlpriv->sec.group_enc_algorithm = key_type;
1206                         /*set local buf about group key. */
1207                         memcpy(rtlpriv->sec.key_buf[key_idx],
1208                                key->key, key->keylen);
1209                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1210                         memcpy(mac_addr, bcast_addr, ETH_ALEN);
1211                 } else {        /* pairwise key */
1212                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1213                                  "set pairwise key\n");
1214                         if (!sta) {
1215                                 RT_ASSERT(false,
1216                                           "pairwise key without mac_addr\n");
1217
1218                                 err = -EOPNOTSUPP;
1219                                 goto out_unlock;
1220                         }
1221                         /* Pairwise key with an assigned MAC address. */
1222                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1223                         /*set local buf about pairwise key. */
1224                         memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
1225                                key->key, key->keylen);
1226                         rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
1227                         rtlpriv->sec.pairwise_key =
1228                             rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
1229                         memcpy(mac_addr, sta->addr, ETH_ALEN);
1230                 }
1231                 rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
1232                                            group_key, key_type, wep_only,
1233                                            false);
1234                 /* <5> tell mac80211 do something: */
1235                 /*must use sw generate IV, or can not work !!!!. */
1236                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1237                 key->hw_key_idx = key_idx;
1238                 if (key_type == TKIP_ENCRYPTION)
1239                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1240                 /*use software CCMP encryption for management frames (MFP) */
1241                 if (key_type == AESCCMP_ENCRYPTION)
1242                         key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1243                 break;
1244         case DISABLE_KEY:
1245                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1246                          "disable key delete one entry\n");
1247                 /*set local buf about wep key. */
1248                 if (vif->type == NL80211_IFTYPE_AP ||
1249                     vif->type == NL80211_IFTYPE_MESH_POINT) {
1250                         if (sta)
1251                                 rtl_cam_del_entry(hw, sta->addr);
1252                 }
1253                 memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
1254                 rtlpriv->sec.key_len[key_idx] = 0;
1255                 eth_zero_addr(mac_addr);
1256                 /*
1257                  *mac80211 will delete entrys one by one,
1258                  *so don't use rtl_cam_reset_all_entry
1259                  *or clear all entry here.
1260                  */
1261                 rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
1262
1263                 rtl_cam_reset_sec_info(hw);
1264
1265                 break;
1266         default:
1267                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1268                          "cmd_err:%x!!!!\n", cmd);
1269         }
1270 out_unlock:
1271         mutex_unlock(&rtlpriv->locks.conf_mutex);
1272         rtlpriv->sec.being_setkey = false;
1273         return err;
1274 }
1275
1276 static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
1277 {
1278         struct rtl_priv *rtlpriv = rtl_priv(hw);
1279
1280         bool radio_state;
1281         bool blocked;
1282         u8 valid = 0;
1283
1284         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1285                 return;
1286
1287         mutex_lock(&rtlpriv->locks.conf_mutex);
1288
1289         /*if Radio On return true here */
1290         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
1291
1292         if (valid) {
1293                 if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
1294                         rtlpriv->rfkill.rfkill_state = radio_state;
1295
1296                         RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
1297                                  "wireless radio switch turned %s\n",
1298                                  radio_state ? "on" : "off");
1299
1300                         blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
1301                         wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
1302                 }
1303         }
1304
1305         mutex_unlock(&rtlpriv->locks.conf_mutex);
1306 }
1307
1308 /* this function is called by mac80211 to flush tx buffer
1309  * before switch channel or power save, or tx buffer packet
1310  * maybe send after offchannel or rf sleep, this may cause
1311  * dis-association by AP */
1312 static void rtl_op_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1313 {
1314         struct rtl_priv *rtlpriv = rtl_priv(hw);
1315
1316         if (rtlpriv->intf_ops->flush)
1317                 rtlpriv->intf_ops->flush(hw, drop);
1318 }
1319
1320 const struct ieee80211_ops rtl_ops = {
1321         .start = rtl_op_start,
1322         .stop = rtl_op_stop,
1323         .tx = rtl_op_tx,
1324         .add_interface = rtl_op_add_interface,
1325         .remove_interface = rtl_op_remove_interface,
1326         .change_interface = rtl_op_change_interface,
1327         .config = rtl_op_config,
1328         .configure_filter = rtl_op_configure_filter,
1329         .sta_add = rtl_op_sta_add,
1330         .sta_remove = rtl_op_sta_remove,
1331         .set_key = rtl_op_set_key,
1332         .conf_tx = rtl_op_conf_tx,
1333         .bss_info_changed = rtl_op_bss_info_changed,
1334         .get_tsf = rtl_op_get_tsf,
1335         .set_tsf = rtl_op_set_tsf,
1336         .reset_tsf = rtl_op_reset_tsf,
1337         .sta_notify = rtl_op_sta_notify,
1338         .ampdu_action = rtl_op_ampdu_action,
1339         .sw_scan_start = rtl_op_sw_scan_start,
1340         .sw_scan_complete = rtl_op_sw_scan_complete,
1341         .rfkill_poll = rtl_op_rfkill_poll,
1342         .flush = rtl_op_flush,
1343 };