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