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 <[email protected]>
  23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  24  * Hsinchu 300, Taiwan.
  25  *
  26  * Larry Finger <[email protected]>
  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_addr_delay(u32 addr)
  40 {
  41         if (addr == 0xfe)
  42                 mdelay(50);
  43         else if (addr == 0xfd)
  44                 mdelay(5);
  45         else if (addr == 0xfc)
  46                 mdelay(1);
  47         else if (addr == 0xfb)
  48                 udelay(50);
  49         else if (addr == 0xfa)
  50                 udelay(5);
  51         else if (addr == 0xf9)
  52                 udelay(1);
  53 }
  54 EXPORT_SYMBOL(rtl_addr_delay);
  55
  56 void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
  57                      u32 mask, u32 data)
  58 {
  59         if (addr == 0xfe) {
  60                 mdelay(50);
  61         } else if (addr == 0xfd) {
  62                 mdelay(5);
  63         } else if (addr == 0xfc) {
  64                 mdelay(1);
  65         } else if (addr == 0xfb) {
  66                 udelay(50);
  67         } else if (addr == 0xfa) {
  68                 udelay(5);
  69         } else if (addr == 0xf9) {
  70                 udelay(1);
  71         } else {
  72                 rtl_set_rfreg(hw, rfpath, addr, mask, data);
  73                 udelay(1);
  74         }
  75 }
  76 EXPORT_SYMBOL(rtl_rfreg_delay);
  77
  78 void rtl_bb_delay(struct ieee80211_hw *hw, u32 addr, u32 data)
  79 {
  80         if (addr == 0xfe) {
  81                 mdelay(50);
  82         } else if (addr == 0xfd) {
  83                 mdelay(5);
  84         } else if (addr == 0xfc) {
  85                 mdelay(1);
  86         } else if (addr == 0xfb) {
  87                 udelay(50);
  88         } else if (addr == 0xfa) {
  89                 udelay(5);
  90         } else if (addr == 0xf9) {
  91                 udelay(1);
  92         } else {
  93                 rtl_set_bbreg(hw, addr, MASKDWORD, data);
  94                 udelay(1);
  95         }
  96 }
  97 EXPORT_SYMBOL(rtl_bb_delay);
  98
  99 void rtl_fw_cb(const struct firmware *firmware, void *context)
 100 {
 101         struct ieee80211_hw *hw = context;
 102         struct rtl_priv *rtlpriv = rtl_priv(hw);
 103         int err;
 104
 105         RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
 106                          "Firmware callback routine entered!\n");
 107         complete(&rtlpriv->firmware_loading_complete);
 108         if (!firmware) {
 109                 if (rtlpriv->cfg->alt_fw_name) {
 110                         err = request_firmware(&firmware,
 111                                                rtlpriv->cfg->alt_fw_name,
 112                                                rtlpriv->io.dev);
 113                         pr_info("Loading alternative firmware %s\n",
 114                                 rtlpriv->cfg->alt_fw_name);
 115                         if (!err)
 116                                 goto found_alt;
 117                 }
 118                 pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name);
 119                 rtlpriv->max_fw_size = 0;
 120                 return;
 121         }
 122 found_alt:
 123         if (firmware->size > rtlpriv->max_fw_size) {
 124                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 125                          "Firmware is too big!\n");
 126                 release_firmware(firmware);
 127                 return;
 128         }
 129         memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size);
 130         rtlpriv->rtlhal.fwsize = firmware->size;
 131         release_firmware(firmware);
 132
 133         err = ieee80211_register_hw(hw);
 134         if (err) {
 135                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 136                          "Can't register mac80211 hw\n");
 137                 return;
 138         } else {
 139                 rtlpriv->mac80211.mac80211_registered = 1;
 140         }
 141         set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
 142
 143         /*init rfkill */
 144         rtl_init_rfkill(hw);
 145 }
 146 EXPORT_SYMBOL(rtl_fw_cb);
 147
 148 /*mutex for start & stop is must here. */
 149 static int rtl_op_start(struct ieee80211_hw *hw)
 150 {
 151         int err;
 152         struct rtl_priv *rtlpriv = rtl_priv(hw);
 153         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 154
 155         if (!is_hal_stop(rtlhal))
 156                 return 0;
 157         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
 158                 return 0;
 159         mutex_lock(&rtlpriv->locks.conf_mutex);
 160         err = rtlpriv->intf_ops->adapter_start(hw);
 161         if (!err)
 162                 rtl_watch_dog_timer_callback((unsigned long)hw);
 163         mutex_unlock(&rtlpriv->locks.conf_mutex);
 164         return err;
 165 }
 166
 167 static void rtl_op_stop(struct ieee80211_hw *hw)
 168 {
 169         struct rtl_priv *rtlpriv = rtl_priv(hw);
 170         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 171         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 172         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 173
 174         if (is_hal_stop(rtlhal))
 175                 return;
 176
 177         /* here is must, because adhoc do stop and start,
 178          * but stop with RFOFF may cause something wrong,
 179          * like adhoc TP
 180          */
 181         if (unlikely(ppsc->rfpwr_state == ERFOFF)) {
 182                 rtl_ips_nic_on(hw);
 183         }
 184
 185         mutex_lock(&rtlpriv->locks.conf_mutex);
 186
 187         mac->link_state = MAC80211_NOLINK;
 188         memset(mac->bssid, 0, ETH_ALEN);
 189         mac->vendor = PEER_UNKNOWN;
 190
 191         /*reset sec info */
 192         rtl_cam_reset_sec_info(hw);
 193
 194         rtl_deinit_deferred_work(hw);
 195         rtlpriv->intf_ops->adapter_stop(hw);
 196
 197         mutex_unlock(&rtlpriv->locks.conf_mutex);
 198 }
 199
 200 static void rtl_op_tx(struct ieee80211_hw *hw,
 201                       struct ieee80211_tx_control *control,
 202                       struct sk_buff *skb)
 203 {
 204         struct rtl_priv *rtlpriv = rtl_priv(hw);
 205         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 206         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 207         struct rtl_tcb_desc tcb_desc;
 208         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 209
 210         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
 211                 goto err_free;
 212
 213         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
 214                 goto err_free;
 215
 216         if (!rtlpriv->intf_ops->waitq_insert(hw, control->sta, skb))
 217                 rtlpriv->intf_ops->adapter_tx(hw, control->sta, skb, &tcb_desc);
 218
 219         return;
 220
 221 err_free:
 222         dev_kfree_skb_any(skb);
 223 }
 224
 225 static int rtl_op_add_interface(struct ieee80211_hw *hw,
 226                 struct ieee80211_vif *vif)
 227 {
 228         struct rtl_priv *rtlpriv = rtl_priv(hw);
 229         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 230         int err = 0;
 231
 232         vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
 233
 234         if (mac->vif) {
 235                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 236                          "vif has been set!! mac->vif = 0x%p\n", mac->vif);
 237                 return -EOPNOTSUPP;
 238         }
 239
 240         rtl_ips_nic_on(hw);
 241
 242         mutex_lock(&rtlpriv->locks.conf_mutex);
 243
 244         switch (ieee80211_vif_type_p2p(vif)) {
 245         case NL80211_IFTYPE_P2P_CLIENT:
 246                 mac->p2p = P2P_ROLE_CLIENT;
 247                 /*fall through*/
 248         case NL80211_IFTYPE_STATION:
 249                 if (mac->beacon_enabled == 1) {
 250                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 251                                  "NL80211_IFTYPE_STATION\n");
 252                         mac->beacon_enabled = 0;
 253                         rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 254                                         rtlpriv->cfg->maps
 255                                         [RTL_IBSS_INT_MASKS]);
 256                 }
 257                 mac->link_state = MAC80211_LINKED;
 258                 break;
 259         case NL80211_IFTYPE_ADHOC:
 260                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 261                          "NL80211_IFTYPE_ADHOC\n");
 262
 263                 mac->link_state = MAC80211_LINKED;
 264                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 265                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 266                         mac->basic_rates = 0xfff;
 267                 else
 268                         mac->basic_rates = 0xff0;
 269                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 270                                 (u8 *) (&mac->basic_rates));
 271
 272                 break;
 273         case NL80211_IFTYPE_P2P_GO:
 274                 mac->p2p = P2P_ROLE_GO;
 275                 /*fall through*/
 276         case NL80211_IFTYPE_AP:
 277                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 278                          "NL80211_IFTYPE_AP\n");
 279
 280                 mac->link_state = MAC80211_LINKED;
 281                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 282                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 283                         mac->basic_rates = 0xfff;
 284                 else
 285                         mac->basic_rates = 0xff0;
 286                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 287                                 (u8 *) (&mac->basic_rates));
 288                 break;
 289         case NL80211_IFTYPE_MESH_POINT:
 290                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 291                          "NL80211_IFTYPE_MESH_POINT\n");
 292
 293                 mac->link_state = MAC80211_LINKED;
 294                 rtlpriv->cfg->ops->set_bcn_reg(hw);
 295                 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 296                         mac->basic_rates = 0xfff;
 297                 else
 298                         mac->basic_rates = 0xff0;
 299                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 300                                 (u8 *)(&mac->basic_rates));
 301                 break;
 302         default:
 303                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 304                          "operation mode %d is not supported!\n", vif->type);
 305                 err = -EOPNOTSUPP;
 306                 goto out;
 307         }
 308
 309         if (mac->p2p) {
 310                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 311                          "p2p role %x\n", vif->type);
 312                 mac->basic_rates = 0xff0;/*disable cck rate for p2p*/
 313                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 314                                 (u8 *)(&mac->basic_rates));
 315         }
 316         mac->vif = vif;
 317         mac->opmode = vif->type;
 318         rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 319         memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
 320         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
 321
 322 out:
 323         mutex_unlock(&rtlpriv->locks.conf_mutex);
 324         return err;
 325 }
 326
 327 static void rtl_op_remove_interface(struct ieee80211_hw *hw,
 328                 struct ieee80211_vif *vif)
 329 {
 330         struct rtl_priv *rtlpriv = rtl_priv(hw);
 331         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 332
 333         mutex_lock(&rtlpriv->locks.conf_mutex);
 334
 335         /* Free beacon resources */
 336         if ((vif->type == NL80211_IFTYPE_AP) ||
 337             (vif->type == NL80211_IFTYPE_ADHOC) ||
 338             (vif->type == NL80211_IFTYPE_MESH_POINT)) {
 339                 if (mac->beacon_enabled == 1) {
 340                         mac->beacon_enabled = 0;
 341                         rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 342                                         rtlpriv->cfg->maps
 343                                         [RTL_IBSS_INT_MASKS]);
 344                 }
 345         }
 346
 347         /*
 348          *Note: We assume NL80211_IFTYPE_UNSPECIFIED as
 349          *NO LINK for our hardware.
 350          */
 351         mac->p2p = 0;
 352         mac->vif = NULL;
 353         mac->link_state = MAC80211_NOLINK;
 354         memset(mac->bssid, 0, ETH_ALEN);
 355         mac->vendor = PEER_UNKNOWN;
 356         mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
 357         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
 358         mutex_unlock(&rtlpriv->locks.conf_mutex);
 359 }
 360
 361 static int rtl_op_change_interface(struct ieee80211_hw *hw,
 362                                       struct ieee80211_vif *vif,
 363                                       enum nl80211_iftype new_type, bool p2p)
 364 {
 365         struct rtl_priv *rtlpriv = rtl_priv(hw);
 366         int ret;
 367         rtl_op_remove_interface(hw, vif);
 368
 369         vif->type = new_type;
 370         vif->p2p = p2p;
 371         ret = rtl_op_add_interface(hw, vif);
 372         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 373                  "p2p %x\n", p2p);
 374         return ret;
 375 }
 376
 377 static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
 378 {
 379         struct rtl_priv *rtlpriv = rtl_priv(hw);
 380         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 381         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 382         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 383         struct ieee80211_conf *conf = &hw->conf;
 384
 385         if (mac->skip_scan)
 386                 return 1;
 387
 388         mutex_lock(&rtlpriv->locks.conf_mutex);
 389         if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {  /*BIT(2)*/
 390                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 391                          "IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n");
 392         }
 393
 394         /*For IPS */
 395         if (changed & IEEE80211_CONF_CHANGE_IDLE) {
 396                 if (hw->conf.flags & IEEE80211_CONF_IDLE)
 397                         rtl_ips_nic_off(hw);
 398                 else
 399                         rtl_ips_nic_on(hw);
 400         } else {
 401                 /*
 402                  *although rfoff may not cause by ips, but we will
 403                  *check the reason in set_rf_power_state function
 404                  */
 405                 if (unlikely(ppsc->rfpwr_state == ERFOFF))
 406                         rtl_ips_nic_on(hw);
 407         }
 408
 409         /*For LPS */
 410         if (changed & IEEE80211_CONF_CHANGE_PS) {
 411                 cancel_delayed_work(&rtlpriv->works.ps_work);
 412                 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 413                 if (conf->flags & IEEE80211_CONF_PS) {
 414                         rtlpriv->psc.sw_ps_enabled = true;
 415                         /* sleep here is must, or we may recv the beacon and
 416                          * cause mac80211 into wrong ps state, this will cause
 417                          * power save nullfunc send fail, and further cause
 418                          * pkt loss, So sleep must quickly but not immediatly
 419                          * because that will cause nullfunc send by mac80211
 420                          * fail, and cause pkt loss, we have tested that 5mA
 421                          * is worked very well */
 422                         if (!rtlpriv->psc.multi_buffered)
 423                                 queue_delayed_work(rtlpriv->works.rtl_wq,
 424                                                 &rtlpriv->works.ps_work,
 425                                                 MSECS(5));
 426                 } else {
 427                         rtl_swlps_rf_awake(hw);
 428                         rtlpriv->psc.sw_ps_enabled = false;
 429                 }
 430         }
 431
 432         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
 433                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 434                          "IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
 435                          hw->conf.long_frame_max_tx_count);
 436                 mac->retry_long = hw->conf.long_frame_max_tx_count;
 437                 mac->retry_short = hw->conf.long_frame_max_tx_count;
 438                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
 439                                               (u8 *) (&hw->conf.
 440                                                       long_frame_max_tx_count));
 441         }
 442
 443         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 444                 struct ieee80211_channel *channel = hw->conf.chandef.chan;
 445                 u8 wide_chan = (u8) channel->hw_value;
 446
 447                 if (mac->act_scanning)
 448                         mac->n_channels++;
 449
 450                 if (rtlpriv->dm.supp_phymode_switch &&
 451                     mac->link_state < MAC80211_LINKED &&
 452                     !mac->act_scanning) {
 453                         if (rtlpriv->cfg->ops->chk_switch_dmdp)
 454                                 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
 455                 }
 456
 457                 /*
 458                  *because we should back channel to
 459                  *current_network.chan in in scanning,
 460                  *So if set_chan == current_network.chan
 461                  *we should set it.
 462                  *because mac80211 tell us wrong bw40
 463                  *info for cisco1253 bw20, so we modify
 464                  *it here based on UPPER & LOWER
 465                  */
 466                 switch (cfg80211_get_chandef_type(&hw->conf.chandef)) {
 467                 case NL80211_CHAN_HT20:
 468                 case NL80211_CHAN_NO_HT:
 469                         /* SC */
 470                         mac->cur_40_prime_sc =
 471                                 PRIME_CHNL_OFFSET_DONT_CARE;
 472                         rtlphy->current_chan_bw = HT_CHANNEL_WIDTH_20;
 473                         mac->bw_40 = false;
 474                         break;
 475                 case NL80211_CHAN_HT40MINUS:
 476                         /* SC */
 477                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_UPPER;
 478                         rtlphy->current_chan_bw =
 479                                 HT_CHANNEL_WIDTH_20_40;
 480                         mac->bw_40 = true;
 481
 482                         /*wide channel */
 483                         wide_chan -= 2;
 484
 485                         break;
 486                 case NL80211_CHAN_HT40PLUS:
 487                         /* SC */
 488                         mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_LOWER;
 489                         rtlphy->current_chan_bw =
 490                                 HT_CHANNEL_WIDTH_20_40;
 491                         mac->bw_40 = true;
 492
 493                         /*wide channel */
 494                         wide_chan += 2;
 495
 496                         break;
 497                 default:
 498                         mac->bw_40 = false;
 499                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 500                                  "switch case not processed\n");
 501                         break;
 502                 }
 503
 504                 if (wide_chan <= 0)
 505                         wide_chan = 1;
 506
 507                 /* In scanning, before we go offchannel we may send a ps = 1
 508                  * null to AP, and then we may send a ps = 0 null to AP quickly,
 509                  * but first null may have caused AP to put lots of packet to
 510                  * hw tx buffer. These packets must be tx'd before we go off
 511                  * channel so we must delay more time to let AP flush these
 512                  * packets before going offchannel, or dis-association or
 513                  * delete BA will be caused by AP
 514                  */
 515                 if (rtlpriv->mac80211.offchan_delay) {
 516                         rtlpriv->mac80211.offchan_delay = false;
 517                         mdelay(50);
 518                 }
 519                 rtlphy->current_channel = wide_chan;
 520
 521                 rtlpriv->cfg->ops->switch_channel(hw);
 522                 rtlpriv->cfg->ops->set_channel_access(hw);
 523                 rtlpriv->cfg->ops->set_bw_mode(hw,
 524                                 cfg80211_get_chandef_type(&hw->conf.chandef));
 525         }
 526
 527         mutex_unlock(&rtlpriv->locks.conf_mutex);
 528
 529         return 0;
 530 }
 531
 532 static void rtl_op_configure_filter(struct ieee80211_hw *hw,
 533                              unsigned int changed_flags,
 534                              unsigned int *new_flags, u64 multicast)
 535 {
 536         struct rtl_priv *rtlpriv = rtl_priv(hw);
 537         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 538         u32 rx_conf;
 539
 540         *new_flags &= RTL_SUPPORTED_FILTERS;
 541         if (!changed_flags)
 542                 return;
 543
 544         /* if ssid not set to hw don't check bssid
 545          * here just used for linked scanning, & linked
 546          * and nolink check bssid is set in set network_type */
 547         if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) &&
 548                 (mac->link_state >= MAC80211_LINKED)) {
 549                 if (mac->opmode != NL80211_IFTYPE_AP &&
 550                     mac->opmode != NL80211_IFTYPE_MESH_POINT) {
 551                         if (*new_flags & FIF_BCN_PRBRESP_PROMISC) {
 552                                 rtlpriv->cfg->ops->set_chk_bssid(hw, false);
 553                         } else {
 554                                 rtlpriv->cfg->ops->set_chk_bssid(hw, true);
 555                         }
 556                 }
 557         }
 558
 559         /* must be called after set_chk_bssid since that function modifies the
 560          * RCR register too. */
 561         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *)(&rx_conf));
 562
 563         /*TODO: we disable broadcase now, so enable here */
 564         if (changed_flags & FIF_ALLMULTI) {
 565                 if (*new_flags & FIF_ALLMULTI) {
 566                         rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
 567                             rtlpriv->cfg->maps[MAC_RCR_AB];
 568                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 569                                  "Enable receive multicast frame\n");
 570                 } else {
 571                         rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
 572                                           rtlpriv->cfg->maps[MAC_RCR_AB]);
 573                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 574                                  "Disable receive multicast frame\n");
 575                 }
 576         }
 577
 578         if (changed_flags & FIF_FCSFAIL) {
 579                 if (*new_flags & FIF_FCSFAIL) {
 580                         rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 581                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 582                                  "Enable receive FCS error frame\n");
 583                 } else {
 584                         rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 585                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 586                                  "Disable receive FCS error frame\n");
 587                 }
 588         }
 589
 590
 591         if (changed_flags & FIF_CONTROL) {
 592                 if (*new_flags & FIF_CONTROL) {
 593                         rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
 594
 595                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 596                                  "Enable receive control frame\n");
 597                 } else {
 598                         rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
 599                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 600                                  "Disable receive control frame\n");
 601                 }
 602         }
 603
 604         if (changed_flags & FIF_OTHER_BSS) {
 605                 if (*new_flags & FIF_OTHER_BSS) {
 606                         rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
 607                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 608                                  "Enable receive other BSS's frame\n");
 609                 } else {
 610                         rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
 611                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 612                                  "Disable receive other BSS's frame\n");
 613                 }
 614         }
 615
 616         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, (u8 *)(&rx_conf));
 617 }
 618 static int rtl_op_sta_add(struct ieee80211_hw *hw,
 619                          struct ieee80211_vif *vif,
 620                          struct ieee80211_sta *sta)
 621 {
 622         struct rtl_priv *rtlpriv = rtl_priv(hw);
 623         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 624         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 625         struct rtl_sta_info *sta_entry;
 626
 627         if (sta) {
 628                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 629                 spin_lock_bh(&rtlpriv->locks.entry_list_lock);
 630                 list_add_tail(&sta_entry->list, &rtlpriv->entry_list);
 631                 spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
 632                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 633                         sta_entry->wireless_mode = WIRELESS_MODE_G;
 634                         if (sta->supp_rates[0] <= 0xf)
 635                                 sta_entry->wireless_mode = WIRELESS_MODE_B;
 636                         if (sta->ht_cap.ht_supported == true)
 637                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 638
 639                         if (vif->type == NL80211_IFTYPE_ADHOC)
 640                                 sta_entry->wireless_mode = WIRELESS_MODE_G;
 641                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 642                         sta_entry->wireless_mode = WIRELESS_MODE_A;
 643                         if (sta->ht_cap.ht_supported == true)
 644                                 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 645
 646                         if (vif->type == NL80211_IFTYPE_ADHOC)
 647                                 sta_entry->wireless_mode = WIRELESS_MODE_A;
 648                 }
 649                 /*disable cck rate for p2p*/
 650                 if (mac->p2p)
 651                         sta->supp_rates[0] &= 0xfffffff0;
 652
 653                 memcpy(sta_entry->mac_addr, sta->addr, ETH_ALEN);
 654                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 655                          "Add sta addr is %pM\n", sta->addr);
 656                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 657         }
 658         return 0;
 659 }
 660
 661 static int rtl_op_sta_remove(struct ieee80211_hw *hw,
 662                                 struct ieee80211_vif *vif,
 663                                 struct ieee80211_sta *sta)
 664 {
 665         struct rtl_priv *rtlpriv = rtl_priv(hw);
 666         struct rtl_sta_info *sta_entry;
 667         if (sta) {
 668                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 669                          "Remove sta addr is %pM\n", sta->addr);
 670                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 671                 sta_entry->wireless_mode = 0;
 672                 sta_entry->ratr_index = 0;
 673
 674                 spin_lock_bh(&rtlpriv->locks.entry_list_lock);
 675                 list_del(&sta_entry->list);
 676                 spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
 677         }
 678         return 0;
 679 }
 680
 681 static int _rtl_get_hal_qnum(u16 queue)
 682 {
 683         int qnum;
 684
 685         switch (queue) {
 686         case 0:
 687                 qnum = AC3_VO;
 688                 break;
 689         case 1:
 690                 qnum = AC2_VI;
 691                 break;
 692         case 2:
 693                 qnum = AC0_BE;
 694                 break;
 695         case 3:
 696                 qnum = AC1_BK;
 697                 break;
 698         default:
 699                 qnum = AC0_BE;
 700                 break;
 701         }
 702         return qnum;
 703 }
 704
 705 /*
 706  *for mac80211 VO = 0, VI = 1, BE = 2, BK = 3
 707  *for rtl819x  BE = 0, BK = 1, VI = 2, VO = 3
 708  */
 709 static int rtl_op_conf_tx(struct ieee80211_hw *hw,
 710                    struct ieee80211_vif *vif, u16 queue,
 711                    const struct ieee80211_tx_queue_params *param)
 712 {
 713         struct rtl_priv *rtlpriv = rtl_priv(hw);
 714         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 715         int aci;
 716
 717         if (queue >= AC_MAX) {
 718                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 719                          "queue number %d is incorrect!\n", queue);
 720                 return -EINVAL;
 721         }
 722
 723         aci = _rtl_get_hal_qnum(queue);
 724         mac->ac[aci].aifs = param->aifs;
 725         mac->ac[aci].cw_min = cpu_to_le16(param->cw_min);
 726         mac->ac[aci].cw_max = cpu_to_le16(param->cw_max);
 727         mac->ac[aci].tx_op = cpu_to_le16(param->txop);
 728         memcpy(&mac->edca_param[aci], param, sizeof(*param));
 729         rtlpriv->cfg->ops->set_qos(hw, aci);
 730         return 0;
 731 }
 732
 733 static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 734                              struct ieee80211_vif *vif,
 735                              struct ieee80211_bss_conf *bss_conf, u32 changed)
 736 {
 737         struct rtl_priv *rtlpriv = rtl_priv(hw);
 738         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 739         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 740         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 741         struct ieee80211_sta *sta = NULL;
 742
 743         mutex_lock(&rtlpriv->locks.conf_mutex);
 744         if ((vif->type == NL80211_IFTYPE_ADHOC) ||
 745             (vif->type == NL80211_IFTYPE_AP) ||
 746             (vif->type == NL80211_IFTYPE_MESH_POINT)) {
 747                 if ((changed & BSS_CHANGED_BEACON) ||
 748                     (changed & BSS_CHANGED_BEACON_ENABLED &&
 749                      bss_conf->enable_beacon)) {
 750                         if (mac->beacon_enabled == 0) {
 751                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 752                                          "BSS_CHANGED_BEACON_ENABLED\n");
 753
 754                                 /*start hw beacon interrupt. */
 755                                 /*rtlpriv->cfg->ops->set_bcn_reg(hw); */
 756                                 mac->beacon_enabled = 1;
 757                                 rtlpriv->cfg->ops->update_interrupt_mask(hw,
 758                                                 rtlpriv->cfg->maps
 759                                                 [RTL_IBSS_INT_MASKS],
 760                                                 0);
 761
 762                                 if (rtlpriv->cfg->ops->linked_set_reg)
 763                                         rtlpriv->cfg->ops->linked_set_reg(hw);
 764                         }
 765                 }
 766                 if ((changed & BSS_CHANGED_BEACON_ENABLED &&
 767                         !bss_conf->enable_beacon)) {
 768                         if (mac->beacon_enabled == 1) {
 769                                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 770                                          "ADHOC DISABLE BEACON\n");
 771
 772                                 mac->beacon_enabled = 0;
 773                                 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 774                                                 rtlpriv->cfg->maps
 775                                                 [RTL_IBSS_INT_MASKS]);
 776                         }
 777                 }
 778                 if (changed & BSS_CHANGED_BEACON_INT) {
 779                         RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE,
 780                                  "BSS_CHANGED_BEACON_INT\n");
 781                         mac->beacon_interval = bss_conf->beacon_int;
 782                         rtlpriv->cfg->ops->set_bcn_intv(hw);
 783                 }
 784         }
 785
 786         /*TODO: reference to enum ieee80211_bss_change */
 787         if (changed & BSS_CHANGED_ASSOC) {
 788                 if (bss_conf->assoc) {
 789                         struct ieee80211_sta *sta = NULL;
 790                         /* we should reset all sec info & cam
 791                          * before set cam after linked, we should not
 792                          * reset in disassoc, that will cause tkip->wep
 793                          * fail because some flag will be wrong */
 794                         /* reset sec info */
 795                         rtl_cam_reset_sec_info(hw);
 796                         /* reset cam to fix wep fail issue
 797                          * when change from wpa to wep */
 798                         rtl_cam_reset_all_entry(hw);
 799
 800                         mac->link_state = MAC80211_LINKED;
 801                         mac->cnt_after_linked = 0;
 802                         mac->assoc_id = bss_conf->aid;
 803                         memcpy(mac->bssid, bss_conf->bssid, ETH_ALEN);
 804
 805                         if (rtlpriv->cfg->ops->linked_set_reg)
 806                                 rtlpriv->cfg->ops->linked_set_reg(hw);
 807                         rcu_read_lock();
 808                         sta = ieee80211_find_sta(vif, (u8 *)bss_conf->bssid);
 809                         if (!sta) {
 810                                 pr_err("ieee80211_find_sta returned NULL\n");
 811                                 rcu_read_unlock();
 812                                 goto out;
 813                         }
 814
 815                         if (vif->type == NL80211_IFTYPE_STATION && sta)
 816                                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 817                         RT_TRACE(rtlpriv, COMP_EASY_CONCURRENT, DBG_LOUD,
 818                                  "send PS STATIC frame\n");
 819                         if (rtlpriv->dm.supp_phymode_switch) {
 820                                 if (sta->ht_cap.ht_supported)
 821                                         rtl_send_smps_action(hw, sta,
 822                                                  IEEE80211_SMPS_STATIC);
 823                         }
 824                         rcu_read_unlock();
 825
 826                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 827                                  "BSS_CHANGED_ASSOC\n");
 828                 } else {
 829                         if (mac->link_state == MAC80211_LINKED) {
 830                                 rtlpriv->enter_ps = false;
 831                                 schedule_work(&rtlpriv->works.lps_change_work);
 832                         }
 833
 834                         if (ppsc->p2p_ps_info.p2p_ps_mode > P2P_PS_NONE)
 835                                 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
 836                         mac->link_state = MAC80211_NOLINK;
 837                         memset(mac->bssid, 0, ETH_ALEN);
 838                         mac->vendor = PEER_UNKNOWN;
 839
 840                         if (rtlpriv->dm.supp_phymode_switch) {
 841                                 if (rtlpriv->cfg->ops->chk_switch_dmdp)
 842                                         rtlpriv->cfg->ops->chk_switch_dmdp(hw);
 843                         }
 844
 845                         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 846                                  "BSS_CHANGED_UN_ASSOC\n");
 847                 }
 848         }
 849
 850         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 851                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 852                          "BSS_CHANGED_ERP_CTS_PROT\n");
 853                 mac->use_cts_protect = bss_conf->use_cts_prot;
 854         }
 855
 856         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 857                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 858                          "BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
 859                          bss_conf->use_short_preamble);
 860
 861                 mac->short_preamble = bss_conf->use_short_preamble;
 862                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
 863                                               &mac->short_preamble);
 864         }
 865
 866         if (changed & BSS_CHANGED_ERP_SLOT) {
 867                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 868                          "BSS_CHANGED_ERP_SLOT\n");
 869
 870                 if (bss_conf->use_short_slot)
 871                         mac->slot_time = RTL_SLOT_TIME_9;
 872                 else
 873                         mac->slot_time = RTL_SLOT_TIME_20;
 874
 875                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
 876                                               &mac->slot_time);
 877         }
 878
 879         if (changed & BSS_CHANGED_HT) {
 880                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE, "BSS_CHANGED_HT\n");
 881                 rcu_read_lock();
 882                 sta = get_sta(hw, vif, bss_conf->bssid);
 883                 if (sta) {
 884                         if (sta->ht_cap.ampdu_density >
 885                             mac->current_ampdu_density)
 886                                 mac->current_ampdu_density =
 887                                     sta->ht_cap.ampdu_density;
 888                         if (sta->ht_cap.ampdu_factor <
 889                             mac->current_ampdu_factor)
 890                                 mac->current_ampdu_factor =
 891                                     sta->ht_cap.ampdu_factor;
 892                 }
 893                 rcu_read_unlock();
 894
 895                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
 896                                               &mac->max_mss_density);
 897                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
 898                                               &mac->current_ampdu_factor);
 899                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
 900                                               &mac->current_ampdu_density);
 901         }
 902
 903         if (changed & BSS_CHANGED_BSSID) {
 904                 u32 basic_rates;
 905
 906                 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
 907                                               (u8 *) bss_conf->bssid);
 908
 909                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG, "%pM\n",
 910                          bss_conf->bssid);
 911
 912                 mac->vendor = PEER_UNKNOWN;
 913                 memcpy(mac->bssid, bss_conf->bssid, ETH_ALEN);
 914                 rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 915
 916                 rcu_read_lock();
 917                 sta = get_sta(hw, vif, bss_conf->bssid);
 918                 if (!sta) {
 919                         rcu_read_unlock();
 920                         goto out;
 921                 }
 922
 923                 if (rtlhal->current_bandtype == BAND_ON_5G) {
 924                         mac->mode = WIRELESS_MODE_A;
 925                 } else {
 926                         if (sta->supp_rates[0] <= 0xf)
 927                                 mac->mode = WIRELESS_MODE_B;
 928                         else
 929                                 mac->mode = WIRELESS_MODE_G;
 930                 }
 931
 932                 if (sta->ht_cap.ht_supported) {
 933                         if (rtlhal->current_bandtype == BAND_ON_2_4G)
 934                                 mac->mode = WIRELESS_MODE_N_24G;
 935                         else
 936                                 mac->mode = WIRELESS_MODE_N_5G;
 937                 }
 938
 939                 /* just station need it, because ibss & ap mode will
 940                  * set in sta_add, and will be NULL here */
 941                 if (mac->opmode == NL80211_IFTYPE_STATION) {
 942                         struct rtl_sta_info *sta_entry;
 943                         sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 944                         sta_entry->wireless_mode = mac->mode;
 945                 }
 946
 947                 if (sta->ht_cap.ht_supported) {
 948                         mac->ht_enable = true;
 949
 950                         /*
 951                          * for cisco 1252 bw20 it's wrong
 952                          * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
 953                          *      mac->bw_40 = true;
 954                          * }
 955                          * */
 956                 }
 957
 958                 if (changed & BSS_CHANGED_BASIC_RATES) {
 959                         /* for 5G must << RATE_6M_INDEX = 4,
 960                          * because 5G have no cck rate*/
 961                         if (rtlhal->current_bandtype == BAND_ON_5G)
 962                                 basic_rates = sta->supp_rates[1] << 4;
 963                         else
 964                                 basic_rates = sta->supp_rates[0];
 965
 966                         mac->basic_rates = basic_rates;
 967                         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 968                                         (u8 *)(&basic_rates));
 969                 }
 970                 rcu_read_unlock();
 971         }
 972
 973         /*
 974          * For FW LPS:
 975          * To tell firmware we have connected
 976          * to an AP. For 92SE/CE power save v2.
 977          */
 978         if (changed & BSS_CHANGED_ASSOC) {
 979                 if (bss_conf->assoc) {
 980                         if (ppsc->fwctrl_lps) {
 981                                 u8 mstatus = RT_MEDIA_CONNECT;
 982                                 u8 keep_alive = 10;
 983                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 984                                                  HW_VAR_KEEP_ALIVE,
 985                                                  &keep_alive);
 986
 987                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 988                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 989                                                       &mstatus);
 990                                 ppsc->report_linked = true;
 991                         }
 992                 } else {
 993                         if (ppsc->fwctrl_lps) {
 994                                 u8 mstatus = RT_MEDIA_DISCONNECT;
 995                                 rtlpriv->cfg->ops->set_hw_reg(hw,
 996                                                       HW_VAR_H2C_FW_JOINBSSRPT,
 997                                                       &mstatus);
 998                                 ppsc->report_linked = false;
 999                         }
1000                 }
1001                 if (rtlpriv->cfg->ops->bt_wifi_media_status_notify)
1002                         rtlpriv->cfg->ops->bt_wifi_media_status_notify(hw,
1003                                                          ppsc->report_linked);
1004         }
1005
1006 out:
1007         mutex_unlock(&rtlpriv->locks.conf_mutex);
1008 }
1009
1010 static u64 rtl_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1011 {
1012         struct rtl_priv *rtlpriv = rtl_priv(hw);
1013         u64 tsf;
1014
1015         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&tsf));
1016         return tsf;
1017 }
1018
1019 static void rtl_op_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1020                            u64 tsf)
1021 {
1022         struct rtl_priv *rtlpriv = rtl_priv(hw);
1023         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1024         u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
1025
1026         mac->tsf = tsf;
1027         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, &bibss);
1028 }
1029
1030 static void rtl_op_reset_tsf(struct ieee80211_hw *hw,
1031                              struct ieee80211_vif *vif)
1032 {
1033         struct rtl_priv *rtlpriv = rtl_priv(hw);
1034         u8 tmp = 0;
1035
1036         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, &tmp);
1037 }
1038
1039 static void rtl_op_sta_notify(struct ieee80211_hw *hw,
1040                               struct ieee80211_vif *vif,
1041                               enum sta_notify_cmd cmd,
1042                               struct ieee80211_sta *sta)
1043 {
1044         switch (cmd) {
1045         case STA_NOTIFY_SLEEP:
1046                 break;
1047         case STA_NOTIFY_AWAKE:
1048                 break;
1049         default:
1050                 break;
1051         }
1052 }
1053
1054 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
1055                                struct ieee80211_vif *vif,
1056                                enum ieee80211_ampdu_mlme_action action,
1057                                struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1058                                u8 buf_size)
1059 {
1060         struct rtl_priv *rtlpriv = rtl_priv(hw);
1061
1062         switch (action) {
1063         case IEEE80211_AMPDU_TX_START:
1064                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1065                          "IEEE80211_AMPDU_TX_START: TID:%d\n", tid);
1066                 return rtl_tx_agg_start(hw, sta, tid, ssn);
1067                 break;
1068         case IEEE80211_AMPDU_TX_STOP_CONT:
1069         case IEEE80211_AMPDU_TX_STOP_FLUSH:
1070         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1071                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1072                          "IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid);
1073                 return rtl_tx_agg_stop(hw, sta, tid);
1074         case IEEE80211_AMPDU_TX_OPERATIONAL:
1075                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1076                          "IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid);
1077                 rtl_tx_agg_oper(hw, sta, tid);
1078                 break;
1079         case IEEE80211_AMPDU_RX_START:
1080                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1081                          "IEEE80211_AMPDU_RX_START:TID:%d\n", tid);
1082                 return rtl_rx_agg_start(hw, sta, tid);
1083         case IEEE80211_AMPDU_RX_STOP:
1084                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1085                          "IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid);
1086                 return rtl_rx_agg_stop(hw, sta, tid);
1087         default:
1088                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1089                          "IEEE80211_AMPDU_ERR!!!!:\n");
1090                 return -EOPNOTSUPP;
1091         }
1092         return 0;
1093 }
1094
1095 static void rtl_op_sw_scan_start(struct ieee80211_hw *hw)
1096 {
1097         struct rtl_priv *rtlpriv = rtl_priv(hw);
1098         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1099
1100         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1101         mac->act_scanning = true;
1102         if (rtlpriv->link_info.higher_busytraffic) {
1103                 mac->skip_scan = true;
1104                 return;
1105         }
1106
1107         if (rtlpriv->dm.supp_phymode_switch) {
1108                 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1109                         rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1110         }
1111         if (mac->link_state == MAC80211_LINKED) {
1112                 rtlpriv->enter_ps = false;
1113                 schedule_work(&rtlpriv->works.lps_change_work);
1114                 mac->link_state = MAC80211_LINKED_SCANNING;
1115         } else {
1116                 rtl_ips_nic_on(hw);
1117         }
1118
1119         /* Dual mac */
1120         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1121
1122         rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
1123         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP);
1124 }
1125
1126 static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw)
1127 {
1128         struct rtl_priv *rtlpriv = rtl_priv(hw);
1129         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1130
1131         RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1132         mac->act_scanning = false;
1133         mac->skip_scan = false;
1134         if (rtlpriv->link_info.higher_busytraffic)
1135                 return;
1136
1137         /*p2p will use 1/6/11 to scan */
1138         if (mac->n_channels == 3)
1139                 mac->p2p_in_use = true;
1140         else
1141                 mac->p2p_in_use = false;
1142         mac->n_channels = 0;
1143         /* Dual mac */
1144         rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1145
1146         if (mac->link_state == MAC80211_LINKED_SCANNING) {
1147                 mac->link_state = MAC80211_LINKED;
1148                 if (mac->opmode == NL80211_IFTYPE_STATION) {
1149                         /* fix fwlps issue */
1150                         rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
1151                 }
1152         }
1153
1154         rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
1155 }
1156
1157 static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1158                           struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1159                           struct ieee80211_key_conf *key)
1160 {
1161         struct rtl_priv *rtlpriv = rtl_priv(hw);
1162         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1163         u8 key_type = NO_ENCRYPTION;
1164         u8 key_idx;
1165         bool group_key = false;
1166         bool wep_only = false;
1167         int err = 0;
1168         u8 mac_addr[ETH_ALEN];
1169         u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1170
1171         if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
1172                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1173                          "not open hw encryption\n");
1174                 return -ENOSPC; /*User disabled HW-crypto */
1175         }
1176         /* To support IBSS, use sw-crypto for GTK */
1177         if (((vif->type == NL80211_IFTYPE_ADHOC) ||
1178              (vif->type == NL80211_IFTYPE_MESH_POINT)) &&
1179               !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
1180                 return -ENOSPC;
1181         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1182                  "%s hardware based encryption for keyidx: %d, mac: %pM\n",
1183                  cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
1184                  sta ? sta->addr : bcast_addr);
1185         rtlpriv->sec.being_setkey = true;
1186         rtl_ips_nic_on(hw);
1187         mutex_lock(&rtlpriv->locks.conf_mutex);
1188         /* <1> get encryption alg */
1189
1190         switch (key->cipher) {
1191         case WLAN_CIPHER_SUITE_WEP40:
1192                 key_type = WEP40_ENCRYPTION;
1193                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP40\n");
1194                 break;
1195         case WLAN_CIPHER_SUITE_WEP104:
1196                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP104\n");
1197                 key_type = WEP104_ENCRYPTION;
1198                 break;
1199         case WLAN_CIPHER_SUITE_TKIP:
1200                 key_type = TKIP_ENCRYPTION;
1201                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:TKIP\n");
1202                 break;
1203         case WLAN_CIPHER_SUITE_CCMP:
1204                 key_type = AESCCMP_ENCRYPTION;
1205                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CCMP\n");
1206                 break;
1207         case WLAN_CIPHER_SUITE_AES_CMAC:
1208                 /*HW doesn't support CMAC encryption, use software CMAC */
1209                 key_type = AESCMAC_ENCRYPTION;
1210                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CMAC\n");
1211                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1212                          "HW don't support CMAC encryption, use software CMAC\n");
1213                 err = -EOPNOTSUPP;
1214                 goto out_unlock;
1215         default:
1216                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "alg_err:%x!!!!\n",
1217                          key->cipher);
1218                 goto out_unlock;
1219         }
1220         if (key_type == WEP40_ENCRYPTION ||
1221                         key_type == WEP104_ENCRYPTION ||
1222                         mac->opmode == NL80211_IFTYPE_ADHOC)
1223                 rtlpriv->sec.use_defaultkey = true;
1224
1225         /* <2> get key_idx */
1226         key_idx = (u8) (key->keyidx);
1227         if (key_idx > 3)
1228                 goto out_unlock;
1229         /* <3> if pairwise key enable_hw_sec */
1230         group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
1231
1232         /* wep always be group key, but there are two conditions:
1233          * 1) wep only: is just for wep enc, in this condition
1234          * rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION
1235          * will be true & enable_hw_sec will be set when wep
1236          * key setting.
1237          * 2) wep(group) + AES(pairwise): some AP like cisco
1238          * may use it, in this condition enable_hw_sec will not
1239          * be set when wep key setting */
1240         /* we must reset sec_info after lingked before set key,
1241          * or some flag will be wrong*/
1242         if (vif->type == NL80211_IFTYPE_AP ||
1243             vif->type == NL80211_IFTYPE_MESH_POINT) {
1244                 if (!group_key || key_type == WEP40_ENCRYPTION ||
1245                         key_type == WEP104_ENCRYPTION) {
1246                         if (group_key)
1247                                 wep_only = true;
1248                         rtlpriv->cfg->ops->enable_hw_sec(hw);
1249                 }
1250         } else {
1251                 if ((!group_key) || (mac->opmode == NL80211_IFTYPE_ADHOC) ||
1252                      rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
1253                         if (rtlpriv->sec.pairwise_enc_algorithm ==
1254                             NO_ENCRYPTION &&
1255                             (key_type == WEP40_ENCRYPTION ||
1256                             key_type == WEP104_ENCRYPTION))
1257                                 wep_only = true;
1258                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1259                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1260                                  "set enable_hw_sec, key_type:%x(OPEN:0 WEP40:1 TKIP:2 AES:4 WEP104:5)\n",
1261                                  key_type);
1262                         rtlpriv->cfg->ops->enable_hw_sec(hw);
1263                 }
1264         }
1265         /* <4> set key based on cmd */
1266         switch (cmd) {
1267         case SET_KEY:
1268                 if (wep_only) {
1269                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1270                                  "set WEP(group/pairwise) key\n");
1271                         /* Pairwise key with an assigned MAC address. */
1272                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1273                         rtlpriv->sec.group_enc_algorithm = key_type;
1274                         /*set local buf about wep key. */
1275                         memcpy(rtlpriv->sec.key_buf[key_idx],
1276                                key->key, key->keylen);
1277                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1278                         eth_zero_addr(mac_addr);
1279                 } else if (group_key) { /* group key */
1280                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1281                                  "set group key\n");
1282                         /* group key */
1283                         rtlpriv->sec.group_enc_algorithm = key_type;
1284                         /*set local buf about group key. */
1285                         memcpy(rtlpriv->sec.key_buf[key_idx],
1286                                key->key, key->keylen);
1287                         rtlpriv->sec.key_len[key_idx] = key->keylen;
1288                         memcpy(mac_addr, bcast_addr, ETH_ALEN);
1289                 } else {        /* pairwise key */
1290                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1291                                  "set pairwise key\n");
1292                         if (!sta) {
1293                                 RT_ASSERT(false,
1294                                           "pairwise key without mac_addr\n");
1295
1296                                 err = -EOPNOTSUPP;
1297                                 goto out_unlock;
1298                         }
1299                         /* Pairwise key with an assigned MAC address. */
1300                         rtlpriv->sec.pairwise_enc_algorithm = key_type;
1301                         /*set local buf about pairwise key. */
1302                         memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
1303                                key->key, key->keylen);
1304                         rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
1305                         rtlpriv->sec.pairwise_key =
1306                             rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
1307                         memcpy(mac_addr, sta->addr, ETH_ALEN);
1308                 }
1309                 rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
1310                                            group_key, key_type, wep_only,
1311                                            false);
1312                 /* <5> tell mac80211 do something: */
1313                 /*must use sw generate IV, or can not work !!!!. */
1314                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1315                 key->hw_key_idx = key_idx;
1316                 if (key_type == TKIP_ENCRYPTION)
1317                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1318                 /*use software CCMP encryption for management frames (MFP) */
1319                 if (key_type == AESCCMP_ENCRYPTION)
1320                         key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1321                 break;
1322         case DISABLE_KEY:
1323                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1324                          "disable key delete one entry\n");
1325                 /*set local buf about wep key. */
1326                 if (vif->type == NL80211_IFTYPE_AP ||
1327                     vif->type == NL80211_IFTYPE_MESH_POINT) {
1328                         if (sta)
1329                                 rtl_cam_del_entry(hw, sta->addr);
1330                 }
1331                 memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
1332                 rtlpriv->sec.key_len[key_idx] = 0;
1333                 eth_zero_addr(mac_addr);
1334                 /*
1335                  *mac80211 will delete entrys one by one,
1336                  *so don't use rtl_cam_reset_all_entry
1337                  *or clear all entry here.
1338                  */
1339                 rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
1340
1341                 rtl_cam_reset_sec_info(hw);
1342
1343                 break;
1344         default:
1345                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1346                          "cmd_err:%x!!!!\n", cmd);
1347         }
1348 out_unlock:
1349         mutex_unlock(&rtlpriv->locks.conf_mutex);
1350         rtlpriv->sec.being_setkey = false;
1351         return err;
1352 }
1353
1354 static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
1355 {
1356         struct rtl_priv *rtlpriv = rtl_priv(hw);
1357
1358         bool radio_state;
1359         bool blocked;
1360         u8 valid = 0;
1361
1362         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1363                 return;
1364
1365         mutex_lock(&rtlpriv->locks.conf_mutex);
1366
1367         /*if Radio On return true here */
1368         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
1369
1370         if (valid) {
1371                 if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
1372                         rtlpriv->rfkill.rfkill_state = radio_state;
1373
1374                         RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
1375                                  "wireless radio switch turned %s\n",
1376                                  radio_state ? "on" : "off");
1377
1378                         blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
1379                         wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
1380                 }
1381         }
1382
1383         mutex_unlock(&rtlpriv->locks.conf_mutex);
1384 }
1385
1386 /* this function is called by mac80211 to flush tx buffer
1387  * before switch channel or power save, or tx buffer packet
1388  * maybe send after offchannel or rf sleep, this may cause
1389  * dis-association by AP */
1390 static void rtl_op_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1391 {
1392         struct rtl_priv *rtlpriv = rtl_priv(hw);
1393
1394         if (rtlpriv->intf_ops->flush)
1395                 rtlpriv->intf_ops->flush(hw, drop);
1396 }
1397
1398 const struct ieee80211_ops rtl_ops = {
1399         .start = rtl_op_start,
1400         .stop = rtl_op_stop,
1401         .tx = rtl_op_tx,
1402         .add_interface = rtl_op_add_interface,
1403         .remove_interface = rtl_op_remove_interface,
1404         .change_interface = rtl_op_change_interface,
1405         .config = rtl_op_config,
1406         .configure_filter = rtl_op_configure_filter,
1407         .sta_add = rtl_op_sta_add,
1408         .sta_remove = rtl_op_sta_remove,
1409         .set_key = rtl_op_set_key,
1410         .conf_tx = rtl_op_conf_tx,
1411         .bss_info_changed = rtl_op_bss_info_changed,
1412         .get_tsf = rtl_op_get_tsf,
1413         .set_tsf = rtl_op_set_tsf,
1414         .reset_tsf = rtl_op_reset_tsf,
1415         .sta_notify = rtl_op_sta_notify,
1416         .ampdu_action = rtl_op_ampdu_action,
1417         .sw_scan_start = rtl_op_sw_scan_start,
1418         .sw_scan_complete = rtl_op_sw_scan_complete,
1419         .rfkill_poll = rtl_op_rfkill_poll,
1420         .flush = rtl_op_flush,
1421 };
1422 EXPORT_SYMBOL_GPL(rtl_ops);