drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2010  Realtek Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * The full GNU General Public License is included in this distribution in the
  15  * file called LICENSE.
  16  *
  17  * Contact Information:
  18  * wlanfae <wlanfae@realtek.com>
  19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  20  * Hsinchu 300, Taiwan.
  21  *
  22  * Larry Finger <Larry.Finger@lwfinger.net>
  23  *
  24  *****************************************************************************/
  25
  26 #include "../wifi.h"
  27 #include "../pci.h"
  28 #include "../base.h"
  29 #include "../stats.h"
  30 #include "reg.h"
  31 #include "def.h"
  32 #include "phy.h"
  33 #include "trx.h"
  34 #include "led.h"
  35 #include "dm.h"
  36 #include "phy.h"
  37 #include "fw.h"
  38
  39 static u8 _rtl8821ae_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
  40 {
  41         __le16 fc = rtl_get_fc(skb);
  42
  43         if (unlikely(ieee80211_is_beacon(fc)))
  44                 return QSLT_BEACON;
  45         if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  46                 return QSLT_MGNT;
  47
  48         return skb->priority;
  49 }
  50
  51 static u16 odm_cfo(s8 value)
  52 {
  53         int ret_val;
  54
  55         if (value < 0) {
  56                 ret_val = 0 - value;
  57                 ret_val = (ret_val << 1) + (ret_val >> 1);
  58                 /* set bit12 as 1 for negative cfo */
  59                 ret_val = ret_val | BIT(12);
  60         } else {
  61                 ret_val = value;
  62                 ret_val = (ret_val << 1) + (ret_val >> 1);
  63         }
  64         return ret_val;
  65 }
  66
  67 static u8 _rtl8821ae_evm_dbm_jaguar(s8 value)
  68 {
  69         s8 ret_val = value;
  70
  71         /* -33dB~0dB to 33dB ~ 0dB*/
  72         if (ret_val == -128)
  73                 ret_val = 127;
  74         else if (ret_val < 0)
  75                 ret_val = 0 - ret_val;
  76
  77         ret_val  = ret_val >> 1;
  78         return ret_val;
  79 }
  80
  81 static void query_rxphystatus(struct ieee80211_hw *hw,
  82                               struct rtl_stats *pstatus, u8 *pdesc,
  83                               struct rx_fwinfo_8821ae *p_drvinfo,
  84                               bool bpacket_match_bssid,
  85                               bool bpacket_toself, bool packet_beacon)
  86 {
  87         struct rtl_priv *rtlpriv = rtl_priv(hw);
  88         struct phy_status_rpt *p_phystrpt = (struct phy_status_rpt *)p_drvinfo;
  89         struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
  90         struct rtl_phy *rtlphy = &rtlpriv->phy;
  91         s8 rx_pwr_all = 0, rx_pwr[4];
  92         u8 rf_rx_num = 0, evm, evmdbm, pwdb_all;
  93         u8 i, max_spatial_stream;
  94         u32 rssi, total_rssi = 0;
  95         bool is_cck = pstatus->is_cck;
  96         u8 lan_idx, vga_idx;
  97
  98         /* Record it for next packet processing */
  99         pstatus->packet_matchbssid = bpacket_match_bssid;
 100         pstatus->packet_toself = bpacket_toself;
 101         pstatus->packet_beacon = packet_beacon;
 102         pstatus->rx_mimo_signalquality[0] = -1;
 103         pstatus->rx_mimo_signalquality[1] = -1;
 104
 105         if (is_cck) {
 106                 u8 cck_highpwr;
 107                 u8 cck_agc_rpt;
 108
 109                 cck_agc_rpt = p_phystrpt->cfosho[0];
 110
 111                 /* (1)Hardware does not provide RSSI for CCK
 112                  * (2)PWDB, Average PWDB cacluated by
 113                  * hardware (for rate adaptive)
 114                  */
 115                 cck_highpwr = (u8)rtlphy->cck_high_power;
 116
 117                 lan_idx = ((cck_agc_rpt & 0xE0) >> 5);
 118                 vga_idx = (cck_agc_rpt & 0x1f);
 119                 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE) {
 120                         switch (lan_idx) {
 121                         case 7:
 122                                 if (vga_idx <= 27)
 123                                         /*VGA_idx = 27~2*/
 124                                         rx_pwr_all = -100 + 2*(27-vga_idx);
 125                                 else
 126                                         rx_pwr_all = -100;
 127                                 break;
 128                         case 6:
 129                                 /*VGA_idx = 2~0*/
 130                                 rx_pwr_all = -48 + 2*(2-vga_idx);
 131                                 break;
 132                         case 5:
 133                                 /*VGA_idx = 7~5*/
 134                                 rx_pwr_all = -42 + 2*(7-vga_idx);
 135                                 break;
 136                         case 4:
 137                                 /*VGA_idx = 7~4*/
 138                                 rx_pwr_all = -36 + 2*(7-vga_idx);
 139                                 break;
 140                         case 3:
 141                                 /*VGA_idx = 7~0*/
 142                                 rx_pwr_all = -24 + 2*(7-vga_idx);
 143                                 break;
 144                         case 2:
 145                                 if (cck_highpwr)
 146                                         /*VGA_idx = 5~0*/
 147                                         rx_pwr_all = -12 + 2*(5-vga_idx);
 148                                 else
 149                                         rx_pwr_all = -6 + 2*(5-vga_idx);
 150                                 break;
 151                         case 1:
 152                                 rx_pwr_all = 8-2*vga_idx;
 153                                 break;
 154                         case 0:
 155                                 rx_pwr_all = 14-2*vga_idx;
 156                                 break;
 157                         default:
 158                                 break;
 159                         }
 160                         rx_pwr_all += 6;
 161                         pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 162                         if (!cck_highpwr) {
 163                                 if (pwdb_all >= 80)
 164                                         pwdb_all =
 165                                           ((pwdb_all - 80)<<1) +
 166                                          ((pwdb_all - 80)>>1) + 80;
 167                                 else if ((pwdb_all <= 78) && (pwdb_all >= 20))
 168                                         pwdb_all += 3;
 169                                 if (pwdb_all > 100)
 170                                         pwdb_all = 100;
 171                         }
 172                 } else { /* 8821 */
 173                         s8 pout = -6;
 174
 175                         switch (lan_idx) {
 176                         case 5:
 177                                 rx_pwr_all = pout - 32 - (2*vga_idx);
 178                                         break;
 179                         case 4:
 180                                 rx_pwr_all = pout - 24 - (2*vga_idx);
 181                                         break;
 182                         case 2:
 183                                 rx_pwr_all = pout - 11 - (2*vga_idx);
 184                                         break;
 185                         case 1:
 186                                 rx_pwr_all = pout + 5 - (2*vga_idx);
 187                                         break;
 188                         case 0:
 189                                 rx_pwr_all = pout + 21 - (2*vga_idx);
 190                                         break;
 191                         }
 192                         pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 193                 }
 194
 195                 pstatus->rx_pwdb_all = pwdb_all;
 196                 pstatus->recvsignalpower = rx_pwr_all;
 197
 198                 /* (3) Get Signal Quality (EVM) */
 199                 if (bpacket_match_bssid) {
 200                         u8 sq;
 201
 202                         if (pstatus->rx_pwdb_all > 40) {
 203                                 sq = 100;
 204                         } else {
 205                                 sq = p_phystrpt->pwdb_all;
 206                                 if (sq > 64)
 207                                         sq = 0;
 208                                 else if (sq < 20)
 209                                         sq = 100;
 210                                 else
 211                                         sq = ((64 - sq) * 100) / 44;
 212                         }
 213
 214                         pstatus->signalquality = sq;
 215                         pstatus->rx_mimo_signalquality[0] = sq;
 216                         pstatus->rx_mimo_signalquality[1] = -1;
 217                 }
 218         } else {
 219                 /* (1)Get RSSI for HT rate */
 220                 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
 221                         /* we will judge RF RX path now. */
 222                         if (rtlpriv->dm.rfpath_rxenable[i])
 223                                 rf_rx_num++;
 224
 225                         rx_pwr[i] = (p_phystrpt->gain_trsw[i] & 0x7f) - 110;
 226
 227                         /* Translate DBM to percentage. */
 228                         rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
 229                         total_rssi += rssi;
 230
 231                         /* Get Rx snr value in DB */
 232                         pstatus->rx_snr[i] = p_phystrpt->rxsnr[i] / 2;
 233                         rtlpriv->stats.rx_snr_db[i] = p_phystrpt->rxsnr[i] / 2;
 234
 235                         pstatus->cfo_short[i] = odm_cfo(p_phystrpt->cfosho[i]);
 236                         pstatus->cfo_tail[i] = odm_cfo(p_phystrpt->cfotail[i]);
 237                         /* Record Signal Strength for next packet */
 238                         pstatus->rx_mimo_signalstrength[i] = (u8)rssi;
 239                 }
 240
 241                 /* (2)PWDB, Average PWDB cacluated by
 242                  * hardware (for rate adaptive)
 243                  */
 244                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 245
 246                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 247                 pstatus->rx_pwdb_all = pwdb_all;
 248                 pstatus->rxpower = rx_pwr_all;
 249                 pstatus->recvsignalpower = rx_pwr_all;
 250
 251                 /* (3)EVM of HT rate */
 252                 if ((pstatus->is_ht && pstatus->rate >= DESC_RATEMCS8 &&
 253                      pstatus->rate <= DESC_RATEMCS15) ||
 254                     (pstatus->is_vht &&
 255                      pstatus->rate >= DESC_RATEVHT2SS_MCS0 &&
 256                      pstatus->rate <= DESC_RATEVHT2SS_MCS9))
 257                         max_spatial_stream = 2;
 258                 else
 259                         max_spatial_stream = 1;
 260
 261                 for (i = 0; i < max_spatial_stream; i++) {
 262                         evm = rtl_evm_db_to_percentage(p_phystrpt->rxevm[i]);
 263                         evmdbm = _rtl8821ae_evm_dbm_jaguar(p_phystrpt->rxevm[i]);
 264
 265                         if (bpacket_match_bssid) {
 266                                 /* Fill value in RFD, Get the first
 267                                  * spatial stream only
 268                                  */
 269                                 if (i == 0)
 270                                         pstatus->signalquality = evm;
 271                                 pstatus->rx_mimo_signalquality[i] = evm;
 272                                 pstatus->rx_mimo_evm_dbm[i] = evmdbm;
 273                         }
 274                 }
 275                 if (bpacket_match_bssid) {
 276                         for (i = RF90_PATH_A; i <= RF90_PATH_B; i++)
 277                                 rtl_priv(hw)->dm.cfo_tail[i] =
 278                                         (s8)p_phystrpt->cfotail[i];
 279
 280                         rtl_priv(hw)->dm.packet_count++;
 281                 }
 282         }
 283
 284         /* UI BSS List signal strength(in percentage),
 285          * make it good looking, from 0~100.
 286          */
 287         if (is_cck)
 288                 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 289                         pwdb_all));
 290         else if (rf_rx_num != 0)
 291                 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 292                         total_rssi /= rf_rx_num));
 293         /*HW antenna diversity*/
 294         rtldm->fat_table.antsel_rx_keep_0 = p_phystrpt->antidx_anta;
 295         rtldm->fat_table.antsel_rx_keep_1 = p_phystrpt->antidx_antb;
 296 }
 297
 298 static void translate_rx_signal_stuff(struct ieee80211_hw *hw,
 299                                       struct sk_buff *skb,
 300                                       struct rtl_stats *pstatus, u8 *pdesc,
 301                                       struct rx_fwinfo_8821ae *p_drvinfo)
 302 {
 303         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 304         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 305         struct ieee80211_hdr *hdr;
 306         u8 *tmp_buf;
 307         u8 *praddr;
 308         u8 *psaddr;
 309         __le16 fc;
 310         u16 type;
 311         bool packet_matchbssid, packet_toself, packet_beacon;
 312
 313         tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift;
 314
 315         hdr = (struct ieee80211_hdr *)tmp_buf;
 316         fc = hdr->frame_control;
 317         type = WLAN_FC_GET_TYPE(hdr->frame_control);
 318         praddr = hdr->addr1;
 319         psaddr = ieee80211_get_SA(hdr);
 320         ether_addr_copy(pstatus->psaddr, psaddr);
 321
 322         packet_matchbssid = (!ieee80211_is_ctl(fc) &&
 323                              (ether_addr_equal(mac->bssid,
 324                                                ieee80211_has_tods(fc) ?
 325                                                hdr->addr1 :
 326                                                ieee80211_has_fromds(fc) ?
 327                                                hdr->addr2 : hdr->addr3)) &&
 328                               (!pstatus->hwerror) &&
 329                               (!pstatus->crc) && (!pstatus->icv));
 330
 331         packet_toself = packet_matchbssid &&
 332             (ether_addr_equal(praddr, rtlefuse->dev_addr));
 333
 334         if (ieee80211_is_beacon(hdr->frame_control))
 335                 packet_beacon = true;
 336         else
 337                 packet_beacon = false;
 338
 339         if (packet_beacon && packet_matchbssid)
 340                 rtl_priv(hw)->dm.dbginfo.num_qry_beacon_pkt++;
 341
 342         if (packet_matchbssid &&
 343             ieee80211_is_data_qos(hdr->frame_control) &&
 344             !is_multicast_ether_addr(ieee80211_get_DA(hdr))) {
 345                 struct ieee80211_qos_hdr *hdr_qos =
 346                         (struct ieee80211_qos_hdr *)tmp_buf;
 347                 u16 tid = le16_to_cpu(hdr_qos->qos_ctrl) & 0xf;
 348
 349                 if (tid != 0 && tid != 3)
 350                         rtl_priv(hw)->dm.dbginfo.num_non_be_pkt++;
 351         }
 352
 353         query_rxphystatus(hw, pstatus, pdesc, p_drvinfo,
 354                           packet_matchbssid, packet_toself,
 355                           packet_beacon);
 356         /*_rtl8821ae_smart_antenna(hw, pstatus); */
 357         rtl_process_phyinfo(hw, tmp_buf, pstatus);
 358 }
 359
 360 static void _rtl8821ae_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
 361                                         u8 *virtualaddress)
 362 {
 363         u32 dwtmp = 0;
 364
 365         memset(virtualaddress, 0, 8);
 366
 367         SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
 368         if (ptcb_desc->empkt_num == 1) {
 369                 dwtmp = ptcb_desc->empkt_len[0];
 370         } else {
 371                 dwtmp = ptcb_desc->empkt_len[0];
 372                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 373                 dwtmp += ptcb_desc->empkt_len[1];
 374         }
 375         SET_EARLYMODE_LEN0(virtualaddress, dwtmp);
 376
 377         if (ptcb_desc->empkt_num <= 3) {
 378                 dwtmp = ptcb_desc->empkt_len[2];
 379         } else {
 380                 dwtmp = ptcb_desc->empkt_len[2];
 381                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 382                 dwtmp += ptcb_desc->empkt_len[3];
 383         }
 384         SET_EARLYMODE_LEN1(virtualaddress, dwtmp);
 385         if (ptcb_desc->empkt_num <= 5) {
 386                 dwtmp = ptcb_desc->empkt_len[4];
 387         } else {
 388                 dwtmp = ptcb_desc->empkt_len[4];
 389                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 390                 dwtmp += ptcb_desc->empkt_len[5];
 391         }
 392         SET_EARLYMODE_LEN2_1(virtualaddress, dwtmp & 0xF);
 393         SET_EARLYMODE_LEN2_2(virtualaddress, dwtmp >> 4);
 394         if (ptcb_desc->empkt_num <= 7) {
 395                 dwtmp = ptcb_desc->empkt_len[6];
 396         } else {
 397                 dwtmp = ptcb_desc->empkt_len[6];
 398                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 399                 dwtmp += ptcb_desc->empkt_len[7];
 400         }
 401         SET_EARLYMODE_LEN3(virtualaddress, dwtmp);
 402         if (ptcb_desc->empkt_num <= 9) {
 403                 dwtmp = ptcb_desc->empkt_len[8];
 404         } else {
 405                 dwtmp = ptcb_desc->empkt_len[8];
 406                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 407                 dwtmp += ptcb_desc->empkt_len[9];
 408         }
 409         SET_EARLYMODE_LEN4(virtualaddress, dwtmp);
 410 }
 411
 412 static bool rtl8821ae_get_rxdesc_is_ht(struct ieee80211_hw *hw, u8 *pdesc)
 413 {
 414         struct rtl_priv *rtlpriv = rtl_priv(hw);
 415         u8 rx_rate = 0;
 416
 417         rx_rate = GET_RX_DESC_RXMCS(pdesc);
 418
 419         RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate);
 420
 421         if ((rx_rate >= DESC_RATEMCS0) && (rx_rate <= DESC_RATEMCS15))
 422                 return true;
 423         return false;
 424 }
 425
 426 static bool rtl8821ae_get_rxdesc_is_vht(struct ieee80211_hw *hw, u8 *pdesc)
 427 {
 428         struct rtl_priv *rtlpriv = rtl_priv(hw);
 429         u8 rx_rate = 0;
 430
 431         rx_rate = GET_RX_DESC_RXMCS(pdesc);
 432
 433         RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate);
 434
 435         if (rx_rate >= DESC_RATEVHT1SS_MCS0)
 436                 return true;
 437         return false;
 438 }
 439
 440 static u8 rtl8821ae_get_rx_vht_nss(struct ieee80211_hw *hw, u8 *pdesc)
 441 {
 442         u8 rx_rate = 0;
 443         u8 vht_nss = 0;
 444
 445         rx_rate = GET_RX_DESC_RXMCS(pdesc);
 446         if ((rx_rate >= DESC_RATEVHT1SS_MCS0) &&
 447             (rx_rate <= DESC_RATEVHT1SS_MCS9))
 448                 vht_nss = 1;
 449         else if ((rx_rate >= DESC_RATEVHT2SS_MCS0) &&
 450                  (rx_rate <= DESC_RATEVHT2SS_MCS9))
 451                 vht_nss = 2;
 452
 453         return vht_nss;
 454 }
 455
 456 bool rtl8821ae_rx_query_desc(struct ieee80211_hw *hw,
 457                              struct rtl_stats *status,
 458                              struct ieee80211_rx_status *rx_status,
 459                              u8 *pdesc, struct sk_buff *skb)
 460 {
 461         struct rtl_priv *rtlpriv = rtl_priv(hw);
 462         struct rx_fwinfo_8821ae *p_drvinfo;
 463         struct ieee80211_hdr *hdr;
 464
 465         u32 phystatus = GET_RX_DESC_PHYST(pdesc);
 466
 467         status->length = (u16)GET_RX_DESC_PKT_LEN(pdesc);
 468         status->rx_drvinfo_size = (u8)GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
 469             RX_DRV_INFO_SIZE_UNIT;
 470         status->rx_bufshift = (u8)(GET_RX_DESC_SHIFT(pdesc) & 0x03);
 471         status->icv = (u16)GET_RX_DESC_ICV(pdesc);
 472         status->crc = (u16)GET_RX_DESC_CRC32(pdesc);
 473         status->hwerror = (status->crc | status->icv);
 474         status->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 475         status->rate = (u8)GET_RX_DESC_RXMCS(pdesc);
 476         status->shortpreamble = (u16)GET_RX_DESC_SPLCP(pdesc);
 477         status->isampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1);
 478         status->isfirst_ampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1);
 479         status->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 480         status->rx_packet_bw = GET_RX_DESC_BW(pdesc);
 481         status->macid = GET_RX_DESC_MACID(pdesc);
 482         status->is_short_gi = !(bool)GET_RX_DESC_SPLCP(pdesc);
 483         status->is_ht = rtl8821ae_get_rxdesc_is_ht(hw, pdesc);
 484         status->is_vht = rtl8821ae_get_rxdesc_is_vht(hw, pdesc);
 485         status->vht_nss = rtl8821ae_get_rx_vht_nss(hw, pdesc);
 486         status->is_cck = RTL8821AE_RX_HAL_IS_CCK_RATE(status->rate);
 487
 488         RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
 489                  "rx_packet_bw=%s,is_ht %d, is_vht %d, vht_nss=%d,is_short_gi %d.\n",
 490                  (status->rx_packet_bw == 2) ? "80M" :
 491                  (status->rx_packet_bw == 1) ? "40M" : "20M",
 492                  status->is_ht, status->is_vht, status->vht_nss,
 493                  status->is_short_gi);
 494
 495         if (GET_RX_STATUS_DESC_RPT_SEL(pdesc))
 496                 status->packet_report_type = C2H_PACKET;
 497         else
 498                 status->packet_report_type = NORMAL_RX;
 499
 500         if (GET_RX_STATUS_DESC_PATTERN_MATCH(pdesc))
 501                 status->wake_match = BIT(2);
 502         else if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc))
 503                 status->wake_match = BIT(1);
 504         else if (GET_RX_STATUS_DESC_UNICAST_MATCH(pdesc))
 505                 status->wake_match = BIT(0);
 506         else
 507                 status->wake_match = 0;
 508
 509         if (status->wake_match)
 510                 RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
 511                          "GGGGGGGGGGGGGet Wakeup Packet!! WakeMatch=%d\n",
 512                          status->wake_match);
 513         rx_status->freq = hw->conf.chandef.chan->center_freq;
 514         rx_status->band = hw->conf.chandef.chan->band;
 515
 516         hdr = (struct ieee80211_hdr *)(skb->data +
 517               status->rx_drvinfo_size + status->rx_bufshift);
 518
 519         if (status->crc)
 520                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 521
 522         if (status->rx_packet_bw == HT_CHANNEL_WIDTH_20_40)
 523                 rx_status->bw = RATE_INFO_BW_40;
 524         else if (status->rx_packet_bw == HT_CHANNEL_WIDTH_80)
 525                 rx_status->bw = RATE_INFO_BW_80;
 526         if (status->is_ht)
 527                 rx_status->encoding = RX_ENC_HT;
 528         if (status->is_vht)
 529                 rx_status->encoding = RX_ENC_VHT;
 530
 531         if (status->is_short_gi)
 532                 rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
 533
 534         rx_status->nss = status->vht_nss;
 535         rx_status->flag |= RX_FLAG_MACTIME_START;
 536
 537         /* hw will set status->decrypted true, if it finds the
 538          * frame is open data frame or mgmt frame.
 539          * So hw will not decryption robust managment frame
 540          * for IEEE80211w but still set status->decrypted
 541          * true, so here we should set it back to undecrypted
 542          * for IEEE80211w frame, and mac80211 sw will help
 543          * to decrypt it
 544          */
 545         if (status->decrypted) {
 546                 if ((!_ieee80211_is_robust_mgmt_frame(hdr)) &&
 547                     (ieee80211_has_protected(hdr->frame_control)))
 548                         rx_status->flag |= RX_FLAG_DECRYPTED;
 549                 else
 550                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 551         }
 552
 553         /* rate_idx: index of data rate into band's
 554          * supported rates or MCS index if HT rates
 555          * are use (RX_FLAG_HT)
 556          */
 557         rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht,
 558                                                    status->is_vht,
 559                                                    status->rate);
 560
 561         rx_status->mactime = status->timestamp_low;
 562         if (phystatus) {
 563                 p_drvinfo = (struct rx_fwinfo_8821ae *)(skb->data +
 564                             status->rx_bufshift);
 565
 566                 translate_rx_signal_stuff(hw, skb, status, pdesc, p_drvinfo);
 567         }
 568         rx_status->signal = status->recvsignalpower + 10;
 569         if (status->packet_report_type == TX_REPORT2) {
 570                 status->macid_valid_entry[0] =
 571                   GET_RX_RPT2_DESC_MACID_VALID_1(pdesc);
 572                 status->macid_valid_entry[1] =
 573                   GET_RX_RPT2_DESC_MACID_VALID_2(pdesc);
 574         }
 575         return true;
 576 }
 577
 578 static u8 rtl8821ae_bw_mapping(struct ieee80211_hw *hw,
 579                                struct rtl_tcb_desc *ptcb_desc)
 580 {
 581         struct rtl_priv *rtlpriv = rtl_priv(hw);
 582         struct rtl_phy *rtlphy = &rtlpriv->phy;
 583         u8 bw_setting_of_desc = 0;
 584
 585         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 586                  "rtl8821ae_bw_mapping, current_chan_bw %d, packet_bw %d\n",
 587                  rtlphy->current_chan_bw, ptcb_desc->packet_bw);
 588
 589         if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
 590                 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80)
 591                         bw_setting_of_desc = 2;
 592                 else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40)
 593                         bw_setting_of_desc = 1;
 594                 else
 595                         bw_setting_of_desc = 0;
 596         } else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
 597                 if ((ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) ||
 598                     (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80))
 599                         bw_setting_of_desc = 1;
 600                 else
 601                         bw_setting_of_desc = 0;
 602         } else {
 603                 bw_setting_of_desc = 0;
 604         }
 605         return bw_setting_of_desc;
 606 }
 607
 608 static u8 rtl8821ae_sc_mapping(struct ieee80211_hw *hw,
 609                                struct rtl_tcb_desc *ptcb_desc)
 610 {
 611         struct rtl_priv *rtlpriv = rtl_priv(hw);
 612         struct rtl_phy *rtlphy = &rtlpriv->phy;
 613         struct rtl_mac *mac = rtl_mac(rtlpriv);
 614         u8 sc_setting_of_desc = 0;
 615
 616         if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
 617                 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80) {
 618                         sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
 619                 } else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
 620                         if (mac->cur_80_prime_sc ==
 621                             HAL_PRIME_CHNL_OFFSET_LOWER)
 622                                 sc_setting_of_desc =
 623                                         VHT_DATA_SC_40_LOWER_OF_80MHZ;
 624                         else if (mac->cur_80_prime_sc ==
 625                                  HAL_PRIME_CHNL_OFFSET_UPPER)
 626                                 sc_setting_of_desc =
 627                                         VHT_DATA_SC_40_UPPER_OF_80MHZ;
 628                         else
 629                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
 630                                          "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n");
 631                 } else {
 632                         if ((mac->cur_40_prime_sc ==
 633                              HAL_PRIME_CHNL_OFFSET_LOWER) &&
 634                             (mac->cur_80_prime_sc  ==
 635                              HAL_PRIME_CHNL_OFFSET_LOWER))
 636                                 sc_setting_of_desc =
 637                                         VHT_DATA_SC_20_LOWEST_OF_80MHZ;
 638                         else if ((mac->cur_40_prime_sc ==
 639                                   HAL_PRIME_CHNL_OFFSET_UPPER) &&
 640                                  (mac->cur_80_prime_sc ==
 641                                   HAL_PRIME_CHNL_OFFSET_LOWER))
 642                                 sc_setting_of_desc =
 643                                         VHT_DATA_SC_20_LOWER_OF_80MHZ;
 644                         else if ((mac->cur_40_prime_sc ==
 645                                   HAL_PRIME_CHNL_OFFSET_LOWER) &&
 646                                  (mac->cur_80_prime_sc ==
 647                                   HAL_PRIME_CHNL_OFFSET_UPPER))
 648                                 sc_setting_of_desc =
 649                                         VHT_DATA_SC_20_UPPER_OF_80MHZ;
 650                         else if ((mac->cur_40_prime_sc ==
 651                                   HAL_PRIME_CHNL_OFFSET_UPPER) &&
 652                                  (mac->cur_80_prime_sc ==
 653                                   HAL_PRIME_CHNL_OFFSET_UPPER))
 654                                 sc_setting_of_desc =
 655                                         VHT_DATA_SC_20_UPPERST_OF_80MHZ;
 656                         else
 657                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
 658                                          "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n");
 659                 }
 660         } else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
 661                 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
 662                         sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
 663                 } else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20) {
 664                         if (mac->cur_40_prime_sc ==
 665                                 HAL_PRIME_CHNL_OFFSET_UPPER) {
 666                                 sc_setting_of_desc =
 667                                         VHT_DATA_SC_20_UPPER_OF_80MHZ;
 668                         } else if (mac->cur_40_prime_sc ==
 669                                 HAL_PRIME_CHNL_OFFSET_LOWER){
 670                                 sc_setting_of_desc =
 671                                         VHT_DATA_SC_20_LOWER_OF_80MHZ;
 672                         } else {
 673                                 sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
 674                         }
 675                 }
 676         } else {
 677                 sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
 678         }
 679
 680         return sc_setting_of_desc;
 681 }
 682
 683 void rtl8821ae_tx_fill_desc(struct ieee80211_hw *hw,
 684                             struct ieee80211_hdr *hdr, u8 *pdesc_tx, u8 *txbd,
 685                             struct ieee80211_tx_info *info,
 686                             struct ieee80211_sta *sta,
 687                             struct sk_buff *skb,
 688                             u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 689 {
 690         struct rtl_priv *rtlpriv = rtl_priv(hw);
 691         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 692         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 693         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 694         struct rtlwifi_tx_info *tx_info = rtl_tx_skb_cb_info(skb);
 695         u8 *pdesc = (u8 *)pdesc_tx;
 696         u16 seq_number;
 697         __le16 fc = hdr->frame_control;
 698         unsigned int buf_len = 0;
 699         unsigned int skb_len = skb->len;
 700         u8 fw_qsel = _rtl8821ae_map_hwqueue_to_fwqueue(skb, hw_queue);
 701         bool firstseg = ((hdr->seq_ctrl &
 702                           cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 703         bool lastseg = ((hdr->frame_control &
 704                          cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 705         dma_addr_t mapping;
 706         u8 short_gi = 0;
 707
 708         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 709         rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 710         /* reserve 8 byte for AMPDU early mode */
 711         if (rtlhal->earlymode_enable) {
 712                 skb_push(skb, EM_HDR_LEN);
 713                 memset(skb->data, 0, EM_HDR_LEN);
 714         }
 715         buf_len = skb->len;
 716         mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 717                                  PCI_DMA_TODEVICE);
 718         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 719                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 720                          "DMA mapping error\n");
 721                 return;
 722         }
 723         CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_8821ae));
 724         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 725                 firstseg = true;
 726                 lastseg = true;
 727         }
 728         if (firstseg) {
 729                 if (rtlhal->earlymode_enable) {
 730                         SET_TX_DESC_PKT_OFFSET(pdesc, 1);
 731                         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN +
 732                                            EM_HDR_LEN);
 733                         if (ptcb_desc->empkt_num) {
 734                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 735                                          "Insert 8 byte.pTcb->EMPktNum:%d\n",
 736                                           ptcb_desc->empkt_num);
 737                                 _rtl8821ae_insert_emcontent(ptcb_desc,
 738                                          (u8 *)(skb->data));
 739                         }
 740                 } else {
 741                         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 742                 }
 743
 744
 745                 /* ptcb_desc->use_driver_rate = true; */
 746                 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
 747                 if (ptcb_desc->hw_rate > DESC_RATEMCS0)
 748                         short_gi = (ptcb_desc->use_shortgi) ? 1 : 0;
 749                 else
 750                         short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0;
 751
 752                 SET_TX_DESC_DATA_SHORTGI(pdesc, short_gi);
 753
 754                 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 755                         SET_TX_DESC_AGG_ENABLE(pdesc, 1);
 756                         SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x1f);
 757                 }
 758                 SET_TX_DESC_SEQ(pdesc, seq_number);
 759                 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
 760                                         !ptcb_desc->cts_enable) ? 1 : 0));
 761                 SET_TX_DESC_HW_RTS_ENABLE(pdesc, 0);
 762                 SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
 763
 764                 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
 765                 SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc);
 766                 SET_TX_DESC_RTS_SHORT(pdesc,
 767                         ((ptcb_desc->rts_rate <= DESC_RATE54M) ?
 768                         (ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
 769                         (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 770
 771                 if (ptcb_desc->tx_enable_sw_calc_duration)
 772                         SET_TX_DESC_NAV_USE_HDR(pdesc, 1);
 773
 774                 SET_TX_DESC_DATA_BW(pdesc,
 775                         rtl8821ae_bw_mapping(hw, ptcb_desc));
 776
 777                 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 778                         rtl8821ae_sc_mapping(hw, ptcb_desc));
 779
 780                 SET_TX_DESC_LINIP(pdesc, 0);
 781                 SET_TX_DESC_PKT_SIZE(pdesc, (u16)skb_len);
 782                 if (sta) {
 783                         u8 ampdu_density = sta->ht_cap.ampdu_density;
 784
 785                         SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
 786                 }
 787                 if (info->control.hw_key) {
 788                         struct ieee80211_key_conf *keyconf =
 789                                 info->control.hw_key;
 790                         switch (keyconf->cipher) {
 791                         case WLAN_CIPHER_SUITE_WEP40:
 792                         case WLAN_CIPHER_SUITE_WEP104:
 793                         case WLAN_CIPHER_SUITE_TKIP:
 794                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 795                                 break;
 796                         case WLAN_CIPHER_SUITE_CCMP:
 797                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 798                                 break;
 799                         default:
 800                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 801                                 break;
 802                         }
 803                 }
 804
 805                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 806                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 807                 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
 808                 SET_TX_DESC_DISABLE_FB(pdesc, ptcb_desc->disable_ratefallback ?
 809                                        1 : 0);
 810                 SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
 811
 812                 if (ieee80211_is_data_qos(fc)) {
 813                         if (mac->rdg_en) {
 814                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 815                                          "Enable RDG function.\n");
 816                                 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
 817                                 SET_TX_DESC_HTC(pdesc, 1);
 818                         }
 819                 }
 820                 /* tx report */
 821                 rtl_set_tx_report(ptcb_desc, pdesc, hw, tx_info);
 822         }
 823
 824         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 825         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 826         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)buf_len);
 827         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 828         /* if (rtlpriv->dm.useramask) { */
 829         if (1) {
 830                 SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index);
 831                 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 832         } else {
 833                 SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index);
 834                 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 835         }
 836         if (!ieee80211_is_data_qos(fc))  {
 837                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 838                 SET_TX_DESC_HWSEQ_SEL(pdesc, 0);
 839         }
 840         SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
 841         if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 842             is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
 843                 SET_TX_DESC_BMC(pdesc, 1);
 844         }
 845
 846         rtl8821ae_dm_set_tx_ant_by_tx_info(hw, pdesc, ptcb_desc->mac_id);
 847         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 848 }
 849
 850 void rtl8821ae_tx_fill_cmddesc(struct ieee80211_hw *hw,
 851                                u8 *pdesc, bool firstseg,
 852                                bool lastseg, struct sk_buff *skb)
 853 {
 854         struct rtl_priv *rtlpriv = rtl_priv(hw);
 855         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 856         u8 fw_queue = QSLT_BEACON;
 857
 858         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 859                                             skb->data, skb->len,
 860                                             PCI_DMA_TODEVICE);
 861
 862         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 863                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 864                          "DMA mapping error\n");
 865                 return;
 866         }
 867         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
 868
 869         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 870         SET_TX_DESC_LAST_SEG(pdesc, 1);
 871
 872         SET_TX_DESC_PKT_SIZE((u8 *)pdesc, (u16)(skb->len));
 873
 874         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 875
 876         SET_TX_DESC_USE_RATE(pdesc, 1);
 877         SET_TX_DESC_TX_RATE(pdesc, DESC_RATE1M);
 878         SET_TX_DESC_DISABLE_FB(pdesc, 1);
 879
 880         SET_TX_DESC_DATA_BW(pdesc, 0);
 881
 882         SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 883
 884         SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 885
 886         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 887
 888         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 889
 890         SET_TX_DESC_MACID(pdesc, 0);
 891
 892         SET_TX_DESC_OWN(pdesc, 1);
 893
 894         RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 895                       "H2C Tx Cmd Content\n",
 896                       pdesc, TX_DESC_SIZE);
 897 }
 898
 899 void rtl8821ae_set_desc(struct ieee80211_hw *hw, u8 *pdesc,
 900                         bool istx, u8 desc_name, u8 *val)
 901 {
 902         if (istx) {
 903                 switch (desc_name) {
 904                 case HW_DESC_OWN:
 905                         SET_TX_DESC_OWN(pdesc, 1);
 906                         break;
 907                 case HW_DESC_TX_NEXTDESC_ADDR:
 908                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *)val);
 909                         break;
 910                 default:
 911                         WARN_ONCE(true,
 912                                   "rtl8821ae: ERR txdesc :%d not processed\n",
 913                                   desc_name);
 914                         break;
 915                 }
 916         } else {
 917                 switch (desc_name) {
 918                 case HW_DESC_RXOWN:
 919                         SET_RX_DESC_OWN(pdesc, 1);
 920                         break;
 921                 case HW_DESC_RXBUFF_ADDR:
 922                         SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *)val);
 923                         break;
 924                 case HW_DESC_RXPKT_LEN:
 925                         SET_RX_DESC_PKT_LEN(pdesc, *(u32 *)val);
 926                         break;
 927                 case HW_DESC_RXERO:
 928                         SET_RX_DESC_EOR(pdesc, 1);
 929                         break;
 930                 default:
 931                         WARN_ONCE(true,
 932                                   "rtl8821ae: ERR rxdesc :%d not processed\n",
 933                                   desc_name);
 934                         break;
 935                 }
 936         }
 937 }
 938
 939 u64 rtl8821ae_get_desc(struct ieee80211_hw *hw,
 940                        u8 *pdesc, bool istx, u8 desc_name)
 941 {
 942         u32 ret = 0;
 943
 944         if (istx) {
 945                 switch (desc_name) {
 946                 case HW_DESC_OWN:
 947                         ret = GET_TX_DESC_OWN(pdesc);
 948                         break;
 949                 case HW_DESC_TXBUFF_ADDR:
 950                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(pdesc);
 951                         break;
 952                 default:
 953                         WARN_ONCE(true,
 954                                   "rtl8821ae: ERR txdesc :%d not processed\n",
 955                                   desc_name);
 956                         break;
 957                 }
 958         } else {
 959                 switch (desc_name) {
 960                 case HW_DESC_OWN:
 961                         ret = GET_RX_DESC_OWN(pdesc);
 962                         break;
 963                 case HW_DESC_RXPKT_LEN:
 964                         ret = GET_RX_DESC_PKT_LEN(pdesc);
 965                         break;
 966                 case HW_DESC_RXBUFF_ADDR:
 967                         ret = GET_RX_DESC_BUFF_ADDR(pdesc);
 968                         break;
 969                 default:
 970                         WARN_ONCE(true,
 971                                   "rtl8821ae: ERR rxdesc :%d not processed\n",
 972                                   desc_name);
 973                         break;
 974                 }
 975         }
 976         return ret;
 977 }
 978
 979 bool rtl8821ae_is_tx_desc_closed(struct ieee80211_hw *hw,
 980                                  u8 hw_queue, u16 index)
 981 {
 982         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 983         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 984         u8 *entry = (u8 *)(&ring->desc[ring->idx]);
 985         u8 own = (u8)rtl8821ae_get_desc(hw, entry, true, HW_DESC_OWN);
 986
 987         /**
 988          *beacon packet will only use the first
 989          *descriptor defautly,and the own may not
 990          *be cleared by the hardware
 991          */
 992         if (own)
 993                 return false;
 994         return true;
 995 }
 996
 997 void rtl8821ae_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 998 {
 999         struct rtl_priv *rtlpriv = rtl_priv(hw);
1000
1001         if (hw_queue == BEACON_QUEUE) {
1002                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
1003         } else {
1004                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
1005                                BIT(0) << (hw_queue));
1006         }
1007 }