drivers/net/wireless/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(char 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 void query_rxphystatus(struct ieee80211_hw *hw,
  68                               struct rtl_stats *pstatus, u8 *pdesc,
  69                               struct rx_fwinfo_8821ae *p_drvinfo,
  70                               bool bpacket_match_bssid,
  71                               bool bpacket_toself, bool packet_beacon)
  72 {
  73         struct rtl_priv *rtlpriv = rtl_priv(hw);
  74         struct phy_status_rpt *p_phystrpt = (struct phy_status_rpt *)p_drvinfo;
  75         struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
  76         struct rtl_phy *rtlphy = &rtlpriv->phy;
  77         char rx_pwr_all = 0, rx_pwr[4];
  78         u8 rf_rx_num = 0, evm, evmdbm, pwdb_all;
  79         u8 i, max_spatial_stream;
  80         u32 rssi, total_rssi = 0;
  81         bool is_cck = pstatus->is_cck;
  82         u8 lan_idx, vga_idx;
  83
  84         /* Record it for next packet processing */
  85         pstatus->packet_matchbssid = bpacket_match_bssid;
  86         pstatus->packet_toself = bpacket_toself;
  87         pstatus->packet_beacon = packet_beacon;
  88         pstatus->rx_mimo_signalquality[0] = -1;
  89         pstatus->rx_mimo_signalquality[1] = -1;
  90
  91         if (is_cck) {
  92                 u8 cck_highpwr;
  93                 u8 cck_agc_rpt;
  94
  95                 cck_agc_rpt = p_phystrpt->cfosho[0];
  96
  97                 /* (1)Hardware does not provide RSSI for CCK
  98                  * (2)PWDB, Average PWDB cacluated by
  99                  * hardware (for rate adaptive)
 100                  */
 101                 cck_highpwr = (u8)rtlphy->cck_high_power;
 102
 103                 lan_idx = ((cck_agc_rpt & 0xE0) >> 5);
 104                 vga_idx = (cck_agc_rpt & 0x1f);
 105                 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE) {
 106                         switch (lan_idx) {
 107                         case 7:
 108                                 if (vga_idx <= 27)
 109                                         /*VGA_idx = 27~2*/
 110                                         rx_pwr_all = -100 + 2*(27-vga_idx);
 111                                 else
 112                                         rx_pwr_all = -100;
 113                                 break;
 114                         case 6:
 115                                 /*VGA_idx = 2~0*/
 116                                 rx_pwr_all = -48 + 2*(2-vga_idx);
 117                                 break;
 118                         case 5:
 119                                 /*VGA_idx = 7~5*/
 120                                 rx_pwr_all = -42 + 2*(7-vga_idx);
 121                                 break;
 122                         case 4:
 123                                 /*VGA_idx = 7~4*/
 124                                 rx_pwr_all = -36 + 2*(7-vga_idx);
 125                                 break;
 126                         case 3:
 127                                 /*VGA_idx = 7~0*/
 128                                 rx_pwr_all = -24 + 2*(7-vga_idx);
 129                                 break;
 130                         case 2:
 131                                 if (cck_highpwr)
 132                                         /*VGA_idx = 5~0*/
 133                                         rx_pwr_all = -12 + 2*(5-vga_idx);
 134                                 else
 135                                         rx_pwr_all = -6 + 2*(5-vga_idx);
 136                                 break;
 137                         case 1:
 138                                 rx_pwr_all = 8-2*vga_idx;
 139                                 break;
 140                         case 0:
 141                                 rx_pwr_all = 14-2*vga_idx;
 142                                 break;
 143                         default:
 144                                 break;
 145                         }
 146                         rx_pwr_all += 6;
 147                         pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 148                         if (!cck_highpwr) {
 149                                 if (pwdb_all >= 80)
 150                                         pwdb_all =
 151                                           ((pwdb_all - 80)<<1) +
 152                                          ((pwdb_all - 80)>>1) + 80;
 153                                 else if ((pwdb_all <= 78) && (pwdb_all >= 20))
 154                                         pwdb_all += 3;
 155                                 if (pwdb_all > 100)
 156                                         pwdb_all = 100;
 157                         }
 158                 } else { /* 8821 */
 159                         char pout = -6;
 160
 161                         switch (lan_idx) {
 162                         case 5:
 163                                 rx_pwr_all = pout - 32 - (2*vga_idx);
 164                                         break;
 165                         case 4:
 166                                 rx_pwr_all = pout - 24 - (2*vga_idx);
 167                                         break;
 168                         case 2:
 169                                 rx_pwr_all = pout - 11 - (2*vga_idx);
 170                                         break;
 171                         case 1:
 172                                 rx_pwr_all = pout + 5 - (2*vga_idx);
 173                                         break;
 174                         case 0:
 175                                 rx_pwr_all = pout + 21 - (2*vga_idx);
 176                                         break;
 177                         }
 178                         pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 179                 }
 180
 181                 pstatus->rx_pwdb_all = pwdb_all;
 182                 pstatus->recvsignalpower = rx_pwr_all;
 183
 184                 /* (3) Get Signal Quality (EVM) */
 185                 if (bpacket_match_bssid) {
 186                         u8 sq;
 187
 188                         if (pstatus->rx_pwdb_all > 40) {
 189                                 sq = 100;
 190                         } else {
 191                                 sq = p_phystrpt->pwdb_all;
 192                                 if (sq > 64)
 193                                         sq = 0;
 194                                 else if (sq < 20)
 195                                         sq = 100;
 196                                 else
 197                                         sq = ((64 - sq) * 100) / 44;
 198                         }
 199
 200                         pstatus->signalquality = sq;
 201                         pstatus->rx_mimo_signalquality[0] = sq;
 202                         pstatus->rx_mimo_signalquality[1] = -1;
 203                 }
 204         } else {
 205                 /* (1)Get RSSI for HT rate */
 206                 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
 207                         /* we will judge RF RX path now. */
 208                         if (rtlpriv->dm.rfpath_rxenable[i])
 209                                 rf_rx_num++;
 210
 211                         rx_pwr[i] = (p_phystrpt->gain_trsw[i] & 0x7f) - 110;
 212
 213                         /* Translate DBM to percentage. */
 214                         rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
 215                         total_rssi += rssi;
 216
 217                         /* Get Rx snr value in DB */
 218                         pstatus->rx_snr[i] = p_phystrpt->rxsnr[i] / 2;
 219                         rtlpriv->stats.rx_snr_db[i] = p_phystrpt->rxsnr[i] / 2;
 220
 221                         pstatus->cfo_short[i] = odm_cfo(p_phystrpt->cfosho[i]);
 222                         pstatus->cfo_tail[i] = odm_cfo(p_phystrpt->cfotail[i]);
 223                         /* Record Signal Strength for next packet */
 224                         pstatus->rx_mimo_signalstrength[i] = (u8)rssi;
 225                 }
 226
 227                 /* (2)PWDB, Average PWDB cacluated by
 228                  * hardware (for rate adaptive)
 229                  */
 230                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 231
 232                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 233                 pstatus->rx_pwdb_all = pwdb_all;
 234                 pstatus->rxpower = rx_pwr_all;
 235                 pstatus->recvsignalpower = rx_pwr_all;
 236
 237                 /* (3)EVM of HT rate */
 238                 if ((pstatus->is_ht && pstatus->rate >= DESC_RATEMCS8 &&
 239                      pstatus->rate <= DESC_RATEMCS15) ||
 240                     (pstatus->is_vht &&
 241                      pstatus->rate >= DESC_RATEVHT2SS_MCS0 &&
 242                      pstatus->rate <= DESC_RATEVHT2SS_MCS9))
 243                         max_spatial_stream = 2;
 244                 else
 245                         max_spatial_stream = 1;
 246
 247                 for (i = 0; i < max_spatial_stream; i++) {
 248                         evm = rtl_evm_db_to_percentage(p_phystrpt->rxevm[i]);
 249                         evmdbm = rtl_evm_dbm_jaguar(p_phystrpt->rxevm[i]);
 250
 251                         if (bpacket_match_bssid) {
 252                                 /* Fill value in RFD, Get the first
 253                                  * spatial stream only
 254                                  */
 255                                 if (i == 0)
 256                                         pstatus->signalquality = evm;
 257                                 pstatus->rx_mimo_signalquality[i] = evm;
 258                                 pstatus->rx_mimo_evm_dbm[i] = evmdbm;
 259                         }
 260                 }
 261                 if (bpacket_match_bssid) {
 262                         for (i = RF90_PATH_A; i <= RF90_PATH_B; i++)
 263                                 rtl_priv(hw)->dm.cfo_tail[i] =
 264                                         (char)p_phystrpt->cfotail[i];
 265
 266                         rtl_priv(hw)->dm.packet_count++;
 267                 }
 268         }
 269
 270         /* UI BSS List signal strength(in percentage),
 271          * make it good looking, from 0~100.
 272          */
 273         if (is_cck)
 274                 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 275                         pwdb_all));
 276         else if (rf_rx_num != 0)
 277                 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 278                         total_rssi /= rf_rx_num));
 279         /*HW antenna diversity*/
 280         rtldm->fat_table.antsel_rx_keep_0 = p_phystrpt->antidx_anta;
 281         rtldm->fat_table.antsel_rx_keep_1 = p_phystrpt->antidx_antb;
 282 }
 283
 284 static void translate_rx_signal_stuff(struct ieee80211_hw *hw,
 285                                       struct sk_buff *skb,
 286                                       struct rtl_stats *pstatus, u8 *pdesc,
 287                                       struct rx_fwinfo_8821ae *p_drvinfo)
 288 {
 289         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 290         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 291         struct ieee80211_hdr *hdr;
 292         u8 *tmp_buf;
 293         u8 *praddr;
 294         u8 *psaddr;
 295         __le16 fc;
 296         u16 type;
 297         bool packet_matchbssid, packet_toself, packet_beacon;
 298
 299         tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift;
 300
 301         hdr = (struct ieee80211_hdr *)tmp_buf;
 302         fc = hdr->frame_control;
 303         type = WLAN_FC_GET_TYPE(hdr->frame_control);
 304         praddr = hdr->addr1;
 305         psaddr = ieee80211_get_SA(hdr);
 306         ether_addr_copy(pstatus->psaddr, psaddr);
 307
 308         packet_matchbssid = (!ieee80211_is_ctl(fc) &&
 309                              (ether_addr_equal(mac->bssid,
 310                                                ieee80211_has_tods(fc) ?
 311                                                hdr->addr1 :
 312                                                ieee80211_has_fromds(fc) ?
 313                                                hdr->addr2 : hdr->addr3)) &&
 314                               (!pstatus->hwerror) &&
 315                               (!pstatus->crc) && (!pstatus->icv));
 316
 317         packet_toself = packet_matchbssid &&
 318             (ether_addr_equal(praddr, rtlefuse->dev_addr));
 319
 320         if (ieee80211_is_beacon(hdr->frame_control))
 321                 packet_beacon = true;
 322         else
 323                 packet_beacon = false;
 324
 325         if (packet_beacon && packet_matchbssid)
 326                 rtl_priv(hw)->dm.dbginfo.num_qry_beacon_pkt++;
 327
 328         if (packet_matchbssid &&
 329             ieee80211_is_data_qos(hdr->frame_control) &&
 330             !is_multicast_ether_addr(ieee80211_get_DA(hdr))) {
 331                 struct ieee80211_qos_hdr *hdr_qos =
 332                         (struct ieee80211_qos_hdr *)tmp_buf;
 333                 u16 tid = le16_to_cpu(hdr_qos->qos_ctrl) & 0xf;
 334
 335                 if (tid != 0 && tid != 3)
 336                         rtl_priv(hw)->dm.dbginfo.num_non_be_pkt++;
 337         }
 338
 339         query_rxphystatus(hw, pstatus, pdesc, p_drvinfo,
 340                           packet_matchbssid, packet_toself,
 341                           packet_beacon);
 342         /*_rtl8821ae_smart_antenna(hw, pstatus); */
 343         rtl_process_phyinfo(hw, tmp_buf, pstatus);
 344 }
 345
 346 static void _rtl8821ae_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
 347                                         u8 *virtualaddress)
 348 {
 349         u32 dwtmp = 0;
 350
 351         memset(virtualaddress, 0, 8);
 352
 353         SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
 354         if (ptcb_desc->empkt_num == 1) {
 355                 dwtmp = ptcb_desc->empkt_len[0];
 356         } else {
 357                 dwtmp = ptcb_desc->empkt_len[0];
 358                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 359                 dwtmp += ptcb_desc->empkt_len[1];
 360         }
 361         SET_EARLYMODE_LEN0(virtualaddress, dwtmp);
 362
 363         if (ptcb_desc->empkt_num <= 3) {
 364                 dwtmp = ptcb_desc->empkt_len[2];
 365         } else {
 366                 dwtmp = ptcb_desc->empkt_len[2];
 367                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 368                 dwtmp += ptcb_desc->empkt_len[3];
 369         }
 370         SET_EARLYMODE_LEN1(virtualaddress, dwtmp);
 371         if (ptcb_desc->empkt_num <= 5) {
 372                 dwtmp = ptcb_desc->empkt_len[4];
 373         } else {
 374                 dwtmp = ptcb_desc->empkt_len[4];
 375                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 376                 dwtmp += ptcb_desc->empkt_len[5];
 377         }
 378         SET_EARLYMODE_LEN2_1(virtualaddress, dwtmp & 0xF);
 379         SET_EARLYMODE_LEN2_2(virtualaddress, dwtmp >> 4);
 380         if (ptcb_desc->empkt_num <= 7) {
 381                 dwtmp = ptcb_desc->empkt_len[6];
 382         } else {
 383                 dwtmp = ptcb_desc->empkt_len[6];
 384                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 385                 dwtmp += ptcb_desc->empkt_len[7];
 386         }
 387         SET_EARLYMODE_LEN3(virtualaddress, dwtmp);
 388         if (ptcb_desc->empkt_num <= 9) {
 389                 dwtmp = ptcb_desc->empkt_len[8];
 390         } else {
 391                 dwtmp = ptcb_desc->empkt_len[8];
 392                 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
 393                 dwtmp += ptcb_desc->empkt_len[9];
 394         }
 395         SET_EARLYMODE_LEN4(virtualaddress, dwtmp);
 396 }
 397
 398 static bool rtl8821ae_get_rxdesc_is_ht(struct ieee80211_hw *hw, u8 *pdesc)
 399 {
 400         struct rtl_priv *rtlpriv = rtl_priv(hw);
 401         u8 rx_rate = 0;
 402
 403         rx_rate = GET_RX_DESC_RXMCS(pdesc);
 404
 405         RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate);
 406
 407         if ((rx_rate >= DESC_RATEMCS0) && (rx_rate <= DESC_RATEMCS15))
 408                 return true;
 409         return false;
 410 }
 411
 412 static bool rtl8821ae_get_rxdesc_is_vht(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_RATEVHT1SS_MCS0)
 422                 return true;
 423         return false;
 424 }
 425
 426 static u8 rtl8821ae_get_rx_vht_nss(struct ieee80211_hw *hw, u8 *pdesc)
 427 {
 428         u8 rx_rate = 0;
 429         u8 vht_nss = 0;
 430
 431         rx_rate = GET_RX_DESC_RXMCS(pdesc);
 432         if ((rx_rate >= DESC_RATEVHT1SS_MCS0) &&
 433             (rx_rate <= DESC_RATEVHT1SS_MCS9))
 434                 vht_nss = 1;
 435         else if ((rx_rate >= DESC_RATEVHT2SS_MCS0) &&
 436                  (rx_rate <= DESC_RATEVHT2SS_MCS9))
 437                 vht_nss = 2;
 438
 439         return vht_nss;
 440 }
 441
 442 bool rtl8821ae_rx_query_desc(struct ieee80211_hw *hw,
 443                              struct rtl_stats *status,
 444                              struct ieee80211_rx_status *rx_status,
 445                              u8 *pdesc, struct sk_buff *skb)
 446 {
 447         struct rtl_priv *rtlpriv = rtl_priv(hw);
 448         struct rx_fwinfo_8821ae *p_drvinfo;
 449         struct ieee80211_hdr *hdr;
 450
 451         u32 phystatus = GET_RX_DESC_PHYST(pdesc);
 452
 453         status->length = (u16)GET_RX_DESC_PKT_LEN(pdesc);
 454         status->rx_drvinfo_size = (u8)GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
 455             RX_DRV_INFO_SIZE_UNIT;
 456         status->rx_bufshift = (u8)(GET_RX_DESC_SHIFT(pdesc) & 0x03);
 457         status->icv = (u16)GET_RX_DESC_ICV(pdesc);
 458         status->crc = (u16)GET_RX_DESC_CRC32(pdesc);
 459         status->hwerror = (status->crc | status->icv);
 460         status->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 461         status->rate = (u8)GET_RX_DESC_RXMCS(pdesc);
 462         status->shortpreamble = (u16)GET_RX_DESC_SPLCP(pdesc);
 463         status->isampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1);
 464         status->isfirst_ampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1);
 465         status->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 466         status->rx_packet_bw = GET_RX_DESC_BW(pdesc);
 467         status->macid = GET_RX_DESC_MACID(pdesc);
 468         status->is_short_gi = !(bool)GET_RX_DESC_SPLCP(pdesc);
 469         status->is_ht = rtl8821ae_get_rxdesc_is_ht(hw, pdesc);
 470         status->is_vht = rtl8821ae_get_rxdesc_is_vht(hw, pdesc);
 471         status->vht_nss = rtl8821ae_get_rx_vht_nss(hw, pdesc);
 472         status->is_cck = RTL8821AE_RX_HAL_IS_CCK_RATE(status->rate);
 473
 474         RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
 475                  "rx_packet_bw=%s,is_ht %d, is_vht %d, vht_nss=%d,is_short_gi %d.\n",
 476                  (status->rx_packet_bw == 2) ? "80M" :
 477                  (status->rx_packet_bw == 1) ? "40M" : "20M",
 478                  status->is_ht, status->is_vht, status->vht_nss,
 479                  status->is_short_gi);
 480
 481         if (GET_RX_STATUS_DESC_RPT_SEL(pdesc))
 482                 status->packet_report_type = C2H_PACKET;
 483         else
 484                 status->packet_report_type = NORMAL_RX;
 485
 486         if (GET_RX_STATUS_DESC_PATTERN_MATCH(pdesc))
 487                 status->wake_match = BIT(2);
 488         else if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc))
 489                 status->wake_match = BIT(1);
 490         else if (GET_RX_STATUS_DESC_UNICAST_MATCH(pdesc))
 491                 status->wake_match = BIT(0);
 492         else
 493                 status->wake_match = 0;
 494
 495         if (status->wake_match)
 496                 RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
 497                          "GGGGGGGGGGGGGet Wakeup Packet!! WakeMatch=%d\n",
 498                          status->wake_match);
 499         rx_status->freq = hw->conf.chandef.chan->center_freq;
 500         rx_status->band = hw->conf.chandef.chan->band;
 501
 502         hdr = (struct ieee80211_hdr *)(skb->data +
 503               status->rx_drvinfo_size + status->rx_bufshift);
 504
 505         if (status->crc)
 506                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 507
 508         if (status->rx_packet_bw == HT_CHANNEL_WIDTH_20_40)
 509                 rx_status->flag |= RX_FLAG_40MHZ;
 510         else if (status->rx_packet_bw == HT_CHANNEL_WIDTH_80)
 511                 rx_status->vht_flag |= RX_VHT_FLAG_80MHZ;
 512         if (status->is_ht)
 513                 rx_status->flag |= RX_FLAG_HT;
 514         if (status->is_vht)
 515                 rx_status->flag |= RX_FLAG_VHT;
 516
 517         if (status->is_short_gi)
 518                 rx_status->flag |= RX_FLAG_SHORT_GI;
 519
 520         rx_status->vht_nss = status->vht_nss;
 521         rx_status->flag |= RX_FLAG_MACTIME_START;
 522
 523         /* hw will set status->decrypted true, if it finds the
 524          * frame is open data frame or mgmt frame.
 525          * So hw will not decryption robust managment frame
 526          * for IEEE80211w but still set status->decrypted
 527          * true, so here we should set it back to undecrypted
 528          * for IEEE80211w frame, and mac80211 sw will help
 529          * to decrypt it
 530          */
 531         if (status->decrypted) {
 532                 if ((!_ieee80211_is_robust_mgmt_frame(hdr)) &&
 533                     (ieee80211_has_protected(hdr->frame_control)))
 534                         rx_status->flag |= RX_FLAG_DECRYPTED;
 535                 else
 536                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 537         }
 538
 539         /* rate_idx: index of data rate into band's
 540          * supported rates or MCS index if HT rates
 541          * are use (RX_FLAG_HT)
 542          */
 543         rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht,
 544                                                    status->is_vht,
 545                                                    status->rate);
 546
 547         rx_status->mactime = status->timestamp_low;
 548         if (phystatus) {
 549                 p_drvinfo = (struct rx_fwinfo_8821ae *)(skb->data +
 550                             status->rx_bufshift);
 551
 552                 translate_rx_signal_stuff(hw, skb, status, pdesc, p_drvinfo);
 553         }
 554         rx_status->signal = status->recvsignalpower + 10;
 555         if (status->packet_report_type == TX_REPORT2) {
 556                 status->macid_valid_entry[0] =
 557                   GET_RX_RPT2_DESC_MACID_VALID_1(pdesc);
 558                 status->macid_valid_entry[1] =
 559                   GET_RX_RPT2_DESC_MACID_VALID_2(pdesc);
 560         }
 561         return true;
 562 }
 563
 564 static u8 rtl8821ae_bw_mapping(struct ieee80211_hw *hw,
 565                                struct rtl_tcb_desc *ptcb_desc)
 566 {
 567         struct rtl_priv *rtlpriv = rtl_priv(hw);
 568         struct rtl_phy *rtlphy = &rtlpriv->phy;
 569         u8 bw_setting_of_desc = 0;
 570
 571         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 572                  "rtl8821ae_bw_mapping, current_chan_bw %d, packet_bw %d\n",
 573                  rtlphy->current_chan_bw, ptcb_desc->packet_bw);
 574
 575         if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
 576                 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80)
 577                         bw_setting_of_desc = 2;
 578                 else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40)
 579                         bw_setting_of_desc = 1;
 580                 else
 581                         bw_setting_of_desc = 0;
 582         } else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
 583                 if ((ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) ||
 584                     (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80))
 585                         bw_setting_of_desc = 1;
 586                 else
 587                         bw_setting_of_desc = 0;
 588         } else {
 589                 bw_setting_of_desc = 0;
 590         }
 591         return bw_setting_of_desc;
 592 }
 593
 594 static u8 rtl8821ae_sc_mapping(struct ieee80211_hw *hw,
 595                                struct rtl_tcb_desc *ptcb_desc)
 596 {
 597         struct rtl_priv *rtlpriv = rtl_priv(hw);
 598         struct rtl_phy *rtlphy = &rtlpriv->phy;
 599         struct rtl_mac *mac = rtl_mac(rtlpriv);
 600         u8 sc_setting_of_desc = 0;
 601
 602         if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
 603                 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80) {
 604                         sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
 605                 } else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
 606                         if (mac->cur_80_prime_sc ==
 607                             HAL_PRIME_CHNL_OFFSET_LOWER)
 608                                 sc_setting_of_desc =
 609                                         VHT_DATA_SC_40_LOWER_OF_80MHZ;
 610                         else if (mac->cur_80_prime_sc ==
 611                                  HAL_PRIME_CHNL_OFFSET_UPPER)
 612                                 sc_setting_of_desc =
 613                                         VHT_DATA_SC_40_UPPER_OF_80MHZ;
 614                         else
 615                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
 616                                          "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n");
 617                 } else {
 618                         if ((mac->cur_40_prime_sc ==
 619                              HAL_PRIME_CHNL_OFFSET_LOWER) &&
 620                             (mac->cur_80_prime_sc  ==
 621                              HAL_PRIME_CHNL_OFFSET_LOWER))
 622                                 sc_setting_of_desc =
 623                                         VHT_DATA_SC_20_LOWEST_OF_80MHZ;
 624                         else if ((mac->cur_40_prime_sc ==
 625                                   HAL_PRIME_CHNL_OFFSET_UPPER) &&
 626                                  (mac->cur_80_prime_sc ==
 627                                   HAL_PRIME_CHNL_OFFSET_LOWER))
 628                                 sc_setting_of_desc =
 629                                         VHT_DATA_SC_20_LOWER_OF_80MHZ;
 630                         else if ((mac->cur_40_prime_sc ==
 631                                   HAL_PRIME_CHNL_OFFSET_LOWER) &&
 632                                  (mac->cur_80_prime_sc ==
 633                                   HAL_PRIME_CHNL_OFFSET_UPPER))
 634                                 sc_setting_of_desc =
 635                                         VHT_DATA_SC_20_UPPER_OF_80MHZ;
 636                         else if ((mac->cur_40_prime_sc ==
 637                                   HAL_PRIME_CHNL_OFFSET_UPPER) &&
 638                                  (mac->cur_80_prime_sc ==
 639                                   HAL_PRIME_CHNL_OFFSET_UPPER))
 640                                 sc_setting_of_desc =
 641                                         VHT_DATA_SC_20_UPPERST_OF_80MHZ;
 642                         else
 643                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
 644                                          "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n");
 645                 }
 646         } else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
 647                 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
 648                         sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
 649                 } else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20) {
 650                         if (mac->cur_40_prime_sc ==
 651                                 HAL_PRIME_CHNL_OFFSET_UPPER) {
 652                                 sc_setting_of_desc =
 653                                         VHT_DATA_SC_20_UPPER_OF_80MHZ;
 654                         } else if (mac->cur_40_prime_sc ==
 655                                 HAL_PRIME_CHNL_OFFSET_LOWER){
 656                                 sc_setting_of_desc =
 657                                         VHT_DATA_SC_20_LOWER_OF_80MHZ;
 658                         } else {
 659                                 sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
 660                         }
 661                 }
 662         } else {
 663                 sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
 664         }
 665
 666         return sc_setting_of_desc;
 667 }
 668
 669 void rtl8821ae_tx_fill_desc(struct ieee80211_hw *hw,
 670                             struct ieee80211_hdr *hdr, u8 *pdesc_tx, u8 *txbd,
 671                             struct ieee80211_tx_info *info,
 672                             struct ieee80211_sta *sta,
 673                             struct sk_buff *skb,
 674                             u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 675 {
 676         struct rtl_priv *rtlpriv = rtl_priv(hw);
 677         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 678         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 679         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 680         u8 *pdesc = (u8 *)pdesc_tx;
 681         u16 seq_number;
 682         __le16 fc = hdr->frame_control;
 683         unsigned int buf_len = 0;
 684         unsigned int skb_len = skb->len;
 685         u8 fw_qsel = _rtl8821ae_map_hwqueue_to_fwqueue(skb, hw_queue);
 686         bool firstseg = ((hdr->seq_ctrl &
 687                           cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 688         bool lastseg = ((hdr->frame_control &
 689                          cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 690         dma_addr_t mapping;
 691         u8 short_gi = 0;
 692
 693         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 694         rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 695         /* reserve 8 byte for AMPDU early mode */
 696         if (rtlhal->earlymode_enable) {
 697                 skb_push(skb, EM_HDR_LEN);
 698                 memset(skb->data, 0, EM_HDR_LEN);
 699         }
 700         buf_len = skb->len;
 701         mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 702                                  PCI_DMA_TODEVICE);
 703         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 704                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 705                          "DMA mapping error");
 706                 return;
 707         }
 708         CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_8821ae));
 709         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 710                 firstseg = true;
 711                 lastseg = true;
 712         }
 713         if (firstseg) {
 714                 if (rtlhal->earlymode_enable) {
 715                         SET_TX_DESC_PKT_OFFSET(pdesc, 1);
 716                         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN +
 717                                            EM_HDR_LEN);
 718                         if (ptcb_desc->empkt_num) {
 719                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 720                                          "Insert 8 byte.pTcb->EMPktNum:%d\n",
 721                                           ptcb_desc->empkt_num);
 722                                 _rtl8821ae_insert_emcontent(ptcb_desc,
 723                                          (u8 *)(skb->data));
 724                         }
 725                 } else {
 726                         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 727                 }
 728
 729                 /* ptcb_desc->use_driver_rate = true; */
 730                 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
 731                 if (ptcb_desc->hw_rate > DESC_RATEMCS0)
 732                         short_gi = (ptcb_desc->use_shortgi) ? 1 : 0;
 733                 else
 734                         short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0;
 735
 736                 SET_TX_DESC_DATA_SHORTGI(pdesc, short_gi);
 737
 738                 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 739                         SET_TX_DESC_AGG_ENABLE(pdesc, 1);
 740                         SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x1f);
 741                 }
 742                 SET_TX_DESC_SEQ(pdesc, seq_number);
 743                 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
 744                                         !ptcb_desc->cts_enable) ? 1 : 0));
 745                 SET_TX_DESC_HW_RTS_ENABLE(pdesc, 0);
 746                 SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
 747
 748                 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
 749                 SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc);
 750                 SET_TX_DESC_RTS_SHORT(pdesc,
 751                         ((ptcb_desc->rts_rate <= DESC_RATE54M) ?
 752                         (ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
 753                         (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 754
 755                 if (ptcb_desc->tx_enable_sw_calc_duration)
 756                         SET_TX_DESC_NAV_USE_HDR(pdesc, 1);
 757
 758                 SET_TX_DESC_DATA_BW(pdesc,
 759                         rtl8821ae_bw_mapping(hw, ptcb_desc));
 760
 761                 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 762                         rtl8821ae_sc_mapping(hw, ptcb_desc));
 763
 764                 SET_TX_DESC_LINIP(pdesc, 0);
 765                 SET_TX_DESC_PKT_SIZE(pdesc, (u16)skb_len);
 766                 if (sta) {
 767                         u8 ampdu_density = sta->ht_cap.ampdu_density;
 768
 769                         SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
 770                 }
 771                 if (info->control.hw_key) {
 772                         struct ieee80211_key_conf *keyconf =
 773                                 info->control.hw_key;
 774                         switch (keyconf->cipher) {
 775                         case WLAN_CIPHER_SUITE_WEP40:
 776                         case WLAN_CIPHER_SUITE_WEP104:
 777                         case WLAN_CIPHER_SUITE_TKIP:
 778                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 779                                 break;
 780                         case WLAN_CIPHER_SUITE_CCMP:
 781                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 782                                 break;
 783                         default:
 784                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 785                                 break;
 786                         }
 787                 }
 788
 789                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 790                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 791                 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
 792                 SET_TX_DESC_DISABLE_FB(pdesc, ptcb_desc->disable_ratefallback ?
 793                                        1 : 0);
 794                 SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
 795
 796                 if (ieee80211_is_data_qos(fc)) {
 797                         if (mac->rdg_en) {
 798                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 799                                          "Enable RDG function.\n");
 800                                 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
 801                                 SET_TX_DESC_HTC(pdesc, 1);
 802                         }
 803                 }
 804         }
 805
 806         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 807         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 808         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)buf_len);
 809         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 810         /* if (rtlpriv->dm.useramask) { */
 811         if (1) {
 812                 SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index);
 813                 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 814         } else {
 815                 SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index);
 816                 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 817         }
 818         if (!ieee80211_is_data_qos(fc))  {
 819                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 820                 SET_TX_DESC_HWSEQ_SEL(pdesc, 0);
 821         }
 822         SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
 823         if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 824             is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
 825                 SET_TX_DESC_BMC(pdesc, 1);
 826         }
 827
 828         rtl8821ae_dm_set_tx_ant_by_tx_info(hw, pdesc, ptcb_desc->mac_id);
 829         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 830 }
 831
 832 void rtl8821ae_tx_fill_cmddesc(struct ieee80211_hw *hw,
 833                                u8 *pdesc, bool firstseg,
 834                                bool lastseg, struct sk_buff *skb)
 835 {
 836         struct rtl_priv *rtlpriv = rtl_priv(hw);
 837         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 838         u8 fw_queue = QSLT_BEACON;
 839
 840         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 841                                             skb->data, skb->len,
 842                                             PCI_DMA_TODEVICE);
 843
 844         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 845                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 846                          "DMA mapping error");
 847                 return;
 848         }
 849         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
 850
 851         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 852         SET_TX_DESC_LAST_SEG(pdesc, 1);
 853
 854         SET_TX_DESC_PKT_SIZE((u8 *)pdesc, (u16)(skb->len));
 855
 856         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 857
 858         SET_TX_DESC_USE_RATE(pdesc, 1);
 859         SET_TX_DESC_TX_RATE(pdesc, DESC_RATE1M);
 860         SET_TX_DESC_DISABLE_FB(pdesc, 1);
 861
 862         SET_TX_DESC_DATA_BW(pdesc, 0);
 863
 864         SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 865
 866         SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 867
 868         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 869
 870         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 871
 872         SET_TX_DESC_MACID(pdesc, 0);
 873
 874         SET_TX_DESC_OWN(pdesc, 1);
 875
 876         RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 877                       "H2C Tx Cmd Content\n",
 878                       pdesc, TX_DESC_SIZE);
 879 }
 880
 881 void rtl8821ae_set_desc(struct ieee80211_hw *hw, u8 *pdesc,
 882                         bool istx, u8 desc_name, u8 *val)
 883 {
 884         if (istx) {
 885                 switch (desc_name) {
 886                 case HW_DESC_OWN:
 887                         SET_TX_DESC_OWN(pdesc, 1);
 888                         break;
 889                 case HW_DESC_TX_NEXTDESC_ADDR:
 890                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *)val);
 891                         break;
 892                 default:
 893                         RT_ASSERT(false,
 894                                   "ERR txdesc :%d not process\n", desc_name);
 895                         break;
 896                 }
 897         } else {
 898                 switch (desc_name) {
 899                 case HW_DESC_RXOWN:
 900                         SET_RX_DESC_OWN(pdesc, 1);
 901                         break;
 902                 case HW_DESC_RXBUFF_ADDR:
 903                         SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *)val);
 904                         break;
 905                 case HW_DESC_RXPKT_LEN:
 906                         SET_RX_DESC_PKT_LEN(pdesc, *(u32 *)val);
 907                         break;
 908                 case HW_DESC_RXERO:
 909                         SET_RX_DESC_EOR(pdesc, 1);
 910                         break;
 911                 default:
 912                         RT_ASSERT(false,
 913                                   "ERR rxdesc :%d not process\n", desc_name);
 914                         break;
 915                 }
 916         }
 917 }
 918
 919 u32 rtl8821ae_get_desc(u8 *pdesc, bool istx, u8 desc_name)
 920 {
 921         u32 ret = 0;
 922
 923         if (istx) {
 924                 switch (desc_name) {
 925                 case HW_DESC_OWN:
 926                         ret = GET_TX_DESC_OWN(pdesc);
 927                         break;
 928                 case HW_DESC_TXBUFF_ADDR:
 929                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(pdesc);
 930                         break;
 931                 default:
 932                         RT_ASSERT(false,
 933                                   "ERR txdesc :%d not process\n", desc_name);
 934                         break;
 935                 }
 936         } else {
 937                 switch (desc_name) {
 938                 case HW_DESC_OWN:
 939                         ret = GET_RX_DESC_OWN(pdesc);
 940                         break;
 941                 case HW_DESC_RXPKT_LEN:
 942                         ret = GET_RX_DESC_PKT_LEN(pdesc);
 943                         break;
 944                 case HW_DESC_RXBUFF_ADDR:
 945                         ret = GET_RX_DESC_BUFF_ADDR(pdesc);
 946                         break;
 947                 default:
 948                         RT_ASSERT(false,
 949                                   "ERR rxdesc :%d not process\n", desc_name);
 950                         break;
 951                 }
 952         }
 953         return ret;
 954 }
 955
 956 bool rtl8821ae_is_tx_desc_closed(struct ieee80211_hw *hw,
 957                                  u8 hw_queue, u16 index)
 958 {
 959         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 960         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 961         u8 *entry = (u8 *)(&ring->desc[ring->idx]);
 962         u8 own = (u8)rtl8821ae_get_desc(entry, true, HW_DESC_OWN);
 963
 964         /**
 965          *beacon packet will only use the first
 966          *descriptor defautly,and the own may not
 967          *be cleared by the hardware
 968          */
 969         if (own)
 970                 return false;
 971         return true;
 972 }
 973
 974 void rtl8821ae_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 975 {
 976         struct rtl_priv *rtlpriv = rtl_priv(hw);
 977
 978         if (hw_queue == BEACON_QUEUE) {
 979                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
 980         } else {
 981                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
 982                                BIT(0) << (hw_queue));
 983         }
 984 }
 985
 986 u32 rtl8821ae_rx_command_packet(struct ieee80211_hw *hw,
 987                                 struct rtl_stats status,
 988                                 struct sk_buff *skb)
 989 {
 990         u32 result = 0;
 991         struct rtl_priv *rtlpriv = rtl_priv(hw);
 992
 993         switch (status.packet_report_type) {
 994         case NORMAL_RX:
 995                 result = 0;
 996                 break;
 997         case C2H_PACKET:
 998                 rtl8821ae_c2h_packet_handler(hw, skb->data, (u8)skb->len);
 999                 result = 1;
1000                 RT_TRACE(rtlpriv, COMP_RECV, DBG_LOUD,
1001                          "skb->len=%d\n\n", skb->len);
1002                 break;
1003         default:
1004                 RT_TRACE(rtlpriv, COMP_RECV, DBG_LOUD,
1005                          "No this packet type!!\n");
1006                 break;
1007         }
1008
1009         return result;
1010 }