drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2013  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
  38 static u8 _rtl88ee_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
  39 {
  40         __le16 fc = rtl_get_fc(skb);
  41
  42         if (unlikely(ieee80211_is_beacon(fc)))
  43                 return QSLT_BEACON;
  44         if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  45                 return QSLT_MGNT;
  46
  47         return skb->priority;
  48 }
  49
  50 static void _rtl88ee_query_rxphystatus(struct ieee80211_hw *hw,
  51                         struct rtl_stats *pstatus, u8 *pdesc,
  52                         struct rx_fwinfo_88e *p_drvinfo,
  53                         bool bpacket_match_bssid,
  54                         bool bpacket_toself, bool packet_beacon)
  55 {
  56         struct rtl_priv *rtlpriv = rtl_priv(hw);
  57         struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
  58         struct phy_sts_cck_8192s_t *cck_buf;
  59         struct phy_status_rpt *phystrpt =
  60                 (struct phy_status_rpt *)p_drvinfo;
  61         struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
  62         char rx_pwr_all = 0, rx_pwr[4];
  63         u8 rf_rx_num = 0, evm, pwdb_all;
  64         u8 i, max_spatial_stream;
  65         u32 rssi, total_rssi = 0;
  66         bool is_cck = pstatus->is_cck;
  67         u8 lan_idx, vga_idx;
  68
  69         /* Record it for next packet processing */
  70         pstatus->packet_matchbssid = bpacket_match_bssid;
  71         pstatus->packet_toself = bpacket_toself;
  72         pstatus->packet_beacon = packet_beacon;
  73         pstatus->rx_mimo_signalquality[0] = -1;
  74         pstatus->rx_mimo_signalquality[1] = -1;
  75
  76         if (is_cck) {
  77                 u8 cck_highpwr;
  78                 u8 cck_agc_rpt;
  79                 /* CCK Driver info Structure is not the same as OFDM packet. */
  80                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
  81                 cck_agc_rpt = cck_buf->cck_agc_rpt;
  82
  83                 /* (1)Hardware does not provide RSSI for CCK
  84                  * (2)PWDB, Average PWDB cacluated by
  85                  * hardware (for rate adaptive)
  86                  */
  87                 if (ppsc->rfpwr_state == ERFON)
  88                         cck_highpwr =
  89                                 (u8)rtl_get_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2,
  90                                                   BIT(9));
  91                 else
  92                         cck_highpwr = false;
  93
  94                 lan_idx = ((cck_agc_rpt & 0xE0) >> 5);
  95                 vga_idx = (cck_agc_rpt & 0x1f);
  96                 switch (lan_idx) {
  97                 case 7:
  98                         if (vga_idx <= 27)
  99                                 /*VGA_idx = 27~2*/
 100                                 rx_pwr_all = -100 + 2*(27-vga_idx);
 101                         else
 102                                 rx_pwr_all = -100;
 103                         break;
 104                 case 6:
 105                         /*VGA_idx = 2~0*/
 106                         rx_pwr_all = -48 + 2*(2-vga_idx);
 107                         break;
 108                 case 5:
 109                         /*VGA_idx = 7~5*/
 110                         rx_pwr_all = -42 + 2*(7-vga_idx);
 111                         break;
 112                 case 4:
 113                         /*VGA_idx = 7~4*/
 114                         rx_pwr_all = -36 + 2*(7-vga_idx);
 115                         break;
 116                 case 3:
 117                         /*VGA_idx = 7~0*/
 118                         rx_pwr_all = -24 + 2*(7-vga_idx);
 119                         break;
 120                 case 2:
 121                         if (cck_highpwr)
 122                                 /*VGA_idx = 5~0*/
 123                                 rx_pwr_all = -12 + 2*(5-vga_idx);
 124                         else
 125                                 rx_pwr_all = -6 + 2*(5-vga_idx);
 126                         break;
 127                 case 1:
 128                         rx_pwr_all = 8-2*vga_idx;
 129                         break;
 130                 case 0:
 131                         rx_pwr_all = 14-2*vga_idx;
 132                         break;
 133                 default:
 134                         break;
 135                 }
 136                 rx_pwr_all += 6;
 137                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 138                 /* CCK gain is smaller than OFDM/MCS gain,  */
 139                 /* so we add gain diff by experiences, the val is 6 */
 140                 pwdb_all += 6;
 141                 if (pwdb_all > 100)
 142                         pwdb_all = 100;
 143                 /* modify the offset to make the same
 144                  * gain index with OFDM.
 145                  */
 146                 if (pwdb_all > 34 && pwdb_all <= 42)
 147                         pwdb_all -= 2;
 148                 else if (pwdb_all > 26 && pwdb_all <= 34)
 149                         pwdb_all -= 6;
 150                 else if (pwdb_all > 14 && pwdb_all <= 26)
 151                         pwdb_all -= 8;
 152                 else if (pwdb_all > 4 && pwdb_all <= 14)
 153                         pwdb_all -= 4;
 154                 if (!cck_highpwr) {
 155                         if (pwdb_all >= 80)
 156                                 pwdb_all = ((pwdb_all-80)<<1) +
 157                                            ((pwdb_all-80)>>1) + 80;
 158                         else if ((pwdb_all <= 78) && (pwdb_all >= 20))
 159                                 pwdb_all += 3;
 160                         if (pwdb_all > 100)
 161                                 pwdb_all = 100;
 162                 }
 163
 164                 pstatus->rx_pwdb_all = pwdb_all;
 165                 pstatus->recvsignalpower = rx_pwr_all;
 166
 167                 /* (3) Get Signal Quality (EVM) */
 168                 if (bpacket_match_bssid) {
 169                         u8 sq;
 170
 171                         if (pstatus->rx_pwdb_all > 40)
 172                                 sq = 100;
 173                         else {
 174                                 sq = cck_buf->sq_rpt;
 175                                 if (sq > 64)
 176                                         sq = 0;
 177                                 else if (sq < 20)
 178                                         sq = 100;
 179                                 else
 180                                         sq = ((64 - sq) * 100) / 44;
 181                         }
 182
 183                         pstatus->signalquality = sq;
 184                         pstatus->rx_mimo_signalquality[0] = sq;
 185                         pstatus->rx_mimo_signalquality[1] = -1;
 186                 }
 187         } else {
 188                 rtlpriv->dm.rfpath_rxenable[0] =
 189                     rtlpriv->dm.rfpath_rxenable[1] = true;
 190
 191                 /* (1)Get RSSI for HT rate */
 192                 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
 193                         /* we will judge RF RX path now. */
 194                         if (rtlpriv->dm.rfpath_rxenable[i])
 195                                 rf_rx_num++;
 196
 197                         rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
 198                                       0x3f) * 2) - 110;
 199
 200                         /* Translate DBM to percentage. */
 201                         rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
 202                         total_rssi += rssi;
 203
 204                         /* Get Rx snr value in DB */
 205                         rtlpriv->stats.rx_snr_db[i] =
 206                                 (long)(p_drvinfo->rxsnr[i] / 2);
 207
 208                         /* Record Signal Strength for next packet */
 209                         if (bpacket_match_bssid)
 210                                 pstatus->rx_mimo_signalstrength[i] = (u8)rssi;
 211                 }
 212
 213                 /* (2)PWDB, Average PWDB cacluated by
 214                  * hardware (for rate adaptive)
 215                  */
 216                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 217
 218                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 219                 pstatus->rx_pwdb_all = pwdb_all;
 220                 pstatus->rxpower = rx_pwr_all;
 221                 pstatus->recvsignalpower = rx_pwr_all;
 222
 223                 /* (3)EVM of HT rate */
 224                 if (pstatus->is_ht && pstatus->rate >= DESC92C_RATEMCS8 &&
 225                     pstatus->rate <= DESC92C_RATEMCS15)
 226                         max_spatial_stream = 2;
 227                 else
 228                         max_spatial_stream = 1;
 229
 230                 for (i = 0; i < max_spatial_stream; i++) {
 231                         evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 232
 233                         if (bpacket_match_bssid) {
 234                                 /* Fill value in RFD, Get the first
 235                                  * spatial stream onlyi
 236                                  */
 237                                 if (i == 0)
 238                                         pstatus->signalquality =
 239                                                 (u8)(evm & 0xff);
 240                                 pstatus->rx_mimo_signalquality[i] =
 241                                         (u8)(evm & 0xff);
 242                         }
 243                 }
 244         }
 245
 246         /* UI BSS List signal strength(in percentage),
 247          * make it good looking, from 0~100.
 248          */
 249         if (is_cck)
 250                 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 251                         pwdb_all));
 252         else if (rf_rx_num != 0)
 253                 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 254                         total_rssi /= rf_rx_num));
 255         /*HW antenna diversity*/
 256         rtldm->fat_table.antsel_rx_keep_0 = phystrpt->ant_sel;
 257         rtldm->fat_table.antsel_rx_keep_1 = phystrpt->ant_sel_b;
 258         rtldm->fat_table.antsel_rx_keep_2 = phystrpt->antsel_rx_keep_2;
 259 }
 260
 261 static void _rtl88ee_smart_antenna(struct ieee80211_hw *hw,
 262         struct rtl_stats *pstatus)
 263 {
 264         struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
 265         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 266         u8 antsel_tr_mux;
 267         struct fast_ant_training *pfat_table = &rtldm->fat_table;
 268
 269         if (rtlefuse->antenna_div_type == CG_TRX_SMART_ANTDIV) {
 270                 if (pfat_table->fat_state == FAT_TRAINING_STATE) {
 271                         if (pstatus->packet_toself) {
 272                                 antsel_tr_mux =
 273                                         (pfat_table->antsel_rx_keep_2 << 2) |
 274                                         (pfat_table->antsel_rx_keep_1 << 1) |
 275                                         pfat_table->antsel_rx_keep_0;
 276                                 pfat_table->ant_sum[antsel_tr_mux] +=
 277                                         pstatus->rx_pwdb_all;
 278                                 pfat_table->ant_cnt[antsel_tr_mux]++;
 279                         }
 280                 }
 281         } else if ((rtlefuse->antenna_div_type == CG_TRX_HW_ANTDIV) ||
 282         (rtlefuse->antenna_div_type == CGCS_RX_HW_ANTDIV)) {
 283                 if (pstatus->packet_toself || pstatus->packet_matchbssid) {
 284                         antsel_tr_mux = (pfat_table->antsel_rx_keep_2 << 2) |
 285                                         (pfat_table->antsel_rx_keep_1 << 1) |
 286                                         pfat_table->antsel_rx_keep_0;
 287                         rtl88e_dm_ant_sel_statistics(hw, antsel_tr_mux, 0,
 288                                                      pstatus->rx_pwdb_all);
 289                 }
 290
 291         }
 292 }
 293
 294 static void _rtl88ee_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 295                                                struct sk_buff *skb,
 296                                                struct rtl_stats *pstatus,
 297                                                u8 *pdesc,
 298                                                struct rx_fwinfo_88e *p_drvinfo)
 299 {
 300         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 301         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 302         struct ieee80211_hdr *hdr;
 303         u8 *tmp_buf;
 304         u8 *praddr;
 305         u8 *psaddr;
 306         __le16 fc;
 307         bool packet_matchbssid, packet_toself, packet_beacon;
 308
 309         tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift;
 310
 311         hdr = (struct ieee80211_hdr *)tmp_buf;
 312         fc = hdr->frame_control;
 313         praddr = hdr->addr1;
 314         psaddr = ieee80211_get_SA(hdr);
 315         memcpy(pstatus->psaddr, psaddr, ETH_ALEN);
 316
 317         packet_matchbssid = ((!ieee80211_is_ctl(fc)) &&
 318              (ether_addr_equal(mac->bssid, ieee80211_has_tods(fc) ?
 319                                hdr->addr1 : ieee80211_has_fromds(fc) ?
 320                                hdr->addr2 : hdr->addr3)) &&
 321                                (!pstatus->hwerror) &&
 322                                (!pstatus->crc) && (!pstatus->icv));
 323
 324         packet_toself = packet_matchbssid &&
 325             (ether_addr_equal(praddr, rtlefuse->dev_addr));
 326
 327         if (ieee80211_is_beacon(hdr->frame_control))
 328                 packet_beacon = true;
 329         else
 330                 packet_beacon = false;
 331
 332         _rtl88ee_query_rxphystatus(hw, pstatus, pdesc, p_drvinfo,
 333                                    packet_matchbssid, packet_toself,
 334                                    packet_beacon);
 335         _rtl88ee_smart_antenna(hw, pstatus);
 336         rtl_process_phyinfo(hw, tmp_buf, pstatus);
 337 }
 338
 339 static void _rtl88ee_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
 340                                       u8 *virtualaddress)
 341 {
 342         u32 dwtmp = 0;
 343         memset(virtualaddress, 0, 8);
 344
 345         SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
 346         if (ptcb_desc->empkt_num == 1) {
 347                 dwtmp = ptcb_desc->empkt_len[0];
 348         } else {
 349                 dwtmp = ptcb_desc->empkt_len[0];
 350                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 351                 dwtmp += ptcb_desc->empkt_len[1];
 352         }
 353         SET_EARLYMODE_LEN0(virtualaddress, dwtmp);
 354
 355         if (ptcb_desc->empkt_num <= 3) {
 356                 dwtmp = ptcb_desc->empkt_len[2];
 357         } else {
 358                 dwtmp = ptcb_desc->empkt_len[2];
 359                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 360                 dwtmp += ptcb_desc->empkt_len[3];
 361         }
 362         SET_EARLYMODE_LEN1(virtualaddress, dwtmp);
 363         if (ptcb_desc->empkt_num <= 5) {
 364                 dwtmp = ptcb_desc->empkt_len[4];
 365         } else {
 366                 dwtmp = ptcb_desc->empkt_len[4];
 367                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 368                 dwtmp += ptcb_desc->empkt_len[5];
 369         }
 370         SET_EARLYMODE_LEN2_1(virtualaddress, dwtmp & 0xF);
 371         SET_EARLYMODE_LEN2_2(virtualaddress, dwtmp >> 4);
 372         if (ptcb_desc->empkt_num <= 7) {
 373                 dwtmp = ptcb_desc->empkt_len[6];
 374         } else {
 375                 dwtmp = ptcb_desc->empkt_len[6];
 376                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 377                 dwtmp += ptcb_desc->empkt_len[7];
 378         }
 379         SET_EARLYMODE_LEN3(virtualaddress, dwtmp);
 380         if (ptcb_desc->empkt_num <= 9) {
 381                 dwtmp = ptcb_desc->empkt_len[8];
 382         } else {
 383                 dwtmp = ptcb_desc->empkt_len[8];
 384                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 385                 dwtmp += ptcb_desc->empkt_len[9];
 386         }
 387         SET_EARLYMODE_LEN4(virtualaddress, dwtmp);
 388 }
 389
 390 bool rtl88ee_rx_query_desc(struct ieee80211_hw *hw,
 391                            struct rtl_stats *status,
 392                            struct ieee80211_rx_status *rx_status,
 393                            u8 *pdesc, struct sk_buff *skb)
 394 {
 395         struct rtl_priv *rtlpriv = rtl_priv(hw);
 396         struct rx_fwinfo_88e *p_drvinfo;
 397         struct ieee80211_hdr *hdr;
 398
 399         u32 phystatus = GET_RX_DESC_PHYST(pdesc);
 400         status->packet_report_type = (u8)GET_RX_STATUS_DESC_RPT_SEL(pdesc);
 401         if (status->packet_report_type == TX_REPORT2)
 402                 status->length = (u16)GET_RX_RPT2_DESC_PKT_LEN(pdesc);
 403         else
 404                 status->length = (u16)GET_RX_DESC_PKT_LEN(pdesc);
 405         status->rx_drvinfo_size = (u8)GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
 406             RX_DRV_INFO_SIZE_UNIT;
 407         status->rx_bufshift = (u8)(GET_RX_DESC_SHIFT(pdesc) & 0x03);
 408         status->icv = (u16)GET_RX_DESC_ICV(pdesc);
 409         status->crc = (u16)GET_RX_DESC_CRC32(pdesc);
 410         status->hwerror = (status->crc | status->icv);
 411         status->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 412         status->rate = (u8)GET_RX_DESC_RXMCS(pdesc);
 413         status->shortpreamble = (u16)GET_RX_DESC_SPLCP(pdesc);
 414         status->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
 415         status->isfirst_ampdu = (bool)((GET_RX_DESC_PAGGR(pdesc) == 1) &&
 416                                 (GET_RX_DESC_FAGGR(pdesc) == 1));
 417         if (status->packet_report_type == NORMAL_RX)
 418                 status->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 419         status->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
 420         status->is_ht = (bool)GET_RX_DESC_RXHT(pdesc);
 421
 422         status->is_cck = RTL8188_RX_HAL_IS_CCK_RATE(status->rate);
 423
 424         status->macid = GET_RX_DESC_MACID(pdesc);
 425         if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc))
 426                 status->wake_match = BIT(2);
 427         else if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc))
 428                 status->wake_match = BIT(1);
 429         else if (GET_RX_STATUS_DESC_UNICAST_MATCH(pdesc))
 430                 status->wake_match = BIT(0);
 431         else
 432                 status->wake_match = 0;
 433         if (status->wake_match)
 434                 RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
 435                 "GGGGGGGGGGGGGet Wakeup Packet!! WakeMatch=%d\n",
 436                 status->wake_match);
 437         rx_status->freq = hw->conf.chandef.chan->center_freq;
 438         rx_status->band = hw->conf.chandef.chan->band;
 439
 440         hdr = (struct ieee80211_hdr *)(skb->data + status->rx_drvinfo_size
 441                         + status->rx_bufshift);
 442
 443         if (status->crc)
 444                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 445
 446         if (status->rx_is40Mhzpacket)
 447                 rx_status->flag |= RX_FLAG_40MHZ;
 448
 449         if (status->is_ht)
 450                 rx_status->flag |= RX_FLAG_HT;
 451
 452         rx_status->flag |= RX_FLAG_MACTIME_START;
 453
 454         /* hw will set status->decrypted true, if it finds the
 455          * frame is open data frame or mgmt frame.
 456          * So hw will not decryption robust managment frame
 457          * for IEEE80211w but still set status->decrypted
 458          * true, so here we should set it back to undecrypted
 459          * for IEEE80211w frame, and mac80211 sw will help
 460          * to decrypt it
 461          */
 462         if (status->decrypted) {
 463                 if ((!_ieee80211_is_robust_mgmt_frame(hdr)) &&
 464                     (ieee80211_has_protected(hdr->frame_control)))
 465                         rx_status->flag |= RX_FLAG_DECRYPTED;
 466                 else
 467                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 468         }
 469
 470         /* rate_idx: index of data rate into band's
 471          * supported rates or MCS index if HT rates
 472          * are use (RX_FLAG_HT)
 473          * Notice: this is diff with windows define
 474          */
 475         rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht,
 476                                                    false, status->rate);
 477
 478         rx_status->mactime = status->timestamp_low;
 479         if (phystatus == true) {
 480                 p_drvinfo = (struct rx_fwinfo_88e *)(skb->data +
 481                                                      status->rx_bufshift);
 482
 483                 _rtl88ee_translate_rx_signal_stuff(hw,
 484                                                    skb, status, pdesc,
 485                                                    p_drvinfo);
 486         }
 487         rx_status->signal = status->recvsignalpower + 10;
 488         if (status->packet_report_type == TX_REPORT2) {
 489                 status->macid_valid_entry[0] =
 490                          GET_RX_RPT2_DESC_MACID_VALID_1(pdesc);
 491                 status->macid_valid_entry[1] =
 492                          GET_RX_RPT2_DESC_MACID_VALID_2(pdesc);
 493         }
 494         return true;
 495 }
 496
 497 void rtl88ee_tx_fill_desc(struct ieee80211_hw *hw,
 498                           struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 499                           u8 *txbd, struct ieee80211_tx_info *info,
 500                           struct ieee80211_sta *sta,
 501                           struct sk_buff *skb,
 502                           u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 503
 504 {
 505         struct rtl_priv *rtlpriv = rtl_priv(hw);
 506         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 507         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 508         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 509         u8 *pdesc = (u8 *)pdesc_tx;
 510         u16 seq_number;
 511         __le16 fc = hdr->frame_control;
 512         unsigned int buf_len = 0;
 513         unsigned int skb_len = skb->len;
 514         u8 fw_qsel = _rtl88ee_map_hwqueue_to_fwqueue(skb, hw_queue);
 515         bool firstseg = ((hdr->seq_ctrl &
 516                             cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 517         bool lastseg = ((hdr->frame_control &
 518                            cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 519         dma_addr_t mapping;
 520         u8 bw_40 = 0;
 521         u8 short_gi = 0;
 522
 523         if (mac->opmode == NL80211_IFTYPE_STATION) {
 524                 bw_40 = mac->bw_40;
 525         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 526                 mac->opmode == NL80211_IFTYPE_ADHOC) {
 527                 if (sta)
 528                         bw_40 = sta->ht_cap.cap &
 529                                 IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 530         }
 531         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 532         rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 533         /* reserve 8 byte for AMPDU early mode */
 534         if (rtlhal->earlymode_enable) {
 535                 skb_push(skb, EM_HDR_LEN);
 536                 memset(skb->data, 0, EM_HDR_LEN);
 537         }
 538         buf_len = skb->len;
 539         mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 540                                  PCI_DMA_TODEVICE);
 541         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 542                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 543                          "DMA mapping error");
 544                 return;
 545         }
 546         CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_88e));
 547         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 548                 firstseg = true;
 549                 lastseg = true;
 550         }
 551         if (firstseg) {
 552                 if (rtlhal->earlymode_enable) {
 553                         SET_TX_DESC_PKT_OFFSET(pdesc, 1);
 554                         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN +
 555                                            EM_HDR_LEN);
 556                         if (ptcb_desc->empkt_num) {
 557                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 558                                          "Insert 8 byte.pTcb->EMPktNum:%d\n",
 559                                           ptcb_desc->empkt_num);
 560                                 _rtl88ee_insert_emcontent(ptcb_desc,
 561                                                           (u8 *)(skb->data));
 562                         }
 563                 } else {
 564                         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 565                 }
 566
 567                 ptcb_desc->use_driver_rate = true;
 568                 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
 569                 if (ptcb_desc->hw_rate > DESC92C_RATEMCS0)
 570                         short_gi = (ptcb_desc->use_shortgi) ? 1 : 0;
 571                 else
 572                         short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0;
 573
 574                 SET_TX_DESC_DATA_SHORTGI(pdesc, short_gi);
 575
 576                 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 577                         SET_TX_DESC_AGG_ENABLE(pdesc, 1);
 578                         SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
 579                 }
 580                 SET_TX_DESC_SEQ(pdesc, seq_number);
 581                 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
 582                                                 !ptcb_desc->cts_enable) ? 1 : 0));
 583                 SET_TX_DESC_HW_RTS_ENABLE(pdesc, 0);
 584                 SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
 585                 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
 586
 587                 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
 588                 SET_TX_DESC_RTS_BW(pdesc, 0);
 589                 SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc);
 590                 SET_TX_DESC_RTS_SHORT(pdesc,
 591                         ((ptcb_desc->rts_rate <= DESC92C_RATE54M) ?
 592                         (ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
 593                         (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 594
 595                 if (ptcb_desc->tx_enable_sw_calc_duration)
 596                         SET_TX_DESC_NAV_USE_HDR(pdesc, 1);
 597
 598                 if (bw_40) {
 599                         if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
 600                                 SET_TX_DESC_DATA_BW(pdesc, 1);
 601                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
 602                         } else {
 603                                 SET_TX_DESC_DATA_BW(pdesc, 0);
 604                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 605                                                            mac->cur_40_prime_sc);
 606                         }
 607                 } else {
 608                         SET_TX_DESC_DATA_BW(pdesc, 0);
 609                         SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 610                 }
 611
 612                 SET_TX_DESC_LINIP(pdesc, 0);
 613                 SET_TX_DESC_PKT_SIZE(pdesc, (u16)skb_len);
 614                 if (sta) {
 615                         u8 ampdu_density = sta->ht_cap.ampdu_density;
 616                         SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
 617                 }
 618                 if (info->control.hw_key) {
 619                         struct ieee80211_key_conf *keyconf;
 620
 621                         keyconf = info->control.hw_key;
 622                         switch (keyconf->cipher) {
 623                         case WLAN_CIPHER_SUITE_WEP40:
 624                         case WLAN_CIPHER_SUITE_WEP104:
 625                         case WLAN_CIPHER_SUITE_TKIP:
 626                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 627                                 break;
 628                         case WLAN_CIPHER_SUITE_CCMP:
 629                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 630                                 break;
 631                         default:
 632                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 633                                 break;
 634
 635                         }
 636                 }
 637
 638                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 639                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 640                 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
 641                 SET_TX_DESC_DISABLE_FB(pdesc, ptcb_desc->disable_ratefallback ?
 642                                        1 : 0);
 643                 SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
 644
 645                 /*SET_TX_DESC_PWR_STATUS(pdesc, pwr_status);*/
 646                 /* Set TxRate and RTSRate in TxDesc  */
 647                 /* This prevent Tx initial rate of new-coming packets */
 648                 /* from being overwritten by retried  packet rate.*/
 649                 if (!ptcb_desc->use_driver_rate) {
 650                         /*SET_TX_DESC_RTS_RATE(pdesc, 0x08); */
 651                         /* SET_TX_DESC_TX_RATE(pdesc, 0x0b); */
 652                 }
 653                 if (ieee80211_is_data_qos(fc)) {
 654                         if (mac->rdg_en) {
 655                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 656                                         "Enable RDG function.\n");
 657                                 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
 658                                 SET_TX_DESC_HTC(pdesc, 1);
 659                         }
 660                 }
 661         }
 662
 663         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 664         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 665         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)buf_len);
 666         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 667         if (rtlpriv->dm.useramask) {
 668                 SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index);
 669                 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 670         } else {
 671                 SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index);
 672                 SET_TX_DESC_MACID(pdesc, ptcb_desc->ratr_index);
 673         }
 674         if (ieee80211_is_data_qos(fc))
 675                 SET_TX_DESC_QOS(pdesc, 1);
 676
 677         if (!ieee80211_is_data_qos(fc))
 678                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 679         SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
 680         if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 681             is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
 682                 SET_TX_DESC_BMC(pdesc, 1);
 683         }
 684
 685         rtl88e_dm_set_tx_ant_by_tx_info(hw, pdesc, ptcb_desc->mac_id);
 686         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 687 }
 688
 689 void rtl88ee_tx_fill_cmddesc(struct ieee80211_hw *hw,
 690                              u8 *pdesc, bool firstseg,
 691                              bool lastseg, struct sk_buff *skb)
 692 {
 693         struct rtl_priv *rtlpriv = rtl_priv(hw);
 694         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 695         u8 fw_queue = QSLT_BEACON;
 696
 697         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 698                                             skb->data, skb->len,
 699                                             PCI_DMA_TODEVICE);
 700
 701         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 702         __le16 fc = hdr->frame_control;
 703
 704         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 705                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 706                          "DMA mapping error");
 707                 return;
 708         }
 709         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
 710
 711         if (firstseg)
 712                 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 713
 714         SET_TX_DESC_TX_RATE(pdesc, DESC92C_RATE1M);
 715
 716         SET_TX_DESC_SEQ(pdesc, 0);
 717
 718         SET_TX_DESC_LINIP(pdesc, 0);
 719
 720         SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 721
 722         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 723         SET_TX_DESC_LAST_SEG(pdesc, 1);
 724
 725         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 726
 727         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 728
 729         SET_TX_DESC_RATE_ID(pdesc, 7);
 730         SET_TX_DESC_MACID(pdesc, 0);
 731
 732         SET_TX_DESC_OWN(pdesc, 1);
 733
 734         SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
 735
 736         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 737         SET_TX_DESC_LAST_SEG(pdesc, 1);
 738
 739         SET_TX_DESC_OFFSET(pdesc, 0x20);
 740
 741         SET_TX_DESC_USE_RATE(pdesc, 1);
 742
 743         if (!ieee80211_is_data_qos(fc))
 744                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 745
 746         RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 747                       "H2C Tx Cmd Content\n",
 748                       pdesc, TX_DESC_SIZE);
 749 }
 750
 751 void rtl88ee_set_desc(struct ieee80211_hw *hw, u8 *pdesc,
 752                       bool istx, u8 desc_name, u8 *val)
 753 {
 754         if (istx == true) {
 755                 switch (desc_name) {
 756                 case HW_DESC_OWN:
 757                         SET_TX_DESC_OWN(pdesc, 1);
 758                         break;
 759                 case HW_DESC_TX_NEXTDESC_ADDR:
 760                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *)val);
 761                         break;
 762                 default:
 763                         RT_ASSERT(false, "ERR txdesc :%d not process\n",
 764                                   desc_name);
 765                         break;
 766                 }
 767         } else {
 768                 switch (desc_name) {
 769                 case HW_DESC_RXOWN:
 770                         SET_RX_DESC_OWN(pdesc, 1);
 771                         break;
 772                 case HW_DESC_RXBUFF_ADDR:
 773                         SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *)val);
 774                         break;
 775                 case HW_DESC_RXPKT_LEN:
 776                         SET_RX_DESC_PKT_LEN(pdesc, *(u32 *)val);
 777                         break;
 778                 case HW_DESC_RXERO:
 779                         SET_RX_DESC_EOR(pdesc, 1);
 780                         break;
 781                 default:
 782                         RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 783                                   desc_name);
 784                         break;
 785                 }
 786         }
 787 }
 788
 789 u32 rtl88ee_get_desc(u8 *pdesc, bool istx, u8 desc_name)
 790 {
 791         u32 ret = 0;
 792
 793         if (istx == true) {
 794                 switch (desc_name) {
 795                 case HW_DESC_OWN:
 796                         ret = GET_TX_DESC_OWN(pdesc);
 797                         break;
 798                 case HW_DESC_TXBUFF_ADDR:
 799                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(pdesc);
 800                         break;
 801                 default:
 802                         RT_ASSERT(false, "ERR txdesc :%d not process\n",
 803                                   desc_name);
 804                         break;
 805                 }
 806         } else {
 807                 switch (desc_name) {
 808                 case HW_DESC_OWN:
 809                         ret = GET_RX_DESC_OWN(pdesc);
 810                         break;
 811                 case HW_DESC_RXPKT_LEN:
 812                         ret = GET_RX_DESC_PKT_LEN(pdesc);
 813                         break;
 814                 case HW_DESC_RXBUFF_ADDR:
 815                         ret = GET_RX_DESC_BUFF_ADDR(pdesc);
 816                         break;
 817                 default:
 818                         RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 819                                   desc_name);
 820                         break;
 821                 }
 822         }
 823         return ret;
 824 }
 825
 826 bool rtl88ee_is_tx_desc_closed(struct ieee80211_hw *hw, u8 hw_queue, u16 index)
 827 {
 828         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 829         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 830         u8 *entry = (u8 *)(&ring->desc[ring->idx]);
 831         u8 own = (u8)rtl88ee_get_desc(entry, true, HW_DESC_OWN);
 832
 833         /*beacon packet will only use the first
 834          *descriptor defautly,and the own may not
 835          *be cleared by the hardware
 836          */
 837         if (own)
 838                 return false;
 839         return true;
 840 }
 841
 842 void rtl88ee_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 843 {
 844         struct rtl_priv *rtlpriv = rtl_priv(hw);
 845         if (hw_queue == BEACON_QUEUE) {
 846                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
 847         } else {
 848                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
 849                                BIT(0) << (hw_queue));
 850         }
 851 }
 852
 853 u32 rtl88ee_rx_command_packet(struct ieee80211_hw *hw,
 854                               struct rtl_stats status,
 855                               struct sk_buff *skb)
 856 {
 857         return 0;
 858 }