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

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DEFINITIONS

This source file includes following definitions.
  1. _rtl88ee_map_hwqueue_to_fwqueue
  2. _rtl88ee_query_rxphystatus
  3. _rtl88ee_smart_antenna
  4. _rtl88ee_translate_rx_signal_stuff
  5. rtl88ee_insert_emcontent
  6. rtl88ee_rx_query_desc
  7. rtl88ee_tx_fill_desc
  8. rtl88ee_tx_fill_cmddesc
  9. rtl88ee_set_desc
  10. rtl88ee_get_desc
  11. rtl88ee_is_tx_desc_closed
  12. rtl88ee_tx_polling

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2009-2013  Realtek Corporation.*/
   3 
   4 #include "../wifi.h"
   5 #include "../pci.h"
   6 #include "../base.h"
   7 #include "../stats.h"
   8 #include "reg.h"
   9 #include "def.h"
  10 #include "trx.h"
  11 #include "led.h"
  12 #include "dm.h"
  13 #include "phy.h"
  14 
  15 static u8 _rtl88ee_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
  16 {
  17         __le16 fc = rtl_get_fc(skb);
  18 
  19         if (unlikely(ieee80211_is_beacon(fc)))
  20                 return QSLT_BEACON;
  21         if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  22                 return QSLT_MGNT;
  23 
  24         return skb->priority;
  25 }
  26 
  27 static void _rtl88ee_query_rxphystatus(struct ieee80211_hw *hw,
  28                         struct rtl_stats *pstatus, __le32 *pdesc,
  29                         struct rx_fwinfo_88e *p_drvinfo,
  30                         bool bpacket_match_bssid,
  31                         bool bpacket_toself, bool packet_beacon)
  32 {
  33         struct rtl_priv *rtlpriv = rtl_priv(hw);
  34         struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
  35         struct phy_sts_cck_8192s_t *cck_buf;
  36         struct phy_status_rpt *phystrpt =
  37                 (struct phy_status_rpt *)p_drvinfo;
  38         struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
  39         s8 rx_pwr_all = 0, rx_pwr[4];
  40         u8 rf_rx_num = 0, evm, pwdb_all;
  41         u8 i, max_spatial_stream;
  42         u32 rssi, total_rssi = 0;
  43         bool is_cck = pstatus->is_cck;
  44         u8 lan_idx, vga_idx;
  45 
  46         /* Record it for next packet processing */
  47         pstatus->packet_matchbssid = bpacket_match_bssid;
  48         pstatus->packet_toself = bpacket_toself;
  49         pstatus->packet_beacon = packet_beacon;
  50         pstatus->rx_mimo_signalquality[0] = -1;
  51         pstatus->rx_mimo_signalquality[1] = -1;
  52 
  53         if (is_cck) {
  54                 u8 cck_highpwr;
  55                 u8 cck_agc_rpt;
  56                 /* CCK Driver info Structure is not the same as OFDM packet. */
  57                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
  58                 cck_agc_rpt = cck_buf->cck_agc_rpt;
  59 
  60                 /* (1)Hardware does not provide RSSI for CCK
  61                  * (2)PWDB, Average PWDB cacluated by
  62                  * hardware (for rate adaptive)
  63                  */
  64                 if (ppsc->rfpwr_state == ERFON)
  65                         cck_highpwr =
  66                                 (u8)rtl_get_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2,
  67                                                   BIT(9));
  68                 else
  69                         cck_highpwr = false;
  70 
  71                 lan_idx = ((cck_agc_rpt & 0xE0) >> 5);
  72                 vga_idx = (cck_agc_rpt & 0x1f);
  73                 switch (lan_idx) {
  74                 case 7:
  75                         if (vga_idx <= 27)
  76                                 /*VGA_idx = 27~2*/
  77                                 rx_pwr_all = -100 + 2*(27-vga_idx);
  78                         else
  79                                 rx_pwr_all = -100;
  80                         break;
  81                 case 6:
  82                         /*VGA_idx = 2~0*/
  83                         rx_pwr_all = -48 + 2*(2-vga_idx);
  84                         break;
  85                 case 5:
  86                         /*VGA_idx = 7~5*/
  87                         rx_pwr_all = -42 + 2*(7-vga_idx);
  88                         break;
  89                 case 4:
  90                         /*VGA_idx = 7~4*/
  91                         rx_pwr_all = -36 + 2*(7-vga_idx);
  92                         break;
  93                 case 3:
  94                         /*VGA_idx = 7~0*/
  95                         rx_pwr_all = -24 + 2*(7-vga_idx);
  96                         break;
  97                 case 2:
  98                         if (cck_highpwr)
  99                                 /*VGA_idx = 5~0*/
 100                                 rx_pwr_all = -12 + 2*(5-vga_idx);
 101                         else
 102                                 rx_pwr_all = -6 + 2*(5-vga_idx);
 103                         break;
 104                 case 1:
 105                         rx_pwr_all = 8-2*vga_idx;
 106                         break;
 107                 case 0:
 108                         rx_pwr_all = 14-2*vga_idx;
 109                         break;
 110                 default:
 111                         break;
 112                 }
 113                 rx_pwr_all += 6;
 114                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 115                 /* CCK gain is smaller than OFDM/MCS gain,  */
 116                 /* so we add gain diff by experiences, the val is 6 */
 117                 pwdb_all += 6;
 118                 if (pwdb_all > 100)
 119                         pwdb_all = 100;
 120                 /* modify the offset to make the same
 121                  * gain index with OFDM.
 122                  */
 123                 if (pwdb_all > 34 && pwdb_all <= 42)
 124                         pwdb_all -= 2;
 125                 else if (pwdb_all > 26 && pwdb_all <= 34)
 126                         pwdb_all -= 6;
 127                 else if (pwdb_all > 14 && pwdb_all <= 26)
 128                         pwdb_all -= 8;
 129                 else if (pwdb_all > 4 && pwdb_all <= 14)
 130                         pwdb_all -= 4;
 131                 if (!cck_highpwr) {
 132                         if (pwdb_all >= 80)
 133                                 pwdb_all = ((pwdb_all-80)<<1) +
 134                                            ((pwdb_all-80)>>1) + 80;
 135                         else if ((pwdb_all <= 78) && (pwdb_all >= 20))
 136                                 pwdb_all += 3;
 137                         if (pwdb_all > 100)
 138                                 pwdb_all = 100;
 139                 }
 140 
 141                 pstatus->rx_pwdb_all = pwdb_all;
 142                 pstatus->recvsignalpower = rx_pwr_all;
 143 
 144                 /* (3) Get Signal Quality (EVM) */
 145                 if (bpacket_match_bssid) {
 146                         u8 sq;
 147 
 148                         if (pstatus->rx_pwdb_all > 40)
 149                                 sq = 100;
 150                         else {
 151                                 sq = cck_buf->sq_rpt;
 152                                 if (sq > 64)
 153                                         sq = 0;
 154                                 else if (sq < 20)
 155                                         sq = 100;
 156                                 else
 157                                         sq = ((64 - sq) * 100) / 44;
 158                         }
 159 
 160                         pstatus->signalquality = sq;
 161                         pstatus->rx_mimo_signalquality[0] = sq;
 162                         pstatus->rx_mimo_signalquality[1] = -1;
 163                 }
 164         } else {
 165                 rtlpriv->dm.rfpath_rxenable[0] =
 166                     rtlpriv->dm.rfpath_rxenable[1] = true;
 167 
 168                 /* (1)Get RSSI for HT rate */
 169                 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
 170                         /* we will judge RF RX path now. */
 171                         if (rtlpriv->dm.rfpath_rxenable[i])
 172                                 rf_rx_num++;
 173 
 174                         rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
 175                                       0x3f) * 2) - 110;
 176 
 177                         /* Translate DBM to percentage. */
 178                         rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
 179                         total_rssi += rssi;
 180 
 181                         /* Get Rx snr value in DB */
 182                         rtlpriv->stats.rx_snr_db[i] =
 183                                 (long)(p_drvinfo->rxsnr[i] / 2);
 184 
 185                         /* Record Signal Strength for next packet */
 186                         if (bpacket_match_bssid)
 187                                 pstatus->rx_mimo_signalstrength[i] = (u8)rssi;
 188                 }
 189 
 190                 /* (2)PWDB, Average PWDB cacluated by
 191                  * hardware (for rate adaptive)
 192                  */
 193                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 194 
 195                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 196                 pstatus->rx_pwdb_all = pwdb_all;
 197                 pstatus->rxpower = rx_pwr_all;
 198                 pstatus->recvsignalpower = rx_pwr_all;
 199 
 200                 /* (3)EVM of HT rate */
 201                 if (pstatus->is_ht && pstatus->rate >= DESC92C_RATEMCS8 &&
 202                     pstatus->rate <= DESC92C_RATEMCS15)
 203                         max_spatial_stream = 2;
 204                 else
 205                         max_spatial_stream = 1;
 206 
 207                 for (i = 0; i < max_spatial_stream; i++) {
 208                         evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 209 
 210                         if (bpacket_match_bssid) {
 211                                 /* Fill value in RFD, Get the first
 212                                  * spatial stream onlyi
 213                                  */
 214                                 if (i == 0)
 215                                         pstatus->signalquality =
 216                                                 (u8)(evm & 0xff);
 217                                 pstatus->rx_mimo_signalquality[i] =
 218                                         (u8)(evm & 0xff);
 219                         }
 220                 }
 221         }
 222 
 223         /* UI BSS List signal strength(in percentage),
 224          * make it good looking, from 0~100.
 225          */
 226         if (is_cck)
 227                 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 228                         pwdb_all));
 229         else if (rf_rx_num != 0)
 230                 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 231                         total_rssi /= rf_rx_num));
 232         /*HW antenna diversity*/
 233         rtldm->fat_table.antsel_rx_keep_0 = phystrpt->ant_sel;
 234         rtldm->fat_table.antsel_rx_keep_1 = phystrpt->ant_sel_b;
 235         rtldm->fat_table.antsel_rx_keep_2 = phystrpt->antsel_rx_keep_2;
 236 }
 237 
 238 static void _rtl88ee_smart_antenna(struct ieee80211_hw *hw,
 239         struct rtl_stats *pstatus)
 240 {
 241         struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
 242         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 243         u8 antsel_tr_mux;
 244         struct fast_ant_training *pfat_table = &rtldm->fat_table;
 245 
 246         if (rtlefuse->antenna_div_type == CG_TRX_SMART_ANTDIV) {
 247                 if (pfat_table->fat_state == FAT_TRAINING_STATE) {
 248                         if (pstatus->packet_toself) {
 249                                 antsel_tr_mux =
 250                                         (pfat_table->antsel_rx_keep_2 << 2) |
 251                                         (pfat_table->antsel_rx_keep_1 << 1) |
 252                                         pfat_table->antsel_rx_keep_0;
 253                                 pfat_table->ant_sum[antsel_tr_mux] +=
 254                                         pstatus->rx_pwdb_all;
 255                                 pfat_table->ant_cnt[antsel_tr_mux]++;
 256                         }
 257                 }
 258         } else if ((rtlefuse->antenna_div_type == CG_TRX_HW_ANTDIV) ||
 259         (rtlefuse->antenna_div_type == CGCS_RX_HW_ANTDIV)) {
 260                 if (pstatus->packet_toself || pstatus->packet_matchbssid) {
 261                         antsel_tr_mux = (pfat_table->antsel_rx_keep_2 << 2) |
 262                                         (pfat_table->antsel_rx_keep_1 << 1) |
 263                                         pfat_table->antsel_rx_keep_0;
 264                         rtl88e_dm_ant_sel_statistics(hw, antsel_tr_mux, 0,
 265                                                      pstatus->rx_pwdb_all);
 266                 }
 267 
 268         }
 269 }
 270 
 271 static void _rtl88ee_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 272                                                struct sk_buff *skb,
 273                                                struct rtl_stats *pstatus,
 274                                                __le32 *pdesc,
 275                                                struct rx_fwinfo_88e *p_drvinfo)
 276 {
 277         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 278         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 279         struct ieee80211_hdr *hdr;
 280         u8 *tmp_buf;
 281         u8 *praddr;
 282         u8 *psaddr;
 283         __le16 fc;
 284         bool packet_matchbssid, packet_toself, packet_beacon;
 285 
 286         tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift;
 287 
 288         hdr = (struct ieee80211_hdr *)tmp_buf;
 289         fc = hdr->frame_control;
 290         praddr = hdr->addr1;
 291         psaddr = ieee80211_get_SA(hdr);
 292         memcpy(pstatus->psaddr, psaddr, ETH_ALEN);
 293 
 294         packet_matchbssid = ((!ieee80211_is_ctl(fc)) &&
 295              (ether_addr_equal(mac->bssid, ieee80211_has_tods(fc) ?
 296                                hdr->addr1 : ieee80211_has_fromds(fc) ?
 297                                hdr->addr2 : hdr->addr3)) &&
 298                                (!pstatus->hwerror) &&
 299                                (!pstatus->crc) && (!pstatus->icv));
 300 
 301         packet_toself = packet_matchbssid &&
 302             (ether_addr_equal(praddr, rtlefuse->dev_addr));
 303 
 304         if (ieee80211_is_beacon(hdr->frame_control))
 305                 packet_beacon = true;
 306         else
 307                 packet_beacon = false;
 308 
 309         _rtl88ee_query_rxphystatus(hw, pstatus, pdesc, p_drvinfo,
 310                                    packet_matchbssid, packet_toself,
 311                                    packet_beacon);
 312         _rtl88ee_smart_antenna(hw, pstatus);
 313         rtl_process_phyinfo(hw, tmp_buf, pstatus);
 314 }
 315 
 316 static void rtl88ee_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
 317                                      __le32 *virtualaddress)
 318 {
 319         u32 dwtmp = 0;
 320         memset(virtualaddress, 0, 8);
 321 
 322         set_earlymode_pktnum(virtualaddress, ptcb_desc->empkt_num);
 323         if (ptcb_desc->empkt_num == 1) {
 324                 dwtmp = ptcb_desc->empkt_len[0];
 325         } else {
 326                 dwtmp = ptcb_desc->empkt_len[0];
 327                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 328                 dwtmp += ptcb_desc->empkt_len[1];
 329         }
 330         set_earlymode_len0(virtualaddress, dwtmp);
 331 
 332         if (ptcb_desc->empkt_num <= 3) {
 333                 dwtmp = ptcb_desc->empkt_len[2];
 334         } else {
 335                 dwtmp = ptcb_desc->empkt_len[2];
 336                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 337                 dwtmp += ptcb_desc->empkt_len[3];
 338         }
 339         set_earlymode_len1(virtualaddress, dwtmp);
 340         if (ptcb_desc->empkt_num <= 5) {
 341                 dwtmp = ptcb_desc->empkt_len[4];
 342         } else {
 343                 dwtmp = ptcb_desc->empkt_len[4];
 344                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 345                 dwtmp += ptcb_desc->empkt_len[5];
 346         }
 347         set_earlymode_len2_1(virtualaddress, dwtmp & 0xF);
 348         set_earlymode_len2_2(virtualaddress, dwtmp >> 4);
 349         if (ptcb_desc->empkt_num <= 7) {
 350                 dwtmp = ptcb_desc->empkt_len[6];
 351         } else {
 352                 dwtmp = ptcb_desc->empkt_len[6];
 353                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 354                 dwtmp += ptcb_desc->empkt_len[7];
 355         }
 356         set_earlymode_len3(virtualaddress, dwtmp);
 357         if (ptcb_desc->empkt_num <= 9) {
 358                 dwtmp = ptcb_desc->empkt_len[8];
 359         } else {
 360                 dwtmp = ptcb_desc->empkt_len[8];
 361                 dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 362                 dwtmp += ptcb_desc->empkt_len[9];
 363         }
 364         set_earlymode_len4(virtualaddress, dwtmp);
 365 }
 366 
 367 bool rtl88ee_rx_query_desc(struct ieee80211_hw *hw,
 368                            struct rtl_stats *status,
 369                            struct ieee80211_rx_status *rx_status,
 370                            u8 *pdesc8, struct sk_buff *skb)
 371 {
 372         struct rtl_priv *rtlpriv = rtl_priv(hw);
 373         struct rx_fwinfo_88e *p_drvinfo;
 374         struct ieee80211_hdr *hdr;
 375         u8 wake_match;
 376         __le32 *pdesc = (__le32 *)pdesc8;
 377         u32 phystatus = get_rx_desc_physt(pdesc);
 378 
 379         status->packet_report_type = (u8)get_rx_status_desc_rpt_sel(pdesc);
 380         if (status->packet_report_type == TX_REPORT2)
 381                 status->length = (u16)get_rx_rpt2_desc_pkt_len(pdesc);
 382         else
 383                 status->length = (u16)get_rx_desc_pkt_len(pdesc);
 384         status->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(pdesc) *
 385             RX_DRV_INFO_SIZE_UNIT;
 386         status->rx_bufshift = (u8)(get_rx_desc_shift(pdesc) & 0x03);
 387         status->icv = (u16)get_rx_desc_icv(pdesc);
 388         status->crc = (u16)get_rx_desc_crc32(pdesc);
 389         status->hwerror = (status->crc | status->icv);
 390         status->decrypted = !get_rx_desc_swdec(pdesc);
 391         status->rate = (u8)get_rx_desc_rxmcs(pdesc);
 392         status->shortpreamble = (u16)get_rx_desc_splcp(pdesc);
 393         status->isampdu = (bool) (get_rx_desc_paggr(pdesc) == 1);
 394         status->isfirst_ampdu = (bool)((get_rx_desc_paggr(pdesc) == 1) &&
 395                                 (get_rx_desc_faggr(pdesc) == 1));
 396         if (status->packet_report_type == NORMAL_RX)
 397                 status->timestamp_low = get_rx_desc_tsfl(pdesc);
 398         status->rx_is40mhzpacket = (bool)get_rx_desc_bw(pdesc);
 399         status->is_ht = (bool)get_rx_desc_rxht(pdesc);
 400 
 401         status->is_cck = RTL8188_RX_HAL_IS_CCK_RATE(status->rate);
 402 
 403         status->macid = get_rx_desc_macid(pdesc);
 404         if (get_rx_status_desc_pattern_match(pdesc))
 405                 wake_match = BIT(2);
 406         else if (get_rx_status_desc_magic_match(pdesc))
 407                 wake_match = BIT(1);
 408         else if (get_rx_status_desc_unicast_match(pdesc))
 409                 wake_match = BIT(0);
 410         else
 411                 wake_match = 0;
 412         if (wake_match)
 413                 RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
 414                 "GGGGGGGGGGGGGet Wakeup Packet!! WakeMatch=%d\n",
 415                 wake_match);
 416         rx_status->freq = hw->conf.chandef.chan->center_freq;
 417         rx_status->band = hw->conf.chandef.chan->band;
 418 
 419         hdr = (struct ieee80211_hdr *)(skb->data + status->rx_drvinfo_size
 420                         + status->rx_bufshift);
 421 
 422         if (status->crc)
 423                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 424 
 425         if (status->rx_is40mhzpacket)
 426                 rx_status->bw = RATE_INFO_BW_40;
 427 
 428         if (status->is_ht)
 429                 rx_status->encoding = RX_ENC_HT;
 430 
 431         rx_status->flag |= RX_FLAG_MACTIME_START;
 432 
 433         /* hw will set status->decrypted true, if it finds the
 434          * frame is open data frame or mgmt frame.
 435          * So hw will not decryption robust managment frame
 436          * for IEEE80211w but still set status->decrypted
 437          * true, so here we should set it back to undecrypted
 438          * for IEEE80211w frame, and mac80211 sw will help
 439          * to decrypt it
 440          */
 441         if (status->decrypted) {
 442                 if ((!_ieee80211_is_robust_mgmt_frame(hdr)) &&
 443                     (ieee80211_has_protected(hdr->frame_control)))
 444                         rx_status->flag |= RX_FLAG_DECRYPTED;
 445                 else
 446                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 447         }
 448 
 449         /* rate_idx: index of data rate into band's
 450          * supported rates or MCS index if HT rates
 451          * are use (RX_FLAG_HT)
 452          * Notice: this is diff with windows define
 453          */
 454         rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht,
 455                                                    false, status->rate);
 456 
 457         rx_status->mactime = status->timestamp_low;
 458         if (phystatus == true) {
 459                 p_drvinfo = (struct rx_fwinfo_88e *)(skb->data +
 460                                                      status->rx_bufshift);
 461 
 462                 _rtl88ee_translate_rx_signal_stuff(hw,
 463                                                    skb, status, pdesc,
 464                                                    p_drvinfo);
 465         }
 466         rx_status->signal = status->recvsignalpower + 10;
 467         if (status->packet_report_type == TX_REPORT2) {
 468                 status->macid_valid_entry[0] =
 469                          get_rx_rpt2_desc_macid_valid_1(pdesc);
 470                 status->macid_valid_entry[1] =
 471                          get_rx_rpt2_desc_macid_valid_2(pdesc);
 472         }
 473         return true;
 474 }
 475 
 476 void rtl88ee_tx_fill_desc(struct ieee80211_hw *hw,
 477                           struct ieee80211_hdr *hdr, u8 *pdesc8,
 478                           u8 *txbd, struct ieee80211_tx_info *info,
 479                           struct ieee80211_sta *sta,
 480                           struct sk_buff *skb,
 481                           u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 482 
 483 {
 484         struct rtl_priv *rtlpriv = rtl_priv(hw);
 485         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 486         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 487         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 488         u16 seq_number;
 489         __le16 fc = hdr->frame_control;
 490         unsigned int buf_len = 0;
 491         unsigned int skb_len = skb->len;
 492         u8 fw_qsel = _rtl88ee_map_hwqueue_to_fwqueue(skb, hw_queue);
 493         bool firstseg = ((hdr->seq_ctrl &
 494                             cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 495         bool lastseg = ((hdr->frame_control &
 496                            cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 497         dma_addr_t mapping;
 498         u8 bw_40 = 0;
 499         u8 short_gi = 0;
 500         __le32 *pdesc = (u32 *)pdesc8;
 501 
 502         if (mac->opmode == NL80211_IFTYPE_STATION) {
 503                 bw_40 = mac->bw_40;
 504         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 505                 mac->opmode == NL80211_IFTYPE_ADHOC) {
 506                 if (sta)
 507                         bw_40 = sta->ht_cap.cap &
 508                                 IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 509         }
 510         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 511         rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 512         /* reserve 8 byte for AMPDU early mode */
 513         if (rtlhal->earlymode_enable) {
 514                 skb_push(skb, EM_HDR_LEN);
 515                 memset(skb->data, 0, EM_HDR_LEN);
 516         }
 517         buf_len = skb->len;
 518         mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 519                                  PCI_DMA_TODEVICE);
 520         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 521                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 522                          "DMA mapping error\n");
 523                 return;
 524         }
 525         clear_pci_tx_desc_content(pdesc, sizeof(struct tx_desc_88e));
 526         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 527                 firstseg = true;
 528                 lastseg = true;
 529         }
 530         if (firstseg) {
 531                 if (rtlhal->earlymode_enable) {
 532                         set_tx_desc_pkt_offset(pdesc, 1);
 533                         set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN +
 534                                            EM_HDR_LEN);
 535                         if (ptcb_desc->empkt_num) {
 536                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 537                                          "Insert 8 byte.pTcb->EMPktNum:%d\n",
 538                                           ptcb_desc->empkt_num);
 539                                 rtl88ee_insert_emcontent(ptcb_desc,
 540                                                          (__le32 *)(skb->data));
 541                         }
 542                 } else {
 543                         set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
 544                 }
 545 
 546                 ptcb_desc->use_driver_rate = true;
 547                 set_tx_desc_tx_rate(pdesc, ptcb_desc->hw_rate);
 548                 if (ptcb_desc->hw_rate > DESC92C_RATEMCS0)
 549                         short_gi = (ptcb_desc->use_shortgi) ? 1 : 0;
 550                 else
 551                         short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0;
 552 
 553                 set_tx_desc_data_shortgi(pdesc, short_gi);
 554 
 555                 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 556                         set_tx_desc_agg_enable(pdesc, 1);
 557                         set_tx_desc_max_agg_num(pdesc, 0x14);
 558                 }
 559                 set_tx_desc_seq(pdesc, seq_number);
 560                 set_tx_desc_rts_enable(pdesc, ((ptcb_desc->rts_enable &&
 561                                                 !ptcb_desc->cts_enable) ? 1 : 0));
 562                 set_tx_desc_hw_rts_enable(pdesc, 0);
 563                 set_tx_desc_cts2self(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
 564                 set_tx_desc_rts_stbc(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
 565 
 566                 set_tx_desc_rts_rate(pdesc, ptcb_desc->rts_rate);
 567                 set_tx_desc_rts_bw(pdesc, 0);
 568                 set_tx_desc_rts_sc(pdesc, ptcb_desc->rts_sc);
 569                 set_tx_desc_rts_short(pdesc,
 570                         ((ptcb_desc->rts_rate <= DESC92C_RATE54M) ?
 571                         (ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
 572                         (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 573 
 574                 if (ptcb_desc->tx_enable_sw_calc_duration)
 575                         set_tx_desc_nav_use_hdr(pdesc, 1);
 576 
 577                 if (bw_40) {
 578                         if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
 579                                 set_tx_desc_data_bw(pdesc, 1);
 580                                 set_tx_desc_tx_sub_carrier(pdesc, 3);
 581                         } else {
 582                                 set_tx_desc_data_bw(pdesc, 0);
 583                                 set_tx_desc_tx_sub_carrier(pdesc,
 584                                                            mac->cur_40_prime_sc);
 585                         }
 586                 } else {
 587                         set_tx_desc_data_bw(pdesc, 0);
 588                         set_tx_desc_tx_sub_carrier(pdesc, 0);
 589                 }
 590 
 591                 set_tx_desc_linip(pdesc, 0);
 592                 set_tx_desc_pkt_size(pdesc, (u16)skb_len);
 593                 if (sta) {
 594                         u8 ampdu_density = sta->ht_cap.ampdu_density;
 595                         set_tx_desc_ampdu_density(pdesc, ampdu_density);
 596                 }
 597                 if (info->control.hw_key) {
 598                         struct ieee80211_key_conf *keyconf;
 599 
 600                         keyconf = info->control.hw_key;
 601                         switch (keyconf->cipher) {
 602                         case WLAN_CIPHER_SUITE_WEP40:
 603                         case WLAN_CIPHER_SUITE_WEP104:
 604                         case WLAN_CIPHER_SUITE_TKIP:
 605                                 set_tx_desc_sec_type(pdesc, 0x1);
 606                                 break;
 607                         case WLAN_CIPHER_SUITE_CCMP:
 608                                 set_tx_desc_sec_type(pdesc, 0x3);
 609                                 break;
 610                         default:
 611                                 set_tx_desc_sec_type(pdesc, 0x0);
 612                                 break;
 613 
 614                         }
 615                 }
 616 
 617                 set_tx_desc_queue_sel(pdesc, fw_qsel);
 618                 set_tx_desc_data_rate_fb_limit(pdesc, 0x1F);
 619                 set_tx_desc_rts_rate_fb_limit(pdesc, 0xF);
 620                 set_tx_desc_disable_fb(pdesc, ptcb_desc->disable_ratefallback ?
 621                                        1 : 0);
 622                 set_tx_desc_use_rate(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
 623 
 624                 /*set_tx_desc_pwr_status(pdesc, pwr_status);*/
 625                 /* Set TxRate and RTSRate in TxDesc  */
 626                 /* This prevent Tx initial rate of new-coming packets */
 627                 /* from being overwritten by retried  packet rate.*/
 628                 if (!ptcb_desc->use_driver_rate) {
 629                         /*set_tx_desc_rts_rate(pdesc, 0x08); */
 630                         /* set_tx_desc_tx_rate(pdesc, 0x0b); */
 631                 }
 632                 if (ieee80211_is_data_qos(fc)) {
 633                         if (mac->rdg_en) {
 634                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 635                                         "Enable RDG function.\n");
 636                                 set_tx_desc_rdg_enable(pdesc, 1);
 637                                 set_tx_desc_htc(pdesc, 1);
 638                         }
 639                 }
 640         }
 641 
 642         set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0));
 643         set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0));
 644         set_tx_desc_tx_buffer_size(pdesc, (u16)buf_len);
 645         set_tx_desc_tx_buffer_address(pdesc, mapping);
 646         if (rtlpriv->dm.useramask) {
 647                 set_tx_desc_rate_id(pdesc, ptcb_desc->ratr_index);
 648                 set_tx_desc_macid(pdesc, ptcb_desc->mac_id);
 649         } else {
 650                 set_tx_desc_rate_id(pdesc, 0xC + ptcb_desc->ratr_index);
 651                 set_tx_desc_macid(pdesc, ptcb_desc->ratr_index);
 652         }
 653         if (ieee80211_is_data_qos(fc))
 654                 set_tx_desc_qos(pdesc, 1);
 655 
 656         if (!ieee80211_is_data_qos(fc))
 657                 set_tx_desc_hwseq_en(pdesc, 1);
 658         set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1));
 659         if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 660             is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
 661                 set_tx_desc_bmc(pdesc, 1);
 662         }
 663 
 664         rtl88e_dm_set_tx_ant_by_tx_info(hw, pdesc8, ptcb_desc->mac_id);
 665         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 666 }
 667 
 668 void rtl88ee_tx_fill_cmddesc(struct ieee80211_hw *hw,
 669                              u8 *pdesc8, bool firstseg,
 670                              bool lastseg, struct sk_buff *skb)
 671 {
 672         struct rtl_priv *rtlpriv = rtl_priv(hw);
 673         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 674         u8 fw_queue = QSLT_BEACON;
 675         __le32 *pdesc = (__le32 *)pdesc8;
 676 
 677         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 678                                             skb->data, skb->len,
 679                                             PCI_DMA_TODEVICE);
 680 
 681         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 682         __le16 fc = hdr->frame_control;
 683 
 684         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 685                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 686                          "DMA mapping error\n");
 687                 return;
 688         }
 689         clear_pci_tx_desc_content(pdesc, TX_DESC_SIZE);
 690 
 691         if (firstseg)
 692                 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
 693 
 694         set_tx_desc_tx_rate(pdesc, DESC92C_RATE1M);
 695 
 696         set_tx_desc_seq(pdesc, 0);
 697 
 698         set_tx_desc_linip(pdesc, 0);
 699 
 700         set_tx_desc_queue_sel(pdesc, fw_queue);
 701 
 702         set_tx_desc_first_seg(pdesc, 1);
 703         set_tx_desc_last_seg(pdesc, 1);
 704 
 705         set_tx_desc_tx_buffer_size(pdesc, (u16)(skb->len));
 706 
 707         set_tx_desc_tx_buffer_address(pdesc, mapping);
 708 
 709         set_tx_desc_rate_id(pdesc, 7);
 710         set_tx_desc_macid(pdesc, 0);
 711 
 712         set_tx_desc_own(pdesc, 1);
 713 
 714         set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
 715 
 716         set_tx_desc_first_seg(pdesc, 1);
 717         set_tx_desc_last_seg(pdesc, 1);
 718 
 719         set_tx_desc_offset(pdesc, 0x20);
 720 
 721         set_tx_desc_use_rate(pdesc, 1);
 722 
 723         if (!ieee80211_is_data_qos(fc))
 724                 set_tx_desc_hwseq_en(pdesc, 1);
 725 
 726         RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 727                       "H2C Tx Cmd Content\n",
 728                       pdesc, TX_DESC_SIZE);
 729 }
 730 
 731 void rtl88ee_set_desc(struct ieee80211_hw *hw, u8 *pdesc8,
 732                       bool istx, u8 desc_name, u8 *val)
 733 {
 734         __le32 *pdesc = (__le32 *)pdesc8;
 735 
 736         if (istx == true) {
 737                 switch (desc_name) {
 738                 case HW_DESC_OWN:
 739                         set_tx_desc_own(pdesc, 1);
 740                         break;
 741                 case HW_DESC_TX_NEXTDESC_ADDR:
 742                         set_tx_desc_next_desc_address(pdesc, *(u32 *)val);
 743                         break;
 744                 default:
 745                         WARN_ONCE(true, "rtl8188ee: ERR txdesc :%d not processed\n",
 746                                   desc_name);
 747                         break;
 748                 }
 749         } else {
 750                 switch (desc_name) {
 751                 case HW_DESC_RXOWN:
 752                         set_rx_desc_own(pdesc, 1);
 753                         break;
 754                 case HW_DESC_RXBUFF_ADDR:
 755                         set_rx_desc_buff_addr(pdesc, *(u32 *)val);
 756                         break;
 757                 case HW_DESC_RXPKT_LEN:
 758                         set_rx_desc_pkt_len(pdesc, *(u32 *)val);
 759                         break;
 760                 case HW_DESC_RXERO:
 761                         set_rx_desc_eor(pdesc, 1);
 762                         break;
 763                 default:
 764                         WARN_ONCE(true, "rtl8188ee: ERR rxdesc :%d not processed\n",
 765                                   desc_name);
 766                         break;
 767                 }
 768         }
 769 }
 770 
 771 u64 rtl88ee_get_desc(struct ieee80211_hw *hw,
 772                      u8 *pdesc8, bool istx, u8 desc_name)
 773 {
 774         u32 ret = 0;
 775         __le32 *pdesc = (__le32 *)pdesc8;
 776 
 777         if (istx == true) {
 778                 switch (desc_name) {
 779                 case HW_DESC_OWN:
 780                         ret = get_tx_desc_own(pdesc);
 781                         break;
 782                 case HW_DESC_TXBUFF_ADDR:
 783                         ret = get_tx_desc_tx_buffer_address(pdesc);
 784                         break;
 785                 default:
 786                         WARN_ONCE(true, "rtl8188ee: ERR txdesc :%d not processed\n",
 787                                   desc_name);
 788                         break;
 789                 }
 790         } else {
 791                 switch (desc_name) {
 792                 case HW_DESC_OWN:
 793                         ret = get_rx_desc_own(pdesc);
 794                         break;
 795                 case HW_DESC_RXPKT_LEN:
 796                         ret = get_rx_desc_pkt_len(pdesc);
 797                         break;
 798                 case HW_DESC_RXBUFF_ADDR:
 799                         ret = get_rx_desc_buff_addr(pdesc);
 800                         break;
 801                 default:
 802                         WARN_ONCE(true, "rtl8188ee: ERR rxdesc :%d not processed\n",
 803                                   desc_name);
 804                         break;
 805                 }
 806         }
 807         return ret;
 808 }
 809 
 810 bool rtl88ee_is_tx_desc_closed(struct ieee80211_hw *hw, u8 hw_queue, u16 index)
 811 {
 812         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 813         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 814         u8 *entry = (u8 *)(&ring->desc[ring->idx]);
 815         u8 own = (u8)rtl88ee_get_desc(hw, entry, true, HW_DESC_OWN);
 816 
 817         /*beacon packet will only use the first
 818          *descriptor defautly,and the own may not
 819          *be cleared by the hardware
 820          */
 821         if (own)
 822                 return false;
 823         return true;
 824 }
 825 
 826 void rtl88ee_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 827 {
 828         struct rtl_priv *rtlpriv = rtl_priv(hw);
 829         if (hw_queue == BEACON_QUEUE) {
 830                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
 831         } else {
 832                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
 833                                BIT(0) << (hw_queue));
 834         }
 835 }

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