drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2009-2012  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 "phy.h"
  11 #include "trx.h"
  12 #include "led.h"
  13
  14 static u8 _rtl92ce_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
  15 {
  16         __le16 fc = rtl_get_fc(skb);
  17
  18         if (unlikely(ieee80211_is_beacon(fc)))
  19                 return QSLT_BEACON;
  20         if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  21                 return QSLT_MGNT;
  22
  23         return skb->priority;
  24 }
  25
  26 static u8 _rtl92c_query_rxpwrpercentage(s8 antpower)
  27 {
  28         if ((antpower <= -100) || (antpower >= 20))
  29                 return 0;
  30         else if (antpower >= 0)
  31                 return 100;
  32         else
  33                 return 100 + antpower;
  34 }
  35
  36 static long _rtl92ce_signal_scale_mapping(struct ieee80211_hw *hw,
  37                 long currsig)
  38 {
  39         long retsig;
  40
  41         if (currsig >= 61 && currsig <= 100)
  42                 retsig = 90 + ((currsig - 60) / 4);
  43         else if (currsig >= 41 && currsig <= 60)
  44                 retsig = 78 + ((currsig - 40) / 2);
  45         else if (currsig >= 31 && currsig <= 40)
  46                 retsig = 66 + (currsig - 30);
  47         else if (currsig >= 21 && currsig <= 30)
  48                 retsig = 54 + (currsig - 20);
  49         else if (currsig >= 5 && currsig <= 20)
  50                 retsig = 42 + (((currsig - 5) * 2) / 3);
  51         else if (currsig == 4)
  52                 retsig = 36;
  53         else if (currsig == 3)
  54                 retsig = 27;
  55         else if (currsig == 2)
  56                 retsig = 18;
  57         else if (currsig == 1)
  58                 retsig = 9;
  59         else
  60                 retsig = currsig;
  61
  62         return retsig;
  63 }
  64
  65 static void _rtl92ce_query_rxphystatus(struct ieee80211_hw *hw,
  66                                        struct rtl_stats *pstats,
  67                                        struct rx_desc_92c *pdesc,
  68                                        struct rx_fwinfo_92c *p_drvinfo,
  69                                        bool packet_match_bssid,
  70                                        bool packet_toself,
  71                                        bool packet_beacon)
  72 {
  73         struct rtl_priv *rtlpriv = rtl_priv(hw);
  74         struct phy_sts_cck_8192s_t *cck_buf;
  75         struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
  76         s8 rx_pwr_all = 0, rx_pwr[4];
  77         u8 evm, pwdb_all, rf_rx_num = 0;
  78         u8 i, max_spatial_stream;
  79         u32 rssi, total_rssi = 0;
  80         bool is_cck_rate;
  81
  82         is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
  83         pstats->packet_matchbssid = packet_match_bssid;
  84         pstats->packet_toself = packet_toself;
  85         pstats->is_cck = is_cck_rate;
  86         pstats->packet_beacon = packet_beacon;
  87         pstats->rx_mimo_sig_qual[0] = -1;
  88         pstats->rx_mimo_sig_qual[1] = -1;
  89
  90         if (is_cck_rate) {
  91                 u8 report, cck_highpwr;
  92
  93                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
  94
  95                 if (ppsc->rfpwr_state == ERFON)
  96                         cck_highpwr = (u8) rtl_get_bbreg(hw,
  97                                                  RFPGA0_XA_HSSIPARAMETER2,
  98                                                  BIT(9));
  99                 else
 100                         cck_highpwr = false;
 101
 102                 if (!cck_highpwr) {
 103                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 104
 105                         report = cck_buf->cck_agc_rpt & 0xc0;
 106                         report = report >> 6;
 107                         switch (report) {
 108                         case 0x3:
 109                                 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
 110                                 break;
 111                         case 0x2:
 112                                 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
 113                                 break;
 114                         case 0x1:
 115                                 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
 116                                 break;
 117                         case 0x0:
 118                                 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
 119                                 break;
 120                         }
 121                 } else {
 122                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 123
 124                         report = p_drvinfo->cfosho[0] & 0x60;
 125                         report = report >> 5;
 126                         switch (report) {
 127                         case 0x3:
 128                                 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
 129                                 break;
 130                         case 0x2:
 131                                 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
 132                                 break;
 133                         case 0x1:
 134                                 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
 135                                 break;
 136                         case 0x0:
 137                                 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
 138                                 break;
 139                         }
 140                 }
 141
 142                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 143                 /* CCK gain is smaller than OFDM/MCS gain,
 144                  * so we add gain diff by experiences,
 145                  * the val is 6
 146                  */
 147                 pwdb_all += 6;
 148                 if (pwdb_all > 100)
 149                         pwdb_all = 100;
 150                 /* modify the offset to make the same
 151                  * gain index with OFDM.
 152                  */
 153                 if (pwdb_all > 34 && pwdb_all <= 42)
 154                         pwdb_all -= 2;
 155                 else if (pwdb_all > 26 && pwdb_all <= 34)
 156                         pwdb_all -= 6;
 157                 else if (pwdb_all > 14 && pwdb_all <= 26)
 158                         pwdb_all -= 8;
 159                 else if (pwdb_all > 4 && pwdb_all <= 14)
 160                         pwdb_all -= 4;
 161
 162                 pstats->rx_pwdb_all = pwdb_all;
 163                 pstats->recvsignalpower = rx_pwr_all;
 164
 165                 /* (3) Get Signal Quality (EVM) */
 166                 if (packet_match_bssid) {
 167                         u8 sq;
 168
 169                         if (pstats->rx_pwdb_all > 40)
 170                                 sq = 100;
 171                         else {
 172                                 sq = cck_buf->sq_rpt;
 173                                 if (sq > 64)
 174                                         sq = 0;
 175                                 else if (sq < 20)
 176                                         sq = 100;
 177                                 else
 178                                         sq = ((64 - sq) * 100) / 44;
 179                         }
 180
 181                         pstats->signalquality = sq;
 182                         pstats->rx_mimo_sig_qual[0] = sq;
 183                         pstats->rx_mimo_sig_qual[1] = -1;
 184                 }
 185         } else {
 186                 rtlpriv->dm.rfpath_rxenable[0] =
 187                     rtlpriv->dm.rfpath_rxenable[1] = true;
 188                 /* (1)Get RSSI for HT rate */
 189                 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 190                         /* we will judge RF RX path now. */
 191                         if (rtlpriv->dm.rfpath_rxenable[i])
 192                                 rf_rx_num++;
 193
 194                         rx_pwr[i] =
 195                             ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
 196                         /* Translate DBM to percentage. */
 197                         rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
 198                         total_rssi += rssi;
 199                         /* Get Rx snr value in DB */
 200                         rtlpriv->stats.rx_snr_db[i] =
 201                             (long)(p_drvinfo->rxsnr[i] / 2);
 202
 203                         /* Record Signal Strength for next packet */
 204                         if (packet_match_bssid)
 205                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 206                 }
 207
 208                 /* (2)PWDB, Average PWDB cacluated by
 209                  * hardware (for rate adaptive)
 210                  */
 211                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 212                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 213                 pstats->rx_pwdb_all = pwdb_all;
 214                 pstats->rxpower = rx_pwr_all;
 215                 pstats->recvsignalpower = rx_pwr_all;
 216
 217                 /* (3)EVM of HT rate */
 218                 if (pstats->is_ht && pstats->rate >= DESC_RATEMCS8 &&
 219                     pstats->rate <= DESC_RATEMCS15)
 220                         max_spatial_stream = 2;
 221                 else
 222                         max_spatial_stream = 1;
 223
 224                 for (i = 0; i < max_spatial_stream; i++) {
 225                         evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 226
 227                         if (packet_match_bssid) {
 228                                 /* Fill value in RFD, Get the first
 229                                  * spatial stream only
 230                                  */
 231                                 if (i == 0)
 232                                         pstats->signalquality =
 233                                             (u8)(evm & 0xff);
 234                                 pstats->rx_mimo_sig_qual[i] = (u8)(evm & 0xff);
 235                         }
 236                 }
 237         }
 238
 239         /* UI BSS List signal strength(in percentage),
 240          * make it good looking, from 0~100.
 241          */
 242         if (is_cck_rate)
 243                 pstats->signalstrength =
 244                     (u8)(_rtl92ce_signal_scale_mapping(hw, pwdb_all));
 245         else if (rf_rx_num != 0)
 246                 pstats->signalstrength =
 247                     (u8)(_rtl92ce_signal_scale_mapping
 248                           (hw, total_rssi /= rf_rx_num));
 249 }
 250
 251 static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 252                                                struct sk_buff *skb,
 253                                                struct rtl_stats *pstats,
 254                                                struct rx_desc_92c *pdesc,
 255                                                struct rx_fwinfo_92c *p_drvinfo)
 256 {
 257         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 258         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 259
 260         struct ieee80211_hdr *hdr;
 261         u8 *tmp_buf;
 262         u8 *praddr;
 263         __le16 fc;
 264         u16 type, c_fc;
 265         bool packet_matchbssid, packet_toself, packet_beacon = false;
 266
 267         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
 268
 269         hdr = (struct ieee80211_hdr *)tmp_buf;
 270         fc = hdr->frame_control;
 271         c_fc = le16_to_cpu(fc);
 272         type = WLAN_FC_GET_TYPE(fc);
 273         praddr = hdr->addr1;
 274
 275         packet_matchbssid =
 276             ((IEEE80211_FTYPE_CTL != type) &&
 277              ether_addr_equal(mac->bssid,
 278                               (c_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
 279                               (c_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
 280                               hdr->addr3) &&
 281              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
 282
 283         packet_toself = packet_matchbssid &&
 284              ether_addr_equal(praddr, rtlefuse->dev_addr);
 285
 286         if (ieee80211_is_beacon(fc))
 287                 packet_beacon = true;
 288
 289         _rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 290                                    packet_matchbssid, packet_toself,
 291                                    packet_beacon);
 292
 293         rtl_process_phyinfo(hw, tmp_buf, pstats);
 294 }
 295
 296 bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
 297                            struct rtl_stats *stats,
 298                            struct ieee80211_rx_status *rx_status,
 299                            u8 *p_desc8, struct sk_buff *skb)
 300 {
 301         struct rx_fwinfo_92c *p_drvinfo;
 302         struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc8;
 303         struct ieee80211_hdr *hdr;
 304         __le32 *p_desc = (__le32 *)p_desc8;
 305         u32 phystatus = get_rx_desc_physt(p_desc);
 306
 307         stats->length = (u16)get_rx_desc_pkt_len(p_desc);
 308         stats->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(p_desc) *
 309             RX_DRV_INFO_SIZE_UNIT;
 310         stats->rx_bufshift = (u8)(get_rx_desc_shift(p_desc) & 0x03);
 311         stats->icv = (u16)get_rx_desc_icv(p_desc);
 312         stats->crc = (u16)get_rx_desc_crc32(p_desc);
 313         stats->hwerror = (stats->crc | stats->icv);
 314         stats->decrypted = !get_rx_desc_swdec(p_desc);
 315         stats->rate = (u8)get_rx_desc_rxmcs(p_desc);
 316         stats->shortpreamble = (u16)get_rx_desc_splcp(p_desc);
 317         stats->isampdu = (bool)(get_rx_desc_paggr(p_desc) == 1);
 318         stats->isfirst_ampdu = (bool)((get_rx_desc_paggr(p_desc) == 1) &&
 319                                       (get_rx_desc_faggr(p_desc) == 1));
 320         stats->timestamp_low = get_rx_desc_tsfl(p_desc);
 321         stats->rx_is40mhzpacket = (bool)get_rx_desc_bw(p_desc);
 322         stats->is_ht = (bool)get_rx_desc_rxht(p_desc);
 323
 324         stats->is_cck = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
 325
 326         rx_status->freq = hw->conf.chandef.chan->center_freq;
 327         rx_status->band = hw->conf.chandef.chan->band;
 328
 329         hdr = (struct ieee80211_hdr *)(skb->data + stats->rx_drvinfo_size
 330                         + stats->rx_bufshift);
 331
 332         if (stats->crc)
 333                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 334
 335         if (stats->rx_is40mhzpacket)
 336                 rx_status->bw = RATE_INFO_BW_40;
 337
 338         if (stats->is_ht)
 339                 rx_status->encoding = RX_ENC_HT;
 340
 341         rx_status->flag |= RX_FLAG_MACTIME_START;
 342
 343         /* hw will set stats->decrypted true, if it finds the
 344          * frame is open data frame or mgmt frame.
 345          * So hw will not decryption robust managment frame
 346          * for IEEE80211w but still set status->decrypted
 347          * true, so here we should set it back to undecrypted
 348          * for IEEE80211w frame, and mac80211 sw will help
 349          * to decrypt it
 350          */
 351         if (stats->decrypted) {
 352                 if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
 353                     (ieee80211_has_protected(hdr->frame_control)))
 354                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 355                 else
 356                         rx_status->flag |= RX_FLAG_DECRYPTED;
 357         }
 358         /* rate_idx: index of data rate into band's
 359          * supported rates or MCS index if HT rates
 360          * are use (RX_FLAG_HT)
 361          * Notice: this is diff with windows define
 362          */
 363         rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
 364                                                    false, stats->rate);
 365
 366         rx_status->mactime = stats->timestamp_low;
 367         if (phystatus) {
 368                 p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
 369                                                      stats->rx_bufshift);
 370
 371                 _rtl92ce_translate_rx_signal_stuff(hw,
 372                                                    skb, stats, pdesc,
 373                                                    p_drvinfo);
 374         }
 375
 376         /*rx_status->qual = stats->signal; */
 377         rx_status->signal = stats->recvsignalpower + 10;
 378
 379         return true;
 380 }
 381
 382 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
 383                           struct ieee80211_hdr *hdr, u8 *pdesc8,
 384                           u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
 385                           struct ieee80211_sta *sta,
 386                           struct sk_buff *skb,
 387                           u8 hw_queue, struct rtl_tcb_desc *tcb_desc)
 388 {
 389         struct rtl_priv *rtlpriv = rtl_priv(hw);
 390         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 391         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 392         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 393         bool defaultadapter = true;
 394         __le32 *pdesc = (__le32 *)pdesc8;
 395         u16 seq_number;
 396         __le16 fc = hdr->frame_control;
 397         u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue(skb, hw_queue);
 398         bool firstseg = ((hdr->seq_ctrl &
 399                           cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 400
 401         bool lastseg = ((hdr->frame_control &
 402                          cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 403
 404         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 405                                             skb->data, skb->len,
 406                                             PCI_DMA_TODEVICE);
 407
 408         u8 bw_40 = 0;
 409
 410         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 411                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 412                          "DMA mapping error\n");
 413                 return;
 414         }
 415         rcu_read_lock();
 416         sta = get_sta(hw, mac->vif, mac->bssid);
 417         if (mac->opmode == NL80211_IFTYPE_STATION) {
 418                 bw_40 = mac->bw_40;
 419         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 420                    mac->opmode == NL80211_IFTYPE_ADHOC ||
 421                    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 422                 if (sta)
 423                         bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
 424         }
 425
 426         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 427
 428         rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
 429
 430         clear_pci_tx_desc_content(pdesc, sizeof(struct tx_desc_92c));
 431
 432         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 433                 firstseg = true;
 434                 lastseg = true;
 435         }
 436         if (firstseg) {
 437                 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
 438
 439                 set_tx_desc_tx_rate(pdesc, tcb_desc->hw_rate);
 440
 441                 if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
 442                         set_tx_desc_data_shortgi(pdesc, 1);
 443
 444                 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 445                         set_tx_desc_agg_break(pdesc, 1);
 446                         set_tx_desc_max_agg_num(pdesc, 0x14);
 447                 }
 448                 set_tx_desc_seq(pdesc, seq_number);
 449
 450                 set_tx_desc_rts_enable(pdesc, ((tcb_desc->rts_enable &&
 451                                                 !tcb_desc->
 452                                                 cts_enable) ? 1 : 0));
 453                 set_tx_desc_hw_rts_enable(pdesc,
 454                                           ((tcb_desc->rts_enable
 455                                             || tcb_desc->cts_enable) ? 1 : 0));
 456                 set_tx_desc_cts2self(pdesc, ((tcb_desc->cts_enable) ? 1 : 0));
 457                 set_tx_desc_rts_stbc(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
 458
 459                 set_tx_desc_rts_rate(pdesc, tcb_desc->rts_rate);
 460                 set_tx_desc_rts_bw(pdesc, 0);
 461                 set_tx_desc_rts_sc(pdesc, tcb_desc->rts_sc);
 462                 set_tx_desc_rts_short(pdesc,
 463                                       ((tcb_desc->rts_rate <= DESC_RATE54M) ?
 464                                        (tcb_desc->rts_use_shortpreamble ? 1 : 0)
 465                                        : (tcb_desc->rts_use_shortgi ? 1 : 0)));
 466
 467                 if (bw_40) {
 468                         if (tcb_desc->packet_bw) {
 469                                 set_tx_desc_data_bw(pdesc, 1);
 470                                 set_tx_desc_tx_sub_carrier(pdesc, 3);
 471                         } else {
 472                                 set_tx_desc_data_bw(pdesc, 0);
 473                                 set_tx_desc_tx_sub_carrier(pdesc,
 474                                                  mac->cur_40_prime_sc);
 475                         }
 476                 } else {
 477                         set_tx_desc_data_bw(pdesc, 0);
 478                         set_tx_desc_tx_sub_carrier(pdesc, 0);
 479                 }
 480
 481                 set_tx_desc_linip(pdesc, 0);
 482                 set_tx_desc_pkt_size(pdesc, (u16)skb->len);
 483
 484                 if (sta) {
 485                         u8 ampdu_density = sta->ht_cap.ampdu_density;
 486
 487                         set_tx_desc_ampdu_density(pdesc, ampdu_density);
 488                 }
 489
 490                 if (info->control.hw_key) {
 491                         struct ieee80211_key_conf *keyconf =
 492                             info->control.hw_key;
 493
 494                         switch (keyconf->cipher) {
 495                         case WLAN_CIPHER_SUITE_WEP40:
 496                         case WLAN_CIPHER_SUITE_WEP104:
 497                         case WLAN_CIPHER_SUITE_TKIP:
 498                                 set_tx_desc_sec_type(pdesc, 0x1);
 499                                 break;
 500                         case WLAN_CIPHER_SUITE_CCMP:
 501                                 set_tx_desc_sec_type(pdesc, 0x3);
 502                                 break;
 503                         default:
 504                                 set_tx_desc_sec_type(pdesc, 0x0);
 505                                 break;
 506
 507                         }
 508                 }
 509
 510                 set_tx_desc_pkt_id(pdesc, 0);
 511                 set_tx_desc_queue_sel(pdesc, fw_qsel);
 512
 513                 set_tx_desc_data_rate_fb_limit(pdesc, 0x1F);
 514                 set_tx_desc_rts_rate_fb_limit(pdesc, 0xF);
 515                 set_tx_desc_disable_fb(pdesc, 0);
 516                 set_tx_desc_use_rate(pdesc, tcb_desc->use_driver_rate ? 1 : 0);
 517
 518                 if (ieee80211_is_data_qos(fc)) {
 519                         if (mac->rdg_en) {
 520                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 521                                          "Enable RDG function\n");
 522                                 set_tx_desc_rdg_enable(pdesc, 1);
 523                                 set_tx_desc_htc(pdesc, 1);
 524                         }
 525                 }
 526         }
 527         rcu_read_unlock();
 528
 529         set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0));
 530         set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0));
 531
 532         set_tx_desc_tx_buffer_size(pdesc, (u16)skb->len);
 533
 534         set_tx_desc_tx_buffer_address(pdesc, mapping);
 535
 536         if (rtlpriv->dm.useramask) {
 537                 set_tx_desc_rate_id(pdesc, tcb_desc->ratr_index);
 538                 set_tx_desc_macid(pdesc, tcb_desc->mac_id);
 539         } else {
 540                 set_tx_desc_rate_id(pdesc, 0xC + tcb_desc->ratr_index);
 541                 set_tx_desc_macid(pdesc, tcb_desc->ratr_index);
 542         }
 543
 544         if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
 545                 set_tx_desc_hwseq_en(pdesc, 1);
 546                 set_tx_desc_pkt_id(pdesc, 8);
 547
 548                 if (!defaultadapter)
 549                         set_tx_desc_qos(pdesc, 1);
 550         }
 551
 552         set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1));
 553
 554         if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 555             is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
 556                 set_tx_desc_bmc(pdesc, 1);
 557         }
 558
 559         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 560 }
 561
 562 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
 563                              u8 *pdesc8, bool firstseg,
 564                              bool lastseg, struct sk_buff *skb)
 565 {
 566         struct rtl_priv *rtlpriv = rtl_priv(hw);
 567         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 568         u8 fw_queue = QSLT_BEACON;
 569         __le32 *pdesc = (__le32 *)pdesc8;
 570
 571         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 572                                             skb->data, skb->len,
 573                                             PCI_DMA_TODEVICE);
 574
 575         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 576         __le16 fc = hdr->frame_control;
 577
 578         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 579                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 580                          "DMA mapping error\n");
 581                 return;
 582         }
 583         clear_pci_tx_desc_content(pdesc, TX_DESC_SIZE);
 584
 585         if (firstseg)
 586                 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
 587
 588         set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
 589
 590         set_tx_desc_seq(pdesc, 0);
 591
 592         set_tx_desc_linip(pdesc, 0);
 593
 594         set_tx_desc_queue_sel(pdesc, fw_queue);
 595
 596         set_tx_desc_first_seg(pdesc, 1);
 597         set_tx_desc_last_seg(pdesc, 1);
 598
 599         set_tx_desc_tx_buffer_size(pdesc, (u16)(skb->len));
 600
 601         set_tx_desc_tx_buffer_address(pdesc, mapping);
 602
 603         set_tx_desc_rate_id(pdesc, 7);
 604         set_tx_desc_macid(pdesc, 0);
 605
 606         set_tx_desc_own(pdesc, 1);
 607
 608         set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
 609
 610         set_tx_desc_first_seg(pdesc, 1);
 611         set_tx_desc_last_seg(pdesc, 1);
 612
 613         set_tx_desc_offset(pdesc, 0x20);
 614
 615         set_tx_desc_use_rate(pdesc, 1);
 616
 617         if (!ieee80211_is_data_qos(fc)) {
 618                 set_tx_desc_hwseq_en(pdesc, 1);
 619                 set_tx_desc_pkt_id(pdesc, 8);
 620         }
 621
 622         RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 623                       "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
 624 }
 625
 626 void rtl92ce_set_desc(struct ieee80211_hw *hw, u8 *pdesc8, bool istx,
 627                       u8 desc_name, u8 *val)
 628 {
 629         __le32 *pdesc = (__le32 *)pdesc8;
 630
 631         if (istx) {
 632                 switch (desc_name) {
 633                 case HW_DESC_OWN:
 634                         wmb();
 635                         set_tx_desc_own(pdesc, 1);
 636                         break;
 637                 case HW_DESC_TX_NEXTDESC_ADDR:
 638                         set_tx_desc_next_desc_address(pdesc, *(u32 *)val);
 639                         break;
 640                 default:
 641                         WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\n",
 642                                   desc_name);
 643                         break;
 644                 }
 645         } else {
 646                 switch (desc_name) {
 647                 case HW_DESC_RXOWN:
 648                         wmb();
 649                         set_rx_desc_own(pdesc, 1);
 650                         break;
 651                 case HW_DESC_RXBUFF_ADDR:
 652                         set_rx_desc_buff_addr(pdesc, *(u32 *)val);
 653                         break;
 654                 case HW_DESC_RXPKT_LEN:
 655                         set_rx_desc_pkt_len(pdesc, *(u32 *)val);
 656                         break;
 657                 case HW_DESC_RXERO:
 658                         set_rx_desc_eor(pdesc, 1);
 659                         break;
 660                 default:
 661                         WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
 662                                   desc_name);
 663                         break;
 664                 }
 665         }
 666 }
 667
 668 u64 rtl92ce_get_desc(struct ieee80211_hw *hw, u8 *p_desc8,
 669                      bool istx, u8 desc_name)
 670 {
 671         u32 ret = 0;
 672         __le32 *p_desc = (__le32 *)p_desc8;
 673
 674         if (istx) {
 675                 switch (desc_name) {
 676                 case HW_DESC_OWN:
 677                         ret = get_tx_desc_own(p_desc);
 678                         break;
 679                 case HW_DESC_TXBUFF_ADDR:
 680                         ret = get_tx_desc_tx_buffer_address(p_desc);
 681                         break;
 682                 default:
 683                         WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\n",
 684                                   desc_name);
 685                         break;
 686                 }
 687         } else {
 688                 switch (desc_name) {
 689                 case HW_DESC_OWN:
 690                         ret = get_rx_desc_own(p_desc);
 691                         break;
 692                 case HW_DESC_RXPKT_LEN:
 693                         ret = get_rx_desc_pkt_len(p_desc);
 694                         break;
 695                 case HW_DESC_RXBUFF_ADDR:
 696                         ret = get_rx_desc_buff_addr(p_desc);
 697                         break;
 698                 default:
 699                         WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
 700                                   desc_name);
 701                         break;
 702                 }
 703         }
 704         return ret;
 705 }
 706
 707 bool rtl92ce_is_tx_desc_closed(struct ieee80211_hw *hw,
 708                                u8 hw_queue, u16 index)
 709 {
 710         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 711         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 712         u8 *entry = (u8 *)(&ring->desc[ring->idx]);
 713         u8 own = (u8)rtl92ce_get_desc(hw, entry, true, HW_DESC_OWN);
 714
 715         /*beacon packet will only use the first
 716          *descriptor defautly,and the own may not
 717          *be cleared by the hardware
 718          */
 719         if (own)
 720                 return false;
 721         return true;
 722 }
 723
 724 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 725 {
 726         struct rtl_priv *rtlpriv = rtl_priv(hw);
 727
 728         if (hw_queue == BEACON_QUEUE) {
 729                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
 730         } else {
 731                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
 732                                BIT(0) << (hw_queue));
 733         }
 734 }
 735