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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2012  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
  36 static u8 _rtl92ce_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
  37 {
  38         __le16 fc = rtl_get_fc(skb);
  39
  40         if (unlikely(ieee80211_is_beacon(fc)))
  41                 return QSLT_BEACON;
  42         if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  43                 return QSLT_MGNT;
  44
  45         return skb->priority;
  46 }
  47
  48 static u8 _rtl92c_query_rxpwrpercentage(s8 antpower)
  49 {
  50         if ((antpower <= -100) || (antpower >= 20))
  51                 return 0;
  52         else if (antpower >= 0)
  53                 return 100;
  54         else
  55                 return 100 + antpower;
  56 }
  57
  58 static u8 _rtl92c_evm_db_to_percentage(s8 value)
  59 {
  60         s8 ret_val;
  61         ret_val = value;
  62
  63         if (ret_val >= 0)
  64                 ret_val = 0;
  65
  66         if (ret_val <= -33)
  67                 ret_val = -33;
  68
  69         ret_val = 0 - ret_val;
  70         ret_val *= 3;
  71
  72         if (ret_val == 99)
  73                 ret_val = 100;
  74
  75         return ret_val;
  76 }
  77
  78 static long _rtl92ce_signal_scale_mapping(struct ieee80211_hw *hw,
  79                 long currsig)
  80 {
  81         long retsig;
  82
  83         if (currsig >= 61 && currsig <= 100)
  84                 retsig = 90 + ((currsig - 60) / 4);
  85         else if (currsig >= 41 && currsig <= 60)
  86                 retsig = 78 + ((currsig - 40) / 2);
  87         else if (currsig >= 31 && currsig <= 40)
  88                 retsig = 66 + (currsig - 30);
  89         else if (currsig >= 21 && currsig <= 30)
  90                 retsig = 54 + (currsig - 20);
  91         else if (currsig >= 5 && currsig <= 20)
  92                 retsig = 42 + (((currsig - 5) * 2) / 3);
  93         else if (currsig == 4)
  94                 retsig = 36;
  95         else if (currsig == 3)
  96                 retsig = 27;
  97         else if (currsig == 2)
  98                 retsig = 18;
  99         else if (currsig == 1)
 100                 retsig = 9;
 101         else
 102                 retsig = currsig;
 103
 104         return retsig;
 105 }
 106
 107 static void _rtl92ce_query_rxphystatus(struct ieee80211_hw *hw,
 108                                        struct rtl_stats *pstats,
 109                                        struct rx_desc_92c *pdesc,
 110                                        struct rx_fwinfo_92c *p_drvinfo,
 111                                        bool packet_match_bssid,
 112                                        bool packet_toself,
 113                                        bool packet_beacon)
 114 {
 115         struct rtl_priv *rtlpriv = rtl_priv(hw);
 116         struct phy_sts_cck_8192s_t *cck_buf;
 117         struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
 118         s8 rx_pwr_all = 0, rx_pwr[4];
 119         u8 evm, pwdb_all, rf_rx_num = 0;
 120         u8 i, max_spatial_stream;
 121         u32 rssi, total_rssi = 0;
 122         bool is_cck_rate;
 123
 124         is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
 125         pstats->packet_matchbssid = packet_match_bssid;
 126         pstats->packet_toself = packet_toself;
 127         pstats->is_cck = is_cck_rate;
 128         pstats->packet_beacon = packet_beacon;
 129         pstats->rx_mimo_sig_qual[0] = -1;
 130         pstats->rx_mimo_sig_qual[1] = -1;
 131
 132         if (is_cck_rate) {
 133                 u8 report, cck_highpwr;
 134                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
 135
 136                 if (ppsc->rfpwr_state == ERFON)
 137                         cck_highpwr = (u8) rtl_get_bbreg(hw,
 138                                                  RFPGA0_XA_HSSIPARAMETER2,
 139                                                  BIT(9));
 140                 else
 141                         cck_highpwr = false;
 142
 143                 if (!cck_highpwr) {
 144                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 145                         report = cck_buf->cck_agc_rpt & 0xc0;
 146                         report = report >> 6;
 147                         switch (report) {
 148                         case 0x3:
 149                                 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
 150                                 break;
 151                         case 0x2:
 152                                 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
 153                                 break;
 154                         case 0x1:
 155                                 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
 156                                 break;
 157                         case 0x0:
 158                                 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
 159                                 break;
 160                         }
 161                 } else {
 162                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 163                         report = p_drvinfo->cfosho[0] & 0x60;
 164                         report = report >> 5;
 165                         switch (report) {
 166                         case 0x3:
 167                                 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
 168                                 break;
 169                         case 0x2:
 170                                 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
 171                                 break;
 172                         case 0x1:
 173                                 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
 174                                 break;
 175                         case 0x0:
 176                                 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
 177                                 break;
 178                         }
 179                 }
 180
 181                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 182                 /* CCK gain is smaller than OFDM/MCS gain,
 183                  * so we add gain diff by experiences,
 184                  * the val is 6
 185                  */
 186                 pwdb_all += 6;
 187                 if (pwdb_all > 100)
 188                         pwdb_all = 100;
 189                 /* modify the offset to make the same
 190                  * gain index with OFDM.
 191                  */
 192                 if (pwdb_all > 34 && pwdb_all <= 42)
 193                         pwdb_all -= 2;
 194                 else if (pwdb_all > 26 && pwdb_all <= 34)
 195                         pwdb_all -= 6;
 196                 else if (pwdb_all > 14 && pwdb_all <= 26)
 197                         pwdb_all -= 8;
 198                 else if (pwdb_all > 4 && pwdb_all <= 14)
 199                         pwdb_all -= 4;
 200
 201                 pstats->rx_pwdb_all = pwdb_all;
 202                 pstats->recvsignalpower = rx_pwr_all;
 203
 204                 /* (3) Get Signal Quality (EVM) */
 205                 if (packet_match_bssid) {
 206                         u8 sq;
 207                         if (pstats->rx_pwdb_all > 40)
 208                                 sq = 100;
 209                         else {
 210                                 sq = cck_buf->sq_rpt;
 211                                 if (sq > 64)
 212                                         sq = 0;
 213                                 else if (sq < 20)
 214                                         sq = 100;
 215                                 else
 216                                         sq = ((64 - sq) * 100) / 44;
 217                         }
 218
 219                         pstats->signalquality = sq;
 220                         pstats->rx_mimo_sig_qual[0] = sq;
 221                         pstats->rx_mimo_sig_qual[1] = -1;
 222                 }
 223         } else {
 224                 rtlpriv->dm.rfpath_rxenable[0] =
 225                     rtlpriv->dm.rfpath_rxenable[1] = true;
 226                 /* (1)Get RSSI for HT rate */
 227                 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 228                         /* we will judge RF RX path now. */
 229                         if (rtlpriv->dm.rfpath_rxenable[i])
 230                                 rf_rx_num++;
 231
 232                         rx_pwr[i] =
 233                             ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
 234                         /* Translate DBM to percentage. */
 235                         rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
 236                         total_rssi += rssi;
 237                         /* Get Rx snr value in DB */
 238                         rtlpriv->stats.rx_snr_db[i] =
 239                             (long)(p_drvinfo->rxsnr[i] / 2);
 240
 241                         /* Record Signal Strength for next packet */
 242                         if (packet_match_bssid)
 243                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 244                 }
 245
 246                 /* (2)PWDB, Average PWDB cacluated by
 247                  * hardware (for rate adaptive)
 248                  */
 249                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 250                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 251                 pstats->rx_pwdb_all = pwdb_all;
 252                 pstats->rxpower = rx_pwr_all;
 253                 pstats->recvsignalpower = rx_pwr_all;
 254
 255                 /* (3)EVM of HT rate */
 256                 if (pstats->is_ht && pstats->rate >= DESC_RATEMCS8 &&
 257                     pstats->rate <= DESC_RATEMCS15)
 258                         max_spatial_stream = 2;
 259                 else
 260                         max_spatial_stream = 1;
 261
 262                 for (i = 0; i < max_spatial_stream; i++) {
 263                         evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 264
 265                         if (packet_match_bssid) {
 266                                 /* Fill value in RFD, Get the first
 267                                  * spatial stream only
 268                                  */
 269                                 if (i == 0)
 270                                         pstats->signalquality =
 271                                             (u8) (evm & 0xff);
 272                                 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
 273                         }
 274                 }
 275         }
 276
 277         /* UI BSS List signal strength(in percentage),
 278          * make it good looking, from 0~100.
 279          */
 280         if (is_cck_rate)
 281                 pstats->signalstrength =
 282                     (u8) (_rtl92ce_signal_scale_mapping(hw, pwdb_all));
 283         else if (rf_rx_num != 0)
 284                 pstats->signalstrength =
 285                     (u8) (_rtl92ce_signal_scale_mapping
 286                           (hw, total_rssi /= rf_rx_num));
 287 }
 288
 289 static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 290                                                struct sk_buff *skb,
 291                                                struct rtl_stats *pstats,
 292                                                struct rx_desc_92c *pdesc,
 293                                                struct rx_fwinfo_92c *p_drvinfo)
 294 {
 295         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 296         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 297
 298         struct ieee80211_hdr *hdr;
 299         u8 *tmp_buf;
 300         u8 *praddr;
 301         __le16 fc;
 302         u16 type, c_fc;
 303         bool packet_matchbssid, packet_toself, packet_beacon = false;
 304
 305         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
 306
 307         hdr = (struct ieee80211_hdr *)tmp_buf;
 308         fc = hdr->frame_control;
 309         c_fc = le16_to_cpu(fc);
 310         type = WLAN_FC_GET_TYPE(fc);
 311         praddr = hdr->addr1;
 312
 313         packet_matchbssid =
 314             ((IEEE80211_FTYPE_CTL != type) &&
 315              ether_addr_equal(mac->bssid,
 316                               (c_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
 317                               (c_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
 318                               hdr->addr3) &&
 319              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
 320
 321         packet_toself = packet_matchbssid &&
 322              ether_addr_equal(praddr, rtlefuse->dev_addr);
 323
 324         if (ieee80211_is_beacon(fc))
 325                 packet_beacon = true;
 326
 327         _rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 328                                    packet_matchbssid, packet_toself,
 329                                    packet_beacon);
 330
 331         rtl_process_phyinfo(hw, tmp_buf, pstats);
 332 }
 333
 334 bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
 335                            struct rtl_stats *stats,
 336                            struct ieee80211_rx_status *rx_status,
 337                            u8 *p_desc, struct sk_buff *skb)
 338 {
 339         struct rx_fwinfo_92c *p_drvinfo;
 340         struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
 341         struct ieee80211_hdr *hdr;
 342         u32 phystatus = GET_RX_DESC_PHYST(pdesc);
 343         stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
 344         stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
 345             RX_DRV_INFO_SIZE_UNIT;
 346         stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
 347         stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
 348         stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
 349         stats->hwerror = (stats->crc | stats->icv);
 350         stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 351         stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
 352         stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
 353         stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
 354         stats->isfirst_ampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
 355                                    && (GET_RX_DESC_FAGGR(pdesc) == 1));
 356         stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 357         stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
 358         stats->is_ht = (bool)GET_RX_DESC_RXHT(pdesc);
 359
 360         stats->is_cck = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
 361
 362         rx_status->freq = hw->conf.chandef.chan->center_freq;
 363         rx_status->band = hw->conf.chandef.chan->band;
 364
 365         hdr = (struct ieee80211_hdr *)(skb->data + stats->rx_drvinfo_size
 366                         + stats->rx_bufshift);
 367
 368         if (stats->crc)
 369                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 370
 371         if (stats->rx_is40Mhzpacket)
 372                 rx_status->bw = RATE_INFO_BW_40;
 373
 374         if (stats->is_ht)
 375                 rx_status->encoding = RX_ENC_HT;
 376
 377         rx_status->flag |= RX_FLAG_MACTIME_START;
 378
 379         /* hw will set stats->decrypted true, if it finds the
 380          * frame is open data frame or mgmt frame.
 381          * So hw will not decryption robust managment frame
 382          * for IEEE80211w but still set status->decrypted
 383          * true, so here we should set it back to undecrypted
 384          * for IEEE80211w frame, and mac80211 sw will help
 385          * to decrypt it
 386          */
 387         if (stats->decrypted) {
 388                 if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
 389                     (ieee80211_has_protected(hdr->frame_control)))
 390                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 391                 else
 392                         rx_status->flag |= RX_FLAG_DECRYPTED;
 393         }
 394         /* rate_idx: index of data rate into band's
 395          * supported rates or MCS index if HT rates
 396          * are use (RX_FLAG_HT)
 397          * Notice: this is diff with windows define
 398          */
 399         rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
 400                                                    false, stats->rate);
 401
 402         rx_status->mactime = stats->timestamp_low;
 403         if (phystatus) {
 404                 p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
 405                                                      stats->rx_bufshift);
 406
 407                 _rtl92ce_translate_rx_signal_stuff(hw,
 408                                                    skb, stats, pdesc,
 409                                                    p_drvinfo);
 410         }
 411
 412         /*rx_status->qual = stats->signal; */
 413         rx_status->signal = stats->recvsignalpower + 10;
 414
 415         return true;
 416 }
 417
 418 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
 419                           struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 420                           u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
 421                           struct ieee80211_sta *sta,
 422                           struct sk_buff *skb,
 423                           u8 hw_queue, struct rtl_tcb_desc *tcb_desc)
 424 {
 425         struct rtl_priv *rtlpriv = rtl_priv(hw);
 426         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 427         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 428         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 429         bool defaultadapter = true;
 430         u8 *pdesc = pdesc_tx;
 431         u16 seq_number;
 432         __le16 fc = hdr->frame_control;
 433         u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue(skb, hw_queue);
 434         bool firstseg = ((hdr->seq_ctrl &
 435                           cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 436
 437         bool lastseg = ((hdr->frame_control &
 438                          cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 439
 440         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 441                                             skb->data, skb->len,
 442                                             PCI_DMA_TODEVICE);
 443
 444         u8 bw_40 = 0;
 445
 446         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 447                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 448                          "DMA mapping error\n");
 449                 return;
 450         }
 451         rcu_read_lock();
 452         sta = get_sta(hw, mac->vif, mac->bssid);
 453         if (mac->opmode == NL80211_IFTYPE_STATION) {
 454                 bw_40 = mac->bw_40;
 455         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 456                    mac->opmode == NL80211_IFTYPE_ADHOC ||
 457                    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 458                 if (sta)
 459                         bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
 460         }
 461
 462         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 463
 464         rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
 465
 466         CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92c));
 467
 468         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 469                 firstseg = true;
 470                 lastseg = true;
 471         }
 472         if (firstseg) {
 473                 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 474
 475                 SET_TX_DESC_TX_RATE(pdesc, tcb_desc->hw_rate);
 476
 477                 if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
 478                         SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
 479
 480                 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 481                         SET_TX_DESC_AGG_BREAK(pdesc, 1);
 482                         SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
 483                 }
 484                 SET_TX_DESC_SEQ(pdesc, seq_number);
 485
 486                 SET_TX_DESC_RTS_ENABLE(pdesc, ((tcb_desc->rts_enable &&
 487                                                 !tcb_desc->
 488                                                 cts_enable) ? 1 : 0));
 489                 SET_TX_DESC_HW_RTS_ENABLE(pdesc,
 490                                           ((tcb_desc->rts_enable
 491                                             || tcb_desc->cts_enable) ? 1 : 0));
 492                 SET_TX_DESC_CTS2SELF(pdesc, ((tcb_desc->cts_enable) ? 1 : 0));
 493                 SET_TX_DESC_RTS_STBC(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
 494
 495                 SET_TX_DESC_RTS_RATE(pdesc, tcb_desc->rts_rate);
 496                 SET_TX_DESC_RTS_BW(pdesc, 0);
 497                 SET_TX_DESC_RTS_SC(pdesc, tcb_desc->rts_sc);
 498                 SET_TX_DESC_RTS_SHORT(pdesc,
 499                                       ((tcb_desc->rts_rate <= DESC_RATE54M) ?
 500                                        (tcb_desc->rts_use_shortpreamble ? 1 : 0)
 501                                        : (tcb_desc->rts_use_shortgi ? 1 : 0)));
 502
 503                 if (bw_40) {
 504                         if (tcb_desc->packet_bw) {
 505                                 SET_TX_DESC_DATA_BW(pdesc, 1);
 506                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
 507                         } else {
 508                                 SET_TX_DESC_DATA_BW(pdesc, 0);
 509                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 510                                                  mac->cur_40_prime_sc);
 511                         }
 512                 } else {
 513                         SET_TX_DESC_DATA_BW(pdesc, 0);
 514                         SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 515                 }
 516
 517                 SET_TX_DESC_LINIP(pdesc, 0);
 518                 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
 519
 520                 if (sta) {
 521                         u8 ampdu_density = sta->ht_cap.ampdu_density;
 522                         SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
 523                 }
 524
 525                 if (info->control.hw_key) {
 526                         struct ieee80211_key_conf *keyconf =
 527                             info->control.hw_key;
 528
 529                         switch (keyconf->cipher) {
 530                         case WLAN_CIPHER_SUITE_WEP40:
 531                         case WLAN_CIPHER_SUITE_WEP104:
 532                         case WLAN_CIPHER_SUITE_TKIP:
 533                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 534                                 break;
 535                         case WLAN_CIPHER_SUITE_CCMP:
 536                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 537                                 break;
 538                         default:
 539                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 540                                 break;
 541
 542                         }
 543                 }
 544
 545                 SET_TX_DESC_PKT_ID(pdesc, 0);
 546                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 547
 548                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 549                 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
 550                 SET_TX_DESC_DISABLE_FB(pdesc, 0);
 551                 SET_TX_DESC_USE_RATE(pdesc, tcb_desc->use_driver_rate ? 1 : 0);
 552
 553                 if (ieee80211_is_data_qos(fc)) {
 554                         if (mac->rdg_en) {
 555                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 556                                          "Enable RDG function\n");
 557                                 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
 558                                 SET_TX_DESC_HTC(pdesc, 1);
 559                         }
 560                 }
 561         }
 562         rcu_read_unlock();
 563
 564         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 565         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 566
 567         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
 568
 569         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 570
 571         if (rtlpriv->dm.useramask) {
 572                 SET_TX_DESC_RATE_ID(pdesc, tcb_desc->ratr_index);
 573                 SET_TX_DESC_MACID(pdesc, tcb_desc->mac_id);
 574         } else {
 575                 SET_TX_DESC_RATE_ID(pdesc, 0xC + tcb_desc->ratr_index);
 576                 SET_TX_DESC_MACID(pdesc, tcb_desc->ratr_index);
 577         }
 578
 579         if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
 580                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 581                 SET_TX_DESC_PKT_ID(pdesc, 8);
 582
 583                 if (!defaultadapter)
 584                         SET_TX_DESC_QOS(pdesc, 1);
 585         }
 586
 587         SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
 588
 589         if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 590             is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
 591                 SET_TX_DESC_BMC(pdesc, 1);
 592         }
 593
 594         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 595 }
 596
 597 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
 598                              u8 *pdesc, bool firstseg,
 599                              bool lastseg, struct sk_buff *skb)
 600 {
 601         struct rtl_priv *rtlpriv = rtl_priv(hw);
 602         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 603         u8 fw_queue = QSLT_BEACON;
 604
 605         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 606                                             skb->data, skb->len,
 607                                             PCI_DMA_TODEVICE);
 608
 609         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 610         __le16 fc = hdr->frame_control;
 611
 612         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 613                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 614                          "DMA mapping error\n");
 615                 return;
 616         }
 617         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
 618
 619         if (firstseg)
 620                 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 621
 622         SET_TX_DESC_TX_RATE(pdesc, DESC_RATE1M);
 623
 624         SET_TX_DESC_SEQ(pdesc, 0);
 625
 626         SET_TX_DESC_LINIP(pdesc, 0);
 627
 628         SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 629
 630         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 631         SET_TX_DESC_LAST_SEG(pdesc, 1);
 632
 633         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) (skb->len));
 634
 635         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 636
 637         SET_TX_DESC_RATE_ID(pdesc, 7);
 638         SET_TX_DESC_MACID(pdesc, 0);
 639
 640         SET_TX_DESC_OWN(pdesc, 1);
 641
 642         SET_TX_DESC_PKT_SIZE(pdesc, (u16) (skb->len));
 643
 644         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 645         SET_TX_DESC_LAST_SEG(pdesc, 1);
 646
 647         SET_TX_DESC_OFFSET(pdesc, 0x20);
 648
 649         SET_TX_DESC_USE_RATE(pdesc, 1);
 650
 651         if (!ieee80211_is_data_qos(fc)) {
 652                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 653                 SET_TX_DESC_PKT_ID(pdesc, 8);
 654         }
 655
 656         RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 657                       "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
 658 }
 659
 660 void rtl92ce_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
 661                       u8 desc_name, u8 *val)
 662 {
 663         if (istx) {
 664                 switch (desc_name) {
 665                 case HW_DESC_OWN:
 666                         wmb();
 667                         SET_TX_DESC_OWN(pdesc, 1);
 668                         break;
 669                 case HW_DESC_TX_NEXTDESC_ADDR:
 670                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
 671                         break;
 672                 default:
 673                         WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\n",
 674                                   desc_name);
 675                         break;
 676                 }
 677         } else {
 678                 switch (desc_name) {
 679                 case HW_DESC_RXOWN:
 680                         wmb();
 681                         SET_RX_DESC_OWN(pdesc, 1);
 682                         break;
 683                 case HW_DESC_RXBUFF_ADDR:
 684                         SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *) val);
 685                         break;
 686                 case HW_DESC_RXPKT_LEN:
 687                         SET_RX_DESC_PKT_LEN(pdesc, *(u32 *) val);
 688                         break;
 689                 case HW_DESC_RXERO:
 690                         SET_RX_DESC_EOR(pdesc, 1);
 691                         break;
 692                 default:
 693                         WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
 694                                   desc_name);
 695                         break;
 696                 }
 697         }
 698 }
 699
 700 u32 rtl92ce_get_desc(u8 *p_desc, bool istx, u8 desc_name)
 701 {
 702         u32 ret = 0;
 703
 704         if (istx) {
 705                 switch (desc_name) {
 706                 case HW_DESC_OWN:
 707                         ret = GET_TX_DESC_OWN(p_desc);
 708                         break;
 709                 case HW_DESC_TXBUFF_ADDR:
 710                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(p_desc);
 711                         break;
 712                 default:
 713                         WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\n",
 714                                   desc_name);
 715                         break;
 716                 }
 717         } else {
 718                 switch (desc_name) {
 719                 case HW_DESC_OWN:
 720                         ret = GET_RX_DESC_OWN(p_desc);
 721                         break;
 722                 case HW_DESC_RXPKT_LEN:
 723                         ret = GET_RX_DESC_PKT_LEN(p_desc);
 724                         break;
 725                 case HW_DESC_RXBUFF_ADDR:
 726                         ret = GET_RX_DESC_BUFF_ADDR(p_desc);
 727                         break;
 728                 default:
 729                         WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
 730                                   desc_name);
 731                         break;
 732                 }
 733         }
 734         return ret;
 735 }
 736
 737 bool rtl92ce_is_tx_desc_closed(struct ieee80211_hw *hw,
 738                                u8 hw_queue, u16 index)
 739 {
 740         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 741         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 742         u8 *entry = (u8 *)(&ring->desc[ring->idx]);
 743         u8 own = (u8)rtl92ce_get_desc(entry, true, HW_DESC_OWN);
 744
 745         /*beacon packet will only use the first
 746          *descriptor defautly,and the own may not
 747          *be cleared by the hardware
 748          */
 749         if (own)
 750                 return false;
 751         return true;
 752 }
 753
 754 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 755 {
 756         struct rtl_priv *rtlpriv = rtl_priv(hw);
 757         if (hw_queue == BEACON_QUEUE) {
 758                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
 759         } else {
 760                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
 761                                BIT(0) << (hw_queue));
 762         }
 763 }
 764