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  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * wlanfae <wlanfae@realtek.com>
  23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  24  * Hsinchu 300, Taiwan.
  25  *
  26  * Larry Finger <Larry.Finger@lwfinger.net>
  27  *
  28  *****************************************************************************/
  29
  30 #include "../wifi.h"
  31 #include "../pci.h"
  32 #include "../base.h"
  33 #include "../stats.h"
  34 #include "reg.h"
  35 #include "def.h"
  36 #include "phy.h"
  37 #include "trx.h"
  38 #include "led.h"
  39
  40 static u8 _rtl92ce_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
  41 {
  42         __le16 fc = rtl_get_fc(skb);
  43
  44         if (unlikely(ieee80211_is_beacon(fc)))
  45                 return QSLT_BEACON;
  46         if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  47                 return QSLT_MGNT;
  48
  49         return skb->priority;
  50 }
  51
  52 static u8 _rtl92c_query_rxpwrpercentage(char antpower)
  53 {
  54         if ((antpower <= -100) || (antpower >= 20))
  55                 return 0;
  56         else if (antpower >= 0)
  57                 return 100;
  58         else
  59                 return 100 + antpower;
  60 }
  61
  62 static u8 _rtl92c_evm_db_to_percentage(char value)
  63 {
  64         char ret_val;
  65         ret_val = value;
  66
  67         if (ret_val >= 0)
  68                 ret_val = 0;
  69
  70         if (ret_val <= -33)
  71                 ret_val = -33;
  72
  73         ret_val = 0 - ret_val;
  74         ret_val *= 3;
  75
  76         if (ret_val == 99)
  77                 ret_val = 100;
  78
  79         return ret_val;
  80 }
  81
  82 static long _rtl92ce_signal_scale_mapping(struct ieee80211_hw *hw,
  83                 long currsig)
  84 {
  85         long retsig;
  86
  87         if (currsig >= 61 && currsig <= 100)
  88                 retsig = 90 + ((currsig - 60) / 4);
  89         else if (currsig >= 41 && currsig <= 60)
  90                 retsig = 78 + ((currsig - 40) / 2);
  91         else if (currsig >= 31 && currsig <= 40)
  92                 retsig = 66 + (currsig - 30);
  93         else if (currsig >= 21 && currsig <= 30)
  94                 retsig = 54 + (currsig - 20);
  95         else if (currsig >= 5 && currsig <= 20)
  96                 retsig = 42 + (((currsig - 5) * 2) / 3);
  97         else if (currsig == 4)
  98                 retsig = 36;
  99         else if (currsig == 3)
 100                 retsig = 27;
 101         else if (currsig == 2)
 102                 retsig = 18;
 103         else if (currsig == 1)
 104                 retsig = 9;
 105         else
 106                 retsig = currsig;
 107
 108         return retsig;
 109 }
 110
 111 static void _rtl92ce_query_rxphystatus(struct ieee80211_hw *hw,
 112                                        struct rtl_stats *pstats,
 113                                        struct rx_desc_92c *pdesc,
 114                                        struct rx_fwinfo_92c *p_drvinfo,
 115                                        bool packet_match_bssid,
 116                                        bool packet_toself,
 117                                        bool packet_beacon)
 118 {
 119         struct rtl_priv *rtlpriv = rtl_priv(hw);
 120         struct phy_sts_cck_8192s_t *cck_buf;
 121         struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
 122         s8 rx_pwr_all = 0, rx_pwr[4];
 123         u8 evm, pwdb_all, rf_rx_num = 0;
 124         u8 i, max_spatial_stream;
 125         u32 rssi, total_rssi = 0;
 126         bool is_cck_rate;
 127
 128         is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
 129         pstats->packet_matchbssid = packet_match_bssid;
 130         pstats->packet_toself = packet_toself;
 131         pstats->is_cck = is_cck_rate;
 132         pstats->packet_beacon = packet_beacon;
 133         pstats->rx_mimo_sig_qual[0] = -1;
 134         pstats->rx_mimo_sig_qual[1] = -1;
 135
 136         if (is_cck_rate) {
 137                 u8 report, cck_highpwr;
 138                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
 139
 140                 if (ppsc->rfpwr_state == ERFON)
 141                         cck_highpwr = (u8) rtl_get_bbreg(hw,
 142                                                  RFPGA0_XA_HSSIPARAMETER2,
 143                                                  BIT(9));
 144                 else
 145                         cck_highpwr = false;
 146
 147                 if (!cck_highpwr) {
 148                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 149                         report = cck_buf->cck_agc_rpt & 0xc0;
 150                         report = report >> 6;
 151                         switch (report) {
 152                         case 0x3:
 153                                 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
 154                                 break;
 155                         case 0x2:
 156                                 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
 157                                 break;
 158                         case 0x1:
 159                                 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
 160                                 break;
 161                         case 0x0:
 162                                 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
 163                                 break;
 164                         }
 165                 } else {
 166                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 167                         report = p_drvinfo->cfosho[0] & 0x60;
 168                         report = report >> 5;
 169                         switch (report) {
 170                         case 0x3:
 171                                 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
 172                                 break;
 173                         case 0x2:
 174                                 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
 175                                 break;
 176                         case 0x1:
 177                                 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
 178                                 break;
 179                         case 0x0:
 180                                 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
 181                                 break;
 182                         }
 183                 }
 184
 185                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 186                 /* CCK gain is smaller than OFDM/MCS gain,
 187                  * so we add gain diff by experiences,
 188                  * the val is 6
 189                  */
 190                 pwdb_all += 6;
 191                 if (pwdb_all > 100)
 192                         pwdb_all = 100;
 193                 /* modify the offset to make the same
 194                  * gain index with OFDM.
 195                  */
 196                 if (pwdb_all > 34 && pwdb_all <= 42)
 197                         pwdb_all -= 2;
 198                 else if (pwdb_all > 26 && pwdb_all <= 34)
 199                         pwdb_all -= 6;
 200                 else if (pwdb_all > 14 && pwdb_all <= 26)
 201                         pwdb_all -= 8;
 202                 else if (pwdb_all > 4 && pwdb_all <= 14)
 203                         pwdb_all -= 4;
 204
 205                 pstats->rx_pwdb_all = pwdb_all;
 206                 pstats->recvsignalpower = rx_pwr_all;
 207
 208                 /* (3) Get Signal Quality (EVM) */
 209                 if (packet_match_bssid) {
 210                         u8 sq;
 211                         if (pstats->rx_pwdb_all > 40)
 212                                 sq = 100;
 213                         else {
 214                                 sq = cck_buf->sq_rpt;
 215                                 if (sq > 64)
 216                                         sq = 0;
 217                                 else if (sq < 20)
 218                                         sq = 100;
 219                                 else
 220                                         sq = ((64 - sq) * 100) / 44;
 221                         }
 222
 223                         pstats->signalquality = sq;
 224                         pstats->rx_mimo_sig_qual[0] = sq;
 225                         pstats->rx_mimo_sig_qual[1] = -1;
 226                 }
 227         } else {
 228                 rtlpriv->dm.rfpath_rxenable[0] =
 229                     rtlpriv->dm.rfpath_rxenable[1] = true;
 230                 /* (1)Get RSSI for HT rate */
 231                 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 232                         /* we will judge RF RX path now. */
 233                         if (rtlpriv->dm.rfpath_rxenable[i])
 234                                 rf_rx_num++;
 235
 236                         rx_pwr[i] =
 237                             ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
 238                         /* Translate DBM to percentage. */
 239                         rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
 240                         total_rssi += rssi;
 241                         /* Get Rx snr value in DB */
 242                         rtlpriv->stats.rx_snr_db[i] =
 243                             (long)(p_drvinfo->rxsnr[i] / 2);
 244
 245                         /* Record Signal Strength for next packet */
 246                         if (packet_match_bssid)
 247                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 248                 }
 249
 250                 /* (2)PWDB, Average PWDB cacluated by
 251                  * hardware (for rate adaptive)
 252                  */
 253                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 254                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 255                 pstats->rx_pwdb_all = pwdb_all;
 256                 pstats->rxpower = rx_pwr_all;
 257                 pstats->recvsignalpower = rx_pwr_all;
 258
 259                 /* (3)EVM of HT rate */
 260                 if (pstats->is_ht && pstats->rate >= DESC_RATEMCS8 &&
 261                     pstats->rate <= DESC_RATEMCS15)
 262                         max_spatial_stream = 2;
 263                 else
 264                         max_spatial_stream = 1;
 265
 266                 for (i = 0; i < max_spatial_stream; i++) {
 267                         evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 268
 269                         if (packet_match_bssid) {
 270                                 /* Fill value in RFD, Get the first
 271                                  * spatial stream only
 272                                  */
 273                                 if (i == 0)
 274                                         pstats->signalquality =
 275                                             (u8) (evm & 0xff);
 276                                 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
 277                         }
 278                 }
 279         }
 280
 281         /* UI BSS List signal strength(in percentage),
 282          * make it good looking, from 0~100.
 283          */
 284         if (is_cck_rate)
 285                 pstats->signalstrength =
 286                     (u8) (_rtl92ce_signal_scale_mapping(hw, pwdb_all));
 287         else if (rf_rx_num != 0)
 288                 pstats->signalstrength =
 289                     (u8) (_rtl92ce_signal_scale_mapping
 290                           (hw, total_rssi /= rf_rx_num));
 291 }
 292
 293 static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 294                                                struct sk_buff *skb,
 295                                                struct rtl_stats *pstats,
 296                                                struct rx_desc_92c *pdesc,
 297                                                struct rx_fwinfo_92c *p_drvinfo)
 298 {
 299         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 300         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 301
 302         struct ieee80211_hdr *hdr;
 303         u8 *tmp_buf;
 304         u8 *praddr;
 305         __le16 fc;
 306         u16 type, c_fc;
 307         bool packet_matchbssid, packet_toself, packet_beacon = false;
 308
 309         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
 310
 311         hdr = (struct ieee80211_hdr *)tmp_buf;
 312         fc = hdr->frame_control;
 313         c_fc = le16_to_cpu(fc);
 314         type = WLAN_FC_GET_TYPE(fc);
 315         praddr = hdr->addr1;
 316
 317         packet_matchbssid =
 318             ((IEEE80211_FTYPE_CTL != type) &&
 319              ether_addr_equal(mac->bssid,
 320                               (c_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
 321                               (c_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
 322                               hdr->addr3) &&
 323              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
 324
 325         packet_toself = packet_matchbssid &&
 326              ether_addr_equal(praddr, rtlefuse->dev_addr);
 327
 328         if (ieee80211_is_beacon(fc))
 329                 packet_beacon = true;
 330
 331         _rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 332                                    packet_matchbssid, packet_toself,
 333                                    packet_beacon);
 334
 335         rtl_process_phyinfo(hw, tmp_buf, pstats);
 336 }
 337
 338 bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
 339                            struct rtl_stats *stats,
 340                            struct ieee80211_rx_status *rx_status,
 341                            u8 *p_desc, struct sk_buff *skb)
 342 {
 343         struct rx_fwinfo_92c *p_drvinfo;
 344         struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
 345         struct ieee80211_hdr *hdr;
 346         u32 phystatus = GET_RX_DESC_PHYST(pdesc);
 347         stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
 348         stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
 349             RX_DRV_INFO_SIZE_UNIT;
 350         stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
 351         stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
 352         stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
 353         stats->hwerror = (stats->crc | stats->icv);
 354         stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 355         stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
 356         stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
 357         stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
 358         stats->isfirst_ampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
 359                                    && (GET_RX_DESC_FAGGR(pdesc) == 1));
 360         stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 361         stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
 362         stats->is_ht = (bool)GET_RX_DESC_RXHT(pdesc);
 363
 364         stats->is_cck = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
 365
 366         rx_status->freq = hw->conf.chandef.chan->center_freq;
 367         rx_status->band = hw->conf.chandef.chan->band;
 368
 369         hdr = (struct ieee80211_hdr *)(skb->data + stats->rx_drvinfo_size
 370                         + stats->rx_bufshift);
 371
 372         if (stats->crc)
 373                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 374
 375         if (stats->rx_is40Mhzpacket)
 376                 rx_status->flag |= RX_FLAG_40MHZ;
 377
 378         if (stats->is_ht)
 379                 rx_status->flag |= RX_FLAG_HT;
 380
 381         rx_status->flag |= RX_FLAG_MACTIME_START;
 382
 383         /* hw will set stats->decrypted true, if it finds the
 384          * frame is open data frame or mgmt frame.
 385          * So hw will not decryption robust managment frame
 386          * for IEEE80211w but still set status->decrypted
 387          * true, so here we should set it back to undecrypted
 388          * for IEEE80211w frame, and mac80211 sw will help
 389          * to decrypt it
 390          */
 391         if (stats->decrypted) {
 392                 if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
 393                     (ieee80211_has_protected(hdr->frame_control)))
 394                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 395                 else
 396                         rx_status->flag |= RX_FLAG_DECRYPTED;
 397         }
 398         /* rate_idx: index of data rate into band's
 399          * supported rates or MCS index if HT rates
 400          * are use (RX_FLAG_HT)
 401          * Notice: this is diff with windows define
 402          */
 403         rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
 404                                                    false, stats->rate);
 405
 406         rx_status->mactime = stats->timestamp_low;
 407         if (phystatus) {
 408                 p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
 409                                                      stats->rx_bufshift);
 410
 411                 _rtl92ce_translate_rx_signal_stuff(hw,
 412                                                    skb, stats, pdesc,
 413                                                    p_drvinfo);
 414         }
 415
 416         /*rx_status->qual = stats->signal; */
 417         rx_status->signal = stats->recvsignalpower + 10;
 418
 419         return true;
 420 }
 421
 422 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
 423                           struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 424                           u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
 425                           struct ieee80211_sta *sta,
 426                           struct sk_buff *skb,
 427                           u8 hw_queue, struct rtl_tcb_desc *tcb_desc)
 428 {
 429         struct rtl_priv *rtlpriv = rtl_priv(hw);
 430         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 431         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 432         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 433         bool defaultadapter = true;
 434         u8 *pdesc = pdesc_tx;
 435         u16 seq_number;
 436         __le16 fc = hdr->frame_control;
 437         u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue(skb, hw_queue);
 438         bool firstseg = ((hdr->seq_ctrl &
 439                           cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 440
 441         bool lastseg = ((hdr->frame_control &
 442                          cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 443
 444         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 445                                             skb->data, skb->len,
 446                                             PCI_DMA_TODEVICE);
 447
 448         u8 bw_40 = 0;
 449
 450         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 451                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 452                          "DMA mapping error");
 453                 return;
 454         }
 455         rcu_read_lock();
 456         sta = get_sta(hw, mac->vif, mac->bssid);
 457         if (mac->opmode == NL80211_IFTYPE_STATION) {
 458                 bw_40 = mac->bw_40;
 459         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 460                    mac->opmode == NL80211_IFTYPE_ADHOC ||
 461                    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 462                 if (sta)
 463                         bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
 464         }
 465
 466         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 467
 468         rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
 469
 470         CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92c));
 471
 472         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 473                 firstseg = true;
 474                 lastseg = true;
 475         }
 476         if (firstseg) {
 477                 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 478
 479                 SET_TX_DESC_TX_RATE(pdesc, tcb_desc->hw_rate);
 480
 481                 if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
 482                         SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
 483
 484                 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 485                         SET_TX_DESC_AGG_BREAK(pdesc, 1);
 486                         SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
 487                 }
 488                 SET_TX_DESC_SEQ(pdesc, seq_number);
 489
 490                 SET_TX_DESC_RTS_ENABLE(pdesc, ((tcb_desc->rts_enable &&
 491                                                 !tcb_desc->
 492                                                 cts_enable) ? 1 : 0));
 493                 SET_TX_DESC_HW_RTS_ENABLE(pdesc,
 494                                           ((tcb_desc->rts_enable
 495                                             || tcb_desc->cts_enable) ? 1 : 0));
 496                 SET_TX_DESC_CTS2SELF(pdesc, ((tcb_desc->cts_enable) ? 1 : 0));
 497                 SET_TX_DESC_RTS_STBC(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
 498
 499                 SET_TX_DESC_RTS_RATE(pdesc, tcb_desc->rts_rate);
 500                 SET_TX_DESC_RTS_BW(pdesc, 0);
 501                 SET_TX_DESC_RTS_SC(pdesc, tcb_desc->rts_sc);
 502                 SET_TX_DESC_RTS_SHORT(pdesc,
 503                                       ((tcb_desc->rts_rate <= DESC_RATE54M) ?
 504                                        (tcb_desc->rts_use_shortpreamble ? 1 : 0)
 505                                        : (tcb_desc->rts_use_shortgi ? 1 : 0)));
 506
 507                 if (bw_40) {
 508                         if (tcb_desc->packet_bw) {
 509                                 SET_TX_DESC_DATA_BW(pdesc, 1);
 510                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
 511                         } else {
 512                                 SET_TX_DESC_DATA_BW(pdesc, 0);
 513                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 514                                                  mac->cur_40_prime_sc);
 515                         }
 516                 } else {
 517                         SET_TX_DESC_DATA_BW(pdesc, 0);
 518                         SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 519                 }
 520
 521                 SET_TX_DESC_LINIP(pdesc, 0);
 522                 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
 523
 524                 if (sta) {
 525                         u8 ampdu_density = sta->ht_cap.ampdu_density;
 526                         SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
 527                 }
 528
 529                 if (info->control.hw_key) {
 530                         struct ieee80211_key_conf *keyconf =
 531                             info->control.hw_key;
 532
 533                         switch (keyconf->cipher) {
 534                         case WLAN_CIPHER_SUITE_WEP40:
 535                         case WLAN_CIPHER_SUITE_WEP104:
 536                         case WLAN_CIPHER_SUITE_TKIP:
 537                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 538                                 break;
 539                         case WLAN_CIPHER_SUITE_CCMP:
 540                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 541                                 break;
 542                         default:
 543                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 544                                 break;
 545
 546                         }
 547                 }
 548
 549                 SET_TX_DESC_PKT_ID(pdesc, 0);
 550                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 551
 552                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 553                 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
 554                 SET_TX_DESC_DISABLE_FB(pdesc, 0);
 555                 SET_TX_DESC_USE_RATE(pdesc, tcb_desc->use_driver_rate ? 1 : 0);
 556
 557                 if (ieee80211_is_data_qos(fc)) {
 558                         if (mac->rdg_en) {
 559                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 560                                          "Enable RDG function\n");
 561                                 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
 562                                 SET_TX_DESC_HTC(pdesc, 1);
 563                         }
 564                 }
 565         }
 566         rcu_read_unlock();
 567
 568         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 569         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 570
 571         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
 572
 573         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 574
 575         if (rtlpriv->dm.useramask) {
 576                 SET_TX_DESC_RATE_ID(pdesc, tcb_desc->ratr_index);
 577                 SET_TX_DESC_MACID(pdesc, tcb_desc->mac_id);
 578         } else {
 579                 SET_TX_DESC_RATE_ID(pdesc, 0xC + tcb_desc->ratr_index);
 580                 SET_TX_DESC_MACID(pdesc, tcb_desc->ratr_index);
 581         }
 582
 583         if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
 584                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 585                 SET_TX_DESC_PKT_ID(pdesc, 8);
 586
 587                 if (!defaultadapter)
 588                         SET_TX_DESC_QOS(pdesc, 1);
 589         }
 590
 591         SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
 592
 593         if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 594             is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
 595                 SET_TX_DESC_BMC(pdesc, 1);
 596         }
 597
 598         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 599 }
 600
 601 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
 602                              u8 *pdesc, bool firstseg,
 603                              bool lastseg, struct sk_buff *skb)
 604 {
 605         struct rtl_priv *rtlpriv = rtl_priv(hw);
 606         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 607         u8 fw_queue = QSLT_BEACON;
 608
 609         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 610                                             skb->data, skb->len,
 611                                             PCI_DMA_TODEVICE);
 612
 613         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 614         __le16 fc = hdr->frame_control;
 615
 616         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 617                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 618                          "DMA mapping error");
 619                 return;
 620         }
 621         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
 622
 623         if (firstseg)
 624                 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 625
 626         SET_TX_DESC_TX_RATE(pdesc, DESC_RATE1M);
 627
 628         SET_TX_DESC_SEQ(pdesc, 0);
 629
 630         SET_TX_DESC_LINIP(pdesc, 0);
 631
 632         SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 633
 634         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 635         SET_TX_DESC_LAST_SEG(pdesc, 1);
 636
 637         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) (skb->len));
 638
 639         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 640
 641         SET_TX_DESC_RATE_ID(pdesc, 7);
 642         SET_TX_DESC_MACID(pdesc, 0);
 643
 644         SET_TX_DESC_OWN(pdesc, 1);
 645
 646         SET_TX_DESC_PKT_SIZE(pdesc, (u16) (skb->len));
 647
 648         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 649         SET_TX_DESC_LAST_SEG(pdesc, 1);
 650
 651         SET_TX_DESC_OFFSET(pdesc, 0x20);
 652
 653         SET_TX_DESC_USE_RATE(pdesc, 1);
 654
 655         if (!ieee80211_is_data_qos(fc)) {
 656                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 657                 SET_TX_DESC_PKT_ID(pdesc, 8);
 658         }
 659
 660         RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 661                       "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
 662 }
 663
 664 void rtl92ce_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
 665                       u8 desc_name, u8 *val)
 666 {
 667         if (istx) {
 668                 switch (desc_name) {
 669                 case HW_DESC_OWN:
 670                         wmb();
 671                         SET_TX_DESC_OWN(pdesc, 1);
 672                         break;
 673                 case HW_DESC_TX_NEXTDESC_ADDR:
 674                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
 675                         break;
 676                 default:
 677                         RT_ASSERT(false, "ERR txdesc :%d not process\n",
 678                                   desc_name);
 679                         break;
 680                 }
 681         } else {
 682                 switch (desc_name) {
 683                 case HW_DESC_RXOWN:
 684                         wmb();
 685                         SET_RX_DESC_OWN(pdesc, 1);
 686                         break;
 687                 case HW_DESC_RXBUFF_ADDR:
 688                         SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *) val);
 689                         break;
 690                 case HW_DESC_RXPKT_LEN:
 691                         SET_RX_DESC_PKT_LEN(pdesc, *(u32 *) val);
 692                         break;
 693                 case HW_DESC_RXERO:
 694                         SET_RX_DESC_EOR(pdesc, 1);
 695                         break;
 696                 default:
 697                         RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 698                                   desc_name);
 699                         break;
 700                 }
 701         }
 702 }
 703
 704 u32 rtl92ce_get_desc(u8 *p_desc, bool istx, u8 desc_name)
 705 {
 706         u32 ret = 0;
 707
 708         if (istx) {
 709                 switch (desc_name) {
 710                 case HW_DESC_OWN:
 711                         ret = GET_TX_DESC_OWN(p_desc);
 712                         break;
 713                 case HW_DESC_TXBUFF_ADDR:
 714                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(p_desc);
 715                         break;
 716                 default:
 717                         RT_ASSERT(false, "ERR txdesc :%d not process\n",
 718                                   desc_name);
 719                         break;
 720                 }
 721         } else {
 722                 switch (desc_name) {
 723                 case HW_DESC_OWN:
 724                         ret = GET_RX_DESC_OWN(p_desc);
 725                         break;
 726                 case HW_DESC_RXPKT_LEN:
 727                         ret = GET_RX_DESC_PKT_LEN(p_desc);
 728                         break;
 729                 case HW_DESC_RXBUFF_ADDR:
 730                         ret = GET_RX_DESC_BUFF_ADDR(p_desc);
 731                         break;
 732                 default:
 733                         RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 734                                   desc_name);
 735                         break;
 736                 }
 737         }
 738         return ret;
 739 }
 740
 741 bool rtl92ce_is_tx_desc_closed(struct ieee80211_hw *hw,
 742                                u8 hw_queue, u16 index)
 743 {
 744         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 745         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 746         u8 *entry = (u8 *)(&ring->desc[ring->idx]);
 747         u8 own = (u8)rtl92ce_get_desc(entry, true, HW_DESC_OWN);
 748
 749         /*beacon packet will only use the first
 750          *descriptor defautly,and the own may not
 751          *be cleared by the hardware
 752          */
 753         if (own)
 754                 return false;
 755         return true;
 756 }
 757
 758 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 759 {
 760         struct rtl_priv *rtlpriv = rtl_priv(hw);
 761         if (hw_queue == BEACON_QUEUE) {
 762                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
 763         } else {
 764                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
 765                                BIT(0) << (hw_queue));
 766         }
 767 }
 768