drivers/net/wireless/realtek/rtlwifi/rtl8192de/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 "reg.h"
  30 #include "def.h"
  31 #include "phy.h"
  32 #include "trx.h"
  33 #include "led.h"
  34
  35 static u8 _rtl92de_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
  36 {
  37         __le16 fc = rtl_get_fc(skb);
  38
  39         if (unlikely(ieee80211_is_beacon(fc)))
  40                 return QSLT_BEACON;
  41         if (ieee80211_is_mgmt(fc))
  42                 return QSLT_MGNT;
  43
  44         return skb->priority;
  45 }
  46
  47 static u8 _rtl92d_query_rxpwrpercentage(s8 antpower)
  48 {
  49         if ((antpower <= -100) || (antpower >= 20))
  50                 return 0;
  51         else if (antpower >= 0)
  52                 return 100;
  53         else
  54                 return 100 + antpower;
  55 }
  56
  57 static u8 _rtl92d_evm_db_to_percentage(s8 value)
  58 {
  59         s8 ret_val = value;
  60
  61         if (ret_val >= 0)
  62                 ret_val = 0;
  63         if (ret_val <= -33)
  64                 ret_val = -33;
  65         ret_val = 0 - ret_val;
  66         ret_val *= 3;
  67         if (ret_val == 99)
  68                 ret_val = 100;
  69         return ret_val;
  70 }
  71
  72 static long _rtl92de_translate_todbm(struct ieee80211_hw *hw,
  73                                      u8 signal_strength_index)
  74 {
  75         long signal_power;
  76
  77         signal_power = (long)((signal_strength_index + 1) >> 1);
  78         signal_power -= 95;
  79         return signal_power;
  80 }
  81
  82 static long _rtl92de_signal_scale_mapping(struct ieee80211_hw *hw, long currsig)
  83 {
  84         long retsig;
  85
  86         if (currsig >= 61 && currsig <= 100)
  87                 retsig = 90 + ((currsig - 60) / 4);
  88         else if (currsig >= 41 && currsig <= 60)
  89                 retsig = 78 + ((currsig - 40) / 2);
  90         else if (currsig >= 31 && currsig <= 40)
  91                 retsig = 66 + (currsig - 30);
  92         else if (currsig >= 21 && currsig <= 30)
  93                 retsig = 54 + (currsig - 20);
  94         else if (currsig >= 5 && currsig <= 20)
  95                 retsig = 42 + (((currsig - 5) * 2) / 3);
  96         else if (currsig == 4)
  97                 retsig = 36;
  98         else if (currsig == 3)
  99                 retsig = 27;
 100         else if (currsig == 2)
 101                 retsig = 18;
 102         else if (currsig == 1)
 103                 retsig = 9;
 104         else
 105                 retsig = currsig;
 106         return retsig;
 107 }
 108
 109 static void _rtl92de_query_rxphystatus(struct ieee80211_hw *hw,
 110                                        struct rtl_stats *pstats,
 111                                        struct rx_desc_92d *pdesc,
 112                                        struct rx_fwinfo_92d *p_drvinfo,
 113                                        bool packet_match_bssid,
 114                                        bool packet_toself,
 115                                        bool packet_beacon)
 116 {
 117         struct rtl_priv *rtlpriv = rtl_priv(hw);
 118         struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
 119         struct phy_sts_cck_8192d *cck_buf;
 120         s8 rx_pwr_all, rx_pwr[4];
 121         u8 rf_rx_num = 0, evm, pwdb_all;
 122         u8 i, max_spatial_stream;
 123         u32 rssi, total_rssi = 0;
 124         bool is_cck_rate;
 125
 126         is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
 127         pstats->packet_matchbssid = packet_match_bssid;
 128         pstats->packet_toself = packet_toself;
 129         pstats->packet_beacon = packet_beacon;
 130         pstats->is_cck = is_cck_rate;
 131         pstats->rx_mimo_sig_qual[0] = -1;
 132         pstats->rx_mimo_sig_qual[1] = -1;
 133
 134         if (is_cck_rate) {
 135                 u8 report, cck_highpwr;
 136                 cck_buf = (struct phy_sts_cck_8192d *)p_drvinfo;
 137                 if (ppsc->rfpwr_state == ERFON)
 138                         cck_highpwr = (u8) rtl_get_bbreg(hw,
 139                                                  RFPGA0_XA_HSSIPARAMETER2,
 140                                                  BIT(9));
 141                 else
 142                         cck_highpwr = false;
 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                 pwdb_all = _rtl92d_query_rxpwrpercentage(rx_pwr_all);
 181                 /* CCK gain is smaller than OFDM/MCS gain,  */
 182                 /* so we add gain diff by experiences, the val is 6 */
 183                 pwdb_all += 6;
 184                 if (pwdb_all > 100)
 185                         pwdb_all = 100;
 186                 /* modify the offset to make the same gain index with OFDM. */
 187                 if (pwdb_all > 34 && pwdb_all <= 42)
 188                         pwdb_all -= 2;
 189                 else if (pwdb_all > 26 && pwdb_all <= 34)
 190                         pwdb_all -= 6;
 191                 else if (pwdb_all > 14 && pwdb_all <= 26)
 192                         pwdb_all -= 8;
 193                 else if (pwdb_all > 4 && pwdb_all <= 14)
 194                         pwdb_all -= 4;
 195                 pstats->rx_pwdb_all = pwdb_all;
 196                 pstats->recvsignalpower = rx_pwr_all;
 197                 if (packet_match_bssid) {
 198                         u8 sq;
 199                         if (pstats->rx_pwdb_all > 40) {
 200                                 sq = 100;
 201                         } else {
 202                                 sq = cck_buf->sq_rpt;
 203                                 if (sq > 64)
 204                                         sq = 0;
 205                                 else if (sq < 20)
 206                                         sq = 100;
 207                                 else
 208                                         sq = ((64 - sq) * 100) / 44;
 209                         }
 210                         pstats->signalquality = sq;
 211                         pstats->rx_mimo_sig_qual[0] = sq;
 212                         pstats->rx_mimo_sig_qual[1] = -1;
 213                 }
 214         } else {
 215                 rtlpriv->dm.rfpath_rxenable[0] = true;
 216                 rtlpriv->dm.rfpath_rxenable[1] = true;
 217                 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
 218                         if (rtlpriv->dm.rfpath_rxenable[i])
 219                                 rf_rx_num++;
 220                         rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2)
 221                                     - 110;
 222                         rssi = _rtl92d_query_rxpwrpercentage(rx_pwr[i]);
 223                         total_rssi += rssi;
 224                         rtlpriv->stats.rx_snr_db[i] =
 225                                          (long)(p_drvinfo->rxsnr[i] / 2);
 226                         if (packet_match_bssid)
 227                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 228                 }
 229                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 106;
 230                 pwdb_all = _rtl92d_query_rxpwrpercentage(rx_pwr_all);
 231                 pstats->rx_pwdb_all = pwdb_all;
 232                 pstats->rxpower = rx_pwr_all;
 233                 pstats->recvsignalpower = rx_pwr_all;
 234                 if (pdesc->rxht && pdesc->rxmcs >= DESC_RATEMCS8 &&
 235                     pdesc->rxmcs <= DESC_RATEMCS15)
 236                         max_spatial_stream = 2;
 237                 else
 238                         max_spatial_stream = 1;
 239                 for (i = 0; i < max_spatial_stream; i++) {
 240                         evm = _rtl92d_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 241                         if (packet_match_bssid) {
 242                                 if (i == 0)
 243                                         pstats->signalquality =
 244                                                  (u8)(evm & 0xff);
 245                                 pstats->rx_mimo_sig_qual[i] =
 246                                                  (u8)(evm & 0xff);
 247                         }
 248                 }
 249         }
 250         if (is_cck_rate)
 251                 pstats->signalstrength = (u8)(_rtl92de_signal_scale_mapping(hw,
 252                                 pwdb_all));
 253         else if (rf_rx_num != 0)
 254                 pstats->signalstrength = (u8)(_rtl92de_signal_scale_mapping(hw,
 255                                 total_rssi /= rf_rx_num));
 256 }
 257
 258 static void rtl92d_loop_over_paths(struct ieee80211_hw *hw,
 259                                    struct rtl_stats *pstats)
 260 {
 261         struct rtl_priv *rtlpriv = rtl_priv(hw);
 262         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 263         u8 rfpath;
 264
 265         for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
 266              rfpath++) {
 267                 if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
 268                         rtlpriv->stats.rx_rssi_percentage[rfpath] =
 269                             pstats->rx_mimo_signalstrength[rfpath];
 270
 271                 }
 272                 if (pstats->rx_mimo_signalstrength[rfpath] >
 273                     rtlpriv->stats.rx_rssi_percentage[rfpath]) {
 274                         rtlpriv->stats.rx_rssi_percentage[rfpath] =
 275                             ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
 276                               (RX_SMOOTH_FACTOR - 1)) +
 277                              (pstats->rx_mimo_signalstrength[rfpath])) /
 278                             (RX_SMOOTH_FACTOR);
 279                         rtlpriv->stats.rx_rssi_percentage[rfpath] =
 280                             rtlpriv->stats.rx_rssi_percentage[rfpath] + 1;
 281                 } else {
 282                         rtlpriv->stats.rx_rssi_percentage[rfpath] =
 283                             ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
 284                               (RX_SMOOTH_FACTOR - 1)) +
 285                              (pstats->rx_mimo_signalstrength[rfpath])) /
 286                             (RX_SMOOTH_FACTOR);
 287                 }
 288         }
 289 }
 290
 291 static void _rtl92de_process_ui_rssi(struct ieee80211_hw *hw,
 292                                      struct rtl_stats *pstats)
 293 {
 294         struct rtl_priv *rtlpriv = rtl_priv(hw);
 295         u32 last_rssi, tmpval;
 296
 297         if (pstats->packet_toself || pstats->packet_beacon) {
 298                 rtlpriv->stats.rssi_calculate_cnt++;
 299                 if (rtlpriv->stats.ui_rssi.total_num++ >=
 300                     PHY_RSSI_SLID_WIN_MAX) {
 301                         rtlpriv->stats.ui_rssi.total_num =
 302                                                  PHY_RSSI_SLID_WIN_MAX;
 303                         last_rssi = rtlpriv->stats.ui_rssi.elements[
 304                                 rtlpriv->stats.ui_rssi.index];
 305                         rtlpriv->stats.ui_rssi.total_val -= last_rssi;
 306                 }
 307                 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
 308                 rtlpriv->stats.ui_rssi.elements
 309                         [rtlpriv->stats.ui_rssi.index++] =
 310                         pstats->signalstrength;
 311                 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
 312                         rtlpriv->stats.ui_rssi.index = 0;
 313                 tmpval = rtlpriv->stats.ui_rssi.total_val /
 314                         rtlpriv->stats.ui_rssi.total_num;
 315                 rtlpriv->stats.signal_strength = _rtl92de_translate_todbm(hw,
 316                         (u8) tmpval);
 317                 pstats->rssi = rtlpriv->stats.signal_strength;
 318         }
 319         if (!pstats->is_cck && pstats->packet_toself)
 320                 rtl92d_loop_over_paths(hw, pstats);
 321 }
 322
 323 static void _rtl92de_update_rxsignalstatistics(struct ieee80211_hw *hw,
 324                                                struct rtl_stats *pstats)
 325 {
 326         struct rtl_priv *rtlpriv = rtl_priv(hw);
 327         int weighting = 0;
 328
 329         if (rtlpriv->stats.recv_signal_power == 0)
 330                 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
 331         if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
 332                 weighting = 5;
 333         else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
 334                 weighting = (-5);
 335         rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power *
 336                 5 + pstats->recvsignalpower + weighting) / 6;
 337 }
 338
 339 static void _rtl92de_process_pwdb(struct ieee80211_hw *hw,
 340                                   struct rtl_stats *pstats)
 341 {
 342         struct rtl_priv *rtlpriv = rtl_priv(hw);
 343         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 344         long undec_sm_pwdb;
 345
 346         if (mac->opmode == NL80211_IFTYPE_ADHOC ||
 347                 mac->opmode == NL80211_IFTYPE_AP)
 348                 return;
 349         else
 350                 undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
 351
 352         if (pstats->packet_toself || pstats->packet_beacon) {
 353                 if (undec_sm_pwdb < 0)
 354                         undec_sm_pwdb = pstats->rx_pwdb_all;
 355                 if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
 356                         undec_sm_pwdb = (((undec_sm_pwdb) *
 357                               (RX_SMOOTH_FACTOR - 1)) +
 358                               (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
 359                         undec_sm_pwdb = undec_sm_pwdb + 1;
 360                 } else {
 361                         undec_sm_pwdb = (((undec_sm_pwdb) *
 362                               (RX_SMOOTH_FACTOR - 1)) +
 363                               (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
 364                 }
 365                 rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
 366                 _rtl92de_update_rxsignalstatistics(hw, pstats);
 367         }
 368 }
 369
 370 static void rtl92d_loop_over_streams(struct ieee80211_hw *hw,
 371                                      struct rtl_stats *pstats)
 372 {
 373         struct rtl_priv *rtlpriv = rtl_priv(hw);
 374         int stream;
 375
 376         for (stream = 0; stream < 2; stream++) {
 377                 if (pstats->rx_mimo_sig_qual[stream] != -1) {
 378                         if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
 379                                 rtlpriv->stats.rx_evm_percentage[stream] =
 380                                     pstats->rx_mimo_sig_qual[stream];
 381                         }
 382                         rtlpriv->stats.rx_evm_percentage[stream] =
 383                             ((rtlpriv->stats.rx_evm_percentage[stream]
 384                               * (RX_SMOOTH_FACTOR - 1)) +
 385                              (pstats->rx_mimo_sig_qual[stream] * 1)) /
 386                             (RX_SMOOTH_FACTOR);
 387                 }
 388         }
 389 }
 390
 391 static void _rtl92de_process_ui_link_quality(struct ieee80211_hw *hw,
 392                                              struct rtl_stats *pstats)
 393 {
 394         struct rtl_priv *rtlpriv = rtl_priv(hw);
 395         u32 last_evm, tmpval;
 396
 397         if (pstats->signalquality == 0)
 398                 return;
 399         if (pstats->packet_toself || pstats->packet_beacon) {
 400                 if (rtlpriv->stats.ui_link_quality.total_num++ >=
 401                     PHY_LINKQUALITY_SLID_WIN_MAX) {
 402                         rtlpriv->stats.ui_link_quality.total_num =
 403                             PHY_LINKQUALITY_SLID_WIN_MAX;
 404                         last_evm = rtlpriv->stats.ui_link_quality.elements[
 405                                 rtlpriv->stats.ui_link_quality.index];
 406                         rtlpriv->stats.ui_link_quality.total_val -= last_evm;
 407                 }
 408                 rtlpriv->stats.ui_link_quality.total_val +=
 409                                                  pstats->signalquality;
 410                 rtlpriv->stats.ui_link_quality.elements[
 411                         rtlpriv->stats.ui_link_quality.index++] =
 412                                                  pstats->signalquality;
 413                 if (rtlpriv->stats.ui_link_quality.index >=
 414                     PHY_LINKQUALITY_SLID_WIN_MAX)
 415                         rtlpriv->stats.ui_link_quality.index = 0;
 416                 tmpval = rtlpriv->stats.ui_link_quality.total_val /
 417                     rtlpriv->stats.ui_link_quality.total_num;
 418                 rtlpriv->stats.signal_quality = tmpval;
 419                 rtlpriv->stats.last_sigstrength_inpercent = tmpval;
 420                 rtl92d_loop_over_streams(hw, pstats);
 421         }
 422 }
 423
 424 static void _rtl92de_process_phyinfo(struct ieee80211_hw *hw,
 425                                      u8 *buffer,
 426                                      struct rtl_stats *pcurrent_stats)
 427 {
 428
 429         if (!pcurrent_stats->packet_matchbssid &&
 430             !pcurrent_stats->packet_beacon)
 431                 return;
 432
 433         _rtl92de_process_ui_rssi(hw, pcurrent_stats);
 434         _rtl92de_process_pwdb(hw, pcurrent_stats);
 435         _rtl92de_process_ui_link_quality(hw, pcurrent_stats);
 436 }
 437
 438 static void _rtl92de_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 439                                                struct sk_buff *skb,
 440                                                struct rtl_stats *pstats,
 441                                                struct rx_desc_92d *pdesc,
 442                                                struct rx_fwinfo_92d *p_drvinfo)
 443 {
 444         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 445         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 446         struct ieee80211_hdr *hdr;
 447         u8 *tmp_buf;
 448         u8 *praddr;
 449         u16 type, cfc;
 450         __le16 fc;
 451         bool packet_matchbssid, packet_toself, packet_beacon = false;
 452
 453         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
 454         hdr = (struct ieee80211_hdr *)tmp_buf;
 455         fc = hdr->frame_control;
 456         cfc = le16_to_cpu(fc);
 457         type = WLAN_FC_GET_TYPE(fc);
 458         praddr = hdr->addr1;
 459         packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
 460              ether_addr_equal(mac->bssid,
 461                               (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
 462                               (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
 463                               hdr->addr3) &&
 464              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
 465         packet_toself = packet_matchbssid &&
 466                         ether_addr_equal(praddr, rtlefuse->dev_addr);
 467         if (ieee80211_is_beacon(fc))
 468                 packet_beacon = true;
 469         _rtl92de_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 470                                    packet_matchbssid, packet_toself,
 471                                    packet_beacon);
 472         _rtl92de_process_phyinfo(hw, tmp_buf, pstats);
 473 }
 474
 475 bool rtl92de_rx_query_desc(struct ieee80211_hw *hw,     struct rtl_stats *stats,
 476                 struct ieee80211_rx_status *rx_status,
 477                 u8 *p_desc, struct sk_buff *skb)
 478 {
 479         struct rx_fwinfo_92d *p_drvinfo;
 480         struct rx_desc_92d *pdesc = (struct rx_desc_92d *)p_desc;
 481         u32 phystatus = GET_RX_DESC_PHYST(pdesc);
 482
 483         stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
 484         stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
 485                                  RX_DRV_INFO_SIZE_UNIT;
 486         stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
 487         stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
 488         stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
 489         stats->hwerror = (stats->crc | stats->icv);
 490         stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 491         stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
 492         stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
 493         stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
 494         stats->isfirst_ampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
 495                                          && (GET_RX_DESC_FAGGR(pdesc) == 1));
 496         stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 497         stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
 498         stats->is_ht = (bool)GET_RX_DESC_RXHT(pdesc);
 499         rx_status->freq = hw->conf.chandef.chan->center_freq;
 500         rx_status->band = hw->conf.chandef.chan->band;
 501         if (GET_RX_DESC_CRC32(pdesc))
 502                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 503         if (!GET_RX_DESC_SWDEC(pdesc))
 504                 rx_status->flag |= RX_FLAG_DECRYPTED;
 505         if (GET_RX_DESC_BW(pdesc))
 506                 rx_status->bw = RATE_INFO_BW_40;
 507         if (GET_RX_DESC_RXHT(pdesc))
 508                 rx_status->encoding = RX_ENC_HT;
 509         rx_status->flag |= RX_FLAG_MACTIME_START;
 510         if (stats->decrypted)
 511                 rx_status->flag |= RX_FLAG_DECRYPTED;
 512         rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
 513                                                    false, stats->rate);
 514         rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
 515         if (phystatus) {
 516                 p_drvinfo = (struct rx_fwinfo_92d *)(skb->data +
 517                                                      stats->rx_bufshift);
 518                 _rtl92de_translate_rx_signal_stuff(hw,
 519                                                    skb, stats, pdesc,
 520                                                    p_drvinfo);
 521         }
 522         /*rx_status->qual = stats->signal; */
 523         rx_status->signal = stats->recvsignalpower + 10;
 524         return true;
 525 }
 526
 527 static void _rtl92de_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
 528                                       u8 *virtualaddress)
 529 {
 530         memset(virtualaddress, 0, 8);
 531
 532         SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
 533         SET_EARLYMODE_LEN0(virtualaddress, ptcb_desc->empkt_len[0]);
 534         SET_EARLYMODE_LEN1(virtualaddress, ptcb_desc->empkt_len[1]);
 535         SET_EARLYMODE_LEN2_1(virtualaddress, ptcb_desc->empkt_len[2] & 0xF);
 536         SET_EARLYMODE_LEN2_2(virtualaddress, ptcb_desc->empkt_len[2] >> 4);
 537         SET_EARLYMODE_LEN3(virtualaddress, ptcb_desc->empkt_len[3]);
 538         SET_EARLYMODE_LEN4(virtualaddress, ptcb_desc->empkt_len[4]);
 539 }
 540
 541 void rtl92de_tx_fill_desc(struct ieee80211_hw *hw,
 542                           struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 543                           u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
 544                           struct ieee80211_sta *sta,
 545                           struct sk_buff *skb,
 546                           u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 547 {
 548         struct rtl_priv *rtlpriv = rtl_priv(hw);
 549         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 550         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 551         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 552         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 553         u8 *pdesc = pdesc_tx;
 554         u16 seq_number;
 555         __le16 fc = hdr->frame_control;
 556         unsigned int buf_len = 0;
 557         unsigned int skb_len = skb->len;
 558         u8 fw_qsel = _rtl92de_map_hwqueue_to_fwqueue(skb, hw_queue);
 559         bool firstseg = ((hdr->seq_ctrl &
 560                         cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 561         bool lastseg = ((hdr->frame_control &
 562                         cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 563         dma_addr_t mapping;
 564         u8 bw_40 = 0;
 565
 566         if (mac->opmode == NL80211_IFTYPE_STATION) {
 567                 bw_40 = mac->bw_40;
 568         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 569                 mac->opmode == NL80211_IFTYPE_ADHOC) {
 570                 if (sta)
 571                         bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
 572         }
 573         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 574         rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 575         /* reserve 8 byte for AMPDU early mode */
 576         if (rtlhal->earlymode_enable) {
 577                 skb_push(skb, EM_HDR_LEN);
 578                 memset(skb->data, 0, EM_HDR_LEN);
 579         }
 580         buf_len = skb->len;
 581         mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 582                                  PCI_DMA_TODEVICE);
 583         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 584                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 585                          "DMA mapping error\n");
 586                 return;
 587         }
 588         CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92d));
 589         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 590                 firstseg = true;
 591                 lastseg = true;
 592         }
 593         if (firstseg) {
 594                 if (rtlhal->earlymode_enable) {
 595                         SET_TX_DESC_PKT_OFFSET(pdesc, 1);
 596                         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN +
 597                                            EM_HDR_LEN);
 598                         if (ptcb_desc->empkt_num) {
 599                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
 600                                          "Insert 8 byte.pTcb->EMPktNum:%d\n",
 601                                          ptcb_desc->empkt_num);
 602                                 _rtl92de_insert_emcontent(ptcb_desc,
 603                                                           (u8 *)(skb->data));
 604                         }
 605                 } else {
 606                         SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 607                 }
 608                 /* 5G have no CCK rate */
 609                 if (rtlhal->current_bandtype == BAND_ON_5G)
 610                         if (ptcb_desc->hw_rate < DESC_RATE6M)
 611                                 ptcb_desc->hw_rate = DESC_RATE6M;
 612                 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
 613                 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
 614                         SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
 615
 616                 if (rtlhal->macphymode == DUALMAC_DUALPHY &&
 617                         ptcb_desc->hw_rate == DESC_RATEMCS7)
 618                         SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
 619
 620                 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 621                         SET_TX_DESC_AGG_ENABLE(pdesc, 1);
 622                         SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
 623                 }
 624                 SET_TX_DESC_SEQ(pdesc, seq_number);
 625                 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
 626                                        !ptcb_desc->cts_enable) ? 1 : 0));
 627                 SET_TX_DESC_HW_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable
 628                                           || ptcb_desc->cts_enable) ? 1 : 0));
 629                 SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
 630                 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
 631                 /* 5G have no CCK rate */
 632                 if (rtlhal->current_bandtype == BAND_ON_5G)
 633                         if (ptcb_desc->rts_rate < DESC_RATE6M)
 634                                 ptcb_desc->rts_rate = DESC_RATE6M;
 635                 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
 636                 SET_TX_DESC_RTS_BW(pdesc, 0);
 637                 SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc);
 638                 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
 639                         DESC_RATE54M) ?
 640                         (ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
 641                         (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 642                 if (bw_40) {
 643                         if (ptcb_desc->packet_bw) {
 644                                 SET_TX_DESC_DATA_BW(pdesc, 1);
 645                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
 646                         } else {
 647                                 SET_TX_DESC_DATA_BW(pdesc, 0);
 648                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 649                                                         mac->cur_40_prime_sc);
 650                         }
 651                 } else {
 652                         SET_TX_DESC_DATA_BW(pdesc, 0);
 653                         SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 654                 }
 655                 SET_TX_DESC_LINIP(pdesc, 0);
 656                 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb_len);
 657                 if (sta) {
 658                         u8 ampdu_density = sta->ht_cap.ampdu_density;
 659                         SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
 660                 }
 661                 if (info->control.hw_key) {
 662                         struct ieee80211_key_conf *keyconf;
 663
 664                         keyconf = info->control.hw_key;
 665                         switch (keyconf->cipher) {
 666                         case WLAN_CIPHER_SUITE_WEP40:
 667                         case WLAN_CIPHER_SUITE_WEP104:
 668                         case WLAN_CIPHER_SUITE_TKIP:
 669                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 670                                 break;
 671                         case WLAN_CIPHER_SUITE_CCMP:
 672                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 673                                 break;
 674                         default:
 675                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 676                                 break;
 677
 678                         }
 679                 }
 680                 SET_TX_DESC_PKT_ID(pdesc, 0);
 681                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 682                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 683                 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
 684                 SET_TX_DESC_DISABLE_FB(pdesc, ptcb_desc->disable_ratefallback ?
 685                                        1 : 0);
 686                 SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
 687
 688                 /* Set TxRate and RTSRate in TxDesc  */
 689                 /* This prevent Tx initial rate of new-coming packets */
 690                 /* from being overwritten by retried  packet rate.*/
 691                 if (!ptcb_desc->use_driver_rate) {
 692                         SET_TX_DESC_RTS_RATE(pdesc, 0x08);
 693                         /* SET_TX_DESC_TX_RATE(pdesc, 0x0b); */
 694                 }
 695                 if (ieee80211_is_data_qos(fc)) {
 696                         if (mac->rdg_en) {
 697                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 698                                          "Enable RDG function\n");
 699                                 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
 700                                 SET_TX_DESC_HTC(pdesc, 1);
 701                         }
 702                 }
 703         }
 704
 705         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 706         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 707         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) buf_len);
 708         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 709         if (rtlpriv->dm.useramask) {
 710                 SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index);
 711                 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 712         } else {
 713                 SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index);
 714                 SET_TX_DESC_MACID(pdesc, ptcb_desc->ratr_index);
 715         }
 716         if (ieee80211_is_data_qos(fc))
 717                 SET_TX_DESC_QOS(pdesc, 1);
 718
 719         if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
 720                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 721                 SET_TX_DESC_PKT_ID(pdesc, 8);
 722         }
 723         SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
 724         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 725 }
 726
 727 void rtl92de_tx_fill_cmddesc(struct ieee80211_hw *hw,
 728                              u8 *pdesc, bool firstseg,
 729                              bool lastseg, struct sk_buff *skb)
 730 {
 731         struct rtl_priv *rtlpriv = rtl_priv(hw);
 732         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 733         struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
 734         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 735         u8 fw_queue = QSLT_BEACON;
 736         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 737                     skb->data, skb->len, PCI_DMA_TODEVICE);
 738         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 739         __le16 fc = hdr->frame_control;
 740
 741         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 742                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 743                          "DMA mapping error\n");
 744                 return;
 745         }
 746         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
 747         if (firstseg)
 748                 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 749         /* 5G have no CCK rate
 750          * Caution: The macros below are multi-line expansions.
 751          * The braces are needed no matter what checkpatch says
 752          */
 753         if (rtlhal->current_bandtype == BAND_ON_5G) {
 754                 SET_TX_DESC_TX_RATE(pdesc, DESC_RATE6M);
 755         } else {
 756                 SET_TX_DESC_TX_RATE(pdesc, DESC_RATE1M);
 757         }
 758         SET_TX_DESC_SEQ(pdesc, 0);
 759         SET_TX_DESC_LINIP(pdesc, 0);
 760         SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 761         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 762         SET_TX_DESC_LAST_SEG(pdesc, 1);
 763         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)skb->len);
 764         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 765         SET_TX_DESC_RATE_ID(pdesc, 7);
 766         SET_TX_DESC_MACID(pdesc, 0);
 767         SET_TX_DESC_PKT_SIZE(pdesc, (u16) (skb->len));
 768         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 769         SET_TX_DESC_LAST_SEG(pdesc, 1);
 770         SET_TX_DESC_OFFSET(pdesc, 0x20);
 771         SET_TX_DESC_USE_RATE(pdesc, 1);
 772
 773         if (!ieee80211_is_data_qos(fc) && ppsc->fwctrl_lps) {
 774                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 775                 SET_TX_DESC_PKT_ID(pdesc, 8);
 776         }
 777
 778         RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 779                       "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
 780         wmb();
 781         SET_TX_DESC_OWN(pdesc, 1);
 782 }
 783
 784 void rtl92de_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
 785                       u8 desc_name, u8 *val)
 786 {
 787         if (istx) {
 788                 switch (desc_name) {
 789                 case HW_DESC_OWN:
 790                         wmb();
 791                         SET_TX_DESC_OWN(pdesc, 1);
 792                         break;
 793                 case HW_DESC_TX_NEXTDESC_ADDR:
 794                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
 795                         break;
 796                 default:
 797                         WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
 798                                   desc_name);
 799                         break;
 800                 }
 801         } else {
 802                 switch (desc_name) {
 803                 case HW_DESC_RXOWN:
 804                         wmb();
 805                         SET_RX_DESC_OWN(pdesc, 1);
 806                         break;
 807                 case HW_DESC_RXBUFF_ADDR:
 808                         SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *) val);
 809                         break;
 810                 case HW_DESC_RXPKT_LEN:
 811                         SET_RX_DESC_PKT_LEN(pdesc, *(u32 *) val);
 812                         break;
 813                 case HW_DESC_RXERO:
 814                         SET_RX_DESC_EOR(pdesc, 1);
 815                         break;
 816                 default:
 817                         WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
 818                                   desc_name);
 819                         break;
 820                 }
 821         }
 822 }
 823
 824 u64 rtl92de_get_desc(struct ieee80211_hw *hw,
 825                      u8 *p_desc, bool istx, u8 desc_name)
 826 {
 827         u32 ret = 0;
 828
 829         if (istx) {
 830                 switch (desc_name) {
 831                 case HW_DESC_OWN:
 832                         ret = GET_TX_DESC_OWN(p_desc);
 833                         break;
 834                 case HW_DESC_TXBUFF_ADDR:
 835                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(p_desc);
 836                         break;
 837                 default:
 838                         WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
 839                                   desc_name);
 840                         break;
 841                 }
 842         } else {
 843                 switch (desc_name) {
 844                 case HW_DESC_OWN:
 845                         ret = GET_RX_DESC_OWN(p_desc);
 846                         break;
 847                 case HW_DESC_RXPKT_LEN:
 848                         ret = GET_RX_DESC_PKT_LEN(p_desc);
 849                         break;
 850                 case HW_DESC_RXBUFF_ADDR:
 851                         ret = GET_RX_DESC_BUFF_ADDR(p_desc);
 852                         break;
 853                 default:
 854                         WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
 855                                   desc_name);
 856                         break;
 857                 }
 858         }
 859         return ret;
 860 }
 861
 862 bool rtl92de_is_tx_desc_closed(struct ieee80211_hw *hw,
 863                                u8 hw_queue, u16 index)
 864 {
 865         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 866         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 867         u8 *entry = (u8 *)(&ring->desc[ring->idx]);
 868         u8 own = (u8)rtl92de_get_desc(hw, entry, true, HW_DESC_OWN);
 869
 870         /* a beacon packet will only use the first
 871          * descriptor by defaut, and the own bit may not
 872          * be cleared by the hardware
 873          */
 874         if (own)
 875                 return false;
 876         return true;
 877 }
 878
 879 void rtl92de_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 880 {
 881         struct rtl_priv *rtlpriv = rtl_priv(hw);
 882         if (hw_queue == BEACON_QUEUE)
 883                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
 884         else
 885                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
 886                                BIT(0) << (hw_queue));
 887 }