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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2010  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 "reg.h"
  34 #include "def.h"
  35 #include "phy.h"
  36 #include "trx.h"
  37 #include "led.h"
  38
  39 static enum rtl_desc_qsel _rtl92ce_map_hwqueue_to_fwqueue(__le16 fc,
  40                                                           unsigned int
  41                                                           skb_queue)
  42 {
  43         enum rtl_desc_qsel qsel;
  44
  45         if (unlikely(ieee80211_is_beacon(fc))) {
  46                 qsel = QSLT_BEACON;
  47                 return qsel;
  48         }
  49
  50         if (ieee80211_is_mgmt(fc)) {
  51                 qsel = QSLT_MGNT;
  52                 return qsel;
  53         }
  54
  55         switch (skb_queue) {
  56         case VO_QUEUE:
  57                 qsel = QSLT_VO;
  58                 break;
  59         case VI_QUEUE:
  60                 qsel = QSLT_VI;
  61                 break;
  62         case BE_QUEUE:
  63                 qsel = QSLT_BE;
  64                 break;
  65         case BK_QUEUE:
  66                 qsel = QSLT_BK;
  67                 break;
  68         default:
  69                 qsel = QSLT_BE;
  70                 RT_ASSERT(false, ("BE queue, skb_queue:%d,"
  71                                   " set qsel = 0x%X\n", skb_queue, QSLT_BE));
  72                 break;
  73         }
  74         return qsel;
  75 }
  76
  77 static int _rtl92ce_rate_mapping(bool isht, u8 desc_rate, bool first_ampdu)
  78 {
  79         int rate_idx;
  80
  81         if (first_ampdu) {
  82                 if (false == isht) {
  83                         switch (desc_rate) {
  84                         case DESC92C_RATE1M:
  85                                 rate_idx = 0;
  86                                 break;
  87                         case DESC92C_RATE2M:
  88                                 rate_idx = 1;
  89                                 break;
  90                         case DESC92C_RATE5_5M:
  91                                 rate_idx = 2;
  92                                 break;
  93                         case DESC92C_RATE11M:
  94                                 rate_idx = 3;
  95                                 break;
  96                         case DESC92C_RATE6M:
  97                                 rate_idx = 4;
  98                                 break;
  99                         case DESC92C_RATE9M:
 100                                 rate_idx = 5;
 101                                 break;
 102                         case DESC92C_RATE12M:
 103                                 rate_idx = 6;
 104                                 break;
 105                         case DESC92C_RATE18M:
 106                                 rate_idx = 7;
 107                                 break;
 108                         case DESC92C_RATE24M:
 109                                 rate_idx = 8;
 110                                 break;
 111                         case DESC92C_RATE36M:
 112                                 rate_idx = 9;
 113                                 break;
 114                         case DESC92C_RATE48M:
 115                                 rate_idx = 10;
 116                                 break;
 117                         case DESC92C_RATE54M:
 118                                 rate_idx = 11;
 119                                 break;
 120                         default:
 121                                 rate_idx = 0;
 122                                 break;
 123                         }
 124                 } else {
 125                         rate_idx = 11;
 126                 }
 127
 128                 return rate_idx;
 129         }
 130
 131         switch (desc_rate) {
 132         case DESC92C_RATE1M:
 133                 rate_idx = 0;
 134                 break;
 135         case DESC92C_RATE2M:
 136                 rate_idx = 1;
 137                 break;
 138         case DESC92C_RATE5_5M:
 139                 rate_idx = 2;
 140                 break;
 141         case DESC92C_RATE11M:
 142                 rate_idx = 3;
 143                 break;
 144         case DESC92C_RATE6M:
 145                 rate_idx = 4;
 146                 break;
 147         case DESC92C_RATE9M:
 148                 rate_idx = 5;
 149                 break;
 150         case DESC92C_RATE12M:
 151                 rate_idx = 6;
 152                 break;
 153         case DESC92C_RATE18M:
 154                 rate_idx = 7;
 155                 break;
 156         case DESC92C_RATE24M:
 157                 rate_idx = 8;
 158                 break;
 159         case DESC92C_RATE36M:
 160                 rate_idx = 9;
 161                 break;
 162         case DESC92C_RATE48M:
 163                 rate_idx = 10;
 164                 break;
 165         case DESC92C_RATE54M:
 166                 rate_idx = 11;
 167                 break;
 168         default:
 169                 rate_idx = 11;
 170                 break;
 171         }
 172         return rate_idx;
 173 }
 174
 175 static u8 _rtl92c_query_rxpwrpercentage(char antpower)
 176 {
 177         if ((antpower <= -100) || (antpower >= 20))
 178                 return 0;
 179         else if (antpower >= 0)
 180                 return 100;
 181         else
 182                 return 100 + antpower;
 183 }
 184
 185 static u8 _rtl92c_evm_db_to_percentage(char value)
 186 {
 187         char ret_val;
 188         ret_val = value;
 189
 190         if (ret_val >= 0)
 191                 ret_val = 0;
 192
 193         if (ret_val <= -33)
 194                 ret_val = -33;
 195
 196         ret_val = 0 - ret_val;
 197         ret_val *= 3;
 198
 199         if (ret_val == 99)
 200                 ret_val = 100;
 201
 202         return ret_val;
 203 }
 204
 205 static long _rtl92ce_translate_todbm(struct ieee80211_hw *hw,
 206                                      u8 signal_strength_index)
 207 {
 208         long signal_power;
 209
 210         signal_power = (long)((signal_strength_index + 1) >> 1);
 211         signal_power -= 95;
 212         return signal_power;
 213 }
 214
 215 static long _rtl92ce_signal_scale_mapping(struct ieee80211_hw *hw,
 216                 long currsig)
 217 {
 218         long retsig;
 219
 220         if (currsig >= 61 && currsig <= 100)
 221                 retsig = 90 + ((currsig - 60) / 4);
 222         else if (currsig >= 41 && currsig <= 60)
 223                 retsig = 78 + ((currsig - 40) / 2);
 224         else if (currsig >= 31 && currsig <= 40)
 225                 retsig = 66 + (currsig - 30);
 226         else if (currsig >= 21 && currsig <= 30)
 227                 retsig = 54 + (currsig - 20);
 228         else if (currsig >= 5 && currsig <= 20)
 229                 retsig = 42 + (((currsig - 5) * 2) / 3);
 230         else if (currsig == 4)
 231                 retsig = 36;
 232         else if (currsig == 3)
 233                 retsig = 27;
 234         else if (currsig == 2)
 235                 retsig = 18;
 236         else if (currsig == 1)
 237                 retsig = 9;
 238         else
 239                 retsig = currsig;
 240
 241         return retsig;
 242 }
 243
 244 static void _rtl92ce_query_rxphystatus(struct ieee80211_hw *hw,
 245                                        struct rtl_stats *pstats,
 246                                        struct rx_desc_92c *pdesc,
 247                                        struct rx_fwinfo_92c *p_drvinfo,
 248                                        bool packet_match_bssid,
 249                                        bool packet_toself,
 250                                        bool packet_beacon)
 251 {
 252         struct rtl_priv *rtlpriv = rtl_priv(hw);
 253         struct phy_sts_cck_8192s_t *cck_buf;
 254         s8 rx_pwr_all, rx_pwr[4];
 255         u8 evm, pwdb_all, rf_rx_num = 0;
 256         u8 i, max_spatial_stream;
 257         u32 rssi, total_rssi = 0;
 258         bool is_cck_rate;
 259
 260         is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
 261         pstats->packet_matchbssid = packet_match_bssid;
 262         pstats->packet_toself = packet_toself;
 263         pstats->is_cck = is_cck_rate;
 264         pstats->packet_beacon = packet_beacon;
 265         pstats->is_cck = is_cck_rate;
 266         pstats->rx_mimo_signalquality[0] = -1;
 267         pstats->rx_mimo_signalquality[1] = -1;
 268
 269         if (is_cck_rate) {
 270                 u8 report, cck_highpwr;
 271                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
 272
 273                 cck_highpwr = (u8) rtl_get_bbreg(hw,
 274                                          RFPGA0_XA_HSSIPARAMETER2,
 275                                          BIT(9));
 276                 if (!cck_highpwr) {
 277                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 278                         report = cck_buf->cck_agc_rpt & 0xc0;
 279                         report = report >> 6;
 280                         switch (report) {
 281                         case 0x3:
 282                                 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
 283                                 break;
 284                         case 0x2:
 285                                 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
 286                                 break;
 287                         case 0x1:
 288                                 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
 289                                 break;
 290                         case 0x0:
 291                                 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
 292                                 break;
 293                         }
 294                 } else {
 295                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 296                         report = p_drvinfo->cfosho[0] & 0x60;
 297                         report = report >> 5;
 298                         switch (report) {
 299                         case 0x3:
 300                                 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
 301                                 break;
 302                         case 0x2:
 303                                 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
 304                                 break;
 305                         case 0x1:
 306                                 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
 307                                 break;
 308                         case 0x0:
 309                                 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
 310                                 break;
 311                         }
 312                 }
 313
 314                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 315                 pstats->rx_pwdb_all = pwdb_all;
 316                 pstats->recvsignalpower = rx_pwr_all;
 317
 318                 if (packet_match_bssid) {
 319                         u8 sq;
 320                         if (pstats->rx_pwdb_all > 40)
 321                                 sq = 100;
 322                         else {
 323                                 sq = cck_buf->sq_rpt;
 324                                 if (sq > 64)
 325                                         sq = 0;
 326                                 else if (sq < 20)
 327                                         sq = 100;
 328                                 else
 329                                         sq = ((64 - sq) * 100) / 44;
 330                         }
 331
 332                         pstats->signalquality = sq;
 333                         pstats->rx_mimo_signalquality[0] = sq;
 334                         pstats->rx_mimo_signalquality[1] = -1;
 335                 }
 336         } else {
 337                 rtlpriv->dm.rfpath_rxenable[0] =
 338                     rtlpriv->dm.rfpath_rxenable[1] = true;
 339                 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 340                         if (rtlpriv->dm.rfpath_rxenable[i])
 341                                 rf_rx_num++;
 342
 343                         rx_pwr[i] =
 344                             ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
 345                         rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
 346                         total_rssi += rssi;
 347                         rtlpriv->stats.rx_snr_db[i] =
 348                             (long)(p_drvinfo->rxsnr[i] / 2);
 349
 350                         if (packet_match_bssid)
 351                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 352                 }
 353
 354                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 355                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 356                 pstats->rx_pwdb_all = pwdb_all;
 357                 pstats->rxpower = rx_pwr_all;
 358                 pstats->recvsignalpower = rx_pwr_all;
 359
 360                 if (pdesc->rxht && pdesc->rxmcs >= DESC92C_RATEMCS8 &&
 361                     pdesc->rxmcs <= DESC92C_RATEMCS15)
 362                         max_spatial_stream = 2;
 363                 else
 364                         max_spatial_stream = 1;
 365
 366                 for (i = 0; i < max_spatial_stream; i++) {
 367                         evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 368
 369                         if (packet_match_bssid) {
 370                                 if (i == 0)
 371                                         pstats->signalquality =
 372                                             (u8) (evm & 0xff);
 373                                 pstats->rx_mimo_signalquality[i] =
 374                                     (u8) (evm & 0xff);
 375                         }
 376                 }
 377         }
 378
 379         if (is_cck_rate)
 380                 pstats->signalstrength =
 381                     (u8) (_rtl92ce_signal_scale_mapping(hw, pwdb_all));
 382         else if (rf_rx_num != 0)
 383                 pstats->signalstrength =
 384                     (u8) (_rtl92ce_signal_scale_mapping
 385                           (hw, total_rssi /= rf_rx_num));
 386 }
 387
 388 static void _rtl92ce_process_ui_rssi(struct ieee80211_hw *hw,
 389                 struct rtl_stats *pstats)
 390 {
 391         struct rtl_priv *rtlpriv = rtl_priv(hw);
 392         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 393         u8 rfpath;
 394         u32 last_rssi, tmpval;
 395
 396         if (pstats->packet_toself || pstats->packet_beacon) {
 397                 rtlpriv->stats.rssi_calculate_cnt++;
 398
 399                 if (rtlpriv->stats.ui_rssi.total_num++ >=
 400                     PHY_RSSI_SLID_WIN_MAX) {
 401                         rtlpriv->stats.ui_rssi.total_num =
 402                             PHY_RSSI_SLID_WIN_MAX;
 403                         last_rssi =
 404                             rtlpriv->stats.ui_rssi.elements[rtlpriv->
 405                                                     stats.ui_rssi.index];
 406                         rtlpriv->stats.ui_rssi.total_val -= last_rssi;
 407                 }
 408
 409                 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
 410                 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
 411                                                 index++] =
 412                     pstats->signalstrength;
 413
 414                 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
 415                         rtlpriv->stats.ui_rssi.index = 0;
 416
 417                 tmpval = rtlpriv->stats.ui_rssi.total_val /
 418                     rtlpriv->stats.ui_rssi.total_num;
 419                 rtlpriv->stats.signal_strength =
 420                     _rtl92ce_translate_todbm(hw, (u8) tmpval);
 421                 pstats->rssi = rtlpriv->stats.signal_strength;
 422         }
 423
 424         if (!pstats->is_cck && pstats->packet_toself) {
 425                 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
 426                      rfpath++) {
 427
 428                         if (!rtl8192_phy_check_is_legal_rfpath(hw, rfpath))
 429                                 continue;
 430
 431                         if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
 432                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 433                                     pstats->rx_mimo_signalstrength[rfpath];
 434
 435                         }
 436
 437                         if (pstats->rx_mimo_signalstrength[rfpath] >
 438                             rtlpriv->stats.rx_rssi_percentage[rfpath]) {
 439                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 440                                     ((rtlpriv->stats.
 441                                       rx_rssi_percentage[rfpath] *
 442                                       (RX_SMOOTH_FACTOR - 1)) +
 443                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 444                                     (RX_SMOOTH_FACTOR);
 445
 446                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 447                                     rtlpriv->stats.rx_rssi_percentage[rfpath] +
 448                                     1;
 449                         } else {
 450                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 451                                     ((rtlpriv->stats.
 452                                       rx_rssi_percentage[rfpath] *
 453                                       (RX_SMOOTH_FACTOR - 1)) +
 454                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 455                                     (RX_SMOOTH_FACTOR);
 456                         }
 457
 458                 }
 459         }
 460 }
 461
 462 static void _rtl92ce_update_rxsignalstatistics(struct ieee80211_hw *hw,
 463                                                struct rtl_stats *pstats)
 464 {
 465         struct rtl_priv *rtlpriv = rtl_priv(hw);
 466         int weighting = 0;
 467
 468         if (rtlpriv->stats.recv_signal_power == 0)
 469                 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
 470
 471         if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
 472                 weighting = 5;
 473
 474         else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
 475                 weighting = (-5);
 476
 477         rtlpriv->stats.recv_signal_power =
 478             (rtlpriv->stats.recv_signal_power * 5 +
 479              pstats->recvsignalpower + weighting) / 6;
 480 }
 481
 482 static void _rtl92ce_process_pwdb(struct ieee80211_hw *hw,
 483                 struct rtl_stats *pstats)
 484 {
 485         struct rtl_priv *rtlpriv = rtl_priv(hw);
 486         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 487         long undecorated_smoothed_pwdb;
 488
 489         if (mac->opmode == NL80211_IFTYPE_ADHOC) {
 490                 return;
 491         } else {
 492                 undecorated_smoothed_pwdb =
 493                     rtlpriv->dm.undecorated_smoothed_pwdb;
 494         }
 495
 496         if (pstats->packet_toself || pstats->packet_beacon) {
 497                 if (undecorated_smoothed_pwdb < 0)
 498                         undecorated_smoothed_pwdb = pstats->rx_pwdb_all;
 499
 500                 if (pstats->rx_pwdb_all > (u32) undecorated_smoothed_pwdb) {
 501                         undecorated_smoothed_pwdb =
 502                             (((undecorated_smoothed_pwdb) *
 503                               (RX_SMOOTH_FACTOR - 1)) +
 504                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
 505
 506                         undecorated_smoothed_pwdb = undecorated_smoothed_pwdb
 507                             + 1;
 508                 } else {
 509                         undecorated_smoothed_pwdb =
 510                             (((undecorated_smoothed_pwdb) *
 511                               (RX_SMOOTH_FACTOR - 1)) +
 512                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
 513                 }
 514
 515                 rtlpriv->dm.undecorated_smoothed_pwdb =
 516                     undecorated_smoothed_pwdb;
 517                 _rtl92ce_update_rxsignalstatistics(hw, pstats);
 518         }
 519 }
 520
 521 static void _rtl92ce_process_ui_link_quality(struct ieee80211_hw *hw,
 522                                              struct rtl_stats *pstats)
 523 {
 524         struct rtl_priv *rtlpriv = rtl_priv(hw);
 525         u32 last_evm, n_spatialstream, tmpval;
 526
 527         if (pstats->signalquality != 0) {
 528                 if (pstats->packet_toself || pstats->packet_beacon) {
 529
 530                         if (rtlpriv->stats.ui_link_quality.total_num++ >=
 531                             PHY_LINKQUALITY_SLID_WIN_MAX) {
 532                                 rtlpriv->stats.ui_link_quality.total_num =
 533                                     PHY_LINKQUALITY_SLID_WIN_MAX;
 534                                 last_evm =
 535                                     rtlpriv->stats.
 536                                     ui_link_quality.elements[rtlpriv->
 537                                                           stats.ui_link_quality.
 538                                                           index];
 539                                 rtlpriv->stats.ui_link_quality.total_val -=
 540                                     last_evm;
 541                         }
 542
 543                         rtlpriv->stats.ui_link_quality.total_val +=
 544                             pstats->signalquality;
 545                         rtlpriv->stats.ui_link_quality.elements[rtlpriv->stats.
 546                                                                 ui_link_quality.
 547                                                                 index++] =
 548                             pstats->signalquality;
 549
 550                         if (rtlpriv->stats.ui_link_quality.index >=
 551                             PHY_LINKQUALITY_SLID_WIN_MAX)
 552                                 rtlpriv->stats.ui_link_quality.index = 0;
 553
 554                         tmpval = rtlpriv->stats.ui_link_quality.total_val /
 555                             rtlpriv->stats.ui_link_quality.total_num;
 556                         rtlpriv->stats.signal_quality = tmpval;
 557
 558                         rtlpriv->stats.last_sigstrength_inpercent = tmpval;
 559
 560                         for (n_spatialstream = 0; n_spatialstream < 2;
 561                              n_spatialstream++) {
 562                                 if (pstats->
 563                                     rx_mimo_signalquality[n_spatialstream] !=
 564                                     -1) {
 565                                         if (rtlpriv->stats.
 566                                             rx_evm_percentage[n_spatialstream]
 567                                             == 0) {
 568                                                 rtlpriv->stats.
 569                                                    rx_evm_percentage
 570                                                    [n_spatialstream] =
 571                                                    pstats->rx_mimo_signalquality
 572                                                    [n_spatialstream];
 573                                         }
 574
 575                                         rtlpriv->stats.
 576                                             rx_evm_percentage[n_spatialstream] =
 577                                             ((rtlpriv->
 578                                               stats.rx_evm_percentage
 579                                               [n_spatialstream] *
 580                                               (RX_SMOOTH_FACTOR - 1)) +
 581                                              (pstats->
 582                                               rx_mimo_signalquality
 583                                               [n_spatialstream] * 1)) /
 584                                             (RX_SMOOTH_FACTOR);
 585                                 }
 586                         }
 587                 }
 588         } else {
 589                 ;
 590         }
 591 }
 592
 593 static void _rtl92ce_process_phyinfo(struct ieee80211_hw *hw,
 594                                      u8 *buffer,
 595                                      struct rtl_stats *pcurrent_stats)
 596 {
 597
 598         if (!pcurrent_stats->packet_matchbssid &&
 599             !pcurrent_stats->packet_beacon)
 600                 return;
 601
 602         _rtl92ce_process_ui_rssi(hw, pcurrent_stats);
 603         _rtl92ce_process_pwdb(hw, pcurrent_stats);
 604         _rtl92ce_process_ui_link_quality(hw, pcurrent_stats);
 605 }
 606
 607 static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 608                                                struct sk_buff *skb,
 609                                                struct rtl_stats *pstats,
 610                                                struct rx_desc_92c *pdesc,
 611                                                struct rx_fwinfo_92c *p_drvinfo)
 612 {
 613         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 614         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 615
 616         struct ieee80211_hdr *hdr;
 617         u8 *tmp_buf;
 618         u8 *praddr;
 619         u8 *psaddr;
 620         __le16 fc;
 621         u16 type, c_fc;
 622         bool packet_matchbssid, packet_toself, packet_beacon;
 623
 624         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
 625
 626         hdr = (struct ieee80211_hdr *)tmp_buf;
 627         fc = hdr->frame_control;
 628         c_fc = le16_to_cpu(fc);
 629         type = WLAN_FC_GET_TYPE(fc);
 630         praddr = hdr->addr1;
 631         psaddr = hdr->addr2;
 632
 633         packet_matchbssid =
 634             ((IEEE80211_FTYPE_CTL != type) &&
 635              (!compare_ether_addr(mac->bssid,
 636                                   (c_fc & IEEE80211_FCTL_TODS) ?
 637                                   hdr->addr1 : (c_fc & IEEE80211_FCTL_FROMDS) ?
 638                                   hdr->addr2 : hdr->addr3)) &&
 639              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
 640
 641         packet_toself = packet_matchbssid &&
 642             (!compare_ether_addr(praddr, rtlefuse->dev_addr));
 643
 644         if (ieee80211_is_beacon(fc))
 645                 packet_beacon = true;
 646
 647         _rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 648                                    packet_matchbssid, packet_toself,
 649                                    packet_beacon);
 650
 651         _rtl92ce_process_phyinfo(hw, tmp_buf, pstats);
 652 }
 653
 654 bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
 655                            struct rtl_stats *stats,
 656                            struct ieee80211_rx_status *rx_status,
 657                            u8 *p_desc, struct sk_buff *skb)
 658 {
 659         struct rx_fwinfo_92c *p_drvinfo;
 660         struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
 661
 662         u32 phystatus = GET_RX_DESC_PHYST(pdesc);
 663         stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
 664         stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
 665             RX_DRV_INFO_SIZE_UNIT;
 666         stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
 667         stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
 668         stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
 669         stats->hwerror = (stats->crc | stats->icv);
 670         stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 671         stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
 672         stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
 673         stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
 674         stats->isampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
 675                                    && (GET_RX_DESC_FAGGR(pdesc) == 1));
 676         stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 677         stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
 678
 679         rx_status->freq = hw->conf.channel->center_freq;
 680         rx_status->band = hw->conf.channel->band;
 681
 682         if (GET_RX_DESC_CRC32(pdesc))
 683                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 684
 685         if (!GET_RX_DESC_SWDEC(pdesc))
 686                 rx_status->flag |= RX_FLAG_DECRYPTED;
 687
 688         if (GET_RX_DESC_BW(pdesc))
 689                 rx_status->flag |= RX_FLAG_40MHZ;
 690
 691         if (GET_RX_DESC_RXHT(pdesc))
 692                 rx_status->flag |= RX_FLAG_HT;
 693
 694         rx_status->flag |= RX_FLAG_MACTIME_MPDU;
 695
 696         if (stats->decrypted)
 697                 rx_status->flag |= RX_FLAG_DECRYPTED;
 698
 699         rx_status->rate_idx = _rtl92ce_rate_mapping((bool)
 700                                                     GET_RX_DESC_RXHT(pdesc),
 701                                                     (u8)
 702                                                     GET_RX_DESC_RXMCS(pdesc),
 703                                                     (bool)
 704                                                     GET_RX_DESC_PAGGR(pdesc));
 705
 706         rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
 707         if (phystatus == true) {
 708                 p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
 709                                                      stats->rx_bufshift);
 710
 711                 _rtl92ce_translate_rx_signal_stuff(hw,
 712                                                    skb, stats, pdesc,
 713                                                    p_drvinfo);
 714         }
 715
 716         /*rx_status->qual = stats->signal; */
 717         rx_status->signal = stats->rssi + 10;
 718         /*rx_status->noise = -stats->noise; */
 719
 720         return true;
 721 }
 722
 723 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
 724                           struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 725                           struct ieee80211_tx_info *info, struct sk_buff *skb,
 726                           unsigned int queue_index)
 727 {
 728         struct rtl_priv *rtlpriv = rtl_priv(hw);
 729         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 730         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 731         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 732         bool defaultadapter = true;
 733         struct ieee80211_sta *sta;
 734         u8 *pdesc = (u8 *) pdesc_tx;
 735         struct rtl_tcb_desc tcb_desc;
 736         u8 *qc = ieee80211_get_qos_ctl(hdr);
 737         u8 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
 738         u16 seq_number;
 739         __le16 fc = hdr->frame_control;
 740         u8 rate_flag = info->control.rates[0].flags;
 741
 742         enum rtl_desc_qsel fw_qsel =
 743             _rtl92ce_map_hwqueue_to_fwqueue(fc, queue_index);
 744
 745         bool firstseg = ((hdr->seq_ctrl &
 746                           cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 747
 748         bool lastseg = ((hdr->frame_control &
 749                          cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 750
 751         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 752                                             skb->data, skb->len,
 753                                             PCI_DMA_TODEVICE);
 754
 755         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 756
 757         rtl_get_tcb_desc(hw, info, skb, &tcb_desc);
 758
 759         CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92c));
 760
 761         if (firstseg) {
 762                 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 763
 764                 SET_TX_DESC_TX_RATE(pdesc, tcb_desc.hw_rate);
 765
 766                 if (tcb_desc.use_shortgi || tcb_desc.use_shortpreamble)
 767                         SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
 768
 769                 if (mac->tids[tid].agg.agg_state == RTL_AGG_ON &&
 770                     info->flags & IEEE80211_TX_CTL_AMPDU) {
 771                         SET_TX_DESC_AGG_BREAK(pdesc, 1);
 772                         SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
 773                 }
 774                 SET_TX_DESC_SEQ(pdesc, seq_number);
 775
 776                 SET_TX_DESC_RTS_ENABLE(pdesc, ((tcb_desc.rts_enable &&
 777                                                 !tcb_desc.
 778                                                 cts_enable) ? 1 : 0));
 779                 SET_TX_DESC_HW_RTS_ENABLE(pdesc,
 780                                           ((tcb_desc.rts_enable
 781                                             || tcb_desc.cts_enable) ? 1 : 0));
 782                 SET_TX_DESC_CTS2SELF(pdesc, ((tcb_desc.cts_enable) ? 1 : 0));
 783                 SET_TX_DESC_RTS_STBC(pdesc, ((tcb_desc.rts_stbc) ? 1 : 0));
 784
 785                 SET_TX_DESC_RTS_RATE(pdesc, tcb_desc.rts_rate);
 786                 SET_TX_DESC_RTS_BW(pdesc, 0);
 787                 SET_TX_DESC_RTS_SC(pdesc, tcb_desc.rts_sc);
 788                 SET_TX_DESC_RTS_SHORT(pdesc,
 789                                       ((tcb_desc.rts_rate <= DESC92C_RATE54M) ?
 790                                       (tcb_desc.rts_use_shortpreamble ? 1 : 0)
 791                                       : (tcb_desc.rts_use_shortgi ? 1 : 0)));
 792
 793                 if (mac->bw_40) {
 794                         if (tcb_desc.packet_bw) {
 795                                 SET_TX_DESC_DATA_BW(pdesc, 1);
 796                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
 797                         } else {
 798                                 SET_TX_DESC_DATA_BW(pdesc, 0);
 799
 800                                 if (rate_flag & IEEE80211_TX_RC_DUP_DATA) {
 801                                         SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 802                                                         mac->cur_40_prime_sc);
 803                                 }
 804                         }
 805                 } else {
 806                         SET_TX_DESC_DATA_BW(pdesc, 0);
 807                         SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 808                 }
 809
 810                 SET_TX_DESC_LINIP(pdesc, 0);
 811                 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
 812
 813                 rcu_read_lock();
 814                 sta = ieee80211_find_sta(mac->vif, mac->bssid);
 815                 if (sta) {
 816                         u8 ampdu_density = sta->ht_cap.ampdu_density;
 817                         SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
 818                 }
 819                 rcu_read_unlock();
 820
 821                 if (info->control.hw_key) {
 822                         struct ieee80211_key_conf *keyconf =
 823                             info->control.hw_key;
 824
 825                         switch (keyconf->cipher) {
 826                         case WLAN_CIPHER_SUITE_WEP40:
 827                         case WLAN_CIPHER_SUITE_WEP104:
 828                         case WLAN_CIPHER_SUITE_TKIP:
 829                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 830                                 break;
 831                         case WLAN_CIPHER_SUITE_CCMP:
 832                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 833                                 break;
 834                         default:
 835                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 836                                 break;
 837
 838                         }
 839                 }
 840
 841                 SET_TX_DESC_PKT_ID(pdesc, 0);
 842                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 843
 844                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 845                 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
 846                 SET_TX_DESC_DISABLE_FB(pdesc, 0);
 847                 SET_TX_DESC_USE_RATE(pdesc, tcb_desc.use_driver_rate ? 1 : 0);
 848
 849                 if (ieee80211_is_data_qos(fc)) {
 850                         if (mac->rdg_en) {
 851                                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 852                                          ("Enable RDG function.\n"));
 853                                 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
 854                                 SET_TX_DESC_HTC(pdesc, 1);
 855                         }
 856                 }
 857         }
 858
 859         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 860         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 861
 862         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
 863
 864         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
 865
 866         if (rtlpriv->dm.useramask) {
 867                 SET_TX_DESC_RATE_ID(pdesc, tcb_desc.ratr_index);
 868                 SET_TX_DESC_MACID(pdesc, tcb_desc.mac_id);
 869         } else {
 870                 SET_TX_DESC_RATE_ID(pdesc, 0xC + tcb_desc.ratr_index);
 871                 SET_TX_DESC_MACID(pdesc, tcb_desc.ratr_index);
 872         }
 873
 874         if ((!ieee80211_is_data_qos(fc)) && ppsc->leisure_ps &&
 875             ppsc->fwctrl_lps) {
 876                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 877                 SET_TX_DESC_PKT_ID(pdesc, 8);
 878
 879                 if (!defaultadapter)
 880                         SET_TX_DESC_QOS(pdesc, 1);
 881         }
 882
 883         SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
 884
 885         if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 886             is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
 887                 SET_TX_DESC_BMC(pdesc, 1);
 888         }
 889
 890         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, ("\n"));
 891 }
 892
 893 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
 894                              u8 *pdesc, bool firstseg,
 895                              bool lastseg, struct sk_buff *skb)
 896 {
 897         struct rtl_priv *rtlpriv = rtl_priv(hw);
 898         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 899         u8 fw_queue = QSLT_BEACON;
 900
 901         dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 902                                             skb->data, skb->len,
 903                                             PCI_DMA_TODEVICE);
 904
 905         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 906         __le16 fc = hdr->frame_control;
 907
 908         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
 909
 910         if (firstseg)
 911                 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 912
 913         SET_TX_DESC_TX_RATE(pdesc, DESC92C_RATE1M);
 914
 915         SET_TX_DESC_SEQ(pdesc, 0);
 916
 917         SET_TX_DESC_LINIP(pdesc, 0);
 918
 919         SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 920
 921         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 922         SET_TX_DESC_LAST_SEG(pdesc, 1);
 923
 924         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) (skb->len));
 925
 926         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
 927
 928         SET_TX_DESC_RATE_ID(pdesc, 7);
 929         SET_TX_DESC_MACID(pdesc, 0);
 930
 931         SET_TX_DESC_OWN(pdesc, 1);
 932
 933         SET_TX_DESC_PKT_SIZE((u8 *) pdesc, (u16) (skb->len));
 934
 935         SET_TX_DESC_FIRST_SEG(pdesc, 1);
 936         SET_TX_DESC_LAST_SEG(pdesc, 1);
 937
 938         SET_TX_DESC_OFFSET(pdesc, 0x20);
 939
 940         SET_TX_DESC_USE_RATE(pdesc, 1);
 941
 942         if (!ieee80211_is_data_qos(fc)) {
 943                 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 944                 SET_TX_DESC_PKT_ID(pdesc, 8);
 945         }
 946
 947         RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 948                       "H2C Tx Cmd Content\n",
 949                       pdesc, TX_DESC_SIZE);
 950 }
 951
 952 void rtl92ce_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
 953 {
 954         if (istx == true) {
 955                 switch (desc_name) {
 956                 case HW_DESC_OWN:
 957                         SET_TX_DESC_OWN(pdesc, 1);
 958                         break;
 959                 case HW_DESC_TX_NEXTDESC_ADDR:
 960                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
 961                         break;
 962                 default:
 963                         RT_ASSERT(false, ("ERR txdesc :%d"
 964                                           " not process\n", desc_name));
 965                         break;
 966                 }
 967         } else {
 968                 switch (desc_name) {
 969                 case HW_DESC_RXOWN:
 970                         SET_RX_DESC_OWN(pdesc, 1);
 971                         break;
 972                 case HW_DESC_RXBUFF_ADDR:
 973                         SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *) val);
 974                         break;
 975                 case HW_DESC_RXPKT_LEN:
 976                         SET_RX_DESC_PKT_LEN(pdesc, *(u32 *) val);
 977                         break;
 978                 case HW_DESC_RXERO:
 979                         SET_RX_DESC_EOR(pdesc, 1);
 980                         break;
 981                 default:
 982                         RT_ASSERT(false, ("ERR rxdesc :%d "
 983                                           "not process\n", desc_name));
 984                         break;
 985                 }
 986         }
 987 }
 988
 989 u32 rtl92ce_get_desc(u8 *p_desc, bool istx, u8 desc_name)
 990 {
 991         u32 ret = 0;
 992
 993         if (istx == true) {
 994                 switch (desc_name) {
 995                 case HW_DESC_OWN:
 996                         ret = GET_TX_DESC_OWN(p_desc);
 997                         break;
 998                 case HW_DESC_TXBUFF_ADDR:
 999                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(p_desc);
1000                         break;
1001                 default:
1002                         RT_ASSERT(false, ("ERR txdesc :%d "
1003                                           "not process\n", desc_name));
1004                         break;
1005                 }
1006         } else {
1007                 struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
1008                 switch (desc_name) {
1009                 case HW_DESC_OWN:
1010                         ret = GET_RX_DESC_OWN(pdesc);
1011                         break;
1012                 case HW_DESC_RXPKT_LEN:
1013                         ret = GET_RX_DESC_PKT_LEN(pdesc);
1014                         break;
1015                 default:
1016                         RT_ASSERT(false, ("ERR rxdesc :%d "
1017                                           "not process\n", desc_name));
1018                         break;
1019                 }
1020         }
1021         return ret;
1022 }
1023
1024 void rtl92ce_tx_polling(struct ieee80211_hw *hw, unsigned int hw_queue)
1025 {
1026         struct rtl_priv *rtlpriv = rtl_priv(hw);
1027         if (hw_queue == BEACON_QUEUE) {
1028                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
1029         } else {
1030                 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
1031                                BIT(0) << (hw_queue));
1032         }
1033 }
1034
1035 bool _rtl92c_cmd_send_packet(struct ieee80211_hw *hw,
1036                              struct sk_buff *skb)
1037 {
1038         struct rtl_priv *rtlpriv = rtl_priv(hw);
1039         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1040         struct rtl8192_tx_ring *ring;
1041         struct rtl_tx_desc *pdesc;
1042         u8 own;
1043         unsigned long flags;
1044         struct sk_buff *pskb = NULL;
1045
1046         ring = &rtlpci->tx_ring[BEACON_QUEUE];
1047
1048         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1049
1050         pskb = __skb_dequeue(&ring->queue);
1051         if (pskb)
1052                 kfree_skb(pskb);
1053
1054         pdesc = &ring->desc[0];
1055         own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc, true, HW_DESC_OWN);
1056
1057         rtlpriv->cfg->ops->fill_tx_cmddesc(hw, (u8 *) pdesc, 1, 1, skb);
1058
1059         __skb_queue_tail(&ring->queue, skb);
1060
1061         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1062
1063         rtlpriv->cfg->ops->tx_polling(hw, BEACON_QUEUE);
1064
1065         return true;
1066 }