drivers/net/wireless/rtlwifi/rtl8192se/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 "reg.h"
  34 #include "def.h"
  35 #include "phy.h"
  36 #include "fw.h"
  37 #include "trx.h"
  38 #include "led.h"
  39
  40 static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb,  u8 skb_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))
  47                 return QSLT_MGNT;
  48         if (ieee80211_is_nullfunc(fc))
  49                 return QSLT_HIGH;
  50
  51         return skb->priority;
  52 }
  53
  54 static u8 _rtl92s_query_rxpwrpercentage(char antpower)
  55 {
  56         if ((antpower <= -100) || (antpower >= 20))
  57                 return 0;
  58         else if (antpower >= 0)
  59                 return 100;
  60         else
  61                 return 100 + antpower;
  62 }
  63
  64 static u8 _rtl92s_evm_db_to_percentage(char value)
  65 {
  66         char ret_val;
  67         ret_val = value;
  68
  69         if (ret_val >= 0)
  70                 ret_val = 0;
  71
  72         if (ret_val <= -33)
  73                 ret_val = -33;
  74
  75         ret_val = 0 - ret_val;
  76         ret_val *= 3;
  77
  78         if (ret_val == 99)
  79                 ret_val = 100;
  80
  81         return ret_val;
  82 }
  83
  84 static long _rtl92se_translate_todbm(struct ieee80211_hw *hw,
  85                                      u8 signal_strength_index)
  86 {
  87         long signal_power;
  88
  89         signal_power = (long)((signal_strength_index + 1) >> 1);
  90         signal_power -= 95;
  91         return signal_power;
  92 }
  93
  94 static long _rtl92se_signal_scale_mapping(struct ieee80211_hw *hw,
  95                 long currsig)
  96 {
  97         long retsig = 0;
  98
  99         /* Step 1. Scale mapping. */
 100         if (currsig > 47)
 101                 retsig = 100;
 102         else if (currsig > 14 && currsig <= 47)
 103                 retsig = 100 - ((47 - currsig) * 3) / 2;
 104         else if (currsig > 2 && currsig <= 14)
 105                 retsig = 48 - ((14 - currsig) * 15) / 7;
 106         else if (currsig >= 0)
 107                 retsig = currsig * 9 + 1;
 108
 109         return retsig;
 110 }
 111
 112
 113 static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
 114                                        struct rtl_stats *pstats, u8 *pdesc,
 115                                        struct rx_fwinfo *p_drvinfo,
 116                                        bool packet_match_bssid,
 117                                        bool packet_toself,
 118                                        bool packet_beacon)
 119 {
 120         struct rtl_priv *rtlpriv = rtl_priv(hw);
 121         struct phy_sts_cck_8192s_t *cck_buf;
 122         s8 rx_pwr_all = 0, rx_pwr[4];
 123         u8 rf_rx_num = 0, evm, pwdb_all;
 124         u8 i, max_spatial_stream;
 125         u32 rssi, total_rssi = 0;
 126         bool in_powersavemode = false;
 127         bool is_cck = pstats->is_cck;
 128
 129         pstats->packet_matchbssid = packet_match_bssid;
 130         pstats->packet_toself = packet_toself;
 131         pstats->packet_beacon = packet_beacon;
 132         pstats->rx_mimo_sig_qual[0] = -1;
 133         pstats->rx_mimo_sig_qual[1] = -1;
 134
 135         if (is_cck) {
 136                 u8 report, cck_highpwr;
 137                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
 138
 139                 if (!in_powersavemode)
 140                         cck_highpwr = (u8) rtl_get_bbreg(hw,
 141                                                 RFPGA0_XA_HSSIPARAMETER2,
 142                                                 0x200);
 143                 else
 144                         cck_highpwr = false;
 145
 146                 if (!cck_highpwr) {
 147                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 148                         report = cck_buf->cck_agc_rpt & 0xc0;
 149                         report = report >> 6;
 150                         switch (report) {
 151                         case 0x3:
 152                                 rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
 153                                 break;
 154                         case 0x2:
 155                                 rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
 156                                 break;
 157                         case 0x1:
 158                                 rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
 159                                 break;
 160                         case 0x0:
 161                                 rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
 162                                 break;
 163                         }
 164                 } else {
 165                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 166                         report = p_drvinfo->cfosho[0] & 0x60;
 167                         report = report >> 5;
 168                         switch (report) {
 169                         case 0x3:
 170                                 rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
 171                                 break;
 172                         case 0x2:
 173                                 rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
 174                                 break;
 175                         case 0x1:
 176                                 rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
 177                                 break;
 178                         case 0x0:
 179                                 rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
 180                                 break;
 181                         }
 182                 }
 183
 184                 pwdb_all = _rtl92s_query_rxpwrpercentage(rx_pwr_all);
 185
 186                 /* CCK gain is smaller than OFDM/MCS gain,  */
 187                 /* so we add gain diff by experiences, the val is 6 */
 188                 pwdb_all += 6;
 189                 if (pwdb_all > 100)
 190                         pwdb_all = 100;
 191                 /* modify the offset to make the same gain index with OFDM. */
 192                 if (pwdb_all > 34 && pwdb_all <= 42)
 193                         pwdb_all -= 2;
 194                 else if (pwdb_all > 26 && pwdb_all <= 34)
 195                         pwdb_all -= 6;
 196                 else if (pwdb_all > 14 && pwdb_all <= 26)
 197                         pwdb_all -= 8;
 198                 else if (pwdb_all > 4 && pwdb_all <= 14)
 199                         pwdb_all -= 4;
 200
 201                 pstats->rx_pwdb_all = pwdb_all;
 202                 pstats->recvsignalpower = rx_pwr_all;
 203
 204                 if (packet_match_bssid) {
 205                         u8 sq;
 206                         if (pstats->rx_pwdb_all > 40) {
 207                                 sq = 100;
 208                         } else {
 209                                 sq = cck_buf->sq_rpt;
 210                                 if (sq > 64)
 211                                         sq = 0;
 212                                 else if (sq < 20)
 213                                         sq = 100;
 214                                 else
 215                                         sq = ((64 - sq) * 100) / 44;
 216                         }
 217
 218                         pstats->signalquality = sq;
 219                         pstats->rx_mimo_sig_qual[0] = sq;
 220                         pstats->rx_mimo_sig_qual[1] = -1;
 221                 }
 222         } else {
 223                 rtlpriv->dm.rfpath_rxenable[0] =
 224                     rtlpriv->dm.rfpath_rxenable[1] = true;
 225                 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 226                         if (rtlpriv->dm.rfpath_rxenable[i])
 227                                 rf_rx_num++;
 228
 229                         rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
 230                                     0x3f) * 2) - 110;
 231                         rssi = _rtl92s_query_rxpwrpercentage(rx_pwr[i]);
 232                         total_rssi += rssi;
 233                         rtlpriv->stats.rx_snr_db[i] =
 234                                          (long)(p_drvinfo->rxsnr[i] / 2);
 235
 236                         if (packet_match_bssid)
 237                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 238                 }
 239
 240                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 241                 pwdb_all = _rtl92s_query_rxpwrpercentage(rx_pwr_all);
 242                 pstats->rx_pwdb_all = pwdb_all;
 243                 pstats->rxpower = rx_pwr_all;
 244                 pstats->recvsignalpower = rx_pwr_all;
 245
 246                 if (pstats->is_ht && pstats->rate >= DESC92_RATEMCS8 &&
 247                     pstats->rate <= DESC92_RATEMCS15)
 248                         max_spatial_stream = 2;
 249                 else
 250                         max_spatial_stream = 1;
 251
 252                 for (i = 0; i < max_spatial_stream; i++) {
 253                         evm = _rtl92s_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 254
 255                         if (packet_match_bssid) {
 256                                 if (i == 0)
 257                                         pstats->signalquality = (u8)(evm &
 258                                                                  0xff);
 259                                 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
 260                         }
 261                 }
 262         }
 263
 264         if (is_cck)
 265                 pstats->signalstrength = (u8)(_rtl92se_signal_scale_mapping(hw,
 266                                          pwdb_all));
 267         else if (rf_rx_num != 0)
 268                 pstats->signalstrength = (u8) (_rtl92se_signal_scale_mapping(hw,
 269                                 total_rssi /= rf_rx_num));
 270 }
 271
 272 static void _rtl92se_process_ui_rssi(struct ieee80211_hw *hw,
 273                                      struct rtl_stats *pstats)
 274 {
 275         struct rtl_priv *rtlpriv = rtl_priv(hw);
 276         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 277         u8 rfpath;
 278         u32 last_rssi, tmpval;
 279
 280         if (pstats->packet_toself || pstats->packet_beacon) {
 281                 rtlpriv->stats.rssi_calculate_cnt++;
 282
 283                 if (rtlpriv->stats.ui_rssi.total_num++ >=
 284                     PHY_RSSI_SLID_WIN_MAX) {
 285                         rtlpriv->stats.ui_rssi.total_num =
 286                                          PHY_RSSI_SLID_WIN_MAX;
 287                         last_rssi = rtlpriv->stats.ui_rssi.elements[
 288                                 rtlpriv->stats.ui_rssi.index];
 289                         rtlpriv->stats.ui_rssi.total_val -= last_rssi;
 290                 }
 291
 292                 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
 293                 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.index++]
 294                          = pstats->signalstrength;
 295
 296                 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
 297                         rtlpriv->stats.ui_rssi.index = 0;
 298
 299                 tmpval = rtlpriv->stats.ui_rssi.total_val /
 300                         rtlpriv->stats.ui_rssi.total_num;
 301                 rtlpriv->stats.signal_strength = _rtl92se_translate_todbm(hw,
 302                                                                 (u8) tmpval);
 303                 pstats->rssi = rtlpriv->stats.signal_strength;
 304         }
 305
 306         if (!pstats->is_cck && pstats->packet_toself) {
 307                 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
 308                      rfpath++) {
 309                         if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
 310                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 311                                     pstats->rx_mimo_signalstrength[rfpath];
 312
 313                         }
 314
 315                         if (pstats->rx_mimo_signalstrength[rfpath] >
 316                             rtlpriv->stats.rx_rssi_percentage[rfpath]) {
 317                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 318                                     ((rtlpriv->stats.rx_rssi_percentage[rfpath]
 319                                     * (RX_SMOOTH_FACTOR - 1)) +
 320                                     (pstats->rx_mimo_signalstrength[rfpath])) /
 321                                     (RX_SMOOTH_FACTOR);
 322
 323                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 324                                     rtlpriv->stats.rx_rssi_percentage[rfpath]
 325                                     + 1;
 326                         } else {
 327                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 328                                     ((rtlpriv->stats.rx_rssi_percentage[rfpath]
 329                                     * (RX_SMOOTH_FACTOR - 1)) +
 330                                     (pstats->rx_mimo_signalstrength[rfpath])) /
 331                                     (RX_SMOOTH_FACTOR);
 332                         }
 333
 334                 }
 335         }
 336 }
 337
 338 static void _rtl92se_update_rxsignalstatistics(struct ieee80211_hw *hw,
 339                                                struct rtl_stats *pstats)
 340 {
 341         struct rtl_priv *rtlpriv = rtl_priv(hw);
 342         int weighting = 0;
 343
 344         if (rtlpriv->stats.recv_signal_power == 0)
 345                 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
 346
 347         if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
 348                 weighting = 5;
 349         else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
 350                 weighting = (-5);
 351
 352         rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power * 5
 353                                            + pstats->recvsignalpower +
 354                                            weighting) / 6;
 355 }
 356
 357 static void _rtl92se_process_pwdb(struct ieee80211_hw *hw,
 358                                   struct rtl_stats *pstats)
 359 {
 360         struct rtl_priv *rtlpriv = rtl_priv(hw);
 361         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 362         long undec_sm_pwdb = 0;
 363
 364         if (mac->opmode == NL80211_IFTYPE_ADHOC) {
 365                 return;
 366         } else {
 367                 undec_sm_pwdb =
 368                     rtlpriv->dm.undec_sm_pwdb;
 369         }
 370
 371         if (pstats->packet_toself || pstats->packet_beacon) {
 372                 if (undec_sm_pwdb < 0)
 373                         undec_sm_pwdb = pstats->rx_pwdb_all;
 374
 375                 if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
 376                         undec_sm_pwdb =
 377                             (((undec_sm_pwdb) *
 378                             (RX_SMOOTH_FACTOR - 1)) +
 379                             (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
 380
 381                         undec_sm_pwdb = undec_sm_pwdb + 1;
 382                 } else {
 383                         undec_sm_pwdb = (((undec_sm_pwdb) *
 384                               (RX_SMOOTH_FACTOR - 1)) + (pstats->rx_pwdb_all)) /
 385                               (RX_SMOOTH_FACTOR);
 386                 }
 387
 388                 rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
 389                 _rtl92se_update_rxsignalstatistics(hw, pstats);
 390         }
 391 }
 392
 393 static void rtl_92s_process_streams(struct ieee80211_hw *hw,
 394                                     struct rtl_stats *pstats)
 395 {
 396         struct rtl_priv *rtlpriv = rtl_priv(hw);
 397         u32 stream;
 398
 399         for (stream = 0; stream < 2; stream++) {
 400                 if (pstats->rx_mimo_sig_qual[stream] != -1) {
 401                         if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
 402                                 rtlpriv->stats.rx_evm_percentage[stream] =
 403                                     pstats->rx_mimo_sig_qual[stream];
 404                         }
 405
 406                         rtlpriv->stats.rx_evm_percentage[stream] =
 407                             ((rtlpriv->stats.rx_evm_percentage[stream] *
 408                                         (RX_SMOOTH_FACTOR - 1)) +
 409                              (pstats->rx_mimo_sig_qual[stream] *
 410                                         1)) / (RX_SMOOTH_FACTOR);
 411                 }
 412         }
 413 }
 414
 415 static void _rtl92se_process_ui_link_quality(struct ieee80211_hw *hw,
 416                                              struct rtl_stats *pstats)
 417 {
 418         struct rtl_priv *rtlpriv = rtl_priv(hw);
 419         u32 last_evm = 0, tmpval;
 420
 421         if (pstats->signalquality != 0) {
 422                 if (pstats->packet_toself || pstats->packet_beacon) {
 423
 424                         if (rtlpriv->stats.ui_link_quality.total_num++ >=
 425                             PHY_LINKQUALITY_SLID_WIN_MAX) {
 426                                 rtlpriv->stats.ui_link_quality.total_num =
 427                                     PHY_LINKQUALITY_SLID_WIN_MAX;
 428                                 last_evm =
 429                                     rtlpriv->stats.ui_link_quality.elements[
 430                                     rtlpriv->stats.ui_link_quality.index];
 431                                 rtlpriv->stats.ui_link_quality.total_val -=
 432                                     last_evm;
 433                         }
 434
 435                         rtlpriv->stats.ui_link_quality.total_val +=
 436                             pstats->signalquality;
 437                         rtlpriv->stats.ui_link_quality.elements[
 438                                 rtlpriv->stats.ui_link_quality.index++] =
 439                             pstats->signalquality;
 440
 441                         if (rtlpriv->stats.ui_link_quality.index >=
 442                             PHY_LINKQUALITY_SLID_WIN_MAX)
 443                                 rtlpriv->stats.ui_link_quality.index = 0;
 444
 445                         tmpval = rtlpriv->stats.ui_link_quality.total_val /
 446                             rtlpriv->stats.ui_link_quality.total_num;
 447                         rtlpriv->stats.signal_quality = tmpval;
 448
 449                         rtlpriv->stats.last_sigstrength_inpercent = tmpval;
 450
 451                         rtl_92s_process_streams(hw, pstats);
 452
 453                 }
 454         }
 455 }
 456
 457 static void _rtl92se_process_phyinfo(struct ieee80211_hw *hw,
 458                                      u8 *buffer,
 459                                      struct rtl_stats *pcurrent_stats)
 460 {
 461
 462         if (!pcurrent_stats->packet_matchbssid &&
 463             !pcurrent_stats->packet_beacon)
 464                 return;
 465
 466         _rtl92se_process_ui_rssi(hw, pcurrent_stats);
 467         _rtl92se_process_pwdb(hw, pcurrent_stats);
 468         _rtl92se_process_ui_link_quality(hw, pcurrent_stats);
 469 }
 470
 471 static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 472                 struct sk_buff *skb, struct rtl_stats *pstats,
 473                 u8 *pdesc, struct rx_fwinfo *p_drvinfo)
 474 {
 475         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 476         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 477
 478         struct ieee80211_hdr *hdr;
 479         u8 *tmp_buf;
 480         u8 *praddr;
 481         __le16 fc;
 482         u16 type, cfc;
 483         bool packet_matchbssid, packet_toself, packet_beacon;
 484
 485         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
 486
 487         hdr = (struct ieee80211_hdr *)tmp_buf;
 488         fc = hdr->frame_control;
 489         cfc = le16_to_cpu(fc);
 490         type = WLAN_FC_GET_TYPE(fc);
 491         praddr = hdr->addr1;
 492
 493         packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
 494              ether_addr_equal(mac->bssid,
 495                               (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
 496                               (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
 497                               hdr->addr3) &&
 498              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
 499
 500         packet_toself = packet_matchbssid &&
 501             ether_addr_equal(praddr, rtlefuse->dev_addr);
 502
 503         if (ieee80211_is_beacon(fc))
 504                 packet_beacon = true;
 505
 506         _rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 507                         packet_matchbssid, packet_toself, packet_beacon);
 508         _rtl92se_process_phyinfo(hw, tmp_buf, pstats);
 509 }
 510
 511 bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
 512                            struct ieee80211_rx_status *rx_status, u8 *pdesc,
 513                            struct sk_buff *skb)
 514 {
 515         struct rx_fwinfo *p_drvinfo;
 516         u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
 517         struct ieee80211_hdr *hdr;
 518         bool first_ampdu = false;
 519
 520         stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
 521         stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
 522         stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
 523         stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
 524         stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
 525         stats->hwerror = (u16)(stats->crc | stats->icv);
 526         stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
 527
 528         stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
 529         stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
 530         stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
 531         stats->isfirst_ampdu = (bool) ((GET_RX_STATUS_DESC_PAGGR(pdesc) == 1)
 532                                && (GET_RX_STATUS_DESC_FAGGR(pdesc) == 1));
 533         stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
 534         stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
 535         stats->is_ht = (bool)GET_RX_STATUS_DESC_RX_HT(pdesc);
 536         stats->is_cck = SE_RX_HAL_IS_CCK_RATE(pdesc);
 537
 538         if (stats->hwerror)
 539                 return false;
 540
 541         rx_status->freq = hw->conf.channel->center_freq;
 542         rx_status->band = hw->conf.channel->band;
 543
 544         hdr = (struct ieee80211_hdr *)(skb->data + stats->rx_drvinfo_size
 545               + stats->rx_bufshift);
 546
 547         if (stats->crc)
 548                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 549
 550         if (stats->rx_is40Mhzpacket)
 551                 rx_status->flag |= RX_FLAG_40MHZ;
 552
 553         if (stats->is_ht)
 554                 rx_status->flag |= RX_FLAG_HT;
 555
 556         rx_status->flag |= RX_FLAG_MACTIME_START;
 557
 558         /* hw will set stats->decrypted true, if it finds the
 559          * frame is open data frame or mgmt frame,
 560          * hw will not decrypt robust managment frame
 561          * for IEEE80211w but still set stats->decrypted
 562          * true, so here we should set it back to undecrypted
 563          * for IEEE80211w frame, and mac80211 sw will help
 564          * to decrypt it */
 565         if (stats->decrypted) {
 566                 if ((ieee80211_is_robust_mgmt_frame(hdr)) &&
 567                         (ieee80211_has_protected(hdr->frame_control)))
 568                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 569                 else
 570                         rx_status->flag |= RX_FLAG_DECRYPTED;
 571         }
 572
 573         rx_status->rate_idx = rtlwifi_rate_mapping(hw,
 574                               stats->is_ht, stats->rate, first_ampdu);
 575
 576         rx_status->mactime = stats->timestamp_low;
 577         if (phystatus) {
 578                 p_drvinfo = (struct rx_fwinfo *)(skb->data +
 579                                                  stats->rx_bufshift);
 580                 _rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
 581                                                    p_drvinfo);
 582         }
 583
 584         /*rx_status->qual = stats->signal; */
 585         rx_status->signal = stats->rssi + 10;
 586         /*rx_status->noise = -stats->noise; */
 587
 588         return true;
 589 }
 590
 591 void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
 592                 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 593                 struct ieee80211_tx_info *info,
 594                 struct ieee80211_sta *sta,
 595                 struct sk_buff *skb,
 596                 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 597 {
 598         struct rtl_priv *rtlpriv = rtl_priv(hw);
 599         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 600         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 601         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 602         u8 *pdesc = pdesc_tx;
 603         u16 seq_number;
 604         __le16 fc = hdr->frame_control;
 605         u8 reserved_macid = 0;
 606         u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
 607         bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
 608         bool lastseg = (!(hdr->frame_control &
 609                         cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
 610         dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 611                     PCI_DMA_TODEVICE);
 612         u8 bw_40 = 0;
 613
 614         if (mac->opmode == NL80211_IFTYPE_STATION) {
 615                 bw_40 = mac->bw_40;
 616         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 617                 mac->opmode == NL80211_IFTYPE_ADHOC) {
 618                 if (sta)
 619                         bw_40 = sta->ht_cap.cap &
 620                                     IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 621         }
 622
 623         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 624
 625         rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 626
 627         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
 628
 629         if (firstseg) {
 630                 if (rtlpriv->dm.useramask) {
 631                         /* set txdesc macId */
 632                         if (ptcb_desc->mac_id < 32) {
 633                                 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 634                                 reserved_macid |= ptcb_desc->mac_id;
 635                         }
 636                 }
 637                 SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
 638
 639                 SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
 640                                  DESC92_RATEMCS0) ? 1 : 0));
 641
 642                 if (rtlhal->version == VERSION_8192S_ACUT) {
 643                         if (ptcb_desc->hw_rate == DESC92_RATE1M ||
 644                                 ptcb_desc->hw_rate  == DESC92_RATE2M ||
 645                                 ptcb_desc->hw_rate == DESC92_RATE5_5M ||
 646                                 ptcb_desc->hw_rate == DESC92_RATE11M) {
 647                                 ptcb_desc->hw_rate = DESC92_RATE12M;
 648                         }
 649                 }
 650
 651                 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
 652
 653                 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
 654                         SET_TX_DESC_TX_SHORT(pdesc, 0);
 655
 656                 /* Aggregation related */
 657                 if (info->flags & IEEE80211_TX_CTL_AMPDU)
 658                         SET_TX_DESC_AGG_ENABLE(pdesc, 1);
 659
 660                 /* For AMPDU, we must insert SSN into TX_DESC */
 661                 SET_TX_DESC_SEQ(pdesc, seq_number);
 662
 663                 /* Protection mode related */
 664                 /* For 92S, if RTS/CTS are set, HW will execute RTS. */
 665                 /* We choose only one protection mode to execute */
 666                 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
 667                                 !ptcb_desc->cts_enable) ? 1 : 0));
 668                 SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
 669                                        1 : 0));
 670                 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
 671
 672                 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
 673                 SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
 674                 SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
 675                 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
 676                        DESC92_RATE54M) ?
 677                        (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
 678                        : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 679
 680
 681                 /* Set Bandwidth and sub-channel settings. */
 682                 if (bw_40) {
 683                         if (ptcb_desc->packet_bw) {
 684                                 SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
 685                                 /* use duplicated mode */
 686                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 687                         } else {
 688                                 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
 689                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 690                                                    mac->cur_40_prime_sc);
 691                         }
 692                 } else {
 693                         SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
 694                         SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 695                 }
 696
 697                 /* 3 Fill necessary field in First Descriptor */
 698                 /*DWORD 0*/
 699                 SET_TX_DESC_LINIP(pdesc, 0);
 700                 SET_TX_DESC_OFFSET(pdesc, 32);
 701                 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
 702
 703                 /*DWORD 1*/
 704                 SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
 705
 706                 /* Fill security related */
 707                 if (info->control.hw_key) {
 708                         struct ieee80211_key_conf *keyconf;
 709
 710                         keyconf = info->control.hw_key;
 711                         switch (keyconf->cipher) {
 712                         case WLAN_CIPHER_SUITE_WEP40:
 713                         case WLAN_CIPHER_SUITE_WEP104:
 714                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 715                                 break;
 716                         case WLAN_CIPHER_SUITE_TKIP:
 717                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
 718                                 break;
 719                         case WLAN_CIPHER_SUITE_CCMP:
 720                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 721                                 break;
 722                         default:
 723                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 724                                 break;
 725
 726                         }
 727                 }
 728
 729                 /* Set Packet ID */
 730                 SET_TX_DESC_PACKET_ID(pdesc, 0);
 731
 732                 /* We will assign magement queue to BK. */
 733                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 734
 735                 /* Alwasy enable all rate fallback range */
 736                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 737
 738                 /* Fix: I don't kown why hw use 6.5M to tx when set it */
 739                 SET_TX_DESC_USER_RATE(pdesc,
 740                                       ptcb_desc->use_driver_rate ? 1 : 0);
 741
 742                 /* Set NON_QOS bit. */
 743                 if (!ieee80211_is_data_qos(fc))
 744                         SET_TX_DESC_NON_QOS(pdesc, 1);
 745
 746         }
 747
 748         /* Fill fields that are required to be initialized
 749          * in all of the descriptors */
 750         /*DWORD 0 */
 751         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 752         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 753
 754         /* DWORD 7 */
 755         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
 756
 757         /* DOWRD 8 */
 758         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 759
 760         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 761 }
 762
 763 void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
 764         bool firstseg, bool lastseg, struct sk_buff *skb)
 765 {
 766         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 767         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 768         struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
 769
 770         dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 771                         PCI_DMA_TODEVICE);
 772
 773     /* Clear all status */
 774         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
 775
 776         /* This bit indicate this packet is used for FW download. */
 777         if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
 778                 /* For firmware downlaod we only need to set LINIP */
 779                 SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
 780
 781                 /* 92SE must set as 1 for firmware download HW DMA error */
 782                 SET_TX_DESC_FIRST_SEG(pdesc, 1);
 783                 SET_TX_DESC_LAST_SEG(pdesc, 1);
 784
 785                 /* 92SE need not to set TX packet size when firmware download */
 786                 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
 787                 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 788                 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 789
 790                 wmb();
 791                 SET_TX_DESC_OWN(pdesc, 1);
 792         } else { /* H2C Command Desc format (Host TXCMD) */
 793                 /* 92SE must set as 1 for firmware download HW DMA error */
 794                 SET_TX_DESC_FIRST_SEG(pdesc, 1);
 795                 SET_TX_DESC_LAST_SEG(pdesc, 1);
 796
 797                 SET_TX_DESC_OFFSET(pdesc, 0x20);
 798
 799                 /* Buffer size + command header */
 800                 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
 801                 /* Fixed queue of H2C command */
 802                 SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
 803
 804                 SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
 805
 806                 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 807                 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 808
 809                 wmb();
 810                 SET_TX_DESC_OWN(pdesc, 1);
 811
 812         }
 813 }
 814
 815 void rtl92se_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
 816 {
 817         if (istx) {
 818                 switch (desc_name) {
 819                 case HW_DESC_OWN:
 820                         wmb();
 821                         SET_TX_DESC_OWN(pdesc, 1);
 822                         break;
 823                 case HW_DESC_TX_NEXTDESC_ADDR:
 824                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
 825                         break;
 826                 default:
 827                         RT_ASSERT(false, "ERR txdesc :%d not process\n",
 828                                   desc_name);
 829                         break;
 830                 }
 831         } else {
 832                 switch (desc_name) {
 833                 case HW_DESC_RXOWN:
 834                         wmb();
 835                         SET_RX_STATUS_DESC_OWN(pdesc, 1);
 836                         break;
 837                 case HW_DESC_RXBUFF_ADDR:
 838                         SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
 839                         break;
 840                 case HW_DESC_RXPKT_LEN:
 841                         SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
 842                         break;
 843                 case HW_DESC_RXERO:
 844                         SET_RX_STATUS_DESC_EOR(pdesc, 1);
 845                         break;
 846                 default:
 847                         RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 848                                   desc_name);
 849                         break;
 850                 }
 851         }
 852 }
 853
 854 u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
 855 {
 856         u32 ret = 0;
 857
 858         if (istx) {
 859                 switch (desc_name) {
 860                 case HW_DESC_OWN:
 861                         ret = GET_TX_DESC_OWN(desc);
 862                         break;
 863                 case HW_DESC_TXBUFF_ADDR:
 864                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
 865                         break;
 866                 default:
 867                         RT_ASSERT(false, "ERR txdesc :%d not process\n",
 868                                   desc_name);
 869                         break;
 870                 }
 871         } else {
 872                 switch (desc_name) {
 873                 case HW_DESC_OWN:
 874                         ret = GET_RX_STATUS_DESC_OWN(desc);
 875                         break;
 876                 case HW_DESC_RXPKT_LEN:
 877                         ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
 878                         break;
 879                 default:
 880                         RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 881                                   desc_name);
 882                         break;
 883                 }
 884         }
 885         return ret;
 886 }
 887
 888 void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 889 {
 890         struct rtl_priv *rtlpriv = rtl_priv(hw);
 891         rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));
 892 }