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 "../stats.h"
  34 #include "reg.h"
  35 #include "def.h"
  36 #include "phy.h"
  37 #include "fw.h"
  38 #include "trx.h"
  39 #include "led.h"
  40
  41 static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb,  u8 skb_queue)
  42 {
  43         __le16 fc = rtl_get_fc(skb);
  44
  45         if (unlikely(ieee80211_is_beacon(fc)))
  46                 return QSLT_BEACON;
  47         if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  48                 return QSLT_MGNT;
  49         if (ieee80211_is_nullfunc(fc))
  50                 return QSLT_HIGH;
  51
  52         /* Kernel commit 1bf4bbb4024dcdab changed EAPOL packets to use
  53          * queue V0 at priority 7; however, the RTL8192SE appears to have
  54          * that queue at priority 6
  55          */
  56         if (skb->priority == 7)
  57                 return QSLT_VO;
  58         return skb->priority;
  59 }
  60
  61 static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
  62                                        struct rtl_stats *pstats, u8 *pdesc,
  63                                        struct rx_fwinfo *p_drvinfo,
  64                                        bool packet_match_bssid,
  65                                        bool packet_toself,
  66                                        bool packet_beacon)
  67 {
  68         struct rtl_priv *rtlpriv = rtl_priv(hw);
  69         struct phy_sts_cck_8192s_t *cck_buf;
  70         struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
  71         s8 rx_pwr_all = 0, rx_pwr[4];
  72         u8 rf_rx_num = 0, evm, pwdb_all;
  73         u8 i, max_spatial_stream;
  74         u32 rssi, total_rssi = 0;
  75         bool is_cck = pstats->is_cck;
  76
  77         pstats->packet_matchbssid = packet_match_bssid;
  78         pstats->packet_toself = packet_toself;
  79         pstats->packet_beacon = packet_beacon;
  80         pstats->rx_mimo_sig_qual[0] = -1;
  81         pstats->rx_mimo_sig_qual[1] = -1;
  82
  83         if (is_cck) {
  84                 u8 report, cck_highpwr;
  85                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
  86
  87                 if (ppsc->rfpwr_state == ERFON)
  88                         cck_highpwr = (u8) rtl_get_bbreg(hw,
  89                                                 RFPGA0_XA_HSSIPARAMETER2,
  90                                                 0x200);
  91                 else
  92                         cck_highpwr = false;
  93
  94                 if (!cck_highpwr) {
  95                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
  96                         report = cck_buf->cck_agc_rpt & 0xc0;
  97                         report = report >> 6;
  98                         switch (report) {
  99                         case 0x3:
 100                                 rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
 101                                 break;
 102                         case 0x2:
 103                                 rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
 104                                 break;
 105                         case 0x1:
 106                                 rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
 107                                 break;
 108                         case 0x0:
 109                                 rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
 110                                 break;
 111                         }
 112                 } else {
 113                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 114                         report = p_drvinfo->cfosho[0] & 0x60;
 115                         report = report >> 5;
 116                         switch (report) {
 117                         case 0x3:
 118                                 rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
 119                                 break;
 120                         case 0x2:
 121                                 rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
 122                                 break;
 123                         case 0x1:
 124                                 rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
 125                                 break;
 126                         case 0x0:
 127                                 rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
 128                                 break;
 129                         }
 130                 }
 131
 132                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 133
 134                 /* CCK gain is smaller than OFDM/MCS gain,  */
 135                 /* so we add gain diff by experiences, the val is 6 */
 136                 pwdb_all += 6;
 137                 if (pwdb_all > 100)
 138                         pwdb_all = 100;
 139                 /* modify the offset to make the same gain index with OFDM. */
 140                 if (pwdb_all > 34 && pwdb_all <= 42)
 141                         pwdb_all -= 2;
 142                 else if (pwdb_all > 26 && pwdb_all <= 34)
 143                         pwdb_all -= 6;
 144                 else if (pwdb_all > 14 && pwdb_all <= 26)
 145                         pwdb_all -= 8;
 146                 else if (pwdb_all > 4 && pwdb_all <= 14)
 147                         pwdb_all -= 4;
 148
 149                 pstats->rx_pwdb_all = pwdb_all;
 150                 pstats->recvsignalpower = rx_pwr_all;
 151
 152                 if (packet_match_bssid) {
 153                         u8 sq;
 154                         if (pstats->rx_pwdb_all > 40) {
 155                                 sq = 100;
 156                         } else {
 157                                 sq = cck_buf->sq_rpt;
 158                                 if (sq > 64)
 159                                         sq = 0;
 160                                 else if (sq < 20)
 161                                         sq = 100;
 162                                 else
 163                                         sq = ((64 - sq) * 100) / 44;
 164                         }
 165
 166                         pstats->signalquality = sq;
 167                         pstats->rx_mimo_sig_qual[0] = sq;
 168                         pstats->rx_mimo_sig_qual[1] = -1;
 169                 }
 170         } else {
 171                 rtlpriv->dm.rfpath_rxenable[0] =
 172                     rtlpriv->dm.rfpath_rxenable[1] = true;
 173                 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
 174                         if (rtlpriv->dm.rfpath_rxenable[i])
 175                                 rf_rx_num++;
 176
 177                         rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
 178                                     0x3f) * 2) - 110;
 179                         rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
 180                         total_rssi += rssi;
 181                         rtlpriv->stats.rx_snr_db[i] =
 182                                          (long)(p_drvinfo->rxsnr[i] / 2);
 183
 184                         if (packet_match_bssid)
 185                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 186                 }
 187
 188                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 189                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 190                 pstats->rx_pwdb_all = pwdb_all;
 191                 pstats->rxpower = rx_pwr_all;
 192                 pstats->recvsignalpower = rx_pwr_all;
 193
 194                 if (pstats->is_ht && pstats->rate >= DESC92_RATEMCS8 &&
 195                     pstats->rate <= DESC92_RATEMCS15)
 196                         max_spatial_stream = 2;
 197                 else
 198                         max_spatial_stream = 1;
 199
 200                 for (i = 0; i < max_spatial_stream; i++) {
 201                         evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 202
 203                         if (packet_match_bssid) {
 204                                 if (i == 0)
 205                                         pstats->signalquality = (u8)(evm &
 206                                                                  0xff);
 207                                 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
 208                         }
 209                 }
 210         }
 211
 212         if (is_cck)
 213                 pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 214                                          pwdb_all));
 215         else if (rf_rx_num != 0)
 216                 pstats->signalstrength = (u8) (rtl_signal_scale_mapping(hw,
 217                                 total_rssi /= rf_rx_num));
 218 }
 219
 220 static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 221                 struct sk_buff *skb, struct rtl_stats *pstats,
 222                 u8 *pdesc, struct rx_fwinfo *p_drvinfo)
 223 {
 224         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 225         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 226
 227         struct ieee80211_hdr *hdr;
 228         u8 *tmp_buf;
 229         u8 *praddr;
 230         __le16 fc;
 231         u16 type, cfc;
 232         bool packet_matchbssid, packet_toself, packet_beacon = false;
 233
 234         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
 235
 236         hdr = (struct ieee80211_hdr *)tmp_buf;
 237         fc = hdr->frame_control;
 238         cfc = le16_to_cpu(fc);
 239         type = WLAN_FC_GET_TYPE(fc);
 240         praddr = hdr->addr1;
 241
 242         packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
 243              ether_addr_equal(mac->bssid,
 244                               (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
 245                               (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
 246                               hdr->addr3) &&
 247              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
 248
 249         packet_toself = packet_matchbssid &&
 250             ether_addr_equal(praddr, rtlefuse->dev_addr);
 251
 252         if (ieee80211_is_beacon(fc))
 253                 packet_beacon = true;
 254
 255         _rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 256                         packet_matchbssid, packet_toself, packet_beacon);
 257         rtl_process_phyinfo(hw, tmp_buf, pstats);
 258 }
 259
 260 bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
 261                            struct ieee80211_rx_status *rx_status, u8 *pdesc,
 262                            struct sk_buff *skb)
 263 {
 264         struct rx_fwinfo *p_drvinfo;
 265         u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
 266         struct ieee80211_hdr *hdr;
 267         bool first_ampdu = false;
 268
 269         stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
 270         stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
 271         stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
 272         stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
 273         stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
 274         stats->hwerror = (u16)(stats->crc | stats->icv);
 275         stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
 276
 277         stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
 278         stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
 279         stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
 280         stats->isfirst_ampdu = (bool) ((GET_RX_STATUS_DESC_PAGGR(pdesc) == 1)
 281                                && (GET_RX_STATUS_DESC_FAGGR(pdesc) == 1));
 282         stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
 283         stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
 284         stats->is_ht = (bool)GET_RX_STATUS_DESC_RX_HT(pdesc);
 285         stats->is_cck = SE_RX_HAL_IS_CCK_RATE(pdesc);
 286
 287         if (stats->hwerror)
 288                 return false;
 289
 290         rx_status->freq = hw->conf.chandef.chan->center_freq;
 291         rx_status->band = hw->conf.chandef.chan->band;
 292
 293         if (stats->crc)
 294                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 295
 296         if (stats->rx_is40Mhzpacket)
 297                 rx_status->flag |= RX_FLAG_40MHZ;
 298
 299         if (stats->is_ht)
 300                 rx_status->flag |= RX_FLAG_HT;
 301
 302         rx_status->flag |= RX_FLAG_MACTIME_START;
 303
 304         /* hw will set stats->decrypted true, if it finds the
 305          * frame is open data frame or mgmt frame,
 306          * hw will not decrypt robust managment frame
 307          * for IEEE80211w but still set stats->decrypted
 308          * true, so here we should set it back to undecrypted
 309          * for IEEE80211w frame, and mac80211 sw will help
 310          * to decrypt it */
 311         if (stats->decrypted) {
 312                 hdr = (struct ieee80211_hdr *)(skb->data +
 313                        stats->rx_drvinfo_size + stats->rx_bufshift);
 314
 315                 if (!hdr) {
 316                         /* during testing, hdr was NULL here */
 317                         return false;
 318                 }
 319                 if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
 320                         (ieee80211_has_protected(hdr->frame_control)))
 321                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 322                 else
 323                         rx_status->flag |= RX_FLAG_DECRYPTED;
 324         }
 325
 326         rx_status->rate_idx = rtlwifi_rate_mapping(hw,
 327                               stats->is_ht, stats->rate, first_ampdu);
 328
 329         rx_status->mactime = stats->timestamp_low;
 330         if (phystatus) {
 331                 p_drvinfo = (struct rx_fwinfo *)(skb->data +
 332                                                  stats->rx_bufshift);
 333                 _rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
 334                                                    p_drvinfo);
 335         }
 336
 337         /*rx_status->qual = stats->signal; */
 338         rx_status->signal = stats->recvsignalpower + 10;
 339
 340         return true;
 341 }
 342
 343 void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
 344                 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 345                 u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
 346                 struct ieee80211_sta *sta,
 347                 struct sk_buff *skb,
 348                 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 349 {
 350         struct rtl_priv *rtlpriv = rtl_priv(hw);
 351         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 352         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 353         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 354         u8 *pdesc = pdesc_tx;
 355         u16 seq_number;
 356         __le16 fc = hdr->frame_control;
 357         u8 reserved_macid = 0;
 358         u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
 359         bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
 360         bool lastseg = (!(hdr->frame_control &
 361                         cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
 362         dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 363                     PCI_DMA_TODEVICE);
 364         u8 bw_40 = 0;
 365
 366         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 367                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 368                          "DMA mapping error");
 369                 return;
 370         }
 371         if (mac->opmode == NL80211_IFTYPE_STATION) {
 372                 bw_40 = mac->bw_40;
 373         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 374                 mac->opmode == NL80211_IFTYPE_ADHOC) {
 375                 if (sta)
 376                         bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
 377         }
 378
 379         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 380
 381         rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 382
 383         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
 384
 385         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 386                 firstseg = true;
 387                 lastseg = true;
 388         }
 389
 390         if (firstseg) {
 391                 if (rtlpriv->dm.useramask) {
 392                         /* set txdesc macId */
 393                         if (ptcb_desc->mac_id < 32) {
 394                                 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 395                                 reserved_macid |= ptcb_desc->mac_id;
 396                         }
 397                 }
 398                 SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
 399
 400                 SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
 401                                  DESC92_RATEMCS0) ? 1 : 0));
 402
 403                 if (rtlhal->version == VERSION_8192S_ACUT) {
 404                         if (ptcb_desc->hw_rate == DESC92_RATE1M ||
 405                                 ptcb_desc->hw_rate  == DESC92_RATE2M ||
 406                                 ptcb_desc->hw_rate == DESC92_RATE5_5M ||
 407                                 ptcb_desc->hw_rate == DESC92_RATE11M) {
 408                                 ptcb_desc->hw_rate = DESC92_RATE12M;
 409                         }
 410                 }
 411
 412                 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
 413
 414                 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
 415                         SET_TX_DESC_TX_SHORT(pdesc, 0);
 416
 417                 /* Aggregation related */
 418                 if (info->flags & IEEE80211_TX_CTL_AMPDU)
 419                         SET_TX_DESC_AGG_ENABLE(pdesc, 1);
 420
 421                 /* For AMPDU, we must insert SSN into TX_DESC */
 422                 SET_TX_DESC_SEQ(pdesc, seq_number);
 423
 424                 /* Protection mode related */
 425                 /* For 92S, if RTS/CTS are set, HW will execute RTS. */
 426                 /* We choose only one protection mode to execute */
 427                 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
 428                                 !ptcb_desc->cts_enable) ? 1 : 0));
 429                 SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
 430                                        1 : 0));
 431                 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
 432
 433                 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
 434                 SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
 435                 SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
 436                 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
 437                        DESC92_RATE54M) ?
 438                        (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
 439                        : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 440
 441
 442                 /* Set Bandwidth and sub-channel settings. */
 443                 if (bw_40) {
 444                         if (ptcb_desc->packet_bw) {
 445                                 SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
 446                                 /* use duplicated mode */
 447                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 448                         } else {
 449                                 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
 450                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 451                                                    mac->cur_40_prime_sc);
 452                         }
 453                 } else {
 454                         SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
 455                         SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 456                 }
 457
 458                 /* 3 Fill necessary field in First Descriptor */
 459                 /*DWORD 0*/
 460                 SET_TX_DESC_LINIP(pdesc, 0);
 461                 SET_TX_DESC_OFFSET(pdesc, 32);
 462                 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
 463
 464                 /*DWORD 1*/
 465                 SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
 466
 467                 /* Fill security related */
 468                 if (info->control.hw_key) {
 469                         struct ieee80211_key_conf *keyconf;
 470
 471                         keyconf = info->control.hw_key;
 472                         switch (keyconf->cipher) {
 473                         case WLAN_CIPHER_SUITE_WEP40:
 474                         case WLAN_CIPHER_SUITE_WEP104:
 475                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 476                                 break;
 477                         case WLAN_CIPHER_SUITE_TKIP:
 478                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
 479                                 break;
 480                         case WLAN_CIPHER_SUITE_CCMP:
 481                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 482                                 break;
 483                         default:
 484                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 485                                 break;
 486
 487                         }
 488                 }
 489
 490                 /* Set Packet ID */
 491                 SET_TX_DESC_PACKET_ID(pdesc, 0);
 492
 493                 /* We will assign magement queue to BK. */
 494                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 495
 496                 /* Alwasy enable all rate fallback range */
 497                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 498
 499                 /* Fix: I don't kown why hw use 6.5M to tx when set it */
 500                 SET_TX_DESC_USER_RATE(pdesc,
 501                                       ptcb_desc->use_driver_rate ? 1 : 0);
 502
 503                 /* Set NON_QOS bit. */
 504                 if (!ieee80211_is_data_qos(fc))
 505                         SET_TX_DESC_NON_QOS(pdesc, 1);
 506
 507         }
 508
 509         /* Fill fields that are required to be initialized
 510          * in all of the descriptors */
 511         /*DWORD 0 */
 512         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 513         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 514
 515         /* DWORD 7 */
 516         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
 517
 518         /* DOWRD 8 */
 519         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 520
 521         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 522 }
 523
 524 void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
 525         bool firstseg, bool lastseg, struct sk_buff *skb)
 526 {
 527         struct rtl_priv *rtlpriv = rtl_priv(hw);
 528         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 529         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 530         struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
 531
 532         dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 533                         PCI_DMA_TODEVICE);
 534
 535         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 536                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 537                          "DMA mapping error");
 538                 return;
 539         }
 540         /* Clear all status     */
 541         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
 542
 543         /* This bit indicate this packet is used for FW download. */
 544         if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
 545                 /* For firmware downlaod we only need to set LINIP */
 546                 SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
 547
 548                 /* 92SE must set as 1 for firmware download HW DMA error */
 549                 SET_TX_DESC_FIRST_SEG(pdesc, 1);
 550                 SET_TX_DESC_LAST_SEG(pdesc, 1);
 551
 552                 /* 92SE need not to set TX packet size when firmware download */
 553                 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
 554                 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 555                 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 556
 557                 wmb();
 558                 SET_TX_DESC_OWN(pdesc, 1);
 559         } else { /* H2C Command Desc format (Host TXCMD) */
 560                 /* 92SE must set as 1 for firmware download HW DMA error */
 561                 SET_TX_DESC_FIRST_SEG(pdesc, 1);
 562                 SET_TX_DESC_LAST_SEG(pdesc, 1);
 563
 564                 SET_TX_DESC_OFFSET(pdesc, 0x20);
 565
 566                 /* Buffer size + command header */
 567                 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
 568                 /* Fixed queue of H2C command */
 569                 SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
 570
 571                 SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
 572
 573                 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 574                 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 575
 576                 wmb();
 577                 SET_TX_DESC_OWN(pdesc, 1);
 578
 579         }
 580 }
 581
 582 void rtl92se_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
 583                       u8 desc_name, u8 *val)
 584 {
 585         if (istx) {
 586                 switch (desc_name) {
 587                 case HW_DESC_OWN:
 588                         wmb();
 589                         SET_TX_DESC_OWN(pdesc, 1);
 590                         break;
 591                 case HW_DESC_TX_NEXTDESC_ADDR:
 592                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
 593                         break;
 594                 default:
 595                         RT_ASSERT(false, "ERR txdesc :%d not process\n",
 596                                   desc_name);
 597                         break;
 598                 }
 599         } else {
 600                 switch (desc_name) {
 601                 case HW_DESC_RXOWN:
 602                         wmb();
 603                         SET_RX_STATUS_DESC_OWN(pdesc, 1);
 604                         break;
 605                 case HW_DESC_RXBUFF_ADDR:
 606                         SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
 607                         break;
 608                 case HW_DESC_RXPKT_LEN:
 609                         SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
 610                         break;
 611                 case HW_DESC_RXERO:
 612                         SET_RX_STATUS_DESC_EOR(pdesc, 1);
 613                         break;
 614                 default:
 615                         RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 616                                   desc_name);
 617                         break;
 618                 }
 619         }
 620 }
 621
 622 u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
 623 {
 624         u32 ret = 0;
 625
 626         if (istx) {
 627                 switch (desc_name) {
 628                 case HW_DESC_OWN:
 629                         ret = GET_TX_DESC_OWN(desc);
 630                         break;
 631                 case HW_DESC_TXBUFF_ADDR:
 632                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
 633                         break;
 634                 default:
 635                         RT_ASSERT(false, "ERR txdesc :%d not process\n",
 636                                   desc_name);
 637                         break;
 638                 }
 639         } else {
 640                 switch (desc_name) {
 641                 case HW_DESC_OWN:
 642                         ret = GET_RX_STATUS_DESC_OWN(desc);
 643                         break;
 644                 case HW_DESC_RXPKT_LEN:
 645                         ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
 646                         break;
 647                 default:
 648                         RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 649                                   desc_name);
 650                         break;
 651                 }
 652         }
 653         return ret;
 654 }
 655
 656 void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 657 {
 658         struct rtl_priv *rtlpriv = rtl_priv(hw);
 659         rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));
 660 }