drivers/net/wireless/realtek/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  * The full GNU General Public License is included in this distribution in the
  15  * file called LICENSE.
  16  *
  17  * Contact Information:
  18  * wlanfae <wlanfae@realtek.com>
  19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  20  * Hsinchu 300, Taiwan.
  21  *
  22  * Larry Finger <Larry.Finger@lwfinger.net>
  23  *
  24  *****************************************************************************/
  25
  26 #include "../wifi.h"
  27 #include "../pci.h"
  28 #include "../base.h"
  29 #include "../stats.h"
  30 #include "reg.h"
  31 #include "def.h"
  32 #include "phy.h"
  33 #include "fw.h"
  34 #include "trx.h"
  35 #include "led.h"
  36
  37 static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb,  u8 skb_queue)
  38 {
  39         __le16 fc = rtl_get_fc(skb);
  40
  41         if (unlikely(ieee80211_is_beacon(fc)))
  42                 return QSLT_BEACON;
  43         if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  44                 return QSLT_MGNT;
  45         if (ieee80211_is_nullfunc(fc))
  46                 return QSLT_HIGH;
  47
  48         /* Kernel commit 1bf4bbb4024dcdab changed EAPOL packets to use
  49          * queue V0 at priority 7; however, the RTL8192SE appears to have
  50          * that queue at priority 6
  51          */
  52         if (skb->priority == 7)
  53                 return QSLT_VO;
  54         return skb->priority;
  55 }
  56
  57 static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
  58                                        struct rtl_stats *pstats, u8 *pdesc,
  59                                        struct rx_fwinfo *p_drvinfo,
  60                                        bool packet_match_bssid,
  61                                        bool packet_toself,
  62                                        bool packet_beacon)
  63 {
  64         struct rtl_priv *rtlpriv = rtl_priv(hw);
  65         struct phy_sts_cck_8192s_t *cck_buf;
  66         struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
  67         s8 rx_pwr_all = 0, rx_pwr[4];
  68         u8 rf_rx_num = 0, evm, pwdb_all;
  69         u8 i, max_spatial_stream;
  70         u32 rssi, total_rssi = 0;
  71         bool is_cck = pstats->is_cck;
  72
  73         pstats->packet_matchbssid = packet_match_bssid;
  74         pstats->packet_toself = packet_toself;
  75         pstats->packet_beacon = packet_beacon;
  76         pstats->rx_mimo_sig_qual[0] = -1;
  77         pstats->rx_mimo_sig_qual[1] = -1;
  78
  79         if (is_cck) {
  80                 u8 report, cck_highpwr;
  81                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
  82
  83                 if (ppsc->rfpwr_state == ERFON)
  84                         cck_highpwr = (u8) rtl_get_bbreg(hw,
  85                                                 RFPGA0_XA_HSSIPARAMETER2,
  86                                                 0x200);
  87                 else
  88                         cck_highpwr = false;
  89
  90                 if (!cck_highpwr) {
  91                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
  92                         report = cck_buf->cck_agc_rpt & 0xc0;
  93                         report = report >> 6;
  94                         switch (report) {
  95                         case 0x3:
  96                                 rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
  97                                 break;
  98                         case 0x2:
  99                                 rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
 100                                 break;
 101                         case 0x1:
 102                                 rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
 103                                 break;
 104                         case 0x0:
 105                                 rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
 106                                 break;
 107                         }
 108                 } else {
 109                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 110                         report = p_drvinfo->cfosho[0] & 0x60;
 111                         report = report >> 5;
 112                         switch (report) {
 113                         case 0x3:
 114                                 rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
 115                                 break;
 116                         case 0x2:
 117                                 rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
 118                                 break;
 119                         case 0x1:
 120                                 rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
 121                                 break;
 122                         case 0x0:
 123                                 rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
 124                                 break;
 125                         }
 126                 }
 127
 128                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 129
 130                 /* CCK gain is smaller than OFDM/MCS gain,  */
 131                 /* so we add gain diff by experiences, the val is 6 */
 132                 pwdb_all += 6;
 133                 if (pwdb_all > 100)
 134                         pwdb_all = 100;
 135                 /* modify the offset to make the same gain index with OFDM. */
 136                 if (pwdb_all > 34 && pwdb_all <= 42)
 137                         pwdb_all -= 2;
 138                 else if (pwdb_all > 26 && pwdb_all <= 34)
 139                         pwdb_all -= 6;
 140                 else if (pwdb_all > 14 && pwdb_all <= 26)
 141                         pwdb_all -= 8;
 142                 else if (pwdb_all > 4 && pwdb_all <= 14)
 143                         pwdb_all -= 4;
 144
 145                 pstats->rx_pwdb_all = pwdb_all;
 146                 pstats->recvsignalpower = rx_pwr_all;
 147
 148                 if (packet_match_bssid) {
 149                         u8 sq;
 150                         if (pstats->rx_pwdb_all > 40) {
 151                                 sq = 100;
 152                         } else {
 153                                 sq = cck_buf->sq_rpt;
 154                                 if (sq > 64)
 155                                         sq = 0;
 156                                 else if (sq < 20)
 157                                         sq = 100;
 158                                 else
 159                                         sq = ((64 - sq) * 100) / 44;
 160                         }
 161
 162                         pstats->signalquality = sq;
 163                         pstats->rx_mimo_sig_qual[0] = sq;
 164                         pstats->rx_mimo_sig_qual[1] = -1;
 165                 }
 166         } else {
 167                 rtlpriv->dm.rfpath_rxenable[0] =
 168                     rtlpriv->dm.rfpath_rxenable[1] = true;
 169                 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
 170                         if (rtlpriv->dm.rfpath_rxenable[i])
 171                                 rf_rx_num++;
 172
 173                         rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
 174                                     0x3f) * 2) - 110;
 175                         rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
 176                         total_rssi += rssi;
 177                         rtlpriv->stats.rx_snr_db[i] =
 178                                          (long)(p_drvinfo->rxsnr[i] / 2);
 179
 180                         if (packet_match_bssid)
 181                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 182                 }
 183
 184                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 185                 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 186                 pstats->rx_pwdb_all = pwdb_all;
 187                 pstats->rxpower = rx_pwr_all;
 188                 pstats->recvsignalpower = rx_pwr_all;
 189
 190                 if (pstats->is_ht && pstats->rate >= DESC_RATEMCS8 &&
 191                     pstats->rate <= DESC_RATEMCS15)
 192                         max_spatial_stream = 2;
 193                 else
 194                         max_spatial_stream = 1;
 195
 196                 for (i = 0; i < max_spatial_stream; i++) {
 197                         evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 198
 199                         if (packet_match_bssid) {
 200                                 if (i == 0)
 201                                         pstats->signalquality = (u8)(evm &
 202                                                                  0xff);
 203                                 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
 204                         }
 205                 }
 206         }
 207
 208         if (is_cck)
 209                 pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 210                                          pwdb_all));
 211         else if (rf_rx_num != 0)
 212                 pstats->signalstrength = (u8) (rtl_signal_scale_mapping(hw,
 213                                 total_rssi /= rf_rx_num));
 214 }
 215
 216 static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 217                 struct sk_buff *skb, struct rtl_stats *pstats,
 218                 u8 *pdesc, struct rx_fwinfo *p_drvinfo)
 219 {
 220         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 221         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 222
 223         struct ieee80211_hdr *hdr;
 224         u8 *tmp_buf;
 225         u8 *praddr;
 226         __le16 fc;
 227         u16 type, cfc;
 228         bool packet_matchbssid, packet_toself, packet_beacon = false;
 229
 230         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
 231
 232         hdr = (struct ieee80211_hdr *)tmp_buf;
 233         fc = hdr->frame_control;
 234         cfc = le16_to_cpu(fc);
 235         type = WLAN_FC_GET_TYPE(fc);
 236         praddr = hdr->addr1;
 237
 238         packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
 239              ether_addr_equal(mac->bssid,
 240                               (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
 241                               (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
 242                               hdr->addr3) &&
 243              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
 244
 245         packet_toself = packet_matchbssid &&
 246             ether_addr_equal(praddr, rtlefuse->dev_addr);
 247
 248         if (ieee80211_is_beacon(fc))
 249                 packet_beacon = true;
 250
 251         _rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 252                         packet_matchbssid, packet_toself, packet_beacon);
 253         rtl_process_phyinfo(hw, tmp_buf, pstats);
 254 }
 255
 256 bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
 257                            struct ieee80211_rx_status *rx_status, u8 *pdesc,
 258                            struct sk_buff *skb)
 259 {
 260         struct rx_fwinfo *p_drvinfo;
 261         u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
 262         struct ieee80211_hdr *hdr;
 263
 264         stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
 265         stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
 266         stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
 267         stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
 268         stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
 269         stats->hwerror = (u16)(stats->crc | stats->icv);
 270         stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
 271
 272         stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
 273         stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
 274         stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
 275         stats->isfirst_ampdu = (bool) ((GET_RX_STATUS_DESC_PAGGR(pdesc) == 1)
 276                                && (GET_RX_STATUS_DESC_FAGGR(pdesc) == 1));
 277         stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
 278         stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
 279         stats->is_ht = (bool)GET_RX_STATUS_DESC_RX_HT(pdesc);
 280         stats->is_cck = SE_RX_HAL_IS_CCK_RATE(pdesc);
 281
 282         if (stats->hwerror)
 283                 return false;
 284
 285         rx_status->freq = hw->conf.chandef.chan->center_freq;
 286         rx_status->band = hw->conf.chandef.chan->band;
 287
 288         if (stats->crc)
 289                 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 290
 291         if (stats->rx_is40Mhzpacket)
 292                 rx_status->bw = RATE_INFO_BW_40;
 293
 294         if (stats->is_ht)
 295                 rx_status->encoding = RX_ENC_HT;
 296
 297         rx_status->flag |= RX_FLAG_MACTIME_START;
 298
 299         /* hw will set stats->decrypted true, if it finds the
 300          * frame is open data frame or mgmt frame,
 301          * hw will not decrypt robust managment frame
 302          * for IEEE80211w but still set stats->decrypted
 303          * true, so here we should set it back to undecrypted
 304          * for IEEE80211w frame, and mac80211 sw will help
 305          * to decrypt it */
 306         if (stats->decrypted) {
 307                 hdr = (struct ieee80211_hdr *)(skb->data +
 308                        stats->rx_drvinfo_size + stats->rx_bufshift);
 309
 310                 if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
 311                         (ieee80211_has_protected(hdr->frame_control)))
 312                         rx_status->flag &= ~RX_FLAG_DECRYPTED;
 313                 else
 314                         rx_status->flag |= RX_FLAG_DECRYPTED;
 315         }
 316
 317         rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
 318                                                    false, stats->rate);
 319
 320         rx_status->mactime = stats->timestamp_low;
 321         if (phystatus) {
 322                 p_drvinfo = (struct rx_fwinfo *)(skb->data +
 323                                                  stats->rx_bufshift);
 324                 _rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
 325                                                    p_drvinfo);
 326         }
 327
 328         /*rx_status->qual = stats->signal; */
 329         rx_status->signal = stats->recvsignalpower + 10;
 330
 331         return true;
 332 }
 333
 334 void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
 335                 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 336                 u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
 337                 struct ieee80211_sta *sta,
 338                 struct sk_buff *skb,
 339                 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 340 {
 341         struct rtl_priv *rtlpriv = rtl_priv(hw);
 342         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 343         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 344         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 345         u8 *pdesc = pdesc_tx;
 346         u16 seq_number;
 347         __le16 fc = hdr->frame_control;
 348         u8 reserved_macid = 0;
 349         u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
 350         bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
 351         bool lastseg = (!(hdr->frame_control &
 352                         cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
 353         dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 354                     PCI_DMA_TODEVICE);
 355         u8 bw_40 = 0;
 356
 357         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 358                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 359                          "DMA mapping error\n");
 360                 return;
 361         }
 362         if (mac->opmode == NL80211_IFTYPE_STATION) {
 363                 bw_40 = mac->bw_40;
 364         } else if (mac->opmode == NL80211_IFTYPE_AP ||
 365                 mac->opmode == NL80211_IFTYPE_ADHOC) {
 366                 if (sta)
 367                         bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
 368         }
 369
 370         seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 371
 372         rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 373
 374         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
 375
 376         if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 377                 firstseg = true;
 378                 lastseg = true;
 379         }
 380
 381         if (firstseg) {
 382                 if (rtlpriv->dm.useramask) {
 383                         /* set txdesc macId */
 384                         if (ptcb_desc->mac_id < 32) {
 385                                 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 386                                 reserved_macid |= ptcb_desc->mac_id;
 387                         }
 388                 }
 389                 SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
 390
 391                 SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
 392                                  DESC_RATEMCS0) ? 1 : 0));
 393
 394                 if (rtlhal->version == VERSION_8192S_ACUT) {
 395                         if (ptcb_desc->hw_rate == DESC_RATE1M ||
 396                             ptcb_desc->hw_rate  == DESC_RATE2M ||
 397                             ptcb_desc->hw_rate == DESC_RATE5_5M ||
 398                             ptcb_desc->hw_rate == DESC_RATE11M) {
 399                                 ptcb_desc->hw_rate = DESC_RATE12M;
 400                         }
 401                 }
 402
 403                 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
 404
 405                 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
 406                         SET_TX_DESC_TX_SHORT(pdesc, 0);
 407
 408                 /* Aggregation related */
 409                 if (info->flags & IEEE80211_TX_CTL_AMPDU)
 410                         SET_TX_DESC_AGG_ENABLE(pdesc, 1);
 411
 412                 /* For AMPDU, we must insert SSN into TX_DESC */
 413                 SET_TX_DESC_SEQ(pdesc, seq_number);
 414
 415                 /* Protection mode related */
 416                 /* For 92S, if RTS/CTS are set, HW will execute RTS. */
 417                 /* We choose only one protection mode to execute */
 418                 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
 419                                 !ptcb_desc->cts_enable) ? 1 : 0));
 420                 SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
 421                                        1 : 0));
 422                 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
 423
 424                 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
 425                 SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
 426                 SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
 427                 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
 428                        DESC_RATE54M) ?
 429                        (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
 430                        : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 431
 432
 433                 /* Set Bandwidth and sub-channel settings. */
 434                 if (bw_40) {
 435                         if (ptcb_desc->packet_bw) {
 436                                 SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
 437                                 /* use duplicated mode */
 438                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 439                         } else {
 440                                 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
 441                                 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 442                                                    mac->cur_40_prime_sc);
 443                         }
 444                 } else {
 445                         SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
 446                         SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 447                 }
 448
 449                 /* 3 Fill necessary field in First Descriptor */
 450                 /*DWORD 0*/
 451                 SET_TX_DESC_LINIP(pdesc, 0);
 452                 SET_TX_DESC_OFFSET(pdesc, 32);
 453                 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
 454
 455                 /*DWORD 1*/
 456                 SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
 457
 458                 /* Fill security related */
 459                 if (info->control.hw_key) {
 460                         struct ieee80211_key_conf *keyconf;
 461
 462                         keyconf = info->control.hw_key;
 463                         switch (keyconf->cipher) {
 464                         case WLAN_CIPHER_SUITE_WEP40:
 465                         case WLAN_CIPHER_SUITE_WEP104:
 466                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 467                                 break;
 468                         case WLAN_CIPHER_SUITE_TKIP:
 469                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
 470                                 break;
 471                         case WLAN_CIPHER_SUITE_CCMP:
 472                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 473                                 break;
 474                         default:
 475                                 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 476                                 break;
 477
 478                         }
 479                 }
 480
 481                 /* Set Packet ID */
 482                 SET_TX_DESC_PACKET_ID(pdesc, 0);
 483
 484                 /* We will assign magement queue to BK. */
 485                 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 486
 487                 /* Alwasy enable all rate fallback range */
 488                 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 489
 490                 /* Fix: I don't kown why hw use 6.5M to tx when set it */
 491                 SET_TX_DESC_USER_RATE(pdesc,
 492                                       ptcb_desc->use_driver_rate ? 1 : 0);
 493
 494                 /* Set NON_QOS bit. */
 495                 if (!ieee80211_is_data_qos(fc))
 496                         SET_TX_DESC_NON_QOS(pdesc, 1);
 497
 498         }
 499
 500         /* Fill fields that are required to be initialized
 501          * in all of the descriptors */
 502         /*DWORD 0 */
 503         SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 504         SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 505
 506         /* DWORD 7 */
 507         SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
 508
 509         /* DOWRD 8 */
 510         SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 511
 512         RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 513 }
 514
 515 void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
 516         bool firstseg, bool lastseg, struct sk_buff *skb)
 517 {
 518         struct rtl_priv *rtlpriv = rtl_priv(hw);
 519         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 520         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 521         struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
 522
 523         dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 524                         PCI_DMA_TODEVICE);
 525
 526         if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 527                 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 528                          "DMA mapping error\n");
 529                 return;
 530         }
 531         /* Clear all status     */
 532         CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
 533
 534         /* This bit indicate this packet is used for FW download. */
 535         if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
 536                 /* For firmware downlaod we only need to set LINIP */
 537                 SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
 538
 539                 /* 92SE must set as 1 for firmware download HW DMA error */
 540                 SET_TX_DESC_FIRST_SEG(pdesc, 1);
 541                 SET_TX_DESC_LAST_SEG(pdesc, 1);
 542
 543                 /* 92SE need not to set TX packet size when firmware download */
 544                 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
 545                 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 546                 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 547
 548                 wmb();
 549                 SET_TX_DESC_OWN(pdesc, 1);
 550         } else { /* H2C Command Desc format (Host TXCMD) */
 551                 /* 92SE must set as 1 for firmware download HW DMA error */
 552                 SET_TX_DESC_FIRST_SEG(pdesc, 1);
 553                 SET_TX_DESC_LAST_SEG(pdesc, 1);
 554
 555                 SET_TX_DESC_OFFSET(pdesc, 0x20);
 556
 557                 /* Buffer size + command header */
 558                 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
 559                 /* Fixed queue of H2C command */
 560                 SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
 561
 562                 SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
 563
 564                 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 565                 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 566
 567                 wmb();
 568                 SET_TX_DESC_OWN(pdesc, 1);
 569
 570         }
 571 }
 572
 573 void rtl92se_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
 574                       u8 desc_name, u8 *val)
 575 {
 576         if (istx) {
 577                 switch (desc_name) {
 578                 case HW_DESC_OWN:
 579                         wmb();
 580                         SET_TX_DESC_OWN(pdesc, 1);
 581                         break;
 582                 case HW_DESC_TX_NEXTDESC_ADDR:
 583                         SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
 584                         break;
 585                 default:
 586                         WARN_ONCE(true, "rtl8192se: ERR txdesc :%d not processed\n",
 587                                   desc_name);
 588                         break;
 589                 }
 590         } else {
 591                 switch (desc_name) {
 592                 case HW_DESC_RXOWN:
 593                         wmb();
 594                         SET_RX_STATUS_DESC_OWN(pdesc, 1);
 595                         break;
 596                 case HW_DESC_RXBUFF_ADDR:
 597                         SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
 598                         break;
 599                 case HW_DESC_RXPKT_LEN:
 600                         SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
 601                         break;
 602                 case HW_DESC_RXERO:
 603                         SET_RX_STATUS_DESC_EOR(pdesc, 1);
 604                         break;
 605                 default:
 606                         WARN_ONCE(true, "rtl8192se: ERR rxdesc :%d not processed\n",
 607                                   desc_name);
 608                         break;
 609                 }
 610         }
 611 }
 612
 613 u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
 614 {
 615         u32 ret = 0;
 616
 617         if (istx) {
 618                 switch (desc_name) {
 619                 case HW_DESC_OWN:
 620                         ret = GET_TX_DESC_OWN(desc);
 621                         break;
 622                 case HW_DESC_TXBUFF_ADDR:
 623                         ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
 624                         break;
 625                 default:
 626                         WARN_ONCE(true, "rtl8192se: ERR txdesc :%d not processed\n",
 627                                   desc_name);
 628                         break;
 629                 }
 630         } else {
 631                 switch (desc_name) {
 632                 case HW_DESC_OWN:
 633                         ret = GET_RX_STATUS_DESC_OWN(desc);
 634                         break;
 635                 case HW_DESC_RXPKT_LEN:
 636                         ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
 637                         break;
 638                 case HW_DESC_RXBUFF_ADDR:
 639                         ret = GET_RX_STATUS_DESC_BUFF_ADDR(desc);
 640                         break;
 641                 default:
 642                         WARN_ONCE(true, "rtl8192se: ERR rxdesc :%d not processed\n",
 643                                   desc_name);
 644                         break;
 645                 }
 646         }
 647         return ret;
 648 }
 649
 650 void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 651 {
 652         struct rtl_priv *rtlpriv = rtl_priv(hw);
 653         rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));
 654 }