linux/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c
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   1/******************************************************************************
   2 *
   3 * Copyright(c) 2009-2013  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 "trx.h"
  34#include "led.h"
  35#include "dm.h"
  36#include "phy.h"
  37
  38static u8 _rtl88ee_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
  39{
  40        __le16 fc = rtl_get_fc(skb);
  41
  42        if (unlikely(ieee80211_is_beacon(fc)))
  43                return QSLT_BEACON;
  44        if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  45                return QSLT_MGNT;
  46
  47        return skb->priority;
  48}
  49
  50static void _rtl88ee_query_rxphystatus(struct ieee80211_hw *hw,
  51                        struct rtl_stats *pstatus, u8 *pdesc,
  52                        struct rx_fwinfo_88e *p_drvinfo,
  53                        bool bpacket_match_bssid,
  54                        bool bpacket_toself, bool packet_beacon)
  55{
  56        struct rtl_priv *rtlpriv = rtl_priv(hw);
  57        struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
  58        struct phy_sts_cck_8192s_t *cck_buf;
  59        struct phy_status_rpt *phystrpt =
  60                (struct phy_status_rpt *)p_drvinfo;
  61        struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
  62        char rx_pwr_all = 0, rx_pwr[4];
  63        u8 rf_rx_num = 0, evm, pwdb_all;
  64        u8 i, max_spatial_stream;
  65        u32 rssi, total_rssi = 0;
  66        bool is_cck = pstatus->is_cck;
  67        u8 lan_idx, vga_idx;
  68
  69        /* Record it for next packet processing */
  70        pstatus->packet_matchbssid = bpacket_match_bssid;
  71        pstatus->packet_toself = bpacket_toself;
  72        pstatus->packet_beacon = packet_beacon;
  73        pstatus->rx_mimo_signalquality[0] = -1;
  74        pstatus->rx_mimo_signalquality[1] = -1;
  75
  76        if (is_cck) {
  77                u8 cck_highpwr;
  78                u8 cck_agc_rpt;
  79                /* CCK Driver info Structure is not the same as OFDM packet. */
  80                cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
  81                cck_agc_rpt = cck_buf->cck_agc_rpt;
  82
  83                /* (1)Hardware does not provide RSSI for CCK
  84                 * (2)PWDB, Average PWDB cacluated by
  85                 * hardware (for rate adaptive)
  86                 */
  87                if (ppsc->rfpwr_state == ERFON)
  88                        cck_highpwr =
  89                                (u8)rtl_get_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2,
  90                                                  BIT(9));
  91                else
  92                        cck_highpwr = false;
  93
  94                lan_idx = ((cck_agc_rpt & 0xE0) >> 5);
  95                vga_idx = (cck_agc_rpt & 0x1f);
  96                switch (lan_idx) {
  97                case 7:
  98                        if (vga_idx <= 27)
  99                                /*VGA_idx = 27~2*/
 100                                rx_pwr_all = -100 + 2*(27-vga_idx);
 101                        else
 102                                rx_pwr_all = -100;
 103                        break;
 104                case 6:
 105                        /*VGA_idx = 2~0*/
 106                        rx_pwr_all = -48 + 2*(2-vga_idx);
 107                        break;
 108                case 5:
 109                        /*VGA_idx = 7~5*/
 110                        rx_pwr_all = -42 + 2*(7-vga_idx);
 111                        break;
 112                case 4:
 113                        /*VGA_idx = 7~4*/
 114                        rx_pwr_all = -36 + 2*(7-vga_idx);
 115                        break;
 116                case 3:
 117                        /*VGA_idx = 7~0*/
 118                        rx_pwr_all = -24 + 2*(7-vga_idx);
 119                        break;
 120                case 2:
 121                        if (cck_highpwr)
 122                                /*VGA_idx = 5~0*/
 123                                rx_pwr_all = -12 + 2*(5-vga_idx);
 124                        else
 125                                rx_pwr_all = -6 + 2*(5-vga_idx);
 126                        break;
 127                case 1:
 128                        rx_pwr_all = 8-2*vga_idx;
 129                        break;
 130                case 0:
 131                        rx_pwr_all = 14-2*vga_idx;
 132                        break;
 133                default:
 134                        break;
 135                }
 136                rx_pwr_all += 6;
 137                pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 138                /* CCK gain is smaller than OFDM/MCS gain,  */
 139                /* so we add gain diff by experiences, the val is 6 */
 140                pwdb_all += 6;
 141                if (pwdb_all > 100)
 142                        pwdb_all = 100;
 143                /* modify the offset to make the same
 144                 * gain index with OFDM.
 145                 */
 146                if (pwdb_all > 34 && pwdb_all <= 42)
 147                        pwdb_all -= 2;
 148                else if (pwdb_all > 26 && pwdb_all <= 34)
 149                        pwdb_all -= 6;
 150                else if (pwdb_all > 14 && pwdb_all <= 26)
 151                        pwdb_all -= 8;
 152                else if (pwdb_all > 4 && pwdb_all <= 14)
 153                        pwdb_all -= 4;
 154                if (!cck_highpwr) {
 155                        if (pwdb_all >= 80)
 156                                pwdb_all = ((pwdb_all-80)<<1) +
 157                                           ((pwdb_all-80)>>1) + 80;
 158                        else if ((pwdb_all <= 78) && (pwdb_all >= 20))
 159                                pwdb_all += 3;
 160                        if (pwdb_all > 100)
 161                                pwdb_all = 100;
 162                }
 163
 164                pstatus->rx_pwdb_all = pwdb_all;
 165                pstatus->recvsignalpower = rx_pwr_all;
 166
 167                /* (3) Get Signal Quality (EVM) */
 168                if (bpacket_match_bssid) {
 169                        u8 sq;
 170
 171                        if (pstatus->rx_pwdb_all > 40)
 172                                sq = 100;
 173                        else {
 174                                sq = cck_buf->sq_rpt;
 175                                if (sq > 64)
 176                                        sq = 0;
 177                                else if (sq < 20)
 178                                        sq = 100;
 179                                else
 180                                        sq = ((64 - sq) * 100) / 44;
 181                        }
 182
 183                        pstatus->signalquality = sq;
 184                        pstatus->rx_mimo_signalquality[0] = sq;
 185                        pstatus->rx_mimo_signalquality[1] = -1;
 186                }
 187        } else {
 188                rtlpriv->dm.rfpath_rxenable[0] =
 189                    rtlpriv->dm.rfpath_rxenable[1] = true;
 190
 191                /* (1)Get RSSI for HT rate */
 192                for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
 193                        /* we will judge RF RX path now. */
 194                        if (rtlpriv->dm.rfpath_rxenable[i])
 195                                rf_rx_num++;
 196
 197                        rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
 198                                      0x3f) * 2) - 110;
 199
 200                        /* Translate DBM to percentage. */
 201                        rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
 202                        total_rssi += rssi;
 203
 204                        /* Get Rx snr value in DB */
 205                        rtlpriv->stats.rx_snr_db[i] =
 206                                (long)(p_drvinfo->rxsnr[i] / 2);
 207
 208                        /* Record Signal Strength for next packet */
 209                        if (bpacket_match_bssid)
 210                                pstatus->rx_mimo_signalstrength[i] = (u8)rssi;
 211                }
 212
 213                /* (2)PWDB, Average PWDB cacluated by
 214                 * hardware (for rate adaptive)
 215                 */
 216                rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 217
 218                pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 219                pstatus->rx_pwdb_all = pwdb_all;
 220                pstatus->rxpower = rx_pwr_all;
 221                pstatus->recvsignalpower = rx_pwr_all;
 222
 223                /* (3)EVM of HT rate */
 224                if (pstatus->is_ht && pstatus->rate >= DESC92C_RATEMCS8 &&
 225                    pstatus->rate <= DESC92C_RATEMCS15)
 226                        max_spatial_stream = 2;
 227                else
 228                        max_spatial_stream = 1;
 229
 230                for (i = 0; i < max_spatial_stream; i++) {
 231                        evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 232
 233                        if (bpacket_match_bssid) {
 234                                /* Fill value in RFD, Get the first
 235                                 * spatial stream onlyi
 236                                 */
 237                                if (i == 0)
 238                                        pstatus->signalquality =
 239                                                (u8)(evm & 0xff);
 240                                pstatus->rx_mimo_signalquality[i] =
 241                                        (u8)(evm & 0xff);
 242                        }
 243                }
 244        }
 245
 246        /* UI BSS List signal strength(in percentage),
 247         * make it good looking, from 0~100.
 248         */
 249        if (is_cck)
 250                pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 251                        pwdb_all));
 252        else if (rf_rx_num != 0)
 253                pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 254                        total_rssi /= rf_rx_num));
 255        /*HW antenna diversity*/
 256        rtldm->fat_table.antsel_rx_keep_0 = phystrpt->ant_sel;
 257        rtldm->fat_table.antsel_rx_keep_1 = phystrpt->ant_sel_b;
 258        rtldm->fat_table.antsel_rx_keep_2 = phystrpt->antsel_rx_keep_2;
 259}
 260
 261static void _rtl88ee_smart_antenna(struct ieee80211_hw *hw,
 262        struct rtl_stats *pstatus)
 263{
 264        struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
 265        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 266        u8 antsel_tr_mux;
 267        struct fast_ant_training *pfat_table = &rtldm->fat_table;
 268
 269        if (rtlefuse->antenna_div_type == CG_TRX_SMART_ANTDIV) {
 270                if (pfat_table->fat_state == FAT_TRAINING_STATE) {
 271                        if (pstatus->packet_toself) {
 272                                antsel_tr_mux =
 273                                        (pfat_table->antsel_rx_keep_2 << 2) |
 274                                        (pfat_table->antsel_rx_keep_1 << 1) |
 275                                        pfat_table->antsel_rx_keep_0;
 276                                pfat_table->ant_sum[antsel_tr_mux] +=
 277                                        pstatus->rx_pwdb_all;
 278                                pfat_table->ant_cnt[antsel_tr_mux]++;
 279                        }
 280                }
 281        } else if ((rtlefuse->antenna_div_type == CG_TRX_HW_ANTDIV) ||
 282        (rtlefuse->antenna_div_type == CGCS_RX_HW_ANTDIV)) {
 283                if (pstatus->packet_toself || pstatus->packet_matchbssid) {
 284                        antsel_tr_mux = (pfat_table->antsel_rx_keep_2 << 2) |
 285                                        (pfat_table->antsel_rx_keep_1 << 1) |
 286                                        pfat_table->antsel_rx_keep_0;
 287                        rtl88e_dm_ant_sel_statistics(hw, antsel_tr_mux, 0,
 288                                                     pstatus->rx_pwdb_all);
 289                }
 290
 291        }
 292}
 293
 294static void _rtl88ee_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 295                                               struct sk_buff *skb,
 296                                               struct rtl_stats *pstatus,
 297                                               u8 *pdesc,
 298                                               struct rx_fwinfo_88e *p_drvinfo)
 299{
 300        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 301        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 302        struct ieee80211_hdr *hdr;
 303        u8 *tmp_buf;
 304        u8 *praddr;
 305        u8 *psaddr;
 306        __le16 fc;
 307        bool packet_matchbssid, packet_toself, packet_beacon;
 308
 309        tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift;
 310
 311        hdr = (struct ieee80211_hdr *)tmp_buf;
 312        fc = hdr->frame_control;
 313        praddr = hdr->addr1;
 314        psaddr = ieee80211_get_SA(hdr);
 315        memcpy(pstatus->psaddr, psaddr, ETH_ALEN);
 316
 317        packet_matchbssid = ((!ieee80211_is_ctl(fc)) &&
 318             (ether_addr_equal(mac->bssid, ieee80211_has_tods(fc) ?
 319                               hdr->addr1 : ieee80211_has_fromds(fc) ?
 320                               hdr->addr2 : hdr->addr3)) &&
 321                               (!pstatus->hwerror) &&
 322                               (!pstatus->crc) && (!pstatus->icv));
 323
 324        packet_toself = packet_matchbssid &&
 325            (ether_addr_equal(praddr, rtlefuse->dev_addr));
 326
 327        if (ieee80211_is_beacon(hdr->frame_control))
 328                packet_beacon = true;
 329        else
 330                packet_beacon = false;
 331
 332        _rtl88ee_query_rxphystatus(hw, pstatus, pdesc, p_drvinfo,
 333                                   packet_matchbssid, packet_toself,
 334                                   packet_beacon);
 335        _rtl88ee_smart_antenna(hw, pstatus);
 336        rtl_process_phyinfo(hw, tmp_buf, pstatus);
 337}
 338
 339static void _rtl88ee_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
 340                                      u8 *virtualaddress)
 341{
 342        u32 dwtmp = 0;
 343        memset(virtualaddress, 0, 8);
 344
 345        SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
 346        if (ptcb_desc->empkt_num == 1) {
 347                dwtmp = ptcb_desc->empkt_len[0];
 348        } else {
 349                dwtmp = ptcb_desc->empkt_len[0];
 350                dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 351                dwtmp += ptcb_desc->empkt_len[1];
 352        }
 353        SET_EARLYMODE_LEN0(virtualaddress, dwtmp);
 354
 355        if (ptcb_desc->empkt_num <= 3) {
 356                dwtmp = ptcb_desc->empkt_len[2];
 357        } else {
 358                dwtmp = ptcb_desc->empkt_len[2];
 359                dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 360                dwtmp += ptcb_desc->empkt_len[3];
 361        }
 362        SET_EARLYMODE_LEN1(virtualaddress, dwtmp);
 363        if (ptcb_desc->empkt_num <= 5) {
 364                dwtmp = ptcb_desc->empkt_len[4];
 365        } else {
 366                dwtmp = ptcb_desc->empkt_len[4];
 367                dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 368                dwtmp += ptcb_desc->empkt_len[5];
 369        }
 370        SET_EARLYMODE_LEN2_1(virtualaddress, dwtmp & 0xF);
 371        SET_EARLYMODE_LEN2_2(virtualaddress, dwtmp >> 4);
 372        if (ptcb_desc->empkt_num <= 7) {
 373                dwtmp = ptcb_desc->empkt_len[6];
 374        } else {
 375                dwtmp = ptcb_desc->empkt_len[6];
 376                dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 377                dwtmp += ptcb_desc->empkt_len[7];
 378        }
 379        SET_EARLYMODE_LEN3(virtualaddress, dwtmp);
 380        if (ptcb_desc->empkt_num <= 9) {
 381                dwtmp = ptcb_desc->empkt_len[8];
 382        } else {
 383                dwtmp = ptcb_desc->empkt_len[8];
 384                dwtmp += ((dwtmp%4) ? (4-dwtmp%4) : 0)+4;
 385                dwtmp += ptcb_desc->empkt_len[9];
 386        }
 387        SET_EARLYMODE_LEN4(virtualaddress, dwtmp);
 388}
 389
 390bool rtl88ee_rx_query_desc(struct ieee80211_hw *hw,
 391                           struct rtl_stats *status,
 392                           struct ieee80211_rx_status *rx_status,
 393                           u8 *pdesc, struct sk_buff *skb)
 394{
 395        struct rtl_priv *rtlpriv = rtl_priv(hw);
 396        struct rx_fwinfo_88e *p_drvinfo;
 397        struct ieee80211_hdr *hdr;
 398
 399        u32 phystatus = GET_RX_DESC_PHYST(pdesc);
 400        status->packet_report_type = (u8)GET_RX_STATUS_DESC_RPT_SEL(pdesc);
 401        if (status->packet_report_type == TX_REPORT2)
 402                status->length = (u16)GET_RX_RPT2_DESC_PKT_LEN(pdesc);
 403        else
 404                status->length = (u16)GET_RX_DESC_PKT_LEN(pdesc);
 405        status->rx_drvinfo_size = (u8)GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
 406            RX_DRV_INFO_SIZE_UNIT;
 407        status->rx_bufshift = (u8)(GET_RX_DESC_SHIFT(pdesc) & 0x03);
 408        status->icv = (u16)GET_RX_DESC_ICV(pdesc);
 409        status->crc = (u16)GET_RX_DESC_CRC32(pdesc);
 410        status->hwerror = (status->crc | status->icv);
 411        status->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 412        status->rate = (u8)GET_RX_DESC_RXMCS(pdesc);
 413        status->shortpreamble = (u16)GET_RX_DESC_SPLCP(pdesc);
 414        status->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
 415        status->isfirst_ampdu = (bool)((GET_RX_DESC_PAGGR(pdesc) == 1) &&
 416                                (GET_RX_DESC_FAGGR(pdesc) == 1));
 417        if (status->packet_report_type == NORMAL_RX)
 418                status->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 419        status->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
 420        status->is_ht = (bool)GET_RX_DESC_RXHT(pdesc);
 421
 422        status->is_cck = RTL8188_RX_HAL_IS_CCK_RATE(status->rate);
 423
 424        status->macid = GET_RX_DESC_MACID(pdesc);
 425        if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc))
 426                status->wake_match = BIT(2);
 427        else if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc))
 428                status->wake_match = BIT(1);
 429        else if (GET_RX_STATUS_DESC_UNICAST_MATCH(pdesc))
 430                status->wake_match = BIT(0);
 431        else
 432                status->wake_match = 0;
 433        if (status->wake_match)
 434                RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
 435                "GGGGGGGGGGGGGet Wakeup Packet!! WakeMatch=%d\n",
 436                status->wake_match);
 437        rx_status->freq = hw->conf.chandef.chan->center_freq;
 438        rx_status->band = hw->conf.chandef.chan->band;
 439
 440        hdr = (struct ieee80211_hdr *)(skb->data + status->rx_drvinfo_size
 441                        + status->rx_bufshift);
 442
 443        if (status->crc)
 444                rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 445
 446        if (status->rx_is40Mhzpacket)
 447                rx_status->flag |= RX_FLAG_40MHZ;
 448
 449        if (status->is_ht)
 450                rx_status->flag |= RX_FLAG_HT;
 451
 452        rx_status->flag |= RX_FLAG_MACTIME_START;
 453
 454        /* hw will set status->decrypted true, if it finds the
 455         * frame is open data frame or mgmt frame.
 456         * So hw will not decryption robust managment frame
 457         * for IEEE80211w but still set status->decrypted
 458         * true, so here we should set it back to undecrypted
 459         * for IEEE80211w frame, and mac80211 sw will help
 460         * to decrypt it
 461         */
 462        if (status->decrypted) {
 463                if ((!_ieee80211_is_robust_mgmt_frame(hdr)) &&
 464                    (ieee80211_has_protected(hdr->frame_control)))
 465                        rx_status->flag |= RX_FLAG_DECRYPTED;
 466                else
 467                        rx_status->flag &= ~RX_FLAG_DECRYPTED;
 468        }
 469
 470        /* rate_idx: index of data rate into band's
 471         * supported rates or MCS index if HT rates
 472         * are use (RX_FLAG_HT)
 473         * Notice: this is diff with windows define
 474         */
 475        rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht,
 476                                                   false, status->rate);
 477
 478        rx_status->mactime = status->timestamp_low;
 479        if (phystatus == true) {
 480                p_drvinfo = (struct rx_fwinfo_88e *)(skb->data +
 481                                                     status->rx_bufshift);
 482
 483                _rtl88ee_translate_rx_signal_stuff(hw,
 484                                                   skb, status, pdesc,
 485                                                   p_drvinfo);
 486        }
 487        rx_status->signal = status->recvsignalpower + 10;
 488        if (status->packet_report_type == TX_REPORT2) {
 489                status->macid_valid_entry[0] =
 490                         GET_RX_RPT2_DESC_MACID_VALID_1(pdesc);
 491                status->macid_valid_entry[1] =
 492                         GET_RX_RPT2_DESC_MACID_VALID_2(pdesc);
 493        }
 494        return true;
 495}
 496
 497void rtl88ee_tx_fill_desc(struct ieee80211_hw *hw,
 498                          struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 499                          u8 *txbd, struct ieee80211_tx_info *info,
 500                          struct ieee80211_sta *sta,
 501                          struct sk_buff *skb,
 502                          u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 503
 504{
 505        struct rtl_priv *rtlpriv = rtl_priv(hw);
 506        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 507        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 508        struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 509        u8 *pdesc = (u8 *)pdesc_tx;
 510        u16 seq_number;
 511        __le16 fc = hdr->frame_control;
 512        unsigned int buf_len = 0;
 513        unsigned int skb_len = skb->len;
 514        u8 fw_qsel = _rtl88ee_map_hwqueue_to_fwqueue(skb, hw_queue);
 515        bool firstseg = ((hdr->seq_ctrl &
 516                            cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 517        bool lastseg = ((hdr->frame_control &
 518                           cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 519        dma_addr_t mapping;
 520        u8 bw_40 = 0;
 521        u8 short_gi = 0;
 522
 523        if (mac->opmode == NL80211_IFTYPE_STATION) {
 524                bw_40 = mac->bw_40;
 525        } else if (mac->opmode == NL80211_IFTYPE_AP ||
 526                mac->opmode == NL80211_IFTYPE_ADHOC) {
 527                if (sta)
 528                        bw_40 = sta->ht_cap.cap &
 529                                IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 530        }
 531        seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 532        rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 533        /* reserve 8 byte for AMPDU early mode */
 534        if (rtlhal->earlymode_enable) {
 535                skb_push(skb, EM_HDR_LEN);
 536                memset(skb->data, 0, EM_HDR_LEN);
 537        }
 538        buf_len = skb->len;
 539        mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 540                                 PCI_DMA_TODEVICE);
 541        if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 542                RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 543                         "DMA mapping error");
 544                return;
 545        }
 546        CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_88e));
 547        if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 548                firstseg = true;
 549                lastseg = true;
 550        }
 551        if (firstseg) {
 552                if (rtlhal->earlymode_enable) {
 553                        SET_TX_DESC_PKT_OFFSET(pdesc, 1);
 554                        SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN +
 555                                           EM_HDR_LEN);
 556                        if (ptcb_desc->empkt_num) {
 557                                RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 558                                         "Insert 8 byte.pTcb->EMPktNum:%d\n",
 559                                          ptcb_desc->empkt_num);
 560                                _rtl88ee_insert_emcontent(ptcb_desc,
 561                                                          (u8 *)(skb->data));
 562                        }
 563                } else {
 564                        SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 565                }
 566
 567                ptcb_desc->use_driver_rate = true;
 568                SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
 569                if (ptcb_desc->hw_rate > DESC92C_RATEMCS0)
 570                        short_gi = (ptcb_desc->use_shortgi) ? 1 : 0;
 571                else
 572                        short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0;
 573
 574                SET_TX_DESC_DATA_SHORTGI(pdesc, short_gi);
 575
 576                if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 577                        SET_TX_DESC_AGG_ENABLE(pdesc, 1);
 578                        SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
 579                }
 580                SET_TX_DESC_SEQ(pdesc, seq_number);
 581                SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
 582                                                !ptcb_desc->cts_enable) ? 1 : 0));
 583                SET_TX_DESC_HW_RTS_ENABLE(pdesc, 0);
 584                SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
 585                SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
 586
 587                SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
 588                SET_TX_DESC_RTS_BW(pdesc, 0);
 589                SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc);
 590                SET_TX_DESC_RTS_SHORT(pdesc,
 591                        ((ptcb_desc->rts_rate <= DESC92C_RATE54M) ?
 592                        (ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
 593                        (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 594
 595                if (ptcb_desc->tx_enable_sw_calc_duration)
 596                        SET_TX_DESC_NAV_USE_HDR(pdesc, 1);
 597
 598                if (bw_40) {
 599                        if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
 600                                SET_TX_DESC_DATA_BW(pdesc, 1);
 601                                SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
 602                        } else {
 603                                SET_TX_DESC_DATA_BW(pdesc, 0);
 604                                SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 605                                                           mac->cur_40_prime_sc);
 606                        }
 607                } else {
 608                        SET_TX_DESC_DATA_BW(pdesc, 0);
 609                        SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 610                }
 611
 612                SET_TX_DESC_LINIP(pdesc, 0);
 613                SET_TX_DESC_PKT_SIZE(pdesc, (u16)skb_len);
 614                if (sta) {
 615                        u8 ampdu_density = sta->ht_cap.ampdu_density;
 616                        SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
 617                }
 618                if (info->control.hw_key) {
 619                        struct ieee80211_key_conf *keyconf;
 620
 621                        keyconf = info->control.hw_key;
 622                        switch (keyconf->cipher) {
 623                        case WLAN_CIPHER_SUITE_WEP40:
 624                        case WLAN_CIPHER_SUITE_WEP104:
 625                        case WLAN_CIPHER_SUITE_TKIP:
 626                                SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 627                                break;
 628                        case WLAN_CIPHER_SUITE_CCMP:
 629                                SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 630                                break;
 631                        default:
 632                                SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 633                                break;
 634
 635                        }
 636                }
 637
 638                SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 639                SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 640                SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
 641                SET_TX_DESC_DISABLE_FB(pdesc, ptcb_desc->disable_ratefallback ?
 642                                       1 : 0);
 643                SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
 644
 645                /*SET_TX_DESC_PWR_STATUS(pdesc, pwr_status);*/
 646                /* Set TxRate and RTSRate in TxDesc  */
 647                /* This prevent Tx initial rate of new-coming packets */
 648                /* from being overwritten by retried  packet rate.*/
 649                if (!ptcb_desc->use_driver_rate) {
 650                        /*SET_TX_DESC_RTS_RATE(pdesc, 0x08); */
 651                        /* SET_TX_DESC_TX_RATE(pdesc, 0x0b); */
 652                }
 653                if (ieee80211_is_data_qos(fc)) {
 654                        if (mac->rdg_en) {
 655                                RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 656                                        "Enable RDG function.\n");
 657                                SET_TX_DESC_RDG_ENABLE(pdesc, 1);
 658                                SET_TX_DESC_HTC(pdesc, 1);
 659                        }
 660                }
 661        }
 662
 663        SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 664        SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 665        SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)buf_len);
 666        SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 667        if (rtlpriv->dm.useramask) {
 668                SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index);
 669                SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 670        } else {
 671                SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index);
 672                SET_TX_DESC_MACID(pdesc, ptcb_desc->ratr_index);
 673        }
 674        if (ieee80211_is_data_qos(fc))
 675                SET_TX_DESC_QOS(pdesc, 1);
 676
 677        if (!ieee80211_is_data_qos(fc))
 678                SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 679        SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
 680        if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 681            is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
 682                SET_TX_DESC_BMC(pdesc, 1);
 683        }
 684
 685        rtl88e_dm_set_tx_ant_by_tx_info(hw, pdesc, ptcb_desc->mac_id);
 686        RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 687}
 688
 689void rtl88ee_tx_fill_cmddesc(struct ieee80211_hw *hw,
 690                             u8 *pdesc, bool firstseg,
 691                             bool lastseg, struct sk_buff *skb)
 692{
 693        struct rtl_priv *rtlpriv = rtl_priv(hw);
 694        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 695        u8 fw_queue = QSLT_BEACON;
 696
 697        dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 698                                            skb->data, skb->len,
 699                                            PCI_DMA_TODEVICE);
 700
 701        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 702        __le16 fc = hdr->frame_control;
 703
 704        if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 705                RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 706                         "DMA mapping error");
 707                return;
 708        }
 709        CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
 710
 711        if (firstseg)
 712                SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 713
 714        SET_TX_DESC_TX_RATE(pdesc, DESC92C_RATE1M);
 715
 716        SET_TX_DESC_SEQ(pdesc, 0);
 717
 718        SET_TX_DESC_LINIP(pdesc, 0);
 719
 720        SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 721
 722        SET_TX_DESC_FIRST_SEG(pdesc, 1);
 723        SET_TX_DESC_LAST_SEG(pdesc, 1);
 724
 725        SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 726
 727        SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 728
 729        SET_TX_DESC_RATE_ID(pdesc, 7);
 730        SET_TX_DESC_MACID(pdesc, 0);
 731
 732        SET_TX_DESC_OWN(pdesc, 1);
 733
 734        SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
 735
 736        SET_TX_DESC_FIRST_SEG(pdesc, 1);
 737        SET_TX_DESC_LAST_SEG(pdesc, 1);
 738
 739        SET_TX_DESC_OFFSET(pdesc, 0x20);
 740
 741        SET_TX_DESC_USE_RATE(pdesc, 1);
 742
 743        if (!ieee80211_is_data_qos(fc))
 744                SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 745
 746        RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 747                      "H2C Tx Cmd Content\n",
 748                      pdesc, TX_DESC_SIZE);
 749}
 750
 751void rtl88ee_set_desc(struct ieee80211_hw *hw, u8 *pdesc,
 752                      bool istx, u8 desc_name, u8 *val)
 753{
 754        if (istx == true) {
 755                switch (desc_name) {
 756                case HW_DESC_OWN:
 757                        SET_TX_DESC_OWN(pdesc, 1);
 758                        break;
 759                case HW_DESC_TX_NEXTDESC_ADDR:
 760                        SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *)val);
 761                        break;
 762                default:
 763                        RT_ASSERT(false, "ERR txdesc :%d not process\n",
 764                                  desc_name);
 765                        break;
 766                }
 767        } else {
 768                switch (desc_name) {
 769                case HW_DESC_RXOWN:
 770                        SET_RX_DESC_OWN(pdesc, 1);
 771                        break;
 772                case HW_DESC_RXBUFF_ADDR:
 773                        SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *)val);
 774                        break;
 775                case HW_DESC_RXPKT_LEN:
 776                        SET_RX_DESC_PKT_LEN(pdesc, *(u32 *)val);
 777                        break;
 778                case HW_DESC_RXERO:
 779                        SET_RX_DESC_EOR(pdesc, 1);
 780                        break;
 781                default:
 782                        RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 783                                  desc_name);
 784                        break;
 785                }
 786        }
 787}
 788
 789u32 rtl88ee_get_desc(u8 *pdesc, bool istx, u8 desc_name)
 790{
 791        u32 ret = 0;
 792
 793        if (istx == true) {
 794                switch (desc_name) {
 795                case HW_DESC_OWN:
 796                        ret = GET_TX_DESC_OWN(pdesc);
 797                        break;
 798                case HW_DESC_TXBUFF_ADDR:
 799                        ret = GET_TX_DESC_TX_BUFFER_ADDRESS(pdesc);
 800                        break;
 801                default:
 802                        RT_ASSERT(false, "ERR txdesc :%d not process\n",
 803                                  desc_name);
 804                        break;
 805                }
 806        } else {
 807                switch (desc_name) {
 808                case HW_DESC_OWN:
 809                        ret = GET_RX_DESC_OWN(pdesc);
 810                        break;
 811                case HW_DESC_RXPKT_LEN:
 812                        ret = GET_RX_DESC_PKT_LEN(pdesc);
 813                        break;
 814                case HW_DESC_RXBUFF_ADDR:
 815                        ret = GET_RX_DESC_BUFF_ADDR(pdesc);
 816                        break;
 817                default:
 818                        RT_ASSERT(false, "ERR rxdesc :%d not process\n",
 819                                  desc_name);
 820                        break;
 821                }
 822        }
 823        return ret;
 824}
 825
 826bool rtl88ee_is_tx_desc_closed(struct ieee80211_hw *hw, u8 hw_queue, u16 index)
 827{
 828        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 829        struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 830        u8 *entry = (u8 *)(&ring->desc[ring->idx]);
 831        u8 own = (u8)rtl88ee_get_desc(entry, true, HW_DESC_OWN);
 832
 833        /*beacon packet will only use the first
 834         *descriptor defautly,and the own may not
 835         *be cleared by the hardware
 836         */
 837        if (own)
 838                return false;
 839        return true;
 840}
 841
 842void rtl88ee_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 843{
 844        struct rtl_priv *rtlpriv = rtl_priv(hw);
 845        if (hw_queue == BEACON_QUEUE) {
 846                rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
 847        } else {
 848                rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
 849                               BIT(0) << (hw_queue));
 850        }
 851}
 852
 853u32 rtl88ee_rx_command_packet(struct ieee80211_hw *hw,
 854                              const struct rtl_stats *status,
 855                              struct sk_buff *skb)
 856{
 857        return 0;
 858}
 859