linux/drivers/net/wireless/rtlwifi/rtl8188ee/trx.c
<<
>>
Prefs
   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 * 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 "trx.h"
  38#include "led.h"
  39#include "dm.h"
  40
  41static u8 _rtl88ee_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_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
  50        return skb->priority;
  51}
  52
  53static void _rtl88ee_query_rxphystatus(struct ieee80211_hw *hw,
  54                        struct rtl_stats *pstatus, u8 *pdesc,
  55                        struct rx_fwinfo_88e *p_drvinfo,
  56                        bool bpacket_match_bssid,
  57                        bool bpacket_toself, bool packet_beacon)
  58{
  59        struct rtl_priv *rtlpriv = rtl_priv(hw);
  60        struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
  61        struct phy_sts_cck_8192s_t *cck_buf;
  62        struct phy_status_rpt *phystrpt = (struct phy_status_rpt *)p_drvinfo;
  63        struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
  64        char rx_pwr_all = 0, rx_pwr[4];
  65        u8 rf_rx_num = 0, evm, pwdb_all;
  66        u8 i, max_spatial_stream;
  67        u32 rssi, total_rssi = 0;
  68        bool is_cck = pstatus->is_cck;
  69        u8 lan_idx, vga_idx;
  70
  71        /* Record it for next packet processing */
  72        pstatus->packet_matchbssid = bpacket_match_bssid;
  73        pstatus->packet_toself = bpacket_toself;
  74        pstatus->packet_beacon = packet_beacon;
  75        pstatus->rx_mimo_sig_qual[0] = -1;
  76        pstatus->rx_mimo_sig_qual[1] = -1;
  77
  78        if (is_cck) {
  79                u8 cck_hipwr;
  80                u8 cck_agc_rpt;
  81                /* CCK Driver info Structure is not the same as OFDM packet. */
  82                cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
  83                cck_agc_rpt = cck_buf->cck_agc_rpt;
  84
  85                /* (1)Hardware does not provide RSSI for CCK
  86                 * (2)PWDB, Average PWDB cacluated by
  87                 * hardware (for rate adaptive)
  88                 */
  89                if (ppsc->rfpwr_state == ERFON)
  90                        cck_hipwr = rtl_get_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2,
  91                                                  BIT(9));
  92                else
  93                        cck_hipwr = false;
  94
  95                lan_idx = ((cck_agc_rpt & 0xE0) >> 5);
  96                vga_idx = (cck_agc_rpt & 0x1f);
  97                switch (lan_idx) {
  98                case 7:
  99                        if (vga_idx <= 27)
 100                                rx_pwr_all = -100 + 2 * (27 - vga_idx);
 101                        else
 102                                rx_pwr_all = -100;
 103                        break;
 104                case 6:
 105                        rx_pwr_all = -48 + 2 * (2 - vga_idx); /*VGA_idx = 2~0*/
 106                        break;
 107                case 5:
 108                        rx_pwr_all = -42 + 2 * (7 - vga_idx); /*VGA_idx = 7~5*/
 109                        break;
 110                case 4:
 111                        rx_pwr_all = -36 + 2 * (7 - vga_idx); /*VGA_idx = 7~4*/
 112                        break;
 113                case 3:
 114                        rx_pwr_all = -24 + 2 * (7 - vga_idx); /*VGA_idx = 7~0*/
 115                        break;
 116                case 2:
 117                        if (cck_hipwr)
 118                                rx_pwr_all = -12 + 2 * (5 - vga_idx);
 119                        else
 120                                rx_pwr_all = -6 + 2 * (5 - vga_idx);
 121                        break;
 122                case 1:
 123                        rx_pwr_all = 8 - 2 * vga_idx;
 124                        break;
 125                case 0:
 126                        rx_pwr_all = 14 - 2 * vga_idx;
 127                        break;
 128                default:
 129                        break;
 130                }
 131                rx_pwr_all += 6;
 132                pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 133                /* CCK gain is smaller than OFDM/MCS gain,
 134                 * so we add gain diff by experiences,
 135                 * the val is 6
 136                 */
 137                pwdb_all += 6;
 138                if (pwdb_all > 100)
 139                        pwdb_all = 100;
 140                /* modify the offset to make the same
 141                 * gain index with OFDM.
 142                 */
 143                if (pwdb_all > 34 && pwdb_all <= 42)
 144                        pwdb_all -= 2;
 145                else if (pwdb_all > 26 && pwdb_all <= 34)
 146                        pwdb_all -= 6;
 147                else if (pwdb_all > 14 && pwdb_all <= 26)
 148                        pwdb_all -= 8;
 149                else if (pwdb_all > 4 && pwdb_all <= 14)
 150                        pwdb_all -= 4;
 151                if (cck_hipwr == false) {
 152                        if (pwdb_all >= 80)
 153                                pwdb_all = ((pwdb_all - 80)<<1) +
 154                                           ((pwdb_all - 80)>>1) + 80;
 155                        else if ((pwdb_all <= 78) && (pwdb_all >= 20))
 156                                pwdb_all += 3;
 157                        if (pwdb_all > 100)
 158                                pwdb_all = 100;
 159                }
 160
 161                pstatus->rx_pwdb_all = pwdb_all;
 162                pstatus->recvsignalpower = rx_pwr_all;
 163
 164                /* (3) Get Signal Quality (EVM) */
 165                if (bpacket_match_bssid) {
 166                        u8 sq;
 167
 168                        if (pstatus->rx_pwdb_all > 40) {
 169                                sq = 100;
 170                        } else {
 171                                sq = cck_buf->sq_rpt;
 172                                if (sq > 64)
 173                                        sq = 0;
 174                                else if (sq < 20)
 175                                        sq = 100;
 176                                else
 177                                        sq = ((64 - sq) * 100) / 44;
 178                        }
 179
 180                        pstatus->signalquality = sq;
 181                        pstatus->rx_mimo_sig_qual[0] = sq;
 182                        pstatus->rx_mimo_sig_qual[1] = -1;
 183                }
 184        } else {
 185                rtlpriv->dm.rfpath_rxenable[0] =
 186                    rtlpriv->dm.rfpath_rxenable[1] = true;
 187
 188                /* (1)Get RSSI for HT rate */
 189                for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
 190                        /* we will judge RF RX path now. */
 191                        if (rtlpriv->dm.rfpath_rxenable[i])
 192                                rf_rx_num++;
 193
 194                        rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2)-110;
 195
 196                        /* Translate DBM to percentage. */
 197                        rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
 198                        total_rssi += rssi;
 199
 200                        /* Get Rx snr value in DB */
 201                        rtlpriv->stats.rx_snr_db[i] = p_drvinfo->rxsnr[i] / 2;
 202
 203                        /* Record Signal Strength for next packet */
 204                        if (bpacket_match_bssid)
 205                                pstatus->rx_mimo_signalstrength[i] = (u8) rssi;
 206                }
 207
 208                /* (2)PWDB, Average PWDB cacluated by
 209                 * hardware (for rate adaptive)
 210                 */
 211                rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 212
 213                pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 214                pstatus->rx_pwdb_all = pwdb_all;
 215                pstatus->rxpower = rx_pwr_all;
 216                pstatus->recvsignalpower = rx_pwr_all;
 217
 218                /* (3)EVM of HT rate */
 219                if (pstatus->is_ht && pstatus->rate >= DESC92C_RATEMCS8 &&
 220                    pstatus->rate <= DESC92C_RATEMCS15)
 221                        max_spatial_stream = 2;
 222                else
 223                        max_spatial_stream = 1;
 224
 225                for (i = 0; i < max_spatial_stream; i++) {
 226                        evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 227
 228                        if (bpacket_match_bssid) {
 229                                /* Fill value in RFD, Get the first
 230                                 * spatial stream only
 231                                 */
 232                                if (i == 0)
 233                                        pstatus->signalquality = evm & 0xff;
 234                                pstatus->rx_mimo_sig_qual[i] = evm & 0xff;
 235                        }
 236                }
 237        }
 238
 239        /* UI BSS List signal strength(in percentage),
 240         * make it good looking, from 0~100.
 241         */
 242        if (is_cck)
 243                pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 244                                          pwdb_all));
 245        else if (rf_rx_num != 0)
 246                pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
 247                                          total_rssi /= rf_rx_num));
 248        /*HW antenna diversity*/
 249        rtldm->fat_table.antsel_rx_keep_0 = phystrpt->ant_sel;
 250        rtldm->fat_table.antsel_rx_keep_1 = phystrpt->ant_sel_b;
 251        rtldm->fat_table.antsel_rx_keep_2 = phystrpt->antsel_rx_keep_2;
 252}
 253
 254static void _rtl88ee_smart_antenna(struct ieee80211_hw *hw,
 255        struct rtl_stats *pstatus)
 256{
 257        struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
 258        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 259        u8 ant_mux;
 260        struct fast_ant_training *pfat = &(rtldm->fat_table);
 261
 262        if (rtlefuse->antenna_div_type == CG_TRX_SMART_ANTDIV) {
 263                if (pfat->fat_state == FAT_TRAINING_STATE) {
 264                        if (pstatus->packet_toself) {
 265                                ant_mux = (pfat->antsel_rx_keep_2 << 2) |
 266                                                (pfat->antsel_rx_keep_1 << 1) |
 267                                                 pfat->antsel_rx_keep_0;
 268                                pfat->ant_sum[ant_mux] += pstatus->rx_pwdb_all;
 269                                pfat->ant_cnt[ant_mux]++;
 270                        }
 271                }
 272        } else if ((rtlefuse->antenna_div_type == CG_TRX_HW_ANTDIV) ||
 273                   (rtlefuse->antenna_div_type == CGCS_RX_HW_ANTDIV)) {
 274                if (pstatus->packet_toself || pstatus->packet_matchbssid) {
 275                        ant_mux = (pfat->antsel_rx_keep_2 << 2) |
 276                                  (pfat->antsel_rx_keep_1 << 1) |
 277                                   pfat->antsel_rx_keep_0;
 278                        rtl88e_dm_ant_sel_statistics(hw, ant_mux, 0,
 279                                                     pstatus->rx_pwdb_all);
 280                }
 281        }
 282}
 283
 284static void _rtl88ee_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 285                struct sk_buff *skb, struct rtl_stats *pstatus,
 286                u8 *pdesc, struct rx_fwinfo_88e *p_drvinfo)
 287{
 288        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 289        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 290        struct ieee80211_hdr *hdr;
 291        u8 *tmp_buf;
 292        u8 *praddr;
 293        u8 *psaddr;
 294        __le16 fc;
 295        u16 type, ufc;
 296        bool match_bssid, packet_toself, packet_beacon, addr;
 297
 298        tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift;
 299
 300        hdr = (struct ieee80211_hdr *)tmp_buf;
 301        fc = hdr->frame_control;
 302        ufc = le16_to_cpu(fc);
 303        type = WLAN_FC_GET_TYPE(fc);
 304        praddr = hdr->addr1;
 305        psaddr = ieee80211_get_SA(hdr);
 306        memcpy(pstatus->psaddr, psaddr, ETH_ALEN);
 307
 308        addr = ether_addr_equal(mac->bssid,
 309                                (ufc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
 310                                (ufc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
 311                                hdr->addr3);
 312        match_bssid = ((IEEE80211_FTYPE_CTL != type) && (!pstatus->hwerror) &&
 313                       (!pstatus->crc) && (!pstatus->icv)) && addr;
 314
 315        addr = ether_addr_equal(praddr, rtlefuse->dev_addr);
 316        packet_toself = match_bssid && addr;
 317
 318        if (ieee80211_is_beacon(fc))
 319                packet_beacon = true;
 320
 321        _rtl88ee_query_rxphystatus(hw, pstatus, pdesc, p_drvinfo,
 322                                   match_bssid, packet_toself, packet_beacon);
 323        _rtl88ee_smart_antenna(hw, pstatus);
 324        rtl_process_phyinfo(hw, tmp_buf, pstatus);
 325}
 326
 327static void insert_em(struct rtl_tcb_desc *ptcb_desc, u8 *virtualaddress)
 328{
 329        u32 dwtmp = 0;
 330
 331        memset(virtualaddress, 0, 8);
 332
 333        SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
 334        if (ptcb_desc->empkt_num == 1) {
 335                dwtmp = ptcb_desc->empkt_len[0];
 336        } else {
 337                dwtmp = ptcb_desc->empkt_len[0];
 338                dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4;
 339                dwtmp += ptcb_desc->empkt_len[1];
 340        }
 341        SET_EARLYMODE_LEN0(virtualaddress, dwtmp);
 342
 343        if (ptcb_desc->empkt_num <= 3) {
 344                dwtmp = ptcb_desc->empkt_len[2];
 345        } else {
 346                dwtmp = ptcb_desc->empkt_len[2];
 347                dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4;
 348                dwtmp += ptcb_desc->empkt_len[3];
 349        }
 350        SET_EARLYMODE_LEN1(virtualaddress, dwtmp);
 351        if (ptcb_desc->empkt_num <= 5) {
 352                dwtmp = ptcb_desc->empkt_len[4];
 353        } else {
 354                dwtmp = ptcb_desc->empkt_len[4];
 355                dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4;
 356                dwtmp += ptcb_desc->empkt_len[5];
 357        }
 358        SET_EARLYMODE_LEN2_1(virtualaddress, dwtmp & 0xF);
 359        SET_EARLYMODE_LEN2_2(virtualaddress, dwtmp >> 4);
 360        if (ptcb_desc->empkt_num <= 7) {
 361                dwtmp = ptcb_desc->empkt_len[6];
 362        } else {
 363                dwtmp = ptcb_desc->empkt_len[6];
 364                dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4;
 365                dwtmp += ptcb_desc->empkt_len[7];
 366        }
 367        SET_EARLYMODE_LEN3(virtualaddress, dwtmp);
 368        if (ptcb_desc->empkt_num <= 9) {
 369                dwtmp = ptcb_desc->empkt_len[8];
 370        } else {
 371                dwtmp = ptcb_desc->empkt_len[8];
 372                dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4;
 373                dwtmp += ptcb_desc->empkt_len[9];
 374        }
 375        SET_EARLYMODE_LEN4(virtualaddress, dwtmp);
 376}
 377
 378bool rtl88ee_rx_query_desc(struct ieee80211_hw *hw,
 379                           struct rtl_stats *status,
 380                           struct ieee80211_rx_status *rx_status,
 381                           u8 *pdesc, struct sk_buff *skb)
 382{
 383        struct rtl_priv *rtlpriv = rtl_priv(hw);
 384        struct rx_fwinfo_88e *p_drvinfo;
 385        struct ieee80211_hdr *hdr;
 386
 387        u32 phystatus = GET_RX_DESC_PHYST(pdesc);
 388        status->packet_report_type = (u8)GET_RX_STATUS_DESC_RPT_SEL(pdesc);
 389        if (status->packet_report_type == TX_REPORT2)
 390                status->length = (u16) GET_RX_RPT2_DESC_PKT_LEN(pdesc);
 391        else
 392                status->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
 393        status->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
 394                                       RX_DRV_INFO_SIZE_UNIT;
 395        status->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
 396        status->icv = (u16) GET_RX_DESC_ICV(pdesc);
 397        status->crc = (u16) GET_RX_DESC_CRC32(pdesc);
 398        status->hwerror = (status->crc | status->icv);
 399        status->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 400        status->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
 401        status->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
 402        status->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
 403        status->isfirst_ampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1) &&
 404                                        (GET_RX_DESC_FAGGR(pdesc) == 1));
 405        if (status->packet_report_type == NORMAL_RX)
 406                status->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 407        status->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
 408        status->is_ht = (bool)GET_RX_DESC_RXHT(pdesc);
 409
 410        status->is_cck = RTL8188_RX_HAL_IS_CCK_RATE(status->rate);
 411
 412        status->macid = GET_RX_DESC_MACID(pdesc);
 413        if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc))
 414                status->wake_match = BIT(2);
 415        else if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc))
 416                status->wake_match = BIT(1);
 417        else if (GET_RX_STATUS_DESC_UNICAST_MATCH(pdesc))
 418                status->wake_match = BIT(0);
 419        else
 420                status->wake_match = 0;
 421        if (status->wake_match)
 422                RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
 423                         "Get Wakeup Packet!! WakeMatch =%d\n",
 424                         status->wake_match);
 425        rx_status->freq = hw->conf.chandef.chan->center_freq;
 426        rx_status->band = hw->conf.chandef.chan->band;
 427
 428        if (status->crc)
 429                rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 430
 431        if (status->rx_is40Mhzpacket)
 432                rx_status->flag |= RX_FLAG_40MHZ;
 433
 434        if (status->is_ht)
 435                rx_status->flag |= RX_FLAG_HT;
 436
 437        rx_status->flag |= RX_FLAG_MACTIME_START;
 438
 439        /* hw will set status->decrypted true, if it finds the
 440         * frame is open data frame or mgmt frame.
 441         * So hw will not decryption robust managment frame
 442         * for IEEE80211w but still set status->decrypted
 443         * true, so here we should set it back to undecrypted
 444         * for IEEE80211w frame, and mac80211 sw will help
 445         * to decrypt it
 446         */
 447        if (status->decrypted) {
 448                hdr = (struct ieee80211_hdr *)(skb->data +
 449                       status->rx_drvinfo_size + status->rx_bufshift);
 450
 451                if (!hdr) {
 452                        /* During testing, hdr was NULL */
 453                        return false;
 454                }
 455                if ((ieee80211_is_robust_mgmt_frame(hdr)) &&
 456                    (ieee80211_has_protected(hdr->frame_control)))
 457                        rx_status->flag &= ~RX_FLAG_DECRYPTED;
 458                else
 459                        rx_status->flag |= RX_FLAG_DECRYPTED;
 460        }
 461
 462        /* rate_idx: index of data rate into band's
 463         * supported rates or MCS index if HT rates
 464         * are use (RX_FLAG_HT)
 465         * Notice: this is diff with windows define
 466         */
 467        rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht,
 468                                                   status->rate, false);
 469
 470        rx_status->mactime = status->timestamp_low;
 471        if (phystatus == true) {
 472                p_drvinfo = (struct rx_fwinfo_88e *)(skb->data +
 473                                                     status->rx_bufshift);
 474
 475                _rtl88ee_translate_rx_signal_stuff(hw, skb, status, pdesc,
 476                                                   p_drvinfo);
 477        }
 478
 479        /*rx_status->qual = status->signal; */
 480        rx_status->signal = status->recvsignalpower + 10;
 481        if (status->packet_report_type == TX_REPORT2) {
 482                status->macid_valid_entry[0] =
 483                         GET_RX_RPT2_DESC_MACID_VALID_1(pdesc);
 484                status->macid_valid_entry[1] =
 485                         GET_RX_RPT2_DESC_MACID_VALID_2(pdesc);
 486        }
 487        return true;
 488}
 489
 490void rtl88ee_tx_fill_desc(struct ieee80211_hw *hw,
 491                          struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 492                          struct ieee80211_tx_info *info,
 493                          struct ieee80211_sta *sta,
 494                          struct sk_buff *skb,
 495                          u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 496{
 497        struct rtl_priv *rtlpriv = rtl_priv(hw);
 498        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 499        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 500        struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 501        u8 *pdesc = (u8 *)pdesc_tx;
 502        u16 seq_number;
 503        __le16 fc = hdr->frame_control;
 504        unsigned int buf_len = 0;
 505        unsigned int skb_len = skb->len;
 506        u8 fw_qsel = _rtl88ee_map_hwqueue_to_fwqueue(skb, hw_queue);
 507        bool firstseg = ((hdr->seq_ctrl &
 508                            cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
 509        bool lastseg = ((hdr->frame_control &
 510                           cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
 511        dma_addr_t mapping;
 512        u8 bw_40 = 0;
 513        u8 short_gi = 0;
 514
 515        if (mac->opmode == NL80211_IFTYPE_STATION) {
 516                bw_40 = mac->bw_40;
 517        } else if (mac->opmode == NL80211_IFTYPE_AP ||
 518                mac->opmode == NL80211_IFTYPE_ADHOC) {
 519                if (sta)
 520                        bw_40 = sta->ht_cap.cap &
 521                                IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 522        }
 523        seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 524        rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
 525        /* reserve 8 byte for AMPDU early mode */
 526        if (rtlhal->earlymode_enable) {
 527                skb_push(skb, EM_HDR_LEN);
 528                memset(skb->data, 0, EM_HDR_LEN);
 529        }
 530        buf_len = skb->len;
 531        mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
 532                                 PCI_DMA_TODEVICE);
 533        if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 534                RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 535                         "DMA mapping error");
 536                return;
 537        }
 538        CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_88e));
 539        if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
 540                firstseg = true;
 541                lastseg = true;
 542        }
 543        if (firstseg) {
 544                if (rtlhal->earlymode_enable) {
 545                        SET_TX_DESC_PKT_OFFSET(pdesc, 1);
 546                        SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN +
 547                                           EM_HDR_LEN);
 548                        if (ptcb_desc->empkt_num) {
 549                                RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 550                                         "Insert 8 byte.pTcb->EMPktNum:%d\n",
 551                                         ptcb_desc->empkt_num);
 552                                insert_em(ptcb_desc, (u8 *)(skb->data));
 553                        }
 554                } else {
 555                        SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 556                }
 557
 558                ptcb_desc->use_driver_rate = true;
 559                SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
 560                if (ptcb_desc->hw_rate > DESC92C_RATEMCS0)
 561                        short_gi = (ptcb_desc->use_shortgi) ? 1 : 0;
 562                else
 563                        short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0;
 564                SET_TX_DESC_DATA_SHORTGI(pdesc, short_gi);
 565
 566                if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 567                        SET_TX_DESC_AGG_ENABLE(pdesc, 1);
 568                        SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
 569                }
 570                SET_TX_DESC_SEQ(pdesc, seq_number);
 571                SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
 572                                              !ptcb_desc->cts_enable) ? 1 : 0));
 573                SET_TX_DESC_HW_RTS_ENABLE(pdesc, 0);
 574                SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
 575                SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
 576
 577                SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
 578                SET_TX_DESC_RTS_BW(pdesc, 0);
 579                SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc);
 580                SET_TX_DESC_RTS_SHORT(pdesc,
 581                        ((ptcb_desc->rts_rate <= DESC92C_RATE54M) ?
 582                        (ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
 583                        (ptcb_desc->rts_use_shortgi ? 1 : 0)));
 584
 585                if (ptcb_desc->btx_enable_sw_calc_duration)
 586                        SET_TX_DESC_NAV_USE_HDR(pdesc, 1);
 587
 588                if (bw_40) {
 589                        if (ptcb_desc->packet_bw) {
 590                                SET_TX_DESC_DATA_BW(pdesc, 1);
 591                                SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
 592                        } else {
 593                                SET_TX_DESC_DATA_BW(pdesc, 0);
 594                                SET_TX_DESC_TX_SUB_CARRIER(pdesc,
 595                                                   mac->cur_40_prime_sc);
 596                        }
 597                } else {
 598                        SET_TX_DESC_DATA_BW(pdesc, 0);
 599                        SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
 600                }
 601
 602                SET_TX_DESC_LINIP(pdesc, 0);
 603                SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb_len);
 604                if (sta) {
 605                        u8 ampdu_density = sta->ht_cap.ampdu_density;
 606                        SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
 607                }
 608                if (info->control.hw_key) {
 609                        struct ieee80211_key_conf *keyconf;
 610                        keyconf = info->control.hw_key;
 611                        switch (keyconf->cipher) {
 612                        case WLAN_CIPHER_SUITE_WEP40:
 613                        case WLAN_CIPHER_SUITE_WEP104:
 614                        case WLAN_CIPHER_SUITE_TKIP:
 615                                SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
 616                                break;
 617                        case WLAN_CIPHER_SUITE_CCMP:
 618                                SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
 619                                break;
 620                        default:
 621                                SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
 622                                break;
 623                        }
 624                }
 625
 626                SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
 627                SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
 628                SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
 629                SET_TX_DESC_DISABLE_FB(pdesc, ptcb_desc->disable_ratefallback ?
 630                                       1 : 0);
 631                SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
 632
 633                /* Set TxRate and RTSRate in TxDesc  */
 634                /* This prevent Tx initial rate of new-coming packets */
 635                /* from being overwritten by retried  packet rate.*/
 636                if (!ptcb_desc->use_driver_rate) {
 637                        /*SET_TX_DESC_RTS_RATE(pdesc, 0x08); */
 638                        /* SET_TX_DESC_TX_RATE(pdesc, 0x0b); */
 639                }
 640                if (ieee80211_is_data_qos(fc)) {
 641                        if (mac->rdg_en) {
 642                                RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 643                                         "Enable RDG function.\n");
 644                                SET_TX_DESC_RDG_ENABLE(pdesc, 1);
 645                                SET_TX_DESC_HTC(pdesc, 1);
 646                        }
 647                }
 648        }
 649
 650        SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
 651        SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
 652        SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) buf_len);
 653        SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 654        if (rtlpriv->dm.useramask) {
 655                SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index);
 656                SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
 657        } else {
 658                SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index);
 659                SET_TX_DESC_MACID(pdesc, ptcb_desc->ratr_index);
 660        }
 661        if (ieee80211_is_data_qos(fc))
 662                SET_TX_DESC_QOS(pdesc, 1);
 663
 664        if (!ieee80211_is_data_qos(fc))
 665                SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 666        SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
 667        if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 668            is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
 669                SET_TX_DESC_BMC(pdesc, 1);
 670
 671        rtl88e_dm_set_tx_ant_by_tx_info(hw, pdesc, ptcb_desc->mac_id);
 672        RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 673}
 674
 675void rtl88ee_tx_fill_cmddesc(struct ieee80211_hw *hw,
 676                             u8 *pdesc, bool firstseg,
 677                             bool lastseg, struct sk_buff *skb)
 678{
 679        struct rtl_priv *rtlpriv = rtl_priv(hw);
 680        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 681        u8 fw_queue = QSLT_BEACON;
 682
 683        dma_addr_t mapping = pci_map_single(rtlpci->pdev,
 684                                            skb->data, skb->len,
 685                                            PCI_DMA_TODEVICE);
 686
 687        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 688        __le16 fc = hdr->frame_control;
 689
 690        if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
 691                RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 692                         "DMA mapping error");
 693                return;
 694        }
 695        CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
 696
 697        if (firstseg)
 698                SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
 699
 700        SET_TX_DESC_TX_RATE(pdesc, DESC92C_RATE1M);
 701
 702        SET_TX_DESC_SEQ(pdesc, 0);
 703
 704        SET_TX_DESC_LINIP(pdesc, 0);
 705
 706        SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 707
 708        SET_TX_DESC_FIRST_SEG(pdesc, 1);
 709        SET_TX_DESC_LAST_SEG(pdesc, 1);
 710
 711        SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
 712
 713        SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 714
 715        SET_TX_DESC_RATE_ID(pdesc, 7);
 716        SET_TX_DESC_MACID(pdesc, 0);
 717
 718        SET_TX_DESC_OWN(pdesc, 1);
 719
 720        SET_TX_DESC_PKT_SIZE((u8 *)pdesc, (u16)(skb->len));
 721
 722        SET_TX_DESC_FIRST_SEG(pdesc, 1);
 723        SET_TX_DESC_LAST_SEG(pdesc, 1);
 724
 725        SET_TX_DESC_OFFSET(pdesc, 0x20);
 726
 727        SET_TX_DESC_USE_RATE(pdesc, 1);
 728
 729        if (!ieee80211_is_data_qos(fc))
 730                SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 731
 732        RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
 733                      "H2C Tx Cmd Content\n",
 734                      pdesc, TX_DESC_SIZE);
 735}
 736
 737void rtl88ee_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
 738{
 739        if (istx == true) {
 740                switch (desc_name) {
 741                case HW_DESC_OWN:
 742                        SET_TX_DESC_OWN(pdesc, 1);
 743                        break;
 744                case HW_DESC_TX_NEXTDESC_ADDR:
 745                        SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *)val);
 746                        break;
 747                default:
 748                        RT_ASSERT(false, "ERR txdesc :%d not processed\n",
 749                                  desc_name);
 750                        break;
 751                }
 752        } else {
 753                switch (desc_name) {
 754                case HW_DESC_RXOWN:
 755                        SET_RX_DESC_OWN(pdesc, 1);
 756                        break;
 757                case HW_DESC_RXBUFF_ADDR:
 758                        SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *)val);
 759                        break;
 760                case HW_DESC_RXPKT_LEN:
 761                        SET_RX_DESC_PKT_LEN(pdesc, *(u32 *)val);
 762                        break;
 763                case HW_DESC_RXERO:
 764                        SET_RX_DESC_EOR(pdesc, 1);
 765                        break;
 766                default:
 767                        RT_ASSERT(false, "ERR rxdesc :%d not processed\n",
 768                                  desc_name);
 769                        break;
 770                }
 771        }
 772}
 773
 774u32 rtl88ee_get_desc(u8 *pdesc, bool istx, u8 desc_name)
 775{
 776        u32 ret = 0;
 777
 778        if (istx == true) {
 779                switch (desc_name) {
 780                case HW_DESC_OWN:
 781                        ret = GET_TX_DESC_OWN(pdesc);
 782                        break;
 783                case HW_DESC_TXBUFF_ADDR:
 784                        ret = GET_TX_DESC_TX_BUFFER_ADDRESS(pdesc);
 785                        break;
 786                default:
 787                        RT_ASSERT(false, "ERR txdesc :%d not processed\n",
 788                                  desc_name);
 789                        break;
 790                }
 791        } else {
 792                switch (desc_name) {
 793                case HW_DESC_OWN:
 794                        ret = GET_RX_DESC_OWN(pdesc);
 795                        break;
 796                case HW_DESC_RXPKT_LEN:
 797                        ret = GET_RX_DESC_PKT_LEN(pdesc);
 798                        break;
 799                default:
 800                        RT_ASSERT(false, "ERR rxdesc :%d not processed\n",
 801                                  desc_name);
 802                        break;
 803                }
 804        }
 805        return ret;
 806}
 807
 808void rtl88ee_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 809{
 810        struct rtl_priv *rtlpriv = rtl_priv(hw);
 811        if (hw_queue == BEACON_QUEUE) {
 812                rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
 813        } else {
 814                rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
 815                               BIT(0) << (hw_queue));
 816        }
 817}
 818