linux/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c
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   1/******************************************************************************
   2 *
   3 * Copyright(c) 2009-2012  Realtek Corporation. All rights reserved.
   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 "../usb.h"
  32#include "../ps.h"
  33#include "../base.h"
  34#include "reg.h"
  35#include "def.h"
  36#include "phy.h"
  37#include "rf.h"
  38#include "dm.h"
  39#include "mac.h"
  40#include "trx.h"
  41#include "../rtl8192c/fw_common.h"
  42
  43static int _ConfigVerTOutEP(struct ieee80211_hw *hw)
  44{
  45        u8 ep_cfg, txqsele;
  46        u8 ep_nums = 0;
  47
  48        struct rtl_priv *rtlpriv = rtl_priv(hw);
  49        struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
  50        struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
  51
  52        rtlusb->out_queue_sel = 0;
  53        ep_cfg = rtl_read_byte(rtlpriv, REG_TEST_SIE_OPTIONAL);
  54        ep_cfg = (ep_cfg & USB_TEST_EP_MASK) >> USB_TEST_EP_SHIFT;
  55        switch (ep_cfg) {
  56        case 0:         /* 2 bulk OUT, 1 bulk IN */
  57        case 3:
  58                rtlusb->out_queue_sel  = TX_SELE_HQ | TX_SELE_LQ;
  59                ep_nums = 2;
  60                break;
  61        case 1: /* 1 bulk IN/OUT => map all endpoint to Low queue */
  62        case 2: /* 1 bulk IN, 1 bulk OUT => map all endpoint to High queue */
  63                txqsele = rtl_read_byte(rtlpriv, REG_TEST_USB_TXQS);
  64                if (txqsele & 0x0F) /* /map all endpoint to High queue */
  65                        rtlusb->out_queue_sel =  TX_SELE_HQ;
  66                else if (txqsele&0xF0) /* map all endpoint to Low queue */
  67                        rtlusb->out_queue_sel =  TX_SELE_LQ;
  68                ep_nums = 1;
  69                break;
  70        default:
  71                break;
  72        }
  73        return (rtlusb->out_ep_nums == ep_nums) ? 0 : -EINVAL;
  74}
  75
  76static int _ConfigVerNOutEP(struct ieee80211_hw *hw)
  77{
  78        u8 ep_cfg;
  79        u8 ep_nums = 0;
  80
  81        struct rtl_priv *rtlpriv = rtl_priv(hw);
  82        struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
  83        struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
  84
  85        rtlusb->out_queue_sel = 0;
  86        /* Normal and High queue */
  87        ep_cfg =  rtl_read_byte(rtlpriv, (REG_NORMAL_SIE_EP + 1));
  88        if (ep_cfg & USB_NORMAL_SIE_EP_MASK) {
  89                rtlusb->out_queue_sel |= TX_SELE_HQ;
  90                ep_nums++;
  91        }
  92        if ((ep_cfg >> USB_NORMAL_SIE_EP_SHIFT) & USB_NORMAL_SIE_EP_MASK) {
  93                rtlusb->out_queue_sel |= TX_SELE_NQ;
  94                ep_nums++;
  95        }
  96        /* Low queue */
  97        ep_cfg =  rtl_read_byte(rtlpriv, (REG_NORMAL_SIE_EP + 2));
  98        if (ep_cfg & USB_NORMAL_SIE_EP_MASK) {
  99                rtlusb->out_queue_sel |= TX_SELE_LQ;
 100                ep_nums++;
 101        }
 102        return (rtlusb->out_ep_nums == ep_nums) ? 0 : -EINVAL;
 103}
 104
 105static void _TwoOutEpMapping(struct ieee80211_hw *hw, bool bIsChipB,
 106                             bool  bwificfg, struct rtl_ep_map *ep_map)
 107{
 108        struct rtl_priv *rtlpriv = rtl_priv(hw);
 109
 110        if (bwificfg) { /* for WMM */
 111                RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 112                         "USB Chip-B & WMM Setting.....\n");
 113                ep_map->ep_mapping[RTL_TXQ_BE]  = 2;
 114                ep_map->ep_mapping[RTL_TXQ_BK]  = 3;
 115                ep_map->ep_mapping[RTL_TXQ_VI]  = 3;
 116                ep_map->ep_mapping[RTL_TXQ_VO] = 2;
 117                ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
 118                ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
 119                ep_map->ep_mapping[RTL_TXQ_HI]  = 2;
 120        } else { /* typical setting */
 121                RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 122                         "USB typical Setting.....\n");
 123                ep_map->ep_mapping[RTL_TXQ_BE]  = 3;
 124                ep_map->ep_mapping[RTL_TXQ_BK]  = 3;
 125                ep_map->ep_mapping[RTL_TXQ_VI]  = 2;
 126                ep_map->ep_mapping[RTL_TXQ_VO]  = 2;
 127                ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
 128                ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
 129                ep_map->ep_mapping[RTL_TXQ_HI]  = 2;
 130        }
 131}
 132
 133static void _ThreeOutEpMapping(struct ieee80211_hw *hw, bool  bwificfg,
 134                               struct rtl_ep_map *ep_map)
 135{
 136        struct rtl_priv *rtlpriv = rtl_priv(hw);
 137        if (bwificfg) { /* for WMM */
 138                RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 139                         "USB 3EP Setting for WMM.....\n");
 140                ep_map->ep_mapping[RTL_TXQ_BE]  = 5;
 141                ep_map->ep_mapping[RTL_TXQ_BK]  = 3;
 142                ep_map->ep_mapping[RTL_TXQ_VI]  = 3;
 143                ep_map->ep_mapping[RTL_TXQ_VO]  = 2;
 144                ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
 145                ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
 146                ep_map->ep_mapping[RTL_TXQ_HI]  = 2;
 147        } else { /* typical setting */
 148                RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 149                         "USB 3EP Setting for typical.....\n");
 150                ep_map->ep_mapping[RTL_TXQ_BE]  = 5;
 151                ep_map->ep_mapping[RTL_TXQ_BK]  = 5;
 152                ep_map->ep_mapping[RTL_TXQ_VI]  = 3;
 153                ep_map->ep_mapping[RTL_TXQ_VO]  = 2;
 154                ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
 155                ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
 156                ep_map->ep_mapping[RTL_TXQ_HI]  = 2;
 157        }
 158}
 159
 160static void _OneOutEpMapping(struct ieee80211_hw *hw, struct rtl_ep_map *ep_map)
 161{
 162        ep_map->ep_mapping[RTL_TXQ_BE]  = 2;
 163        ep_map->ep_mapping[RTL_TXQ_BK]  = 2;
 164        ep_map->ep_mapping[RTL_TXQ_VI]  = 2;
 165        ep_map->ep_mapping[RTL_TXQ_VO] = 2;
 166        ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
 167        ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
 168        ep_map->ep_mapping[RTL_TXQ_HI]  = 2;
 169}
 170static int _out_ep_mapping(struct ieee80211_hw *hw)
 171{
 172        int err = 0;
 173        bool bIsChipN, bwificfg = false;
 174        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 175        struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
 176        struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
 177        struct rtl_ep_map *ep_map = &(rtlusb->ep_map);
 178
 179        bIsChipN = IS_NORMAL_CHIP(rtlhal->version);
 180        switch (rtlusb->out_ep_nums) {
 181        case 2:
 182                _TwoOutEpMapping(hw, bIsChipN, bwificfg, ep_map);
 183                break;
 184        case 3:
 185                /* Test chip doesn't support three out EPs. */
 186                if (!bIsChipN) {
 187                        err  =  -EINVAL;
 188                        goto err_out;
 189                }
 190                _ThreeOutEpMapping(hw, bIsChipN, ep_map);
 191                break;
 192        case 1:
 193                _OneOutEpMapping(hw, ep_map);
 194                break;
 195        default:
 196                err  =  -EINVAL;
 197                break;
 198        }
 199err_out:
 200        return err;
 201
 202}
 203/* endpoint mapping */
 204int  rtl8192cu_endpoint_mapping(struct ieee80211_hw *hw)
 205{
 206        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 207        int error = 0;
 208        if (likely(IS_NORMAL_CHIP(rtlhal->version)))
 209                error = _ConfigVerNOutEP(hw);
 210        else
 211                error = _ConfigVerTOutEP(hw);
 212        if (error)
 213                goto err_out;
 214        error = _out_ep_mapping(hw);
 215        if (error)
 216                goto err_out;
 217err_out:
 218        return error;
 219}
 220
 221u16 rtl8192cu_mq_to_hwq(__le16 fc, u16 mac80211_queue_index)
 222{
 223        u16 hw_queue_index;
 224
 225        if (unlikely(ieee80211_is_beacon(fc))) {
 226                hw_queue_index = RTL_TXQ_BCN;
 227                goto out;
 228        }
 229        if (ieee80211_is_mgmt(fc)) {
 230                hw_queue_index = RTL_TXQ_MGT;
 231                goto out;
 232        }
 233        switch (mac80211_queue_index) {
 234        case 0:
 235                hw_queue_index = RTL_TXQ_VO;
 236                break;
 237        case 1:
 238                hw_queue_index = RTL_TXQ_VI;
 239                break;
 240        case 2:
 241                hw_queue_index = RTL_TXQ_BE;
 242                break;
 243        case 3:
 244                hw_queue_index = RTL_TXQ_BK;
 245                break;
 246        default:
 247                hw_queue_index = RTL_TXQ_BE;
 248                RT_ASSERT(false, "QSLT_BE queue, skb_queue:%d\n",
 249                          mac80211_queue_index);
 250                break;
 251        }
 252out:
 253        return hw_queue_index;
 254}
 255
 256static enum rtl_desc_qsel _rtl8192cu_mq_to_descq(struct ieee80211_hw *hw,
 257                                         __le16 fc, u16 mac80211_queue_index)
 258{
 259        enum rtl_desc_qsel qsel;
 260        struct rtl_priv *rtlpriv = rtl_priv(hw);
 261
 262        if (unlikely(ieee80211_is_beacon(fc))) {
 263                qsel = QSLT_BEACON;
 264                goto out;
 265        }
 266        if (ieee80211_is_mgmt(fc)) {
 267                qsel = QSLT_MGNT;
 268                goto out;
 269        }
 270        switch (mac80211_queue_index) {
 271        case 0: /* VO */
 272                qsel = QSLT_VO;
 273                RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
 274                         "VO queue, set qsel = 0x%x\n", QSLT_VO);
 275                break;
 276        case 1: /* VI */
 277                qsel = QSLT_VI;
 278                RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
 279                         "VI queue, set qsel = 0x%x\n", QSLT_VI);
 280                break;
 281        case 3: /* BK */
 282                qsel = QSLT_BK;
 283                RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
 284                         "BK queue, set qsel = 0x%x\n", QSLT_BK);
 285                break;
 286        case 2: /* BE */
 287        default:
 288                qsel = QSLT_BE;
 289                RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
 290                         "BE queue, set qsel = 0x%x\n", QSLT_BE);
 291                break;
 292        }
 293out:
 294        return qsel;
 295}
 296
 297/* =============================================================== */
 298
 299/*----------------------------------------------------------------------
 300 *
 301 *      Rx handler
 302 *
 303 *---------------------------------------------------------------------- */
 304bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
 305                           struct rtl_stats *stats,
 306                           struct ieee80211_rx_status *rx_status,
 307                           u8 *pdesc, struct sk_buff *skb)
 308{
 309        struct rx_fwinfo_92c *p_drvinfo;
 310        struct rx_desc_92c *p_desc = (struct rx_desc_92c *)pdesc;
 311        u32 phystatus = GET_RX_DESC_PHY_STATUS(pdesc);
 312
 313        stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
 314        stats->rx_drvinfo_size = (u8)GET_RX_DESC_DRVINFO_SIZE(pdesc) *
 315                                 RX_DRV_INFO_SIZE_UNIT;
 316        stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
 317        stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
 318        stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
 319        stats->hwerror = (stats->crc | stats->icv);
 320        stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
 321        stats->rate = (u8) GET_RX_DESC_RX_MCS(pdesc);
 322        stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
 323        stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
 324        stats->isfirst_ampdu = (bool)((GET_RX_DESC_PAGGR(pdesc) == 1)
 325                                   && (GET_RX_DESC_FAGGR(pdesc) == 1));
 326        stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
 327        stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
 328        stats->is_ht = (bool)GET_RX_DESC_RX_HT(pdesc);
 329        rx_status->freq = hw->conf.chandef.chan->center_freq;
 330        rx_status->band = hw->conf.chandef.chan->band;
 331        if (GET_RX_DESC_CRC32(pdesc))
 332                rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 333        if (!GET_RX_DESC_SWDEC(pdesc))
 334                rx_status->flag |= RX_FLAG_DECRYPTED;
 335        if (GET_RX_DESC_BW(pdesc))
 336                rx_status->flag |= RX_FLAG_40MHZ;
 337        if (GET_RX_DESC_RX_HT(pdesc))
 338                rx_status->flag |= RX_FLAG_HT;
 339        rx_status->flag |= RX_FLAG_MACTIME_START;
 340        if (stats->decrypted)
 341                rx_status->flag |= RX_FLAG_DECRYPTED;
 342        rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
 343                                                   false, stats->rate);
 344        rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
 345        if (phystatus) {
 346                p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
 347                                                     stats->rx_bufshift);
 348                rtl92c_translate_rx_signal_stuff(hw, skb, stats, p_desc,
 349                                                 p_drvinfo);
 350        }
 351        /*rx_status->qual = stats->signal; */
 352        rx_status->signal = stats->recvsignalpower + 10;
 353        return true;
 354}
 355
 356#define RTL_RX_DRV_INFO_UNIT            8
 357
 358static void _rtl_rx_process(struct ieee80211_hw *hw, struct sk_buff *skb)
 359{
 360        struct ieee80211_rx_status *rx_status =
 361                 (struct ieee80211_rx_status *)IEEE80211_SKB_RXCB(skb);
 362        u32 skb_len, pkt_len, drvinfo_len;
 363        struct rtl_priv *rtlpriv = rtl_priv(hw);
 364        u8 *rxdesc;
 365        struct rtl_stats stats = {
 366                .signal = 0,
 367                .rate = 0,
 368        };
 369        struct rx_fwinfo_92c *p_drvinfo;
 370        bool bv;
 371        __le16 fc;
 372        struct ieee80211_hdr *hdr;
 373
 374        memset(rx_status, 0, sizeof(*rx_status));
 375        rxdesc  = skb->data;
 376        skb_len = skb->len;
 377        drvinfo_len = (GET_RX_DESC_DRVINFO_SIZE(rxdesc) * RTL_RX_DRV_INFO_UNIT);
 378        pkt_len         = GET_RX_DESC_PKT_LEN(rxdesc);
 379        /* TODO: Error recovery. drop this skb or something. */
 380        WARN_ON(skb_len < (pkt_len + RTL_RX_DESC_SIZE + drvinfo_len));
 381        stats.length = (u16) GET_RX_DESC_PKT_LEN(rxdesc);
 382        stats.rx_drvinfo_size = (u8)GET_RX_DESC_DRVINFO_SIZE(rxdesc) *
 383                                RX_DRV_INFO_SIZE_UNIT;
 384        stats.rx_bufshift = (u8) (GET_RX_DESC_SHIFT(rxdesc) & 0x03);
 385        stats.icv = (u16) GET_RX_DESC_ICV(rxdesc);
 386        stats.crc = (u16) GET_RX_DESC_CRC32(rxdesc);
 387        stats.hwerror = (stats.crc | stats.icv);
 388        stats.decrypted = !GET_RX_DESC_SWDEC(rxdesc);
 389        stats.rate = (u8) GET_RX_DESC_RX_MCS(rxdesc);
 390        stats.shortpreamble = (u16) GET_RX_DESC_SPLCP(rxdesc);
 391        stats.isampdu = (bool) ((GET_RX_DESC_PAGGR(rxdesc) == 1)
 392                                   && (GET_RX_DESC_FAGGR(rxdesc) == 1));
 393        stats.timestamp_low = GET_RX_DESC_TSFL(rxdesc);
 394        stats.rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(rxdesc);
 395        stats.is_ht = (bool)GET_RX_DESC_RX_HT(rxdesc);
 396        /* TODO: is center_freq changed when doing scan? */
 397        /* TODO: Shall we add protection or just skip those two step? */
 398        rx_status->freq = hw->conf.chandef.chan->center_freq;
 399        rx_status->band = hw->conf.chandef.chan->band;
 400        if (GET_RX_DESC_CRC32(rxdesc))
 401                rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 402        if (!GET_RX_DESC_SWDEC(rxdesc))
 403                rx_status->flag |= RX_FLAG_DECRYPTED;
 404        if (GET_RX_DESC_BW(rxdesc))
 405                rx_status->flag |= RX_FLAG_40MHZ;
 406        if (GET_RX_DESC_RX_HT(rxdesc))
 407                rx_status->flag |= RX_FLAG_HT;
 408        /* Data rate */
 409        rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats.is_ht,
 410                                                   false, stats.rate);
 411        /*  There is a phy status after this rx descriptor. */
 412        if (GET_RX_DESC_PHY_STATUS(rxdesc)) {
 413                p_drvinfo = (struct rx_fwinfo_92c *)(rxdesc + RTL_RX_DESC_SIZE);
 414                rtl92c_translate_rx_signal_stuff(hw, skb, &stats,
 415                                 (struct rx_desc_92c *)rxdesc, p_drvinfo);
 416        }
 417        skb_pull(skb, (drvinfo_len + RTL_RX_DESC_SIZE));
 418        hdr = (struct ieee80211_hdr *)(skb->data);
 419        fc = hdr->frame_control;
 420        bv = ieee80211_is_probe_resp(fc);
 421        if (bv)
 422                RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 423                         "Got probe response frame\n");
 424        if (ieee80211_is_beacon(fc))
 425                RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "Got beacon frame\n");
 426        if (ieee80211_is_data(fc))
 427                RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "Got data frame\n");
 428        RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 429                 "Fram: fc = 0x%X addr1 = 0x%02X:0x%02X:0x%02X:0x%02X:0x%02X:0x%02X\n",
 430                 fc,
 431                 (u32)hdr->addr1[0], (u32)hdr->addr1[1],
 432                 (u32)hdr->addr1[2], (u32)hdr->addr1[3],
 433                 (u32)hdr->addr1[4], (u32)hdr->addr1[5]);
 434        memcpy(IEEE80211_SKB_RXCB(skb), rx_status, sizeof(*rx_status));
 435        ieee80211_rx(hw, skb);
 436}
 437
 438void  rtl8192cu_rx_hdl(struct ieee80211_hw *hw, struct sk_buff * skb)
 439{
 440        _rtl_rx_process(hw, skb);
 441}
 442
 443void rtl8192c_rx_segregate_hdl(
 444        struct ieee80211_hw *hw,
 445        struct sk_buff *skb,
 446        struct sk_buff_head *skb_list)
 447{
 448}
 449
 450/*----------------------------------------------------------------------
 451 *
 452 *      Tx handler
 453 *
 454 *---------------------------------------------------------------------- */
 455void rtl8192c_tx_cleanup(struct ieee80211_hw *hw, struct sk_buff  *skb)
 456{
 457}
 458
 459int rtl8192c_tx_post_hdl(struct ieee80211_hw *hw, struct urb *urb,
 460                         struct sk_buff *skb)
 461{
 462        return 0;
 463}
 464
 465struct sk_buff *rtl8192c_tx_aggregate_hdl(struct ieee80211_hw *hw,
 466                                           struct sk_buff_head *list)
 467{
 468        return skb_dequeue(list);
 469}
 470
 471/*======================================== trx ===============================*/
 472
 473static void _rtl_fill_usb_tx_desc(u8 *txdesc)
 474{
 475        SET_TX_DESC_OWN(txdesc, 1);
 476        SET_TX_DESC_LAST_SEG(txdesc, 1);
 477        SET_TX_DESC_FIRST_SEG(txdesc, 1);
 478}
 479/**
 480 *      For HW recovery information
 481 */
 482static void _rtl_tx_desc_checksum(u8 *txdesc)
 483{
 484        u16 *ptr = (u16 *)txdesc;
 485        u16     checksum = 0;
 486        u32 index;
 487
 488        /* Clear first */
 489        SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, 0);
 490        for (index = 0; index < 16; index++)
 491                checksum = checksum ^ (*(ptr + index));
 492        SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, checksum);
 493}
 494
 495void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
 496                          struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 497                          u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
 498                          struct ieee80211_sta *sta,
 499                          struct sk_buff *skb,
 500                          u8 queue_index,
 501                          struct rtl_tcb_desc *tcb_desc)
 502{
 503        struct rtl_priv *rtlpriv = rtl_priv(hw);
 504        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 505        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 506        bool defaultadapter = true;
 507        u8 *qc = ieee80211_get_qos_ctl(hdr);
 508        u8 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
 509        u16 seq_number;
 510        __le16 fc = hdr->frame_control;
 511        u8 rate_flag = info->control.rates[0].flags;
 512        u16 pktlen = skb->len;
 513        enum rtl_desc_qsel fw_qsel = _rtl8192cu_mq_to_descq(hw, fc,
 514                                                skb_get_queue_mapping(skb));
 515        u8 *txdesc;
 516
 517        seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
 518        rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
 519        txdesc = (u8 *)skb_push(skb, RTL_TX_HEADER_SIZE);
 520        memset(txdesc, 0, RTL_TX_HEADER_SIZE);
 521        SET_TX_DESC_PKT_SIZE(txdesc, pktlen);
 522        SET_TX_DESC_LINIP(txdesc, 0);
 523        SET_TX_DESC_PKT_OFFSET(txdesc, RTL_DUMMY_OFFSET);
 524        SET_TX_DESC_OFFSET(txdesc, RTL_TX_HEADER_SIZE);
 525        SET_TX_DESC_TX_RATE(txdesc, tcb_desc->hw_rate);
 526        if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
 527                SET_TX_DESC_DATA_SHORTGI(txdesc, 1);
 528        if (mac->tids[tid].agg.agg_state == RTL_AGG_ON &&
 529                    info->flags & IEEE80211_TX_CTL_AMPDU) {
 530                SET_TX_DESC_AGG_ENABLE(txdesc, 1);
 531                SET_TX_DESC_MAX_AGG_NUM(txdesc, 0x14);
 532        } else {
 533                SET_TX_DESC_AGG_BREAK(txdesc, 1);
 534        }
 535        SET_TX_DESC_SEQ(txdesc, seq_number);
 536        SET_TX_DESC_RTS_ENABLE(txdesc, ((tcb_desc->rts_enable &&
 537                               !tcb_desc->cts_enable) ? 1 : 0));
 538        SET_TX_DESC_HW_RTS_ENABLE(txdesc, ((tcb_desc->rts_enable ||
 539                                  tcb_desc->cts_enable) ? 1 : 0));
 540        SET_TX_DESC_CTS2SELF(txdesc, ((tcb_desc->cts_enable) ? 1 : 0));
 541        SET_TX_DESC_RTS_STBC(txdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
 542        SET_TX_DESC_RTS_RATE(txdesc, tcb_desc->rts_rate);
 543        SET_TX_DESC_RTS_BW(txdesc, 0);
 544        SET_TX_DESC_RTS_SC(txdesc, tcb_desc->rts_sc);
 545        SET_TX_DESC_RTS_SHORT(txdesc,
 546                              ((tcb_desc->rts_rate <= DESC_RATE54M) ?
 547                               (tcb_desc->rts_use_shortpreamble ? 1 : 0)
 548                               : (tcb_desc->rts_use_shortgi ? 1 : 0)));
 549        if (mac->bw_40) {
 550                if (rate_flag & IEEE80211_TX_RC_DUP_DATA) {
 551                        SET_TX_DESC_DATA_BW(txdesc, 1);
 552                        SET_TX_DESC_DATA_SC(txdesc, 3);
 553                } else if(rate_flag & IEEE80211_TX_RC_40_MHZ_WIDTH){
 554                        SET_TX_DESC_DATA_BW(txdesc, 1);
 555                        SET_TX_DESC_DATA_SC(txdesc, mac->cur_40_prime_sc);
 556                } else {
 557                        SET_TX_DESC_DATA_BW(txdesc, 0);
 558                        SET_TX_DESC_DATA_SC(txdesc, 0);
 559                }
 560        } else {
 561                SET_TX_DESC_DATA_BW(txdesc, 0);
 562                SET_TX_DESC_DATA_SC(txdesc, 0);
 563        }
 564        rcu_read_lock();
 565        sta = ieee80211_find_sta(mac->vif, mac->bssid);
 566        if (sta) {
 567                u8 ampdu_density = sta->ht_cap.ampdu_density;
 568                SET_TX_DESC_AMPDU_DENSITY(txdesc, ampdu_density);
 569        }
 570        rcu_read_unlock();
 571        if (info->control.hw_key) {
 572                struct ieee80211_key_conf *keyconf = info->control.hw_key;
 573                switch (keyconf->cipher) {
 574                case WLAN_CIPHER_SUITE_WEP40:
 575                case WLAN_CIPHER_SUITE_WEP104:
 576                case WLAN_CIPHER_SUITE_TKIP:
 577                        SET_TX_DESC_SEC_TYPE(txdesc, 0x1);
 578                        break;
 579                case WLAN_CIPHER_SUITE_CCMP:
 580                        SET_TX_DESC_SEC_TYPE(txdesc, 0x3);
 581                        break;
 582                default:
 583                        SET_TX_DESC_SEC_TYPE(txdesc, 0x0);
 584                        break;
 585                }
 586        }
 587        SET_TX_DESC_PKT_ID(txdesc, 0);
 588        SET_TX_DESC_QUEUE_SEL(txdesc, fw_qsel);
 589        SET_TX_DESC_DATA_RATE_FB_LIMIT(txdesc, 0x1F);
 590        SET_TX_DESC_RTS_RATE_FB_LIMIT(txdesc, 0xF);
 591        SET_TX_DESC_DISABLE_FB(txdesc, 0);
 592        SET_TX_DESC_USE_RATE(txdesc, tcb_desc->use_driver_rate ? 1 : 0);
 593        if (ieee80211_is_data_qos(fc)) {
 594                if (mac->rdg_en) {
 595                        RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
 596                                 "Enable RDG function\n");
 597                        SET_TX_DESC_RDG_ENABLE(txdesc, 1);
 598                        SET_TX_DESC_HTC(txdesc, 1);
 599                }
 600        }
 601        if (rtlpriv->dm.useramask) {
 602                SET_TX_DESC_RATE_ID(txdesc, tcb_desc->ratr_index);
 603                SET_TX_DESC_MACID(txdesc, tcb_desc->mac_id);
 604        } else {
 605                SET_TX_DESC_RATE_ID(txdesc, 0xC + tcb_desc->ratr_index);
 606                SET_TX_DESC_MACID(txdesc, tcb_desc->ratr_index);
 607        }
 608        if ((!ieee80211_is_data_qos(fc)) && ppsc->leisure_ps &&
 609              ppsc->fwctrl_lps) {
 610                SET_TX_DESC_HWSEQ_EN(txdesc, 1);
 611                SET_TX_DESC_PKT_ID(txdesc, 8);
 612                if (!defaultadapter)
 613                        SET_TX_DESC_QOS(txdesc, 1);
 614        }
 615        if (ieee80211_has_morefrags(fc))
 616                SET_TX_DESC_MORE_FRAG(txdesc, 1);
 617        if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
 618            is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
 619                SET_TX_DESC_BMC(txdesc, 1);
 620        _rtl_fill_usb_tx_desc(txdesc);
 621        _rtl_tx_desc_checksum(txdesc);
 622        RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "==>\n");
 623}
 624
 625void rtl92cu_fill_fake_txdesc(struct ieee80211_hw *hw, u8 * pDesc,
 626                              u32 buffer_len, bool bIsPsPoll)
 627{
 628        /* Clear all status */
 629        memset(pDesc, 0, RTL_TX_HEADER_SIZE);
 630        SET_TX_DESC_FIRST_SEG(pDesc, 1); /* bFirstSeg; */
 631        SET_TX_DESC_LAST_SEG(pDesc, 1); /* bLastSeg; */
 632        SET_TX_DESC_OFFSET(pDesc, RTL_TX_HEADER_SIZE); /* Offset = 32 */
 633        SET_TX_DESC_PKT_SIZE(pDesc, buffer_len); /* Buffer size + command hdr */
 634        SET_TX_DESC_QUEUE_SEL(pDesc, QSLT_MGNT); /* Fixed queue of Mgnt queue */
 635        /* Set NAVUSEHDR to prevent Ps-poll AId filed to be changed to error
 636         * vlaue by Hw. */
 637        if (bIsPsPoll) {
 638                SET_TX_DESC_NAV_USE_HDR(pDesc, 1);
 639        } else {
 640                SET_TX_DESC_HWSEQ_EN(pDesc, 1); /* Hw set sequence number */
 641                SET_TX_DESC_PKT_ID(pDesc, 0x100); /* set bit3 to 1. */
 642        }
 643        SET_TX_DESC_USE_RATE(pDesc, 1); /* use data rate which is set by Sw */
 644        SET_TX_DESC_OWN(pDesc, 1);
 645        SET_TX_DESC_TX_RATE(pDesc, DESC_RATE1M);
 646        _rtl_tx_desc_checksum(pDesc);
 647}
 648
 649void rtl92cu_tx_fill_cmddesc(struct ieee80211_hw *hw,
 650                             u8 *pdesc, bool firstseg,
 651                             bool lastseg, struct sk_buff *skb)
 652{
 653        struct rtl_priv *rtlpriv = rtl_priv(hw);
 654        u8 fw_queue = QSLT_BEACON;
 655        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 656        __le16 fc = hdr->frame_control;
 657
 658        memset((void *)pdesc, 0, RTL_TX_HEADER_SIZE);
 659        if (firstseg)
 660                SET_TX_DESC_OFFSET(pdesc, RTL_TX_HEADER_SIZE);
 661        SET_TX_DESC_TX_RATE(pdesc, DESC_RATE1M);
 662        SET_TX_DESC_SEQ(pdesc, 0);
 663        SET_TX_DESC_LINIP(pdesc, 0);
 664        SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
 665        SET_TX_DESC_FIRST_SEG(pdesc, 1);
 666        SET_TX_DESC_LAST_SEG(pdesc, 1);
 667        SET_TX_DESC_RATE_ID(pdesc, 7);
 668        SET_TX_DESC_MACID(pdesc, 0);
 669        SET_TX_DESC_OWN(pdesc, 1);
 670        SET_TX_DESC_PKT_SIZE(pdesc, (u16)skb->len);
 671        SET_TX_DESC_FIRST_SEG(pdesc, 1);
 672        SET_TX_DESC_LAST_SEG(pdesc, 1);
 673        SET_TX_DESC_OFFSET(pdesc, 0x20);
 674        SET_TX_DESC_USE_RATE(pdesc, 1);
 675        if (!ieee80211_is_data_qos(fc)) {
 676                SET_TX_DESC_HWSEQ_EN(pdesc, 1);
 677                SET_TX_DESC_PKT_ID(pdesc, 8);
 678        }
 679        RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD, "H2C Tx Cmd Content",
 680                      pdesc, RTL_TX_DESC_SIZE);
 681}
 682
 683bool rtl92cu_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb)
 684{
 685        return true;
 686}
 687