drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c

   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
  43 static 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
  76 static 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
 105 static 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
 133 static 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
 160 static 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 }
 170 static 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         }
 199 err_out:
 200         return err;
 201
 202 }
 203 /* endpoint mapping */
 204 int  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;
 217 err_out:
 218         return error;
 219 }
 220
 221 u16 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         }
 252 out:
 253         return hw_queue_index;
 254 }
 255
 256 static 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         }
 293 out:
 294         return qsel;
 295 }
 296
 297 /* =============================================================== */
 298
 299 /*----------------------------------------------------------------------
 300  *
 301  *      Rx handler
 302  *
 303  *---------------------------------------------------------------------- */
 304 bool 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
 358 static 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
 438 void  rtl8192cu_rx_hdl(struct ieee80211_hw *hw, struct sk_buff * skb)
 439 {
 440         _rtl_rx_process(hw, skb);
 441 }
 442
 443 void 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  *---------------------------------------------------------------------- */
 455 void rtl8192c_tx_cleanup(struct ieee80211_hw *hw, struct sk_buff  *skb)
 456 {
 457 }
 458
 459 int rtl8192c_tx_post_hdl(struct ieee80211_hw *hw, struct urb *urb,
 460                          struct sk_buff *skb)
 461 {
 462         return 0;
 463 }
 464
 465 struct 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
 473 static 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  */
 482 static 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
 495 void 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
 625 void 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
 649 void 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
 683 bool rtl92cu_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb)
 684 {
 685         return true;
 686 }