kernel/drivers/staging/rtl8712/rtl8712_xmit.c

   1 /******************************************************************************
   2  * rtl8712_xmit.c
   3  *
   4  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   5  * Linux device driver for RTL8192SU
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  19  *
  20  * Modifications for inclusion into the Linux staging tree are
  21  * Copyright(c) 2010 Larry Finger. All rights reserved.
  22  *
  23  * Contact information:
  24  * WLAN FAE <wlanfae@realtek.com>
  25  * Larry Finger <Larry.Finger@lwfinger.net>
  26  *
  27  ******************************************************************************/
  28
  29 #define _RTL8712_XMIT_C_
  30
  31 #include "osdep_service.h"
  32 #include "drv_types.h"
  33 #include "wifi.h"
  34 #include "osdep_intf.h"
  35 #include "usb_ops.h"
  36
  37 static void dump_xframe(struct _adapter *padapter,
  38                         struct xmit_frame *pxmitframe);
  39 static void update_txdesc(struct xmit_frame *pxmitframe, uint *pmem, int sz);
  40
  41 sint _r8712_init_hw_txqueue(struct hw_txqueue *phw_txqueue, u8 ac_tag)
  42 {
  43         phw_txqueue->ac_tag = ac_tag;
  44         switch (ac_tag) {
  45         case BE_QUEUE_INX:
  46                 phw_txqueue->ff_hwaddr = RTL8712_DMA_BEQ;
  47                 break;
  48         case BK_QUEUE_INX:
  49                 phw_txqueue->ff_hwaddr = RTL8712_DMA_BKQ;
  50                 break;
  51         case VI_QUEUE_INX:
  52                 phw_txqueue->ff_hwaddr = RTL8712_DMA_VIQ;
  53                 break;
  54         case VO_QUEUE_INX:
  55                 phw_txqueue->ff_hwaddr = RTL8712_DMA_VOQ;
  56                 break;
  57         case BMC_QUEUE_INX:
  58                 phw_txqueue->ff_hwaddr = RTL8712_DMA_BEQ;
  59                 break;
  60         }
  61         return _SUCCESS;
  62 }
  63
  64 int r8712_txframes_sta_ac_pending(struct _adapter *padapter,
  65                                   struct pkt_attrib *pattrib)
  66 {
  67         struct sta_info *psta;
  68         struct tx_servq *ptxservq;
  69         int priority = pattrib->priority;
  70
  71         psta = pattrib->psta;
  72         switch (priority) {
  73         case 1:
  74         case 2:
  75                 ptxservq = &(psta->sta_xmitpriv.bk_q);
  76                 break;
  77         case 4:
  78         case 5:
  79                 ptxservq = &(psta->sta_xmitpriv.vi_q);
  80                 break;
  81         case 6:
  82         case 7:
  83                 ptxservq = &(psta->sta_xmitpriv.vo_q);
  84                 break;
  85         case 0:
  86         case 3:
  87         default:
  88                 ptxservq = &(psta->sta_xmitpriv.be_q);
  89         break;
  90         }
  91         return ptxservq->qcnt;
  92 }
  93
  94 static u32 get_ff_hwaddr(struct xmit_frame *pxmitframe)
  95 {
  96         u32 addr = 0;
  97         struct pkt_attrib *pattrib = &pxmitframe->attrib;
  98         struct _adapter *padapter = pxmitframe->padapter;
  99         struct dvobj_priv *pdvobj = &padapter->dvobjpriv;
 100
 101         if (pxmitframe->frame_tag == TXAGG_FRAMETAG) {
 102                 addr = RTL8712_DMA_H2CCMD;
 103         } else if (pxmitframe->frame_tag == MGNT_FRAMETAG) {
 104                 addr = RTL8712_DMA_MGTQ;
 105         } else if (pdvobj->nr_endpoint == 6) {
 106                 switch (pattrib->priority) {
 107                 case 0:
 108                 case 3:
 109                         addr = RTL8712_DMA_BEQ;
 110                         break;
 111                 case 1:
 112                 case 2:
 113                         addr = RTL8712_DMA_BKQ;
 114                         break;
 115                 case 4:
 116                 case 5:
 117                         addr = RTL8712_DMA_VIQ;
 118                         break;
 119                 case 6:
 120                 case 7:
 121                         addr = RTL8712_DMA_VOQ;
 122                         break;
 123                 case 0x10:
 124                 case 0x11:
 125                 case 0x12:
 126                 case 0x13:
 127                         addr = RTL8712_DMA_H2CCMD;
 128                         break;
 129                 default:
 130                         addr = RTL8712_DMA_BEQ;
 131                         break;
 132                 }
 133         } else if (pdvobj->nr_endpoint == 4) {
 134                 switch (pattrib->qsel) {
 135                 case 0:
 136                 case 3:
 137                 case 1:
 138                 case 2:
 139                         addr = RTL8712_DMA_BEQ;/*RTL8712_EP_LO;*/
 140                         break;
 141                 case 4:
 142                 case 5:
 143                 case 6:
 144                 case 7:
 145                         addr = RTL8712_DMA_VOQ;/*RTL8712_EP_HI;*/
 146                         break;
 147                 case 0x10:
 148                 case 0x11:
 149                 case 0x12:
 150                 case 0x13:
 151                         addr = RTL8712_DMA_H2CCMD;
 152                         break;
 153                 default:
 154                         addr = RTL8712_DMA_BEQ;/*RTL8712_EP_LO;*/
 155                         break;
 156                 }
 157         }
 158         return addr;
 159 }
 160
 161 static struct xmit_frame *dequeue_one_xmitframe(struct xmit_priv *pxmitpriv,
 162                                          struct hw_xmit *phwxmit,
 163                                          struct tx_servq *ptxservq,
 164                                          struct  __queue *pframe_queue)
 165 {
 166         struct list_head *xmitframe_plist, *xmitframe_phead;
 167         struct  xmit_frame *pxmitframe = NULL;
 168
 169         xmitframe_phead = &pframe_queue->queue;
 170         xmitframe_plist = xmitframe_phead->next;
 171         if (!end_of_queue_search(xmitframe_phead, xmitframe_plist)) {
 172                 pxmitframe = LIST_CONTAINOR(xmitframe_plist,
 173                              struct xmit_frame, list);
 174                 list_del_init(&pxmitframe->list);
 175                 ptxservq->qcnt--;
 176                 phwxmit->txcmdcnt++;
 177         }
 178         return pxmitframe;
 179 }
 180
 181 static struct xmit_frame *dequeue_xframe_ex(struct xmit_priv *pxmitpriv,
 182                                      struct hw_xmit *phwxmit_i, sint entry)
 183 {
 184         unsigned long irqL0;
 185         struct list_head *sta_plist, *sta_phead;
 186         struct hw_xmit *phwxmit;
 187         struct tx_servq *ptxservq = NULL;
 188         struct  __queue *pframe_queue = NULL;
 189         struct  xmit_frame *pxmitframe = NULL;
 190         int i, inx[4];
 191         int j, acirp_cnt[4];
 192
 193         /*entry indx: 0->vo, 1->vi, 2->be, 3->bk.*/
 194         inx[0] = 0; acirp_cnt[0] = pxmitpriv->voq_cnt;
 195         inx[1] = 1; acirp_cnt[1] = pxmitpriv->viq_cnt;
 196         inx[2] = 2; acirp_cnt[2] = pxmitpriv->beq_cnt;
 197         inx[3] = 3; acirp_cnt[3] = pxmitpriv->bkq_cnt;
 198         for (i = 0; i < 4; i++) {
 199                 for (j = i + 1; j < 4; j++) {
 200                         if (acirp_cnt[j] < acirp_cnt[i]) {
 201                                 swap(acirp_cnt[i], acirp_cnt[j]);
 202                                 swap(inx[i], inx[j]);
 203                         }
 204                 }
 205         }
 206         spin_lock_irqsave(&pxmitpriv->lock, irqL0);
 207         for (i = 0; i < entry; i++) {
 208                 phwxmit = phwxmit_i + inx[i];
 209                 sta_phead = &phwxmit->sta_queue->queue;
 210                 sta_plist = sta_phead->next;
 211                 while (!end_of_queue_search(sta_phead, sta_plist)) {
 212                         ptxservq = LIST_CONTAINOR(sta_plist, struct tx_servq,
 213                                   tx_pending);
 214                         pframe_queue = &ptxservq->sta_pending;
 215                         pxmitframe = dequeue_one_xmitframe(pxmitpriv, phwxmit,
 216                                      ptxservq, pframe_queue);
 217                         if (pxmitframe) {
 218                                 phwxmit->accnt--;
 219                                 goto exit_dequeue_xframe_ex;
 220                         }
 221                         sta_plist = sta_plist->next;
 222                         /*Remove sta node when there are no pending packets.*/
 223                         if (list_empty(&pframe_queue->queue)) {
 224                                 /* must be done after sta_plist->next
 225                                  * and before break
 226                                  */
 227                                 list_del_init(&ptxservq->tx_pending);
 228                         }
 229                 }
 230         }
 231 exit_dequeue_xframe_ex:
 232         spin_unlock_irqrestore(&pxmitpriv->lock, irqL0);
 233         return pxmitframe;
 234 }
 235
 236 void r8712_do_queue_select(struct _adapter *padapter,
 237                            struct pkt_attrib *pattrib)
 238 {
 239         unsigned int qsel = 0;
 240         struct dvobj_priv *pdvobj = &padapter->dvobjpriv;
 241
 242         if (pdvobj->nr_endpoint == 6) {
 243                 qsel = (unsigned int) pattrib->priority;
 244         } else if (pdvobj->nr_endpoint == 4) {
 245                 qsel = (unsigned int) pattrib->priority;
 246                 if (qsel == 0 || qsel == 3)
 247                         qsel = 3;
 248                 else if (qsel == 1 || qsel == 2)
 249                         qsel = 1;
 250                 else if (qsel == 4 || qsel == 5)
 251                         qsel = 5;
 252                 else if (qsel == 6 || qsel == 7)
 253                         qsel = 7;
 254                 else
 255                         qsel = 3;
 256         }
 257         pattrib->qsel = qsel;
 258 }
 259
 260 #ifdef CONFIG_R8712_TX_AGGR
 261 u8 r8712_construct_txaggr_cmd_desc(struct xmit_buf *pxmitbuf)
 262 {
 263         struct tx_desc *ptx_desc = (struct tx_desc *)pxmitbuf->pbuf;
 264
 265         /* Fill up TxCmd Descriptor according as USB FW Tx Aaggregation info.*/
 266         /* dw0 */
 267         ptx_desc->txdw0 = cpu_to_le32(CMD_HDR_SZ & 0xffff);
 268         ptx_desc->txdw0 |=
 269                 cpu_to_le32(((TXDESC_SIZE + OFFSET_SZ) << OFFSET_SHT) &
 270                             0x00ff0000);
 271         ptx_desc->txdw0 |= cpu_to_le32(OWN | FSG | LSG);
 272
 273         /* dw1 */
 274         ptx_desc->txdw1 |= cpu_to_le32((0x13 << QSEL_SHT) & 0x00001f00);
 275
 276         return _SUCCESS;
 277 }
 278
 279 u8 r8712_construct_txaggr_cmd_hdr(struct xmit_buf *pxmitbuf)
 280 {
 281         struct xmit_frame *pxmitframe = (struct xmit_frame *)
 282                 pxmitbuf->priv_data;
 283         struct _adapter *padapter = pxmitframe->padapter;
 284         struct cmd_priv *pcmdpriv = &(padapter->cmdpriv);
 285         struct cmd_hdr *pcmd_hdr = (struct cmd_hdr  *)
 286                 (pxmitbuf->pbuf + TXDESC_SIZE);
 287
 288         /* Fill up Cmd Header for USB FW Tx Aggregation.*/
 289         /* dw0 */
 290         pcmd_hdr->cmd_dw0 = cpu_to_le32((GEN_CMD_CODE(_AMSDU_TO_AMPDU) << 16) |
 291                                         (pcmdpriv->cmd_seq << 24));
 292         pcmdpriv->cmd_seq++;
 293
 294         return _SUCCESS;
 295 }
 296
 297 u8 r8712_append_mpdu_unit(struct xmit_buf *pxmitbuf,
 298                         struct xmit_frame *pxmitframe)
 299 {
 300         struct _adapter *padapter = pxmitframe->padapter;
 301         struct tx_desc *ptx_desc = (struct tx_desc *)pxmitbuf->pbuf;
 302         int last_txcmdsz = 0;
 303         int padding_sz = 0;
 304
 305         /* 802.3->802.11 convertor */
 306         r8712_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
 307         /* free skb struct */
 308         r8712_xmit_complete(padapter, pxmitframe);
 309         if (pxmitframe->attrib.ether_type != 0x0806) {
 310                 if ((pxmitframe->attrib.ether_type != 0x888e) &&
 311                         (pxmitframe->attrib.dhcp_pkt != 1)) {
 312                         r8712_issue_addbareq_cmd(padapter,
 313                                         pxmitframe->attrib.priority);
 314                 }
 315         }
 316         pxmitframe->last[0] = 1;
 317         update_txdesc(pxmitframe, (uint *)(pxmitframe->buf_addr),
 318                 pxmitframe->attrib.last_txcmdsz);
 319         /*padding zero */
 320         last_txcmdsz = pxmitframe->attrib.last_txcmdsz;
 321         padding_sz = (8 - (last_txcmdsz % 8));
 322         if ((last_txcmdsz % 8) != 0) {
 323                 int i;
 324
 325                 for (i = 0; i < padding_sz; i++)
 326                         *(pxmitframe->buf_addr + TXDESC_SIZE + last_txcmdsz +
 327                           i) = 0;
 328         }
 329         /* Add the new mpdu's length */
 330         ptx_desc->txdw0 = cpu_to_le32((ptx_desc->txdw0 & 0xffff0000) |
 331                 ((ptx_desc->txdw0 & 0x0000ffff) +
 332                         ((TXDESC_SIZE + last_txcmdsz + padding_sz) &
 333                          0x0000ffff)));
 334
 335         return _SUCCESS;
 336 }
 337
 338
 339 u8 r8712_xmitframe_aggr_1st(struct xmit_buf *pxmitbuf,
 340                         struct xmit_frame *pxmitframe)
 341 {
 342         /* linux complete context doesn't need to protect */
 343         pxmitframe->pxmitbuf = pxmitbuf;
 344         pxmitbuf->priv_data = pxmitframe;
 345         pxmitframe->pxmit_urb[0] = pxmitbuf->pxmit_urb[0];
 346         /* buffer addr assoc */
 347         pxmitframe->buf_addr = pxmitbuf->pbuf + TXDESC_SIZE + CMD_HDR_SZ;
 348         /*RTL8712_DMA_H2CCMD */
 349         r8712_construct_txaggr_cmd_desc(pxmitbuf);
 350         r8712_construct_txaggr_cmd_hdr(pxmitbuf);
 351         if (r8712_append_mpdu_unit(pxmitbuf, pxmitframe) == _SUCCESS)
 352                 pxmitbuf->aggr_nr = 1;
 353
 354         return _SUCCESS;
 355 }
 356
 357 u16 r8712_xmitframe_aggr_next(struct xmit_buf *pxmitbuf,
 358                         struct xmit_frame *pxmitframe)
 359 {
 360         pxmitframe->pxmitbuf = pxmitbuf;
 361         pxmitbuf->priv_data = pxmitframe;
 362         pxmitframe->pxmit_urb[0] = pxmitbuf->pxmit_urb[0];
 363         /* buffer addr assoc */
 364         pxmitframe->buf_addr = pxmitbuf->pbuf + TXDESC_SIZE +
 365                 (((struct tx_desc *)pxmitbuf->pbuf)->txdw0 & 0x0000ffff);
 366         if (r8712_append_mpdu_unit(pxmitbuf, pxmitframe) == _SUCCESS) {
 367                 r8712_free_xmitframe_ex(&pxmitframe->padapter->xmitpriv,
 368                                         pxmitframe);
 369                 pxmitbuf->aggr_nr++;
 370         }
 371
 372         return TXDESC_SIZE +
 373                 (((struct tx_desc *)pxmitbuf->pbuf)->txdw0 & 0x0000ffff);
 374 }
 375
 376 u8 r8712_dump_aggr_xframe(struct xmit_buf *pxmitbuf,
 377                         struct xmit_frame *pxmitframe)
 378 {
 379         struct _adapter *padapter = pxmitframe->padapter;
 380         struct dvobj_priv *pdvobj = &padapter->dvobjpriv;
 381         struct tx_desc *ptxdesc = pxmitbuf->pbuf;
 382         struct cmd_hdr *pcmd_hdr = (struct cmd_hdr *)
 383                 (pxmitbuf->pbuf + TXDESC_SIZE);
 384         u16 total_length = (u16) (ptxdesc->txdw0 & 0xffff);
 385
 386         /* use 1st xmitframe as media */
 387         xmitframe_xmitbuf_attach(pxmitframe, pxmitbuf);
 388         pcmd_hdr->cmd_dw0 = cpu_to_le32(((total_length - CMD_HDR_SZ) &
 389                                          0x0000ffff) | (pcmd_hdr->cmd_dw0 &
 390                                                         0xffff0000));
 391
 392         /* urb length in cmd_dw1 */
 393         pcmd_hdr->cmd_dw1 = cpu_to_le32((pxmitbuf->aggr_nr & 0xff)|
 394                                         ((total_length + TXDESC_SIZE) << 16));
 395         pxmitframe->last[0] = 1;
 396         pxmitframe->bpending[0] = false;
 397         pxmitframe->mem_addr = pxmitbuf->pbuf;
 398
 399         if ((pdvobj->ishighspeed && ((total_length + TXDESC_SIZE) % 0x200) ==
 400              0) || ((!pdvobj->ishighspeed && ((total_length + TXDESC_SIZE) %
 401                                               0x40) == 0))) {
 402                 ptxdesc->txdw0 |= cpu_to_le32
 403                         (((TXDESC_SIZE + OFFSET_SZ + 8) << OFFSET_SHT) &
 404                          0x00ff0000);
 405                 /*32 bytes for TX Desc + 8 bytes pending*/
 406         } else {
 407                 ptxdesc->txdw0 |= cpu_to_le32
 408                         (((TXDESC_SIZE + OFFSET_SZ) << OFFSET_SHT) &
 409                          0x00ff0000);
 410                 /*default = 32 bytes for TX Desc*/
 411         }
 412         r8712_write_port(pxmitframe->padapter, RTL8712_DMA_H2CCMD,
 413                         total_length + TXDESC_SIZE, (u8 *)pxmitframe);
 414
 415         return _SUCCESS;
 416 }
 417
 418 #endif
 419
 420 static void update_txdesc(struct xmit_frame *pxmitframe, uint *pmem, int sz)
 421 {
 422         uint qsel;
 423         struct _adapter *padapter = pxmitframe->padapter;
 424         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 425         struct qos_priv *pqospriv = &pmlmepriv->qospriv;
 426         struct security_priv *psecuritypriv = &padapter->securitypriv;
 427         struct pkt_attrib *pattrib = &pxmitframe->attrib;
 428         struct tx_desc *ptxdesc = (struct tx_desc *)pmem;
 429         struct dvobj_priv *pdvobj = &padapter->dvobjpriv;
 430 #ifdef CONFIG_R8712_TX_AGGR
 431         struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 432 #endif
 433         u8 blnSetTxDescOffset;
 434         sint bmcst = IS_MCAST(pattrib->ra);
 435         struct ht_priv *phtpriv = &pmlmepriv->htpriv;
 436         struct tx_desc txdesc_mp;
 437
 438         memcpy(&txdesc_mp, ptxdesc, sizeof(struct tx_desc));
 439         memset(ptxdesc, 0, sizeof(struct tx_desc));
 440         /* offset 0 */
 441         ptxdesc->txdw0 |= cpu_to_le32(sz & 0x0000ffff);
 442         if (pdvobj->ishighspeed) {
 443                 if (((sz + TXDESC_SIZE) % 512) == 0)
 444                         blnSetTxDescOffset = 1;
 445                 else
 446                         blnSetTxDescOffset = 0;
 447         } else {
 448                 if (((sz + TXDESC_SIZE) % 64) == 0)
 449                         blnSetTxDescOffset = 1;
 450                 else
 451                         blnSetTxDescOffset = 0;
 452         }
 453         if (blnSetTxDescOffset) {
 454                 /* 32 bytes for TX Desc + 8 bytes pending */
 455                 ptxdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE + OFFSET_SZ + 8) <<
 456                               OFFSET_SHT) & 0x00ff0000);
 457         } else {
 458                 /* default = 32 bytes for TX Desc */
 459                 ptxdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE + OFFSET_SZ) <<
 460                                   OFFSET_SHT) & 0x00ff0000);
 461         }
 462         ptxdesc->txdw0 |= cpu_to_le32(OWN | FSG | LSG);
 463         if (pxmitframe->frame_tag == DATA_FRAMETAG) {
 464                 /* offset 4 */
 465                 ptxdesc->txdw1 |= cpu_to_le32((pattrib->mac_id) & 0x1f);
 466
 467 #ifdef CONFIG_R8712_TX_AGGR
 468                 /* dirty workaround, need to check if it is aggr cmd. */
 469                 if ((u8 *)pmem != (u8 *)pxmitframe->pxmitbuf->pbuf) {
 470                         ptxdesc->txdw0 |= cpu_to_le32
 471                                 ((0x3 << TYPE_SHT) & TYPE_MSK);
 472                         qsel = (uint)(pattrib->qsel & 0x0000001f);
 473                         if (qsel == 2)
 474                                 qsel = 0;
 475                         ptxdesc->txdw1 |= cpu_to_le32
 476                                 ((qsel << QSEL_SHT) & 0x00001f00);
 477                         ptxdesc->txdw2 = cpu_to_le32
 478                                 ((qsel << RTS_RC_SHT) & 0x001f0000);
 479                         ptxdesc->txdw6 |= cpu_to_le32
 480                                 ((0x5 << RSVD6_SHT) & RSVD6_MSK);
 481                 } else {
 482                         ptxdesc->txdw0 |= cpu_to_le32
 483                                 ((0x3 << TYPE_SHT) & TYPE_MSK);
 484                         ptxdesc->txdw1 |= cpu_to_le32
 485                                 ((0x13 << QSEL_SHT) & 0x00001f00);
 486                         qsel = (uint)(pattrib->qsel & 0x0000001f);
 487                         if (qsel == 2)
 488                                 qsel = 0;
 489                         ptxdesc->txdw2 = cpu_to_le32
 490                                 ((qsel << RTS_RC_SHT) & 0x0001f000);
 491                         ptxdesc->txdw7 |= cpu_to_le32
 492                                 (pcmdpriv->cmd_seq << 24);
 493                         pcmdpriv->cmd_seq++;
 494                 }
 495                 pattrib->qsel = 0x13;
 496 #else
 497                 qsel = (uint)(pattrib->qsel & 0x0000001f);
 498                 ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00);
 499 #endif
 500                 if (!pqospriv->qos_option)
 501                         ptxdesc->txdw1 |= cpu_to_le32(BIT(16));/*Non-QoS*/
 502                 if ((pattrib->encrypt > 0) && !pattrib->bswenc) {
 503                         switch (pattrib->encrypt) {     /*SEC_TYPE*/
 504                         case _WEP40_:
 505                         case _WEP104_:
 506                                 ptxdesc->txdw1 |= cpu_to_le32((0x01 << 22) &
 507                                                   0x00c00000);
 508                                 /*KEY_ID when WEP is used;*/
 509                                 ptxdesc->txdw1 |= cpu_to_le32((psecuritypriv->
 510                                                   PrivacyKeyIndex << 17) &
 511                                                   0x00060000);
 512                                 break;
 513                         case _TKIP_:
 514                         case _TKIP_WTMIC_:
 515                                 ptxdesc->txdw1 |= cpu_to_le32((0x02 << 22) &
 516                                                   0x00c00000);
 517                                 break;
 518                         case _AES_:
 519                                 ptxdesc->txdw1 |= cpu_to_le32((0x03 << 22) &
 520                                                   0x00c00000);
 521                                 break;
 522                         case _NO_PRIVACY_:
 523                         default:
 524                                 break;
 525                         }
 526                 }
 527                 /*offset 8*/
 528                 if (bmcst)
 529                         ptxdesc->txdw2 |= cpu_to_le32(BMC);
 530
 531                 /*offset 12*/
 532                 /* f/w will increase the seqnum by itself, driver pass the
 533                  * correct priority to fw
 534                  * fw will check the correct priority for increasing the
 535                  * seqnum per tid. about usb using 4-endpoint, qsel points out
 536                  * the correct mapping between AC&Endpoint,
 537                  * the purpose is that correct mapping lets the MAC release
 538                  * the AC Queue list correctly. */
 539                 ptxdesc->txdw3 = cpu_to_le32((pattrib->priority << SEQ_SHT) &
 540                                  0x0fff0000);
 541                 if ((pattrib->ether_type != 0x888e) &&
 542                     (pattrib->ether_type != 0x0806) &&
 543                     (pattrib->dhcp_pkt != 1)) {
 544                         /*Not EAP & ARP type data packet*/
 545                         if (phtpriv->ht_option == 1) { /*B/G/N Mode*/
 546                                 if (phtpriv->ampdu_enable != true)
 547                                         ptxdesc->txdw2 |= cpu_to_le32(BK);
 548                         }
 549                 } else {
 550                         /* EAP data packet and ARP packet.
 551                          * Use the 1M data rate to send the EAP/ARP packet.
 552                          * This will maybe make the handshake smooth.
 553                          */
 554                         /*driver uses data rate*/
 555                         ptxdesc->txdw4 = cpu_to_le32(0x80000000);
 556                         ptxdesc->txdw5 = cpu_to_le32(0x001f8000);/*1M*/
 557                 }
 558                 if (pattrib->pctrl == 1) { /* mp tx packets */
 559                         struct tx_desc *ptxdesc_mp;
 560
 561                         ptxdesc_mp = &txdesc_mp;
 562                         /* offset 8 */
 563                         ptxdesc->txdw2 = cpu_to_le32(ptxdesc_mp->txdw2);
 564                         if (bmcst)
 565                                 ptxdesc->txdw2 |= cpu_to_le32(BMC);
 566                         ptxdesc->txdw2 |= cpu_to_le32(BK);
 567                         /* offset 16 */
 568                         ptxdesc->txdw4 = cpu_to_le32(ptxdesc_mp->txdw4);
 569                         /* offset 20 */
 570                         ptxdesc->txdw5 = cpu_to_le32(ptxdesc_mp->txdw5);
 571                         pattrib->pctrl = 0;/* reset to zero; */
 572                 }
 573         } else if (pxmitframe->frame_tag == MGNT_FRAMETAG) {
 574                 /* offset 4 */
 575                 ptxdesc->txdw1 |= (0x05) & 0x1f;/*CAM_ID(MAC_ID), default=5;*/
 576                 qsel = (uint)(pattrib->qsel & 0x0000001f);
 577                 ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00);
 578                 ptxdesc->txdw1 |= cpu_to_le32(BIT(16));/* Non-QoS */
 579                 /* offset 8 */
 580                 if (bmcst)
 581                         ptxdesc->txdw2 |= cpu_to_le32(BMC);
 582                 /* offset 12 */
 583                 /* f/w will increase the seqnum by itself, driver pass the
 584                  * correct priority to fw
 585                  * fw will check the correct priority for increasing the seqnum
 586                  * per tid. about usb using 4-endpoint, qsel points out the
 587                  * correct mapping between AC&Endpoint,
 588                  * the purpose is that correct mapping let the MAC releases
 589                  * the AC Queue list correctly. */
 590                 ptxdesc->txdw3 = cpu_to_le32((pattrib->priority << SEQ_SHT) &
 591                                               0x0fff0000);
 592                 /* offset 16 */
 593                 ptxdesc->txdw4 = cpu_to_le32(0x80002040);/*gtest*/
 594                 /* offset 20 */
 595                 ptxdesc->txdw5 = cpu_to_le32(0x001f8000);/* gtest 1M */
 596         } else if (pxmitframe->frame_tag == TXAGG_FRAMETAG) {
 597                 /* offset 4 */
 598                 qsel = 0x13;
 599                 ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00);
 600         } else {
 601                 /* offset 4 */
 602                 qsel = (uint)(pattrib->priority & 0x0000001f);
 603                 ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00);
 604                 /*offset 8*/
 605                 /*offset 12*/
 606                 ptxdesc->txdw3 = cpu_to_le32((pattrib->seqnum << SEQ_SHT) &
 607                                               0x0fff0000);
 608                 /*offset 16*/
 609                 ptxdesc->txdw4 = cpu_to_le32(0x80002040);/*gtest*/
 610                 /*offset 20*/
 611                 ptxdesc->txdw5 = cpu_to_le32(0x001f9600);/*gtest*/
 612         }
 613 }
 614
 615 int r8712_xmitframe_complete(struct _adapter *padapter,
 616                              struct xmit_priv *pxmitpriv,
 617                              struct xmit_buf *pxmitbuf)
 618 {
 619         struct hw_xmit *phwxmits;
 620         sint hwentry;
 621         struct xmit_frame *pxmitframe = NULL;
 622 #ifdef CONFIG_R8712_TX_AGGR
 623         struct xmit_frame *p2ndxmitframe = NULL;
 624 #else
 625         int res = _SUCCESS, xcnt = 0;
 626 #endif
 627
 628         phwxmits = pxmitpriv->hwxmits;
 629         hwentry = pxmitpriv->hwxmit_entry;
 630         if (pxmitbuf == NULL) {
 631                 pxmitbuf = r8712_alloc_xmitbuf(pxmitpriv);
 632                 if (!pxmitbuf)
 633                         return false;
 634 #ifdef CONFIG_R8712_TX_AGGR
 635                 pxmitbuf->aggr_nr = 0;
 636 #endif
 637         }
 638         /* 1st frame dequeued */
 639         pxmitframe = dequeue_xframe_ex(pxmitpriv, phwxmits, hwentry);
 640         /* need to remember the 1st frame */
 641         if (pxmitframe != NULL) {
 642
 643 #ifdef CONFIG_R8712_TX_AGGR
 644                 /* 1. dequeue 2nd frame
 645                  * 2. aggr if 2nd xframe is dequeued, else dump directly
 646                  */
 647                 if (AGGR_NR_HIGH_BOUND > 1)
 648                         p2ndxmitframe = dequeue_xframe_ex(pxmitpriv, phwxmits,
 649                                                         hwentry);
 650                 if (pxmitframe->frame_tag != DATA_FRAMETAG) {
 651                         r8712_free_xmitbuf(pxmitpriv, pxmitbuf);
 652                         return false;
 653                 }
 654                 if (p2ndxmitframe != NULL)
 655                         if (p2ndxmitframe->frame_tag != DATA_FRAMETAG) {
 656                                 r8712_free_xmitbuf(pxmitpriv, pxmitbuf);
 657                                 return false;
 658                         }
 659                 r8712_xmitframe_aggr_1st(pxmitbuf, pxmitframe);
 660                 if (p2ndxmitframe != NULL) {
 661                         u16 total_length;
 662
 663                         total_length = r8712_xmitframe_aggr_next(
 664                                 pxmitbuf, p2ndxmitframe);
 665                         do {
 666                                 p2ndxmitframe = dequeue_xframe_ex(
 667                                         pxmitpriv, phwxmits, hwentry);
 668                                 if (p2ndxmitframe != NULL)
 669                                         total_length =
 670                                                 r8712_xmitframe_aggr_next(
 671                                                         pxmitbuf,
 672                                                         p2ndxmitframe);
 673                                 else
 674                                         break;
 675                         } while (total_length <= 0x1800 &&
 676                                 pxmitbuf->aggr_nr <= AGGR_NR_HIGH_BOUND);
 677                 }
 678                 if (pxmitbuf->aggr_nr > 0)
 679                         r8712_dump_aggr_xframe(pxmitbuf, pxmitframe);
 680
 681 #else
 682
 683                 xmitframe_xmitbuf_attach(pxmitframe, pxmitbuf);
 684                 if (pxmitframe->frame_tag == DATA_FRAMETAG) {
 685                         if (pxmitframe->attrib.priority <= 15)
 686                                 res = r8712_xmitframe_coalesce(padapter,
 687                                         pxmitframe->pkt, pxmitframe);
 688                         /* always return ndis_packet after
 689                          * r8712_xmitframe_coalesce */
 690                         r8712_xmit_complete(padapter, pxmitframe);
 691                 }
 692                 if (res == _SUCCESS)
 693                         dump_xframe(padapter, pxmitframe);
 694                 else
 695                         r8712_free_xmitframe_ex(pxmitpriv, pxmitframe);
 696                 xcnt++;
 697 #endif
 698
 699         } else { /* pxmitframe == NULL && p2ndxmitframe == NULL */
 700                 r8712_free_xmitbuf(pxmitpriv, pxmitbuf);
 701                 return false;
 702         }
 703         return true;
 704 }
 705
 706 static void dump_xframe(struct _adapter *padapter,
 707                         struct xmit_frame *pxmitframe)
 708 {
 709         int t, sz, w_sz;
 710         u8 *mem_addr;
 711         u32 ff_hwaddr;
 712         struct pkt_attrib *pattrib = &pxmitframe->attrib;
 713         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 714         struct security_priv *psecuritypriv = &padapter->securitypriv;
 715
 716         if (pxmitframe->attrib.ether_type != 0x0806) {
 717                 if (pxmitframe->attrib.ether_type != 0x888e)
 718                         r8712_issue_addbareq_cmd(padapter, pattrib->priority);
 719         }
 720         mem_addr = pxmitframe->buf_addr;
 721         for (t = 0; t < pattrib->nr_frags; t++) {
 722                 if (t != (pattrib->nr_frags - 1)) {
 723                         sz = pxmitpriv->frag_len;
 724                         sz = sz - 4 - (psecuritypriv->sw_encrypt ? 0 :
 725                              pattrib->icv_len);
 726                         pxmitframe->last[t] = 0;
 727                 } else {
 728                         sz = pattrib->last_txcmdsz;
 729                         pxmitframe->last[t] = 1;
 730                 }
 731                 update_txdesc(pxmitframe, (uint *)mem_addr, sz);
 732                 w_sz = sz + TXDESC_SIZE;
 733                 pxmitframe->mem_addr = mem_addr;
 734                 pxmitframe->bpending[t] = false;
 735                 ff_hwaddr = get_ff_hwaddr(pxmitframe);
 736 #ifdef CONFIG_R8712_TX_AGGR
 737                 r8712_write_port(padapter, RTL8712_DMA_H2CCMD, w_sz,
 738                                 (unsigned char *)pxmitframe);
 739 #else
 740                 r8712_write_port(padapter, ff_hwaddr, w_sz,
 741                            (unsigned char *)pxmitframe);
 742 #endif
 743                 mem_addr += w_sz;
 744                 mem_addr = (u8 *)RND4(((addr_t)(mem_addr)));
 745         }
 746 }
 747
 748 int r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe)
 749 {
 750         int res = _SUCCESS;
 751
 752         res = r8712_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
 753         pxmitframe->pkt = NULL;
 754         if (res == _SUCCESS)
 755                 dump_xframe(padapter, pxmitframe);
 756         return res;
 757 }
 758
 759 int r8712_xmit_enqueue(struct _adapter *padapter, struct xmit_frame *pxmitframe)
 760 {
 761         if (r8712_xmit_classifier(padapter, pxmitframe) == _FAIL) {
 762                 pxmitframe->pkt = NULL;
 763                 return _FAIL;
 764         }
 765         return _SUCCESS;
 766 }