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 = (struct dvobj_priv *)&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)) == false) {
 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)) == false) {
 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 = (struct dvobj_priv *)&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)&0x00ff0000);
 270         ptx_desc->txdw0 |= cpu_to_le32(OWN | FSG | LSG);
 271
 272         /* dw1 */
 273         ptx_desc->txdw1 |= cpu_to_le32((0x13<<QSEL_SHT)&0x00001f00);
 274
 275         return _SUCCESS;
 276 }
 277
 278 u8 r8712_construct_txaggr_cmd_hdr(struct xmit_buf *pxmitbuf)
 279 {
 280         struct xmit_frame *pxmitframe = (struct xmit_frame *)
 281                 pxmitbuf->priv_data;
 282         struct _adapter *padapter = pxmitframe->padapter;
 283         struct cmd_priv *pcmdpriv = &(padapter->cmdpriv);
 284         struct cmd_hdr *pcmd_hdr = (struct cmd_hdr  *)
 285                 (pxmitbuf->pbuf + TXDESC_SIZE);
 286
 287         /* Fill up Cmd Header for USB FW Tx Aggregation.*/
 288         /* dw0 */
 289         pcmd_hdr->cmd_dw0 = cpu_to_le32((GEN_CMD_CODE(_AMSDU_TO_AMPDU) << 16) |
 290                                         (pcmdpriv->cmd_seq << 24));
 291         pcmdpriv->cmd_seq++;
 292
 293         return _SUCCESS;
 294 }
 295
 296 u8 r8712_append_mpdu_unit(struct xmit_buf *pxmitbuf,
 297                         struct xmit_frame *pxmitframe)
 298 {
 299         struct _adapter *padapter = pxmitframe->padapter;
 300         struct tx_desc *ptx_desc = (struct tx_desc *)pxmitbuf->pbuf;
 301         int last_txcmdsz = 0;
 302         int padding_sz = 0;
 303
 304         /* 802.3->802.11 convertor */
 305         r8712_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
 306         /* free skb struct */
 307         r8712_xmit_complete(padapter, pxmitframe);
 308         if (pxmitframe->attrib.ether_type != 0x0806) {
 309                 if ((pxmitframe->attrib.ether_type != 0x888e) &&
 310                         (pxmitframe->attrib.dhcp_pkt != 1)) {
 311                         r8712_issue_addbareq_cmd(padapter,
 312                                         pxmitframe->attrib.priority);
 313                 }
 314         }
 315         pxmitframe->last[0] = 1;
 316         update_txdesc(pxmitframe, (uint *)(pxmitframe->buf_addr),
 317                 pxmitframe->attrib.last_txcmdsz);
 318         /*padding zero */
 319         last_txcmdsz = pxmitframe->attrib.last_txcmdsz;
 320         padding_sz = (8 - (last_txcmdsz % 8));
 321         if ((last_txcmdsz % 8) != 0) {
 322                 int i;
 323
 324                 for (i = 0; i < padding_sz; i++)
 325                         *(pxmitframe->buf_addr+TXDESC_SIZE+last_txcmdsz+i) = 0;
 326         }
 327         /* Add the new mpdu's length */
 328         ptx_desc->txdw0 = cpu_to_le32((ptx_desc->txdw0&0xffff0000) |
 329                 ((ptx_desc->txdw0&0x0000ffff)+
 330                         ((TXDESC_SIZE+last_txcmdsz+padding_sz)&0x0000ffff)));
 331
 332         return _SUCCESS;
 333 }
 334
 335
 336 u8 r8712_xmitframe_aggr_1st(struct xmit_buf *pxmitbuf,
 337                         struct xmit_frame *pxmitframe)
 338 {
 339         /* linux complete context doesn't need to protect */
 340         pxmitframe->pxmitbuf = pxmitbuf;
 341         pxmitbuf->priv_data = pxmitframe;
 342         pxmitframe->pxmit_urb[0] = pxmitbuf->pxmit_urb[0];
 343         /* buffer addr assoc */
 344         pxmitframe->buf_addr = pxmitbuf->pbuf+TXDESC_SIZE+CMD_HDR_SZ;
 345         /*RTL8712_DMA_H2CCMD */
 346         r8712_construct_txaggr_cmd_desc(pxmitbuf);
 347         r8712_construct_txaggr_cmd_hdr(pxmitbuf);
 348         if (r8712_append_mpdu_unit(pxmitbuf, pxmitframe) == _SUCCESS)
 349                 pxmitbuf->aggr_nr = 1;
 350
 351         return _SUCCESS;
 352 }
 353
 354 u16 r8712_xmitframe_aggr_next(struct xmit_buf *pxmitbuf,
 355                         struct xmit_frame *pxmitframe)
 356 {
 357         pxmitframe->pxmitbuf = pxmitbuf;
 358         pxmitbuf->priv_data = pxmitframe;
 359         pxmitframe->pxmit_urb[0] = pxmitbuf->pxmit_urb[0];
 360         /* buffer addr assoc */
 361         pxmitframe->buf_addr = pxmitbuf->pbuf + TXDESC_SIZE +
 362                 (((struct tx_desc *)pxmitbuf->pbuf)->txdw0 & 0x0000ffff);
 363         if (r8712_append_mpdu_unit(pxmitbuf, pxmitframe) == _SUCCESS) {
 364                 r8712_free_xmitframe_ex(&pxmitframe->padapter->xmitpriv,
 365                                         pxmitframe);
 366                 pxmitbuf->aggr_nr++;
 367         }
 368
 369         return TXDESC_SIZE +
 370                 (((struct tx_desc *)pxmitbuf->pbuf)->txdw0 & 0x0000ffff);
 371 }
 372
 373 u8 r8712_dump_aggr_xframe(struct xmit_buf *pxmitbuf,
 374                         struct xmit_frame *pxmitframe)
 375 {
 376         struct _adapter *padapter = pxmitframe->padapter;
 377         struct dvobj_priv *pdvobj = (struct dvobj_priv *) &padapter->dvobjpriv;
 378         struct tx_desc *ptxdesc = (struct tx_desc *)pxmitbuf->pbuf;
 379         struct cmd_hdr *pcmd_hdr = (struct cmd_hdr *)
 380                 (pxmitbuf->pbuf + TXDESC_SIZE);
 381         u16 total_length = (u16) (ptxdesc->txdw0 & 0xffff);
 382
 383         /* use 1st xmitframe as media */
 384         xmitframe_xmitbuf_attach(pxmitframe, pxmitbuf);
 385         pcmd_hdr->cmd_dw0 = cpu_to_le32(((total_length-CMD_HDR_SZ)&0x0000ffff)|
 386                                         (pcmd_hdr->cmd_dw0&0xffff0000));
 387
 388         /* urb length in cmd_dw1 */
 389         pcmd_hdr->cmd_dw1 = cpu_to_le32((pxmitbuf->aggr_nr & 0xff)|
 390                                         ((total_length+TXDESC_SIZE) << 16));
 391         pxmitframe->last[0] = 1;
 392         pxmitframe->bpending[0] = false;
 393         pxmitframe->mem_addr = pxmitbuf->pbuf;
 394
 395         if ((pdvobj->ishighspeed && ((total_length+TXDESC_SIZE)%0x200) == 0) ||
 396                 ((!pdvobj->ishighspeed &&
 397                         ((total_length+TXDESC_SIZE)%0x40) == 0))) {
 398                 ptxdesc->txdw0 |= cpu_to_le32
 399                         (((TXDESC_SIZE+OFFSET_SZ+8)<<OFFSET_SHT)&0x00ff0000);
 400                 /*32 bytes for TX Desc + 8 bytes pending*/
 401         } else {
 402                 ptxdesc->txdw0 |= cpu_to_le32
 403                         (((TXDESC_SIZE+OFFSET_SZ)<<OFFSET_SHT)&0x00ff0000);
 404                 /*default = 32 bytes for TX Desc*/
 405         }
 406         r8712_write_port(pxmitframe->padapter, RTL8712_DMA_H2CCMD,
 407                         total_length+TXDESC_SIZE, (u8 *)pxmitframe);
 408
 409         return _SUCCESS;
 410 }
 411
 412 #endif
 413
 414 static void update_txdesc(struct xmit_frame *pxmitframe, uint *pmem, int sz)
 415 {
 416         uint qsel;
 417         struct _adapter *padapter = pxmitframe->padapter;
 418         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 419         struct qos_priv *pqospriv = &pmlmepriv->qospriv;
 420         struct security_priv *psecuritypriv = &padapter->securitypriv;
 421         struct pkt_attrib *pattrib = &pxmitframe->attrib;
 422         struct tx_desc *ptxdesc = (struct tx_desc *)pmem;
 423         struct dvobj_priv *pdvobj = (struct dvobj_priv *)&padapter->dvobjpriv;
 424 #ifdef CONFIG_R8712_TX_AGGR
 425         struct cmd_priv *pcmdpriv = (struct cmd_priv *)&padapter->cmdpriv;
 426 #endif
 427         u8 blnSetTxDescOffset;
 428         sint bmcst = IS_MCAST(pattrib->ra);
 429         struct ht_priv *phtpriv = &pmlmepriv->htpriv;
 430         struct tx_desc txdesc_mp;
 431
 432         memcpy(&txdesc_mp, ptxdesc, sizeof(struct tx_desc));
 433         memset(ptxdesc, 0, sizeof(struct tx_desc));
 434         /* offset 0 */
 435         ptxdesc->txdw0 |= cpu_to_le32(sz&0x0000ffff);
 436         if (pdvobj->ishighspeed) {
 437                 if (((sz + TXDESC_SIZE) % 512) == 0)
 438                         blnSetTxDescOffset = 1;
 439                 else
 440                         blnSetTxDescOffset = 0;
 441         } else {
 442                 if (((sz + TXDESC_SIZE) % 64) == 0)
 443                         blnSetTxDescOffset = 1;
 444                 else
 445                         blnSetTxDescOffset = 0;
 446         }
 447         if (blnSetTxDescOffset) {
 448                 /* 32 bytes for TX Desc + 8 bytes pending */
 449                 ptxdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE+OFFSET_SZ + 8) <<
 450                               OFFSET_SHT) & 0x00ff0000);
 451         } else {
 452                 /* default = 32 bytes for TX Desc */
 453                 ptxdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE+OFFSET_SZ) <<
 454                                   OFFSET_SHT) & 0x00ff0000);
 455         }
 456         ptxdesc->txdw0 |= cpu_to_le32(OWN | FSG | LSG);
 457         if (pxmitframe->frame_tag == DATA_FRAMETAG) {
 458                 /* offset 4 */
 459                 ptxdesc->txdw1 |= cpu_to_le32((pattrib->mac_id)&0x1f);
 460
 461 #ifdef CONFIG_R8712_TX_AGGR
 462                 /* dirty workaround, need to check if it is aggr cmd. */
 463                 if ((u8 *)pmem != (u8 *)pxmitframe->pxmitbuf->pbuf) {
 464                         ptxdesc->txdw0 |= cpu_to_le32
 465                                 ((0x3 << TYPE_SHT)&TYPE_MSK);
 466                         qsel = (uint)(pattrib->qsel & 0x0000001f);
 467                         if (qsel == 2)
 468                                 qsel = 0;
 469                         ptxdesc->txdw1 |= cpu_to_le32
 470                                 ((qsel << QSEL_SHT) & 0x00001f00);
 471                         ptxdesc->txdw2 = cpu_to_le32
 472                                 ((qsel << RTS_RC_SHT)&0x001f0000);
 473                         ptxdesc->txdw6 |= cpu_to_le32
 474                                 ((0x5 << RSVD6_SHT)&RSVD6_MSK);
 475                 } else {
 476                         ptxdesc->txdw0 |= cpu_to_le32
 477                                 ((0x3 << TYPE_SHT)&TYPE_MSK);
 478                         ptxdesc->txdw1 |= cpu_to_le32
 479                                 ((0x13 << QSEL_SHT) & 0x00001f00);
 480                         qsel = (uint)(pattrib->qsel & 0x0000001f);
 481                         if (qsel == 2)
 482                                 qsel = 0;
 483                         ptxdesc->txdw2 = cpu_to_le32
 484                                 ((qsel << RTS_RC_SHT)&0x0001f000);
 485                         ptxdesc->txdw7 |= cpu_to_le32
 486                                 (pcmdpriv->cmd_seq << 24);
 487                         pcmdpriv->cmd_seq++;
 488                 }
 489                 pattrib->qsel = 0x13;
 490 #else
 491                 qsel = (uint)(pattrib->qsel & 0x0000001f);
 492                 ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00);
 493 #endif
 494                 if (!pqospriv->qos_option)
 495                         ptxdesc->txdw1 |= cpu_to_le32(BIT(16));/*Non-QoS*/
 496                 if ((pattrib->encrypt > 0) && !pattrib->bswenc) {
 497                         switch (pattrib->encrypt) {     /*SEC_TYPE*/
 498                         case _WEP40_:
 499                         case _WEP104_:
 500                                 ptxdesc->txdw1 |= cpu_to_le32((0x01 << 22) &
 501                                                   0x00c00000);
 502                                 /*KEY_ID when WEP is used;*/
 503                                 ptxdesc->txdw1 |= cpu_to_le32((psecuritypriv->
 504                                                   PrivacyKeyIndex << 17) &
 505                                                   0x00060000);
 506                                 break;
 507                         case _TKIP_:
 508                         case _TKIP_WTMIC_:
 509                                 ptxdesc->txdw1 |= cpu_to_le32((0x02 << 22) &
 510                                                   0x00c00000);
 511                                 break;
 512                         case _AES_:
 513                                 ptxdesc->txdw1 |= cpu_to_le32((0x03 << 22) &
 514                                                   0x00c00000);
 515                                 break;
 516                         case _NO_PRIVACY_:
 517                         default:
 518                                 break;
 519                         }
 520                 }
 521                 /*offset 8*/
 522                 if (bmcst)
 523                         ptxdesc->txdw2 |= cpu_to_le32(BMC);
 524
 525                 /*offset 12*/
 526                 /* f/w will increase the seqnum by itself, driver pass the
 527                  * correct priority to fw
 528                  * fw will check the correct priority for increasing the
 529                  * seqnum per tid. about usb using 4-endpoint, qsel points out
 530                  * the correct mapping between AC&Endpoint,
 531                  * the purpose is that correct mapping lets the MAC release
 532                  * the AC Queue list correctly. */
 533                 ptxdesc->txdw3 = cpu_to_le32((pattrib->priority << SEQ_SHT) &
 534                                  0x0fff0000);
 535                 if ((pattrib->ether_type != 0x888e) &&
 536                     (pattrib->ether_type != 0x0806) &&
 537                     (pattrib->dhcp_pkt != 1)) {
 538                         /*Not EAP & ARP type data packet*/
 539                         if (phtpriv->ht_option == 1) { /*B/G/N Mode*/
 540                                 if (phtpriv->ampdu_enable != true)
 541                                         ptxdesc->txdw2 |= cpu_to_le32(BK);
 542                         }
 543                 } else {
 544                         /* EAP data packet and ARP packet.
 545                          * Use the 1M data rate to send the EAP/ARP packet.
 546                          * This will maybe make the handshake smooth.
 547                          */
 548                         /*driver uses data rate*/
 549                         ptxdesc->txdw4 = cpu_to_le32(0x80000000);
 550                         ptxdesc->txdw5 = cpu_to_le32(0x001f8000);/*1M*/
 551                 }
 552                 if (pattrib->pctrl == 1) { /* mp tx packets */
 553                         struct tx_desc *ptxdesc_mp;
 554
 555                         ptxdesc_mp = &txdesc_mp;
 556                         /* offset 8 */
 557                         ptxdesc->txdw2 = cpu_to_le32(ptxdesc_mp->txdw2);
 558                         if (bmcst)
 559                                 ptxdesc->txdw2 |= cpu_to_le32(BMC);
 560                         ptxdesc->txdw2 |= cpu_to_le32(BK);
 561                         /* offset 16 */
 562                         ptxdesc->txdw4 = cpu_to_le32(ptxdesc_mp->txdw4);
 563                         /* offset 20 */
 564                         ptxdesc->txdw5 = cpu_to_le32(ptxdesc_mp->txdw5);
 565                         pattrib->pctrl = 0;/* reset to zero; */
 566                 }
 567         } else if (pxmitframe->frame_tag == MGNT_FRAMETAG) {
 568                 /* offset 4 */
 569                 ptxdesc->txdw1 |= (0x05) & 0x1f;/*CAM_ID(MAC_ID), default=5;*/
 570                 qsel = (uint)(pattrib->qsel & 0x0000001f);
 571                 ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00);
 572                 ptxdesc->txdw1 |= cpu_to_le32(BIT(16));/* Non-QoS */
 573                 /* offset 8 */
 574                 if (bmcst)
 575                         ptxdesc->txdw2 |= cpu_to_le32(BMC);
 576                 /* offset 12 */
 577                 /* f/w will increase the seqnum by itself, driver pass the
 578                  * correct priority to fw
 579                  * fw will check the correct priority for increasing the seqnum
 580                  * per tid. about usb using 4-endpoint, qsel points out the
 581                  * correct mapping between AC&Endpoint,
 582                  * the purpose is that correct mapping let the MAC releases
 583                  * the AC Queue list correctly. */
 584                 ptxdesc->txdw3 = cpu_to_le32((pattrib->priority << SEQ_SHT) &
 585                                               0x0fff0000);
 586                 /* offset 16 */
 587                 ptxdesc->txdw4 = cpu_to_le32(0x80002040);/*gtest*/
 588                 /* offset 20 */
 589                 ptxdesc->txdw5 = cpu_to_le32(0x001f8000);/* gtest 1M */
 590         } else if (pxmitframe->frame_tag == TXAGG_FRAMETAG) {
 591                 /* offset 4 */
 592                 qsel = 0x13;
 593                 ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00);
 594         } else {
 595                 /* offset 4 */
 596                 qsel = (uint)(pattrib->priority&0x0000001f);
 597                 ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00);
 598                 /*offset 8*/
 599                 /*offset 12*/
 600                 ptxdesc->txdw3 = cpu_to_le32((pattrib->seqnum << SEQ_SHT) &
 601                                               0x0fff0000);
 602                 /*offset 16*/
 603                 ptxdesc->txdw4 = cpu_to_le32(0x80002040);/*gtest*/
 604                 /*offset 20*/
 605                 ptxdesc->txdw5 = cpu_to_le32(0x001f9600);/*gtest*/
 606         }
 607 }
 608
 609 int r8712_xmitframe_complete(struct _adapter *padapter,
 610                              struct xmit_priv *pxmitpriv,
 611                              struct xmit_buf *pxmitbuf)
 612 {
 613         struct hw_xmit *phwxmits;
 614         sint hwentry;
 615         struct xmit_frame *pxmitframe = NULL;
 616 #ifdef CONFIG_R8712_TX_AGGR
 617         struct xmit_frame *p2ndxmitframe = NULL;
 618 #else
 619         int res = _SUCCESS, xcnt = 0;
 620 #endif
 621
 622         phwxmits = pxmitpriv->hwxmits;
 623         hwentry = pxmitpriv->hwxmit_entry;
 624         if (pxmitbuf == NULL) {
 625                 pxmitbuf = r8712_alloc_xmitbuf(pxmitpriv);
 626                 if (!pxmitbuf)
 627                         return false;
 628 #ifdef CONFIG_R8712_TX_AGGR
 629                 pxmitbuf->aggr_nr = 0;
 630 #endif
 631         }
 632         /* 1st frame dequeued */
 633         pxmitframe = dequeue_xframe_ex(pxmitpriv, phwxmits, hwentry);
 634         /* need to remember the 1st frame */
 635         if (pxmitframe != NULL) {
 636
 637 #ifdef CONFIG_R8712_TX_AGGR
 638                 /* 1. dequeue 2nd frame
 639                  * 2. aggr if 2nd xframe is dequeued, else dump directly
 640                  */
 641                 if (AGGR_NR_HIGH_BOUND > 1)
 642                         p2ndxmitframe = dequeue_xframe_ex(pxmitpriv, phwxmits,
 643                                                         hwentry);
 644                 if (pxmitframe->frame_tag != DATA_FRAMETAG) {
 645                         r8712_free_xmitbuf(pxmitpriv, pxmitbuf);
 646                         return false;
 647                 }
 648                 if (p2ndxmitframe != NULL)
 649                         if (p2ndxmitframe->frame_tag != DATA_FRAMETAG) {
 650                                 r8712_free_xmitbuf(pxmitpriv, pxmitbuf);
 651                                 return false;
 652                         }
 653                 r8712_xmitframe_aggr_1st(pxmitbuf, pxmitframe);
 654                 if (p2ndxmitframe != NULL) {
 655                         u16 total_length;
 656
 657                         total_length = r8712_xmitframe_aggr_next(
 658                                 pxmitbuf, p2ndxmitframe);
 659                         do {
 660                                 p2ndxmitframe = dequeue_xframe_ex(
 661                                         pxmitpriv, phwxmits, hwentry);
 662                                 if (p2ndxmitframe != NULL)
 663                                         total_length =
 664                                                 r8712_xmitframe_aggr_next(
 665                                                         pxmitbuf,
 666                                                         p2ndxmitframe);
 667                                 else
 668                                         break;
 669                         } while (total_length <= 0x1800 &&
 670                                 pxmitbuf->aggr_nr <= AGGR_NR_HIGH_BOUND);
 671                 }
 672                 if (pxmitbuf->aggr_nr > 0)
 673                         r8712_dump_aggr_xframe(pxmitbuf, pxmitframe);
 674
 675 #else
 676
 677                 xmitframe_xmitbuf_attach(pxmitframe, pxmitbuf);
 678                 if (pxmitframe->frame_tag == DATA_FRAMETAG) {
 679                         if (pxmitframe->attrib.priority <= 15)
 680                                 res = r8712_xmitframe_coalesce(padapter,
 681                                         pxmitframe->pkt, pxmitframe);
 682                         /* always return ndis_packet after
 683                          * r8712_xmitframe_coalesce */
 684                         r8712_xmit_complete(padapter, pxmitframe);
 685                 }
 686                 if (res == _SUCCESS)
 687                         dump_xframe(padapter, pxmitframe);
 688                 else
 689                         r8712_free_xmitframe_ex(pxmitpriv, pxmitframe);
 690                 xcnt++;
 691 #endif
 692
 693         } else { /* pxmitframe == NULL && p2ndxmitframe == NULL */
 694                 r8712_free_xmitbuf(pxmitpriv, pxmitbuf);
 695                 return false;
 696         }
 697         return true;
 698 }
 699
 700 static void dump_xframe(struct _adapter *padapter,
 701                         struct xmit_frame *pxmitframe)
 702 {
 703         int t, sz, w_sz;
 704         u8 *mem_addr;
 705         u32 ff_hwaddr;
 706         struct pkt_attrib *pattrib = &pxmitframe->attrib;
 707         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 708         struct security_priv *psecuritypriv = &padapter->securitypriv;
 709
 710         if (pxmitframe->attrib.ether_type != 0x0806) {
 711                 if (pxmitframe->attrib.ether_type != 0x888e)
 712                         r8712_issue_addbareq_cmd(padapter, pattrib->priority);
 713         }
 714         mem_addr = pxmitframe->buf_addr;
 715         for (t = 0; t < pattrib->nr_frags; t++) {
 716                 if (t != (pattrib->nr_frags - 1)) {
 717                         sz = pxmitpriv->frag_len;
 718                         sz = sz - 4 - (psecuritypriv->sw_encrypt ? 0 :
 719                              pattrib->icv_len);
 720                         pxmitframe->last[t] = 0;
 721                 } else {
 722                         sz = pattrib->last_txcmdsz;
 723                         pxmitframe->last[t] = 1;
 724                 }
 725                 update_txdesc(pxmitframe, (uint *)mem_addr, sz);
 726                 w_sz = sz + TXDESC_SIZE;
 727                 pxmitframe->mem_addr = mem_addr;
 728                 pxmitframe->bpending[t] = false;
 729                 ff_hwaddr = get_ff_hwaddr(pxmitframe);
 730 #ifdef CONFIG_R8712_TX_AGGR
 731                 r8712_write_port(padapter, RTL8712_DMA_H2CCMD, w_sz,
 732                                 (unsigned char *)pxmitframe);
 733 #else
 734                 r8712_write_port(padapter, ff_hwaddr, w_sz,
 735                            (unsigned char *)pxmitframe);
 736 #endif
 737                 mem_addr += w_sz;
 738                 mem_addr = (u8 *)RND4(((addr_t)(mem_addr)));
 739         }
 740 }
 741
 742 int r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe)
 743 {
 744         int res = _SUCCESS;
 745
 746         res = r8712_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
 747         pxmitframe->pkt = NULL;
 748         if (res == _SUCCESS)
 749                 dump_xframe(padapter, pxmitframe);
 750         return res;
 751 }
 752
 753 int r8712_xmit_enqueue(struct _adapter *padapter, struct xmit_frame *pxmitframe)
 754 {
 755         if (r8712_xmit_classifier(padapter, pxmitframe) == _FAIL) {
 756                 pxmitframe->pkt = NULL;
 757                 return _FAIL;
 758         }
 759         return _SUCCESS;
 760 }