git.oblomov.eu Git - linux-2.6/blob - drivers/staging/winbond/mds.c

   1 #include "ds_tkip.h"
   2 #include "gl_80211.h"
   3 #include "mds_f.h"
   4 #include "mlmetxrx_f.h"
   5 #include "mto_f.h"
   6 #include "os_common.h"
   7 #include "wbhal_f.h"
   8 #include "wblinux_f.h"
   9
  10 unsigned char
  11 Mds_initial(struct wbsoft_priv * adapter)
  12 {
  13         PMDS pMds = &adapter->Mds;
  14
  15         pMds->TxPause = false;
  16         pMds->TxRTSThreshold = DEFAULT_RTSThreshold;
  17         pMds->TxFragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD;
  18
  19         return hal_get_tx_buffer( &adapter->sHwData, &pMds->pTxBuffer );
  20 }
  21
  22 void
  23 Mds_Destroy(struct wbsoft_priv * adapter)
  24 {
  25 }
  26
  27 static void Mds_DurationSet(struct wbsoft_priv *adapter,  PDESCRIPTOR pDes,  u8 *buffer)
  28 {
  29         PT00_DESCRIPTOR pT00;
  30         PT01_DESCRIPTOR pT01;
  31         u16     Duration, NextBodyLen, OffsetSize;
  32         u8      Rate, i;
  33         unsigned char   CTS_on = false, RTS_on = false;
  34         PT00_DESCRIPTOR pNextT00;
  35         u16 BodyLen = 0;
  36         unsigned char boGroupAddr = false;
  37
  38         OffsetSize = pDes->FragmentThreshold + 32 + 3;
  39         OffsetSize &= ~0x03;
  40         Rate = pDes->TxRate >> 1;
  41         if (!Rate)
  42                 Rate = 1;
  43
  44         pT00 = (PT00_DESCRIPTOR)buffer;
  45         pT01 = (PT01_DESCRIPTOR)(buffer+4);
  46         pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize);
  47
  48         if( buffer[ DOT_11_DA_OFFSET+8 ] & 0x1 ) // +8 for USB hdr
  49                 boGroupAddr = true;
  50
  51         //========================================
  52         // Set RTS/CTS mechanism
  53         //========================================
  54         if (!boGroupAddr)
  55         {
  56                 //NOTE : If the protection mode is enabled and the MSDU will be fragmented,
  57                 //               the tx rates of MPDUs will all be DSSS rates. So it will not use
  58                 //               CTS-to-self in this case. CTS-To-self will only be used when without
  59                 //               fragmentation. -- 20050112
  60                 BodyLen = (u16)pT00->T00_frame_length;  //include 802.11 header
  61                 BodyLen += 4;   //CRC
  62
  63                 if( BodyLen >= CURRENT_RTS_THRESHOLD )
  64                         RTS_on = true; // Using RTS
  65                 else
  66                 {
  67                         if( pT01->T01_modulation_type ) // Is using OFDM
  68                         {
  69                                 if( CURRENT_PROTECT_MECHANISM ) // Is using protect
  70                                         CTS_on = true; // Using CTS
  71                         }
  72                 }
  73         }
  74
  75         if( RTS_on || CTS_on )
  76         {
  77                 if( pT01->T01_modulation_type) // Is using OFDM
  78                 {
  79                         //CTS duration
  80                         // 2 SIFS + DATA transmit time + 1 ACK
  81                         // ACK Rate : 24 Mega bps
  82                         // ACK frame length = 14 bytes
  83                         Duration = 2*DEFAULT_SIFSTIME +
  84                                            2*PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION +
  85                                            ((BodyLen*8 + 22 + Rate*4 - 1)/(Rate*4))*Tsym +
  86                                            ((112 + 22 + 95)/96)*Tsym;
  87                 }
  88                 else    //DSSS
  89                 {
  90                         //CTS duration
  91                         // 2 SIFS + DATA transmit time + 1 ACK
  92                         // Rate : ?? Mega bps
  93                         // ACK frame length = 14 bytes
  94                         if( pT01->T01_plcp_header_length ) //long preamble
  95                                 Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*2;
  96                         else
  97                                 Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*2;
  98
  99                         Duration += ( ((BodyLen + 14)*8 + Rate-1) / Rate +
 100                                                 DEFAULT_SIFSTIME*2 );
 101                 }
 102
 103                 if( RTS_on )
 104                 {
 105                         if( pT01->T01_modulation_type ) // Is using OFDM
 106                         {
 107                                 //CTS + 1 SIFS + CTS duration
 108                                 //CTS Rate : 24 Mega bps
 109                                 //CTS frame length = 14 bytes
 110                                 Duration += (DEFAULT_SIFSTIME +
 111                                                                 PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION +
 112                                                                 ((112 + 22 + 95)/96)*Tsym);
 113                         }
 114                         else
 115                         {
 116                                 //CTS + 1 SIFS + CTS duration
 117                                 //CTS Rate : ?? Mega bps
 118                                 //CTS frame length = 14 bytes
 119                                 if( pT01->T01_plcp_header_length ) //long preamble
 120                                         Duration += LONG_PREAMBLE_PLUS_PLCPHEADER_TIME;
 121                                 else
 122                                         Duration += SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME;
 123
 124                                 Duration += ( ((112 + Rate-1) / Rate) + DEFAULT_SIFSTIME );
 125                         }
 126                 }
 127
 128                 // Set the value into USB descriptor
 129                 pT01->T01_add_rts = RTS_on ? 1 : 0;
 130                 pT01->T01_add_cts = CTS_on ? 1 : 0;
 131                 pT01->T01_rts_cts_duration = Duration;
 132         }
 133
 134         //=====================================
 135         // Fill the more fragment descriptor
 136         //=====================================
 137         if( boGroupAddr )
 138                 Duration = 0;
 139         else
 140         {
 141                 for( i=pDes->FragmentCount-1; i>0; i-- )
 142                 {
 143                         NextBodyLen = (u16)pNextT00->T00_frame_length;
 144                         NextBodyLen += 4;       //CRC
 145
 146                         if( pT01->T01_modulation_type )
 147                         {
 148                                 //OFDM
 149                                 // data transmit time + 3 SIFS + 2 ACK
 150                                 // Rate : ??Mega bps
 151                                 // ACK frame length = 14 bytes, tx rate = 24M
 152                                 Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION * 3;
 153                                 Duration += (((NextBodyLen*8 + 22 + Rate*4 - 1)/(Rate*4)) * Tsym +
 154                                                         (((2*14)*8 + 22 + 95)/96)*Tsym +
 155                                                         DEFAULT_SIFSTIME*3);
 156                         }
 157                         else
 158                         {
 159                                 //DSSS
 160                                 // data transmit time + 2 ACK + 3 SIFS
 161                                 // Rate : ??Mega bps
 162                                 // ACK frame length = 14 bytes
 163                                 //TODO :
 164                                 if( pT01->T01_plcp_header_length ) //long preamble
 165                                         Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*3;
 166                                 else
 167                                         Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*3;
 168
 169                                 Duration += ( ((NextBodyLen + (2*14))*8 + Rate-1) / Rate +
 170                                                         DEFAULT_SIFSTIME*3 );
 171                         }
 172
 173                         ((u16 *)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
 174
 175                         //----20061009 add by anson's endian
 176                         pNextT00->value = cpu_to_le32(pNextT00->value);
 177                         pT01->value = cpu_to_le32( pT01->value );
 178                         //----end 20061009 add by anson's endian
 179
 180                         buffer += OffsetSize;
 181                         pT01 = (PT01_DESCRIPTOR)(buffer+4);
 182                         if (i != 1)     //The last fragment will not have the next fragment
 183                                 pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize);
 184                 }
 185
 186                 //=====================================
 187                 // Fill the last fragment descriptor
 188                 //=====================================
 189                 if( pT01->T01_modulation_type )
 190                 {
 191                         //OFDM
 192                         // 1 SIFS + 1 ACK
 193                         // Rate : 24 Mega bps
 194                         // ACK frame length = 14 bytes
 195                         Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION;
 196                         //The Tx rate of ACK use 24M
 197                         Duration += (((112 + 22 + 95)/96)*Tsym + DEFAULT_SIFSTIME );
 198                 }
 199                 else
 200                 {
 201                         // DSSS
 202                         // 1 ACK + 1 SIFS
 203                         // Rate : ?? Mega bps
 204                         // ACK frame length = 14 bytes(112 bits)
 205                         if( pT01->T01_plcp_header_length ) //long preamble
 206                                 Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME;
 207                         else
 208                                 Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME;
 209
 210                         Duration += ( (112 + Rate-1)/Rate +     DEFAULT_SIFSTIME );
 211                 }
 212         }
 213
 214         ((u16 *)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
 215         pT00->value = cpu_to_le32(pT00->value);
 216         pT01->value = cpu_to_le32(pT01->value);
 217         //--end 20061009 add
 218
 219 }
 220
 221 // The function return the 4n size of usb pk
 222 static u16 Mds_BodyCopy(struct wbsoft_priv *adapter, PDESCRIPTOR pDes, u8 *TargetBuffer)
 223 {
 224         PT00_DESCRIPTOR pT00;
 225         PMDS    pMds = &adapter->Mds;
 226         u8      *buffer;
 227         u8      *src_buffer;
 228         u8      *pctmp;
 229         u16     Size = 0;
 230         u16     SizeLeft, CopySize, CopyLeft, stmp;
 231         u8      buf_index, FragmentCount = 0;
 232
 233
 234         // Copy fragment body
 235         buffer = TargetBuffer; // shift 8B usb + 24B 802.11
 236         SizeLeft = pDes->buffer_total_size;
 237         buf_index = pDes->buffer_start_index;
 238
 239         pT00 = (PT00_DESCRIPTOR)buffer;
 240         while (SizeLeft) {
 241                 pT00 = (PT00_DESCRIPTOR)buffer;
 242                 CopySize = SizeLeft;
 243                 if (SizeLeft > pDes->FragmentThreshold) {
 244                         CopySize = pDes->FragmentThreshold;
 245                         pT00->T00_frame_length = 24 + CopySize;//Set USB length
 246                 } else
 247                         pT00->T00_frame_length = 24 + SizeLeft;//Set USB length
 248
 249                 SizeLeft -= CopySize;
 250
 251                 // 1 Byte operation
 252                 pctmp = (u8 *)( buffer + 8 + DOT_11_SEQUENCE_OFFSET );
 253                 *pctmp &= 0xf0;
 254                 *pctmp |= FragmentCount;//931130.5.m
 255                 if( !FragmentCount )
 256                         pT00->T00_first_mpdu = 1;
 257
 258                 buffer += 32; // 8B usb + 24B 802.11 header
 259                 Size += 32;
 260
 261                 // Copy into buffer
 262                 stmp = CopySize + 3;
 263                 stmp &= ~0x03;//4n Alignment
 264                 Size += stmp;// Current 4n offset of mpdu
 265
 266                 while (CopySize) {
 267                         // Copy body
 268                         src_buffer = pDes->buffer_address[buf_index];
 269                         CopyLeft = CopySize;
 270                         if (CopySize >= pDes->buffer_size[buf_index]) {
 271                                 CopyLeft = pDes->buffer_size[buf_index];
 272
 273                                 // Get the next buffer of descriptor
 274                                 buf_index++;
 275                                 buf_index %= MAX_DESCRIPTOR_BUFFER_INDEX;
 276                         } else {
 277                                 u8      *pctmp = pDes->buffer_address[buf_index];
 278                                 pctmp += CopySize;
 279                                 pDes->buffer_address[buf_index] = pctmp;
 280                                 pDes->buffer_size[buf_index] -= CopySize;
 281                         }
 282
 283                         memcpy(buffer, src_buffer, CopyLeft);
 284                         buffer += CopyLeft;
 285                         CopySize -= CopyLeft;
 286                 }
 287
 288                 // 931130.5.n
 289                 if (pMds->MicAdd) {
 290                         if (!SizeLeft) {
 291                                 pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - pMds->MicAdd;
 292                                 pMds->MicWriteSize[ pMds->MicWriteIndex ] = pMds->MicAdd;
 293                                 pMds->MicAdd = 0;
 294                         }
 295                         else if( SizeLeft < 8 ) //931130.5.p
 296                         {
 297                                 pMds->MicAdd = SizeLeft;
 298                                 pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - ( 8 - SizeLeft );
 299                                 pMds->MicWriteSize[ pMds->MicWriteIndex ] = 8 - SizeLeft;
 300                                 pMds->MicWriteIndex++;
 301                         }
 302                 }
 303
 304                 // Does it need to generate the new header for next mpdu?
 305                 if (SizeLeft) {
 306                         buffer = TargetBuffer + Size; // Get the next 4n start address
 307                         memcpy( buffer, TargetBuffer, 32 );//Copy 8B USB +24B 802.11
 308                         pT00 = (PT00_DESCRIPTOR)buffer;
 309                         pT00->T00_first_mpdu = 0;
 310                 }
 311
 312                 FragmentCount++;
 313         }
 314
 315         pT00->T00_last_mpdu = 1;
 316         pT00->T00_IsLastMpdu = 1;
 317         buffer = (u8 *)pT00 + 8; // +8 for USB hdr
 318         buffer[1] &= ~0x04; // Clear more frag bit of 802.11 frame control
 319         pDes->FragmentCount = FragmentCount; // Update the correct fragment number
 320         return Size;
 321 }
 322
 323 static void Mds_HeaderCopy(struct wbsoft_priv * adapter, PDESCRIPTOR pDes, u8 *TargetBuffer)
 324 {
 325         PMDS    pMds = &adapter->Mds;
 326         u8      *src_buffer = pDes->buffer_address[0];//931130.5.g
 327         PT00_DESCRIPTOR pT00;
 328         PT01_DESCRIPTOR pT01;
 329         u16     stmp;
 330         u8      i, ctmp1, ctmp2, ctmpf;
 331         u16     FragmentThreshold = CURRENT_FRAGMENT_THRESHOLD;
 332
 333
 334         stmp = pDes->buffer_total_size;
 335         //
 336         // Set USB header 8 byte
 337         //
 338         pT00 = (PT00_DESCRIPTOR)TargetBuffer;
 339         TargetBuffer += 4;
 340         pT01 = (PT01_DESCRIPTOR)TargetBuffer;
 341         TargetBuffer += 4;
 342
 343         pT00->value = 0;// Clear
 344         pT01->value = 0;// Clear
 345
 346         pT00->T00_tx_packet_id = pDes->Descriptor_ID;// Set packet ID
 347         pT00->T00_header_length = 24;// Set header length
 348         pT01->T01_retry_abort_ebable = 1;//921013 931130.5.h
 349
 350         // Key ID setup
 351         pT01->T01_wep_id = 0;
 352
 353         FragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD; //Do not fragment
 354         // Copy full data, the 1'st buffer contain all the data 931130.5.j
 355         memcpy( TargetBuffer, src_buffer, DOT_11_MAC_HEADER_SIZE );// Copy header
 356         pDes->buffer_address[0] = src_buffer + DOT_11_MAC_HEADER_SIZE;
 357         pDes->buffer_total_size -= DOT_11_MAC_HEADER_SIZE;
 358         pDes->buffer_size[0] = pDes->buffer_total_size;
 359
 360         // Set fragment threshold
 361         FragmentThreshold -= (DOT_11_MAC_HEADER_SIZE + 4);
 362         pDes->FragmentThreshold = FragmentThreshold;
 363
 364         // Set more frag bit
 365         TargetBuffer[1] |= 0x04;// Set more frag bit
 366
 367         //
 368         // Set tx rate
 369         //
 370         stmp = *(u16 *)(TargetBuffer+30); // 2n alignment address
 371
 372         //Use basic rate
 373         ctmp1 = ctmpf = CURRENT_TX_RATE_FOR_MNG;
 374
 375         pDes->TxRate = ctmp1;
 376         #ifdef _PE_TX_DUMP_
 377         WBDEBUG(("Tx rate =%x\n", ctmp1));
 378         #endif
 379
 380         pT01->T01_modulation_type = (ctmp1%3) ? 0 : 1;
 381
 382         for( i=0; i<2; i++ ) {
 383                 if( i == 1 )
 384                         ctmp1 = ctmpf;
 385
 386                 pMds->TxRate[pDes->Descriptor_ID][i] = ctmp1; // backup the ta rate and fall back rate
 387
 388                 if( ctmp1 == 108) ctmp2 = 7;
 389                 else if( ctmp1 == 96 ) ctmp2 = 6; // Rate convert for USB
 390                 else if( ctmp1 == 72 ) ctmp2 = 5;
 391                 else if( ctmp1 == 48 ) ctmp2 = 4;
 392                 else if( ctmp1 == 36 ) ctmp2 = 3;
 393                 else if( ctmp1 == 24 ) ctmp2 = 2;
 394                 else if( ctmp1 == 18 ) ctmp2 = 1;
 395                 else if( ctmp1 == 12 ) ctmp2 = 0;
 396                 else if( ctmp1 == 22 ) ctmp2 = 3;
 397                 else if( ctmp1 == 11 ) ctmp2 = 2;
 398                 else if( ctmp1 == 4  ) ctmp2 = 1;
 399                 else ctmp2 = 0; // if( ctmp1 == 2  ) or default
 400
 401                 if( i == 0 )
 402                         pT01->T01_transmit_rate = ctmp2;
 403                 else
 404                         pT01->T01_fall_back_rate = ctmp2;
 405         }
 406
 407         //
 408         // Set preamble type
 409         //
 410         if ((pT01->T01_modulation_type == 0) && (pT01->T01_transmit_rate == 0)) // RATE_1M
 411                 pDes->PreambleMode =  WLAN_PREAMBLE_TYPE_LONG;
 412         else
 413                 pDes->PreambleMode =  CURRENT_PREAMBLE_MODE;
 414         pT01->T01_plcp_header_length = pDes->PreambleMode;      // Set preamble
 415
 416 }
 417
 418 void
 419 Mds_Tx(struct wbsoft_priv * adapter)
 420 {
 421         phw_data_t      pHwData = &adapter->sHwData;
 422         PMDS            pMds = &adapter->Mds;
 423         DESCRIPTOR      TxDes;
 424         PDESCRIPTOR     pTxDes = &TxDes;
 425         u8              *XmitBufAddress;
 426         u16             XmitBufSize, PacketSize, stmp, CurrentSize, FragmentThreshold;
 427         u8              FillIndex, TxDesIndex, FragmentCount, FillCount;
 428         unsigned char   BufferFilled = false, MICAdd = 0;
 429
 430
 431         if (pMds->TxPause)
 432                 return;
 433         if (!hal_driver_init_OK(pHwData))
 434                 return;
 435
 436         //Only one thread can be run here
 437         if (!atomic_inc_return(&pMds->TxThreadCount) == 1)
 438                 goto cleanup;
 439
 440         // Start to fill the data
 441         do {
 442                 FillIndex = pMds->TxFillIndex;
 443                 if (pMds->TxOwner[FillIndex]) { // Is owned by software 0:Yes 1:No
 444 #ifdef _PE_TX_DUMP_
 445                         WBDEBUG(("[Mds_Tx] Tx Owner is H/W.\n"));
 446 #endif
 447                         break;
 448                 }
 449
 450                 XmitBufAddress = pMds->pTxBuffer + (MAX_USB_TX_BUFFER * FillIndex); //Get buffer
 451                 XmitBufSize = 0;
 452                 FillCount = 0;
 453                 do {
 454                         PacketSize = adapter->sMlmeFrame.len;
 455                         if (!PacketSize)
 456                                 break;
 457
 458                         //For Check the buffer resource
 459                         FragmentThreshold = CURRENT_FRAGMENT_THRESHOLD;
 460                         //931130.5.b
 461                         FragmentCount = PacketSize/FragmentThreshold + 1;
 462                         stmp = PacketSize + FragmentCount*32 + 8;//931130.5.c 8:MIC
 463                         if ((XmitBufSize + stmp) >= MAX_USB_TX_BUFFER) {
 464                                 printk("[Mds_Tx] Excess max tx buffer.\n");
 465                                 break; // buffer is not enough
 466                         }
 467
 468
 469                         //
 470                         // Start transmitting
 471                         //
 472                         BufferFilled = true;
 473
 474                         /* Leaves first u8 intact */
 475                         memset((u8 *)pTxDes + 1, 0, sizeof(DESCRIPTOR) - 1);
 476
 477                         TxDesIndex = pMds->TxDesIndex;//Get the current ID
 478                         pTxDes->Descriptor_ID = TxDesIndex;
 479                         pMds->TxDesFrom[ TxDesIndex ] = 2;//Storing the information of source comming from
 480                         pMds->TxDesIndex++;
 481                         pMds->TxDesIndex %= MAX_USB_TX_DESCRIPTOR;
 482
 483                         MLME_GetNextPacket( adapter, pTxDes );
 484
 485                         // Copy header. 8byte USB + 24byte 802.11Hdr. Set TxRate, Preamble type
 486                         Mds_HeaderCopy( adapter, pTxDes, XmitBufAddress );
 487
 488                         // For speed up Key setting
 489                         if (pTxDes->EapFix) {
 490 #ifdef _PE_TX_DUMP_
 491                                 WBDEBUG(("35: EPA 4th frame detected. Size = %d\n", PacketSize));
 492 #endif
 493                                 pHwData->IsKeyPreSet = 1;
 494                         }
 495
 496                         // Copy (fragment) frame body, and set USB, 802.11 hdr flag
 497                         CurrentSize = Mds_BodyCopy(adapter, pTxDes, XmitBufAddress);
 498
 499                         // Set RTS/CTS and Normal duration field into buffer
 500                         Mds_DurationSet(adapter, pTxDes, XmitBufAddress);
 501
 502                         //
 503                         // Calculation MIC from buffer which maybe fragment, then fill into temporary address 8 byte
 504                         // 931130.5.e
 505                         if (MICAdd)
 506                                 Mds_MicFill( adapter, pTxDes, XmitBufAddress );
 507
 508                         //Shift to the next address
 509                         XmitBufSize += CurrentSize;
 510                         XmitBufAddress += CurrentSize;
 511
 512 #ifdef _IBSS_BEACON_SEQ_STICK_
 513                         if ((XmitBufAddress[ DOT_11_DA_OFFSET+8 ] & 0xfc) != MAC_SUBTYPE_MNGMNT_PROBE_REQUEST) // +8 for USB hdr
 514 #endif
 515                                 pMds->TxToggle = true;
 516
 517                         // Get packet to transmit completed, 1:TESTSTA 2:MLME 3: Ndis data
 518                         MLME_SendComplete(adapter, 0, true);
 519
 520                         // Software TSC count 20060214
 521                         pMds->TxTsc++;
 522                         if (pMds->TxTsc == 0)
 523                                 pMds->TxTsc_2++;
 524
 525                         FillCount++; // 20060928
 526                 } while (HAL_USB_MODE_BURST(pHwData)); // End of multiple MSDU copy loop. false = single true = multiple sending
 527
 528                 // Move to the next one, if necessary
 529                 if (BufferFilled) {
 530                         // size setting
 531                         pMds->TxBufferSize[ FillIndex ] = XmitBufSize;
 532
 533                         // 20060928 set Tx count
 534                         pMds->TxCountInBuffer[FillIndex] = FillCount;
 535
 536                         // Set owner flag
 537                         pMds->TxOwner[FillIndex] = 1;
 538
 539                         pMds->TxFillIndex++;
 540                         pMds->TxFillIndex %= MAX_USB_TX_BUFFER_NUMBER;
 541                         BufferFilled = false;
 542                 } else
 543                         break;
 544
 545                 if (!PacketSize) // No more pk for transmitting
 546                         break;
 547
 548         } while(true);
 549
 550         //
 551         // Start to send by lower module
 552         //
 553         if (!pHwData->IsKeyPreSet)
 554                 Wb35Tx_start(adapter);
 555
 556  cleanup:
 557         atomic_dec(&pMds->TxThreadCount);
 558 }
 559
 560 void
 561 Mds_SendComplete(struct wbsoft_priv * adapter, PT02_DESCRIPTOR pT02)
 562 {
 563         PMDS    pMds = &adapter->Mds;
 564         phw_data_t      pHwData = &adapter->sHwData;
 565         u8      PacketId = (u8)pT02->T02_Tx_PktID;
 566         unsigned char   SendOK = true;
 567         u8      RetryCount, TxRate;
 568
 569         if (pT02->T02_IgnoreResult) // Don't care the result
 570                 return;
 571         if (pT02->T02_IsLastMpdu) {
 572                 //TODO: DTO -- get the retry count and fragment count
 573                 // Tx rate
 574                 TxRate = pMds->TxRate[ PacketId ][ 0 ];
 575                 RetryCount = (u8)pT02->T02_MPDU_Cnt;
 576                 if (pT02->value & FLAG_ERROR_TX_MASK) {
 577                         SendOK = false;
 578
 579                         if (pT02->T02_transmit_abort || pT02->T02_out_of_MaxTxMSDULiftTime) {
 580                                 //retry error
 581                                 pHwData->dto_tx_retry_count += (RetryCount+1);
 582                                 //[for tx debug]
 583                                 if (RetryCount<7)
 584                                         pHwData->tx_retry_count[RetryCount] += RetryCount;
 585                                 else
 586                                         pHwData->tx_retry_count[7] += RetryCount;
 587                                 #ifdef _PE_STATE_DUMP_
 588                                 WBDEBUG(("dto_tx_retry_count =%d\n", pHwData->dto_tx_retry_count));
 589                                 #endif
 590                                 MTO_SetTxCount(adapter, TxRate, RetryCount);
 591                         }
 592                         pHwData->dto_tx_frag_count += (RetryCount+1);
 593
 594                         //[for tx debug]
 595                         if (pT02->T02_transmit_abort_due_to_TBTT)
 596                                 pHwData->tx_TBTT_start_count++;
 597                         if (pT02->T02_transmit_without_encryption_due_to_wep_on_false)
 598                                 pHwData->tx_WepOn_false_count++;
 599                         if (pT02->T02_discard_due_to_null_wep_key)
 600                                 pHwData->tx_Null_key_count++;
 601                 } else {
 602                         if (pT02->T02_effective_transmission_rate)
 603                                 pHwData->tx_ETR_count++;
 604                         MTO_SetTxCount(adapter, TxRate, RetryCount);
 605                 }
 606
 607                 // Clear send result buffer
 608                 pMds->TxResult[ PacketId ] = 0;
 609         } else
 610                 pMds->TxResult[ PacketId ] |= ((u16)(pT02->value & 0x0ffff));
 611 }