Pavel Machek | 66101de | 2008-10-01 14:36:56 +0200 | [diff] [blame^] | 1 | #include "os_common.h" |
| 2 | |
| 3 | void |
| 4 | Mds_reset_descriptor(PADAPTER Adapter) |
| 5 | { |
| 6 | PMDS pMds = &Adapter->Mds; |
| 7 | |
| 8 | pMds->TxPause = 0; |
| 9 | pMds->TxThreadCount = 0; |
| 10 | pMds->TxFillIndex = 0; |
| 11 | pMds->TxDesIndex = 0; |
| 12 | pMds->ScanTxPause = 0; |
| 13 | memset(pMds->TxOwner, 0, ((MAX_USB_TX_BUFFER_NUMBER + 3) & ~0x03)); |
| 14 | } |
| 15 | |
| 16 | unsigned char |
| 17 | Mds_initial(PADAPTER Adapter) |
| 18 | { |
| 19 | PMDS pMds = &Adapter->Mds; |
| 20 | |
| 21 | pMds->TxPause = FALSE; |
| 22 | pMds->TxRTSThreshold = DEFAULT_RTSThreshold; |
| 23 | pMds->TxFragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD; |
| 24 | |
| 25 | vRxTimerInit(Adapter);//for WPA countermeasure |
| 26 | |
| 27 | return hal_get_tx_buffer( &Adapter->sHwData, &pMds->pTxBuffer ); |
| 28 | } |
| 29 | |
| 30 | void |
| 31 | Mds_Destroy(PADAPTER Adapter) |
| 32 | { |
| 33 | vRxTimerStop(Adapter); |
| 34 | } |
| 35 | |
| 36 | void |
| 37 | Mds_Tx(PADAPTER Adapter) |
| 38 | { |
| 39 | phw_data_t pHwData = &Adapter->sHwData; |
| 40 | PMDS pMds = &Adapter->Mds; |
| 41 | DESCRIPTOR TxDes; |
| 42 | PDESCRIPTOR pTxDes = &TxDes; |
| 43 | PUCHAR XmitBufAddress; |
| 44 | u16 XmitBufSize, PacketSize, stmp, CurrentSize, FragmentThreshold; |
| 45 | u8 FillIndex, TxDesIndex, FragmentCount, FillCount; |
| 46 | unsigned char BufferFilled = FALSE, MICAdd = 0; |
| 47 | |
| 48 | |
| 49 | if (pMds->TxPause) |
| 50 | return; |
| 51 | if (!hal_driver_init_OK(pHwData)) |
| 52 | return; |
| 53 | |
| 54 | //Only one thread can be run here |
| 55 | if (!OS_ATOMIC_INC( Adapter, &pMds->TxThreadCount) == 1) |
| 56 | goto cleanup; |
| 57 | |
| 58 | // Start to fill the data |
| 59 | do { |
| 60 | FillIndex = pMds->TxFillIndex; |
| 61 | if (pMds->TxOwner[FillIndex]) { // Is owned by software 0:Yes 1:No |
| 62 | #ifdef _PE_TX_DUMP_ |
| 63 | WBDEBUG(("[Mds_Tx] Tx Owner is H/W.\n")); |
| 64 | #endif |
| 65 | break; |
| 66 | } |
| 67 | |
| 68 | XmitBufAddress = pMds->pTxBuffer + (MAX_USB_TX_BUFFER * FillIndex); //Get buffer |
| 69 | XmitBufSize = 0; |
| 70 | FillCount = 0; |
| 71 | do { |
| 72 | PacketSize = Adapter->sMlmeFrame.len; |
| 73 | if (!PacketSize) |
| 74 | break; |
| 75 | |
| 76 | //For Check the buffer resource |
| 77 | FragmentThreshold = CURRENT_FRAGMENT_THRESHOLD; |
| 78 | //931130.5.b |
| 79 | FragmentCount = PacketSize/FragmentThreshold + 1; |
| 80 | stmp = PacketSize + FragmentCount*32 + 8;//931130.5.c 8:MIC |
| 81 | if ((XmitBufSize + stmp) >= MAX_USB_TX_BUFFER) { |
| 82 | printk("[Mds_Tx] Excess max tx buffer.\n"); |
| 83 | break; // buffer is not enough |
| 84 | } |
| 85 | |
| 86 | |
| 87 | // |
| 88 | // Start transmitting |
| 89 | // |
| 90 | BufferFilled = TRUE; |
| 91 | |
| 92 | /* Leaves first u8 intact */ |
| 93 | memset((PUCHAR)pTxDes + 1, 0, sizeof(DESCRIPTOR) - 1); |
| 94 | |
| 95 | TxDesIndex = pMds->TxDesIndex;//Get the current ID |
| 96 | pTxDes->Descriptor_ID = TxDesIndex; |
| 97 | pMds->TxDesFrom[ TxDesIndex ] = 2;//Storing the information of source comming from |
| 98 | pMds->TxDesIndex++; |
| 99 | pMds->TxDesIndex %= MAX_USB_TX_DESCRIPTOR; |
| 100 | |
| 101 | MLME_GetNextPacket( Adapter, pTxDes ); |
| 102 | |
| 103 | // Copy header. 8byte USB + 24byte 802.11Hdr. Set TxRate, Preamble type |
| 104 | Mds_HeaderCopy( Adapter, pTxDes, XmitBufAddress ); |
| 105 | |
| 106 | // For speed up Key setting |
| 107 | if (pTxDes->EapFix) { |
| 108 | #ifdef _PE_TX_DUMP_ |
| 109 | WBDEBUG(("35: EPA 4th frame detected. Size = %d\n", PacketSize)); |
| 110 | #endif |
| 111 | pHwData->IsKeyPreSet = 1; |
| 112 | } |
| 113 | |
| 114 | // Copy (fragment) frame body, and set USB, 802.11 hdr flag |
| 115 | CurrentSize = Mds_BodyCopy(Adapter, pTxDes, XmitBufAddress); |
| 116 | |
| 117 | // Set RTS/CTS and Normal duration field into buffer |
| 118 | Mds_DurationSet(Adapter, pTxDes, XmitBufAddress); |
| 119 | |
| 120 | // |
| 121 | // Calculation MIC from buffer which maybe fragment, then fill into temporary address 8 byte |
| 122 | // 931130.5.e |
| 123 | if (MICAdd) |
| 124 | Mds_MicFill( Adapter, pTxDes, XmitBufAddress ); |
| 125 | |
| 126 | //Shift to the next address |
| 127 | XmitBufSize += CurrentSize; |
| 128 | XmitBufAddress += CurrentSize; |
| 129 | |
| 130 | #ifdef _IBSS_BEACON_SEQ_STICK_ |
| 131 | if ((XmitBufAddress[ DOT_11_DA_OFFSET+8 ] & 0xfc) != MAC_SUBTYPE_MNGMNT_PROBE_REQUEST) // +8 for USB hdr |
| 132 | #endif |
| 133 | pMds->TxToggle = TRUE; |
| 134 | |
| 135 | // Get packet to transmit completed, 1:TESTSTA 2:MLME 3: Ndis data |
| 136 | MLME_SendComplete(Adapter, 0, TRUE); |
| 137 | |
| 138 | // Software TSC count 20060214 |
| 139 | pMds->TxTsc++; |
| 140 | if (pMds->TxTsc == 0) |
| 141 | pMds->TxTsc_2++; |
| 142 | |
| 143 | FillCount++; // 20060928 |
| 144 | } while (HAL_USB_MODE_BURST(pHwData)); // End of multiple MSDU copy loop. FALSE = single TRUE = multiple sending |
| 145 | |
| 146 | // Move to the next one, if necessary |
| 147 | if (BufferFilled) { |
| 148 | // size setting |
| 149 | pMds->TxBufferSize[ FillIndex ] = XmitBufSize; |
| 150 | |
| 151 | // 20060928 set Tx count |
| 152 | pMds->TxCountInBuffer[FillIndex] = FillCount; |
| 153 | |
| 154 | // Set owner flag |
| 155 | pMds->TxOwner[FillIndex] = 1; |
| 156 | |
| 157 | pMds->TxFillIndex++; |
| 158 | pMds->TxFillIndex %= MAX_USB_TX_BUFFER_NUMBER; |
| 159 | BufferFilled = FALSE; |
| 160 | } else |
| 161 | break; |
| 162 | |
| 163 | if (!PacketSize) // No more pk for transmitting |
| 164 | break; |
| 165 | |
| 166 | } while(TRUE); |
| 167 | |
| 168 | // |
| 169 | // Start to send by lower module |
| 170 | // |
| 171 | if (!pHwData->IsKeyPreSet) |
| 172 | Wb35Tx_start(pHwData); |
| 173 | |
| 174 | cleanup: |
| 175 | OS_ATOMIC_DEC( Adapter, &pMds->TxThreadCount ); |
| 176 | } |
| 177 | |
| 178 | void |
| 179 | Mds_SendComplete(PADAPTER Adapter, PT02_DESCRIPTOR pT02) |
| 180 | { |
| 181 | PMDS pMds = &Adapter->Mds; |
| 182 | phw_data_t pHwData = &Adapter->sHwData; |
| 183 | u8 PacketId = (u8)pT02->T02_Tx_PktID; |
| 184 | unsigned char SendOK = TRUE; |
| 185 | u8 RetryCount, TxRate; |
| 186 | |
| 187 | if (pT02->T02_IgnoreResult) // Don't care the result |
| 188 | return; |
| 189 | if (pT02->T02_IsLastMpdu) { |
| 190 | //TODO: DTO -- get the retry count and fragment count |
| 191 | // Tx rate |
| 192 | TxRate = pMds->TxRate[ PacketId ][ 0 ]; |
| 193 | RetryCount = (u8)pT02->T02_MPDU_Cnt; |
| 194 | if (pT02->value & FLAG_ERROR_TX_MASK) { |
| 195 | SendOK = FALSE; |
| 196 | |
| 197 | if (pT02->T02_transmit_abort || pT02->T02_out_of_MaxTxMSDULiftTime) { |
| 198 | //retry error |
| 199 | pHwData->dto_tx_retry_count += (RetryCount+1); |
| 200 | //[for tx debug] |
| 201 | if (RetryCount<7) |
| 202 | pHwData->tx_retry_count[RetryCount] += RetryCount; |
| 203 | else |
| 204 | pHwData->tx_retry_count[7] += RetryCount; |
| 205 | #ifdef _PE_STATE_DUMP_ |
| 206 | WBDEBUG(("dto_tx_retry_count =%d\n", pHwData->dto_tx_retry_count)); |
| 207 | #endif |
| 208 | MTO_SetTxCount(Adapter, TxRate, RetryCount); |
| 209 | } |
| 210 | pHwData->dto_tx_frag_count += (RetryCount+1); |
| 211 | |
| 212 | //[for tx debug] |
| 213 | if (pT02->T02_transmit_abort_due_to_TBTT) |
| 214 | pHwData->tx_TBTT_start_count++; |
| 215 | if (pT02->T02_transmit_without_encryption_due_to_wep_on_false) |
| 216 | pHwData->tx_WepOn_false_count++; |
| 217 | if (pT02->T02_discard_due_to_null_wep_key) |
| 218 | pHwData->tx_Null_key_count++; |
| 219 | } else { |
| 220 | if (pT02->T02_effective_transmission_rate) |
| 221 | pHwData->tx_ETR_count++; |
| 222 | MTO_SetTxCount(Adapter, TxRate, RetryCount); |
| 223 | } |
| 224 | |
| 225 | // Clear send result buffer |
| 226 | pMds->TxResult[ PacketId ] = 0; |
| 227 | } else |
| 228 | pMds->TxResult[ PacketId ] |= ((u16)(pT02->value & 0x0ffff)); |
| 229 | } |
| 230 | |
| 231 | void |
| 232 | Mds_HeaderCopy(PADAPTER Adapter, PDESCRIPTOR pDes, PUCHAR TargetBuffer) |
| 233 | { |
| 234 | PMDS pMds = &Adapter->Mds; |
| 235 | PUCHAR src_buffer = pDes->buffer_address[0];//931130.5.g |
| 236 | PT00_DESCRIPTOR pT00; |
| 237 | PT01_DESCRIPTOR pT01; |
| 238 | u16 stmp; |
| 239 | u8 i, ctmp1, ctmp2, ctmpf; |
| 240 | u16 FragmentThreshold = CURRENT_FRAGMENT_THRESHOLD; |
| 241 | |
| 242 | |
| 243 | stmp = pDes->buffer_total_size; |
| 244 | // |
| 245 | // Set USB header 8 byte |
| 246 | // |
| 247 | pT00 = (PT00_DESCRIPTOR)TargetBuffer; |
| 248 | TargetBuffer += 4; |
| 249 | pT01 = (PT01_DESCRIPTOR)TargetBuffer; |
| 250 | TargetBuffer += 4; |
| 251 | |
| 252 | pT00->value = 0;// Clear |
| 253 | pT01->value = 0;// Clear |
| 254 | |
| 255 | pT00->T00_tx_packet_id = pDes->Descriptor_ID;// Set packet ID |
| 256 | pT00->T00_header_length = 24;// Set header length |
| 257 | pT01->T01_retry_abort_ebable = 1;//921013 931130.5.h |
| 258 | |
| 259 | // Key ID setup |
| 260 | pT01->T01_wep_id = 0; |
| 261 | |
| 262 | FragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD; //Do not fragment |
| 263 | // Copy full data, the 1'st buffer contain all the data 931130.5.j |
| 264 | memcpy( TargetBuffer, src_buffer, DOT_11_MAC_HEADER_SIZE );// Copy header |
| 265 | pDes->buffer_address[0] = src_buffer + DOT_11_MAC_HEADER_SIZE; |
| 266 | pDes->buffer_total_size -= DOT_11_MAC_HEADER_SIZE; |
| 267 | pDes->buffer_size[0] = pDes->buffer_total_size; |
| 268 | |
| 269 | // Set fragment threshold |
| 270 | FragmentThreshold -= (DOT_11_MAC_HEADER_SIZE + 4); |
| 271 | pDes->FragmentThreshold = FragmentThreshold; |
| 272 | |
| 273 | // Set more frag bit |
| 274 | TargetBuffer[1] |= 0x04;// Set more frag bit |
| 275 | |
| 276 | // |
| 277 | // Set tx rate |
| 278 | // |
| 279 | stmp = *(PUSHORT)(TargetBuffer+30); // 2n alignment address |
| 280 | |
| 281 | //Use basic rate |
| 282 | ctmp1 = ctmpf = CURRENT_TX_RATE_FOR_MNG; |
| 283 | |
| 284 | pDes->TxRate = ctmp1; |
| 285 | #ifdef _PE_TX_DUMP_ |
| 286 | WBDEBUG(("Tx rate =%x\n", ctmp1)); |
| 287 | #endif |
| 288 | |
| 289 | pT01->T01_modulation_type = (ctmp1%3) ? 0 : 1; |
| 290 | |
| 291 | for( i=0; i<2; i++ ) { |
| 292 | if( i == 1 ) |
| 293 | ctmp1 = ctmpf; |
| 294 | |
| 295 | pMds->TxRate[pDes->Descriptor_ID][i] = ctmp1; // backup the ta rate and fall back rate |
| 296 | |
| 297 | if( ctmp1 == 108) ctmp2 = 7; |
| 298 | else if( ctmp1 == 96 ) ctmp2 = 6; // Rate convert for USB |
| 299 | else if( ctmp1 == 72 ) ctmp2 = 5; |
| 300 | else if( ctmp1 == 48 ) ctmp2 = 4; |
| 301 | else if( ctmp1 == 36 ) ctmp2 = 3; |
| 302 | else if( ctmp1 == 24 ) ctmp2 = 2; |
| 303 | else if( ctmp1 == 18 ) ctmp2 = 1; |
| 304 | else if( ctmp1 == 12 ) ctmp2 = 0; |
| 305 | else if( ctmp1 == 22 ) ctmp2 = 3; |
| 306 | else if( ctmp1 == 11 ) ctmp2 = 2; |
| 307 | else if( ctmp1 == 4 ) ctmp2 = 1; |
| 308 | else ctmp2 = 0; // if( ctmp1 == 2 ) or default |
| 309 | |
| 310 | if( i == 0 ) |
| 311 | pT01->T01_transmit_rate = ctmp2; |
| 312 | else |
| 313 | pT01->T01_fall_back_rate = ctmp2; |
| 314 | } |
| 315 | |
| 316 | // |
| 317 | // Set preamble type |
| 318 | // |
| 319 | if ((pT01->T01_modulation_type == 0) && (pT01->T01_transmit_rate == 0)) // RATE_1M |
| 320 | pDes->PreambleMode = WLAN_PREAMBLE_TYPE_LONG; |
| 321 | else |
| 322 | pDes->PreambleMode = CURRENT_PREAMBLE_MODE; |
| 323 | pT01->T01_plcp_header_length = pDes->PreambleMode; // Set preamble |
| 324 | |
| 325 | } |
| 326 | |
| 327 | // The function return the 4n size of usb pk |
| 328 | u16 |
| 329 | Mds_BodyCopy(PADAPTER Adapter, PDESCRIPTOR pDes, PUCHAR TargetBuffer) |
| 330 | { |
| 331 | PT00_DESCRIPTOR pT00; |
| 332 | PMDS pMds = &Adapter->Mds; |
| 333 | PUCHAR buffer, src_buffer, pctmp; |
| 334 | u16 Size = 0; |
| 335 | u16 SizeLeft, CopySize, CopyLeft, stmp; |
| 336 | u8 buf_index, FragmentCount = 0; |
| 337 | |
| 338 | |
| 339 | // Copy fragment body |
| 340 | buffer = TargetBuffer; // shift 8B usb + 24B 802.11 |
| 341 | SizeLeft = pDes->buffer_total_size; |
| 342 | buf_index = pDes->buffer_start_index; |
| 343 | |
| 344 | pT00 = (PT00_DESCRIPTOR)buffer; |
| 345 | while (SizeLeft) { |
| 346 | pT00 = (PT00_DESCRIPTOR)buffer; |
| 347 | CopySize = SizeLeft; |
| 348 | if (SizeLeft > pDes->FragmentThreshold) { |
| 349 | CopySize = pDes->FragmentThreshold; |
| 350 | pT00->T00_frame_length = 24 + CopySize;//Set USB length |
| 351 | } else |
| 352 | pT00->T00_frame_length = 24 + SizeLeft;//Set USB length |
| 353 | |
| 354 | SizeLeft -= CopySize; |
| 355 | |
| 356 | // 1 Byte operation |
| 357 | pctmp = (PUCHAR)( buffer + 8 + DOT_11_SEQUENCE_OFFSET ); |
| 358 | *pctmp &= 0xf0; |
| 359 | *pctmp |= FragmentCount;//931130.5.m |
| 360 | if( !FragmentCount ) |
| 361 | pT00->T00_first_mpdu = 1; |
| 362 | |
| 363 | buffer += 32; // 8B usb + 24B 802.11 header |
| 364 | Size += 32; |
| 365 | |
| 366 | // Copy into buffer |
| 367 | stmp = CopySize + 3; |
| 368 | stmp &= ~0x03;//4n Alignment |
| 369 | Size += stmp;// Current 4n offset of mpdu |
| 370 | |
| 371 | while (CopySize) { |
| 372 | // Copy body |
| 373 | src_buffer = pDes->buffer_address[buf_index]; |
| 374 | CopyLeft = CopySize; |
| 375 | if (CopySize >= pDes->buffer_size[buf_index]) { |
| 376 | CopyLeft = pDes->buffer_size[buf_index]; |
| 377 | |
| 378 | // Get the next buffer of descriptor |
| 379 | buf_index++; |
| 380 | buf_index %= MAX_DESCRIPTOR_BUFFER_INDEX; |
| 381 | } else { |
| 382 | PUCHAR pctmp = pDes->buffer_address[buf_index]; |
| 383 | pctmp += CopySize; |
| 384 | pDes->buffer_address[buf_index] = pctmp; |
| 385 | pDes->buffer_size[buf_index] -= CopySize; |
| 386 | } |
| 387 | |
| 388 | memcpy(buffer, src_buffer, CopyLeft); |
| 389 | buffer += CopyLeft; |
| 390 | CopySize -= CopyLeft; |
| 391 | } |
| 392 | |
| 393 | // 931130.5.n |
| 394 | if (pMds->MicAdd) { |
| 395 | if (!SizeLeft) { |
| 396 | pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - pMds->MicAdd; |
| 397 | pMds->MicWriteSize[ pMds->MicWriteIndex ] = pMds->MicAdd; |
| 398 | pMds->MicAdd = 0; |
| 399 | } |
| 400 | else if( SizeLeft < 8 ) //931130.5.p |
| 401 | { |
| 402 | pMds->MicAdd = SizeLeft; |
| 403 | pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - ( 8 - SizeLeft ); |
| 404 | pMds->MicWriteSize[ pMds->MicWriteIndex ] = 8 - SizeLeft; |
| 405 | pMds->MicWriteIndex++; |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | // Does it need to generate the new header for next mpdu? |
| 410 | if (SizeLeft) { |
| 411 | buffer = TargetBuffer + Size; // Get the next 4n start address |
| 412 | memcpy( buffer, TargetBuffer, 32 );//Copy 8B USB +24B 802.11 |
| 413 | pT00 = (PT00_DESCRIPTOR)buffer; |
| 414 | pT00->T00_first_mpdu = 0; |
| 415 | } |
| 416 | |
| 417 | FragmentCount++; |
| 418 | } |
| 419 | |
| 420 | pT00->T00_last_mpdu = 1; |
| 421 | pT00->T00_IsLastMpdu = 1; |
| 422 | buffer = (PUCHAR)pT00 + 8; // +8 for USB hdr |
| 423 | buffer[1] &= ~0x04; // Clear more frag bit of 802.11 frame control |
| 424 | pDes->FragmentCount = FragmentCount; // Update the correct fragment number |
| 425 | return Size; |
| 426 | } |
| 427 | |
| 428 | |
| 429 | void |
| 430 | Mds_DurationSet( PADAPTER Adapter, PDESCRIPTOR pDes, PUCHAR buffer ) |
| 431 | { |
| 432 | PT00_DESCRIPTOR pT00; |
| 433 | PT01_DESCRIPTOR pT01; |
| 434 | u16 Duration, NextBodyLen, OffsetSize; |
| 435 | u8 Rate, i; |
| 436 | unsigned char CTS_on = FALSE, RTS_on = FALSE; |
| 437 | PT00_DESCRIPTOR pNextT00; |
| 438 | u16 BodyLen; |
| 439 | unsigned char boGroupAddr = FALSE; |
| 440 | |
| 441 | |
| 442 | OffsetSize = pDes->FragmentThreshold + 32 + 3; |
| 443 | OffsetSize &= ~0x03; |
| 444 | Rate = pDes->TxRate >> 1; |
| 445 | if (!Rate) |
| 446 | Rate = 1; |
| 447 | |
| 448 | pT00 = (PT00_DESCRIPTOR)buffer; |
| 449 | pT01 = (PT01_DESCRIPTOR)(buffer+4); |
| 450 | pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize); |
| 451 | |
| 452 | if( buffer[ DOT_11_DA_OFFSET+8 ] & 0x1 ) // +8 for USB hdr |
| 453 | boGroupAddr = TRUE; |
| 454 | |
| 455 | //======================================== |
| 456 | // Set RTS/CTS mechanism |
| 457 | //======================================== |
| 458 | if (!boGroupAddr) |
| 459 | { |
| 460 | //NOTE : If the protection mode is enabled and the MSDU will be fragmented, |
| 461 | // the tx rates of MPDUs will all be DSSS rates. So it will not use |
| 462 | // CTS-to-self in this case. CTS-To-self will only be used when without |
| 463 | // fragmentation. -- 20050112 |
| 464 | BodyLen = (u16)pT00->T00_frame_length; //include 802.11 header |
| 465 | BodyLen += 4; //CRC |
| 466 | |
| 467 | if( BodyLen >= CURRENT_RTS_THRESHOLD ) |
| 468 | RTS_on = TRUE; // Using RTS |
| 469 | else |
| 470 | { |
| 471 | if( pT01->T01_modulation_type ) // Is using OFDM |
| 472 | { |
| 473 | if( CURRENT_PROTECT_MECHANISM ) // Is using protect |
| 474 | CTS_on = TRUE; // Using CTS |
| 475 | } |
| 476 | } |
| 477 | } |
| 478 | |
| 479 | if( RTS_on || CTS_on ) |
| 480 | { |
| 481 | if( pT01->T01_modulation_type) // Is using OFDM |
| 482 | { |
| 483 | //CTS duration |
| 484 | // 2 SIFS + DATA transmit time + 1 ACK |
| 485 | // ACK Rate : 24 Mega bps |
| 486 | // ACK frame length = 14 bytes |
| 487 | Duration = 2*DEFAULT_SIFSTIME + |
| 488 | 2*PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION + |
| 489 | ((BodyLen*8 + 22 + Rate*4 - 1)/(Rate*4))*Tsym + |
| 490 | ((112 + 22 + 95)/96)*Tsym; |
| 491 | } |
| 492 | else //DSSS |
| 493 | { |
| 494 | //CTS duration |
| 495 | // 2 SIFS + DATA transmit time + 1 ACK |
| 496 | // Rate : ?? Mega bps |
| 497 | // ACK frame length = 14 bytes |
| 498 | if( pT01->T01_plcp_header_length ) //long preamble |
| 499 | Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*2; |
| 500 | else |
| 501 | Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*2; |
| 502 | |
| 503 | Duration += ( ((BodyLen + 14)*8 + Rate-1) / Rate + |
| 504 | DEFAULT_SIFSTIME*2 ); |
| 505 | } |
| 506 | |
| 507 | if( RTS_on ) |
| 508 | { |
| 509 | if( pT01->T01_modulation_type ) // Is using OFDM |
| 510 | { |
| 511 | //CTS + 1 SIFS + CTS duration |
| 512 | //CTS Rate : 24 Mega bps |
| 513 | //CTS frame length = 14 bytes |
| 514 | Duration += (DEFAULT_SIFSTIME + |
| 515 | PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION + |
| 516 | ((112 + 22 + 95)/96)*Tsym); |
| 517 | } |
| 518 | else |
| 519 | { |
| 520 | //CTS + 1 SIFS + CTS duration |
| 521 | //CTS Rate : ?? Mega bps |
| 522 | //CTS frame length = 14 bytes |
| 523 | if( pT01->T01_plcp_header_length ) //long preamble |
| 524 | Duration += LONG_PREAMBLE_PLUS_PLCPHEADER_TIME; |
| 525 | else |
| 526 | Duration += SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME; |
| 527 | |
| 528 | Duration += ( ((112 + Rate-1) / Rate) + DEFAULT_SIFSTIME ); |
| 529 | } |
| 530 | } |
| 531 | |
| 532 | // Set the value into USB descriptor |
| 533 | pT01->T01_add_rts = RTS_on ? 1 : 0; |
| 534 | pT01->T01_add_cts = CTS_on ? 1 : 0; |
| 535 | pT01->T01_rts_cts_duration = Duration; |
| 536 | } |
| 537 | |
| 538 | //===================================== |
| 539 | // Fill the more fragment descriptor |
| 540 | //===================================== |
| 541 | if( boGroupAddr ) |
| 542 | Duration = 0; |
| 543 | else |
| 544 | { |
| 545 | for( i=pDes->FragmentCount-1; i>0; i-- ) |
| 546 | { |
| 547 | NextBodyLen = (u16)pNextT00->T00_frame_length; |
| 548 | NextBodyLen += 4; //CRC |
| 549 | |
| 550 | if( pT01->T01_modulation_type ) |
| 551 | { |
| 552 | //OFDM |
| 553 | // data transmit time + 3 SIFS + 2 ACK |
| 554 | // Rate : ??Mega bps |
| 555 | // ACK frame length = 14 bytes, tx rate = 24M |
| 556 | Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION * 3; |
| 557 | Duration += (((NextBodyLen*8 + 22 + Rate*4 - 1)/(Rate*4)) * Tsym + |
| 558 | (((2*14)*8 + 22 + 95)/96)*Tsym + |
| 559 | DEFAULT_SIFSTIME*3); |
| 560 | } |
| 561 | else |
| 562 | { |
| 563 | //DSSS |
| 564 | // data transmit time + 2 ACK + 3 SIFS |
| 565 | // Rate : ??Mega bps |
| 566 | // ACK frame length = 14 bytes |
| 567 | //TODO : |
| 568 | if( pT01->T01_plcp_header_length ) //long preamble |
| 569 | Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*3; |
| 570 | else |
| 571 | Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*3; |
| 572 | |
| 573 | Duration += ( ((NextBodyLen + (2*14))*8 + Rate-1) / Rate + |
| 574 | DEFAULT_SIFSTIME*3 ); |
| 575 | } |
| 576 | |
| 577 | ((PUSHORT)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration |
| 578 | |
| 579 | //----20061009 add by anson's endian |
| 580 | pNextT00->value = cpu_to_le32(pNextT00->value); |
| 581 | pT01->value = cpu_to_le32( pT01->value ); |
| 582 | //----end 20061009 add by anson's endian |
| 583 | |
| 584 | buffer += OffsetSize; |
| 585 | pT01 = (PT01_DESCRIPTOR)(buffer+4); |
| 586 | if (i != 1) //The last fragment will not have the next fragment |
| 587 | pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize); |
| 588 | } |
| 589 | |
| 590 | //===================================== |
| 591 | // Fill the last fragment descriptor |
| 592 | //===================================== |
| 593 | if( pT01->T01_modulation_type ) |
| 594 | { |
| 595 | //OFDM |
| 596 | // 1 SIFS + 1 ACK |
| 597 | // Rate : 24 Mega bps |
| 598 | // ACK frame length = 14 bytes |
| 599 | Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION; |
| 600 | //The Tx rate of ACK use 24M |
| 601 | Duration += (((112 + 22 + 95)/96)*Tsym + DEFAULT_SIFSTIME ); |
| 602 | } |
| 603 | else |
| 604 | { |
| 605 | // DSSS |
| 606 | // 1 ACK + 1 SIFS |
| 607 | // Rate : ?? Mega bps |
| 608 | // ACK frame length = 14 bytes(112 bits) |
| 609 | if( pT01->T01_plcp_header_length ) //long preamble |
| 610 | Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME; |
| 611 | else |
| 612 | Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME; |
| 613 | |
| 614 | Duration += ( (112 + Rate-1)/Rate + DEFAULT_SIFSTIME ); |
| 615 | } |
| 616 | } |
| 617 | |
| 618 | ((PUSHORT)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration |
| 619 | pT00->value = cpu_to_le32(pT00->value); |
| 620 | pT01->value = cpu_to_le32(pT01->value); |
| 621 | //--end 20061009 add |
| 622 | |
| 623 | } |
| 624 | |
| 625 | void MDS_EthernetPacketReceive( PADAPTER Adapter, PRXLAYER1 pRxLayer1 ) |
| 626 | { |
| 627 | OS_RECEIVE_PACKET_INDICATE( Adapter, pRxLayer1 ); |
| 628 | } |
| 629 | |
| 630 | |