| #include "os_common.h" |
| |
| void |
| Mds_reset_descriptor(PADAPTER Adapter) |
| { |
| PMDS pMds = &Adapter->Mds; |
| |
| pMds->TxPause = 0; |
| pMds->TxThreadCount = 0; |
| pMds->TxFillIndex = 0; |
| pMds->TxDesIndex = 0; |
| pMds->ScanTxPause = 0; |
| memset(pMds->TxOwner, 0, ((MAX_USB_TX_BUFFER_NUMBER + 3) & ~0x03)); |
| } |
| |
| unsigned char |
| Mds_initial(PADAPTER Adapter) |
| { |
| PMDS pMds = &Adapter->Mds; |
| |
| pMds->TxPause = FALSE; |
| pMds->TxRTSThreshold = DEFAULT_RTSThreshold; |
| pMds->TxFragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD; |
| |
| vRxTimerInit(Adapter);//for WPA countermeasure |
| |
| return hal_get_tx_buffer( &Adapter->sHwData, &pMds->pTxBuffer ); |
| } |
| |
| void |
| Mds_Destroy(PADAPTER Adapter) |
| { |
| vRxTimerStop(Adapter); |
| } |
| |
| void |
| Mds_Tx(PADAPTER Adapter) |
| { |
| phw_data_t pHwData = &Adapter->sHwData; |
| PMDS pMds = &Adapter->Mds; |
| DESCRIPTOR TxDes; |
| PDESCRIPTOR pTxDes = &TxDes; |
| PUCHAR XmitBufAddress; |
| u16 XmitBufSize, PacketSize, stmp, CurrentSize, FragmentThreshold; |
| u8 FillIndex, TxDesIndex, FragmentCount, FillCount; |
| unsigned char BufferFilled = FALSE, MICAdd = 0; |
| |
| |
| if (pMds->TxPause) |
| return; |
| if (!hal_driver_init_OK(pHwData)) |
| return; |
| |
| //Only one thread can be run here |
| if (!OS_ATOMIC_INC( Adapter, &pMds->TxThreadCount) == 1) |
| goto cleanup; |
| |
| // Start to fill the data |
| do { |
| FillIndex = pMds->TxFillIndex; |
| if (pMds->TxOwner[FillIndex]) { // Is owned by software 0:Yes 1:No |
| #ifdef _PE_TX_DUMP_ |
| WBDEBUG(("[Mds_Tx] Tx Owner is H/W.\n")); |
| #endif |
| break; |
| } |
| |
| XmitBufAddress = pMds->pTxBuffer + (MAX_USB_TX_BUFFER * FillIndex); //Get buffer |
| XmitBufSize = 0; |
| FillCount = 0; |
| do { |
| PacketSize = Adapter->sMlmeFrame.len; |
| if (!PacketSize) |
| break; |
| |
| //For Check the buffer resource |
| FragmentThreshold = CURRENT_FRAGMENT_THRESHOLD; |
| //931130.5.b |
| FragmentCount = PacketSize/FragmentThreshold + 1; |
| stmp = PacketSize + FragmentCount*32 + 8;//931130.5.c 8:MIC |
| if ((XmitBufSize + stmp) >= MAX_USB_TX_BUFFER) { |
| printk("[Mds_Tx] Excess max tx buffer.\n"); |
| break; // buffer is not enough |
| } |
| |
| |
| // |
| // Start transmitting |
| // |
| BufferFilled = TRUE; |
| |
| /* Leaves first u8 intact */ |
| memset((PUCHAR)pTxDes + 1, 0, sizeof(DESCRIPTOR) - 1); |
| |
| TxDesIndex = pMds->TxDesIndex;//Get the current ID |
| pTxDes->Descriptor_ID = TxDesIndex; |
| pMds->TxDesFrom[ TxDesIndex ] = 2;//Storing the information of source comming from |
| pMds->TxDesIndex++; |
| pMds->TxDesIndex %= MAX_USB_TX_DESCRIPTOR; |
| |
| MLME_GetNextPacket( Adapter, pTxDes ); |
| |
| // Copy header. 8byte USB + 24byte 802.11Hdr. Set TxRate, Preamble type |
| Mds_HeaderCopy( Adapter, pTxDes, XmitBufAddress ); |
| |
| // For speed up Key setting |
| if (pTxDes->EapFix) { |
| #ifdef _PE_TX_DUMP_ |
| WBDEBUG(("35: EPA 4th frame detected. Size = %d\n", PacketSize)); |
| #endif |
| pHwData->IsKeyPreSet = 1; |
| } |
| |
| // Copy (fragment) frame body, and set USB, 802.11 hdr flag |
| CurrentSize = Mds_BodyCopy(Adapter, pTxDes, XmitBufAddress); |
| |
| // Set RTS/CTS and Normal duration field into buffer |
| Mds_DurationSet(Adapter, pTxDes, XmitBufAddress); |
| |
| // |
| // Calculation MIC from buffer which maybe fragment, then fill into temporary address 8 byte |
| // 931130.5.e |
| if (MICAdd) |
| Mds_MicFill( Adapter, pTxDes, XmitBufAddress ); |
| |
| //Shift to the next address |
| XmitBufSize += CurrentSize; |
| XmitBufAddress += CurrentSize; |
| |
| #ifdef _IBSS_BEACON_SEQ_STICK_ |
| if ((XmitBufAddress[ DOT_11_DA_OFFSET+8 ] & 0xfc) != MAC_SUBTYPE_MNGMNT_PROBE_REQUEST) // +8 for USB hdr |
| #endif |
| pMds->TxToggle = TRUE; |
| |
| // Get packet to transmit completed, 1:TESTSTA 2:MLME 3: Ndis data |
| MLME_SendComplete(Adapter, 0, TRUE); |
| |
| // Software TSC count 20060214 |
| pMds->TxTsc++; |
| if (pMds->TxTsc == 0) |
| pMds->TxTsc_2++; |
| |
| FillCount++; // 20060928 |
| } while (HAL_USB_MODE_BURST(pHwData)); // End of multiple MSDU copy loop. FALSE = single TRUE = multiple sending |
| |
| // Move to the next one, if necessary |
| if (BufferFilled) { |
| // size setting |
| pMds->TxBufferSize[ FillIndex ] = XmitBufSize; |
| |
| // 20060928 set Tx count |
| pMds->TxCountInBuffer[FillIndex] = FillCount; |
| |
| // Set owner flag |
| pMds->TxOwner[FillIndex] = 1; |
| |
| pMds->TxFillIndex++; |
| pMds->TxFillIndex %= MAX_USB_TX_BUFFER_NUMBER; |
| BufferFilled = FALSE; |
| } else |
| break; |
| |
| if (!PacketSize) // No more pk for transmitting |
| break; |
| |
| } while(TRUE); |
| |
| // |
| // Start to send by lower module |
| // |
| if (!pHwData->IsKeyPreSet) |
| Wb35Tx_start(pHwData); |
| |
| cleanup: |
| OS_ATOMIC_DEC( Adapter, &pMds->TxThreadCount ); |
| } |
| |
| void |
| Mds_SendComplete(PADAPTER Adapter, PT02_DESCRIPTOR pT02) |
| { |
| PMDS pMds = &Adapter->Mds; |
| phw_data_t pHwData = &Adapter->sHwData; |
| u8 PacketId = (u8)pT02->T02_Tx_PktID; |
| unsigned char SendOK = TRUE; |
| u8 RetryCount, TxRate; |
| |
| if (pT02->T02_IgnoreResult) // Don't care the result |
| return; |
| if (pT02->T02_IsLastMpdu) { |
| //TODO: DTO -- get the retry count and fragment count |
| // Tx rate |
| TxRate = pMds->TxRate[ PacketId ][ 0 ]; |
| RetryCount = (u8)pT02->T02_MPDU_Cnt; |
| if (pT02->value & FLAG_ERROR_TX_MASK) { |
| SendOK = FALSE; |
| |
| if (pT02->T02_transmit_abort || pT02->T02_out_of_MaxTxMSDULiftTime) { |
| //retry error |
| pHwData->dto_tx_retry_count += (RetryCount+1); |
| //[for tx debug] |
| if (RetryCount<7) |
| pHwData->tx_retry_count[RetryCount] += RetryCount; |
| else |
| pHwData->tx_retry_count[7] += RetryCount; |
| #ifdef _PE_STATE_DUMP_ |
| WBDEBUG(("dto_tx_retry_count =%d\n", pHwData->dto_tx_retry_count)); |
| #endif |
| MTO_SetTxCount(Adapter, TxRate, RetryCount); |
| } |
| pHwData->dto_tx_frag_count += (RetryCount+1); |
| |
| //[for tx debug] |
| if (pT02->T02_transmit_abort_due_to_TBTT) |
| pHwData->tx_TBTT_start_count++; |
| if (pT02->T02_transmit_without_encryption_due_to_wep_on_false) |
| pHwData->tx_WepOn_false_count++; |
| if (pT02->T02_discard_due_to_null_wep_key) |
| pHwData->tx_Null_key_count++; |
| } else { |
| if (pT02->T02_effective_transmission_rate) |
| pHwData->tx_ETR_count++; |
| MTO_SetTxCount(Adapter, TxRate, RetryCount); |
| } |
| |
| // Clear send result buffer |
| pMds->TxResult[ PacketId ] = 0; |
| } else |
| pMds->TxResult[ PacketId ] |= ((u16)(pT02->value & 0x0ffff)); |
| } |
| |
| void |
| Mds_HeaderCopy(PADAPTER Adapter, PDESCRIPTOR pDes, PUCHAR TargetBuffer) |
| { |
| PMDS pMds = &Adapter->Mds; |
| PUCHAR src_buffer = pDes->buffer_address[0];//931130.5.g |
| PT00_DESCRIPTOR pT00; |
| PT01_DESCRIPTOR pT01; |
| u16 stmp; |
| u8 i, ctmp1, ctmp2, ctmpf; |
| u16 FragmentThreshold = CURRENT_FRAGMENT_THRESHOLD; |
| |
| |
| stmp = pDes->buffer_total_size; |
| // |
| // Set USB header 8 byte |
| // |
| pT00 = (PT00_DESCRIPTOR)TargetBuffer; |
| TargetBuffer += 4; |
| pT01 = (PT01_DESCRIPTOR)TargetBuffer; |
| TargetBuffer += 4; |
| |
| pT00->value = 0;// Clear |
| pT01->value = 0;// Clear |
| |
| pT00->T00_tx_packet_id = pDes->Descriptor_ID;// Set packet ID |
| pT00->T00_header_length = 24;// Set header length |
| pT01->T01_retry_abort_ebable = 1;//921013 931130.5.h |
| |
| // Key ID setup |
| pT01->T01_wep_id = 0; |
| |
| FragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD; //Do not fragment |
| // Copy full data, the 1'st buffer contain all the data 931130.5.j |
| memcpy( TargetBuffer, src_buffer, DOT_11_MAC_HEADER_SIZE );// Copy header |
| pDes->buffer_address[0] = src_buffer + DOT_11_MAC_HEADER_SIZE; |
| pDes->buffer_total_size -= DOT_11_MAC_HEADER_SIZE; |
| pDes->buffer_size[0] = pDes->buffer_total_size; |
| |
| // Set fragment threshold |
| FragmentThreshold -= (DOT_11_MAC_HEADER_SIZE + 4); |
| pDes->FragmentThreshold = FragmentThreshold; |
| |
| // Set more frag bit |
| TargetBuffer[1] |= 0x04;// Set more frag bit |
| |
| // |
| // Set tx rate |
| // |
| stmp = *(PUSHORT)(TargetBuffer+30); // 2n alignment address |
| |
| //Use basic rate |
| ctmp1 = ctmpf = CURRENT_TX_RATE_FOR_MNG; |
| |
| pDes->TxRate = ctmp1; |
| #ifdef _PE_TX_DUMP_ |
| WBDEBUG(("Tx rate =%x\n", ctmp1)); |
| #endif |
| |
| pT01->T01_modulation_type = (ctmp1%3) ? 0 : 1; |
| |
| for( i=0; i<2; i++ ) { |
| if( i == 1 ) |
| ctmp1 = ctmpf; |
| |
| pMds->TxRate[pDes->Descriptor_ID][i] = ctmp1; // backup the ta rate and fall back rate |
| |
| if( ctmp1 == 108) ctmp2 = 7; |
| else if( ctmp1 == 96 ) ctmp2 = 6; // Rate convert for USB |
| else if( ctmp1 == 72 ) ctmp2 = 5; |
| else if( ctmp1 == 48 ) ctmp2 = 4; |
| else if( ctmp1 == 36 ) ctmp2 = 3; |
| else if( ctmp1 == 24 ) ctmp2 = 2; |
| else if( ctmp1 == 18 ) ctmp2 = 1; |
| else if( ctmp1 == 12 ) ctmp2 = 0; |
| else if( ctmp1 == 22 ) ctmp2 = 3; |
| else if( ctmp1 == 11 ) ctmp2 = 2; |
| else if( ctmp1 == 4 ) ctmp2 = 1; |
| else ctmp2 = 0; // if( ctmp1 == 2 ) or default |
| |
| if( i == 0 ) |
| pT01->T01_transmit_rate = ctmp2; |
| else |
| pT01->T01_fall_back_rate = ctmp2; |
| } |
| |
| // |
| // Set preamble type |
| // |
| if ((pT01->T01_modulation_type == 0) && (pT01->T01_transmit_rate == 0)) // RATE_1M |
| pDes->PreambleMode = WLAN_PREAMBLE_TYPE_LONG; |
| else |
| pDes->PreambleMode = CURRENT_PREAMBLE_MODE; |
| pT01->T01_plcp_header_length = pDes->PreambleMode; // Set preamble |
| |
| } |
| |
| // The function return the 4n size of usb pk |
| u16 |
| Mds_BodyCopy(PADAPTER Adapter, PDESCRIPTOR pDes, PUCHAR TargetBuffer) |
| { |
| PT00_DESCRIPTOR pT00; |
| PMDS pMds = &Adapter->Mds; |
| PUCHAR buffer, src_buffer, pctmp; |
| u16 Size = 0; |
| u16 SizeLeft, CopySize, CopyLeft, stmp; |
| u8 buf_index, FragmentCount = 0; |
| |
| |
| // Copy fragment body |
| buffer = TargetBuffer; // shift 8B usb + 24B 802.11 |
| SizeLeft = pDes->buffer_total_size; |
| buf_index = pDes->buffer_start_index; |
| |
| pT00 = (PT00_DESCRIPTOR)buffer; |
| while (SizeLeft) { |
| pT00 = (PT00_DESCRIPTOR)buffer; |
| CopySize = SizeLeft; |
| if (SizeLeft > pDes->FragmentThreshold) { |
| CopySize = pDes->FragmentThreshold; |
| pT00->T00_frame_length = 24 + CopySize;//Set USB length |
| } else |
| pT00->T00_frame_length = 24 + SizeLeft;//Set USB length |
| |
| SizeLeft -= CopySize; |
| |
| // 1 Byte operation |
| pctmp = (PUCHAR)( buffer + 8 + DOT_11_SEQUENCE_OFFSET ); |
| *pctmp &= 0xf0; |
| *pctmp |= FragmentCount;//931130.5.m |
| if( !FragmentCount ) |
| pT00->T00_first_mpdu = 1; |
| |
| buffer += 32; // 8B usb + 24B 802.11 header |
| Size += 32; |
| |
| // Copy into buffer |
| stmp = CopySize + 3; |
| stmp &= ~0x03;//4n Alignment |
| Size += stmp;// Current 4n offset of mpdu |
| |
| while (CopySize) { |
| // Copy body |
| src_buffer = pDes->buffer_address[buf_index]; |
| CopyLeft = CopySize; |
| if (CopySize >= pDes->buffer_size[buf_index]) { |
| CopyLeft = pDes->buffer_size[buf_index]; |
| |
| // Get the next buffer of descriptor |
| buf_index++; |
| buf_index %= MAX_DESCRIPTOR_BUFFER_INDEX; |
| } else { |
| PUCHAR pctmp = pDes->buffer_address[buf_index]; |
| pctmp += CopySize; |
| pDes->buffer_address[buf_index] = pctmp; |
| pDes->buffer_size[buf_index] -= CopySize; |
| } |
| |
| memcpy(buffer, src_buffer, CopyLeft); |
| buffer += CopyLeft; |
| CopySize -= CopyLeft; |
| } |
| |
| // 931130.5.n |
| if (pMds->MicAdd) { |
| if (!SizeLeft) { |
| pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - pMds->MicAdd; |
| pMds->MicWriteSize[ pMds->MicWriteIndex ] = pMds->MicAdd; |
| pMds->MicAdd = 0; |
| } |
| else if( SizeLeft < 8 ) //931130.5.p |
| { |
| pMds->MicAdd = SizeLeft; |
| pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - ( 8 - SizeLeft ); |
| pMds->MicWriteSize[ pMds->MicWriteIndex ] = 8 - SizeLeft; |
| pMds->MicWriteIndex++; |
| } |
| } |
| |
| // Does it need to generate the new header for next mpdu? |
| if (SizeLeft) { |
| buffer = TargetBuffer + Size; // Get the next 4n start address |
| memcpy( buffer, TargetBuffer, 32 );//Copy 8B USB +24B 802.11 |
| pT00 = (PT00_DESCRIPTOR)buffer; |
| pT00->T00_first_mpdu = 0; |
| } |
| |
| FragmentCount++; |
| } |
| |
| pT00->T00_last_mpdu = 1; |
| pT00->T00_IsLastMpdu = 1; |
| buffer = (PUCHAR)pT00 + 8; // +8 for USB hdr |
| buffer[1] &= ~0x04; // Clear more frag bit of 802.11 frame control |
| pDes->FragmentCount = FragmentCount; // Update the correct fragment number |
| return Size; |
| } |
| |
| |
| void |
| Mds_DurationSet( PADAPTER Adapter, PDESCRIPTOR pDes, PUCHAR buffer ) |
| { |
| PT00_DESCRIPTOR pT00; |
| PT01_DESCRIPTOR pT01; |
| u16 Duration, NextBodyLen, OffsetSize; |
| u8 Rate, i; |
| unsigned char CTS_on = FALSE, RTS_on = FALSE; |
| PT00_DESCRIPTOR pNextT00; |
| u16 BodyLen; |
| unsigned char boGroupAddr = FALSE; |
| |
| |
| OffsetSize = pDes->FragmentThreshold + 32 + 3; |
| OffsetSize &= ~0x03; |
| Rate = pDes->TxRate >> 1; |
| if (!Rate) |
| Rate = 1; |
| |
| pT00 = (PT00_DESCRIPTOR)buffer; |
| pT01 = (PT01_DESCRIPTOR)(buffer+4); |
| pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize); |
| |
| if( buffer[ DOT_11_DA_OFFSET+8 ] & 0x1 ) // +8 for USB hdr |
| boGroupAddr = TRUE; |
| |
| //======================================== |
| // Set RTS/CTS mechanism |
| //======================================== |
| if (!boGroupAddr) |
| { |
| //NOTE : If the protection mode is enabled and the MSDU will be fragmented, |
| // the tx rates of MPDUs will all be DSSS rates. So it will not use |
| // CTS-to-self in this case. CTS-To-self will only be used when without |
| // fragmentation. -- 20050112 |
| BodyLen = (u16)pT00->T00_frame_length; //include 802.11 header |
| BodyLen += 4; //CRC |
| |
| if( BodyLen >= CURRENT_RTS_THRESHOLD ) |
| RTS_on = TRUE; // Using RTS |
| else |
| { |
| if( pT01->T01_modulation_type ) // Is using OFDM |
| { |
| if( CURRENT_PROTECT_MECHANISM ) // Is using protect |
| CTS_on = TRUE; // Using CTS |
| } |
| } |
| } |
| |
| if( RTS_on || CTS_on ) |
| { |
| if( pT01->T01_modulation_type) // Is using OFDM |
| { |
| //CTS duration |
| // 2 SIFS + DATA transmit time + 1 ACK |
| // ACK Rate : 24 Mega bps |
| // ACK frame length = 14 bytes |
| Duration = 2*DEFAULT_SIFSTIME + |
| 2*PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION + |
| ((BodyLen*8 + 22 + Rate*4 - 1)/(Rate*4))*Tsym + |
| ((112 + 22 + 95)/96)*Tsym; |
| } |
| else //DSSS |
| { |
| //CTS duration |
| // 2 SIFS + DATA transmit time + 1 ACK |
| // Rate : ?? Mega bps |
| // ACK frame length = 14 bytes |
| if( pT01->T01_plcp_header_length ) //long preamble |
| Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*2; |
| else |
| Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*2; |
| |
| Duration += ( ((BodyLen + 14)*8 + Rate-1) / Rate + |
| DEFAULT_SIFSTIME*2 ); |
| } |
| |
| if( RTS_on ) |
| { |
| if( pT01->T01_modulation_type ) // Is using OFDM |
| { |
| //CTS + 1 SIFS + CTS duration |
| //CTS Rate : 24 Mega bps |
| //CTS frame length = 14 bytes |
| Duration += (DEFAULT_SIFSTIME + |
| PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION + |
| ((112 + 22 + 95)/96)*Tsym); |
| } |
| else |
| { |
| //CTS + 1 SIFS + CTS duration |
| //CTS Rate : ?? Mega bps |
| //CTS frame length = 14 bytes |
| if( pT01->T01_plcp_header_length ) //long preamble |
| Duration += LONG_PREAMBLE_PLUS_PLCPHEADER_TIME; |
| else |
| Duration += SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME; |
| |
| Duration += ( ((112 + Rate-1) / Rate) + DEFAULT_SIFSTIME ); |
| } |
| } |
| |
| // Set the value into USB descriptor |
| pT01->T01_add_rts = RTS_on ? 1 : 0; |
| pT01->T01_add_cts = CTS_on ? 1 : 0; |
| pT01->T01_rts_cts_duration = Duration; |
| } |
| |
| //===================================== |
| // Fill the more fragment descriptor |
| //===================================== |
| if( boGroupAddr ) |
| Duration = 0; |
| else |
| { |
| for( i=pDes->FragmentCount-1; i>0; i-- ) |
| { |
| NextBodyLen = (u16)pNextT00->T00_frame_length; |
| NextBodyLen += 4; //CRC |
| |
| if( pT01->T01_modulation_type ) |
| { |
| //OFDM |
| // data transmit time + 3 SIFS + 2 ACK |
| // Rate : ??Mega bps |
| // ACK frame length = 14 bytes, tx rate = 24M |
| Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION * 3; |
| Duration += (((NextBodyLen*8 + 22 + Rate*4 - 1)/(Rate*4)) * Tsym + |
| (((2*14)*8 + 22 + 95)/96)*Tsym + |
| DEFAULT_SIFSTIME*3); |
| } |
| else |
| { |
| //DSSS |
| // data transmit time + 2 ACK + 3 SIFS |
| // Rate : ??Mega bps |
| // ACK frame length = 14 bytes |
| //TODO : |
| if( pT01->T01_plcp_header_length ) //long preamble |
| Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*3; |
| else |
| Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*3; |
| |
| Duration += ( ((NextBodyLen + (2*14))*8 + Rate-1) / Rate + |
| DEFAULT_SIFSTIME*3 ); |
| } |
| |
| ((PUSHORT)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration |
| |
| //----20061009 add by anson's endian |
| pNextT00->value = cpu_to_le32(pNextT00->value); |
| pT01->value = cpu_to_le32( pT01->value ); |
| //----end 20061009 add by anson's endian |
| |
| buffer += OffsetSize; |
| pT01 = (PT01_DESCRIPTOR)(buffer+4); |
| if (i != 1) //The last fragment will not have the next fragment |
| pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize); |
| } |
| |
| //===================================== |
| // Fill the last fragment descriptor |
| //===================================== |
| if( pT01->T01_modulation_type ) |
| { |
| //OFDM |
| // 1 SIFS + 1 ACK |
| // Rate : 24 Mega bps |
| // ACK frame length = 14 bytes |
| Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION; |
| //The Tx rate of ACK use 24M |
| Duration += (((112 + 22 + 95)/96)*Tsym + DEFAULT_SIFSTIME ); |
| } |
| else |
| { |
| // DSSS |
| // 1 ACK + 1 SIFS |
| // Rate : ?? Mega bps |
| // ACK frame length = 14 bytes(112 bits) |
| if( pT01->T01_plcp_header_length ) //long preamble |
| Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME; |
| else |
| Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME; |
| |
| Duration += ( (112 + Rate-1)/Rate + DEFAULT_SIFSTIME ); |
| } |
| } |
| |
| ((PUSHORT)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration |
| pT00->value = cpu_to_le32(pT00->value); |
| pT01->value = cpu_to_le32(pT01->value); |
| //--end 20061009 add |
| |
| } |
| |
| void MDS_EthernetPacketReceive( PADAPTER Adapter, PRXLAYER1 pRxLayer1 ) |
| { |
| OS_RECEIVE_PACKET_INDICATE( Adapter, pRxLayer1 ); |
| } |
| |
| |