diff options
Diffstat (limited to 'drivers/staging/winbond/mds.c')
| -rw-r--r-- | drivers/staging/winbond/mds.c | 630 |
1 files changed, 630 insertions, 0 deletions
diff --git a/drivers/staging/winbond/mds.c b/drivers/staging/winbond/mds.c new file mode 100644 index 00000000000..8ce6389c413 --- /dev/null +++ b/drivers/staging/winbond/mds.c @@ -0,0 +1,630 @@ +#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 ); +} + + |