/*++ Copyright (c) 1994 - Arcada Software Inc. - All rights reserved Module Name: tandqic.c Abstract: This module contains device specific routines for Tandberg QIC drives with SCSI-2 interfaces -- TDC 4222, TDC 4220, TDC 4120, TDC 3820, and TDC 3660. Author: Mike Colandreo (Arcada) Environment: kernel mode only Revision History: --*/ #include "minitape.h" #undef DebugPrint #define DebugPrint(foo) // // Internal (module wide) defines that symbolize // non-QFA mode and the two QFA mode partitions. // #define NO_PARTITIONS 0 // non-QFA mode #define DIRECTORY_PARTITION 1 // QFA mode, directory partition # #define DATA_PARTITION 2 // QFA mode, data partition # // // Internal (module wide) defines that symbolize // the Tandberg QIC drives supported by this module. // #define TDC_3600 (ULONG)1 // aka the TDC 3660 #define TDC_3800 (ULONG)2 // aka the TDC 3820 #define TDC_4100 (ULONG)3 // aka the TDC 4120 #define TDC_4200 (ULONG)4 // aka the TDC 4220 #define TDC_4222 (ULONG)5 // aka the TDC 4222 #define IBM_4100 (ULONG)6 // aka the TDC 4120 // // Minitape extension definition. // typedef struct _MINITAPE_EXTENSION { ULONG DriveID ; ULONG CurrentPartition ; BOOLEAN CompressionOn ; } MINITAPE_EXTENSION, *PMINITAPE_EXTENSION ; // // Command extension definition. // typedef struct _COMMAND_EXTENSION { ULONG CurrentState; UCHAR densityCode; UCHAR mediumType; ULONG tapeBlockLength; BOOLEAN changePartition ; ULONG psudo_space_count ; ULONG pos_type ; } COMMAND_EXTENSION, *PCOMMAND_EXTENSION; // // Function Prototype(s) for internal function(s) // static ULONG WhichIsIt(IN PINQUIRYDATA InquiryData); BOOLEAN VerifyInquiry( IN PINQUIRYDATA InquiryData, IN PMODE_CAPABILITIES_PAGE ModeCapabilitiesPage ); VOID ExtensionInit( OUT PVOID MinitapeExtension, IN PINQUIRYDATA InquiryData, IN PMODE_CAPABILITIES_PAGE ModeCapabilitiesPage ); TAPE_STATUS CreatePartition( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS Erase( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS GetDriveParameters( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS GetMediaParameters( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS GetPosition( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS GetStatus( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS Prepare( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS SetDriveParameters( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS SetMediaParameters( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS SetPosition( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); TAPE_STATUS WriteMarks( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ); VOID TapeError( IN OUT PVOID MinitapeExtension, IN OUT PSCSI_REQUEST_BLOCK Srb, IN OUT TAPE_STATUS *LastError ); ULONG DriverEntry( IN PVOID Argument1, IN PVOID Argument2 ) /*++ Routine Description: Driver entry point for tape minitape driver. Arguments: Argument1 - Supplies the first argument. Argument2 - Supplies the second argument. Return Value: Status from TapeClassInitialize() --*/ { TAPE_INIT_DATA tapeInitData; TapeClassZeroMemory( &tapeInitData, sizeof(TAPE_INIT_DATA)); tapeInitData.VerifyInquiry = VerifyInquiry; tapeInitData.QueryModeCapabilitiesPage = FALSE ; tapeInitData.MinitapeExtensionSize = sizeof(MINITAPE_EXTENSION); tapeInitData.ExtensionInit = ExtensionInit; tapeInitData.DefaultTimeOutValue = 360; tapeInitData.TapeError = TapeError ; tapeInitData.CommandExtensionSize = sizeof(COMMAND_EXTENSION); tapeInitData.CreatePartition = CreatePartition; tapeInitData.Erase = Erase; tapeInitData.GetDriveParameters = GetDriveParameters; tapeInitData.GetMediaParameters = GetMediaParameters; tapeInitData.GetPosition = GetPosition; tapeInitData.GetStatus = GetStatus; tapeInitData.Prepare = Prepare; tapeInitData.SetDriveParameters = SetDriveParameters; tapeInitData.SetMediaParameters = SetMediaParameters; tapeInitData.SetPosition = SetPosition; tapeInitData.WriteMarks = WriteMarks; return TapeClassInitialize(Argument1, Argument2, &tapeInitData); } BOOLEAN VerifyInquiry( IN PINQUIRYDATA InquiryData, IN PMODE_CAPABILITIES_PAGE ModeCapabilitiesPage ) /*++ Routine Description: This routine examines the given inquiry data to determine whether or not the given device is one that may be controller by this driver. Arguments: InquiryData - Supplies the SCSI inquiry data. Return Value: FALSE - This driver does not recognize the given device. TRUE - This driver recognizes the given device. --*/ { return WhichIsIt(InquiryData) ? TRUE : FALSE; } VOID ExtensionInit( OUT PVOID MinitapeExtension, IN PINQUIRYDATA InquiryData, IN PMODE_CAPABILITIES_PAGE ModeCapabilitiesPage ) /*++ Routine Description: This routine is called at driver initialization time to initialize the minitape extension. Arguments: MinitapeExtension - Supplies the minitape extension. Return Value: None. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; extension->DriveID = WhichIsIt(InquiryData); extension->CurrentPartition = 0 ; extension->CompressionOn = FALSE ; } TAPE_STATUS CreatePartition( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Create Partition requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; PCOMMAND_EXTENSION tapeCmdExtension = CommandExtension ; PTAPE_CREATE_PARTITION tapePartition = CommandParameters; PMODE_MEDIUM_PART_PAGE buffer; PCDB cdb = (PCDB) Srb->Cdb; // // Only support 2 partitions, QFA mode // Partition 1 = Used as directory // Partition 0 = used as data // // Note that 0 & 1 are partition numbers used // by the drive -- they are not tape API partition // numbers. // DebugPrint((3,"TapeCreatePartition: Enter routine\n")); if (CallNumber == 0) { switch (tapePartition->Method) { case TAPE_FIXED_PARTITIONS: DebugPrint((3,"TapeCreatePartition: fixed partitions\n")); break; case TAPE_SELECT_PARTITIONS: case TAPE_INITIATOR_PARTITIONS: default: DebugPrint((1,"TapeCreatePartition: ")); DebugPrint((1,"PartitionMethod -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } // // Must rewind to BOT before one can enable/disable QFA mode. // Changing the value of the FDP bit is only valid at BOT. // FDP bit is used to enable/disable "additional partitions" // (mode sense command). // DebugPrint((3,"TapeCreatePartition: SendSrb (rewind)\n")); // // Prepare SCSI command (CDB) // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); Srb->CdbLength = CDB6GENERIC_LENGTH; cdb->CDB6INQUIRY.OperationCode = SCSIOP_REWIND; // // Set timeout value. // Srb->TimeOutValue = 320; Srb->DataTransferLength = 0 ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 1 ) { // // Performing mode select command, medium partition parameters page, // to enable/disable QFA mode: set the FDP bit accordingly. // if (!TapeClassAllocateSrbBuffer( Srb,sizeof(MODE_MEDIUM_PART_PAGE)) ) { DebugPrint((1,"TapeCreatePartition: insufficient resources (buffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } buffer = Srb->DataBuffer ; buffer->ParameterListHeader.DeviceSpecificParameter = 0x10; buffer->MediumPartPage.PageCode = MODE_PAGE_MEDIUM_PARTITION; buffer->MediumPartPage.PageLength = 0x06; buffer->MediumPartPage.MaximumAdditionalPartitions = 1; // // Setup FDP bit to enable/disable "additional partition". // if (tapePartition->Count == 0) { buffer->MediumPartPage.FDPBit = SETBITOFF; } else { buffer->MediumPartPage.FDPBit = SETBITON; } // // Prepare SCSI command (CDB) // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); Srb->CdbLength = CDB6GENERIC_LENGTH; cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT; cdb->MODE_SELECT.PFBit = SETBITON; cdb->MODE_SELECT.ParameterListLength = sizeof(MODE_MEDIUM_PART_PAGE) - 4; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeCreatePartition: SendSrb (mode select)\n")); Srb->DataTransferLength = sizeof(MODE_MEDIUM_PART_PAGE) - 4; Srb->SrbFlags |= SRB_FLAGS_DATA_OUT ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } ASSERT( CallNumber == 2 ) ; if (tapePartition->Count == 0) { extension->CurrentPartition = NO_PARTITIONS; DebugPrint((3,"TapeCreatePartition: QFA disabled\n")); } else { extension->CurrentPartition = DATA_PARTITION; DebugPrint((3,"TapeCreatePartition: QFA enabled\n")); } return TAPE_STATUS_SUCCESS; } // end TapeCreatePartition() TAPE_STATUS Erase( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for an Erase requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; PTAPE_ERASE tapeErase = CommandParameters; PCDB cdb = (PCDB) Srb->Cdb; DebugPrint((3,"TapeErase: Enter routine\n")); if (CallNumber == 0) { if (tapeErase->Immediate) { switch (tapeErase->Type) { case TAPE_ERASE_LONG: DebugPrint((3,"TapeErase: immediate\n")); break; case TAPE_ERASE_SHORT: default: DebugPrint((1,"TapeErase: EraseType, immediate -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } } switch (tapeErase->Type) { case TAPE_ERASE_LONG: DebugPrint((3,"TapeErase: long\n")); break; case TAPE_ERASE_SHORT: default: DebugPrint((1,"TapeErase: EraseType -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->ERASE.OperationCode = SCSIOP_ERASE; cdb->ERASE.Immediate = tapeErase->Immediate; cdb->ERASE.Long = SETBITON; Srb->TimeOutValue = 320; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeErase: SendSrb (erase)\n")); Srb->DataTransferLength = 0 ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } ASSERT( CallNumber == 1 ) ; if (extension->CurrentPartition) { extension->CurrentPartition = DATA_PARTITION; } return TAPE_STATUS_SUCCESS ; } // end TapeErase() VOID TapeError( IN OUT PVOID MinitapeExtension, IN OUT PSCSI_REQUEST_BLOCK Srb, IN TAPE_STATUS *LastError ) /*++ Routine Description: This routine is called for tape requests, to handle tape specific errors: it may/can update the status. Arguments: MinitapeExtension - Supplies the minitape extension. Srb - Supplies the SCSI request block. LastError - Status used to set the IRP's completion status. Retry - Indicates that this request should be retried. Return Value: None. --*/ { PSENSE_DATA senseBuffer = Srb->SenseInfoBuffer; UCHAR sensekey = senseBuffer->SenseKey & 0x0F; UCHAR adsenseq = senseBuffer->AdditionalSenseCodeQualifier; UCHAR adsense = senseBuffer->AdditionalSenseCode; DebugPrint((3,"TapeError: Enter routine\n")); DebugPrint((1,"TapeError: Status 0x%.8X\n", *LastError)); return; } // end TapeError() TAPE_STATUS GetDriveParameters( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Get Drive Parameters requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; PCOMMAND_EXTENSION cmdExtension = CommandExtension; PTAPE_GET_DRIVE_PARAMETERS tapeGetDriveParams = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; PINQUIRYDATA inquiryBuffer; PMODE_DEVICE_CONFIG_PAGE deviceConfigModeSenseBuffer; PMODE_DATA_COMPRESS_PAGE compressionModeSenseBuffer; PREAD_BLOCK_LIMITS_DATA blockLimits; PMODE_PARM_READ_WRITE_DATA blockDescripterModeSenseBuffer; DebugPrint((3,"TapeGetDriveParameters: Enter routine\n")); if (CallNumber == 0) { TapeClassZeroMemory(tapeGetDriveParams, sizeof(TAPE_GET_DRIVE_PARAMETERS)); switch (extension->DriveID) { case TDC_4100: case IBM_4100: case TDC_4200: case TDC_4222: if (!TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_DEVICE_CONFIG_PAGE)) ) { DebugPrint((1,"TapeGetDriveParameters: insufficient resources (deviceConfigModeSenseBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } deviceConfigModeSenseBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.Dbd = SETBITON; cdb->MODE_SENSE.PageCode = MODE_PAGE_DEVICE_CONFIG; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_DEVICE_CONFIG_PAGE); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetDriveParameters: SendSrb (mode sense)\n")); Srb->DataTransferLength = sizeof(MODE_DEVICE_CONFIG_PAGE) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; default: return TAPE_STATUS_CALLBACK ; } } if ( CallNumber == 1 ) { deviceConfigModeSenseBuffer = Srb->DataBuffer ; if ( extension->DriveID != IBM_4100 ) { tapeGetDriveParams->FeaturesLow |= TAPE_DRIVE_REPORT_SMKS; tapeGetDriveParams->FeaturesHigh |= TAPE_DRIVE_SETMARKS | TAPE_DRIVE_WRITE_SETMARKS; } tapeGetDriveParams->ReportSetmarks = FALSE ; if (( LastError == TAPE_STATUS_SUCCESS ) && (deviceConfigModeSenseBuffer->DeviceConfigPage.RSmk) ) { tapeGetDriveParams->ReportSetmarks = TRUE ; } if (!TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_PARM_READ_WRITE_DATA)) ) { DebugPrint((1,"TapeGetDriveParameters: insufficient resources (blockDescripterModeSenseBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } blockDescripterModeSenseBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_PARM_READ_WRITE_DATA); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetDriveParameters: SendSrb (mode sense)\n")); Srb->DataTransferLength = sizeof(MODE_PARM_READ_WRITE_DATA) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 2 ) { blockDescripterModeSenseBuffer = Srb->DataBuffer ; cmdExtension->mediumType = blockDescripterModeSenseBuffer->ParameterListHeader.MediumType; cmdExtension->densityCode= blockDescripterModeSenseBuffer->ParameterListBlock.DensityCode; switch (cmdExtension->mediumType) { case 1: cmdExtension->mediumType = DC600; break; case 2: cmdExtension->mediumType = DC6150; break; case 3: cmdExtension->mediumType = DC6320; break; } if (extension->DriveID == TDC_4222) { if (!TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_DATA_COMPRESS_PAGE)) ) { DebugPrint((1,"TapeGetDriveParameters: insufficient resources (compressionModeSenseBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } compressionModeSenseBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.Dbd = SETBITON; cdb->MODE_SENSE.PageCode = MODE_PAGE_DATA_COMPRESS; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_DATA_COMPRESS_PAGE); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetDriveParameters: SendSrb (mode sense)\n")); Srb->DataTransferLength = sizeof(MODE_DATA_COMPRESS_PAGE) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } else { return TAPE_STATUS_CALLBACK ; } } if ( CallNumber == 3 ) { if ( LastError == TAPE_STATUS_CALLBACK ) { return TAPE_STATUS_CALLBACK ; } compressionModeSenseBuffer = Srb->DataBuffer ; if (!cmdExtension->densityCode) { switch (cmdExtension->mediumType) { case DC9200SL: case DC9200: case DC9200XL: cmdExtension->densityCode = QIC_2GB; break; } if (cmdExtension->densityCode == QIC_2GB) { tapeGetDriveParams->FeaturesLow |= TAPE_DRIVE_COMPRESSION; tapeGetDriveParams->FeaturesHigh |= TAPE_DRIVE_SET_COMPRESSION; tapeGetDriveParams->Compression = (BOOLEAN)extension->CompressionOn ; } } return TAPE_STATUS_CALLBACK ; } if ( CallNumber == 4 ) { if (!TapeClassAllocateSrbBuffer( Srb, sizeof(READ_BLOCK_LIMITS_DATA)) ) { DebugPrint((1,"TapeGetDriveParameters: insufficient resources (blockLimitsBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } blockLimits = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->CDB6GENERIC.OperationCode = SCSIOP_READ_BLOCK_LIMITS; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetDriveParameters: SendSrb (read block limits)\n")); Srb->DataTransferLength = sizeof(READ_BLOCK_LIMITS_DATA) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } ASSERT( CallNumber == 5 ) ; blockLimits = Srb->DataBuffer ; tapeGetDriveParams->MaximumBlockSize = blockLimits->BlockMaximumSize[2]; tapeGetDriveParams->MaximumBlockSize += (blockLimits->BlockMaximumSize[1] << 8); tapeGetDriveParams->MaximumBlockSize += (blockLimits->BlockMaximumSize[0] << 16); tapeGetDriveParams->MinimumBlockSize = blockLimits->BlockMinimumSize[1]; tapeGetDriveParams->MinimumBlockSize += (blockLimits->BlockMinimumSize[0] << 8); tapeGetDriveParams->ECC = 0; tapeGetDriveParams->DataPadding = 0; tapeGetDriveParams->MaximumPartitionCount = 2; switch (cmdExtension->densityCode) { case QIC_XX: switch (cmdExtension->mediumType) { case DC6320: case DC6525: case DC9100: case DC9120: case DC9120SL: case DC9120XL: case DC9200SL: case DC9200: case DC9200XL: tapeGetDriveParams->DefaultBlockSize = 1024; break; default: tapeGetDriveParams->DefaultBlockSize = 512; break; } break; case QIC_525: case QIC_1000: case QIC_2GB: tapeGetDriveParams->DefaultBlockSize = 1024; break; default: tapeGetDriveParams->DefaultBlockSize = 512; break; } if ( ( extension->DriveID != TDC_3600) && (extension->DriveID != IBM_4100) ) { tapeGetDriveParams->FeaturesLow |= TAPE_DRIVE_VARIABLE_BLOCK; tapeGetDriveParams->FeaturesHigh |= TAPE_DRIVE_SET_BLOCK_SIZE; } tapeGetDriveParams->FeaturesLow |= TAPE_DRIVE_FIXED | TAPE_DRIVE_ERASE_LONG | TAPE_DRIVE_ERASE_BOP_ONLY | TAPE_DRIVE_ERASE_IMMEDIATE | TAPE_DRIVE_FIXED_BLOCK | TAPE_DRIVE_WRITE_PROTECT | TAPE_DRIVE_GET_ABSOLUTE_BLK | TAPE_DRIVE_GET_LOGICAL_BLK; tapeGetDriveParams->FeaturesHigh |= TAPE_DRIVE_LOAD_UNLOAD | TAPE_DRIVE_TENSION | TAPE_DRIVE_LOCK_UNLOCK | TAPE_DRIVE_REWIND_IMMEDIATE | TAPE_DRIVE_LOAD_UNLD_IMMED | TAPE_DRIVE_TENSION_IMMED | TAPE_DRIVE_ABSOLUTE_BLK | TAPE_DRIVE_LOGICAL_BLK | TAPE_DRIVE_END_OF_DATA | TAPE_DRIVE_RELATIVE_BLKS | TAPE_DRIVE_FILEMARKS | TAPE_DRIVE_SEQUENTIAL_FMKS | TAPE_DRIVE_REVERSE_POSITION | TAPE_DRIVE_WRITE_FILEMARKS | TAPE_DRIVE_WRITE_MARK_IMMED; tapeGetDriveParams->FeaturesHigh &= ~TAPE_DRIVE_HIGH_FEATURES; DebugPrint((3,"TapeGetDriveParameters: FeaturesLow == 0x%.8X\n", tapeGetDriveParams->FeaturesLow)); DebugPrint((3,"TapeGetDriveParameters: FeaturesHigh == 0x%.8X\n", tapeGetDriveParams->FeaturesHigh)); return TAPE_STATUS_SUCCESS; } // end TapeGetDriveParameters() TAPE_STATUS GetMediaParameters( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Get Media Parameters requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; PTAPE_GET_MEDIA_PARAMETERS tapeGetMediaParams = CommandParameters; PMODE_TAPE_MEDIA_INFORMATION mediaInfoBuffer; PMODE_DEVICE_CONFIG_PAGE deviceConfigBuffer; PMODE_PARM_READ_WRITE_DATA rwparametersModeSenseBuffer; PCDB cdb = (PCDB)Srb->Cdb; BOOLEAN qfaMode; DebugPrint((3,"TapeGetMediaParameters: Enter routine\n")); if (CallNumber == 0) { TapeClassZeroMemory(tapeGetMediaParams, sizeof(TAPE_GET_MEDIA_PARAMETERS)); return TAPE_STATUS_CHECK_TEST_UNIT_READY; } if (CallNumber == 1) { if (!TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_TAPE_MEDIA_INFORMATION)) ) { DebugPrint((1,"TapeGetMediaParameters: insufficient resources (mediaInfoBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } mediaInfoBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.PageCode = MODE_PAGE_MEDIUM_PARTITION; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_TAPE_MEDIA_INFORMATION) - 4; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetMediaParameters: SendSrb (mode sense #1)\n")); Srb->DataTransferLength = sizeof(MODE_TAPE_MEDIA_INFORMATION) - 4 ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 2 ) { mediaInfoBuffer = Srb->DataBuffer ; tapeGetMediaParams->BlockSize = mediaInfoBuffer->ParameterListBlock.BlockLength[2]; tapeGetMediaParams->BlockSize += (mediaInfoBuffer->ParameterListBlock.BlockLength[1] << 8); tapeGetMediaParams->BlockSize += (mediaInfoBuffer->ParameterListBlock.BlockLength[0] << 16); tapeGetMediaParams->WriteProtected = ((mediaInfoBuffer->ParameterListHeader.DeviceSpecificParameter >> 7) & 0x01); if (!mediaInfoBuffer->MediumPartPage.FDPBit) { tapeGetMediaParams->PartitionCount = 1 ; extension->CurrentPartition = NO_PARTITIONS; return TAPE_STATUS_SUCCESS ; } else { if ( !TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_DEVICE_CONFIG_PAGE)) ) { DebugPrint((1,"TapeGetMediaParameters: insufficient resources (deviceConfigBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } deviceConfigBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.Dbd = SETBITON; cdb->MODE_SENSE.PageCode = MODE_PAGE_DEVICE_CONFIG; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_DEVICE_CONFIG_PAGE); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetMediaParameters: SendSrb (mode sense #2)\n")); Srb->DataTransferLength = sizeof(MODE_DEVICE_CONFIG_PAGE) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } } ASSERT( CallNumber == 3) ; deviceConfigBuffer = Srb->DataBuffer ; extension->CurrentPartition = deviceConfigBuffer->DeviceConfigPage.ActivePartition? DIRECTORY_PARTITION : DATA_PARTITION; tapeGetMediaParams->PartitionCount = 2; return TAPE_STATUS_SUCCESS ; } // end TapeGetMediaParameters() TAPE_STATUS GetPosition( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Get Position requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; PCOMMAND_EXTENSION cmdExtension = CommandExtension; PTAPE_GET_POSITION tapeGetPosition = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; PMODE_DATA_COMPRESS_PAGE compressionModeSenseBuffer; PMODE_DEVICE_CONFIG_PAGE deviceConfigBuffer; PTAPE_POSITION_DATA readPositionBuffer; PMODE_TAPE_MEDIA_INFORMATION mediaInfoBuffer; ULONG type; ULONG tapeBlockAddress; DebugPrint((3,"TapeGetPosition: Enter routine\n")); if (CallNumber == 0) { type = tapeGetPosition->Type; TapeClassZeroMemory(tapeGetPosition, sizeof(TAPE_GET_POSITION)); tapeGetPosition->Type = type; cmdExtension->pos_type = type ; return TAPE_STATUS_CHECK_TEST_UNIT_READY; } if ( CallNumber == 1 ) { if ( cmdExtension->pos_type != TAPE_LOGICAL_POSITION ) { return TAPE_STATUS_CALLBACK ; } if ( !TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_TAPE_MEDIA_INFORMATION)) ) { DebugPrint((1,"TapeGetPosition: insufficient resources (mediaInfoBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } mediaInfoBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.PageCode = MODE_PAGE_MEDIUM_PARTITION; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_TAPE_MEDIA_INFORMATION) - 4; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetPosition: SendSrb (mode sense #1)\n")); Srb->DataTransferLength=sizeof(MODE_TAPE_MEDIA_INFORMATION) - 4 ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if (CallNumber == 2) { if ( cmdExtension->pos_type != TAPE_LOGICAL_POSITION ) { return TAPE_STATUS_CALLBACK ; } mediaInfoBuffer = Srb->DataBuffer ; cmdExtension->mediumType = mediaInfoBuffer->ParameterListHeader.MediumType; cmdExtension->densityCode = mediaInfoBuffer->ParameterListBlock.DensityCode; cmdExtension->tapeBlockLength = mediaInfoBuffer->ParameterListBlock.BlockLength[2]; cmdExtension->tapeBlockLength += (mediaInfoBuffer->ParameterListBlock.BlockLength[1] << 8); cmdExtension->tapeBlockLength += (mediaInfoBuffer->ParameterListBlock.BlockLength[0] << 16); if (!mediaInfoBuffer->MediumPartPage.FDPBit) { extension->CurrentPartition = NO_PARTITIONS; return TAPE_STATUS_CALLBACK ; } if ( !TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_DEVICE_CONFIG_PAGE)) ) { DebugPrint((1,"TapeGetPosition: insufficient resources (deviceConfigBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } deviceConfigBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.Dbd = SETBITON; cdb->MODE_SENSE.PageCode = MODE_PAGE_DEVICE_CONFIG; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_DEVICE_CONFIG_PAGE); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetPosition: SendSrb (mode sense #2)\n")); Srb->DataTransferLength=sizeof(MODE_DEVICE_CONFIG_PAGE) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 3 ) { if ( cmdExtension->pos_type != TAPE_LOGICAL_POSITION ) { return TAPE_STATUS_CALLBACK ; } if ( LastError != TAPE_STATUS_CALLBACK ) { deviceConfigBuffer = Srb->DataBuffer ; extension->CurrentPartition = deviceConfigBuffer->DeviceConfigPage.ActivePartition? DIRECTORY_PARTITION : DATA_PARTITION; } if ( extension->DriveID != TDC_4222 ) { cmdExtension->pos_type = TAPE_PSEUDO_LOGICAL_POSITION; return TAPE_STATUS_CALLBACK ; } if (!cmdExtension->densityCode) { switch (cmdExtension->mediumType) { case DC9200SL: case DC9200: case DC9200XL: cmdExtension->densityCode = QIC_2GB; break; } } if (cmdExtension->densityCode != QIC_2GB) { cmdExtension->pos_type = TAPE_PSEUDO_LOGICAL_POSITION; return TAPE_STATUS_CALLBACK ; } if (!TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_DATA_COMPRESS_PAGE)) ) { DebugPrint((1,"TapeGetDriveParameters: insufficient resources (compressionModeSenseBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } compressionModeSenseBuffer = Srb->DataBuffer; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.Dbd = SETBITON; cdb->MODE_SENSE.PageCode = MODE_PAGE_DATA_COMPRESS; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_DATA_COMPRESS_PAGE); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetDriveParameters: SendSrb (mode sense)\n")); Srb->DataTransferLength=sizeof(MODE_DATA_COMPRESS_PAGE) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 4 ) { if ( LastError != TAPE_STATUS_CALLBACK ) { compressionModeSenseBuffer = Srb->DataBuffer; if (!compressionModeSenseBuffer->DataCompressPage.DCE) { cmdExtension->pos_type = TAPE_PSEUDO_LOGICAL_POSITION; } } switch (cmdExtension->pos_type) { case TAPE_ABSOLUTE_POSITION: DebugPrint((3,"TapeGetPosition: absolute\n")); break; case TAPE_LOGICAL_POSITION: DebugPrint((3,"TapeGetPosition: logical\n")); break; case TAPE_PSEUDO_LOGICAL_POSITION: DebugPrint((3,"TapeGetPosition: pseudo logical\n")); break; default: DebugPrint((1,"TapeGetPosition: PositionType -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } if (!TapeClassAllocateSrbBuffer( Srb, sizeof(TAPE_POSITION_DATA)) ) { DebugPrint((1,"TapeGetPosition: insufficient resources (readPositionBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } readPositionBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB10GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->READ_POSITION.Operation = SCSIOP_READ_POSITION; cdb->READ_POSITION.BlockType = (cmdExtension->pos_type == TAPE_LOGICAL_POSITION)? SETBITOFF : SETBITON; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetPosition: SendSrb (read position)\n")); Srb->DataTransferLength = sizeof(TAPE_POSITION_DATA) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } ASSERT( CallNumber == 5 ) ; readPositionBuffer = Srb->DataBuffer ; REVERSE_BYTES((PFOUR_BYTE)&tapeBlockAddress, (PFOUR_BYTE)readPositionBuffer->FirstBlock); if (cmdExtension->pos_type == TAPE_PSEUDO_LOGICAL_POSITION) { tapeBlockAddress = TapeClassPhysicalBlockToLogicalBlock( cmdExtension->densityCode, tapeBlockAddress, cmdExtension->tapeBlockLength, (BOOLEAN)( (extension->CurrentPartition == DIRECTORY_PARTITION)? NOT_FROM_BOT : FROM_BOT ) ); } tapeGetPosition->Offset.HighPart = 0; tapeGetPosition->Offset.LowPart = tapeBlockAddress; if (cmdExtension->pos_type != TAPE_ABSOLUTE_POSITION) { tapeGetPosition->Partition = extension->CurrentPartition; } return TAPE_STATUS_SUCCESS; } // end TapeGetPosition() TAPE_STATUS GetStatus( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Get Status requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PCDB cdb = (PCDB)Srb->Cdb; DebugPrint((3,"TapeGetStatus: Enter routine\n")); if (CallNumber == 0) { return TAPE_STATUS_CHECK_TEST_UNIT_READY; } ASSERT(CallNumber == 1); return TAPE_STATUS_SUCCESS; } // end TapeGetStatus() TAPE_STATUS Prepare( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Prepare requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PTAPE_PREPARE tapePrepare = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; DebugPrint((3,"TapePrepare: Enter routine\n")); if (CallNumber == 0) { if (tapePrepare->Immediate) { switch (tapePrepare->Operation) { case TAPE_LOAD: case TAPE_UNLOAD: case TAPE_TENSION: DebugPrint((3,"TapePrepare: immediate\n")); break; case TAPE_LOCK: case TAPE_UNLOCK: default: DebugPrint((1,"TapePrepare: Operation, immediate -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } } // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->CDB6GENERIC.Immediate = tapePrepare->Immediate; switch (tapePrepare->Operation) { case TAPE_LOAD: DebugPrint((3,"TapePrepare: Operation == load\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_LOAD_UNLOAD; cdb->CDB6GENERIC.CommandUniqueBytes[2] = 0x01; Srb->TimeOutValue = 320; break; case TAPE_UNLOAD: DebugPrint((3,"TapePrepare: Operation == unload\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_LOAD_UNLOAD; Srb->TimeOutValue = 320; break; case TAPE_TENSION: DebugPrint((3,"TapePrepare: Operation == tension\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_LOAD_UNLOAD; cdb->CDB6GENERIC.CommandUniqueBytes[2] = 0x03; Srb->TimeOutValue = 320; break; case TAPE_LOCK: DebugPrint((3,"TapePrepare: Operation == lock\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_MEDIUM_REMOVAL; cdb->CDB6GENERIC.CommandUniqueBytes[2] = 0x01; Srb->TimeOutValue = 320; break; case TAPE_UNLOCK: DebugPrint((3,"TapePrepare: Operation == unlock\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_MEDIUM_REMOVAL; Srb->TimeOutValue = 320; break; default: DebugPrint((1,"TapePrepare: Operation -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } // // Send SCSI command (CDB) to device // DebugPrint((3,"TapePrepare: SendSrb (Operation)\n")); Srb->DataTransferLength = 0 ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } ASSERT(CallNumber == 1) ; return TAPE_STATUS_SUCCESS; } // end TapePrepare() TAPE_STATUS SetDriveParameters( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Set Drive Parameters requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; PTAPE_SET_DRIVE_PARAMETERS tapeSetDriveParams = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; PMODE_DATA_COMPRESS_PAGE compressionBuffer; DebugPrint((3,"TapeSetDriveParameters: Enter routine\n")); if (CallNumber == 0) { if ( extension->DriveID != TDC_4222 ) { DebugPrint((1,"TapeSetDriveParameters: Operation -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } if ( !TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_DATA_COMPRESS_PAGE)) ) { DebugPrint((1,"TapeSetDriveParameters: insufficient resources (compressionBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } compressionBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.Dbd = SETBITON; cdb->MODE_SENSE.PageCode = MODE_PAGE_DATA_COMPRESS; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_DATA_COMPRESS_PAGE); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeSetDriveParameters: SendSrb (mode sense)\n")); Srb->DataTransferLength = sizeof(MODE_DATA_COMPRESS_PAGE) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 1 ) { compressionBuffer = Srb->DataBuffer ; if (!compressionBuffer->DataCompressPage.DCC) { return TAPE_STATUS_SUCCESS ; } compressionBuffer->ParameterListHeader.ModeDataLength = 0; compressionBuffer->ParameterListHeader.MediumType = 0; compressionBuffer->ParameterListHeader.DeviceSpecificParameter = 0x10; compressionBuffer->ParameterListHeader.BlockDescriptorLength = 0; compressionBuffer->DataCompressPage.Reserved1 = 0; compressionBuffer->DataCompressPage.PageCode = MODE_PAGE_DATA_COMPRESS; compressionBuffer->DataCompressPage.PageLength = 0x0E; if (tapeSetDriveParams->Compression) { compressionBuffer->DataCompressPage.DCE = SETBITON; compressionBuffer->DataCompressPage.CompressionAlgorithm[3]= 3; extension->CompressionOn = TRUE; } else { compressionBuffer->DataCompressPage.DCE = SETBITOFF; extension->CompressionOn = FALSE; } compressionBuffer->DataCompressPage.DDE = SETBITON; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT; cdb->MODE_SELECT.PFBit = SETBITON; cdb->MODE_SELECT.ParameterListLength = sizeof(MODE_DATA_COMPRESS_PAGE); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeSetDriveParameters: SendSrb (mode select)\n")); Srb->SrbFlags |= SRB_FLAGS_DATA_OUT; *RetryFlags |= RETURN_ERRORS; Srb->DataTransferLength = sizeof(MODE_DATA_COMPRESS_PAGE) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } ASSERT( CallNumber == 2 ) ; if ( LastError == TAPE_STATUS_INVALID_DEVICE_REQUEST) { LastError = TAPE_STATUS_SUCCESS; } return LastError; } // end TapeSetDriveParameters() TAPE_STATUS SetMediaParameters( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Set Media Parameters requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; PTAPE_SET_MEDIA_PARAMETERS tapeSetMediaParams = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; PMODE_PARM_READ_WRITE_DATA modeBuffer; DebugPrint((3,"TapeSetMediaParameters: Enter routine\n")); if (CallNumber == 0) { if (extension->DriveID == TDC_3600) { DebugPrint((1,"TapeSetMediaParameters: whichdrive -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } return TAPE_STATUS_CHECK_TEST_UNIT_READY ; } if ( CallNumber == 1 ) { if (!TapeClassAllocateSrbBuffer(Srb, sizeof(MODE_PARM_READ_WRITE_DATA)) ) { DebugPrint((1,"TapeSetMediaParameters: insufficient resources (modeBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } modeBuffer = Srb->DataBuffer ; modeBuffer->ParameterListHeader.DeviceSpecificParameter = 0x10; modeBuffer->ParameterListHeader.BlockDescriptorLength = MODE_BLOCK_DESC_LENGTH; modeBuffer->ParameterListBlock.DensityCode = 0x7F; modeBuffer->ParameterListBlock.BlockLength[0] = (UCHAR)((tapeSetMediaParams->BlockSize >> 16) & 0xFF); modeBuffer->ParameterListBlock.BlockLength[1] = (UCHAR)((tapeSetMediaParams->BlockSize >> 8) & 0xFF); modeBuffer->ParameterListBlock.BlockLength[2] = (UCHAR)(tapeSetMediaParams->BlockSize & 0xFF); // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT; cdb->MODE_SELECT.ParameterListLength = sizeof(MODE_PARM_READ_WRITE_DATA); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeSetMediaParameters: SendSrb (mode select)\n")); Srb->SrbFlags |= SRB_FLAGS_DATA_OUT; Srb->DataTransferLength = sizeof(MODE_PARM_READ_WRITE_DATA) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } ASSERT( CallNumber == 2 ); return TAPE_STATUS_SUCCESS; } // end TapeSetMediaParameters() TAPE_STATUS SetPosition( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Set Position requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; PCOMMAND_EXTENSION cmdExtension = CommandExtension ; PTAPE_SET_POSITION tapeSetPosition = CommandParameters; PMODE_DATA_COMPRESS_PAGE compressionModeSenseBuffer; PMODE_DEVICE_CONFIG_PAGE deviceConfigBuffer; PMODE_TAPE_MEDIA_INFORMATION mediaInfoBuffer; PINQUIRYDATA inquiryBuffer; TAPE_PHYS_POSITION physPosition; BOOLEAN changePartition = FALSE; ULONG tapePositionVector; ULONG tapeBlockLength; ULONG driveID; PCDB cdb = (PCDB)Srb->Cdb; DebugPrint((3,"TapeSetPosition: Enter routine\n")); if (CallNumber == 0) { cmdExtension->changePartition = FALSE; if (tapeSetPosition->Immediate) { switch (tapeSetPosition->Method) { case TAPE_REWIND: DebugPrint((3,"TapeSetPosition: immediate\n")); break; case TAPE_LOGICAL_BLOCK: case TAPE_ABSOLUTE_BLOCK: case TAPE_SPACE_END_OF_DATA: case TAPE_SPACE_RELATIVE_BLOCKS: case TAPE_SPACE_FILEMARKS: case TAPE_SPACE_SEQUENTIAL_FMKS: case TAPE_SPACE_SETMARKS: case TAPE_SPACE_SEQUENTIAL_SMKS: default: DebugPrint((1,"TapeSetPosition: PositionMethod, immediate -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } } cmdExtension->pos_type = tapeSetPosition->Method; if (cmdExtension->pos_type != TAPE_LOGICAL_BLOCK) { return TAPE_STATUS_CALLBACK ; } if (!TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_TAPE_MEDIA_INFORMATION)) ) { DebugPrint((1,"TapeSetPosition: insufficient resources (mediaInfoBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } mediaInfoBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.PageCode = MODE_PAGE_MEDIUM_PARTITION; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_TAPE_MEDIA_INFORMATION) - 4; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeSetPosition: SendSrb (mode sense #1)\n")); Srb->DataTransferLength = sizeof(MODE_TAPE_MEDIA_INFORMATION) - 4 ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 1 ) { if (cmdExtension->pos_type != TAPE_LOGICAL_BLOCK) { return TAPE_STATUS_CALLBACK ; } mediaInfoBuffer = Srb->DataBuffer ; cmdExtension->mediumType = mediaInfoBuffer->ParameterListHeader.MediumType; cmdExtension->densityCode = mediaInfoBuffer->ParameterListBlock.DensityCode; cmdExtension->tapeBlockLength = mediaInfoBuffer->ParameterListBlock.BlockLength[2]; cmdExtension->tapeBlockLength += (mediaInfoBuffer->ParameterListBlock.BlockLength[1] << 8); cmdExtension->tapeBlockLength += (mediaInfoBuffer->ParameterListBlock.BlockLength[0] << 16); if (!mediaInfoBuffer->MediumPartPage.FDPBit) { extension->CurrentPartition = NO_PARTITIONS; return TAPE_STATUS_CALLBACK ; } if (!TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_DEVICE_CONFIG_PAGE)) ) { DebugPrint((1,"TapeSetPosition: insufficient resources (deviceConfigBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } deviceConfigBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.Dbd = SETBITON; cdb->MODE_SENSE.PageCode = MODE_PAGE_DEVICE_CONFIG; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_DEVICE_CONFIG_PAGE); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeSetPosition: SendSrb (mode sense #2)\n")); Srb->DataTransferLength = sizeof(MODE_DEVICE_CONFIG_PAGE) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 2 ) { if (cmdExtension->pos_type != TAPE_LOGICAL_BLOCK) { return TAPE_STATUS_CALLBACK ; } if (LastError != TAPE_STATUS_CALLBACK ) { deviceConfigBuffer = Srb->DataBuffer ; extension->CurrentPartition = deviceConfigBuffer->DeviceConfigPage.ActivePartition? DIRECTORY_PARTITION : DATA_PARTITION; } switch (tapeSetPosition->Partition) { case 0: break; case DIRECTORY_PARTITION: case DATA_PARTITION: if (extension->CurrentPartition != NO_PARTITIONS) { if (tapeSetPosition->Partition != extension->CurrentPartition) { cmdExtension->changePartition = TRUE; } break; } // else: fall through to next case default: DebugPrint((1,"TapeSetPosition: Partition -- invalid parameter\n")); return TAPE_STATUS_INVALID_PARAMETER; } if (extension->DriveID != TDC_4222 ) { cmdExtension->pos_type = TAPE_PSEUDO_LOGICAL_BLOCK; return TAPE_STATUS_CALLBACK ; } if (!cmdExtension->densityCode) { switch (cmdExtension->mediumType) { case DC9200SL: case DC9200: case DC9200XL: cmdExtension->densityCode = QIC_2GB; break; } } if (cmdExtension->densityCode != QIC_2GB) { cmdExtension->pos_type = TAPE_PSEUDO_LOGICAL_BLOCK; return TAPE_STATUS_CALLBACK ; } if (!TapeClassAllocateSrbBuffer( Srb, sizeof(MODE_DATA_COMPRESS_PAGE)) ) { DebugPrint((1,"TapeSetPosition: insufficient resources (compressionModeSenseBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } compressionModeSenseBuffer = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE; cdb->MODE_SENSE.Dbd = SETBITON; cdb->MODE_SENSE.PageCode = MODE_PAGE_DATA_COMPRESS; cdb->MODE_SENSE.AllocationLength = sizeof(MODE_DATA_COMPRESS_PAGE); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeSetPosition: SendSrb (mode sense)\n")); Srb->DataTransferLength = sizeof(MODE_DATA_COMPRESS_PAGE) ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 3 ) { if (LastError != TAPE_STATUS_CALLBACK ) { compressionModeSenseBuffer = Srb->DataBuffer ; if (!compressionModeSenseBuffer->DataCompressPage.DCE) { cmdExtension->pos_type = TAPE_PSEUDO_LOGICAL_BLOCK; } } tapePositionVector = tapeSetPosition->Offset.LowPart; if (cmdExtension->pos_type == TAPE_PSEUDO_LOGICAL_BLOCK) { physPosition = TapeClassLogicalBlockToPhysicalBlock( cmdExtension->densityCode, tapeSetPosition->Offset.LowPart, cmdExtension->tapeBlockLength, (BOOLEAN)( (extension->CurrentPartition == DIRECTORY_PARTITION)? NOT_FROM_BOT : FROM_BOT ) ); tapePositionVector = physPosition.SeekBlockAddress; } DebugPrint((3,"TapeSetPosition: pseudo logical\n")); // // Prepare SCSI command (CDB) // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); Srb->CdbLength = CDB6GENERIC_LENGTH; cdb->CDB6GENERIC.Immediate = tapeSetPosition->Immediate; switch (cmdExtension->pos_type) { case TAPE_ABSOLUTE_BLOCK: DebugPrint((3,"TapeSetPosition: method == locate (absolute)\n")); break; case TAPE_LOGICAL_BLOCK: DebugPrint((3,"TapeSetPosition: method == locate (logical)\n")); break; case TAPE_PSEUDO_LOGICAL_BLOCK: DebugPrint((3,"TapeSetPosition: method == locate (pseudo logical)\n")); break; } cmdExtension->psudo_space_count = 0 ; switch (cmdExtension->pos_type) { case TAPE_REWIND: DebugPrint((3,"TapeSetPosition: method == rewind\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_REWIND; Srb->TimeOutValue = 320; break; case TAPE_PSEUDO_LOGICAL_BLOCK: cmdExtension->psudo_space_count = physPosition.SpaceBlockCount ; // basicaly, we have to make two calls in this case // one for locate and one for space /* fall through */ case TAPE_ABSOLUTE_BLOCK: case TAPE_LOGICAL_BLOCK: Srb->CdbLength = CDB10GENERIC_LENGTH; cdb->LOCATE.OperationCode = SCSIOP_LOCATE; cdb->LOCATE.CPBit = changePartition? SETBITON : SETBITOFF; cdb->LOCATE.BTBit = (cmdExtension->pos_type == TAPE_LOGICAL_BLOCK)? SETBITOFF : SETBITON; cdb->LOCATE.LogicalBlockAddress[1] = (UCHAR)((tapePositionVector >> 16) & 0xFF); cdb->LOCATE.LogicalBlockAddress[2] = (UCHAR)((tapePositionVector >> 8) & 0xFF); cdb->LOCATE.LogicalBlockAddress[3] = (UCHAR)(tapePositionVector & 0xFF); if (changePartition && (tapeSetPosition->Partition == DIRECTORY_PARTITION)) { cdb->LOCATE.Partition = 1; } Srb->TimeOutValue = 480; break; case TAPE_SPACE_END_OF_DATA: DebugPrint((3,"TapeSetPosition: method == space to end-of-data\n")); cdb->SPACE_TAPE_MARKS.OperationCode = SCSIOP_SPACE; cdb->SPACE_TAPE_MARKS.Code = 3; Srb->TimeOutValue = 180; break; case TAPE_SPACE_RELATIVE_BLOCKS: DebugPrint((3,"TapeSetPosition: method == space blocks\n")); cdb->SPACE_TAPE_MARKS.OperationCode = SCSIOP_SPACE; cdb->SPACE_TAPE_MARKS.Code = 0; cdb->SPACE_TAPE_MARKS.NumMarksMSB = (UCHAR)((tapePositionVector >> 16) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarks = (UCHAR)((tapePositionVector >> 8) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarksLSB = (UCHAR)(tapePositionVector & 0xFF); Srb->TimeOutValue = 11100; break; case TAPE_SPACE_FILEMARKS: DebugPrint((3,"TapeSetPosition: method == space filemarks\n")); cdb->SPACE_TAPE_MARKS.OperationCode = SCSIOP_SPACE; cdb->SPACE_TAPE_MARKS.Code = 1; cdb->SPACE_TAPE_MARKS.NumMarksMSB = (UCHAR)((tapePositionVector >> 16) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarks = (UCHAR)((tapePositionVector >> 8) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarksLSB = (UCHAR)(tapePositionVector & 0xFF); Srb->TimeOutValue = 11100; break; case TAPE_SPACE_SEQUENTIAL_FMKS: DebugPrint((3,"TapeSetPosition: method == space sequential filemarks\n")); cdb->SPACE_TAPE_MARKS.OperationCode = SCSIOP_SPACE; cdb->SPACE_TAPE_MARKS.Code = 2; cdb->SPACE_TAPE_MARKS.NumMarksMSB = (UCHAR)((tapePositionVector >> 16) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarks = (UCHAR)((tapePositionVector >> 8) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarksLSB = (UCHAR)(tapePositionVector & 0xFF); Srb->TimeOutValue = 11100; break; case TAPE_SPACE_SETMARKS: DebugPrint((3,"TapeSetPosition: method == space setmarks\n")); cdb->SPACE_TAPE_MARKS.OperationCode = SCSIOP_SPACE; cdb->SPACE_TAPE_MARKS.Code = 4; cdb->SPACE_TAPE_MARKS.NumMarksMSB = (UCHAR)((tapePositionVector >> 16) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarks = (UCHAR)((tapePositionVector >> 8) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarksLSB = (UCHAR)(tapePositionVector & 0xFF); Srb->TimeOutValue = 11100; break; default: DebugPrint((1,"TapeSetPosition: PositionMethod -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeSetPosition: SendSrb (method)\n")); Srb->DataTransferLength = 0 ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if ( CallNumber == 4 ) { if (cmdExtension->psudo_space_count ) { // // Zero CDB in SRB on stack. // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; DebugPrint((3,"TapeSetPosition: method == locate (pseudo logical) + space block(s)\n")); cdb->SPACE_TAPE_MARKS.OperationCode = SCSIOP_SPACE; cdb->SPACE_TAPE_MARKS.Code = 0; cdb->SPACE_TAPE_MARKS.NumMarksMSB = (UCHAR)((cmdExtension->psudo_space_count >> 16) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarks = (UCHAR)((cmdExtension->psudo_space_count >> 8) & 0xFF); cdb->SPACE_TAPE_MARKS.NumMarksLSB = (UCHAR)(cmdExtension->psudo_space_count & 0xFF); Srb->TimeOutValue = 180; Srb->DataTransferLength = 0 ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } if (cmdExtension->changePartition) { extension->CurrentPartition = tapeSetPosition->Partition; } return TAPE_STATUS_SUCCESS ; } ASSERT( CallNumber == 5 ) return TAPE_STATUS_SUCCESS ; } // end TapeSetPosition() TAPE_STATUS WriteMarks( IN OUT PVOID MinitapeExtension, IN OUT PVOID CommandExtension, IN OUT PVOID CommandParameters, IN OUT PSCSI_REQUEST_BLOCK Srb, IN ULONG CallNumber, IN TAPE_STATUS LastError, IN OUT PULONG RetryFlags ) /*++ Routine Description: This is the TAPE COMMAND routine for a Write Marks requests. Arguments: MinitapeExtension - Supplies the minitape extension. CommandExtension - Supplies the ioctl extension. CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. RetryFlags - Supplies the retry flags. Return Value: TAPE_STATUS_SEND_SRB_AND_CALLBACK - The SRB is ready to be sent (a callback is requested.) TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PTAPE_WRITE_MARKS tapeWriteMarks = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; DebugPrint((3,"TapeWriteMarks: Enter routine\n")); if (CallNumber == 0) { if (tapeWriteMarks->Immediate) { switch (tapeWriteMarks->Type) { case TAPE_SETMARKS: case TAPE_FILEMARKS: DebugPrint((3,"TapeWriteMarks: immediate\n")); break; case TAPE_SHORT_FILEMARKS: case TAPE_LONG_FILEMARKS: default: DebugPrint((1,"TapeWriteMarks: TapemarkType, immediate -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } } // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->WRITE_TAPE_MARKS.OperationCode = SCSIOP_WRITE_FILEMARKS; cdb->WRITE_TAPE_MARKS.Immediate = tapeWriteMarks->Immediate; switch (tapeWriteMarks->Type) { case TAPE_SETMARKS: DebugPrint((3,"TapeWriteMarks: TapemarkType == setmarks\n")); cdb->WRITE_TAPE_MARKS.WriteSetMarks = SETBITON; break; case TAPE_FILEMARKS: DebugPrint((3,"TapeWriteMarks: TapemarkType == filemarks\n")); break; case TAPE_SHORT_FILEMARKS: case TAPE_LONG_FILEMARKS: default: DebugPrint((1,"TapeWriteMarks: TapemarkType -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } cdb->WRITE_TAPE_MARKS.TransferLength[0] = (UCHAR)((tapeWriteMarks->Count >> 16) & 0xFF); cdb->WRITE_TAPE_MARKS.TransferLength[1] = (UCHAR)((tapeWriteMarks->Count >> 8) & 0xFF); cdb->WRITE_TAPE_MARKS.TransferLength[2] = (UCHAR)(tapeWriteMarks->Count & 0xFF); // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeWriteMarks: SendSrb (TapemarkType)\n")); Srb->DataTransferLength = 0 ; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } ASSERT( CallNumber == 1 ) ; return TAPE_STATUS_SUCCESS ; } // end TapeWriteMarks() static ULONG WhichIsIt( IN PINQUIRYDATA InquiryData ) /*++ Routine Description: This routine determines a drive's identity from the Product ID field in its inquiry data. Arguments: InquiryData (from an Inquiry command) Return Value: driveID --*/ { if (TapeClassCompareMemory(InquiryData->VendorId,"TANDBERG",8) == 8) { if (TapeClassCompareMemory(InquiryData->ProductId," TDC 3600",9) == 9) { return TDC_3600; } if (TapeClassCompareMemory(InquiryData->ProductId," TDC 3800",9) == 9) { return TDC_3800; } if (TapeClassCompareMemory(InquiryData->ProductId," TDC 4100",9) == 9) { return TDC_4100; } if (TapeClassCompareMemory(InquiryData->ProductId," IBM 4100",9) == 9) { return IBM_4100; } if (TapeClassCompareMemory(InquiryData->ProductId," TDC 4200",9) == 9) { return TDC_4200; } if (TapeClassCompareMemory(InquiryData->ProductId," TDC 4222",9) == 9) { return TDC_4222; } } if (TapeClassCompareMemory(InquiryData->VendorId,"DEC ",8) == 8) { if (TapeClassCompareMemory(InquiryData->ProductId,"TZK10",5) == 5) { return TDC_3800; } if (TapeClassCompareMemory(InquiryData->ProductId,"TZK12",5) == 5) { return TDC_3800; } if (TapeClassCompareMemory(InquiryData->ProductId,"TZK11",5) == 5) { return TDC_4200; } } return (ULONG)0; }