/*++ Copyright (c) 1992 Microsoft Corporation Module Name: exabyte2.c Abstract: This module contains the device-specific routines for the Exabyte EXB-8500 tape drive. Author: Mike Glass Hunter Small (Maynard) Lori Brown (Maynard) Chris Hugh Sam (Maynard) Norbert Kusters Environment: kernel mode only Revision History: Norbert Kusters - November 1994 - converted to minitape model --*/ #include "minitape.h" #undef DebugPrint #define DebugPrint(foo) // // Internal (module wide) defines that symbolize // density codes returned by/from EXB-8500 drives // #define EXB_XX00 0 // undetermined tape recording density #define EXB_8200 20 // 0x14 // EXB-8200 tape recording density #define EXB_8500 133 // 0x85 // EXB-8500 tape recording density // // Internal (module wide) defines that symbolize // the 8mm drives supported by this module. // #define EXABYTE_8500 1 // aka the Maynard 5000 #define EXABYTE_8505 2 // An Exabyte 8500 with data compresion #define IBM_8505 3 // OEM Exabyte 8500 with data compresion #define EXABYTE_8500C 4 // 8500 with compression // // Define EXABYTE vendor unique mode select/sense information. // #define EXABYTE_MODE_LENGTH 0x11 #define EXABYTE_CARTRIDGE 0x80 #define EXABYTE_NO_DATA_DISCONNECT 0x20 #define EXABYTE_NO_BUSY_ENABLE 0x08 #define EXABYTE_EVEN_BYTE_DISCONNECT 0x04 #define EXABYTE_PARITY_ENABLE 0x02 #define EXABYTE_NO_AUTO_LOAD 0X01 // // Function prototype(s) for internal function(s) // static ULONG WhichIsIt(IN PINQUIRYDATA InquiryData); // // Minitape extension definition. // typedef struct _MINITAPE_EXTENSION { ULONG DriveID; ULONG Capacity; } MINITAPE_EXTENSION, *PMINITAPE_EXTENSION; // // Command extension definition. // typedef struct _COMMAND_EXTENSION { ULONG CurrentState; } COMMAND_EXTENSION, *PCOMMAND_EXTENSION; 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); } 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. --*/ { DebugPrint((3,"TapeCreatePartition: Enter routine\n")); DebugPrint((1,"TapeCreatePartition: operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } 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. --*/ { 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; Srb->DataTransferLength = 0; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->ERASE.OperationCode = SCSIOP_ERASE; cdb->ERASE.Immediate = tapeErase->Immediate; cdb->ERASE.Long = SETBITON; // // Set timeout value. // Srb->TimeOutValue = 18000; // // 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); return TAPE_STATUS_SUCCESS; } 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)); if (*LastError == TAPE_STATUS_IO_DEVICE_ERROR) { if ((sensekey == SCSI_SENSE_ABORTED_COMMAND) && (adsense == 0x5A) && (adsenseq == 0x01) ){ //operator medium removal request *LastError = TAPE_STATUS_NO_MEDIA; } } 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 commandExtension = 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; DebugPrint((3,"TapeGetDriveParameters: Enter routine\n")); if (CallNumber == 0) { TapeClassZeroMemory(tapeGetDriveParams, sizeof(TAPE_GET_DRIVE_PARAMETERS)); if (!TapeClassAllocateSrbBuffer(Srb, sizeof(MODE_DEVICE_CONFIG_PAGE))) { DebugPrint((1,"TapeGetDriveParameters: insufficient resources (modeParmBuffer)\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) - 1; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetDriveParameters: SendSrb (mode sense)\n")); Srb->DataTransferLength = sizeof(MODE_DEVICE_CONFIG_PAGE) - 1; return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } if (CallNumber == 1) { deviceConfigModeSenseBuffer = Srb->DataBuffer; tapeGetDriveParams->ReportSetmarks = (deviceConfigModeSenseBuffer->DeviceConfigPage.RSmk? 1 : 0 ); switch (extension->DriveID) { case EXABYTE_8505: case EXABYTE_8500C: case IBM_8505: commandExtension->CurrentState = 0; break; default: commandExtension->CurrentState = 2; break; } } if (commandExtension->CurrentState == 0) { 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")); commandExtension->CurrentState = 1; return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } if (commandExtension->CurrentState == 1) { compressionModeSenseBuffer = Srb->DataBuffer; if (compressionModeSenseBuffer->DataCompressPage.DCC) { tapeGetDriveParams->FeaturesLow |= TAPE_DRIVE_COMPRESSION; tapeGetDriveParams->FeaturesHigh |= TAPE_DRIVE_SET_COMPRESSION; tapeGetDriveParams->Compression = (compressionModeSenseBuffer->DataCompressPage.DCE? TRUE : FALSE); } commandExtension->CurrentState = 2; } if (commandExtension->CurrentState == 2) { if (!TapeClassAllocateSrbBuffer(Srb, sizeof(READ_BLOCK_LIMITS_DATA))) { DebugPrint((1,"TapeGetDriveParameters: insufficient resources (blockLimits)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } blockLimits = Srb->DataBuffer; // // Zero CDB in SRB on stack. // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; cdb->CDB6GENERIC.OperationCode = SCSIOP_READ_BLOCK_LIMITS; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetDriveParameters: SendSrb (read block limits)\n")); commandExtension->CurrentState = 3; return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } ASSERT(commandExtension->CurrentState == 3); 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 = 0; tapeGetDriveParams->DefaultBlockSize = 1024; tapeGetDriveParams->FeaturesLow |= TAPE_DRIVE_TAPE_CAPACITY | TAPE_DRIVE_TAPE_REMAINING | TAPE_DRIVE_ERASE_LONG | TAPE_DRIVE_ERASE_IMMEDIATE | TAPE_DRIVE_FIXED_BLOCK | TAPE_DRIVE_VARIABLE_BLOCK | TAPE_DRIVE_WRITE_PROTECT | TAPE_DRIVE_GET_ABSOLUTE_BLK | TAPE_DRIVE_GET_LOGICAL_BLK | TAPE_DRIVE_EJECT_MEDIA; tapeGetDriveParams->FeaturesHigh |= TAPE_DRIVE_LOAD_UNLOAD | TAPE_DRIVE_LOCK_UNLOCK | TAPE_DRIVE_REWIND_IMMEDIATE | TAPE_DRIVE_SET_BLOCK_SIZE | TAPE_DRIVE_LOAD_UNLD_IMMED | TAPE_DRIVE_RELATIVE_BLKS | TAPE_DRIVE_FILEMARKS | TAPE_DRIVE_REVERSE_POSITION | TAPE_DRIVE_WRITE_SHORT_FMKS | TAPE_DRIVE_WRITE_LONG_FMKS | TAPE_DRIVE_WRITE_MARK_IMMED | TAPE_DRIVE_ABSOLUTE_BLK | TAPE_DRIVE_ABS_BLK_IMMED | TAPE_DRIVE_LOGICAL_BLK | TAPE_DRIVE_LOG_BLK_IMMED | TAPE_DRIVE_END_OF_DATA; tapeGetDriveParams->FeaturesHigh &= ~TAPE_DRIVE_HIGH_FEATURES; return TAPE_STATUS_SUCCESS; } 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_PARM_READ_WRITE_DATA modeBuffer; UCHAR *SenseData; ULONG remaining; ULONG temp ; PCDB cdb = (PCDB)Srb->Cdb; DebugPrint((3,"TapeGetMediaParameters: Enter routine\n")); if (CallNumber == 0) { return TAPE_STATUS_CHECK_TEST_UNIT_READY; } if (CallNumber == 1) { if (!TapeClassAllocateSrbBuffer(Srb, EXABYTE_MODE_LENGTH)) { DebugPrint((1,"TapeGetMediaParameters: insufficient resources (modeBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } modeBuffer = 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 = EXABYTE_MODE_LENGTH; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetMediaParameters: SendSrb (mode sense)\n")); return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } if (CallNumber == 2) { modeBuffer = Srb->DataBuffer; tapeGetMediaParams->BlockSize = modeBuffer->ParameterListBlock.BlockLength[2]; tapeGetMediaParams->BlockSize += (modeBuffer->ParameterListBlock.BlockLength[1] << 8); tapeGetMediaParams->BlockSize += (modeBuffer->ParameterListBlock.BlockLength[0] << 16); tapeGetMediaParams->WriteProtected = ((modeBuffer->ParameterListHeader.DeviceSpecificParameter >> 7) & 0x01); // // Set the even byte disconnect flag in the mode data. This is the // first byte of the vendor unique data. // *((PUCHAR)(modeBuffer+1)) |= EXABYTE_EVEN_BYTE_DISCONNECT; modeBuffer->ParameterListHeader.ModeDataLength = 0; modeBuffer->ParameterListHeader.MediumType = 0; modeBuffer->ParameterListHeader.DeviceSpecificParameter = 0x10; modeBuffer->ParameterListBlock.DensityCode = 0x7F; modeBuffer->ParameterListBlock.NumberOfBlocks[0] = 0; modeBuffer->ParameterListBlock.NumberOfBlocks[1] = 0; modeBuffer->ParameterListBlock.NumberOfBlocks[2] = 0; cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT; DebugPrint((3,"TapeGetMediaParameters: SendSrb (mode select)\n")); Srb->SrbFlags |= SRB_FLAGS_DATA_OUT; Srb->DataTransferLength = EXABYTE_MODE_LENGTH; *RetryFlags |= IGNORE_ERRORS; return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } if (CallNumber == 3) { tapeGetMediaParams->Capacity.QuadPart = 0; tapeGetMediaParams->Remaining.QuadPart = 0; if (!TapeClassAllocateSrbBuffer( Srb, 26 ) ) { DebugPrint((1,"GetRemaining Size: insufficient resources (SenseData)\n")); return TAPE_STATUS_SUCCESS ; } SenseData = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); Srb->CdbLength = CDB6GENERIC_LENGTH; cdb->CDB6INQUIRY.OperationCode = SCSIOP_REQUEST_SENSE; cdb->CDB6INQUIRY.AllocationLength = 26 ; // // Send SCSI command (CDB) to device // DebugPrint((3,"GetRemainingSize: SendSrb (request sense)\n")); Srb->DataTransferLength = 26 ; *RetryFlags |= RETURN_ERRORS; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } ASSERT( CallNumber == 4 ) ; if ( LastError == TAPE_STATUS_SUCCESS ) { SenseData = Srb->DataBuffer ; temp = SenseData[23] ; remaining = temp<<16 ; temp = SenseData[24] ; remaining += temp<<8 ; temp = SenseData[25] ; remaining += temp ; tapeGetMediaParams->Capacity.LowPart = extension->Capacity ; tapeGetMediaParams->Remaining.LowPart = remaining ; tapeGetMediaParams->Capacity.QuadPart <<= 10; tapeGetMediaParams->Remaining.QuadPart <<= 10; } return TAPE_STATUS_SUCCESS; } 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. --*/ { PTAPE_GET_POSITION tapeGetPosition = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; PTAPE_POSITION_DATA logicalBuffer; ULONG type; DebugPrint((3,"TapeGetPosition: Enter routine\n")); if (CallNumber == 0) { type = tapeGetPosition->Type; TapeClassZeroMemory(tapeGetPosition, sizeof(TAPE_GET_POSITION)); tapeGetPosition->Type = type; switch (type) { case TAPE_ABSOLUTE_POSITION: case TAPE_LOGICAL_POSITION: if (!TapeClassAllocateSrbBuffer(Srb, sizeof(TAPE_POSITION_DATA))) { DebugPrint((1,"TapeGetPosition: insufficient resources (logicalBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } logicalBuffer = Srb->DataBuffer; // // Zero CDB in SRB on stack. // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB10GENERIC_LENGTH; cdb->READ_POSITION.Operation = SCSIOP_READ_POSITION; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeGetPosition: SendSrb (read position)\n")); return TAPE_STATUS_SEND_SRB_AND_CALLBACK; default: DebugPrint((1,"TapeGetPosition: PositionType -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } } ASSERT(CallNumber == 1); logicalBuffer = Srb->DataBuffer; if (logicalBuffer->BlockPositionUnsupported) { DebugPrint((1,"TapeGetPosition: read position -- logical block position unsupported\n")); return TAPE_STATUS_INVALID_DEVICE_REQUEST; } tapeGetPosition->Partition = 0; tapeGetPosition->Offset.HighPart = 0; REVERSE_BYTES((PFOUR_BYTE)&tapeGetPosition->Offset.LowPart, (PFOUR_BYTE)logicalBuffer->FirstBlock); return TAPE_STATUS_SUCCESS; } 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; } 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. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; PTAPE_PREPARE tapePrepare = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; UCHAR *SenseData; ULONG remaining; ULONG temp ; DebugPrint((3,"TapePrepare: Enter routine\n")); if (CallNumber == 0) { if (tapePrepare->Immediate) { switch (tapePrepare->Operation) { case TAPE_LOAD: case TAPE_UNLOAD: DebugPrint((3,"TapePrepare: immediate\n")); break; case TAPE_TENSION: case TAPE_LOCK: case TAPE_UNLOCK: default: DebugPrint((1,"TapePrepare: Operation, immediate -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } } // // Zero CDB in SRB on stack. // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; 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 = 150; break; case TAPE_UNLOAD: DebugPrint((3,"TapePrepare: Operation == unload\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_LOAD_UNLOAD; Srb->TimeOutValue = 150; break; case TAPE_LOCK: DebugPrint((3,"TapePrepare: Operation == lock\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_MEDIUM_REMOVAL; cdb->CDB6GENERIC.CommandUniqueBytes[2] = 0x01; Srb->TimeOutValue = 150; break; case TAPE_UNLOCK: DebugPrint((3,"TapePrepare: Operation == unlock\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_MEDIUM_REMOVAL; Srb->TimeOutValue = 150; break; case TAPE_TENSION: 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; } if ( CallNumber == 1 ) { if (tapePrepare->Operation == TAPE_LOAD ) { if (!TapeClassAllocateSrbBuffer( Srb, 26 ) ) { DebugPrint((1,"GetRemaining Size: insufficient resources (SenseData)\n")); return TAPE_STATUS_SUCCESS ; } SenseData = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); Srb->CdbLength = CDB6GENERIC_LENGTH; cdb->CDB6INQUIRY.OperationCode = SCSIOP_REQUEST_SENSE; cdb->CDB6INQUIRY.AllocationLength = 26 ; // // Send SCSI command (CDB) to device // DebugPrint((3,"GetRemainingSize: SendSrb (request sense)\n")); Srb->DataTransferLength = 26 ; *RetryFlags |= RETURN_ERRORS; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } else { return TAPE_STATUS_CALLBACK ; } } ASSERT(CallNumber == 2 ); if ( LastError == TAPE_STATUS_SUCCESS ) { SenseData = Srb->DataBuffer ; temp = SenseData[23] ; remaining = temp<<16 ; temp = SenseData[24] ; remaining += temp<<8 ; temp = SenseData[25] ; remaining += temp ; extension->Capacity = remaining ; } return TAPE_STATUS_SUCCESS; } 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; PCOMMAND_EXTENSION commandExtension = CommandExtension; PTAPE_SET_DRIVE_PARAMETERS tapeSetDriveParams = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; PMODE_DATA_COMPRESS_PAGE compressionBuffer; PMODE_DEVICE_CONFIG_PAGE configBuffer; DebugPrint((3,"TapeSetDriveParameters: Enter routine\n")); if (CallNumber == 0) { switch (extension->DriveID) { case EXABYTE_8505: case EXABYTE_8500C: case IBM_8505: break; default: DebugPrint((1,"TapeSetDriveParameters: operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } if (!TapeClassAllocateSrbBuffer(Srb, sizeof(MODE_DEVICE_CONFIG_PAGE))) { DebugPrint((1,"TapeSetDriveParameters: insufficient resources (configBuffer)\n")); return TAPE_STATUS_INSUFFICIENT_RESOURCES; } configBuffer = 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) - 1; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeSetDriveParameters: SendSrb (mode sense)\n")); Srb->DataTransferLength = sizeof(MODE_DEVICE_CONFIG_PAGE) - 1; return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } if (CallNumber == 1) { configBuffer = Srb->DataBuffer; configBuffer->ParameterListHeader.ModeDataLength = 0; configBuffer->ParameterListHeader.MediumType = 0; configBuffer->ParameterListHeader.DeviceSpecificParameter = 0x10; configBuffer->ParameterListHeader.BlockDescriptorLength = 0; if (tapeSetDriveParams->ReportSetmarks) { configBuffer->DeviceConfigPage.RSmk = SETBITON; } else { configBuffer->DeviceConfigPage.RSmk = SETBITOFF; } // // 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_DEVICE_CONFIG_PAGE) - 1; // // Send SCSI command (CDB) to device // DebugPrint((3,"TapeSetDriveParameters: SendSrb (mode select)\n")); Srb->DataTransferLength = sizeof(MODE_DEVICE_CONFIG_PAGE) - 1; Srb->SrbFlags |= SRB_FLAGS_DATA_OUT; return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } if (CallNumber == 2) { 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")); return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } if (CallNumber == 3) { 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.PageCode = MODE_PAGE_DATA_COMPRESS; compressionBuffer->DataCompressPage.PageLength = 0x0E; if (tapeSetDriveParams->Compression) { compressionBuffer->DataCompressPage.DCE = SETBITON; } else { compressionBuffer->DataCompressPage.DCE = SETBITOFF; } // // 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; Srb->DataTransferLength = sizeof(MODE_DATA_COMPRESS_PAGE); return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } ASSERT(CallNumber == 4); return TAPE_STATUS_SUCCESS; } 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. --*/ { 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) { 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.ModeDataLength = 0; modeBuffer->ParameterListHeader.MediumType = 0; 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; return TAPE_STATUS_SEND_SRB_AND_CALLBACK; } ASSERT(CallNumber == 2); return TAPE_STATUS_SUCCESS; } 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; PTAPE_SET_POSITION tapeSetPosition = CommandParameters; PCDB cdb = (PCDB)Srb->Cdb; ULONG tapePositionVector; ULONG method; UCHAR *SenseData; ULONG remaining; ULONG temp ; DebugPrint((3,"TapeSetPosition: Enter routine\n")); if (CallNumber == 0) { if (tapeSetPosition->Immediate) { switch (tapeSetPosition->Method) { case TAPE_REWIND: case TAPE_ABSOLUTE_BLOCK: case TAPE_LOGICAL_BLOCK: DebugPrint((3,"TapeSetPosition: immediate\n")); break; 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; } } method = tapeSetPosition->Method; tapePositionVector = tapeSetPosition->Offset.LowPart; // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); cdb->CDB6GENERIC.Immediate = tapeSetPosition->Immediate; switch (method) { case TAPE_REWIND: DebugPrint((3,"TapeSetPosition: method == rewind\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_REWIND; Srb->TimeOutValue = 250; break; case TAPE_ABSOLUTE_BLOCK: case TAPE_LOGICAL_BLOCK: DebugPrint((3,"TapeSetPosition: method == locate (absolute/logical)\n")); Srb->CdbLength = CDB10GENERIC_LENGTH; cdb->LOCATE.OperationCode = SCSIOP_LOCATE; cdb->LOCATE.LogicalBlockAddress[0] = (UCHAR)((tapePositionVector >> 24) & 0xFF); cdb->LOCATE.LogicalBlockAddress[1] = (UCHAR)((tapePositionVector >> 16) & 0xFF); cdb->LOCATE.LogicalBlockAddress[2] = (UCHAR)((tapePositionVector >> 8) & 0xFF); cdb->LOCATE.LogicalBlockAddress[3] = (UCHAR)(tapePositionVector & 0xFF); Srb->TimeOutValue = 300; 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 = 150; 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 = 4100; 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 = 4100; break; case TAPE_SPACE_SEQUENTIAL_FMKS: case TAPE_SPACE_SETMARKS: case TAPE_SPACE_SEQUENTIAL_SMKS: 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 == 1 ) { if (tapeSetPosition->Method == TAPE_REWIND ) { if (!TapeClassAllocateSrbBuffer( Srb, 26 ) ) { DebugPrint((1,"GetRemaining Size: insufficient resources (SenseData)\n")); return TAPE_STATUS_SUCCESS ; } SenseData = Srb->DataBuffer ; // // Prepare SCSI command (CDB) // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); Srb->CdbLength = CDB6GENERIC_LENGTH; cdb->CDB6INQUIRY.OperationCode = SCSIOP_REQUEST_SENSE; cdb->CDB6INQUIRY.AllocationLength = 26 ; // // Send SCSI command (CDB) to device // DebugPrint((3,"GetRemainingSize: SendSrb (request sense)\n")); Srb->DataTransferLength = 26 ; *RetryFlags |= RETURN_ERRORS; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } else { return TAPE_STATUS_CALLBACK ; } } ASSERT(CallNumber == 2 ); if ( LastError == TAPE_STATUS_SUCCESS ) { SenseData = Srb->DataBuffer ; temp = SenseData[23] ; remaining = temp<<16 ; temp = SenseData[24] ; remaining += temp<<8 ; temp = SenseData[25] ; remaining += temp ; extension->Capacity = remaining ; } return TAPE_STATUS_SUCCESS; } 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_SHORT_FILEMARKS: case TAPE_LONG_FILEMARKS: DebugPrint((3,"TapeWriteMarks: immediate\n")); break; case TAPE_SETMARKS: case TAPE_FILEMARKS: default: DebugPrint((1,"TapeWriteMarks: TapemarkType, immediate -- operation not supported\n")); return TAPE_STATUS_NOT_IMPLEMENTED; } } // // Zero CDB in SRB on stack. // TapeClassZeroMemory(cdb, MAXIMUM_CDB_SIZE); // // Prepare SCSI command (CDB) // Srb->CdbLength = CDB6GENERIC_LENGTH; cdb->WRITE_TAPE_MARKS.OperationCode = SCSIOP_WRITE_FILEMARKS; cdb->WRITE_TAPE_MARKS.Immediate = tapeWriteMarks->Immediate; switch (tapeWriteMarks->Type) { case TAPE_SHORT_FILEMARKS: DebugPrint((3,"TapeWriteMarks: TapemarkType == short filemarks\n")); cdb->WRITE_TAPE_MARKS.Control = 0x80; break; case TAPE_LONG_FILEMARKS: DebugPrint((3,"TapeWriteMarks: TapemarkType == long filemarks\n")); break; case TAPE_SETMARKS: case TAPE_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; } 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,"EXABYTE ",8) == 8) { if (TapeClassCompareMemory(InquiryData->ProductId,"EXB-8500",8) == 8) { return EXABYTE_8500; } if (TapeClassCompareMemory(InquiryData->ProductId,"EXB8500C",8) == 8) { return EXABYTE_8500C; } if (TapeClassCompareMemory(InquiryData->ProductId,"EXB-8505",8) == 8) { return EXABYTE_8505; } if (TapeClassCompareMemory(InquiryData->ProductId,"IBM-8505",8) == 8) { return IBM_8505; } if (TapeClassCompareMemory(InquiryData->ProductId,"EXB-8205",8) == 8) { return EXABYTE_8500; } } return 0; }