/*++ Copyright (c) 1996 - Microsoft Corporation Module Name: hpt4qic.c Abstract: This module contains device specific routines for HP T4000 drives with SCSI-2 interfaces . Author: Kurt Godwin (HP) Environment: kernel mode only Revision History: --*/ #include "minitape.h" #if DBG //#define HACK_SCSIDEBUG 0x3082 VOID ThisDbgPrint(int a,void *b,...) { int *args; int save; char *ScsiDebug; args = (int *)&b; #if HACK_SCSIDEBUG ScsiDebug = (char *)ScsiDebugPrint + HACK_SCSIDEBUG; save = *ScsiDebug; *ScsiDebug = a; #endif DebugPrint((a, b, args[1],args[2],args[3],args[4])); #if HACK_SCSIDEBUG *ScsiDebug = save; #endif } #undef DebugPrint //#define DebugPrint(foo) #define DebugPrint(str) ThisDbgPrint str #endif // // Internal (module wide) defines that symbolize // non-QFA mode and the two QFA mode partitions. // #define NO_PARTITIONS 0 // non-QFA mode #define DATA_PARTITION 1 // QFA mode, data partition # #define DIRECTORY_PARTITION 2 // QFA mode, directory partition # // // Internal (module wide) defines that symbolize // the Tandberg QIC drives supported by this module. // #define HPT4000s (ULONG)1 #define TR4 0xb6 // // Minitape extension definition. // typedef struct _MINITAPE_EXTENSION { ULONG DriveID ; ULONG CurrentPartition ; BOOLEAN CompressionOn ; BOOLEAN writeMode; } MINITAPE_EXTENSION, *PMINITAPE_EXTENSION ; // // Command extension definition. // typedef struct _COMMAND_EXTENSION { ULONG CurrentState; UCHAR densityCode; UCHAR mediumType; ULONG tapeBlockLength; BOOLEAN changePartition ; ULONG pos_type ; ULONG filemarksLeft; } COMMAND_EXTENSION, *PCOMMAND_EXTENSION; // // Function Prototype(s) for internal function(s) // 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 ); TAPE_STATUS PreReadWrite( 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 ); 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; tapeInitData.PreProcessReadWrite = PreReadWrite; 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 ; extension->writeMode = FALSE; } TAPE_STATUS PreReadWrite( 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. (always NULL) CommandParameters - Supplies the command parameters. Srb - Supplies the SCSI request block. CallNumber - Supplies the call number. (always NULL) RetryFlags - Supplies the retry flags. (always NULL) Return Value: TAPE_STATUS_SUCCESS - The command is complete and successful. Otherwise - An error occurred. --*/ { PMINITAPE_EXTENSION extension = MinitapeExtension; if (Srb->Cdb[0] == SCSIOP_WRITE6) { extension->writeMode = TRUE; } return TAPE_STATUS_SUCCESS; } 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: CallNubmer %x\n",CallNumber)); 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; buffer->MediumPartPage.MediumFormatRecognition = 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: CallNumber %x\n",CallNumber)); 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; #if DBG int i; char a[40]; #endif DebugPrint((3,"TapeError: Enter routine\n")); DebugPrint((1,"TapeError: Status 0x%.8X\n", *LastError)); DebugPrint((1,"TapeError: SenseKey %x AddSenseCode %x AddSenseQual%x\n", sensekey, adsense, adsenseq)); #if DBG #define HEX(a) (((a)&0xf)>0x9?((a)&0xf)+'a'-0xa:((a)&0xf)+'0') for (i=0;iCdbLength;++i) { a[i*3] = HEX(Srb->Cdb[i] >> 4); a[i*3+1] = HEX(Srb->Cdb[i]); a[i*3+2] = ' '; a[i*3+3] = '\0'; } #endif DebugPrint((1,"cdb: %s\n", a)); // // If we get a filemark error, and the block skip is 0x7fffff then // we are tring to do a sequential seek. // if (Srb->Cdb[0] == 0x11 && Srb->Cdb[2] == 0x7f && Srb->Cdb[3] == 0xff && Srb->Cdb[4] == 0xff && *LastError == TAPE_STATUS_FILEMARK_DETECTED) { DebugPrint((3,"TapeError: changing error to success\n")); *LastError = TAPE_STATUS_SUCCESS; } 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; PREAD_BLOCK_LIMITS_DATA blockLimits; PMODE_PARM_READ_WRITE_DATA blockDescripterModeSenseBuffer; DebugPrint((3,"TapeGetDriveParameters: CallNumber %x\n",CallNumber)); if (CallNumber == 0) { TapeClassZeroMemory(tapeGetDriveParams, sizeof(TAPE_GET_DRIVE_PARAMETERS)); switch (extension->DriveID) { case HPT4000s: 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 ; // 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; 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 == 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 = 2; tapeGetDriveParams->DefaultBlockSize = 512; 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 | TAPE_DRIVE_EJECT_MEDIA; 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: CallNumber %x\n",CallNumber)); 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: CallNumber %x\n",CallNumber)); 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 ) { deviceConfigBuffer = Srb->DataBuffer ; extension->CurrentPartition = deviceConfigBuffer->DeviceConfigPage.ActivePartition? DIRECTORY_PARTITION : DATA_PARTITION; } switch (cmdExtension->pos_type) { case TAPE_ABSOLUTE_POSITION: DebugPrint((3,"TapeGetPosition: absolute\n")); break; case TAPE_LOGICAL_POSITION: DebugPrint((3,"TapeGetPosition: 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 == 4 ) ; readPositionBuffer = Srb->DataBuffer ; REVERSE_BYTES((PFOUR_BYTE)&tapeBlockAddress, (PFOUR_BYTE)readPositionBuffer->FirstBlock); tapeGetPosition->Offset.HighPart = 0; tapeGetPosition->Offset.LowPart = tapeBlockAddress; if (cmdExtension->pos_type != TAPE_ABSOLUTE_POSITION) { tapeGetPosition->Partition = extension->CurrentPartition; } if (readPositionBuffer->BlockPositionUnsupported) return TAPE_STATUS_NOT_IMPLEMENTED; else 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: CallNumber %x\n",CallNumber)); 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; PMINITAPE_EXTENSION extension = MinitapeExtension; DebugPrint((3,"TapePrepare: CallNumber %x\n",CallNumber)); 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")); return TAPE_STATUS_SUCCESS; cdb->CDB6GENERIC.OperationCode = SCSIOP_MEDIUM_REMOVAL; cdb->CDB6GENERIC.CommandUniqueBytes[2] = 0x01; Srb->TimeOutValue = 320; break; case TAPE_UNLOCK: DebugPrint((3,"TapePrepare: Operation == unlock\n")); if (!extension->writeMode) { return TAPE_STATUS_SUCCESS; } extension->writeMode = FALSE; DebugPrint((3,"TapePrepare: sending rewind\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_REWIND; // 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 ; } switch (tapePrepare->Operation) { case TAPE_UNLOCK: if (CallNumber == 1) { DebugPrint((3,"TapePrepare: sending seek EOD\n")); // Now That we have re-wound, repos back to EOD cdb->SPACE_TAPE_MARKS.OperationCode = SCSIOP_SPACE; cdb->SPACE_TAPE_MARKS.Code = 3; Srb->TimeOutValue = 360; // six minutes return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } else { ASSERT(CallNumber == 2); return TAPE_STATUS_SUCCESS; } break; default: 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: CallNumber %x\n",CallNumber)); return TAPE_STATUS_NOT_IMPLEMENTED; } // 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: CallNumber %x\n",CallNumber)); return TAPE_STATUS_NOT_IMPLEMENTED; } // 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; PCDB cdb = (PCDB)Srb->Cdb; DebugPrint((3,"TapeSetPosition: CallNumber %x\n",CallNumber)); if (CallNumber == 0) { cmdExtension->changePartition = FALSE; cmdExtension->filemarksLeft = 0; 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; } // // 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 ) { PMODE_TAPE_MEDIA_INFORMATION mediaInfoBuffer; 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; } // // 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 ) { ULONG tapePositionVector; PMODE_DEVICE_CONFIG_PAGE deviceConfigBuffer; // // If we are doing a logical block locate, and // we just got the device configuration to get // the current partition // if (cmdExtension->pos_type == TAPE_LOGICAL_BLOCK && LastError != TAPE_STATUS_CALLBACK ) { deviceConfigBuffer = Srb->DataBuffer ; // Get the current partition extension->CurrentPartition = deviceConfigBuffer->DeviceConfigPage.ActivePartition? DIRECTORY_PARTITION : DATA_PARTITION; // Get the new partition switch (tapeSetPosition->Partition) { case 0: // No new partition, ignore 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; } } tapePositionVector = tapeSetPosition->Offset.LowPart; // // 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; } switch (cmdExtension->pos_type) { case TAPE_REWIND: DebugPrint((3,"TapeSetPosition: method == rewind\n")); cdb->CDB6GENERIC.OperationCode = SCSIOP_REWIND; Srb->TimeOutValue = 320; break; case TAPE_ABSOLUTE_BLOCK: case TAPE_LOGICAL_BLOCK: Srb->CdbLength = CDB10GENERIC_LENGTH; cdb->LOCATE.OperationCode = SCSIOP_LOCATE; cdb->LOCATE.CPBit = cmdExtension->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 (cmdExtension->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 = 360; // 6 minutes 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")); // // The hp t4000 drive does not support space forward // filemarks, so space a bunch of blocks instead // if (/* hpt4000 && */ (tapePositionVector & 0x800000) == 0) { DebugPrint((3,"TapeSetPosition: sending first mark\n")); cmdExtension->filemarksLeft = tapePositionVector-1; cdb->SPACE_TAPE_MARKS.OperationCode = SCSIOP_SPACE; cdb->SPACE_TAPE_MARKS.Code = 0; cdb->SPACE_TAPE_MARKS.NumMarksMSB = 0x7f; cdb->SPACE_TAPE_MARKS.NumMarks = 0xff; cdb->SPACE_TAPE_MARKS.NumMarksLSB = 0xff; } else { 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 == 3 ) { // We successfully change partitions, so set our mirror number if (cmdExtension->changePartition) { extension->CurrentPartition = tapeSetPosition->Partition; } } // // Repeatedly send the "space a bunch-o-blocks" command until we have // skipped all of the filemarks // if (CallNumber >= 3 && cmdExtension->filemarksLeft--) { // // for the HP T4000 drive, it does not support space forward filemarks // so a space 0x7fffff blocks was issued instead. // DebugPrint((3,"TapeSetPosition: sending next mark\n")); cdb->SPACE_TAPE_MARKS.OperationCode = SCSIOP_SPACE; cdb->SPACE_TAPE_MARKS.Code = 0; cdb->SPACE_TAPE_MARKS.NumMarksMSB = 0x7f; cdb->SPACE_TAPE_MARKS.NumMarks = 0xff; cdb->SPACE_TAPE_MARKS.NumMarksLSB = 0xff; return TAPE_STATUS_SEND_SRB_AND_CALLBACK ; } 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: CallNumber %x\n",CallNumber)); 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() 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,"HP ",8) == 8) { if (TapeClassCompareMemory(InquiryData->ProductId,"T4000",5) == 5) { return HPT4000s; } } return (ULONG)0; }