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Microsoft Windows NT Build 511 (DDK SDK) 11-01-1993
/*++
Copyright (c) 1992 Microsoft Corporation
Module Name:
exabyte1.c
Abstract:
This module contains the device-specific routines for the Exabyte
EXB-8200 tape drive and the Exabyte EXB-8200sx handled as an EXB-8200.
Author:
Mike Glass
Hunter Small (Maynard)
Lori Brown (Maynard)
Chris Hugh Sam (Maynard)
Environment:
kernel mode only
Revision History:
--*/
#include "ntddk.h"
#include "tape.h"
//
// Internal (module wide) defines that symbolize
// the 8mm drives supported by this module.
//
#define EXABYTE_8200 1 // aka the Maynard 2200hs & 2200+
#define EXABYTE_8200SX 2 // Exabyte's own brand (OEM?) 8200SX
#define EXABYTE_8205 3 // An Exabyte 8200 with data compresion
//
// 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);
NTSTATUS
TapeCreatePartition(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine would partition the tape if the drive was able to do
so: because the drive cannot do so, this routine always returns a
STATUS_NOT_IMPLEMENTED status.
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
DebugPrint((3,"TapeCreatePartition: Enter routine\n"));
DebugPrint((1,"TapeCreatePartition: operation not supported\n"));
return STATUS_NOT_IMPLEMENTED;
} // end TapeCreatePartition()
NTSTATUS
TapeErase(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine will erase to EOT from the "current position" on tape;
i.e., tape will be erased to EOT from the point on tape at which the
tape is positioned at the time of entry herein.
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
PTAPE_ERASE tapeErase = Irp->AssociatedIrp.SystemBuffer;
SCSI_REQUEST_BLOCK srb;
PCDB cdb = (PCDB)srb.Cdb;
NTSTATUS status;
DebugPrint((3,"TapeErase: Enter routine\n"));
if (tapeErase->Immediate) {
DebugPrint((1,"TapeErase: EraseType, immediate -- operation not supported\n"));
return 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 STATUS_NOT_IMPLEMENTED;
}
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Prepare SCSI command (CDB)
//
srb.CdbLength = CDB6GENERIC_LENGTH;
cdb->ERASE.OperationCode = SCSIOP_ERASE;
cdb->ERASE.Long = SETBITON;
//
// Set timeout value.
//
srb.TimeOutValue = 18000;
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapeErase: SendSrb (erase)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
NULL,
0,
FALSE);
if (!NT_SUCCESS(status)) {
DebugPrint((1,"TapeErase: erase, SendSrb unsuccessful\n"));
}
return status;
} // end TapeErase()
VOID
TapeError(
PDEVICE_OBJECT DeviceObject,
PSCSI_REQUEST_BLOCK Srb,
NTSTATUS *Status,
BOOLEAN *Retry
)
/*++
Routine Description:
When a request completes with error, the routine InterpretSenseInfo is
called to determine from the sense data whether the request should be
retried and what NT status to set in the IRP. Then this routine is called
for tape requests to handle tape-specific errors and update the nt status
and retry boolean.
Arguments:
DeviceObject - Supplies a pointer to the device object.
Srb - Supplies a pointer to the failing Srb.
Status - NT Status used to set the IRP's completion status.
Retry - Indicates that this request should be retried.
Return Value:
None.
--*/
{
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
PSENSE_DATA senseBuffer = Srb->SenseInfoBuffer;
NTSTATUS status = *Status;
BOOLEAN retry = *Retry;
UCHAR adsenseq = senseBuffer->AdditionalSenseCodeQualifier;
UCHAR adsense = senseBuffer->AdditionalSenseCode;
DebugPrint((3,"TapeError: Enter routine\n"));
DebugPrint((1,"TapeError: Status 0x%.8X, Retry %d\n", status, retry));
switch (status) {
case STATUS_DEVICE_NOT_READY:
*Status = STATUS_NO_MEDIA;
*Retry = FALSE;
break;
case STATUS_NO_DATA_DETECTED:
break;
}
DebugPrint((1,"TapeError: Status 0x%.8X, Retry %d\n", *Status, *Retry));
return;
} // end TapeError()
NTSTATUS
TapeGetDriveParameters(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine returns an indication if reporting setmarks is disabled or
enabled, the default fixed-block size, the maximum block size, the
minimum block size, the maximum number of partitions, and the device
features flag.
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
PTAPE_GET_DRIVE_PARAMETERS tapeGetDriveParams = Irp->AssociatedIrp.SystemBuffer;
PREAD_BLOCK_LIMITS_DATA blockLimits;
SCSI_REQUEST_BLOCK srb;
PCDB cdb = (PCDB)srb.Cdb;
NTSTATUS status;
DebugPrint((3,"TapeGetDriveParameters: Enter routine\n"));
RtlZeroMemory(tapeGetDriveParams, sizeof(TAPE_GET_DRIVE_PARAMETERS));
Irp->IoStatus.Information = sizeof(TAPE_GET_DRIVE_PARAMETERS);
blockLimits = ExAllocatePool(NonPagedPoolCacheAligned,
sizeof(READ_BLOCK_LIMITS_DATA));
if (!blockLimits) {
DebugPrint((1,"TapeGetDriveParameters: insufficient resources (blockLimits)\n"));
return STATUS_INSUFFICIENT_RESOURCES;
}
RtlZeroMemory(blockLimits, sizeof(READ_BLOCK_LIMITS_DATA));
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Prepare SCSI command (CDB)
//
srb.CdbLength = CDB6GENERIC_LENGTH;
cdb->CDB6GENERIC.OperationCode = SCSIOP_READ_BLOCK_LIMITS;
//
// Set timeout value.
//
srb.TimeOutValue = deviceExtension->TimeOutValue;
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapeGetDriveParameters: SendSrb (read block limits)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
blockLimits,
sizeof(READ_BLOCK_LIMITS_DATA),
FALSE);
if (NT_SUCCESS(status)) {
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);
}
ExFreePool(blockLimits);
if (!NT_SUCCESS(status)) {
DebugPrint((1,"TapeGetDriveParameters: read block limits, SendSrb unsuccessful\n"));
return status;
}
tapeGetDriveParams->ECC = 0;
tapeGetDriveParams->Compression = 0;
tapeGetDriveParams->DataPadding = 0;
tapeGetDriveParams->ReportSetmarks = 0;
tapeGetDriveParams->MaximumPartitionCount = 0;
tapeGetDriveParams->DefaultBlockSize = 1024;
tapeGetDriveParams->FeaturesLow |=
TAPE_DRIVE_ERASE_LONG |
TAPE_DRIVE_FIXED_BLOCK |
TAPE_DRIVE_VARIABLE_BLOCK |
TAPE_DRIVE_WRITE_PROTECT;
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;
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 status;
} // end TapeGetDriveParameters()
NTSTATUS
TapeGetMediaParameters(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine determines and returns the "media parameters" of the
Exabyte 8200 tape drive associated with "DeviceObject". Tape media
must be present (loaded) in the drive for this function to return
"no error".
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
PTAPE_GET_MEDIA_PARAMETERS tapeGetMediaParams = Irp->AssociatedIrp.SystemBuffer;
PMODE_PARM_READ_WRITE_DATA modeBuffer;
ULONG sectorShift;
SCSI_REQUEST_BLOCK srb;
PCDB cdb = (PCDB)srb.Cdb;
NTSTATUS status;
DebugPrint((3,"TapeGetMediaParameters: Enter routine\n"));
RtlZeroMemory(tapeGetMediaParams, sizeof(TAPE_GET_MEDIA_PARAMETERS));
Irp->IoStatus.Information = sizeof(TAPE_GET_MEDIA_PARAMETERS);
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Prepare SCSI command (CDB)
//
srb.CdbLength = CDB6GENERIC_LENGTH;
cdb->CDB6GENERIC.OperationCode = SCSIOP_TEST_UNIT_READY;
//
// Set timeout value.
//
srb.TimeOutValue = deviceExtension->TimeOutValue;
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapeGetMediaParameters: SendSrb (test unit ready)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
NULL,
0,
FALSE);
if (!NT_SUCCESS(status)) {
DebugPrint((1,"TapeGetMediaParameters: test unit ready, SendSrb unsuccessful\n"));
return status;
}
modeBuffer = ExAllocatePool(NonPagedPoolCacheAligned,
EXABYTE_MODE_LENGTH);
if (!modeBuffer) {
DebugPrint((1,"TapeGetMediaParameters: insufficient resources (modeBuffer)\n"));
return STATUS_INSUFFICIENT_RESOURCES;
}
RtlZeroMemory(modeBuffer, EXABYTE_MODE_LENGTH);
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Prepare SCSI command (CDB)
//
srb.CdbLength = CDB6GENERIC_LENGTH;
cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE;
cdb->MODE_SENSE.AllocationLength = EXABYTE_MODE_LENGTH;
//
// Set timeout value.
//
srb.TimeOutValue = deviceExtension->TimeOutValue;
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapeGetMediaParameters: SendSrb (mode sense)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
modeBuffer,
EXABYTE_MODE_LENGTH,
FALSE);
if (NT_SUCCESS(status)) {
tapeGetMediaParams->BlockSize = modeBuffer->ParameterListBlock.BlockLength[2];
tapeGetMediaParams->BlockSize += (modeBuffer->ParameterListBlock.BlockLength[1] << 8);
tapeGetMediaParams->BlockSize += (modeBuffer->ParameterListBlock.BlockLength[0] << 16);
WHICH_BIT(tapeGetMediaParams->BlockSize, sectorShift);
deviceExtension->DiskGeometry->BytesPerSector = tapeGetMediaParams->BlockSize;
deviceExtension->SectorShift = sectorShift;
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 = 0;
modeBuffer->ParameterListBlock.NumberOfBlocks[0] = 0;
modeBuffer->ParameterListBlock.NumberOfBlocks[1] = 0;
modeBuffer->ParameterListBlock.NumberOfBlocks[2] = 0;
cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT;
ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
modeBuffer,
EXABYTE_MODE_LENGTH,
TRUE);
} else {
DebugPrint((1,"TapeGetMediaParameters: mode sense, SendSrb unsuccessful\n"));
}
ExFreePool(modeBuffer);
return status;
} // end TapeGetMediaParameters()
NTSTATUS
TapeGetPosition(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine would return the current position of the tape;
however, this drive does not support doing so. Hence, this
routine always returns a STATUS_NOT_IMPLEMENTED status.
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
DebugPrint((3,"TapeGetPosition: Enter routine\n"));
DebugPrint((1,"TapeGetPosition: operation not supported\n"));
return STATUS_NOT_IMPLEMENTED;
} // end TapeGetPosition()
NTSTATUS
TapeGetStatus(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine returns the status of the device.
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
SCSI_REQUEST_BLOCK srb;
PCDB cdb = (PCDB)srb.Cdb;
NTSTATUS status;
DebugPrint((3,"TapeGetStatus: Enter routine\n"));
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Prepare SCSI command (CDB)
//
srb.CdbLength = CDB6GENERIC_LENGTH;
cdb->CDB6GENERIC.OperationCode = SCSIOP_TEST_UNIT_READY;
//
// Set timeout value.
//
srb.TimeOutValue = deviceExtension->TimeOutValue;
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapeGetStatus: SendSrb (test unit ready)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
NULL,
0,
FALSE);
if (!NT_SUCCESS(status)) {
DebugPrint((1,"TapeGetStatus: test unit ready, SendSrb unsuccessful\n"));
}
return status;
} // end TapeGetStatus()
NTSTATUS
TapePrepare(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine loads, unloads, locks, or unlocks the tape.
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
PTAPE_PREPARE tapePrepare = Irp->AssociatedIrp.SystemBuffer;
SCSI_REQUEST_BLOCK srb;
PCDB cdb = (PCDB)srb.Cdb;
NTSTATUS status;
DebugPrint((3,"TapePrepare: Enter routine\n"));
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 STATUS_NOT_IMPLEMENTED;
}
}
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(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;
default:
DebugPrint((1,"TapePrepare: Operation -- operation not supported\n"));
return STATUS_NOT_IMPLEMENTED;
}
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapePrepare: SendSrb (Operation)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
NULL,
0,
FALSE);
if (!NT_SUCCESS(status)) {
DebugPrint((1,"TapePrepare: Operation, SendSrb unsuccessful\n"));
}
return status;
} // end TapePrepare()
NTSTATUS
TapeReadWrite(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine builds SRBs and CDBs for read and write requests to
Exabyte 8200 drives.
Arguments:
DeviceObject
Irp
Return Value:
Returns STATUS_PENDING.
--*/
{
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
PIO_STACK_LOCATION currentIrpStack = IoGetCurrentIrpStackLocation(Irp);
PIO_STACK_LOCATION nextIrpStack = IoGetNextIrpStackLocation(Irp);
PSCSI_REQUEST_BLOCK srb;
PCDB cdb;
KIRQL currentIrql;
ULONG transferBlocks;
LARGE_INTEGER startingOffset =
currentIrpStack->Parameters.Read.ByteOffset;
DebugPrint((3,"TapeReadWrite: Enter routine\n"));
//
// Allocate an Srb.
//
if (deviceExtension->SrbZone != NULL &&
(srb = ExInterlockedAllocateFromZone(
deviceExtension->SrbZone,
deviceExtension->SrbZoneSpinLock)) != NULL) {
srb->SrbFlags = SRB_FLAGS_ALLOCATED_FROM_ZONE;
} else {
//
// Allocate Srb from non-paged pool.
// This call must succeed.
//
srb = ExAllocatePool(NonPagedPoolMustSucceed, SCSI_REQUEST_BLOCK_SIZE);
srb->SrbFlags = 0;
}
//
// Write length to SRB.
//
srb->Length = SCSI_REQUEST_BLOCK_SIZE;
//
// Set up IRP Address.
//
srb->OriginalRequest = Irp;
//
// Set up target id and logical unit number.
//
srb->PathId = deviceExtension->PathId;
srb->TargetId = deviceExtension->TargetId;
srb->Lun = deviceExtension->Lun;
srb->Function = SRB_FUNCTION_EXECUTE_SCSI;
srb->DataBuffer = MmGetMdlVirtualAddress(Irp->MdlAddress);
//
// Save byte count of transfer in SRB Extension.
//
srb->DataTransferLength = currentIrpStack->Parameters.Read.Length;
//
// Indicate auto request sense by specifying buffer and size.
//
srb->SenseInfoBuffer = deviceExtension->SenseData;
srb->SenseInfoBufferLength = SENSE_BUFFER_SIZE;
//
// Initialize the queue actions field.
//
srb->QueueAction = SRB_SIMPLE_TAG_REQUEST;
//
// Set timeout value in seconds.
//
srb->TimeOutValue = deviceExtension->TimeOutValue;
//
// Zero statuses.
//
srb->SrbStatus = srb->ScsiStatus = 0;
srb->NextSrb = 0;
//
// Indicate that 6-byte CDB's will be used.
//
srb->CdbLength = CDB6GENERIC_LENGTH;
//
// Fill in CDB fields.
//
cdb = (PCDB)srb->Cdb;
//
// Zero CDB in SRB.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Since we are writing fixed block mode, normalize transfer count
// to number of blocks.
//
transferBlocks =
currentIrpStack->Parameters.Read.Length >> deviceExtension->SectorShift;
//
// Set up transfer length
//
cdb->CDB6READWRITETAPE.TransferLenMSB = (UCHAR)((transferBlocks >> 16) & 0xff);
cdb->CDB6READWRITETAPE.TransferLen = (UCHAR)((transferBlocks >> 8) & 0xff);
cdb->CDB6READWRITETAPE.TransferLenLSB = (UCHAR)(transferBlocks & 0xff);
//
// Tell the drive we are in fixed block mode
//
cdb->CDB6READWRITETAPE.VendorSpecific = 1;
//
// Set transfer direction flag and Cdb command.
//
if (currentIrpStack->MajorFunction == IRP_MJ_READ) {
DebugPrint((3, "TapeRequest: Read Command\n"));
srb->SrbFlags = SRB_FLAGS_DATA_IN;
cdb->CDB6READWRITETAPE.OperationCode = SCSIOP_READ6;
} else {
DebugPrint((3, "TapeRequest: Write Command\n"));
srb->SrbFlags = SRB_FLAGS_DATA_OUT;
cdb->CDB6READWRITETAPE.OperationCode = SCSIOP_WRITE6;
}
//
// Or in the default flags from the device object.
//
srb->SrbFlags |= deviceExtension->SrbFlags;
//
// Set up major SCSI function.
//
nextIrpStack->MajorFunction = IRP_MJ_SCSI;
//
// Save SRB address in next stack for port driver.
//
nextIrpStack->Parameters.Scsi.Srb = srb;
//
// Save retry count in current IRP stack.
//
currentIrpStack->Parameters.Others.Argument4 = (PVOID)MAXIMUM_RETRIES;
//
// Set up IoCompletion routine address.
//
IoSetCompletionRoutine(Irp,
ScsiClassIoComplete,
srb,
TRUE,
TRUE,
FALSE);
return STATUS_PENDING;
} // end TapeReadWrite()
NTSTATUS
TapeSetDriveParameters(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine would "set" the "drive parameters", but this drive does not
support doing so: this routine always returns a STATUS_NOT_IMPLEMENTED
status
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
DebugPrint((3,"TapeSetDriveParameters: Enter routine\n"));
DebugPrint((1,"TapeSetDriveParameters: operation not supported\n"));
return STATUS_NOT_IMPLEMENTED;
} // end TapeSetDriveParameters()
NTSTATUS
TapeSetMediaParameters(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine "sets" the "media parameters" of the Exabyte 8200 tape
drive associated with "DeviceObject". Tape media must be present
(loaded) in the drive for this function to return "no error".
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
PTAPE_SET_MEDIA_PARAMETERS tapeSetMediaParams = Irp->AssociatedIrp.SystemBuffer;
PMODE_PARM_READ_WRITE_DATA modeBuffer;
SCSI_REQUEST_BLOCK srb;
PCDB cdb = (PCDB)srb.Cdb;
NTSTATUS status;
DebugPrint((3,"TapeSetMediaParameters: Enter routine\n"));
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Prepare SCSI command (CDB)
//
srb.CdbLength = CDB6GENERIC_LENGTH;
cdb->CDB6GENERIC.OperationCode = SCSIOP_TEST_UNIT_READY;
//
// Set timeout value.
//
srb.TimeOutValue = deviceExtension->TimeOutValue;
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapeSetMediaParameters: SendSrb (test unit ready)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
NULL,
0,
FALSE);
if (!NT_SUCCESS(status)) {
DebugPrint((1,"TapeSetMediaParameters: test unit ready, SendSrb unsuccessful\n"));
return status;
}
modeBuffer = ExAllocatePool(NonPagedPoolCacheAligned,
sizeof(MODE_PARM_READ_WRITE_DATA));
if (!modeBuffer) {
DebugPrint((1,"TapeSetMediaParameters: insufficient resources (modeBuffer)\n"));
return STATUS_INSUFFICIENT_RESOURCES;
}
RtlZeroMemory(modeBuffer, sizeof(MODE_PARM_READ_WRITE_DATA));
modeBuffer->ParameterListHeader.ModeDataLength = 0;
modeBuffer->ParameterListHeader.MediumType = 0;
modeBuffer->ParameterListHeader.DeviceSpecificParameter = 0x10;
modeBuffer->ParameterListHeader.BlockDescriptorLength =
MODE_BLOCK_DESC_LENGTH;
modeBuffer->ParameterListBlock.DensityCode = 0;
modeBuffer->ParameterListBlock.BlockLength[0] =
((tapeSetMediaParams->BlockSize >> 16) & 0xFF);
modeBuffer->ParameterListBlock.BlockLength[1] =
((tapeSetMediaParams->BlockSize >> 8) & 0xFF);
modeBuffer->ParameterListBlock.BlockLength[2] =
(tapeSetMediaParams->BlockSize & 0xFF);
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Prepare SCSI command (CDB)
//
srb.CdbLength = CDB6GENERIC_LENGTH;
cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT;
cdb->MODE_SELECT.ParameterListLength = sizeof(MODE_PARM_READ_WRITE_DATA);
//
// Set timeout value.
//
srb.TimeOutValue = deviceExtension->TimeOutValue;
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapeSetMediaParameters: SendSrb (mode select)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
modeBuffer,
sizeof(MODE_PARM_READ_WRITE_DATA),
TRUE);
ExFreePool(modeBuffer);
if (!NT_SUCCESS(status)) {
DebugPrint((1,"TapeSetMediaParameters: mode select, SendSrb unsuccessful\n"));
}
return status;
} // end TapeSetMediaParameters()
NTSTATUS
TapeSetPosition(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine sets the position of the tape.
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
PTAPE_SET_POSITION tapeSetPosition = Irp->AssociatedIrp.SystemBuffer;
ULONG tapePositionVector;
ULONG method;
SCSI_REQUEST_BLOCK srb;
PCDB cdb = (PCDB)srb.Cdb;
NTSTATUS status;
DebugPrint((3,"TapeSetPosition: Enter routine\n"));
if (tapeSetPosition->Immediate) {
switch (tapeSetPosition->Method) {
case TAPE_REWIND:
DebugPrint((3,"TapeSetPosition: immediate\n"));
break;
case TAPE_ABSOLUTE_BLOCK:
case TAPE_LOGICAL_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 STATUS_NOT_IMPLEMENTED;
}
}
method = tapeSetPosition->Method;
tapePositionVector = tapeSetPosition->Offset.LowPart;
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Prepare SCSI command (CDB)
//
srb.CdbLength = CDB6GENERIC_LENGTH;
cdb->CDB6GENERIC.Immediate = tapeSetPosition->Immediate;
switch (method) {
case TAPE_REWIND:
DebugPrint((3,"TapeSetPosition: method == rewind\n"));
cdb->CDB6GENERIC.OperationCode = SCSIOP_REWIND;
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 =
((tapePositionVector >> 16) & 0xFF);
cdb->SPACE_TAPE_MARKS.NumMarks =
((tapePositionVector >> 8) & 0xFF);
cdb->SPACE_TAPE_MARKS.NumMarksLSB =
(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 =
((tapePositionVector >> 16) & 0xFF);
cdb->SPACE_TAPE_MARKS.NumMarks =
((tapePositionVector >> 8) & 0xFF);
cdb->SPACE_TAPE_MARKS.NumMarksLSB =
(tapePositionVector & 0xFF);
srb.TimeOutValue = 4100;
break;
case TAPE_ABSOLUTE_BLOCK:
case TAPE_LOGICAL_BLOCK:
case TAPE_SPACE_END_OF_DATA:
case TAPE_SPACE_SEQUENTIAL_FMKS:
case TAPE_SPACE_SETMARKS:
case TAPE_SPACE_SEQUENTIAL_SMKS:
default:
DebugPrint((1,"TapeSetPosition: PositionMethod -- operation not supported\n"));
return STATUS_NOT_IMPLEMENTED;
}
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapeSetPosition: SendSrb (method)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
NULL,
0,
FALSE);
if (!NT_SUCCESS(status)) {
DebugPrint((1,"TapeSetPosition: method, SendSrb unsuccessful\n"));
}
return status;
} // end TapeSetPosition()
BOOLEAN
TapeVerifyInquiry(
IN PSCSI_INQUIRY_DATA LunInfo
)
/*++
Routine Description:
This routine determines if this driver should claim this drive.
Arguments:
LunInfo
Return Value:
TRUE - driver should claim this drive.
FALSE - driver should not claim this drive.
--*/
{
PINQUIRYDATA inquiryData;
DebugPrint((3,"TapeVerifyInquiry: Enter routine\n"));
inquiryData = (PVOID)LunInfo->InquiryData;
//
// Determine, from the Product ID field in the
// inquiry data, whether or not to "claim" this drive.
//
return WhichIsIt(inquiryData)? TRUE : FALSE;
} // end TapeVerifyInquiry()
NTSTATUS
TapeWriteMarks(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine writes tapemarks on the tape.
Arguments:
DeviceObject
Irp
Return Value:
NTSTATUS
--*/
{
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
PTAPE_WRITE_MARKS tapeWriteMarks = Irp->AssociatedIrp.SystemBuffer;
SCSI_REQUEST_BLOCK srb;
PCDB cdb = (PCDB)srb.Cdb;
NTSTATUS status;
DebugPrint((3,"TapeWriteMarks: Enter routine\n"));
if (tapeWriteMarks->Immediate) {
DebugPrint((1,"TapeWriteMarks: TapemarkType, immediate -- operation not supported\n"));
return STATUS_NOT_IMPLEMENTED;
}
//
// Zero CDB in SRB on stack.
//
RtlZeroMemory(cdb, MAXIMUM_CDB_SIZE);
//
// Prepare SCSI command (CDB)
//
srb.CdbLength = CDB6GENERIC_LENGTH;
cdb->WRITE_TAPE_MARKS.OperationCode = SCSIOP_WRITE_FILEMARKS;
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 STATUS_NOT_IMPLEMENTED;
}
cdb->WRITE_TAPE_MARKS.TransferLength[0] =
((tapeWriteMarks->Count >> 16) & 0xFF);
cdb->WRITE_TAPE_MARKS.TransferLength[1] =
((tapeWriteMarks->Count >> 8) & 0xFF);
cdb->WRITE_TAPE_MARKS.TransferLength[2] =
(tapeWriteMarks->Count & 0xFF);
//
// Set timeout value.
//
srb.TimeOutValue = deviceExtension->TimeOutValue;
//
// Send SCSI command (CDB) to device
//
DebugPrint((3,"TapeWriteMarks: SendSrb (TapemarkType)\n"));
status = ScsiClassSendSrbSynchronous(DeviceObject,
&srb,
NULL,
0,
FALSE);
if (!NT_SUCCESS(status)) {
DebugPrint((1,"TapeWriteMarks: TapemarkType, SendSrb unsuccessful\n"));
}
return status;
} // end TapeWriteMarks()
static
ULONG
WhichIsIt(
IN PINQUIRYDATA InquiryData
)
/*++
Routine Description:
This routine determines a drive's identity from the Product ID field
in its inquiry data.
Arguments:
InquiryData (from an Inquiry command)
Return Value:
driveID
--*/
{
if (RtlCompareMemory(InquiryData->VendorId,"EXABYTE ",8) == 8) {
if (RtlCompareMemory(InquiryData->ProductId,"EXB-8200",8) == 8) {
return EXABYTE_8200;
}
if (RtlCompareMemory(InquiryData->ProductId,"EXB8200C",8) == 8) {
return EXABYTE_8200;
}
if (RtlCompareMemory(InquiryData->ProductId,"8200SX",6) == 6) {
return EXABYTE_8200SX;
}
if (RtlCompareMemory(InquiryData->ProductId,"EXB-8205",8) == 8) {
return EXABYTE_8205;
}
}
return 0;
}
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