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[CLASS2]

Browse source 
- Add symlink creation support for CDROM devices
[USBSTOR]
- Simply forward unsupported SCSI operations

Fixes USB CDROM support. CORE-6591 #resolve
Patch by Johannes "USB God" Anderwald.

svn path=/trunk/; revision=59091
This commit is contained in:
Thomas Faber 2013-05-27 18:39:32 +00:00
parent 7e7378f7c9
commit a701847436
3 changed files with 62 additions and 41 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

42
reactos/drivers/storage/class/class2/class2.c
View file

@ -137,6 +137,7 @@ DriverEntry(
/* The following hack to assign drive letters with a non-PnP storage stack */
typedef struct _CLASS_DEVICE_INFO {
ULONG DeviceType;
ULONG Partitions;
ULONG DeviceNumber;
ULONG DriveNumber;
@ -205,7 +206,15 @@ ScsiClassAssignDriveLetter(PCLASS_DEVICE_INFO DeviceInfo)
do
{
/* Check that the disk exists */
if (DeviceInfo->DeviceType == FILE_DEVICE_DISK)
{
PartitionU.Length = swprintf(PartitionU.Buffer, L"\\Device\\HardDisk%d\\Partition0", DeviceNumber) * sizeof(WCHAR);
}
else if (DeviceInfo->DeviceType == FILE_DEVICE_CD_ROM)
{
PartitionU.Length = swprintf(PartitionU.Buffer, L"\\Device\\CdRom%d", DeviceNumber) * sizeof(WCHAR);
}
InitializeObjectAttributes(&ObjectAttributes,
&PartitionU,
OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
@ -233,7 +242,14 @@ ScsiClassAssignDriveLetter(PCLASS_DEVICE_INFO DeviceInfo)
do
{
/* Check that the drive exists */
if (DeviceInfo->DeviceType == FILE_DEVICE_DISK)
{
PartitionU.Length = swprintf(PartitionU.Buffer, L"\\??\\PhysicalDrive%d", DriveNumber) * sizeof(WCHAR);
}
else if (DeviceInfo->DeviceType == FILE_DEVICE_CD_ROM)
{
PartitionU.Length = swprintf(PartitionU.Buffer, L"\\??\\%C:", ('C' + DriveNumber)) * sizeof(WCHAR);
}
InitializeObjectAttributes(&ObjectAttributes,
&PartitionU,
OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
@ -252,19 +268,37 @@ ScsiClassAssignDriveLetter(PCLASS_DEVICE_INFO DeviceInfo)
}
} while (Status == STATUS_SUCCESS);
/* Create the symbolic link to PhysicalDriveX */
if (DeviceInfo->DeviceType == FILE_DEVICE_DISK)
{
PartitionU.Length = swprintf(PartitionU.Buffer, L"\\Device\\Harddisk%d\\Partition0", DeviceNumber) * sizeof(WCHAR);
DriveLetterU.Length = swprintf(DriveLetterU.Buffer, L"\\??\\PhysicalDrive%d", DriveNumber) * sizeof(WCHAR);
}
else if (DeviceInfo->DeviceType == FILE_DEVICE_CD_ROM)
{
PartitionU.Length = swprintf(PartitionU.Buffer, L"\\Device\\CdRom%d", DeviceNumber) * sizeof(WCHAR);
DriveLetterU.Length = swprintf(DriveLetterU.Buffer, L"\\??\\%C:", ('C' + DriveNumber)) * sizeof(WCHAR);
}
/* Create the symbolic link to PhysicalDriveX */
Status = IoCreateSymbolicLink(&DriveLetterU, &PartitionU);
if (!NT_SUCCESS(Status))
{
/* Failed to create symbolic link */
DbgPrint("Failed to create symbolic link %wZ -> %wZ with %lx\n", &PartitionU, &DriveLetterU, Status);
return Status;
}
DbgPrint("HACK: Created symbolic link %wZ -> %wZ\n", &PartitionU, &DriveLetterU);
DeviceInfo->DeviceNumber = DeviceNumber;
DeviceInfo->DriveNumber = DriveNumber;
if (DeviceInfo->DeviceType == FILE_DEVICE_CD_ROM)
{
/* done for cdroms */
return STATUS_SUCCESS;
}
while (TRUE)
{
/* Check that the disk exists */
@ -303,9 +337,6 @@ ScsiClassAssignDriveLetter(PCLASS_DEVICE_INFO DeviceInfo)
}
}
DeviceInfo->DeviceNumber = DeviceNumber;
DeviceInfo->DriveNumber = DriveNumber;
return STATUS_SUCCESS;
}
@ -361,7 +392,7 @@ ScsiClassAddDevice(
Status = IoCreateDevice(DriverObject,
sizeof(CLASS_DEVICE_INFO),
NULL,
FILE_DEVICE_DISK,
DriverExtension->InitializationData.DeviceType,
0,
FALSE,
&DeviceObject);
@ -375,6 +406,7 @@ ScsiClassAddDevice(
/* Attach it to the PDO */
DeviceInfo->LowerDevice = IoAttachDeviceToDeviceStack(DeviceObject, PhysicalDeviceObject);
DeviceInfo->DeviceType = DriverExtension->InitializationData.DeviceType;
/* Check that the kernel has already assigned drive letters */
if (KeLoaderBlock == NULL)

27
reactos/drivers/usb/usbstor/scsi.c
View file

@ -1258,7 +1258,7 @@ USBSTOR_SendUnknownRequest(
PPDO_DEVICE_EXTENSION PDODeviceExtension;
PIO_STACK_LOCATION IoStack;
PSCSI_REQUEST_BLOCK Request;
UFI_TEST_UNIT_CMD Cmd;
UFI_UNKNOWN_CMD Cmd;
//
// get current stack location
@ -1283,7 +1283,7 @@ USBSTOR_SendUnknownRequest(
//
// sanity check
//
ASSERT(Request->CdbLength == sizeof(UFI_TEST_UNIT_CMD));
ASSERT(Request->CdbLength <= sizeof(UFI_UNKNOWN_CMD));
//
// initialize test unit cmd
@ -1412,28 +1412,11 @@ USBSTOR_HandleExecuteSCSI(
//
Status = USBSTOR_SendTestUnit(DeviceObject, Irp, RetryCount);
}
#if 0
else if (pCDB->AsByte[0] == SCSIOP_MECHANISM_STATUS)
{
DPRINT1("SCSIOP_MECHANISM_STATUS\n");
//
// Just send it the way it is
//
Status = USBSTOR_SendUnknownRequest(DeviceObject, Irp, RetryCount);
}
#endif
else
{
// unsupported request
DPRINT1("UNIMPLEMENTED Operation Code %x\n", pCDB->AsByte[0]);
Status = STATUS_NOT_SUPPORTED;
Request->SrbStatus = SRB_STATUS_ERROR;
Irp->IoStatus.Status = Status;
Irp->IoStatus.Information = 0;
USBSTOR_QueueTerminateRequest(PDODeviceExtension->LowerDeviceObject, Irp);
IoCompleteRequest(Irp, IO_NO_INCREMENT);
// Unknown request. Simply forward
DPRINT1("Forwarding unknown Operation Code %x\n", pCDB->AsByte[0]);
Status = USBSTOR_SendUnknownRequest(DeviceObject, Irp, RetryCount);
}
return Status;

6
reactos/drivers/usb/usbstor/usbstor.h
View file

@ -317,6 +317,12 @@ C_ASSERT(sizeof(UFI_TEST_UNIT_CMD) == 12);
#define UFI_TEST_UNIT_CMD_LEN (6)
//-------------------------------------------------------------------------------------------------------------------------------------------
typedef struct
{
UCHAR Bytes[16];
}UFI_UNKNOWN_CMD, *PUFI_UNKNOWN_CMD;
typedef struct
{
union