reactos/drivers/usb/usbstor/usbstor.c

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/*
* PROJECT: ReactOS Universal Serial Bus Bulk Storage Driver
* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
* PURPOSE: USB block storage device driver.
* COPYRIGHT: 2005-2006 James Tabor
* 2011-2012 Michael Martin (michael.martin@reactos.org)
* 2011-2013 Johannes Anderwald (johannes.anderwald@reactos.org)
*/
#include "usbstor.h"
#define NDEBUG
#include <debug.h>
NTSTATUS
NTAPI
USBSTOR_AddDevice(
IN PDRIVER_OBJECT DriverObject,
IN PDEVICE_OBJECT PhysicalDeviceObject)
{
NTSTATUS Status;
PDEVICE_OBJECT DeviceObject;
PFDO_DEVICE_EXTENSION DeviceExtension;
Status = IoCreateDevice(DriverObject, sizeof(FDO_DEVICE_EXTENSION), 0, FILE_DEVICE_BUS_EXTENDER, FILE_AUTOGENERATED_DEVICE_NAME | FILE_DEVICE_SECURE_OPEN, FALSE, &DeviceObject);
if (!NT_SUCCESS(Status))
{
DPRINT1("USBSTOR_AddDevice: Failed to create FDO Status %x\n", Status);
return Status;
}
DeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
ASSERT(DeviceExtension);
RtlZeroMemory(DeviceExtension, sizeof(FDO_DEVICE_EXTENSION));
// initialize device extension
DeviceExtension->Common.IsFDO = TRUE;
DeviceExtension->FunctionalDeviceObject = DeviceObject;
DeviceExtension->PhysicalDeviceObject = PhysicalDeviceObject;
DeviceExtension->LowerDeviceObject = IoAttachDeviceToDeviceStack(DeviceObject, PhysicalDeviceObject);
KeInitializeSpinLock(&DeviceExtension->CommonLock);
IoInitializeTimer(DeviceObject, USBSTOR_TimerRoutine, (PVOID)DeviceExtension);
// did attaching fail
if (!DeviceExtension->LowerDeviceObject)
{
IoDeleteDevice(DeviceObject);
return STATUS_DEVICE_REMOVED;
}
DeviceObject->Flags |= DO_BUFFERED_IO | DO_POWER_PAGABLE;
// device is initialized
DeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
return STATUS_SUCCESS;
}
VOID
NTAPI
USBSTOR_Unload(
PDRIVER_OBJECT DriverObject)
{
// no-op
}
NTSTATUS
NTAPI
USBSTOR_DispatchClose(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
// function always succeeds ;)
DPRINT("USBSTOR_DispatchClose\n");
Irp->IoStatus.Information = 0;
Irp->IoStatus.Status = STATUS_SUCCESS;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
USBSTOR_DispatchDeviceControl(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
NTSTATUS Status;
Status = USBSTOR_HandleDeviceControl(DeviceObject, Irp);
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
NTSTATUS
NTAPI
USBSTOR_DispatchScsi(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
return USBSTOR_HandleInternalDeviceControl(DeviceObject, Irp);
}
NTSTATUS
NTAPI
USBSTOR_DispatchReadWrite(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
// read write ioctl is not supported
Irp->IoStatus.Information = 0;
Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_INVALID_PARAMETER;
}
NTSTATUS
NTAPI
USBSTOR_DispatchPnp(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PUSBSTOR_COMMON_DEVICE_EXTENSION DeviceExtension;
DeviceExtension = (PUSBSTOR_COMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
if (DeviceExtension->IsFDO)
{
return USBSTOR_FdoHandlePnp(DeviceObject, Irp);
}
else
{
return USBSTOR_PdoHandlePnp(DeviceObject, Irp);
}
}
NTSTATUS
NTAPI
USBSTOR_DispatchSystemControl(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
PUSBSTOR_COMMON_DEVICE_EXTENSION DeviceExtension = (PUSBSTOR_COMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
IoSkipCurrentIrpStackLocation(Irp);
if (DeviceExtension->IsFDO)
{
return IoCallDriver(((PFDO_DEVICE_EXTENSION)DeviceExtension)->LowerDeviceObject, Irp);
}
else
{
return IoCallDriver(((PPDO_DEVICE_EXTENSION)DeviceExtension)->LowerDeviceObject, Irp);
}
}
NTSTATUS
NTAPI
USBSTOR_DispatchPower(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PFDO_DEVICE_EXTENSION DeviceExtension;
// get common device extension
DeviceExtension = (PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
if (DeviceExtension->Common.IsFDO)
{
PoStartNextPowerIrp(Irp);
IoSkipCurrentIrpStackLocation(Irp);
return PoCallDriver(DeviceExtension->LowerDeviceObject, Irp);
}
else
{
PoStartNextPowerIrp(Irp);
Irp->IoStatus.Status = STATUS_SUCCESS;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_SUCCESS;
}
}
NTSTATUS
NTAPI
DriverEntry(
IN PDRIVER_OBJECT DriverObject,
IN PUNICODE_STRING RegPath)
{
DPRINT("********* USB Storage *********\n");
DriverObject->DriverUnload = USBSTOR_Unload;
DriverObject->DriverExtension->AddDevice = USBSTOR_AddDevice;
DriverObject->DriverStartIo = USBSTOR_StartIo;
DriverObject->MajorFunction[IRP_MJ_CREATE] = USBSTOR_DispatchClose;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = USBSTOR_DispatchClose;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = USBSTOR_DispatchDeviceControl; // scsi pass through requests
DriverObject->MajorFunction[IRP_MJ_READ] = USBSTOR_DispatchReadWrite;
DriverObject->MajorFunction[IRP_MJ_WRITE] = USBSTOR_DispatchReadWrite;
DriverObject->MajorFunction[IRP_MJ_SCSI] = USBSTOR_DispatchScsi;
DriverObject->MajorFunction[IRP_MJ_PNP] = USBSTOR_DispatchPnp;
DriverObject->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = USBSTOR_DispatchSystemControl;
DriverObject->MajorFunction[IRP_MJ_POWER] = USBSTOR_DispatchPower;
return STATUS_SUCCESS;
}