#define FILE_DEVICE_KRNLDRVR 0x80ff

#define NT_DEVICE_NAME	    L"\\Device\\IRQCOS0"
#define DOS_DEVICE_NAME     L"\\DosDevices\\IRQCOS"

#define IOCTL_IRQCOS_INIT_COS_DRIVER	CTL_CODE(FILE_DEVICE_KRNLDRVR, 0x801, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_IRQCOS_GET_DATA			CTL_CODE(FILE_DEVICE_KRNLDRVR, 0x804, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_IRQCOS_ABORT				CTL_CODE(FILE_DEVICE_KRNLDRVR, 0x805, METHOD_BUFFERED, FILE_ANY_ACCESS)

typedef struct _IRQCOS_DEVICE_EXTENSION {
    PDEVICE_OBJECT DeviceObject;
    PKINTERRUPT	InterruptObject;
	BOOLEAN InterruptOccurred;
	BOOLEAN InterruptRequested;
	BOOLEAN InterruptConnected;
	PIRP PendingIrp;
	BOOLEAN HasPendingIrp;
	UCHAR ReturnData[6];
	ULONG BaseAddress;
	UCHAR IRQ;

} IRQCOS_DEVICE_EXTENSION, *PIRQCOS_DEVICE_EXTENSION;


typedef struct _IRQCOS_INIT_DATA {
	unsigned long BaseAddress;
	unsigned short IRQ;
	short BusType;
	unsigned short BusNumber;
} IRQCOS_INIT_DATA, *PIRQCOS_INIT_DATA;

BOOLEAN
IRQCOSInterruptServiceRoutine(
    IN PKINTERRUPT Interrupt,
    IN OUT PVOID Context
    );

VOID
IRQCOSDpcForIsrRoutine(
    IN PKDPC Dpc,
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN PVOID Context
    );

NTSTATUS
IRQCOSOpenClose(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );

VOID
IRQCOSUnload(
    IN PDRIVER_OBJECT DriverObject
    );

NTSTATUS
IRQCOSDeviceControl(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );

VOID
IRQCOSCancelIrp(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );