#define FILE_DEVICE_KRNLDRVR 0x80ff

#define NT_DEVICE_NAME	    L"\\Device\\IRQGENM0"
#define DOS_DEVICE_NAME     L"\\DosDevices\\IRQGENM"
#define ERROR_MESSAGE	    L"IRQGenM: Error Message Test"

#define IOCTL_IRQGENM_INIT_GEN_DRIVER	CTL_CODE(FILE_DEVICE_KRNLDRVR, 0x801, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_IRQGENM_DETECT_IRQ		CTL_CODE(FILE_DEVICE_KRNLDRVR, 0x802, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_IRQGENM_SEND_EOI			CTL_CODE(FILE_DEVICE_KRNLDRVR, 0x803, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_IRQGENM_DISCONNECT_IRQ	CTL_CODE(FILE_DEVICE_KRNLDRVR, 0x804, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_IRQGENM_ABORT				CTL_CODE(FILE_DEVICE_KRNLDRVR, 0x805, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define WRITE_TO_CLEAR		0
#define READ_TO_CLEAR		1

typedef struct _IRQGENM_DEVICE_EXTENSION {
    PDEVICE_OBJECT DeviceObject;
    PKINTERRUPT	InterruptObject[16];
	BOOLEAN InterruptOccurred[16];
	BOOLEAN InterruptRequested[16];
	BOOLEAN InterruptConnected[16];
	PIRP PendingIrp[16];
	BOOLEAN HasPendingIrp[16];
	ULONG BaseAddress[16];
	UCHAR Operation[16];
	USHORT ClearOffset[16];

} IRQGENM_DEVICE_EXTENSION, *PIRQGENM_DEVICE_EXTENSION;

typedef struct _IRQGENM_INIT_DATA {
	unsigned long BaseAddress;
	unsigned short IRQ;
	short BusType;
	unsigned short BusNumber;
	unsigned short ClearOffset;
	unsigned short Operation;
	unsigned long Reserved1;
	unsigned long Reserved2;
} IRQGENM_INIT_DATA, *PIRQGENM_INIT_DATA;


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

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

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

VOID
IRQGENMUnload(
    IN PDRIVER_OBJECT DriverObject
    );

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

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

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

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

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

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

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