driver.h

Programming the Microsoft Windows driver model.2nd 随书光盘。内有很多作者送的实用工具和随书源码。WDM编程

// Declarations for evwait driver
// Copyright (C) 1999 by Walter Oney
// All rights reserved

#ifndef DRIVER_H
#define DRIVER_H
#include <generic.h>

#define DRIVERNAME "EVWAIT"				// for use in messages
#define LDRIVERNAME L"EVWAIT"			// for use in UNICODE strings

///////////////////////////////////////////////////////////////////////////////
// Device extension structure

typedef struct tagDEVICE_EXTENSION {
	PDEVICE_OBJECT DeviceObject;			// device object this extension belongs to
	PDEVICE_OBJECT LowerDeviceObject;		// next lower driver in same stack
	PDEVICE_OBJECT Pdo;						// the PDO
	IO_REMOVE_LOCK RemoveLock;				// removal control locking structure
	UNICODE_STRING devname;					// name of device
	PGENERIC_EXTENSION pgx;					// device extension for GENERIC.SYS
	LONG handles;							// # open handles

	// Infrastructure for sharing an event with user-mode. Putting the event pointer
	// in the device extension is only correct for this driver because we only
	// allow one handle to be open at a time. Even so, we need to guard against
	// an application issuing several conflicing overlapped operations simultaneously,
	// and we use a spin lock for that purpose.

	PKEVENT event;							// registered event
	KSPIN_LOCK eventlock;					// lock for accessing event pointer
	} DEVICE_EXTENSION, *PDEVICE_EXTENSION;

///////////////////////////////////////////////////////////////////////////////
// Global functions

VOID RemoveDevice(IN PDEVICE_OBJECT fdo);
NTSTATUS CompleteRequest(IN PIRP Irp, IN NTSTATUS status, IN ULONG_PTR info);
NTSTATUS StartDevice(PDEVICE_OBJECT fdo, PCM_PARTIAL_RESOURCE_LIST raw, PCM_PARTIAL_RESOURCE_LIST translated);
VOID StopDevice(PDEVICE_OBJECT fdo, BOOLEAN oktouch = FALSE);

// I/O request handlers

NTSTATUS DispatchCreate(PDEVICE_OBJECT fdo, PIRP Irp);
NTSTATUS DispatchClose(PDEVICE_OBJECT fdo, PIRP Irp);
NTSTATUS DispatchControl(PDEVICE_OBJECT fdo, PIRP Irp);
NTSTATUS DispatchPower(PDEVICE_OBJECT fdo, PIRP Irp);
NTSTATUS DispatchWmi(PDEVICE_OBJECT fdo, PIRP Irp);
NTSTATUS DispatchPnp(PDEVICE_OBJECT fdo, PIRP Irp);

extern BOOLEAN win98;
extern UNICODE_STRING servkey;

#endif // DRIVER_H