//#ifdef DRIVER和ENDIF的部分是開(kāi)發(fā)設(shè)備驅(qū)動(dòng)程序所專(zhuān)用的，他們不能在Win32應(yīng)用程序中使用，所以加上了該屏蔽。 
//也就是說(shuō)，該頭文件也可在Win32應(yīng)用程序中直接使用，而且也的確使用了。當(dāng)然，也可以在Win32應(yīng)用程序中把不
//需要的部分直接去除。

#ifndef USBDRIVER_H
#define USBDRIVER_H
#endif

#ifdef DRIVER
#include "wdm.h"
#include "usbdi.h"
#include "usbdlib.h"
#include <resource.h>
#endif

#ifndef _BYTE_DEFINED
#define _BYTE_DEFINED
typedef unsigned char BYTE;
#endif // !_BYTE_DEFINED

#ifndef _WORD_DEFINED
#define _WORD_DEFINED
typedef unsigned short WORD;
#endif // !_WORD_DEFINED

typedef struct _VENDOR_REQUEST_IN
{
    BYTE    bRequest;
    WORD    wValue;
    WORD    wIndex;
    WORD    wLength;
    BYTE    direction;
    BYTE    bData;
} VENDOR_REQUEST_IN, *PVENDOR_REQUEST_IN;

typedef struct _GET_STRING_DESCRIPTOR_IN
{
   UCHAR    Index;
   USHORT   LanguageId;
} GET_STRING_DESCRIPTOR_IN, *PGET_STRING_DESCRIPTOR_IN;

typedef struct _BULK_TRANSFER_CONTROL
{
   ULONG pipeNum;
} BULK_TRANSFER_CONTROL, *PBULK_TRANSFER_CONTROL;

#ifdef DRIVER

// Device extension structure
typedef struct tagDEVICE_EXTENSION
{
   PDEVICE_OBJECT PhysicalDeviceObject;   // physical device object   
   PDEVICE_OBJECT LowerDeviceObject;		// next lower driver in same stack
   BOOLEAN Stop;     // Indicates that we have recieved a STOP message

   // configuration handle for the configuration the
   // device is currently in
   USBD_CONFIGURATION_HANDLE ConfigurationHandle;

   // pointer to the USB device descriptor for this device
   PUSB_DEVICE_DESCRIPTOR DeviceDescriptor;

   // we support up to one interface
   PUSBD_INTERFACE_INFORMATION Interface;

   // the number of device handles currently open to the device object.
   // Gets incremented by Create and decremented by Close
   //打開(kāi)的設(shè)備句柄。與用戶(hù)應(yīng)用程序相對(duì)應(yīng)的。即createfile和closehandle。
   ULONG OpenHandles;

   // Name buffer for our named Functional device object link
   //設(shè)備連接名，注意它的長(zhǎng)度為64。不要太小了，如32，不好。
   WCHAR DeviceLinkName[64];

   // use counter for the device.  Gets incremented when the driver receives
   // a request and gets decremented when a request s completed.
   //記錄有多少個(gè)I/O請(qǐng)求正在處理中。
   LONG Usages;

   // this event gets set when it is ok to remove the device
   KEVENT evRemove;

   // TRUE if we're trying to remove this device
   BOOLEAN Removing;
   
} DEVICE_EXTENSION, *PDEVICE_EXTENSION;


NTSTATUS TestAddDevice(IN PDRIVER_OBJECT DriverObject,
                       IN PDEVICE_OBJECT PhysicalDeviceObject);
VOID TestDrvUnload(IN PDRIVER_OBJECT DriverObject);
NTSTATUS TestPnpIrp(IN PDEVICE_OBJECT fdo, IN PIRP Irp);
NTSTATUS TestPowerIrp(IN PDEVICE_OBJECT fdo,IN PIRP Irp);
NTSTATUS TestCreate(IN PDEVICE_OBJECT fdo, IN PIRP Irp);
NTSTATUS TestClose(IN PDEVICE_OBJECT fdo, IN PIRP Irp);
NTSTATUS TestIOCTL(IN PDEVICE_OBJECT fdo,IN PIRP Irp);
BOOLEAN LockDevice(IN PDEVICE_OBJECT fdo);
void UnlockDevice(PDEVICE_OBJECT fdo);
NTSTATUS CompleteRequest(IN PIRP Irp,IN NTSTATUS status,IN ULONG info);
NTSTATUS UsbCallUSBDI(IN PDEVICE_OBJECT fdo,IN PURB Urb);

#endif      //DRIVER section


#define Ezusb_IOCTL_INDEX  0x0800

//FILE_DEVICE_UNKNOWN在adddevice時(shí)標(biāo)志的。

#define IOCTL_Ezusb_GET_DEVICE_DESCRIPTOR CTL_CODE(FILE_DEVICE_UNKNOWN,  \
                                                   Ezusb_IOCTL_INDEX+0,\
                                                   METHOD_BUFFERED,  \
                                                   FILE_ANY_ACCESS)

#define IOCTL_Ezusb_GET_CONFIGURATION_DESCRIPTOR CTL_CODE(FILE_DEVICE_UNKNOWN,  \
                                                   Ezusb_IOCTL_INDEX+1,\
                                                   METHOD_BUFFERED,  \
                                                   FILE_ANY_ACCESS)

#define IOCTL_Ezusb_GET_STRING_DESCRIPTOR CTL_CODE(FILE_DEVICE_UNKNOWN,  \
                                                   Ezusb_IOCTL_INDEX+2,\
                                                   METHOD_BUFFERED,  \
                                                   FILE_ANY_ACCESS)

#define IOCTL_EZUSB_BULK_WRITE            CTL_CODE(FILE_DEVICE_UNKNOWN,  \
                                                   Ezusb_IOCTL_INDEX+3,\
                                                   METHOD_IN_DIRECT,  \
                                                   FILE_ANY_ACCESS)

#define IOCTL_EZUSB_BULK_READ             CTL_CODE(FILE_DEVICE_UNKNOWN,  \
                                                   Ezusb_IOCTL_INDEX+4,\
                                                   METHOD_OUT_DIRECT,  \
                                                   FILE_ANY_ACCESS)

#define IOCTL_EZUSB_GET_CURRENT_FRAME_NUMBER  CTL_CODE(FILE_DEVICE_UNKNOWN,  \
                                                   Ezusb_IOCTL_INDEX+5,\
                                                   METHOD_BUFFERED,  \
                                                   FILE_ANY_ACCESS)