ioctrl.c

rtl8139网卡在Windows2000/xp下的驱动程序源代码,无线网卡驱动

#include "driver.h"

typedef struct _PACKET_OID_DATA {
    ULONG           Oid;
    ULONG           Length;
    UCHAR           Data[1];
}PACKET_OID_DATA, *PPACKET_OID_DATA;

#define	IOCTL_PROTOCOL_QUERY_OID	0
#define	IOCTL_PROTOCOL_SET_OID		1

/////////////////////////////////////////////////////////////////////////////
NTSTATUS CompleteIrp( IN PIRP Irp, IN NTSTATUS status, IN ULONG info)
{
	Irp->IoStatus.Status = status;      //设置为一个NTSTATUS的状态码
	Irp->IoStatus.Information = info;   //通常存储传输的字节数
	IoCompleteRequest(Irp,IO_NO_INCREMENT);
	return status;
}

/////////////////////////////////////////////////////////////////////////////
// 处理 创建/打开  IRP_MJ_CREATE 请求
NTSTATUS ROpen( IN PDEVICE_OBJECT DeviceObject,  IN PIRP Irp )
{
    DbgPrint("ROpen:\n");
	return CompleteIrp(Irp,STATUS_SUCCESS,0);   
}

/////////////////////////////////////////////////////////////////////////////
//	处理关闭文件 IRP_MJ_CLOSE 请求   如果设备没有开始允许关闭结束
NTSTATUS RClose( IN PDEVICE_OBJECT DeviceObject,  IN PIRP Irp )
{
    DbgPrint("RClose:\n");
    return CompleteIrp(Irp,STATUS_SUCCESS,0);
}

/////////////////////////////////////////////////////////////////////////////
//	处理 读 IRP_MJ_READ 请求
NTSTATUS RRead( IN PDEVICE_OBJECT DeviceObject,  IN PIRP Irp  )
{
    DbgPrint(("RRead\n"));
    return CompleteIrp(Irp,STATUS_SUCCESS,0);
}

/////////////////////////////////////////////////////////////////////////////
//	处理 写 IRP_MJ_WRITE 请求
NTSTATUS RWrite( IN PDEVICE_OBJECT DeviceObject,  IN PIRP Irp )
{
    DbgPrint(("RWrite\n"));
    return CompleteIrp(Irp,STATUS_SUCCESS,0);
}

///////////////////////////////////////////////////////////////////
//	处理 DeviceIoControl IRP_MJ_DEVICE_CONTROL 请求
NTSTATUS RIoControl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
	NTSTATUS            status = STATUS_SUCCESS;
	PPACKET_OID_DATA	OidData;
	ULONG				retByte, needByte;
    PIO_STACK_LOCATION irpSp = IoGetCurrentIrpStackLocation(Irp);
    ULONG functionCode=irpSp->Parameters.DeviceIoControl.IoControlCode;

    if(functionCode == IOCTL_PROTOCOL_SET_OID)
	{
		OidData = Irp->AssociatedIrp.SystemBuffer;
		status = RSet(g_adapter,
					OidData->Oid,
					OidData->Data,
					OidData->Length,
					&retByte,
					&needByte);
		OidData->Length = retByte;
	}else 
	if(functionCode == IOCTL_PROTOCOL_QUERY_OID)
	{
		OidData = Irp->AssociatedIrp.SystemBuffer;
		status = RQuery(g_adapter,
					OidData->Oid,
					OidData->Data,
					OidData->Length,
					&retByte,
					&needByte );
         OidData->Length = retByte;
	}else
		return CompleteIrp(Irp,STATUS_SUCCESS,0);
	return CompleteIrp(Irp,status,irpSp->Parameters.DeviceIoControl.InputBufferLength);   
}

///////////////////////////////////////////////////////////////////
//	处理 IRP_MJ_CLEANUP 请求
NTSTATUS RCleanup( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp )
{
     DbgPrint(("RCleanup\n"));
     return CompleteIrp(Irp,STATUS_SUCCESS,0);
}

/////////////////////////////////////////////////////////////////////
//  卸载驱动程序例程
VOID RUnload( IN PDRIVER_OBJECT DriverObject)
{
    NDIS_STATUS        status;
    DbgPrint(("Unload Enter\n"));
    IoDeleteSymbolicLink(&win32SymbolicLinkName);           
    if(g_deviceObject)
        IoDeleteDevice(g_deviceObject);
}