www.pudn.com > 17551_portion.rar > GENPORT.H

/*++ 
 
Copyright (c) 1990-2000 Microsoft Corporation, All Rights Reserved 
  
Module Name: 
 
    genport.h 
 
Abstract:  Include file for Generic Port I/O Example Driver 
 
 
Author:    Robert R. Howell         January 6, 1993 
 
 
Environment: 
 
    Kernel mode 
 
Revision History: 
 
 Eliyas Yakub     Dec 29, 1998 
 
     Converted to Windows 2000 
      
--*/ 
#include  
#include "gpioctl.h"        // Get IOCTL interface definitions 
 
#if     !defined(__GENPORT_H__) 
#define __GENPORT_H__ 
 
// NT device name 
#define GPD_DEVICE_NAME L"\\Device\\Athlonport0" 
 
// File system device name.   When you execute a CreateFile call to open the 
// device, use "\\.\GpdDev", or, given C's conversion of \\ to \, use 
// "\\\\.\\GpdDev" 
 
#define DOS_DEVICE_NAME L"\\DosDevices\\AthDev" 
 
#define PORTIO_TAG 'TROP' 
 
// driver local data structure specific to each device object 
typedef struct _LOCAL_DEVICE_INFO { 
    PVOID               PortBase;       // base port address 
    ULONG               PortCount;      // Count of I/O addresses used. 
    ULONG               PortMemoryType; // HalTranslateBusAddress MemoryType 
    PDEVICE_OBJECT      DeviceObject;   // The Gpd device object. 
    PDEVICE_OBJECT      NextLowerDriver;     // The top of the stack 
    BOOLEAN             Started; 
    BOOLEAN             Removed; 
    BOOLEAN             PortWasMapped;  // If TRUE, we have to unmap on unload   
    BOOLEAN             Filler[1]; 		//bug fix 
    IO_REMOVE_LOCK      RemoveLock; 
} LOCAL_DEVICE_INFO, *PLOCAL_DEVICE_INFO; 
 
 
#if DBG 
#define DebugPrint(_x_) \ 
               DbgPrint ("PortIo:"); \ 
               DbgPrint _x_; 
 
#define TRAP() DbgBreakPoint() 
 
#else 
#define DebugPrint(_x_) 
#define TRAP() 
#endif 
 
 
/********************* function prototypes ***********************************/ 
// 
 
NTSTATUS     
DriverEntry(        
    IN  PDRIVER_OBJECT DriverObject, 
    IN  PUNICODE_STRING RegistryPath  
    ); 
 
 
NTSTATUS     
GpdDispatch(        
    IN  PDEVICE_OBJECT pDO, 
    IN  PIRP pIrp                     
    ); 
 
NTSTATUS     
GpdIoctlReadPort(   
    IN  PLOCAL_DEVICE_INFO pLDI, 
    IN  PIRP pIrp, 
    IN  PIO_STACK_LOCATION IrpStack, 
    IN  ULONG IoctlCode               
    ); 
 
NTSTATUS     
GpdIoctlWritePort(  
    IN  PLOCAL_DEVICE_INFO pLDI, 
    IN  PIRP pIrp, 
    IN  PIO_STACK_LOCATION IrpStack, 
    IN  ULONG IoctlCode               
    ); 
 
VOID         
GpdUnload(          
    IN  PDRIVER_OBJECT DriverObject  
    ); 
 
 
NTSTATUS 
GpdAddDevice( 
    IN PDRIVER_OBJECT DriverObject, 
    IN PDEVICE_OBJECT PhysicalDeviceObject 
    ); 
 
 
NTSTATUS 
GpdDispatchPnp ( 
    IN PDEVICE_OBJECT DeviceObject, 
    IN PIRP Irp 
    ); 
 
NTSTATUS 
GpdStartDevice ( 
    IN PDEVICE_OBJECT    DeviceObject, 
    IN PIRP             Irp 
    ); 
 
NTSTATUS 
GpdDispatchPower( 
    IN PDEVICE_OBJECT    DeviceObject, 
    IN PIRP              Irp 
    ); 
NTSTATUS  
GpdDispatchSystemControl( 
    IN PDEVICE_OBJECT    DeviceObject, 
    IN PIRP              Irp 
    ); 
PCHAR 
PnPMinorFunctionString ( 
    UCHAR MinorFunction 
); 
 
#endif