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Annotation of q_a/samples/ddk/portio/genport.h, revision 1.1

1.1     ! root        1: // genport.h    Include file for Generic Port I/O Example Driver
        !             2: //
        !             3: // Robert R. Howell         January 6, 1993
        !             4: // Robert B. Nelson (MS)    January 12, 1993
        !             5: //      Modified comments prior to posting to Compuserve
        !             6: //      Changed Wkd* to Gpd*
        !             7: // Robert B. Nelson (MS)    March 1, 1993
        !             8: //      Cleanup and bug fixes for Beta 2
        !             9: //
        !            10: #include <ntddk.h>
        !            11: #include <string.h>
        !            12: #include <devioctl.h>
        !            13: #include "gpioctl.h"        // Get IOCTL interface definitions
        !            14: 
        !            15: /* Default base port, and # of ports */
        !            16: #define BASE_PORT       0x300
        !            17: #define NUMBER_PORTS        4
        !            18: 
        !            19: // NT device name
        !            20: #define GPD_DEVICE_NAME L"\\Device\\Gpd0"
        !            21: 
        !            22: // File system device name.   When you execute a CreateFile call to open the
        !            23: // device, use "\\.\GpdDev", or, given C's conversion of \\ to \, use
        !            24: // "\\\\.\\GpdDev"
        !            25: 
        !            26: #define DOS_DEVICE_NAME L"\\DosDevices\\GpdDev"
        !            27: 
        !            28: 
        !            29: // driver local data structure specific to each device object
        !            30: typedef struct _LOCAL_DEVICE_INFO {
        !            31:     ULONG               DeviceType;     // Our private Device Type
        !            32:     BOOLEAN             PortWasMapped;  // If TRUE, we have to unmap on unload
        !            33:     PVOID               PortBase;       // base port address
        !            34:     ULONG               PortCount;      // Count of I/O addresses used.
        !            35:     ULONG               PortMemoryType; // HalTranslateBusAddress MemoryType
        !            36:     PDEVICE_OBJECT      DeviceObject;   // The Gpd device object.
        !            37: } LOCAL_DEVICE_INFO, *PLOCAL_DEVICE_INFO;
        !            38: 
        !            39: /********************* function prototypes ***********************************/
        !            40: //
        !            41: 
        !            42: NTSTATUS    DriverEntry(       IN  PDRIVER_OBJECT DriverObject,
        !            43:                                IN  PUNICODE_STRING RegistryPath );
        !            44: 
        !            45: NTSTATUS    GpdCreateDevice(   IN  PWSTR szPrototypeName,
        !            46:                                IN  DEVICE_TYPE DeviceType,
        !            47:                                IN  PDRIVER_OBJECT DriverObject,
        !            48:                                OUT PDEVICE_OBJECT *ppDevObj     );
        !            49: 
        !            50: NTSTATUS    GpdDispatch(       IN  PDEVICE_OBJECT pDO,
        !            51:                                IN  PIRP pIrp                    );
        !            52: 
        !            53: NTSTATUS    GpdIoctlReadPort(  IN  PLOCAL_DEVICE_INFO pLDI,
        !            54:                                IN  PIRP pIrp,
        !            55:                                IN  PIO_STACK_LOCATION IrpStack,
        !            56:                                IN  ULONG IoctlCode              );
        !            57: 
        !            58: NTSTATUS    GpdIoctlWritePort( IN  PLOCAL_DEVICE_INFO pLDI,
        !            59:                                IN  PIRP pIrp,
        !            60:                                IN  PIO_STACK_LOCATION IrpStack,
        !            61:                                IN  ULONG IoctlCode              );
        !            62: 
        !            63: VOID        GpdUnload(         IN  PDRIVER_OBJECT DriverObject );
        !            64: 

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