
#pragma once

//
// Define the various device type values.  Note that values used by Microsoft
// Corporation are in the range 0-32767, and 32768-65535 are reserved for use
// by customers.
//

#define DEVICE_TYPE ULONG

#define FILE_DEVICE_BEEP                0x00000001
#define FILE_DEVICE_CD_ROM              0x00000002
#define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
#define FILE_DEVICE_CONTROLLER          0x00000004
#define FILE_DEVICE_DATALINK            0x00000005
#define FILE_DEVICE_DFS                 0x00000006
#define FILE_DEVICE_DISK                0x00000007
#define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
#define FILE_DEVICE_FILE_SYSTEM         0x00000009
#define FILE_DEVICE_INPORT_PORT         0x0000000a
#define FILE_DEVICE_KEYBOARD            0x0000000b
#define FILE_DEVICE_MAILSLOT            0x0000000c
#define FILE_DEVICE_MIDI_IN             0x0000000d
#define FILE_DEVICE_MIDI_OUT            0x0000000e
#define FILE_DEVICE_MOUSE               0x0000000f
#define FILE_DEVICE_MULTI_UNC_PROVIDER  0x00000010
#define FILE_DEVICE_NAMED_PIPE          0x00000011
#define FILE_DEVICE_NETWORK             0x00000012
#define FILE_DEVICE_NETWORK_BROWSER     0x00000013
#define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
#define FILE_DEVICE_NULL                0x00000015
#define FILE_DEVICE_PARALLEL_PORT       0x00000016
#define FILE_DEVICE_PHYSICAL_NETCARD    0x00000017
#define FILE_DEVICE_PRINTER             0x00000018
#define FILE_DEVICE_SCANNER             0x00000019
#define FILE_DEVICE_SERIAL_MOUSE_PORT   0x0000001a
#define FILE_DEVICE_SERIAL_PORT         0x0000001b
#define FILE_DEVICE_SCREEN              0x0000001c
#define FILE_DEVICE_SOUND               0x0000001d
#define FILE_DEVICE_STREAMS             0x0000001e
#define FILE_DEVICE_TAPE                0x0000001f
#define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
#define FILE_DEVICE_TRANSPORT           0x00000021
#define FILE_DEVICE_UNKNOWN             0x00000022
#define FILE_DEVICE_VIDEO               0x00000023
#define FILE_DEVICE_VIRTUAL_DISK        0x00000024
#define FILE_DEVICE_WAVE_IN             0x00000025
#define FILE_DEVICE_WAVE_OUT            0x00000026
#define FILE_DEVICE_8042_PORT           0x00000027
#define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
#define FILE_DEVICE_BATTERY             0x00000029
#define FILE_DEVICE_BUS_EXTENDER        0x0000002a
#define FILE_DEVICE_MODEM               0x0000002b
#define FILE_DEVICE_VDM                 0x0000002c
#define FILE_DEVICE_MASS_STORAGE        0x0000002d
#define FILE_DEVICE_SMB                 0x0000002e
#define FILE_DEVICE_KS                  0x0000002f
#define FILE_DEVICE_CHANGER             0x00000030
#define FILE_DEVICE_SMARTCARD           0x00000031
#define FILE_DEVICE_ACPI                0x00000032
#define FILE_DEVICE_DVD                 0x00000033
#define FILE_DEVICE_FULLSCREEN_VIDEO    0x00000034
#define FILE_DEVICE_DFS_FILE_SYSTEM     0x00000035
#define FILE_DEVICE_DFS_VOLUME          0x00000036
#define FILE_DEVICE_SERENUM             0x00000037
#define FILE_DEVICE_TERMSRV             0x00000038
#define FILE_DEVICE_KSEC                0x00000039
#define FILE_DEVICE_FIPS                0x0000003A
#define FILE_DEVICE_INFINIBAND          0x0000003B
#define FILE_DEVICE_VMBUS               0x0000003E
#define FILE_DEVICE_CRYPT_PROVIDER      0x0000003F
#define FILE_DEVICE_WPD                 0x00000040
#define FILE_DEVICE_BLUETOOTH           0x00000041
#define FILE_DEVICE_MT_COMPOSITE        0x00000042
#define FILE_DEVICE_MT_TRANSPORT        0x00000043
#define FILE_DEVICE_BIOMETRIC           0x00000044
#define FILE_DEVICE_PMI                 0x00000045
#define FILE_DEVICE_EHSTOR              0x00000046
#define FILE_DEVICE_DEVAPI              0x00000047
#define FILE_DEVICE_GPIO                0x00000048
#define FILE_DEVICE_USBEX               0x00000049
#define FILE_DEVICE_CONSOLE             0x00000050
#define FILE_DEVICE_NFP                 0x00000051
#define FILE_DEVICE_SYSENV              0x00000052

//
// Macro definition for defining IOCTL and FSCTL function control codes.  Note
// that function codes 0-2047 are reserved for Microsoft Corporation, and
// 2048-4095 are reserved for customers.
//

#define CTL_CODE( DeviceType, Function, Method, Access ) (                 \
    ((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method) \
)

//
// Macro to extract device type out of the device io control code
//
#define DEVICE_TYPE_FROM_CTL_CODE(ctrlCode)     (((ULONG)(ctrlCode & 0xffff0000)) >> 16)

//
// Macro to extract buffering method out of the device io control code
//
#define METHOD_FROM_CTL_CODE(ctrlCode)          ((ULONG)(ctrlCode & 3))

//
// Define the method codes for how buffers are passed for I/O and FS controls
//

#define METHOD_BUFFERED                 0
#define METHOD_IN_DIRECT                1
#define METHOD_OUT_DIRECT               2
#define METHOD_NEITHER                  3

//
// Define some easier to comprehend aliases:
//   METHOD_DIRECT_TO_HARDWARE (writes, aka METHOD_IN_DIRECT)
//   METHOD_DIRECT_FROM_HARDWARE (reads, aka METHOD_OUT_DIRECT)
//

#define METHOD_DIRECT_TO_HARDWARE       METHOD_IN_DIRECT
#define METHOD_DIRECT_FROM_HARDWARE     METHOD_OUT_DIRECT

//
// Define the access check value for any access
//
//
// The FILE_READ_ACCESS and FILE_WRITE_ACCESS constants are also defined in
// ntioapi.h as FILE_READ_DATA and FILE_WRITE_DATA. The values for these
// constants *MUST* always be in sync.
//
//
// FILE_SPECIAL_ACCESS is checked by the NT I/O system the same as FILE_ANY_ACCESS.
// The file systems, however, may add additional access checks for I/O and FS controls
// that use this value.
//


#define FILE_ANY_ACCESS                 0
#define FILE_SPECIAL_ACCESS    (FILE_ANY_ACCESS)
#define FILE_READ_ACCESS          ( 0x0001 )    // file & pipe
#define FILE_WRITE_ACCESS         ( 0x0002 )    // file & pipe

//
// Byte swap routines.  These are used to convert from little-endian to
// big-endian and vice-versa.
//

#if (defined(_M_IX86) && (_MSC_FULL_VER > 13009037)) || ((defined(_M_AMD64) || defined(_M_IA64)) && (_MSC_FULL_VER > 13009175)) || defined(_M_ARM)
#ifdef __cplusplus
extern "C" {
#endif
unsigned short __cdecl _byteswap_ushort(_In_ unsigned short);
unsigned long  __cdecl _byteswap_ulong (_In_ unsigned long);
unsigned __int64 __cdecl _byteswap_uint64(_In_ unsigned __int64);
#ifdef __cplusplus
}
#endif
#pragma intrinsic(_byteswap_ushort)
#pragma intrinsic(_byteswap_ulong)
#pragma intrinsic(_byteswap_uint64)

#define RtlUshortByteSwap(_x)    _byteswap_ushort((USHORT)(_x))
#define RtlUlongByteSwap(_x)     _byteswap_ulong((_x))
#define RtlUlonglongByteSwap(_x) _byteswap_uint64((_x))
#else

#if (NTDDI_VERSION >= NTDDI_WIN2K)
NTSYSAPI
USHORT
FASTCALL
RtlUshortByteSwap(
    _In_ USHORT Source
    );
#endif

#if (NTDDI_VERSION >= NTDDI_WIN2K)
NTSYSAPI
ULONG
FASTCALL
RtlUlongByteSwap(
    _In_ ULONG Source
    );
#endif

#if (NTDDI_VERSION >= NTDDI_WIN2K)
NTSYSAPI
ULONGLONG
FASTCALL
RtlUlonglongByteSwap(
    _In_ ULONGLONG Source
    );
#endif

#endif
