using System;
using System.Runtime.InteropServices;

namespace phcs_TedKit2 {
  public class API {
    private readonly IntPtr instance;

    public API() {
      instance = phcsApiInt_Alloc();
    }

    public ushort Run([In] ushort comp, [In, Out] Object param) {
      if (comp == Layer.PHTEDKITCOMPID_IO) {
        return phcsApiInt_Run(instance, comp, (IOData) param);
      }

      return phcsApiInt_Run(instance, comp, (BaseData) param);
    }

    public void dispose() {
      phcsApiInt_Destroy(instance);
    }

    /**
     * Returns a string created out of the given byte array. Each entry of 
     * the byte array is interepreted as one ASCII character. The first 
     * value of 0 in the array marks the end of the string.
     * 
     * @param text The byte array being converted.
     * @return The text string.
     */
    public static String toString(byte[] text) {
      int length = 0;
      for (int i = 0; i < text.Length; i++) {
        if (text[i] == 0) {
          break;
        }
        length++;
      }

      return new String(
        Array.ConvertAll<byte, char>(text, Convert.ToChar), 0, length);
    }

    public static class Layer {
      public const ushort PHTEDKITCOMPID_EXTAPI = 0x0200;
      public const ushort PHTEDKITCOMPID_BASEAPI = 0x0300;
      public const ushort PHTEDKITCOMPID_IO = 0x0400;
    }

    public static class Function {
      /** Ext API functions. */
      public const ushort PHTEDKITEXTAPIFKT_PKEPOLLENABLE = 0;
      public const ushort PHTEDKITEXTAPIFKT_PKEPOLLIDE = 1;
      public const ushort PHTEDKITEXTAPIFKT_PKEPOLLMUTE = 2;
      public const ushort PHTEDKITEXTAPIFKT_PKEAUTHENT = 3;
      public const ushort PHTEDKITEXTAPIFKT_PKERSSISINGLE = 4;
      public const ushort PHTEDKITEXTAPIFKT_PKERSSIALL = 5;
      public const ushort PHTEDKITEXTAPIFKT_PKEREADVBAT = 6;
      public const ushort PHTEDKITEXTAPIFKT_PKEREADEEPROM = 7;
      public const ushort PHTEDKITEXTAPIFKT_PKEWRITEEEPROM = 8;
      public const ushort PHTEDKITEXTAPIFKT_HITAG2CRYPTOINIT = 0;
      public const ushort PHTEDKITEXTAPIFKT_HITAG2CRYPTOOPERATION = 1;
      public const ushort PHTEDKITEXTAPIFKT_HITAG3CRYPTOINIT = 0;
      public const ushort PHTEDKITEXTAPIFKT_HITAG3CRYPTOOPERATION = 1;
      public const ushort PHTEDKITEXTAPIFKT_AESCRYPTOINIT = 0;
      public const ushort PHTEDKITEXTAPIFKT_AESCRYPTOOPERATION = 1;

      /** Base API functions. */
      public const ushort PHTEDKITBASEAPIFKT_GETFWVERSION = 0;
      public const ushort PHTEDKITBASEAPIFKT_RESETMAINBOARD = 1;
      public const ushort PHTEDKITBASEAPIFKT_GETDEVICESTATUS = 2;
      public const ushort PHTEDKITBASEAPIFKT_SETLEDSTATES = 3;
      public const ushort PHTEDKITBASEAPIFKT_GETLEDSTATES = 4;
      public const ushort PHTEDKITBASEAPIFKT_GETBUTTONSTATES = 5;
      public const ushort PHTEDKITBASEAPIFKT_EDITGPIOPIN = 6;
      public const ushort PHTEDKITBASEAPIFKT_DELAY = 7;
      public const ushort PHTEDKITBASEAPIFKT_DESELECTXSLOT = 8;
      public const ushort PHTEDKITBASEAPIFKT_GETXSLOTINFO = 9;
      public const ushort PHTEDKITBASEAPIFKT_SETXBOARDCONFIG = 10;
      public const ushort PHTEDKITBASEAPIFKT_GETXBOARDCONFIG = 11;
      public const ushort PHTEDKITBASEAPIFKT_SETTRANSMISSIONPARAMS = 12;
      public const ushort PHTEDKITBASEAPIFKT_GETTRANSMISSIONPARAMS = 13;
      public const ushort PHTEDKITBASEAPIFKT_SETRECEPTIONPARAMS = 14;
      public const ushort PHTEDKITBASEAPIFKT_GETRECEPTIONPARAMS = 15;
      public const ushort PHTEDKITBASEAPIFKT_TRANSMITRECEIVE = 16;
      public const ushort PHTEDKITBASEAPIFKT_ENABLECONTRECEPTION = 17;
      public const ushort PHTEDKITBASEAPIFKT_DISABLECONTRECEPTION = 18;
      public const ushort PHTEDKITBASEAPIFKT_GETCONTRECEIVEDDATA = 19;
      public const ushort PHTEDKITBASEAPIFKT_RESETXBOARD = 20;
      public const ushort PHTEDKITBASEAPIFKT_SETWORDSIZE = 21;
      public const ushort PHTEDKITBASEAPIFKT_GETWORDSIZE = 22;

      /** I/O API functions. */
      public const ushort PHTEDKITIOFKT_GET_DEVICE_NUMBER = 0;
      public const ushort PHTEDKITIOFKT_GET_DEVICE_INFODETAIL = 1;
      public const ushort PHTEDKITIOFKT_OPEN = 2;
      public const ushort PHTEDKITIOFKT_CLOSE = 3;
      public const ushort PHTEDKITIOFKT_EE_UASIZE = 4;
      public const ushort PHTEDKITIOFKT_EE_UAREAD = 5;
      public const ushort PHTEDKITIOFKT_EE_UAWRITE = 6;
      public const ushort PHTEDKITIOFKT_GET_DRIVER_VERSION = 7;
      public const ushort PHTEDKITIOFKT_GET_LIBRARY_VERSION = 8;
      public const ushort PHTEDKITIOFKT_GET_API_VERSION = 9;
    }

    public static class ReturnCode {
      // Generic and function specific message codes 0000-7FFF
      public const ushort PHTEDKITSTATUS_OK = 0x0000;
      public const ushort PHTEDKITSTATUS_MSG_RX_TIMEOUT = 0x0001;
      public const ushort PHTEDKITSTATUS_MSG_RX_ERROR = 0x0002;
      public const ushort PHTEDKITSTATUS_MSG_RX_FRAMESIZE = 0x0003;

      // Generic and function specific error codes 8000-9FFF
      public const ushort PHTEDKITSTATUS_ERR_INVALID_FUNCTION = 0x8001;
      public const ushort PHTEDKITSTATUS_ERR_INVALID_CHECKSUM = 0x8002;
      public const ushort PHTEDKITSTATUS_ERR_MEM_ALLOC_COMMAND_RX = 0x8003;
      public const ushort PHTEDKITSTATUS_ERR_INVALID_PARAM_RANGE = 0x8004;
      public const ushort PHTEDKITSTATUS_ERR_INVALID_PARAM_LENGTH = 0x8005;
      public const ushort PHTEDKITSTATUS_ERR_NO_XBOARD_IN_XSLOT = 0x8006;
      public const ushort PHTEDKITSTATUS_ERR_FUNCTION_NOT_SUPPORTED
        = 0x8007;
      public const ushort PHTEDKITSTATUS_ERR_XBOARD_COMM_FAILURE = 0x8008;
      public const ushort PHTEDKITSTATUS_ERR_MEM_ALLOC_COMMAND_EXEC
        = 0x8009;

      // Transponder specific error codes B000-BFFF
      public const ushort PHTEDKITSTATUS_NO_TRANSPONDER_ANSWER = 0xB001;

      // Windows API USB/IO component codes C000-CFFF
      public const ushort PHTEDKITSTATUS_FT_INVALID_HANDLE = 0xC001;
      public const ushort PHTEDKITSTATUS_FT_DEVICE_NOT_FOUND = 0xC002;
      public const ushort PHTEDKITSTATUS_FT_DEVICE_NOT_OPENED = 0xC003;
      public const ushort PHTEDKITSTATUS_FT_IO_ERROR = 0xC004;
      public const ushort PHTEDKITSTATUS_FT_INSUFFICIENT_RESOURCES
        = 0xC005;
      public const ushort PHTEDKITSTATUS_FT_INVALID_PARAMETER = 0xC006;
      public const ushort PHTEDKITSTATUS_FT_INVALID_BAUD_RATE = 0xC007;
      public const ushort PHTEDKITSTATUS_FT_DEVICE_NOT_OPENED_FOR_ERASE
        = 0xC008;
      public const ushort PHTEDKITSTATUS_FT_DEVICE_NOT_OPENED_FOR_WRITE
        = 0xC009;
      public const ushort PHTEDKITSTATUS_FT_FAILED_TO_WRITE_DEVICE
        = 0xC00A;
      public const ushort PHTEDKITSTATUS_FT_EEPROM_READ_FAILED = 0xC00B;
      public const ushort PHTEDKITSTATUS_FT_EEPROM_WRITE_FAILED = 0xC00C;
      public const ushort PHTEDKITSTATUS_FT_EEPROM_ERASE_FAILED = 0xC00D;
      public const ushort PHTEDKITSTATUS_FT_EEPROM_NOT_PRESENT = 0xC00E;
      public const ushort PHTEDKITSTATUS_FT_EEPROM_NOT_PROGRAMMED = 0xC00F;
      public const ushort PHTEDKITSTATUS_FT_INVALID_ARGS = 0xC010;
      public const ushort PHTEDKITSTATUS_FT_NOT_SUPPORTED = 0xC011;
      public const ushort PHTEDKITSTATUS_FT_OTHER_ERROR = 0xC012;
      public const ushort PHTEDKITSTATUS_IO_READTIMEOUT = 0xC100;
      public const ushort PHTEDKITSTATUS_IO_INVALID_FUNCTION = 0xC101;
      public const ushort PHTEDKITSTATUS_IO_DOWNLOADFILE_OPEN_ERROR = 0xC102;
      public const ushort PHTEDKITSTATUS_IO_DOWNLOADFILE_DOWNLOAD_ERROR = 0xC103;

      // Windows API Base component codes E000-EFFF
      public const ushort PHTEDKITSTATUS_BASEAPI_INVALID_FUNCTION = 0xE000;
      public const ushort PHTEDKITSTATUS_BASEAPI_RX_FRAMESIZE_INVALID
        = 0xE001;
      public const ushort PHTEDKITSTATUS_BASEAPI_RX_CHECKSUM_INVALID
        = 0xE002;
      public const ushort PHTEDKITSTATUS_BASEAPI_INVALID_BOUNDARY = 0xE003;

      // Windows API Ext component codes F000-FFFE
      public const ushort PHTEDKITSTATUS_EXTAPI_INVALID_DEVICE = 0xF000;
      public const ushort PHTEDKITSTATUS_EXTAPI_INVALID_FUNCTION = 0xF001;
      public const ushort PHTEDKITSTATUS_EXTAPI_INVALID_TRANSPONDER_CMD
        = 0xF002;
      public const ushort PHTEDKITSTATUS_EXTAPI_INVALID_TRANSPONDER_CHK
        = 0xF003;
      public const ushort PHTEDKITSTATUS_EXTAPI_INVALID_RX_LENGTH = 0xF004;
      public const ushort PHTEDKITSTATUS_EXTAPI_INVALID_STATE = 0xF005;
      public const ushort PHTEDKITSTATUS_EXTAPI_INVALID_COMMAND_USE = 0xF006;
      public const ushort PHTEDKITSTATUS_EXTAPI_INVALID_ANSWER = 0xF007;

      public const ushort PHTEDKITSTATUS_WRONG_API_LAYER = 0xFFF0;
    }

    public static class XBoardType {
      public const ushort PHTEDKITXBOARD_SELFTESTING = 0x00;
      public const ushort PHTEDKITXBOARD_EXPERIMENT = 0x01;
      public const ushort PHTEDKITXBOARD_UAA3220 = 0x02;
      public const ushort PHTEDKITXBOARD_CRYPTO = 0x1C;
      public const ushort PHTEDKITXBOARD_LOPSTER = 0x1D;
      public const ushort PHTEDKITXBOARD_ABIC1 = 0x1F;
      public const ushort PHTEDKITXBOARD_ABIC2 = 0x1E;
      public const ushort PHTEDKITXBOARD_NONE = 0xFF;
    }

    public static class XBoardFeature {
      public const ushort PHTEDKITXBOARD_FEAT_LF = 1;
      public const ushort PHTEDKITXBOARD_FEAT_UHF = 2;
      public const ushort PHTEDKITXBOARD_FEAT_SPI = 4;
      public const ushort PHTEDKITXBOARD_FEAT_I2C = 8;
      public const ushort PHTEDKITXBOARD_FEAT_GPIO = 16;
      public const ushort PHTEDKITXBOARD_FEAT_LIN = 32;
      public const ushort PHTEDKITXBOARD_FEAT_INT = 64;
      public const ushort PHTEDKITXBOARD_FEAT_AIN = 128;
      public const ushort PHTEDKITXBOARD_FEAT_AOUT = 256;
      public const ushort PHTEDKITXBOARD_FEAT_TX = 512;
      public const ushort PHTEDKITXBOARD_FEAT_RX = 1024;
      public const ushort PHTEDKITXBOARD_FEAT_CONFIGTXRX = 2048;
      public const ushort PHTEDKITXBOARD_FEAT_DISABLED = 32768;
    }

    public static class XBoardXSlot {
      public const ushort PHTEDKITXBOARD_XSLOT_0 = 0;
      public const ushort PHTEDKITXBOARD_XSLOT_1 = 1;
      public const ushort PHTEDKITXBOARD_XSLOT_2 = 2;
      public const ushort PHTEDKITXBOARD_XSLOT_3 = 3;
    }

    public static class BufferSize {
      public const ushort PHTEDKITTRACE_BUFSIZE = 0x1000;
      public const ushort PHTEDKITBASE_BUFSIZE = 0x0200;
      public const ushort PHTEDKITIO_BUFSIZE = 0x0040;
    }

    public const ushort PHTEDKITIOFKT_NORMAL_OPERATION = 0;
    public const ushort PHTEDKITIOFKT_FIRMWARE_UPDATE = 1;

    public const uint PHTEDKITUSB_VIDPID = 0x0403BA18;

    public static class BaseStation {
      public const ushort PHTEDKITEXTAPIDEVICE_ABIC1 = 0;
      public const ushort PHTEDKITEXTAPIDEVICE_ABIC2 = 1;
      public const ushort PHTEDKITEXTAPIDEVICE_LOPSTER = 2;
    }

    public static class Transponder {
      public const ushort PHTEDKITEXTAPIDEVICE_HITAG2 = 3;
      public const ushort PHTEDKITEXTAPIDEVICE_HITAG2EXT = 4;
      public const ushort PHTEDKITEXTAPIDEVICE_HITAGPRO = 5;
      public const ushort PHTEDKITEXTAPIDEVICE_HITAG3 = 9;
      public const ushort PHTEDKITEXTAPIDEVICE_HITAGAES = 11;
      public const ushort PHTEDKITEXTAPIDEVICE_HITAG2PLUSEE = 12;
    }

    public static class VirtualDevice {
      public const ushort PHTEDKITEXTAPIDEVICE_PKE = 6;
      public const ushort PHTEDKITEXTAPIDEVICE_HITAG2CRYPTO = 7;
      public const ushort PHTEDKITEXTAPIDEVICE_AESCRYPTO = 8;
      public const ushort PHTEDKITEXTAPIDEVICE_HITAG3CRYPTO = 10;
    }

    public static class BodyDataEncoding {
      public const ushort PHTEDKITCODING_MANCHESTER = 0;
      public const ushort PHTEDKITCODING_CDP = 1;
      public const ushort PHTEDKITCODING_BPLM = 2;
      public const ushort PHTEDKITCODING_FREEWAVE = 3;
      public const ushort PHTEDKITCODING_ANALOG = 4;
      public const ushort PHTEDKITCODING_PLAIN = 5;
      public const ushort PHTEDKITCODING_GPIO = 6;
    }

    public static class State {
      public const byte PHTEDKITHITAG2STATE_WAIT = 0;
      public const byte PHTEDKITHITAG2STATE_AUTHORIZED = 1;
      public const byte PHTEDKITHITAG2STATE_XMA = 2;
      public const byte PHTEDKITHITAG2STATE_XMACFG = 3;
      public const byte PHTEDKITHITAG2STATE_TEST = 4;
      public const byte PHTEDKITHITAG2STATE_USER = 5;
      public const byte PHTEDKITHITAG2STATE_HALT = 6;
      public const byte PHTEDKITHITAGPROSTATE_WAIT = 0;
      public const byte PHTEDKITHITAGPROSTATE_AUTHENT = 1;
      public const byte PHTEDKITHITAGPROSTATE_CIPHER = 2;
      public const byte PHTEDKITHITAGPROSTATE_PLAIN = 3;
      public const byte PHTEDKITHITAGPROSTATE_CFG = 4;
      public const byte PHTEDKITHITAGPROSTATE_TEST = 5;
      public const byte PHTEDKITHITAGPROSTATE_USER = 6;
    }

    public static class Command {
      /** HITAG2 (and derivatives) commands. */
      public const byte PHTEDKITHITAG2CMD_STARTAUTH = 0x18;
      public const byte PHTEDKITHITAG2CMD_READPAGE = 0x18;
      public const byte PHTEDKITHITAG2CMD_READPAGEINV = 0x08;
      public const byte PHTEDKITHITAG2CMD_WRITEPAGE = 0x10;
      public const byte PHTEDKITHITAG2CMD_HALT = 0x01;
      public const byte PHTEDKITHITAG2CMD_GETIDE64 = 0xd6;

      /** HITAG2-Extended (and derivatives) commands. */
      public const byte PHTEDKITHITAG2CMD_XMAWAIT = 0x00;
      public const byte PHTEDKITHITAG2CMD_XMACFG = 0x14;
      public const byte PHTEDKITHITAG2CMD_TEST = 0x0F;
      public const byte PHTEDKITHITAG2CMD_XMA = 0x00;
      public const byte PHTEDKITHITAG2CMD_SELBLOCK = 0x08;
      public const byte PHTEDKITHITAG2CMD_READCFG = 0x08;
      public const byte PHTEDKITHITAG2CMD_WRITECFGM = 0x10;
      public const byte PHTEDKITHITAG2CMD_WRITECFGS = 0x18;
      public const byte PHTEDKITHITAG2CMD_THASHINIT = 0x00;
      public const byte PHTEDKITHITAG2CMD_THASHGET = 0x01;
      public const byte PHTEDKITHITAG2CMD_TWRITEPAGE = 0x10;
      public const byte PHTEDKITHITAG2CMD_TREADPAGE = 0x18;
      public const byte PHTEDKITHITAG2CMD_TGETCFG = 0x03;
      public const byte PHTEDKITHITAG2CMD_REFRESH = 0x55;
      public const byte PHTEDKITHITAG2CMD_SOFTRESET = 0xAA;

      /** HITAG2+ (and derivatives) commands. */
      public const byte PHTEDKITHITAG2CMD_BATTTEST = 0x11;
      public const byte PHTEDKITHITAG2CMD_BUTTONTEST = 0x12;
      public const byte PHTEDKITHITAG2CMD_SETXON = 0x13;
      public const byte PHTEDKITHITAG2CMD_SETDOUT = 0x14;
      public const byte PHTEDKITHITAG2CMD_SETLED = 0x15;
      public const byte PHTEDKITHITAG2CMD_RESETALL = 0x16;

      /** HITAG2+EE commands. */
      public const byte PHTEDKITHITAG2CMD_XMAPLUS = 0x07;
      public const byte PHTEDKITHITAG2CMD_INCBLKPTR = 0x04;
      public const byte PHTEDKITHITAG2CMD_DECBLKPTR = 0x05;
      public const byte PHTEDKITHITAG2CMD_INITBLKPTR = 0x06;

      /** HITAG3 commands. */
      public const byte PHTEDKITHITAG3CMD_STARTAUTH = 0x1C;
      public const byte PHTEDKITHITAG3CMD_XMAWAIT = 0x08;
      public const byte PHTEDKITHITAG3CMD_XMACFG = 0x1D;
      public const byte PHTEDKITHITAG3CMD_USER = 0x10;
      public const byte PHTEDKITHITAG3CMD_TEST = 0x1F;
      public const byte PHTEDKITHITAG3CMD_GETIDE64 = 0xd0;

      /** HITAG-AES commands. */
      public const byte PHTEDKITHITAGAESCMD_STARTAUTH250 = 0x1E;
      public const byte PHTEDKITHITAGAESCMD_STARTAUTH500 = 0x01;
      public const byte PHTEDKITHITAGAESCMD_GETIDE64 = 0xd1;
      public const byte PHTEDKITHITAGAESCMD_TAESINIT = 0xd4;
      public const byte PHTEDKITHITAGAESCMD_TAESGET = 0xd5;

      /** HITAG-Pro (and derivatives) commands. */
      public const byte PHTEDKITHITAGPROCMD_GETIDE = 0x03;
      public const byte PHTEDKITHITAGPROCMD_AUTHENT = 0xC0;
      public const byte PHTEDKITHITAGPROCMD_PLAIN = 0x00;
      public const byte PHTEDKITHITAGPROCMD_CFG = 0xFF;
      public const byte PHTEDKITHITAGPROCMD_USER = 0x40;
      public const byte PHTEDKITHITAGPROCMD_TEST = 0xAA;
      public const byte PHTEDKITHITAGPROCMD_SEQINC = 0xCC;
      public const byte PHTEDKITHITAGPROCMD_SELBLOCK = 0xD8;
      public const byte PHTEDKITHITAGPROCMD_READPAGE = 0x00;
      public const byte PHTEDKITHITAGPROCMD_WRITEPAGE = 0x80;
      public const byte PHTEDKITHITAGPROCMD_READBYTE = 0x20;
      public const byte PHTEDKITHITAGPROCMD_WRITEBYTE = 0xA0;
      public const byte PHTEDKITHITAGPROCMD_TAESINIT = 0x00;
      public const byte PHTEDKITHITAGPROCMD_TAESGET = 0x9F;
      public const byte PHTEDKITHITAGPROCMD_TREADBYTE = 0x3C;
      public const byte PHTEDKITHITAGPROCMD_TWRITEBYTE = 0xBC;
      public const byte PHTEDKITHITAGPROCMD_THASHINIT = 0x60;
      public const byte PHTEDKITHITAGPROCMD_THASHGET = 0xFF;
      public const byte PHTEDKITHITAGPROCMD_TGETCFG = 0x40;
      public const byte PHTEDKITHITAGPROCMD_REFRESH = 0x55;
      public const byte PHTEDKITHITAGPROCMD_SOFTRESET = 0xAB;

      /** HITAG-Pro 2 commands. */
      public const byte PHTEDKITHITAGPRO2CMD_WRITEDIST = 0xE0;
      public const byte PHTEDKITHITAGPRO2CMD_READDISTN = 0x60;
      public const byte PHTEDKITHITAGPRO2CMD_READMPAGE = 0x50;
      public const byte PHTEDKITHITAGPRO2CMD_SEQINC32 = 0xd2;
      public const byte PHTEDKITHITAGPRO2CMD_GETIDE64 = 0xd3;
    }

    [StructLayout(LayoutKind.Sequential)]
    public sealed class IOData {
      public ushort Function = 0;
      public ushort StatusCode = 0;
      public ushort OpenMode = 0;
      public ushort Port = 0;
      public uint DeviceNum = 0;
      public uint Flags = 0;
      public uint Type = 0;
      public uint ID = 0;
      public uint LocId = 0;
      public uint EESize = 0;
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITIO_BUFSIZE)]
      public byte[] SerialNumber = new byte[BufferSize.PHTEDKITIO_BUFSIZE];
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITIO_BUFSIZE)]
      public byte[] Description = new byte[BufferSize.PHTEDKITIO_BUFSIZE];
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITIO_BUFSIZE)]
      public byte[] EEData = new byte[BufferSize.PHTEDKITIO_BUFSIZE];
      [MarshalAs(UnmanagedType.LPStr)]
      public string FileInfo = "";

      public void reset() {
        Function = 0;
        StatusCode = 0;
        OpenMode = 0;
        Port = 0;
        DeviceNum = 0;
        Flags = 0;
        Type = 0;
        ID = 0;
        LocId = 0;
        EESize = 0;
        Array.Clear(SerialNumber, 0, API.BufferSize.PHTEDKITIO_BUFSIZE);
        Array.Clear(EEData, 0, API.BufferSize.PHTEDKITIO_BUFSIZE);
        Array.Clear(Description, 0, API.BufferSize.PHTEDKITIO_BUFSIZE);
        FileInfo = "";
      }
    }

    [StructLayout(LayoutKind.Sequential)]
    public sealed class BaseData {
      public ushort Device = 0;
      public byte State = 0;
      public byte Command = 0;
      public ushort Function = 0;
      public ushort TxData1 = 0;
      public ushort TxData2 = 0;
      public ushort TxData3 = 0;
      public ushort TxData4 = 0;
      public ushort TxData5 = 0;
      public ushort TxData6 = 0;
      public ushort TxData7 = 0;
      public ushort TxData8 = 0;
      public ushort StatusCode = 0;
      public ushort RxData1 = 0;
      public ushort RxData2 = 0;
      public ushort RxData3 = 0;
      public ushort RxData4 = 0;
      public ushort RxData5 = 0;
      public ushort RxData6 = 0;
      public ushort RxData7 = 0;
      public ushort RxData8 = 0;
      public uint TxTime1 = 0;
      public uint TxTime2 = 0;
      public uint TxTime3 = 0;
      public uint RxTime1 = 0;
      public uint RxTime2 = 0;
      public uint RxTime3 = 0;
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITBASE_BUFSIZE)]
      public byte[] TxBuf1 = new byte[BufferSize.PHTEDKITBASE_BUFSIZE];
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITBASE_BUFSIZE)]
      public byte[] TxBuf2 = new byte[BufferSize.PHTEDKITBASE_BUFSIZE];
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITBASE_BUFSIZE)]
      public byte[] TxBuf3 = new byte[BufferSize.PHTEDKITBASE_BUFSIZE];
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITBASE_BUFSIZE)]
      public byte[] RxBuf1 = new byte[BufferSize.PHTEDKITBASE_BUFSIZE];
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITBASE_BUFSIZE)]
      public byte[] RxBuf2 = new byte[BufferSize.PHTEDKITBASE_BUFSIZE];
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITBASE_BUFSIZE)]
      public byte[] RxBuf3 = new byte[BufferSize.PHTEDKITBASE_BUFSIZE];
      [MarshalAs(UnmanagedType.ByValArray,
        SizeConst = BufferSize.PHTEDKITTRACE_BUFSIZE)]
      public byte[] TraceBuf = new byte[BufferSize.PHTEDKITTRACE_BUFSIZE];

      public void reset() {
        Device = 0;
        Function = 0;
        StatusCode = 0;
        State = 0;
        Command = 0;
        TxData1 = 0;
        TxData2 = 0;
        TxData3 = 0;
        TxData4 = 0;
        TxData5 = 0;
        TxData6 = 0;
        TxData7 = 0;
        TxData8 = 0;
        RxData1 = 0;
        RxData2 = 0;
        RxData3 = 0;
        RxData4 = 0;
        RxData5 = 0;
        RxData6 = 0;
        RxData7 = 0;
        RxData8 = 0;
        TxTime1 = 0;
        TxTime2 = 0;
        TxTime3 = 0;
        RxTime1 = 0;
        RxTime2 = 0;
        RxTime3 = 0;
        Array.Clear(TxBuf1, 0, API.BufferSize.PHTEDKITBASE_BUFSIZE);
        Array.Clear(TxBuf2, 0, API.BufferSize.PHTEDKITBASE_BUFSIZE);
        Array.Clear(TxBuf3, 0, API.BufferSize.PHTEDKITBASE_BUFSIZE);
        Array.Clear(RxBuf1, 0, API.BufferSize.PHTEDKITBASE_BUFSIZE);
        Array.Clear(RxBuf2, 0, API.BufferSize.PHTEDKITBASE_BUFSIZE);
        Array.Clear(RxBuf3, 0, API.BufferSize.PHTEDKITBASE_BUFSIZE);
        Array.Clear(TraceBuf, 0, API.BufferSize.PHTEDKITTRACE_BUFSIZE);
      }

    }

#if DEBUG
    [DllImport("tk2d")]
#else
    [DllImport("tk2")]
#endif
    private unsafe static extern IntPtr phcsApiInt_Alloc();

#if DEBUG
    [DllImport("tk2d")]
#else
    [DllImport("tk2")]
#endif
    private unsafe static extern ushort phcsApiInt_Run(
      [In] IntPtr inst, [In] ushort comp, [In, Out] IOData param);

#if DEBUG
    [DllImport("tk2d")]
#else
    [DllImport("tk2")]
#endif
    private unsafe static extern ushort phcsApiInt_Run(
      [In] IntPtr inst, [In] ushort comp, [In, Out] BaseData param);

#if DEBUG
    [DllImport("tk2d")]
#else
    [DllImport("tk2")]
#endif
    private unsafe static extern void phcsApiInt_Destroy(IntPtr instance);

  }
}