using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;

namespace LFP_Manager.Function
{
    // 1. The type of the ZLGCAN series interface card information.
    public struct VCI_BOARD_INFO
    {
        public UInt16 hw_Version;
        public UInt16 fw_Version;
        public UInt16 dr_Version;
        public UInt16 in_Version;
        public UInt16 irq_Num;
        public byte can_Num;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
        public byte[] str_Serial_Num;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 40)]
        public byte[] str_hw_Type;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
        public byte[] Reserved;
    }

    // 2. Define the data type of the CAN message frame.
    unsafe public struct VCI_CAN_OBJ  //Use unsafe code
    {
        public uint ID;
        public uint TimeStamp;
        public byte TimeFlag;
        public byte SendType;
        public byte RemoteFlag;     //Whether it is a remore frame
        public byte ExternFlag;     //Whether it is a extended frame
        public byte DataLen;

        public fixed byte Data[8];

        public fixed byte Reserved[3];
    }
    //2. Define the data type of the CAN message frame.
    //public struct VCI_CAN_OBJ
    //{
    //    public UInt32 ID;
    //    public UInt32 TimeStamp;
    //    public byte TimeFlag;
    //    public byte SendType;
    //    public byte RemoteFlag;//Whether it is a remore frame
    //    public byte ExternFlag;//Whether it is a extended frame
    //    public byte DataLen;
    //    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
    //    public byte[] Data;
    //    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
    //    public byte[] Reserved;

    //    public void Init()
    //    {
    //        Data = new byte[8];
    //        Reserved = new byte[3];
    //    }
    //}

    // 3. Define the data type of the CAN controller status.
    public struct VCI_CAN_STATUS
    {
        public byte ErrInterrupt;
        public byte regMode;
        public byte regStatus;
        public byte regALCapture;
        public byte regECCapture;
        public byte regEWLimit;
        public byte regRECounter;
        public byte regTECounter;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
        public byte[] Reserved;
    }

    // 4. Define the data type of the error message.
    public struct VCI_ERR_INFO
    {
        public UInt32 ErrCode;
        public byte Passive_ErrData1;
        public byte Passive_ErrData2;
        public byte Passive_ErrData3;
        public byte ArLost_ErrData;
    }

    // 5. Define the data type for initializing CAN
    public struct VCI_INIT_CONFIG
    {
        public UInt32 AccCode;
        public UInt32 AccMask;
        public UInt32 Reserved;
        public byte Filter;
        public byte Timing0;
        public byte Timing1;
        public byte Mode;
    }

    public struct CHGDESIPANDPORT
    {
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)]
        public byte[] szpwd;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
        public byte[] szdesip;
        public Int32 desport;

        public void Init()
        {
            szpwd = new byte[10];
            szdesip = new byte[20];
        }
    }

    ///////// new add struct for filter /////////
    //typedef struct _VCI_FILTER_RECORD{
    //    DWORD ExtFrame;	//Whether it is an extended frame
    //    DWORD Start;
    //    DWORD End;
    //}VCI_FILTER_RECORD,*PVCI_FILTER_RECORD;
    public struct VCI_FILTER_RECORD
    {
        public UInt32 ExtFrame;
        public UInt32 Start;
        public UInt32 End;
    }

    class csExtCANControlFunction
    {
        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_OpenDevice(UInt32 DeviceType, UInt32 DeviceInd, UInt32 Reserved);
        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_CloseDevice(UInt32 DeviceType, UInt32 DeviceInd);
        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_InitCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_INIT_CONFIG pInitConfig);
        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_ReadBoardInfo(UInt32 DeviceType, UInt32 DeviceInd, ref VCI_BOARD_INFO pInfo);
        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_ReadErrInfo(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_ERR_INFO pErrInfo);
        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_ReadCANStatus(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_CAN_STATUS pCANStatus);

        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_GetReference(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, UInt32 RefType, ref byte pData);
        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_SetReference(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, UInt32 RefType, ref byte pData);
        //unsafe static extern UInt32 VCI_SetReference(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, UInt32 RefType, byte* pData);

        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_GetReceiveNum(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);
        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_ClearBuffer(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);

        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_StartCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);
        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_ResetCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);

        [DllImport("controlcan.dll")]
        static extern UInt32 VCI_Transmit(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_CAN_OBJ pSend, UInt32 Len);

        //[DllImport("controlcan.dll")]
        //static extern UInt32 VCI_Receive(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_CAN_OBJ pReceive, UInt32 Len, Int32 WaitTime);
        [DllImport("controlcan.dll", CharSet = CharSet.Ansi)]
        static extern UInt32 VCI_Receive(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, IntPtr pReceive, UInt32 Len, Int32 WaitTime);
    }
}