//创芯科技CAN卡的引用库，需要安装对应驱动
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace CCDCount.DLL.CanBus
{
    unsafe public struct VCI_BOARD_INFO//使用不安全代码
    {
        public UInt16 hw_Version;
        public UInt16 fw_Version;
        public UInt16 dr_Version;
        public UInt16 in_Version;
        public UInt16 irq_Num;
        public byte can_Num;

        public fixed byte str_Serial_Num[20];
        public fixed byte str_hw_Type[40];
        public fixed byte Reserved[8];
    }

    /////////////////////////////////////////////////////
    //2.定义CAN信息帧的数据类型。
    unsafe public struct VCI_CAN_OBJ  //使用不安全代码
    {
        public uint ID;
        public uint TimeStamp;        //时间标识
        public byte TimeFlag;         //是否使用时间标识
        public byte SendType;         //发送标志。保留，未用
        public byte RemoteFlag;       //是否是远程帧
        public byte ExternFlag;       //是否是扩展帧
        public byte DataLen;          //数据长度
        public fixed byte Data[8];    //数据
        public fixed byte Reserved[3];//保留位

    }

    //3.定义初始化CAN的数据类型
    public struct VCI_INIT_CONFIG
    {
        public UInt32 AccCode;
        public UInt32 AccMask;
        public UInt32 Reserved;
        public byte Filter;   //0或1接收所有帧。2标准帧滤波，3是扩展帧滤波。
        public byte Timing0;  //波特率参数，具体配置，请查看二次开发库函数说明书。
        public byte Timing1;
        public byte Mode;     //模式，0表示正常模式，1表示只听模式,2自测模式
    }

    /*------------其他数据结构描述---------------------------------*/
    //4.USB-CAN总线适配器板卡信息的数据类型1，该类型为VCI_FindUsbDevice函数的返回参数。
    public struct VCI_BOARD_INFO1
    {
        public UInt16 hw_Version;
        public UInt16 fw_Version;
        public UInt16 dr_Version;
        public UInt16 in_Version;
        public UInt16 irq_Num;
        public byte can_Num;
        public byte Reserved;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)] public byte[] str_Serial_Num;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
        public byte[] str_hw_Type;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
        public byte[] str_Usb_Serial;
    }

    /*------------数据结构描述完成---------------------------------*/

    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];
        }
    }
    public static class CanLibraryClass
    {
        /*------------兼容ZLG的函数描述---------------------------------*/
        [DllImport("controlcan.dll")]
        public static extern UInt32 VCI_OpenDevice(UInt32 DeviceType, UInt32 DeviceInd, UInt32 Reserved);
        [DllImport("controlcan.dll")]
        public static extern UInt32 VCI_CloseDevice(UInt32 DeviceType, UInt32 DeviceInd);
        [DllImport("controlcan.dll")]
        public static extern UInt32 VCI_InitCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_INIT_CONFIG pInitConfig);

        [DllImport("controlcan.dll")]
        public static extern UInt32 VCI_ReadBoardInfo(UInt32 DeviceType, UInt32 DeviceInd, ref VCI_BOARD_INFO pInfo);

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

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

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

        [DllImport("controlcan.dll")]
        public static extern UInt32 VCI_Receive(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_CAN_OBJ pReceive, UInt32 Len, Int32 WaitTime);

        /*------------其他函数描述---------------------------------*/

        [DllImport("controlcan.dll")]
        public static extern UInt32 VCI_ConnectDevice(UInt32 DevType, UInt32 DevIndex);
        [DllImport("controlcan.dll")]
        public static extern UInt32 VCI_UsbDeviceReset(UInt32 DevType, UInt32 DevIndex, UInt32 Reserved);
        [DllImport("controlcan.dll")]
        public static extern UInt32 VCI_FindUsbDevice2(ref VCI_BOARD_INFO pInfo);
    }
}