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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Runtime.InteropServices;
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namespace USB2XXX
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{
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class USB2IIC
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{
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//定义函数返回错误代码
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public const Int32 IIC_SUCCESS = (0); //函数执行成功
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public const Int32 IIC_ERR_NOT_SUPPORT = (-1); //适配器不支持该函数
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public const Int32 IIC_ERR_USB_WRITE_FAIL = (-2); //USB写数据失败
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public const Int32 IIC_ERR_USB_READ_FAIL = (-3); //USB读数据失败
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public const Int32 IIC_ERR_CMD_FAIL = (-4); //命令执行失败
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public const Int32 IIC_ERR_PARA_ERROR = (-5); //参数传入错误
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//定义IIC函数返回错误代码
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public const Int32 IIC_ERROR_SUCCESS = 0; //操作成功
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public const Int32 IIC_ERROR_CHANNEL = 1; //该通道不支持该函数
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public const Int32 IIC_ERROR_BUSY = 2; //总线忙
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public const Int32 IIC_ERROR_START_FAILD = 3; //启动总线失败
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public const Int32 IIC_ERROR_TIMEOUT = 4; //超时
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public const Int32 IIC_ERROR_NACK = 5; //从机无应答
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//定义初始化IIC的数据类型
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public struct IIC_CONFIG
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{
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public UInt32 ClockSpeedHz; //IIC时钟频率:单位为Hz
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public UInt16 OwnAddr; //USB2XXX为从机时自己的地址
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public Byte Master; //主从选择控制:0-从机，1-主机
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public Byte AddrBits; //从机地址模式，7-7bit模式，10-10bit模式
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public Byte EnablePu; //使能引脚芯片内部上拉电阻，若不使能，则I2C总线上必须接上拉电阻
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}
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//USB2IIC基础函数
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_Init(Int32 DevHandle,Int32 IICIndex, ref IIC_CONFIG pConfig);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_GetSlaveAddr(Int32 DevHandle,Int32 IICIndex,Int16[] pSlaveAddr);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_WriteBytes(Int32 DevHandle,Int32 IICIndex,Int16 SlaveAddr,Byte[] pWriteData,Int32 WriteLen,Int32 TimeOutMs);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_ReadBytes(Int32 DevHandle,Int32 IICIndex,Int16 SlaveAddr,Byte[] pReadData,Int32 ReadLen,Int32 TimeOutMs);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_WriteReadBytes(Int32 DevHandle,Int32 IICIndex,Int16 SlaveAddr,Byte[] pWriteData,Int32 WriteLen,Byte[] pReadData,Int32 ReadLen,Int32 TimeOutMs);
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//块读写函数
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_BlockWriteBytes(Int32 DevHandle,Int32 IICIndex,Int16 SlaveAddr,Byte[] pWriteData,Int32 BlockSize,Int32 BlockNum,Int32 IntervalTimeUs);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_BlockReadBytes(Int32 DevHandle,Int32 IICIndex,Int16 SlaveAddr,Byte[] pReadData,Int32 BlockSize,Int32 BlockNum,Int32 IntervalTimeUs);
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//从机操作相关函数
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_SlaveWriteBytes(Int32 DevHandle,Int32 IICIndex,Byte[] pWriteData,Int32 WriteLen,Int32 TimeOutMs);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_SlaveReadBytes(Int32 DevHandle,Int32 IICIndex,Byte[] pReadData,Int32 TimeOutMs);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_SlaveWriteRemain(Int32 DevHandle,Int32 IICIndex);
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//事件操作相关函数
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_WriteBytesOfEvent(Int32 DevHandle,Int32 IICIndex,Int16 SlaveAddr,Byte[] pWriteData,Int32 WriteLen,Int32 EventPin,Byte EventType,Int32 TimeOutOfEventMs);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_ReadBytesOfEvent(Int32 DevHandle,Int32 IICIndex,Int16 SlaveAddr,Byte[] pReadData,Int32 ReadLen,Int32 EventPin,Byte EventType,Int32 TimeOutOfEventMs);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 IIC_WriteReadBytesOfEvent(Int32 DevHandle, Int32 IICIndex, Int16 SlaveAddr, Byte[] pWriteData, Int32 WriteLen, Byte[] pReadData, Int32 ReadLen, Int32 EventPin, Byte EventType, Int32 TimeOutOfEventMs);
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//SMBus相关函数定义
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_Init(Int32 DevHandle,Int32 IICIndex,Int32 ClockSpeedHz,Byte EnablePu);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_QuickCommand(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte WriteReadFlag);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_WriteByte(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte Data,Byte WithPEC);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_ReadByte(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte[] pData,Byte WithPEC);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_WriteByteProtocol(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte CommandCode, Byte Data,Byte WithPEC);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_WriteWordProtocol(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte CommandCode, UInt16 Data,Byte WithPEC);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_ReadByteProtocol(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte CommandCode, Byte[] pData,Byte WithPEC);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_ReadWordProtocol(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte CommandCode, UInt16[] pData,Byte WithPEC);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_ProcessCall(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte CommandCode, UInt16 WriteData, UInt16[] pReadData,Byte WithPEC);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_BlockWrite(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte CommandCode, Byte[] pWriteData,Int32 WriteCount,Byte WithPEC);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_BlockRead(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte CommandCode, Byte[] pReadData,Int32[] pReadCount,Byte WithPEC);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 SMBUS_BlockProcessCall(Int32 DevHandle,Int32 IICIndex,UInt16 SlaveAddr,Byte CommandCode, Byte[] pWriteData,Int32 WriteCount, Byte[] pReadData,Int32[] pReadCount,Byte WithPEC);
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}
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}
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