protected override void OpenImplement(BusInfo busInfo)
{
string[] usbSerialNumbers = SiliconUSBBusNative.SI_GetAllDeviceProductString(SiliconUSBBusNative.SI_RETURN_SERIAL_NUMBER);
uint deviceNum = 0;
for (; deviceNum < usbSerialNumbers.Length; deviceNum++)
{
if (usbSerialNumbers[(int)deviceNum].Equals(busInfo.DriverValue, StringComparison.OrdinalIgnoreCase))
{
break;
}
}
if (deviceNum == usbSerialNumbers.Length)
{
throw new Exception(SiliconUSBBusNative.FormartErrorCode(SiliconUSBBusNative.SI_DEVICE_NOT_FOUND));
}
int er = SiliconUSBBusNative.SI_Open(deviceNum, ref hDevice);
if (er != SiliconUSBBusNative.SI_SUCCESS)
{
throw new Exception(SiliconUSBBusNative.FormartErrorCode(er));
}
er = SiliconUSBBusNative.SI_SetTimeouts((uint)busInfo.ReadTimeOut, (uint)busInfo.WriteTimeOut);
if (er != SiliconUSBBusNative.SI_SUCCESS)
{
throw new Exception(SiliconUSBBusNative.FormartErrorCode(er));
}
}
protected override void CloseImplement()
{
int er = SiliconUSBBusNative.SI_Close(hDevice);
if (er != SiliconUSBBusNative.SI_SUCCESS)
{
throw new Exception(SiliconUSBBusNative.FormartErrorCode(er));
}
hDevice = IntPtr.Zero;
}
protected override int ReadImplement(byte[] buf, int readMaxLen)
{
uint dataReaded = 0;
int er = SiliconUSBBusNative.SI_Read(hDevice, buf, (uint)readMaxLen, ref dataReaded, IntPtr.Zero);
if (er != SiliconUSBBusNative.SI_SUCCESS)
{
throw new Exception(SiliconUSBBusNative.FormartErrorCode(er));
}
return((int)dataReaded);
}
public BusInfo[] EnumerateBusInfos()
{
List <BusInfo> busInfos = new List <BusInfo>();
uint deviceNum = 0;
int ret = SiliconUSBBusNative.SI_GetNumDevices(ref deviceNum);
if (ret != SiliconUSBBusNative.SI_SUCCESS)
{
return(busInfos.ToArray());
}
for (uint i = 0; i < deviceNum; i++)
{
StringBuilder sb = new StringBuilder(SiliconUSBBusNative.SI_MAX_DEVICE_STRLEN);
ret = SiliconUSBBusNative.SI_GetProductString(i, sb, SiliconUSBBusNative.SI_RETURN_SERIAL_NUMBER);
if (ret == SiliconUSBBusNative.SI_SUCCESS)
{
string strSerialNumber = sb.ToString();
BusInfo busInfo = new BusInfo
{
AssemblyName = typeof(SiliconUSBBus).Assembly.FullName,
ClassFullName = typeof(SiliconUSBBus).FullName,
DriverDescription = "Silicon USB Device",
DriverValue = strSerialNumber,
Parent = null,
CacheResource = true,
DriverProvider = "NI",
EnableLog = false,
ReadableValue = "NI USB " + strSerialNumber,
ReadTimeOut = 500,
WriteTimeOut = 500,
Type = BusType.USB,
UiqueValue = "USB"
};
busInfos.Add(busInfo);
//如果是qrib则枚举级联的设备
if (strSerialNumber.IndexOf("qrib", StringComparison.OrdinalIgnoreCase) >= 0)
{
try
{
busInfos.AddRange(EnumerateQribSub(busInfo));
}
catch (Exception ex)
{
Debug.WriteLine("枚举QRIB(" + strSerialNumber + ")级联设备出错:" + ex.Message + "\n" + ex.StackTrace);
}
}
}
}
return(busInfos.ToArray());
}
protected override void WriteImplement(byte[] buf, int offset, int len)
{
int writed = 0;
uint writedBySI = 0;
while (writed <= len)
{
byte[] data = new byte[len - writed > SiliconUSBBusNative.SI_MAX_WRITE_SIZE ? SiliconUSBBusNative.SI_MAX_WRITE_SIZE : len - writed];
Array.Copy(buf, offset + writed, data, 0, data.Length);
int er = SiliconUSBBusNative.SI_Write(hDevice, data, (uint)data.Length, ref writedBySI, IntPtr.Zero);
if (er != SiliconUSBBusNative.SI_SUCCESS)
{
throw new Exception(SiliconUSBBusNative.FormartErrorCode(er));
}
if (writedBySI != data.Length)
{
throw new Exception(string.Format("Silicon SI_Write 失败，待写入数据:{0},实际写入数据:{1}", data.Length, writedBySI));
}
writed += data.Length;
}
}