/// <summary>
/// Check if the request is valid with respect to device type, id, and request length
/// </summary>
/// <param name="deviceType"></param>
/// <param name="deviceId"></param>
/// <param name="request"></param>
/// <returns></returns>
static private bool IsValidRequest(byte deviceType, byte deviceId, ref byte[] request)
{
if (DeviceTypeChecker.IsValidDeviceType(deviceType) == false)
{
Tracer.WriteError("Invalid device type: {0}", deviceType);
return(false);
}
if (DeviceIdChecker.IsValidLogicalDeviceId(deviceType, deviceId) == false)
{
Tracer.WriteError("Invalid device ID: {0}", deviceId);
return(false);
}
if (request == null)
{
Tracer.WriteError("Null request packet");
return(false);
}
// For server commands, simply pass through.
// Thus, no need to check the request packet length as long as it is not null
if (deviceType != (byte)DeviceType.Server)
{
if (RequestPacketUtil.IsValidRequestLength(ref request) == false)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Get a physical ID from a logical ID
/// </summary>
/// <param name="deviceType"></param>
/// <param name="physicalDeviceId"></param>
/// <returns></returns>
static internal byte GetPhysicalIdFromLogicalId(byte deviceType, byte logicalDeviceId)
{
byte physicalDeviceId = logicalDeviceId;
// For non-server device types, physical and logical IDs are same
if (DeviceTypeChecker.IsServerOrPowerDeviceType(deviceType) == true)
{
int index = Array.IndexOf(logicalServerIdTable, logicalDeviceId);
physicalDeviceId = physicalServerIdTable[index];
}
return(physicalDeviceId);
}
