File and class renaming

Crc16.cs

@@ -0,0 +1,51 @@
+namespace OneWireAPI
+{
+    internal class Crc16
+    {
+        private static readonly short[] OddParity = { 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0 };
+
+        public static int Calculate(byte[] nData, int iStart, int iEnd)
+        {
+            return Calculate(nData, iStart, iEnd, 0);
+        }
+
+        public static int Calculate(byte nData, int iInitialValue)
+        {
+            var aData = new byte[1];
+
+            aData[0] = nData;
+
+            return Calculate(aData, 0, 0, iInitialValue);
+        }
+
+        public static int Calculate(byte[] nData, int iStart, int iEnd, int iInitialValue)
+        {
+            int index;								// Loop index
+            var currentCrc = iInitialValue;	        // Current CRC accumulator
+
+            // Loop over all bytes in the input array
+            for (index = iStart; index <= iEnd; index++)
+            {
+                // Get the current element of data
+                int iBuffer = nData[index];
+
+                // Calculate the current CRC for this position
+                iBuffer = (iBuffer ^ (currentCrc & 0xFF)) & 0xFF;
+
+                currentCrc >>= 8;
+
+                if ((OddParity[iBuffer & 0xF] ^ OddParity[iBuffer >> 4]) != 0)
+                    currentCrc ^= 0xC001;
+
+                iBuffer <<= 6;
+                currentCrc ^= iBuffer;
+
+                iBuffer <<= 1;
+                currentCrc ^= iBuffer;
+            }
+
+            // Return the final CRC value
+            return currentCrc;
+        }
+    }
+}