Added missing audiohub_adat.h

lib_xua/src/core/audiohub/audiohub_adat.h

@@ -0,0 +1,48 @@
+#pragma unsafe arrays
+static inline void TransferAdatTxSamples(chanend c_adat_out, const unsigned samplesFromHost[], int smux, int handshake)
+{
+
+    /* Do some re-arranging for SMUX.. */
+    unsafe
+    {
+        unsigned * unsafe samplesFromHostAdat = &samplesFromHost[ADAT_TX_INDEX];
+
+        /* Note, when smux == 1 this loop just does a straight 1:1 copy */
+        //if(smux != 1)
+        {
+            int adatSampleIndex = adatCounter;
+            for(int i = 0; i < (8/smux); i++)
+            {
+                adatSamples[adatSampleIndex] = samplesFromHostAdat[i];
+                adatSampleIndex += smux;
+            }
+        }
+    }
+
+    adatCounter++;
+
+    if(adatCounter == smux)
+    {
+
+#ifdef ADAT_TX_USE_SHARED_BUFF
+        unsafe
+        {
+            /* Wait for ADAT core to be done with buffer */
+            /* Note, we are "running ahead" of the ADAT core */
+            inuint(c_adat_out);
+
+            /* Send buffer pointer over to ADAT core */
+            volatile unsigned * unsafe samplePtr = &adatSamples;
+            outuint(c_adat_out, (unsigned) samplePtr);
+        }
+#else
+#pragma loop unroll
+        for (int i = 0; i < 8; i++)
+        {
+            outuint(c_adat_out, samplesFromHost[ADAT_TX_INDEX + i]);
+        }
+#endif
+        adatCounter = 0;
+    }
+}
+#endif