xua_pdm_mic.h moved to api

lib_xua/api/xua_pdm_mic.h

@@ -0,0 +1,47 @@
+// Copyright (c) 2015-2018, XMOS Ltd, All rights reserved
+
+/* Included from lib_mic_array */
+#include "mic_array.h"
+
+
+/* Configures PDM ports/clocks */
+void xua_pdm_mic_config(in port p_mclk_pdm);
+
+#ifdef MIC_PROCESSING_USE_INTERFACE
+/* Interface based user processing */
+typedef interface mic_process_if
+{
+    void transfer_buffers(mic_array_frame_time_domain * unsafe audio);
+    void init();
+} mic_process_if;
+
+
+[[combinable]]
+void XUA_PdmBuffer(streaming chanend c_ds_output[2], chanend c_audio
+#ifdef MIC_PROCESSING_USE_INTERFACE
+   , client mic_process_if i_mic_process
+#endif
+);
+
+[[combinable]]
+void user_pdm_process(server mic_process_if i_mic_data);
+
+/* PDM interface and decimation cores */
+void xua_pdm_mic(streaming chanend c_ds_output[2]);
+
+#else
+
+/* Simple user hooks/call-backs */
+void user_pdm_process(mic_array_frame_time_domain * unsafe audio);
+
+void user_pdm_init();
+
+/* PDM interface and decimation cores */
+[[combinable]]
+void XUA_PdmBuffer(streaming chanend c_ds_output[2], chanend c_audio);
+
+/* PDM interface and decimation cores */
+void xua_pdm_mic(streaming chanend c_ds_output[2]);
+
+#endif
+