--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ater8/submux.h	Fri Aug 30 19:02:42 2024 +0000
@@ -0,0 +1,36 @@
+/*
+ * The structures and functions defined in this header file deal with
+ * interfacing to the Submultiplexer part of Nokia's Transcoder and
+ * Submultiplexer - the 8 kbit/s version.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <osmocom/core/bits.h>
+#include <osmocom/isdn/i460_mux.h>
+#include <osmocom/trau/trau_frame.h>
+
+#define	ATER_SUBSLOTS	8
+
+struct ater_subslot {
+	struct osmo_i460_subchan *schan;
+	int nr;
+	bool is_active;
+	bool frame_has_taf;
+	struct osmo_trau_frame ul_frame;
+	unsigned mfrm_count;
+	int16_t *play_buffer;
+	unsigned play_buf_total;
+	unsigned play_buf_ptr;
+	bool play_wait_align;
+};
+
+extern struct ater_subslot subslots[ATER_SUBSLOTS];
+
+void i460_rx_func(struct osmo_i460_subchan *schan, void *user_data,
+		  const ubit_t *bits, unsigned int num_bits);
+
+void init_trau_ul_frame(int nr);