commit 78861c0aef1859165158e36b808b8c43dc2d38b4
author Harald Welte <laforge@osmocom.org> Thu May 14 13:28:07 2020 +0200
committer Harald Welte <laforge@osmocom.org> Mon Aug 03 02:29:21 2020 +0200
tree c7659fac5074c1a0d8026cbe524124c62dcdc61b
parent 95e2dfbc83437ddab54f7882edfd0fe79b767ba9

Add new TRAU frame sync code

This code is able to detect and sync against a variety of TRAU
frame sync patterns.  Focus is so far on those patterns present on
16k sub-slots, but 8k sub-slots are expected to be supported soon,
too.

A new codebase for this is required as the old OsmoNITB code had
conflated a 16k sub-slot multiplexer with TRAU frame synchronization,
so there was no way to separate those two parts and hence no way to
support 8k sub-slots.

Change-Id: Ia6fe6228b0b8b9a27999f37ce1115ed5558881ea

tests/trau_sync/trau_sync_test.err

diff --git a/tests/trau_sync/trau_sync_test.err b/tests/trau_sync/trau_sync_test.err
new file mode 100644
index 0000000..f3eac3c
--- /dev/null
+++ b/tests/trau_sync/trau_sync_test.err
@@ -0,0 +1,15 @@
+<0000> trau_sync(test){WAIT_FRAME_ALIGN}: Allocated
+<0000> trau_sync(test){WAIT_FRAME_ALIGN}: Received Event RX_BITS
+<0000> trau_sync(test){WAIT_FRAME_ALIGN}: Received Event RX_BITS
+<0000> trau_sync(test){WAIT_FRAME_ALIGN}: Received Event RX_BITS
+<0000> trau_sync(test){WAIT_FRAME_ALIGN}: state_chg to FRAME_ALIGNED
+<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+<0000> trau_sync(test){FRAME_ALIGNED}: state_chg to FRAME_ALIGNMENT_LOST
+<0000> trau_sync(test){FRAME_ALIGNMENT_LOST}: Received Event RX_BITS
+
\ No newline at end of file