tree 717fd9ce8a1b018a614f7247a6764aa09669c4cd
parent 0978df24cc38a36e97fb3a5d7bf553e7aebed858
author Marie Janssen <jamuraa@google.com> 1789536588 +0000
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1791411322 -0700

rust/bt-pacs: Add debug logging to PACS

Add debug! and trace! logging to PACS characteristic decoding and
reading to improve visibility into audio capability handling.

Debugging PACS against a real peer requires seeing what was read from
each characteristic and how it was interpreted; without it a malformed
record is indistinguishable from a missing one.

 - Log PAC record decoding, including record counts and codec ids
 - Log audio location and audio context decoding results
 - Add try_read implementations that log the handle being read and the
   number of bytes returned, sharing a read_characteristic_value
   helper that handles truncated reads
 - Implement Decodable for AudioContexts and log the decoded contexts
 - Depend on the log crate
 - Add unit tests for Verbose and -v/-vv flags in the debug CLI

Test: cargo test -p bt-pacs
      cargo test --workspace
Change-Id: I5187de3d249bf40d68ffe11ce11012516a6a6964
Reviewed-on: https://bluetooth-review.googlesource.com/c/bluetooth/+/4121