Implement independent ASHv2 protocol parsing (#606)

* Implement independent ASHv2 protocol parsing

* Implement dynamic timeout computation

* Use a semaphore instead of a lock to allow concurrent sending of un-ACKed frames

* Replace current ASH+EZSP implementation

* Increase max concurrency to match ASH

* Allow setting the ACK mode as host or NCP

* [TEST] Shut down the event loop with a separate exception

* Re-implement a CLI tool to parse ASH frames from debug logs

* Remove `host` handling of timeouts

* Properly send ACKs in response to re-transmitted frames

* Set maximum command concurrency to 1

* Get ASH TX and NAK handling working reliably

* Fix RStackFrame `to_bytes()`

* Bump flake8

* Optimize command logging for readability

* Get unit tests passing again

* Revert "[TEST] Shut down the event loop with a separate exception"

This reverts commit d155888.

* Fix startup reset unit test

* Use strict `zip`

* Use better parsing errors

* Revert "Use strict `zip`"

This reverts commit ce3da98.

* Implement both sides of ASH to make testing easier

* Only pop the pending frame future if the frame number was actually assigned

* Move NCP ASH implementation into tests

* Ensure tests pass with 3.8

* Properly handle cancel and substitute bytes

* Add a unit test

* Simulate NAK state during end-to-end testing

* Ensure transports are resilient when it comes to framing

* Introduce random loss testing as well

* Add more tests

* Add more tests

* Cancel all pending frames when receiving a NAK

* Move reserved bytes into an enum

* Send a `CANCEL` byte before the reset frame

* Improve logging

* Fix unit tests

* Ensure codebase works with 3.8

* Almost at 100% coverage

* Unit test UART callbacks

* Get coverage up to 100%

* Make tests less flaky

.pre-commit-config.yaml

@@ -18,11 +18,12 @@ repos:
           - --quiet
 
   - repo: https://github.com/pycqa/flake8
-    rev: 6.0.0
+    rev: 7.0.0
     hooks:
       - id: flake8
+        entry: pflake8
         additional_dependencies: 
-          - Flake8-pyproject==1.2.3
+          - pyproject-flake8==7.0.0
 
   - repo: https://github.com/PyCQA/isort
     rev: 5.12.0