tree 63c36c4709895abbca76ce42e40ffe2cc710b0ac
parent 133a555e3505ff55af92eeb52c8e5b6f067fb2dc
author JesseMelon <jessechambers2000@icloud.com> 1786744822 -0400
committer Anthony Rocha <116300062+rusty1968@users.noreply.github.com> 1787179957 -0700

i2c: Type-state ArmedDma refactor + on-hw abort test

Drop the runtime `committed` flag from ArmedDma; commit(self) now consumes
the guard via mem::forget, so a committed transfer is no longer a droppable
value and Drop tears down unconditionally.

Add the two-image i2c_dma_abort hardware test (master DMA + clock-stretching
slave) exercising the commit no-op path and the timeout -> guard-drop ->
soft-reset teardown path.

Co-Authored-By: Claude Opus 4 <noreply@anthropic.com>