Add half_duplex_write_async method to SpiDmaBus

[BestClaws]

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Pull Request Details 📖

Description

SpiDmaBus has convenience async methods but lacks half duplex write async version. the existing version does a busy poll which is not desired in async environments

Testing

Verified on my hardware. no test code in place.

[H01001000]

I think you can also add the read async too

[bugadani]

Testing

HIL tests

I think you should add some if you want to make this part of the PR description true ;)

[BestClaws]

Testing
HIL tests

I think you should add some if you want to make this part of the PR description true ;)

I may have misunderstood what HIL means from other reference PRs. Just tested it on hardware. let me update the pr description.

On a side note: both sync/async half_duplex_write methods seem to rendering the single SPI methods like transaction buggy giving bad data without error. although I need to verify that fact is actually the case

[bugadani]

Declaring "HIL test" on a PR (besides being lazy wording) means that the relevant change is tested in CI. In this case, that needs a new test case - and this PR will eventually need a new test case. You don't need to add any, but we would appreciate if you did.

[github-actions]

New commits in main has made this PR unmergable. Please resolve the conflicts.