RFC: Transform note-zephyr into a Zephyr Module

[ubieda]

Description

This RFC attempts to capture a proposal to turn this upstream repository into a Zephyr module, to allow easier use for developer to leverage Blues Notecard APIs to develop their Zephyr-based applications.

Motivation

Most of these changes have already been implemented in a down-stream fork and can be contributed if welcomed by @blues.

Proposed Changes

• Change repository structure from a single-example scheme towards a common module structure.
  • Update repo structure.
  • Update documentation.
  • Update Dockerfile.
• Refactor required initialization sequences into common-code, re-usable across applications.
  • OS Hooks.
  • Transport: UART/I2C.
• Add ability to specify Notecard transport through device-tree instantiation.
  • I2C.
  • UART.

[ubieda]

@zfields @bsatrom LMK if you have any thoughts/suggestions!

[zfields]

Thanks for this PR! I will look at it as soon as I get a chance. ❤️

[Bucknalla]

Hey @ubieda I'm on the other side (working with Blues) now! I'm starting to look at picking this back up because I want to improve our support for Zephyr. I really like your driver structure and I think your changes to the note-c hooks are great. If you're happy to go ahead and open a PR, I'll happily review it to get it merged.

[ubieda]

Sounds good. I'll file a PR soon!