roll: pigweed pw_bluetooth: Fix RFCOMM information length off by one

A misreading of the spec led to confusion on whether credits was counted
as part of information_length. It is _not_, but it is included in the
calculation for max allowed payload.

Fix this and standardize on `information` as the name used in the spec
vs payload.

Also add helper flag for checking whether a frame is UIH or not

Add standalone unit tests for RFCOMM.

Original-Bug: 378692444
Original-Bug: 378691959
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/249092
Original-Revision: 40d4c1261275065d30e77ea68fbea69061b70e78

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 5b5c7815e957d3..40d4c126127506
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8731228243700534209
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Idf410896bd3f2b3ba9eadbcb822d30240a9c820e
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/248651
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: 4c83c13d4e4e96397f3a9580a37b22cb7b5f2eee
  1. .github/
  2. .vscode/
  3. apps/
  4. modules/
  5. system/
  6. targets/
  7. tools/
  8. .bazelignore
  9. .bazelrc
  10. .bazelversion
  11. .buildifier.json
  12. .clang-format
  13. .clangd.shared
  14. .gitignore
  15. .pw_console.yaml
  16. AUTHORS
  17. BUILD.bazel
  18. CONTRIBUTING.md
  19. LICENSE
  20. MODULE.bazel
  21. OWNERS
  22. pigweed.json
  23. README.md
README.md

Pigweed: minimal Bazel example

This repository contains a minimal example of a Bazel-based Pigweed project. It is a LED-blinking service (featuring RPC control!) for the Raspberry Pi Pico. It can also be run on any computer using the included simulator.

Getting the code

git clone https://pigweed.googlesource.com/pigweed/quickstart/bazel pw_bazel_quickstart
cd pw_bazel_quickstart

Dependencies

The only dependency that must be installed is Bazelisk.

Bazelisk is a launcher for the Bazel build system that allows for easy management of multiple Bazel versions.

Instructions for installing Bazelisk can be found here.

Running on the simulator

To run the simulator, type: bazelisk run //apps/blinky:simulator_blinky Then, in a new console, connect to the simulator using: bazelisk run //apps/blinky:simulator_console

Running on hardware

To start, connect a Raspberry Pi Pico, Pico 2, or debug probe via USB.

To run on the Raspberry Pi Pico, type: bazelisk run //apps/blinky:flash_rp2040 Then, in a new console, connect to the device using: bazelisk run //apps/blinky:rp2040_console

Controlling the LED

Once connected with a console, RPCs can be sent to control the LED. Try running:

device.set_led(True)
device.set_led(False)
device.toggle_led()
device.blink(blink_count=3)

Running unit tests on the host device

bazelisk test //... will run the unit tests defined in this project, such as the ones in modules/blinky/blinky_test.cc.

Running unit tests on hardware

bazelisk run @pigweed//targets/rp2040/py:unit_test_server in one console followed by bazelisk test //... --config=rp2040 will also allow running the unit tests on-device.

Next steps

Try poking around the codebase for inspiration about how Pigweed projects can be organized. Most of the relevant code in this quickstart (including RPC definitions) is inside modules/blinky, with some client-side Python code in tools/console.py.