refactor(esp_tinyusb): TinyUSB task deletion notification driven (part 1/3)

[roma-jam]

Description

This is the first part of the plan: Refactor the runtime_config test application

• Fixed concurrent access to the nb_of_success var from several tasks
• Changed the logic of getting notification from the worker thread to sem_done instead of direct notification
• Added the test case for uninstall the tinyusb driver via several tasks
• Added README.md to runtime_config test application

Related

• Follow-up in: feature(esp_tinyusb): TinyUSB task deletion notification driven (part 2/3) #325
• Relates IEC-351
• Blocked by fix(ci): Unlocks CI by temp disabling the usb host_managed tests on latest branch #324

Testing

• CI
• Added test case: "Multitask: Uninstall" [runtime_config][default]

---

Checklist

Before submitting a Pull Request, please ensure the following:

• 🚨 This PR does not introduce breaking changes.
• All CI checks (GH Actions) pass.
• Documentation is updated as needed.
• Tests are updated or added as necessary.
• Code is well-commented, especially in complex areas.
• Git history is clean — commits are squashed to the minimum necessary.

---

Note

Refactors TinyUSB runtime_config multitask tests to use semaphore-based synchronization with thread-safe counters, adds a new uninstall test, and introduces a README.

• Tests (runtime_config/main/test_multitask_access.c):
  • Switch worker completion signaling to counting sem_done; tasks start via notifications and wait with xSemaphoreTake.
  • Make success counter thread-safe (volatile + spinlock) and track task handles for coordinated start.
  • Extract USB PHY helpers: test_init_phy() and test_deinit_phy().
  • Add new test: "Multitask: Uninstall" tagged [runtime_config][default].
  • Update existing multitask install test to [default], improve assertions and task creation (pdPASS).
• Docs:
  • Add README.md describing the runtime_config test app, focus areas, and tag taxonomy.

^{Written by Cursor Bugbot for commit 5ac149b. This will update automatically on new commits. Configure here.}

[Copilot]

Pull Request Overview

This PR refactors the TinyUSB runtime_config test application to improve test reliability and enable local execution. The changes address concurrent access issues in multitask testing and modernize the pytest configuration for better developer experience.

Key changes:

• Fixed race condition in multitask access test by adding spinlock protection for shared counter
• Converted pytest markers to parametrize format for easier local test execution
• Added comprehensive README documentation for the test application

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
pytest_runtime_config.py	Migrated from individual @pytest.mark decorators to @pytest.mark.parametrize for target specification
test_multitask_access.c	Added spinlock to protect concurrent access to nb_of_success counter and improved task synchronization
README.md	Added new documentation explaining test purpose, structure, tags, and usage

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull Request Overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[roma-jam]

Hi
@tore-espressif
@peter-marcisovsky
@igi540

This PR is ready, PTAL.

[igi540]

LGTM overall. I left one minor nitpick in an inline comment.

[cursor]

This is the final PR Bugbot will review for you during this billing cycle

Your free Bugbot reviews will reset on December 20

Details

Your team is on the Bugbot Free tier. On this plan, Bugbot will review limited PRs each billing cycle for each member of your team.

To receive Bugbot reviews on all of your PRs, visit the Cursor dashboard to activate Pro and start your 14-day free trial.