Add audio_test_freertos & audio_4_channel_mic_freertos #3348

	name: Build RISC-V

	on:
	workflow_dispatch:
	push:
	paths:
	- 'src/**'
	- 'examples/**'
	- 'lib/**'
	- 'hw/**'
	- 'tools/get_deps.py'
	- '.github/workflows/build_riscv.yml'
	pull_request:
	branches: [ master ]
	paths:
	- 'src/**'
	- 'examples/**'
	- 'lib/**'
	- 'hw/**'
	- 'tools/get_deps.py'
	- '.github/workflows/build_riscv.yml'

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	build-riscv:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	family:
	# Alphabetical order
	- 'ch32v307'
	- 'fomu'
	- 'gd32vf103'
	steps:
	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.x'

	- name: Checkout TinyUSB
	uses: actions/checkout@v4

	- name: Set Toolchain URL
	run: echo >> $GITHUB_ENV TOOLCHAIN_URL=https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack/releases/download/v10.1.0-1.1/xpack-riscv-none-embed-gcc-10.1.0-1.1-linux-x64.tar.gz

	- name: Cache Toolchain
	uses: actions/cache@v4
	id: cache-toolchain
	with:
	path: ~/cache/
	key: ${{ runner.os }}-21-03-04-${{ env.TOOLCHAIN_URL }}

	- name: Install Toolchain
	if: steps.cache-toolchain.outputs.cache-hit != 'true'
	run: \|
	mkdir -p ~/cache/toolchain
	wget --progress=dot:mega $TOOLCHAIN_URL -O toolchain.tar.gz
	tar -C ~/cache/toolchain -xaf toolchain.tar.gz

	- name: Set Toolchain Path
	run: echo >> $GITHUB_PATH `echo ~/cache/toolchain/*/bin`

	- name: Get Dependencies
	run: python3 tools/get_deps.py ${{ matrix.family }}

	- name: Build
	run: python3 tools/build_make.py ${{ matrix.family }}

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