initial commit

libraries/FastLED/ci/dockerfiles/Dockerfile.qemu-esp32-lite

@@ -0,0 +1,92 @@
+# Lightweight Dockerfile for ESP32 QEMU emulation
+# Uses pre-built QEMU binaries without full ESP-IDF
+
+FROM ubuntu:22.04
+
+# Install minimal dependencies
+RUN apt-get update && apt-get install -y \
+    wget \
+    xz-utils \
+    python3 \
+    python3-pip \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install esptool for flash image creation
+RUN pip3 install --no-cache-dir esptool
+
+# Create workspace
+WORKDIR /workspace
+
+# Download and install ESP32 QEMU binaries
+ENV QEMU_VERSION=esp-develop-8.2.0-20240122
+RUN mkdir -p /opt/qemu && \
+    cd /opt/qemu && \
+    wget -q https://github.com/espressif/qemu/releases/download/${QEMU_VERSION}/qemu-xtensa-softmmu-${QEMU_VERSION}-x86_64-linux-gnu.tar.xz && \
+    tar -xf qemu-xtensa-softmmu-${QEMU_VERSION}-x86_64-linux-gnu.tar.xz && \
+    rm qemu-xtensa-softmmu-${QEMU_VERSION}-x86_64-linux-gnu.tar.xz && \
+    mv qemu /usr/local/
+
+# Add QEMU to PATH
+ENV PATH=/usr/local/qemu/bin:$PATH
+
+# Download ESP32 ROM files
+RUN mkdir -p /opt/esp-rom && \
+    cd /opt/esp-rom && \
+    wget -q https://github.com/espressif/qemu/raw/esp-develop/pc-bios/esp32-v3-rom.bin && \
+    wget -q https://github.com/espressif/qemu/raw/esp-develop/pc-bios/esp32c3-rom.bin && \
+    wget -q https://github.com/espressif/qemu/raw/esp-develop/pc-bios/esp32s2-rom.bin && \
+    wget -q https://github.com/espressif/qemu/raw/esp-develop/pc-bios/esp32s3-rom.bin
+
+# Set ROM path environment variable
+ENV ESP_ROM_PATH=/opt/esp-rom
+
+# Create entrypoint script
+RUN cat > /entrypoint.sh << 'EOF'
+#!/bin/bash
+set -e
+
+# Default values
+FIRMWARE=${FIRMWARE:-/workspace/firmware.bin}
+MACHINE=${MACHINE:-esp32}
+FLASH_SIZE=${FLASH_SIZE:-4}
+TIMEOUT=${TIMEOUT:-30}
+
+# Select ROM based on machine type
+case "$MACHINE" in
+    esp32)   ROM_FILE=/opt/esp-rom/esp32-v3-rom.bin ;;
+    esp32c3) ROM_FILE=/opt/esp-rom/esp32c3-rom.bin ;;
+    esp32s2) ROM_FILE=/opt/esp-rom/esp32s2-rom.bin ;;
+    esp32s3) ROM_FILE=/opt/esp-rom/esp32s3-rom.bin ;;
+    *) echo "Unknown machine: $MACHINE"; exit 1 ;;
+esac
+
+# Check if firmware exists
+if [ ! -f "$FIRMWARE" ]; then
+    echo "ERROR: Firmware not found: $FIRMWARE"
+    exit 1
+fi
+
+# Create flash image
+FLASH_IMG=/tmp/flash.bin
+dd if=/dev/zero of=$FLASH_IMG bs=1M count=$FLASH_SIZE 2>/dev/null
+dd if=$FIRMWARE of=$FLASH_IMG bs=1 seek=$((0x10000)) conv=notrunc 2>/dev/null
+
+# Run QEMU with timeout
+timeout $TIMEOUT qemu-system-xtensa \
+    -nographic \
+    -machine $MACHINE \
+    -bios $ROM_FILE \
+    -drive file=$FLASH_IMG,if=mtd,format=raw \
+    -global driver=timer.esp32.timg,property=wdt_disable,value=true \
+    "$@"
+EOF
+
+RUN chmod +x /entrypoint.sh
+
+# Set entrypoint
+ENTRYPOINT ["/entrypoint.sh"]
+
+# Labels
+LABEL maintainer="FastLED Team"
+LABEL description="Lightweight ESP32 QEMU Docker image"
+LABEL version="1.0.0"