Critical fixes based on review feedback:
Threading fixes:
- CSI callback now only copies data to buffer (runs in WiFi task)
- Actual processing moved to loop() in main task context
- Added CSIDataBuffer structure for safe cross-task communication
- Prevents race conditions and task priority issues
Logging improvements:
- Combined related config messages with newlines (reduces packets)
- Changed verbose logs to ESP_LOGV (state changes)
- Changed info logs to ESP_LOGD (initialization)
- Only warn if CSI fails to initialize
- Removed redundant setup message
Configuration:
- Removed cv.only_with_esp_idf restriction
- C++ guards (#ifdef USE_ESP_IDF) already handle this
- ESP32-S3 variant restriction remains (CSI requirement)
These changes ensure proper task safety and follow ESPHome
logging best practices for network efficiency.
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