Status: Basic port incl. all examples. BTstack runs on dedicated FreeRTOS thread. Multi threading (calling BTstack functions from a different thread) is not supported.
The script will copy parts of the BTstack tree into the ESP-IDF as $IDF_PATH/components/btstack and then create project folders for all examples.
Each example project folder, e.g. port/esp32/examples/spp_and_le_counter, contains a Makefile. Please run the command again after updating the BTstack tree (e.g. by git pull) to also update the copy in the ESP-IDF.
The Link Layer in the ESP32 does not reset the supervision timeout while the Host does not accept new packets (due to slow processing etc..), which will eventually triggger a disconnect based on Connection Timeout (reason 8). See https://github.com/espressif/esp-idf/issues/644#issuecomment-325251315
BTstack is not thread-safe, but you're using a multi-threading OS. Any function that is called from BTstack, e.g. packet handlers, can directly call into BTstack without issues. For other situations, you need to provide some general 'do BTstack tasks' function and trigger BTstack to execute it on its own thread.
- *btstack_run_loop_freertos_execute_code_on_main_thread* allows to directly schedule a function callback, i.e. 'do BTstack tasks' function, from the BTstack thread.
Set 'do BTstack tasks' function as its process function and enable its polling callback (DATA_SOURCE_CALLBACK_POLL). The process function will be called in every iteration of the BTstack Run Loop. To trigger a run loop iteration, you can call *btstack_run_loop_freertos_trigger*.
The 'run on main thread' method is only provided by a few ports and requires a queue to store the calls. This should be used with care, since calling it multiple times could cause the queue to overflow.
