[pull] master from espressif:master #5
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* Update esp32-hal-bt.c BluetoothSerial crash when restart: this is because the BT controller remains in state ESP_BT_CONTROLLER_STATUS_INITED instead of state ESP_BT_CONTROLLER_STATUS_IDLE after the end() method. in file esp_bt.h it is specified > @brief Enable BT controller. > Due to a known issue, you cannot call esp_bt_controller_enable() a second time > to change the controller mode dynamically. To change controller mode, call > esp_bt_controller_disable() and then call esp_bt_controller_enable() with the new mode. after **esp_bt_controller_disable()** the controller remains in state INITED so we do call the **esp_bt_controller_deinit()** function to put the controller into state IDLE. i have modified the **esp32-hal-bt.c** file line 57 and next (i have insert the esp_bt_controller_deinit() function so the controller go into Idle state) ```c++ bool btStop(){ if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_IDLE){ log_i("bt stopped"); return true; } if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_ENABLED){ log_i("bt enabled"); if (esp_bt_controller_disable()) { log_e("BT Disable failed"); return false; } while(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_ENABLED); } if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_INITED){ log_i("inited"); if (esp_bt_controller_deinit()) { log_e("BT deint failed"); return false; } while (esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_INITED); return true; } log_e("BT Stop failed"); return false; } ``` * Update esp32-hal-bt.c remove while to avoid infinite loop
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