nimble WIP - writes kinda work now

src/nimble/BluetoothUtil.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <functional>
+
+#include "SimpleAllocator.h"
+#include <Arduino.h>
+#include <BLEDevice.h>
+#include <BLEServer.h>
+#include <BLEUtils.h>
+
+#ifdef CONFIG_BLUEDROID_ENABLED
+
+// Help routine to add a description to any BLECharacteristic and add it to the service
+void addWithDesc(BLEService *service, BLECharacteristic *c, const char *description);
+
+void dumpCharacteristic(BLECharacteristic *c);
+
+/** converting endianness pull out a 32 bit value */
+uint32_t getValue32(BLECharacteristic *c, uint32_t defaultValue);
+
+// TODO(girts): create a class for the bluetooth utils helpers?
+using StartBluetoothPinScreenCallback = std::function<void(uint32_t pass_key)>;
+using StopBluetoothPinScreenCallback = std::function<void(void)>;
+
+BLEServer *initBLE(StartBluetoothPinScreenCallback startBtPinScreen, StopBluetoothPinScreenCallback stopBtPinScreen,
+                   std::string devName, std::string hwVendor, std::string swVersion, std::string hwVersion = "");
+
+/// Add a characteristic that we will delete when we restart
+BLECharacteristic *addBLECharacteristic(BLECharacteristic *c);
+
+/// Add a characteristic that we will delete when we restart
+BLEDescriptor *addBLEDescriptor(BLEDescriptor *c);
+
+/// Any bluetooth objects you allocate _must_ come from this pool if you want to be able to call deinitBLE()
+extern SimpleAllocator btPool;
+
+#endif
+
+/// Given a level between 0-100, update the BLE attribute
+void updateBatteryLevel(uint8_t level);
+void deinitBLE();
+void loopBLE();
+void reinitBluetooth();