Bluetooth services

Firmware-side Bluetooth management on top of the Bluetooth stack. More...

Modules
	Battery service
	Feeds the battery level to the BLE Battery Service.
	Heart rate sharing
	Shares heart rate over the BLE Heart Rate Service, with per-device user permission.
	Bluetooth control
	Start, stop and reset the Bluetooth stack.
	Bonding database
	Persistent BLE bondings, CCCDs and local Bluetooth settings.
	Bonding database debug
	Shell dumps of the bonding database.
	Bonding storage format
	On-flash layout of BLE pairing info in the bonding database.
	Device Information Service
	Contents of the BLE Device Information Service.
	Local address
	Cycling of the local resolvable private address, and the pinned address.
	Local identity
	Local device name and identity address.
	Pairability
	Reference-counted requests to be discoverable and pairable over BLE.
	BLE control endpoint
	Pebble Protocol endpoint letting the phone make the watch discoverable.

Detailed Description

Firmware-side Bluetooth management on top of the Bluetooth stack.

Covers starting and stopping the stack, the bonding database, the local identity and address, pairability, and the GATT services the firmware implements (battery, heart rate, device information).

The stack runs while it is enabled (by the runlevel system) and either airplane mode is off or the override forces it on:

bt_ctl_set_airplane_mode_async(false);
 
// Once the stack is up, be discoverable and pairable for a minute.
if (bt_ctl_is_bluetooth_running()) {
  bt_pairability_use_ble_for_period(60);
}