Connect and bond with a passkey

This commit adds the following:
    Passkey pairing - passkey is displayed on watch
    Swipe down to clear passkey screen
    Connection encryption
    Connection bonding
    Automatic reconnects to a bonded peripheral
    Trusted device on Android

Note that persisting the bond between reboots is NOT included in
this commit. Therefore, rebooting the watch will cause reconnect failures.
You must delete the bond from the phone to reconnect/pair.

1 files changed, 9 insertions, 2 deletions

diff --git a/src/components/ble/BleController.h b/src/components/ble/BleController.h
index 2cba26a..72b8766 100644
--- a/src/components/ble/BleController.h
+++ b/src/components/ble/BleController.h
@@ -9,7 +9,7 @@ namespace Pinetime {
     public:
       using BleAddress = std::array<uint8_t, 6>;
       enum class FirmwareUpdateStates { Idle, Running, Validated, Error };
-      enum class AddressTypes { Public, Random };
+      enum class AddressTypes { Public, Random, RPA_Public, RPA_Random };
 
       Ble() = default;
       bool IsConnected() const {
@@ -48,6 +48,12 @@ namespace Pinetime {
       void AddressType(AddressTypes t) {
         addressType = t;
       }
+      void SetPairingKey(uint32_t k) {
+        pairingKey = k;
+      }
+      uint32_t GetPairingKey() const {
+        return pairingKey;
+      }
 
     private:
       bool isConnected = false;
@@ -57,6 +63,7 @@ namespace Pinetime {
       FirmwareUpdateStates firmwareUpdateState = FirmwareUpdateStates::Idle;
       BleAddress address;
       AddressTypes addressType;
+      uint32_t pairingKey = 0;
     };
   }
-}
\ No newline at end of file
+}