Bluetooth profile managers just return an error if a profile interface is
not available. Doing so breaks the initialization and cleanup routines. This
patch changes the profile managers to still report an error, but signal
progress to the given result runnable.
All interfaces for Bluetooth profiles are now always available, so we
don't have to check for specific versions of Bluedroid. Instead, we
try to call the methods, and check their results.
The C++ compiler for Flatfish lacks support for initialized arrays of
C-string pointers. This patch fixes the problem by using a switch
statement for the string conversion of A2DP connection states.
The patch removes unused callbacks and helper runnables from the
Bluedroid implementation of BluetoothA2DPManager. It also removes
the last Bluedroid-specific code from BluetoothUtils.{cpp,h}.
The helper runnables where necessary to perform certain operations on
the main thread after having received a callback from Bluedroid. The
new notification methods already run on the main thread, so the helper
runnables can be replaced by direct calls.
This patch adds Bluetooth A2DP and AVRCP notifications to Gecko's
A2DP manager. The code has been taken from taken from the callback
implementations, and adapted to run on the main thread. No further
cleanups have been applied.
This patch converts Bluedroid status codes in Gecko to the
backend-neutral data type |BluetoothStatus|. All error handlers
have been adapted. The Bluedroid type |bt_status_t| only remains
in |BluetoothInterface|.
Profile managers use the new class |BluetoothProfileResultHandler|
to signal the result of initializing of cleaning up operations to
|BluetoothServiceBluedroid|. |BluetoothServiceBluedroid| proceeds
once all profile handlers have finished.
Future patches will build upon this patch to create completely
asynchronous profile managers.
In BluetoothProfileController, it's meaningless to separate OnConnect
and OnDisconnect since the following steps would be the same for both
cases. Therefore I introduced a function called NotifyCompletion() for
each profile manager to report the completion of connecting/disconnecting
operations.