This commit enable the BR/EDR pairing to run asynchronously to
the connection being established.
When in security mode 3, a controller shall start authentication as
part of the connection, which result in HCI events being sent on a BD
address without a completed connection (ie. no connection handle).
If characteristic supports Notify and Indicate, the prefer_notify option
will subscribe with Notify if True or Indicate if False.
If characteristic only supports one property, Notify or Indicate, that
mode will be selected, regardless of the prefer_notify setting.
Tested with a characteristic that supports both Notify and Indicate and
verified that prefer_notify sets the desired mode.
[85542e0] fix test
[3748781] add ASAH sink example
[e782e29] add app
[83daa30] wip
[7f138a0] add test
[f732108] allow different address syntax
[9d0bbf8] rename deprecated methods
[eb303d5] add LE CoC support
According to the specification nothing prevent the Host from creating
multiple connections at the same time. This commit add this mechanisme
by matching the `connection` and `connection_failure` events against the
peer address.
Subscribe command will enable notify or indicate events from the
characteristic, depending on supported characteristic properties, and
print received values to the output window.
Unsubscribe will stop notify or indicate events.
Rename find_attribute() to find_characteristic() and return a
characteristic for a set of UUIDS, a characteristic for an attribute
handle, or None.
Print read and received values has a hex string.
Add an unsubscribe implementation to gatt_client.py. Reset the CCCD bits
to 0x0000. Remove a matching subsciber, if one is provided. Otherwise
remove all subscribers for a characteristic, since no more notify or
indicates events will be comming.
authored-by: Michael Mogenson <mogenson@google.com>
* Connection implements async context manager to disconnect when
context is left
* The Connection only calls disconnect if the context manager exits
without an exception
* Peer implements async context manager to discover when entering the
context
* Device.connect_as_gatt implements an async context manager to nest the
connection and peer context managers
* Added HCI_StatusError that can be raised when a HCI Command Status
event is received that doesn't show "PENDING" as status
* Added Connection.sustain to wait for a timeout or disconnect
* Peer.sustain also maps to Connectin.sustain
* Updated battery_client.py to use .connect_as_gatt and .sustain
* Updated heart_rate_client.py to use .connect_as_gatt and .sustain
