#!/usr/bin/env python3 # # Copyright 2021 - The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import asyncio import grpc from blueberry.facade.topshim import facade_pb2 from blueberry.facade.topshim import facade_pb2_grpc from blueberry.tests.topshim.lib.async_closable import AsyncClosable from google.protobuf import empty_pb2 as empty_proto class AdapterClient(AsyncClosable): """ Wrapper gRPC interface to the Topshim/BTIF layer """ # Timeout for async wait DEFAULT_TIMEOUT = 2 __task_list = [] __channel = None __adapter_stub = None __adapter_event_stream = None def __init__(self, port=8999): self.__channel = grpc.aio.insecure_channel("localhost:%d" % port) self.__adapter_stub = facade_pb2_grpc.AdapterServiceStub(self.__channel) self.__adapter_event_stream = self.__adapter_stub.FetchEvents(facade_pb2.FetchEventsRequest()) async def close(self): for task in self.__task_list: if task.done() or task.cancelled(): continue task.cancel() self.__task_list.clear() await self.__channel.close() async def __get_next_event(self, event, future): """Get the future of next event from the stream""" while True: e = await self.__adapter_event_stream.read() # Match event by some condition. if e.event_type == event: future.set_result(e.params) break else: print("Got '%s'; expecting '%s'" % (e.event_type, event)) print(e) async def _listen_for_event(self, event): """Start fetching events""" future = asyncio.get_running_loop().create_future() task = asyncio.get_running_loop().create_task(self.__get_next_event(event, future)) self.__task_list.append(task) try: await asyncio.wait_for(future, AdapterClient.DEFAULT_TIMEOUT) except: task.cancel() print("Failed to get event", event) return future async def _verify_adapter_started(self): future = await self._listen_for_event(facade_pb2.EventType.ADAPTER_STATE) params = future.result() return params["state"].data[0] == "ON" async def toggle_stack(self, is_start=True): """Enable/disable the stack""" await self.__adapter_stub.ToggleStack(facade_pb2.ToggleStackRequest(start_stack=is_start)) return await self._verify_adapter_started() async def enable_inquiry_scan(self): """Enable inquiry scan (Required to make device connectable and discoverable by other devices)""" await self.__adapter_stub.SetDiscoveryMode(facade_pb2.SetDiscoveryModeRequest(enable_inquiry_scan=True)) return await self._listen_for_event(facade_pb2.EventType.ADAPTER_PROPERTY) async def enable_page_scan(self): """Enable page scan (might be used for A2dp sink to be discoverable)""" await self.__adapter_stub.SetDiscoveryMode(facade_pb2.SetDiscoveryModeRequest(enable_page_scan=True)) return await self._listen_for_event(facade_pb2.EventType.ADAPTER_PROPERTY) async def disable_page_scan(self): """Enable page scan (might be used for A2dp sink to be discoverable)""" await self.__adapter_stub.SetDiscoveryMode(facade_pb2.SetDiscoveryModeRequest(enable_page_scan=False)) return await self._listen_for_event(facade_pb2.EventType.ADAPTER_PROPERTY) async def clear_event_filter(self): await self.__adapter_stub.ClearEventFilter(empty_proto.Empty()) async def clear_event_mask(self): await self.__adapter_stub.ClearEventMask(empty_proto.Empty()) async def clear_filter_accept_list(self): await self.__adapter_stub.ClearFilterAcceptList(empty_proto.Empty()) async def disconnect_all_acls(self): await self.__adapter_stub.DisconnectAllAcls(empty_proto.Empty()) async def le_rand(self): await self.__adapter_stub.LeRand(empty_proto.Empty()) future = await self._listen_for_event(facade_pb2.EventType.LE_RAND) params = future.result() return params["data"].data[0] async def restore_filter_accept_list(self): await self.__adapter_stub.RestoreFilterAcceptList(empty_proto.Empty()) async def set_default_event_mask_except(self, mask, le_mask): await self.__adapter_stub.SetDefaultEventMaskExcept( facade_pb2.SetDefaultEventMaskExceptRequest(mask=mask, le_mask=le_mask)) async def set_event_filter_inquiry_result_all_devices(self): await self.__adapter_stub.SetEventFilterInquiryResultAllDevices(empty_proto.Empty()) async def set_event_filter_connection_setup_all_devices(self): await self.__adapter_stub.SetEventFilterConnectionSetupAllDevices(empty_proto.Empty()) async def allow_wake_by_hid(self): await self.__adapter_stub.AllowWakeByHid(empty_proto.Empty()) async def set_local_io_caps(self, io_capability): await self.__adapter_stub.SetLocalIoCaps(facade_pb2.SetLocalIoCapsRequest(io_capability=io_capability)) return await self._listen_for_event(facade_pb2.EventType.ADAPTER_PROPERTY) async def toggle_discovery(self, is_start): await self.__adapter_stub.ToggleDiscovery(facade_pb2.ToggleDiscoveryRequest(is_start=is_start)) future = await self._listen_for_event(facade_pb2.EventType.DISCOVERY_STATE) return future async def find_device(self): return await self._listen_for_event(facade_pb2.EventType.DEVICE_FOUND) class A2dpAutomationHelper(): """Invoke gRPC on topshim for A2DP testing""" def __init__(self, port=8999): self.__channel = grpc.insecure_channel("localhost:%d" % port) self.media_stub = facade_pb2_grpc.MediaServiceStub(self.__channel) """Start A2dp source profile service""" def start_source(self): self.media_stub.StartA2dp(facade_pb2.StartA2dpRequest(start_a2dp_source=True)) """Start A2dp sink profile service""" def start_sink(self): self.media_stub.StartA2dp(facade_pb2.StartA2dpRequest(start_a2dp_sink=True)) """Initialize an A2dp connection from source to sink""" def source_connect_to_remote(self, address="11:22:33:44:55:66"): self.media_stub.A2dpSourceConnect(facade_pb2.A2dpSourceConnectRequest(address=address))