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# Copyright 2023 Google LLC
#
# 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
#
# https://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.
# -----------------------------------------------------------------------------
# Imports
# -----------------------------------------------------------------------------
import asyncio
from typing import List, Optional
from bumble.controller import Controller
from bumble.link import LocalLink
from bumble.device import Device, Connection
from bumble.host import Host
from bumble.transport import AsyncPipeSink
from bumble.hci import Address
# -----------------------------------------------------------------------------
class TwoDevices:
connections: List[Optional[Connection]]
def __init__(self) -> None:
self.connections = [None, None]
self.link = LocalLink()
addresses = ['F0:F1:F2:F3:F4:F5', 'F5:F4:F3:F2:F1:F0']
self.controllers = [
Controller('C1', link=self.link, public_address=addresses[0]),
Controller('C2', link=self.link, public_address=addresses[1]),
]
self.devices = [
Device(
address=Address(addresses[0]),
host=Host(self.controllers[0], AsyncPipeSink(self.controllers[0])),
),
Device(
address=Address(addresses[1]),
host=Host(self.controllers[1], AsyncPipeSink(self.controllers[1])),
),
]
self.paired = [None, None]
def on_connection(self, which, connection):
self.connections[which] = connection
def on_paired(self, which, keys):
self.paired[which] = keys
async def setup_connection(self) -> None:
# Attach listeners
self.devices[0].on(
'connection', lambda connection: self.on_connection(0, connection)
)
self.devices[1].on(
'connection', lambda connection: self.on_connection(1, connection)
)
# Start
await self.devices[0].power_on()
await self.devices[1].power_on()
# Connect the two devices
await self.devices[0].connect(self.devices[1].random_address)
# Check the post conditions
assert self.connections[0] is not None
assert self.connections[1] is not None
def __getitem__(self, index: int) -> Device:
return self.devices[index]
# -----------------------------------------------------------------------------
async def async_barrier():
ready = asyncio.get_running_loop().create_future()
asyncio.get_running_loop().call_soon(ready.set_result, None)
await ready
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