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97 lines
3.5 KiB
Python
97 lines
3.5 KiB
Python
# Copyright 2021-2022 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# -----------------------------------------------------------------------------
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# Imports
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# -----------------------------------------------------------------------------
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import asyncio
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import sys
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import os
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import logging
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from colors import color
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from bumble.device import Device, Peer
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from bumble.host import Host
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from bumble.transport import open_transport
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from bumble.utils import AsyncRunner
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from bumble import gatt
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# -----------------------------------------------------------------------------
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class Listener(Device.Listener):
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def __init__(self, device):
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self.device = device
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self.done = asyncio.get_running_loop().create_future()
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@AsyncRunner.run_in_task()
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async def on_connection(self, connection):
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print(f'=== Connected to {connection}')
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# Discover the Device Info service
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peer = Peer(connection)
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print('=== Discovering Device Info')
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await peer.discover_services([gatt.GATT_DEVICE_INFORMATION_SERVICE])
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# Check that the service was found
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device_info_services = peer.get_services_by_uuid(gatt.GATT_DEVICE_INFORMATION_SERVICE)
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if not device_info_services:
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print('!!! Service not found')
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return
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# Get the characteristics we want from the (first) device info service
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service = device_info_services[0]
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await peer.discover_characteristics([
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gatt.GATT_MANUFACTURER_NAME_STRING_CHARACTERISTIC
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], service)
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# Read the manufacturer name
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manufacturer_name = peer.get_characteristics_by_uuid(gatt.GATT_MANUFACTURER_NAME_STRING_CHARACTERISTIC, service)
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if manufacturer_name:
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value = await peer.read_value(manufacturer_name[0])
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print(color('Manufacturer Name:', 'green'), value.decode('utf-8'))
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else:
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print('>>> No manufacturer name')
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self.done.set_result(None)
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# -----------------------------------------------------------------------------
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async def main():
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if len(sys.argv) != 3:
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print('Usage: get_peer_device_info.py <transport-spec> <bluetooth-address>')
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print('example: get_peer_device_info.py usb:0 E1:CA:72:48:C4:E8')
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return
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print('<<< connecting to HCI...')
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packet_source, packet_sink = await open_transport(sys.argv[1])
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print('<<< connected')
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# Create a host using the packet source and sink as controller
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host = Host(controller_source=packet_source, controller_sink=packet_sink)
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# Create a device to manage the host, with a custom listener
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device = Device('Bumble', address = 'F0:F1:F2:F3:F4:F5', host = host)
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device.listener = Listener(device)
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await device.power_on()
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# Connect to a peer
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target_address = sys.argv[2]
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print(f'=== Connecting to {target_address}...')
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await device.connect(target_address)
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await device.listener.done
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# -----------------------------------------------------------------------------
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logging.basicConfig(level = os.environ.get('BUMBLE_LOGLEVEL', 'DEBUG').upper())
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asyncio.run(main())
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