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# Copyright 2021-2023 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 logging
import asyncio
import os
import click
from bumble import transport
from bumble.host import Host
from bumble.drivers import rtk
# -----------------------------------------------------------------------------
# Logging
# -----------------------------------------------------------------------------
logger = logging.getLogger(__name__)
# -----------------------------------------------------------------------------
def do_parse(firmware_path):
with open(firmware_path, 'rb') as firmware_file:
firmware_data = firmware_file.read()
firmware = rtk.Firmware(firmware_data)
print(
f"Firmware: version=0x{firmware.version:08X} "
f"project_id=0x{firmware.project_id:04X}"
)
for patch in firmware.patches:
print(
f" Patch: chip_id=0x{patch[0]:04X}, "
f"{len(patch[1])} bytes, "
f"SVN Version={patch[2]:08X}"
)
# -----------------------------------------------------------------------------
async def do_load(usb_transport, force):
async with await transport.open_transport_or_link(usb_transport) as (
hci_source,
hci_sink,
):
# Create a host to communicate with the device
host = Host(hci_source, hci_sink)
await host.reset(driver_factory=None)
# Get the driver.
driver = await rtk.Driver.for_host(host, force)
if driver is None:
print("Firmware already loaded or no supported driver for this device.")
return
await driver.download_firmware()
# -----------------------------------------------------------------------------
async def do_drop(usb_transport):
async with await transport.open_transport_or_link(usb_transport) as (
hci_source,
hci_sink,
):
# Create a host to communicate with the device
host = Host(hci_source, hci_sink)
await host.reset(driver_factory=None)
# Tell the device to reset/drop any loaded patch
await rtk.Driver.drop_firmware(host)
# -----------------------------------------------------------------------------
async def do_info(usb_transport, force):
async with await transport.open_transport(usb_transport) as (
hci_source,
hci_sink,
):
# Create a host to communicate with the device
host = Host(hci_source, hci_sink)
await host.reset(driver_factory=None)
# Check if this is a supported device.
if not force and not rtk.Driver.check(host):
print("USB device not supported by this RTK driver")
return
# Get the driver info.
driver_info = await rtk.Driver.driver_info_for_host(host)
if driver_info:
print(
"Driver:\n"
f" ROM: {driver_info.rom:04X}\n"
f" Firmware: {driver_info.fw_name}\n"
f" Config: {driver_info.config_name}\n"
)
else:
print("Firmware already loaded or no supported driver for this device.")
# -----------------------------------------------------------------------------
@click.group()
def main():
logging.basicConfig(level=os.environ.get('BUMBLE_LOGLEVEL', 'INFO').upper())
@main.command
@click.argument("firmware_path")
def parse(firmware_path):
"""Parse a firmware image."""
do_parse(firmware_path)
@main.command
@click.argument("usb_transport")
@click.option(
"--force",
is_flag=True,
default=False,
help="Load even if the USB info doesn't match",
)
def load(usb_transport, force):
"""Load a firmware image into the USB dongle."""
asyncio.run(do_load(usb_transport, force))
@main.command
@click.argument("usb_transport")
def drop(usb_transport):
"""Drop a firmware image from the USB dongle."""
asyncio.run(do_drop(usb_transport))
@main.command
@click.argument("usb_transport")
@click.option(
"--force",
is_flag=True,
default=False,
help="Try to get the device info even if the USB info doesn't match",
)
def info(usb_transport, force):
"""Get the firmware info from a USB dongle."""
asyncio.run(do_info(usb_transport, force))
# -----------------------------------------------------------------------------
if __name__ == '__main__':
main()
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