pebble/tools/pulse_read.py

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#!/usr/bin/env python
# Copyright 2024 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
#
# 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.
from __future__ import print_function
import argparse
import logging
import pulse
import sys
def auto_int(num):
return int(num, 0)
def main():
parser = argparse.ArgumentParser(description="A tool to load binary data from Pebble.")
parser.add_argument('-v', '--verbose', action='store_true', help='print verbose status output')
parser.add_argument('-p', '--progress', action='store_true', help='print progress output')
parser.add_argument('--operation', choices=['read', 'stat'], default='read')
parser.add_argument('-o', '--out', help='filename to write', default=sys.stdout,
type=argparse.FileType('wb', 0))
parser.add_argument('tty', metavar='TTY', help='the target serial port')
subparsers = parser.add_subparsers(help='commands', dest='domain')
external_flash_parser = subparsers.add_parser('external-flash')
external_flash_parser.add_argument('offset', help='offset to read from', type=auto_int)
external_flash_parser.add_argument('length', help='length to read', type=auto_int)
memory_parser = subparsers.add_parser('memory')
memory_parser.add_argument('offset', metavar='address', help='address to read from',
type=auto_int)
memory_parser.add_argument('length', help='length to read', type=auto_int)
coredump_parser = subparsers.add_parser('coredump')
coredump_parser.add_argument('identifier', metavar='slot',
help='slot index to retrieve coredump from', type=int)
pfs_parser = subparsers.add_parser('pfs')
pfs_parser.add_argument('identifier', metavar='filename', help='filename of file to retrieve')
framebuffer_parser = subparsers.add_parser('framebuffer')
args = parser.parse_args()
if args.verbose:
logging.basicConfig(level=logging.INFO)
else:
logging.basicConfig(level=logging.WARNING)
args.domain = args.domain.replace('-', '_')
with pulse.Connection.open_dbgserial(args.tty) as connection:
connection.change_baud_rate(921600)
try:
method = getattr(connection.read, '_'.join((args.operation, args.domain)))
except AttributeError:
print("Domain {!r} doesn't support method {!r}".format(args.domain, args.operation),
file=sys.stderr)
sys.exit(1)
call_arg_keys = ['offset', 'length', 'identifier']
call_args = {arg: vars(args)[arg] for arg in call_arg_keys if arg in args}
data = method(**call_args)
if args.operation == 'stat':
data = str(data) + '\n'
args.out.write(data)
if __name__ == '__main__':
main()