mirror of
https://github.com/espressif/esp-idf.git
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366 lines
14 KiB
Python
Executable File
366 lines
14 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# parttool is used to perform partition level operations - reading,
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# writing, erasing and getting info about the partition.
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#
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# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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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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# http:#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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from __future__ import division, print_function
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import argparse
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import os
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import re
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import subprocess
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import sys
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import tempfile
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import gen_esp32part as gen
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__version__ = '2.0'
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COMPONENTS_PATH = os.path.expandvars(os.path.join('$IDF_PATH', 'components'))
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ESPTOOL_PY = os.path.join(COMPONENTS_PATH, 'esptool_py', 'esptool', 'esptool.py')
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PARTITION_TABLE_OFFSET = 0x8000
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quiet = False
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def status(msg):
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if not quiet:
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print(msg)
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class _PartitionId():
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def __init__(self, name=None, p_type=None, subtype=None, part_list=None):
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self.name = name
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self.type = p_type
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self.subtype = subtype
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self.part_list = part_list
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class PartitionName(_PartitionId):
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def __init__(self, name):
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_PartitionId.__init__(self, name=name)
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class PartitionType(_PartitionId):
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def __init__(self, p_type, subtype, part_list=None):
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_PartitionId.__init__(self, p_type=p_type, subtype=subtype, part_list=part_list)
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PARTITION_BOOT_DEFAULT = _PartitionId()
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class ParttoolTarget():
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def __init__(self, port=None, baud=None, partition_table_offset=PARTITION_TABLE_OFFSET, partition_table_file=None,
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esptool_args=[], esptool_write_args=[], esptool_read_args=[], esptool_erase_args=[]):
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self.port = port
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self.baud = baud
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gen.offset_part_table = partition_table_offset
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def parse_esptool_args(esptool_args):
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results = list()
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for arg in esptool_args:
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pattern = re.compile(r'(.+)=(.+)')
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result = pattern.match(arg)
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try:
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key = result.group(1)
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value = result.group(2)
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results.extend(['--' + key, value])
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except AttributeError:
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results.extend(['--' + arg])
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return results
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self.esptool_args = parse_esptool_args(esptool_args)
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self.esptool_write_args = parse_esptool_args(esptool_write_args)
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self.esptool_read_args = parse_esptool_args(esptool_read_args)
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self.esptool_erase_args = parse_esptool_args(esptool_erase_args)
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if partition_table_file:
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partition_table = None
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with open(partition_table_file, 'rb') as f:
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input_is_binary = (f.read(2) == gen.PartitionDefinition.MAGIC_BYTES)
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f.seek(0)
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if input_is_binary:
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partition_table = gen.PartitionTable.from_binary(f.read())
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if partition_table is None:
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with open(partition_table_file, 'r') as f:
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f.seek(0)
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partition_table = gen.PartitionTable.from_csv(f.read())
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else:
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temp_file = tempfile.NamedTemporaryFile(delete=False)
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temp_file.close()
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try:
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self._call_esptool(['read_flash', str(partition_table_offset), str(gen.MAX_PARTITION_LENGTH), temp_file.name])
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with open(temp_file.name, 'rb') as f:
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partition_table = gen.PartitionTable.from_binary(f.read())
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finally:
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os.unlink(temp_file.name)
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self.partition_table = partition_table
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# set `out` to None to redirect the output to the STDOUT
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# otherwise set `out` to file descriptor
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# beware that the method does not close the file descriptor
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def _call_esptool(self, args, out=None):
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esptool_args = [sys.executable, ESPTOOL_PY] + self.esptool_args
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if self.port:
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esptool_args += ['--port', self.port]
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if self.baud:
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esptool_args += ['--baud', str(self.baud)]
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esptool_args += args
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print('Running %s...' % (' '.join(esptool_args)))
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try:
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subprocess.check_call(esptool_args, stdout=out, stderr=subprocess.STDOUT)
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except subprocess.CalledProcessError as e:
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print('An exception: **', str(e), '** occurred in _call_esptool.', file=out)
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raise e
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def get_partition_info(self, partition_id):
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partition = None
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if partition_id.name:
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partition = self.partition_table.find_by_name(partition_id.name)
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elif partition_id.type and partition_id.subtype:
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partition = list(self.partition_table.find_by_type(partition_id.type, partition_id.subtype))
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if not partition_id.part_list:
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partition = partition[0]
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else: # default boot partition
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search = ['factory'] + ['ota_{}'.format(d) for d in range(16)]
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for subtype in search:
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partition = next(self.partition_table.find_by_type('app', subtype), None)
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if partition:
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break
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if not partition:
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raise Exception('Partition does not exist')
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return partition
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def erase_partition(self, partition_id):
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partition = self.get_partition_info(partition_id)
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self._call_esptool(['erase_region', str(partition.offset), str(partition.size)] + self.esptool_erase_args)
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def read_partition(self, partition_id, output):
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partition = self.get_partition_info(partition_id)
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self._call_esptool(['read_flash', str(partition.offset), str(partition.size), output] + self.esptool_read_args)
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def write_partition(self, partition_id, input):
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self.erase_partition(partition_id)
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partition = self.get_partition_info(partition_id)
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with open(input, 'rb') as input_file:
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content_len = len(input_file.read())
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if content_len > partition.size:
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raise Exception('Input file size exceeds partition size')
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self._call_esptool(['write_flash', str(partition.offset), input] + self.esptool_write_args)
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def _write_partition(target, partition_id, input):
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target.write_partition(partition_id, input)
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partition = target.get_partition_info(partition_id)
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status("Written contents of file '{}' at offset 0x{:x}".format(input, partition.offset))
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def _read_partition(target, partition_id, output):
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target.read_partition(partition_id, output)
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partition = target.get_partition_info(partition_id)
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status("Read partition '{}' contents from device at offset 0x{:x} to file '{}'"
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.format(partition.name, partition.offset, output))
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def _erase_partition(target, partition_id):
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target.erase_partition(partition_id)
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partition = target.get_partition_info(partition_id)
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status("Erased partition '{}' at offset 0x{:x}".format(partition.name, partition.offset))
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def _get_partition_info(target, partition_id, info):
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try:
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partitions = target.get_partition_info(partition_id)
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if not isinstance(partitions, list):
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partitions = [partitions]
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except Exception:
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return
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infos = []
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try:
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for p in partitions:
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info_dict = {
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'name': '{}'.format(p.name),
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'type': '{}'.format(p.type),
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'subtype': '{}'.format(p.subtype),
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'offset': '0x{:x}'.format(p.offset),
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'size': '0x{:x}'.format(p.size),
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'encrypted': '{}'.format(p.encrypted)
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}
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for i in info:
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infos += [info_dict[i]]
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except KeyError:
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raise RuntimeError('Request for unknown partition info {}'.format(i))
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print(' '.join(infos))
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def main():
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global quiet
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parser = argparse.ArgumentParser('ESP-IDF Partitions Tool')
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parser.add_argument('--quiet', '-q', help='suppress stderr messages', action='store_true')
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parser.add_argument('--esptool-args', help='additional main arguments for esptool', nargs='+')
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parser.add_argument('--esptool-write-args', help='additional subcommand arguments when writing to flash', nargs='+')
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parser.add_argument('--esptool-read-args', help='additional subcommand arguments when reading flash', nargs='+')
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parser.add_argument('--esptool-erase-args', help='additional subcommand arguments when erasing regions of flash', nargs='+')
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# By default the device attached to the specified port is queried for the partition table. If a partition table file
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# is specified, that is used instead.
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parser.add_argument('--port', '-p', help='port where the target device of the command is connected to; the partition table is sourced from this device \
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when the partition table file is not defined')
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parser.add_argument('--baud', '-b', help='baudrate to use', type=int)
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parser.add_argument('--partition-table-offset', '-o', help='offset to read the partition table from', type=str)
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parser.add_argument('--partition-table-file', '-f', help='file (CSV/binary) to read the partition table from; \
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overrides device attached to specified port as the partition table source when defined')
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partition_selection_parser = argparse.ArgumentParser(add_help=False)
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# Specify what partition to perform the operation on. This can either be specified using the
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# partition name or the first partition that matches the specified type/subtype
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partition_selection_args = partition_selection_parser.add_mutually_exclusive_group()
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partition_selection_args.add_argument('--partition-name', '-n', help='name of the partition')
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partition_selection_args.add_argument('--partition-type', '-t', help='type of the partition')
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partition_selection_args.add_argument('--partition-boot-default', '-d', help='select the default boot partition \
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using the same fallback logic as the IDF bootloader', action='store_true')
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partition_selection_parser.add_argument('--partition-subtype', '-s', help='subtype of the partition')
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subparsers = parser.add_subparsers(dest='operation', help='run parttool -h for additional help')
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# Specify the supported operations
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read_part_subparser = subparsers.add_parser('read_partition', help='read partition from device and dump contents into a file',
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parents=[partition_selection_parser])
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read_part_subparser.add_argument('--output', help='file to dump the read partition contents to')
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write_part_subparser = subparsers.add_parser('write_partition', help='write contents of a binary file to partition on device',
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parents=[partition_selection_parser])
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write_part_subparser.add_argument('--input', help='file whose contents are to be written to the partition offset')
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subparsers.add_parser('erase_partition', help='erase the contents of a partition on the device', parents=[partition_selection_parser])
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print_partition_info_subparser = subparsers.add_parser('get_partition_info', help='get partition information', parents=[partition_selection_parser])
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print_partition_info_subparser.add_argument('--info', help='type of partition information to get',
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choices=['name', 'type', 'subtype', 'offset', 'size', 'encrypted'], default=['offset', 'size'], nargs='+')
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print_partition_info_subparser.add_argument('--part_list', help='Get a list of partitions suitable for a given type', action='store_true')
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args = parser.parse_args()
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quiet = args.quiet
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# No operation specified, display help and exit
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if args.operation is None:
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if not quiet:
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parser.print_help()
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sys.exit(1)
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# Prepare the partition to perform operation on
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if args.partition_name:
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partition_id = PartitionName(args.partition_name)
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elif args.partition_type:
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if not args.partition_subtype:
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raise RuntimeError('--partition-subtype should be defined when --partition-type is defined')
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partition_id = PartitionType(args.partition_type, args.partition_subtype, getattr(args, 'part_list', None))
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elif args.partition_boot_default:
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partition_id = PARTITION_BOOT_DEFAULT
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else:
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raise RuntimeError('Partition to operate on should be defined using --partition-name OR \
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partition-type,--partition-subtype OR partition-boot-default')
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# Prepare the device to perform operation on
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target_args = {}
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if args.port:
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target_args['port'] = args.port
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if args.baud:
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target_args['baud'] = args.baud
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if args.partition_table_file:
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target_args['partition_table_file'] = args.partition_table_file
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if args.partition_table_offset:
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target_args['partition_table_offset'] = int(args.partition_table_offset, 0)
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if args.esptool_args:
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target_args['esptool_args'] = args.esptool_args
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if args.esptool_write_args:
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target_args['esptool_write_args'] = args.esptool_write_args
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if args.esptool_read_args:
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target_args['esptool_read_args'] = args.esptool_read_args
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if args.esptool_erase_args:
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target_args['esptool_erase_args'] = args.esptool_erase_args
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target = ParttoolTarget(**target_args)
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# Create the operation table and execute the operation
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common_args = {'target':target, 'partition_id':partition_id}
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parttool_ops = {
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'erase_partition':(_erase_partition, []),
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'read_partition':(_read_partition, ['output']),
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'write_partition':(_write_partition, ['input']),
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'get_partition_info':(_get_partition_info, ['info'])
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}
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(op, op_args) = parttool_ops[args.operation]
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for op_arg in op_args:
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common_args.update({op_arg:vars(args)[op_arg]})
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if quiet:
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# If exceptions occur, suppress and exit quietly
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try:
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op(**common_args)
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except Exception:
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sys.exit(2)
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else:
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try:
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op(**common_args)
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except gen.InputError as e:
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print(e, file=sys.stderr)
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sys.exit(2)
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if __name__ == '__main__':
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main()
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