OVMS3-idf/tools/tiny-test-fw/IDF/IDFDUT.py

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2017-10-10 02:44:55 +00:00
# Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
#
# 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.
""" DUT for IDF applications """
import os
import re
import subprocess
import functools
import DUT
class IDFToolError(OSError):
pass
def _tool_method(func):
""" close port, execute tool method and then reopen port """
@functools.wraps(func)
def handler(self, *args, **kwargs):
self.close()
ret = func(self, *args, **kwargs)
self.open()
return ret
return handler
class IDFDUT(DUT.SerialDUT):
""" IDF DUT, extends serial with ESPTool methods """
CHIP_TYPE_PATTERN = re.compile(r"Detecting chip type[.:\s]+(.+)")
def __init__(self, name, port, log_file, app, **kwargs):
self.download_config, self.partition_table = app.process_app_info()
super(IDFDUT, self).__init__(name, port, log_file, app, **kwargs)
@classmethod
def get_chip(cls, app, port):
"""
get chip id via esptool
:param app: application instance (to get tool)
:param port: comport
:return: chip ID or None
"""
try:
output = subprocess.check_output(["python", app.esptool, "--port", port, "chip_id"])
except subprocess.CalledProcessError:
output = bytes()
if isinstance(output, bytes):
output = output.decode()
chip_type = cls.CHIP_TYPE_PATTERN.search(output)
return chip_type.group(1) if chip_type else None
@classmethod
def confirm_dut(cls, port, app, **kwargs):
return cls.get_chip(app, port) is not None
@_tool_method
def start_app(self):
"""
download and start app.
:return: None
"""
retry_baud_rates = ["921600", "115200"]
error = IDFToolError()
for baud_rate in retry_baud_rates:
try:
subprocess.check_output(["python", self.app.esptool,
"--port", self.port, "--baud", baud_rate]
+ self.download_config)
break
except subprocess.CalledProcessError as error:
continue
else:
raise error
@_tool_method
def reset(self):
"""
reset DUT with esptool
:return: None
"""
subprocess.check_output(["python", self.app.esptool, "--port", self.port, "run"])
@_tool_method
def dump_flush(self, output_file, **kwargs):
"""
dump flush
:param output_file: output file name, if relative path, will use sdk path as base path.
:keyword partition: partition name, dump the partition.
``partition`` is preferred than using ``address`` and ``size``.
:keyword address: dump from address (need to be used with size)
:keyword size: dump size (need to be used with address)
:return: None
"""
if os.path.isabs(output_file) is False:
output_file = os.path.relpath(output_file, self.app.get_log_folder())
if "partition" in kwargs:
partition = self.partition_table[kwargs["partition"]]
_address = partition["offset"]
_size = partition["size"]
elif "address" in kwargs and "size" in kwargs:
_address = kwargs["address"]
_size = kwargs["size"]
else:
raise IDFToolError("You must specify 'partition' or ('address' and 'size') to dump flash")
subprocess.check_output(
["python", self.app.esptool, "--port", self.port, "--baud", "921600",
"--before", "default_reset", "--after", "hard_reset", "read_flash",
_address, _size, output_file]
)