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

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# 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 sys
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import re
import subprocess
import functools
import random
import tempfile
from serial.tools import list_ports
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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]+(.+)")
# /dev/ttyAMA0 port is listed in Raspberry Pi
# /dev/tty.Bluetooth-Incoming-Port port is listed in Mac
INVALID_PORT_PATTERN = re.compile(r"AMA|Bluetooth")
# if need to erase NVS partition in start app
ERASE_NVS = True
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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, erase_nvs=ERASE_NVS):
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"""
download and start app.
:param: erase_nvs: whether erase NVS partition during flash
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:return: None
"""
if erase_nvs:
address = self.partition_table["nvs"]["offset"]
size = self.partition_table["nvs"]["size"]
nvs_file = tempfile.NamedTemporaryFile()
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nvs_file.write(b'\xff' * size)
nvs_file.flush()
download_config = self.download_config + [address, nvs_file.name]
else:
download_config = self.download_config
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retry_baud_rates = ["921600", "115200"]
error = IDFToolError()
try:
for baud_rate in retry_baud_rates:
try:
subprocess.check_output(["python", self.app.esptool,
"--port", self.port, "--baud", baud_rate]
+ download_config)
break
except subprocess.CalledProcessError as error:
continue
else:
raise error
finally:
if erase_nvs:
nvs_file.close()
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@_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 erase_partition(self, partition):
"""
:param partition: partition name to erase
:return: None
"""
address = self.partition_table[partition]["offset"]
size = self.partition_table[partition]["size"]
with open(".erase_partition.tmp", "wb") as f:
f.write(chr(0xFF) * size)
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@_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]
)
@classmethod
def list_available_ports(cls):
ports = [x.device for x in list_ports.comports()]
espport = os.getenv('ESPPORT')
if not espport:
# It's a little hard filter out invalid port with `serial.tools.list_ports.grep()`:
# The check condition in `grep` is: `if r.search(port) or r.search(desc) or r.search(hwid)`.
# This means we need to make all 3 conditions fail, to filter out the port.
# So some part of the filters will not be straight forward to users.
# And negative regular expression (`^((?!aa|bb|cc).)*$`) is not easy to understand.
# Filter out invalid port by our own will be much simpler.
return [x for x in ports if not cls.INVALID_PORT_PATTERN.search(x)]
port_hint = espport.decode('utf8')
# If $ESPPORT is a valid port, make it appear first in the list
if port_hint in ports:
ports.remove(port_hint)
return [port_hint] + ports
# On macOS, user may set ESPPORT to /dev/tty.xxx while
# pySerial lists only the corresponding /dev/cu.xxx port
if sys.platform == 'darwin' and 'tty.' in port_hint:
port_hint = port_hint.replace('tty.', 'cu.')
if port_hint in ports:
ports.remove(port_hint)
return [port_hint] + ports
return ports