194 lines
6.6 KiB
Python
Executable file
194 lines
6.6 KiB
Python
Executable file
#!/usr/bin/env python
|
|
#
|
|
# Demonstrates the use of otatool.py, a tool for performing ota partition level
|
|
# operations.
|
|
#
|
|
# Copyright 2018 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.
|
|
import os
|
|
import sys
|
|
import subprocess
|
|
import argparse
|
|
import serial
|
|
import re
|
|
|
|
IDF_PATH = os.path.expandvars("$IDF_PATH")
|
|
|
|
OTATOOL_PY = os.path.join(IDF_PATH, "components", "app_update", "otatool.py")
|
|
ESPTOOL_PY = os.path.join(IDF_PATH, "components", "esptool_py", "esptool", "esptool.py")
|
|
|
|
INVOKE_ARGS = [sys.executable, OTATOOL_PY, "-q"]
|
|
|
|
|
|
def sized_file_compare(file1, file2):
|
|
with open(file1, "rb") as f1:
|
|
with open(file2, "rb") as f2:
|
|
f1 = f1.read()
|
|
f2 = f2.read()
|
|
|
|
if len(f1) < len(f2):
|
|
f2 = f2[:len(f1)]
|
|
else:
|
|
f1 = f1[:len(f2)]
|
|
|
|
return f1 == f2
|
|
|
|
|
|
def check(condition, message):
|
|
if not condition:
|
|
print("Error: " + message)
|
|
sys.exit(1)
|
|
|
|
|
|
def flash_example_firmware_to_ota_partitions(args):
|
|
# Invokes the command
|
|
#
|
|
# otatool.py -q write_ota_partition --slot <part_slot> or
|
|
# otatool.py -q write_ota_partition --name <part_name>
|
|
#
|
|
# to write the contents of a file to the specified ota partition (either using name or the slot number)
|
|
print("Writing factory firmware to ota_0")
|
|
invoke_args = INVOKE_ARGS + ["write_ota_partition", "--slot", "0", "--input", args.binary]
|
|
subprocess.check_call(invoke_args)
|
|
|
|
print("Writing factory firmware to ota_1")
|
|
invoke_args = INVOKE_ARGS + ["write_ota_partition", "--name", "ota_1", "--input", args.binary]
|
|
subprocess.check_call(invoke_args)
|
|
|
|
# Verify that the contents of the two ota slots are the same as that of the factory partition
|
|
print("Checking written firmware to ota_0 and ota_1 match factory firmware")
|
|
|
|
# Invokes the command
|
|
#
|
|
# otatool.py -q read_ota_partition --slot <part_slot> or
|
|
# otatool.py -q read_ota_partition --name <part_name>
|
|
#
|
|
# to read the contents of a specified ota partition (either using name or the slot number) and write to a file
|
|
invoke_args = INVOKE_ARGS + ["read_ota_partition", "--slot", "0", "--output", "app_0.bin"]
|
|
subprocess.check_call(invoke_args)
|
|
|
|
invoke_args = INVOKE_ARGS + ["read_ota_partition", "--name", "ota_1", "--output", "app_1.bin"]
|
|
subprocess.check_call(invoke_args)
|
|
|
|
ota_same = sized_file_compare("app_0.bin", args.binary)
|
|
check(ota_same, "Slot 0 app does not match factory app")
|
|
|
|
ota_same = sized_file_compare("app_1.bin", args.binary)
|
|
check(ota_same, "Slot 1 app does not match factory app")
|
|
|
|
|
|
def check_running_ota_partition(expected, port=None):
|
|
# Monitor the serial output of target device. The firmware outputs the currently
|
|
# running partition. It should match the partition the otatool switched to.
|
|
|
|
if expected == 0 or expected == "ota_0":
|
|
expected = b"ota_0"
|
|
elif expected == 1 or expected == "ota_1":
|
|
expected = b"ota_1"
|
|
else:
|
|
expected = b"factory"
|
|
|
|
sys.path.append(os.path.join(IDF_PATH, 'components', 'esptool_py', 'esptool'))
|
|
import esptool
|
|
|
|
baud = os.environ.get("ESPTOOL_BAUD", esptool.ESPLoader.ESP_ROM_BAUD)
|
|
|
|
if not port:
|
|
# Check what esptool.py finds on what port the device is connected to
|
|
output = subprocess.check_output([sys.executable, ESPTOOL_PY, "chip_id"])
|
|
pattern = r"Serial port ([\S]+)"
|
|
pattern = re.compile(pattern.encode())
|
|
port = re.search(pattern, output).group(1)
|
|
|
|
serial_instance = serial.serial_for_url(port.decode("utf-8"), baud, do_not_open=True)
|
|
|
|
serial_instance.dtr = False
|
|
serial_instance.rts = False
|
|
|
|
serial_instance.rts = True
|
|
serial_instance.open()
|
|
serial_instance.rts = False
|
|
|
|
# Read until example end and find the currently running partition string
|
|
content = serial_instance.read_until(b"Example end")
|
|
pattern = re.compile(b"Running partition: ([a-z0-9_]+)")
|
|
running = re.search(pattern, content).group(1)
|
|
|
|
check(expected == running, "Running partition %s does not match expected %s" % (running, expected))
|
|
|
|
|
|
def switch_partition(part, port):
|
|
if isinstance(part, int):
|
|
spec = "slot"
|
|
else:
|
|
spec = "name"
|
|
|
|
print("Switching to ota partition %s %s" % (spec, str(part)))
|
|
|
|
if str(part) == "factory":
|
|
# Invokes the command
|
|
#
|
|
# otatool.py -q erase_otadata
|
|
#
|
|
# to erase the otadata partition, effectively setting boot firmware to
|
|
# factory
|
|
subprocess.check_call(INVOKE_ARGS + ["erase_otadata"])
|
|
else:
|
|
# Invokes the command
|
|
#
|
|
# otatool.py -q switch_otadata --slot <part_slot> or
|
|
# otatool.py -q switch_otadata --name <part_name>
|
|
#
|
|
# to switch to the indicated ota partition (either using name or the slot number)
|
|
subprocess.check_call(INVOKE_ARGS + ["switch_otadata", "--" + spec, str(part)])
|
|
|
|
check_running_ota_partition(part, port)
|
|
|
|
|
|
def main():
|
|
global INVOKE_ARGS
|
|
|
|
parser = argparse.ArgumentParser("ESP-IDF OTA Tool Example")
|
|
|
|
parser.add_argument("--port", "-p", help="port where the device to perform operations on is connected")
|
|
parser.add_argument("--binary", "-b", help="path to built example binary", default=os.path.join("build", "otatool.bin"))
|
|
args = parser.parse_args()
|
|
|
|
if args.port:
|
|
INVOKE_ARGS += ["--port", args.port]
|
|
|
|
# Flash the factory firmware to all ota partitions
|
|
flash_example_firmware_to_ota_partitions(args)
|
|
|
|
# Perform switching ota partitions
|
|
switch_partition("factory", args.port)
|
|
switch_partition("factory", args.port) # check switching to factory partition twice in a row
|
|
|
|
switch_partition(0, args.port)
|
|
|
|
switch_partition("ota_1", args.port)
|
|
switch_partition(1, args.port) # check switching to ota_1 partition twice in a row
|
|
|
|
switch_partition("ota_0", args.port)
|
|
switch_partition(0, args.port) # check switching to ota_0 partition twice in a row
|
|
|
|
switch_partition("factory", args.port)
|
|
|
|
switch_partition(1, args.port) # check switching to ota_1 partition from factory
|
|
|
|
print("\nOTA tool operations executed successfully!")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|