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123 lines
4.4 KiB
Python
123 lines
4.4 KiB
Python
# SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
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# SPDX-License-Identifier: Apache-2.0
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import json
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import logging
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import os
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import tempfile
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from typing import Any
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import espefuse
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import pytest
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from _pytest.fixtures import FixtureRequest
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from _pytest.monkeypatch import MonkeyPatch
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from pytest_embedded_idf.app import FlashFile
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from pytest_embedded_idf.serial import IdfSerial
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# This is a custom IdfSerial class to support custom functionality
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# which is required only for this test
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class EfuseFlashEncSerial(IdfSerial):
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@IdfSerial.use_esptool()
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def write_flash_no_enc(self) -> None:
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self.app.flash_settings['encrypt'] = False
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flash_files = []
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for file in self.app.flash_files:
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# Set encrypted flag to false for each file.
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flash_files.append(file._replace(encrypted=False))
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# Replace the original tuple with modified tuple with all the files marked as unencrypted.
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self.app.flash_files = tuple(flash_files)
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# Now flash the files
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self.flash()
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def bootloader_flash(self) -> None:
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"""
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Flash bootloader.
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:return: None
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"""
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logging.info('Flashing bootloader')
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bootloader_path = os.path.join(self.app.binary_path, 'bootloader', 'bootloader.bin')
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offs = int(self.app.sdkconfig.get('BOOTLOADER_OFFSET_IN_FLASH', 0))
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logging.info('bootloader offset is {0}'.format(hex(offs)))
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prev_flash_files = self.app.flash_files
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flash_files = []
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flash_files.append(
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FlashFile(
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offs,
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bootloader_path,
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False,
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)
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)
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self.app.flash_files = flash_files
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self.app.flash_settings['encrypt'] = False
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self.flash()
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# Restore self.app.flash files to original value
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self.app.flash_files = prev_flash_files
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def erase_field_on_emul_efuse_by_name(self, efuse_names: list) -> None:
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pos_of_bits = []
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for name in efuse_names:
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pos_of_bits.append(self.get_efuse_offset(name))
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self.erase_field_on_emul_efuse(pos_of_bits)
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def erase_field_on_emul_efuse(self, pos_of_bits: list) -> None:
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emul_efuse_bin_path = os.path.join(self.app.binary_path, 'emul_efuse.bin')
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self.dump_flash(output=emul_efuse_bin_path, partition='emul_efuse')
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logging.info('Erasing field on emulated efuse')
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def erase_bit(pos_of_bit: int) -> None:
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nbytes, nbits = divmod(pos_of_bit, 8)
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with open(emul_efuse_bin_path, 'r+b') as f:
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f.seek(nbytes)
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data = ord(f.read(1))
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data &= ~(1 << nbits)
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f.seek(-1, os.SEEK_CUR)
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f.write(bytes([data]))
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for pos_of_bit in sorted(pos_of_bits):
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erase_bit(pos_of_bit)
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offs = self.app.partition_table['emul_efuse']['offset']
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logging.info('emul efuse offset is {0}'.format(hex(offs)))
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prev_flash_files = self.app.flash_files
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flash_files = []
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flash_files.append(
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FlashFile(
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offs,
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emul_efuse_bin_path,
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False,
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)
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)
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self.app.flash_files = flash_files
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self.app.flash_settings['encrypt'] = False
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self.flash()
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self.app.flash_files = prev_flash_files
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def get_efuse_offset(self, efuse_name: str) -> Any:
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with tempfile.NamedTemporaryFile(suffix='.json') as temp_file:
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temp_file_path = temp_file.name
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espefuse.main(f'--virt -c {self.target} summary --format json --file {temp_file_path}'.split())
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with open(temp_file_path, 'r', encoding='utf-8') as file:
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efuse_summary = json.load(file)
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if efuse_name in efuse_summary:
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data = efuse_summary[efuse_name]
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offset = int(data['word'] * 32) + data['pos']
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print(f'{efuse_name} offset = {offset}')
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return offset
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else:
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raise ValueError(f"eFuse '{efuse_name}' not found in the summary.")
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@pytest.fixture(scope='module')
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def monkeypatch_module(request: FixtureRequest) -> MonkeyPatch:
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mp = MonkeyPatch()
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request.addfinalizer(mp.undo)
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return mp
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@pytest.fixture(scope='module', autouse=True)
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def replace_dut_class(monkeypatch_module: MonkeyPatch) -> None:
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monkeypatch_module.setattr('pytest_embedded_idf.IdfSerial', EfuseFlashEncSerial)
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