mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-11-23 04:53:08 +00:00
2702c00ba4
* Scripts: OB recovery * Scripts: slightly different ob * Scripts: remove excessive return * Scripts: simplifying work with registers * Make PVS happy Co-authored-by: SG <who.just.the.doctor@gmail.com>
303 lines
10 KiB
Python
303 lines
10 KiB
Python
import logging
|
|
import os
|
|
import typing
|
|
from enum import Enum
|
|
|
|
from flipper.utils.programmer import Programmer
|
|
from flipper.utils.openocd import OpenOCD
|
|
from flipper.utils.stm32wb55 import STM32WB55
|
|
from flipper.assets.obdata import OptionBytesData
|
|
|
|
|
|
class OpenOCDProgrammerResult(Enum):
|
|
Success = 0
|
|
ErrorGeneric = 1
|
|
ErrorAlignment = 2
|
|
ErrorAlreadyWritten = 3
|
|
ErrorValidation = 4
|
|
|
|
|
|
class OpenOCDProgrammer(Programmer):
|
|
def __init__(
|
|
self,
|
|
interface: str = "interface/cmsis-dap.cfg",
|
|
port_base: typing.Union[int, None] = None,
|
|
serial: typing.Union[str, None] = None,
|
|
):
|
|
super().__init__()
|
|
|
|
config = {}
|
|
|
|
config["interface"] = interface
|
|
config["target"] = "target/stm32wbx.cfg"
|
|
|
|
if serial is not None:
|
|
if interface == "interface/cmsis-dap.cfg":
|
|
config["serial"] = f"cmsis_dap_serial {serial}"
|
|
elif "stlink" in interface:
|
|
config["serial"] = f"stlink_serial {serial}"
|
|
|
|
if port_base is not None:
|
|
config["port_base"] = port_base
|
|
|
|
self.openocd = OpenOCD(config)
|
|
self.logger = logging.getLogger()
|
|
|
|
def reset(self, mode: Programmer.RunMode = Programmer.RunMode.Run) -> bool:
|
|
stm32 = STM32WB55(self.openocd)
|
|
if mode == Programmer.RunMode.Run:
|
|
stm32.reset(stm32.RunMode.Run)
|
|
elif mode == Programmer.RunMode.Stop:
|
|
stm32.reset(stm32.RunMode.Init)
|
|
else:
|
|
raise Exception("Unknown mode")
|
|
|
|
return True
|
|
|
|
def flash(self, address: int, file_path: str, verify: bool = True) -> bool:
|
|
if not os.path.exists(file_path):
|
|
raise Exception(f"File {file_path} not found")
|
|
|
|
self.openocd.start()
|
|
self.openocd.send_tcl("init")
|
|
self.openocd.send_tcl(
|
|
f"program {file_path} 0x{address:08x}{' verify' if verify else ''} reset exit"
|
|
)
|
|
self.openocd.stop()
|
|
|
|
return True
|
|
|
|
def _ob_print_diff_table(self, ob_reference: bytes, ob_read: bytes, print_fn):
|
|
print_fn(
|
|
f'{"Reference": <20} {"Device": <20} {"Diff Reference": <20} {"Diff Device": <20}'
|
|
)
|
|
|
|
# Split into 8 byte, word + word
|
|
for i in range(0, len(ob_reference), 8):
|
|
ref = ob_reference[i : i + 8]
|
|
read = ob_read[i : i + 8]
|
|
|
|
diff_str1 = ""
|
|
diff_str2 = ""
|
|
for j in range(0, len(ref.hex()), 2):
|
|
byte_str_1 = ref.hex()[j : j + 2]
|
|
byte_str_2 = read.hex()[j : j + 2]
|
|
|
|
if byte_str_1 == byte_str_2:
|
|
diff_str1 += "__"
|
|
diff_str2 += "__"
|
|
else:
|
|
diff_str1 += byte_str_1
|
|
diff_str2 += byte_str_2
|
|
|
|
print_fn(
|
|
f"{ref.hex(): <20} {read.hex(): <20} {diff_str1: <20} {diff_str2: <20}"
|
|
)
|
|
|
|
def option_bytes_validate(self, file_path: str) -> bool:
|
|
# Registers
|
|
stm32 = STM32WB55(self.openocd)
|
|
|
|
# OpenOCD
|
|
self.openocd.start()
|
|
stm32.reset(stm32.RunMode.Init)
|
|
|
|
# Generate Option Bytes data
|
|
ob_data = OptionBytesData(file_path)
|
|
ob_values = ob_data.gen_values().export()
|
|
ob_reference = ob_values.reference
|
|
ob_compare_mask = ob_values.compare_mask
|
|
ob_length = len(ob_reference)
|
|
ob_words = int(ob_length / 4)
|
|
|
|
# Read Option Bytes
|
|
ob_read = bytes()
|
|
for i in range(ob_words):
|
|
addr = stm32.OPTION_BYTE_BASE + i * 4
|
|
value = self.openocd.read_32(addr)
|
|
ob_read += value.to_bytes(4, "little")
|
|
|
|
# Compare Option Bytes with reference by mask
|
|
ob_compare = bytes()
|
|
for i in range(ob_length):
|
|
ob_compare += bytes([ob_read[i] & ob_compare_mask[i]])
|
|
|
|
# Compare Option Bytes
|
|
return_code = False
|
|
|
|
if ob_reference == ob_compare:
|
|
self.logger.info("Option Bytes are valid")
|
|
return_code = True
|
|
else:
|
|
self.logger.error("Option Bytes are invalid")
|
|
self._ob_print_diff_table(ob_reference, ob_compare, self.logger.error)
|
|
|
|
# Stop OpenOCD
|
|
stm32.reset(stm32.RunMode.Run)
|
|
self.openocd.stop()
|
|
|
|
return return_code
|
|
|
|
def _unpack_u32(self, data: bytes, offset: int):
|
|
return int.from_bytes(data[offset : offset + 4], "little")
|
|
|
|
def option_bytes_set(self, file_path: str) -> bool:
|
|
# Registers
|
|
stm32 = STM32WB55(self.openocd)
|
|
|
|
# OpenOCD
|
|
self.openocd.start()
|
|
stm32.reset(stm32.RunMode.Init)
|
|
|
|
# Generate Option Bytes data
|
|
ob_data = OptionBytesData(file_path)
|
|
ob_values = ob_data.gen_values().export()
|
|
ob_reference_bytes = ob_values.reference
|
|
ob_compare_mask_bytes = ob_values.compare_mask
|
|
ob_write_mask_bytes = ob_values.write_mask
|
|
ob_length = len(ob_reference_bytes)
|
|
ob_dwords = int(ob_length / 8)
|
|
|
|
# Clear flash errors
|
|
stm32.clear_flash_errors()
|
|
|
|
# Unlock Flash and Option Bytes
|
|
stm32.flash_unlock()
|
|
stm32.option_bytes_unlock()
|
|
|
|
ob_need_to_apply = False
|
|
|
|
for i in range(ob_dwords):
|
|
device_addr = stm32.OPTION_BYTE_BASE + i * 8
|
|
device_value = self.openocd.read_32(device_addr)
|
|
ob_write_mask = self._unpack_u32(ob_write_mask_bytes, i * 8)
|
|
ob_compare_mask = self._unpack_u32(ob_compare_mask_bytes, i * 8)
|
|
ob_value_ref = self._unpack_u32(ob_reference_bytes, i * 8)
|
|
ob_value_masked = device_value & ob_compare_mask
|
|
|
|
need_patch = ((ob_value_masked ^ ob_value_ref) & ob_write_mask) != 0
|
|
if need_patch:
|
|
ob_need_to_apply = True
|
|
|
|
self.logger.info(
|
|
f"Need to patch: {device_addr:08X}: {ob_value_masked:08X} != {ob_value_ref:08X}, REG[{i}]"
|
|
)
|
|
|
|
# Check if this option byte (dword) is mapped to a register
|
|
device_reg_addr = stm32.option_bytes_id_to_address(i)
|
|
|
|
# Construct new value for the OB register
|
|
ob_value = device_value & (~ob_write_mask)
|
|
ob_value |= ob_value_ref & ob_write_mask
|
|
|
|
self.logger.info(f"Writing {ob_value:08X} to {device_reg_addr:08X}")
|
|
self.openocd.write_32(device_reg_addr, ob_value)
|
|
|
|
if ob_need_to_apply:
|
|
stm32.option_bytes_apply()
|
|
else:
|
|
self.logger.info("Option Bytes are already correct")
|
|
|
|
# Load Option Bytes
|
|
# That will reset and also lock the Option Bytes and the Flash
|
|
stm32.option_bytes_load()
|
|
|
|
# Stop OpenOCD
|
|
stm32.reset(stm32.RunMode.Run)
|
|
self.openocd.stop()
|
|
|
|
return True
|
|
|
|
def otp_write(self, address: int, file_path: str) -> OpenOCDProgrammerResult:
|
|
# Open file, check that it aligned to 8 bytes
|
|
with open(file_path, "rb") as f:
|
|
data = f.read()
|
|
if len(data) % 8 != 0:
|
|
self.logger.error(f"File {file_path} is not aligned to 8 bytes")
|
|
return OpenOCDProgrammerResult.ErrorAlignment
|
|
|
|
# Check that address is aligned to 8 bytes
|
|
if address % 8 != 0:
|
|
self.logger.error(f"Address {address} is not aligned to 8 bytes")
|
|
return OpenOCDProgrammerResult.ErrorAlignment
|
|
|
|
# Get size of data
|
|
data_size = len(data)
|
|
|
|
# Check that data size is aligned to 8 bytes
|
|
if data_size % 8 != 0:
|
|
self.logger.error(f"Data size {data_size} is not aligned to 8 bytes")
|
|
return OpenOCDProgrammerResult.ErrorAlignment
|
|
|
|
self.logger.debug(f"Writing {data_size} bytes to OTP at {address:08X}")
|
|
self.logger.debug(f"Data: {data.hex().upper()}")
|
|
|
|
# Start OpenOCD
|
|
self.openocd.start()
|
|
|
|
# Registers
|
|
stm32 = STM32WB55(self.openocd)
|
|
|
|
try:
|
|
# Check that OTP is empty for the given address
|
|
# Also check that data is already written
|
|
already_written = True
|
|
for i in range(0, data_size, 4):
|
|
file_word = int.from_bytes(data[i : i + 4], "little")
|
|
device_word = self.openocd.read_32(address + i)
|
|
if device_word != 0xFFFFFFFF and device_word != file_word:
|
|
self.logger.error(
|
|
f"OTP memory at {address + i:08X} is not empty: {device_word:08X}"
|
|
)
|
|
return OpenOCDProgrammerResult.ErrorAlreadyWritten
|
|
|
|
if device_word != file_word:
|
|
already_written = False
|
|
|
|
if already_written:
|
|
self.logger.info("OTP memory is already written with the given data")
|
|
return OpenOCDProgrammerResult.Success
|
|
|
|
self.reset(self.RunMode.Stop)
|
|
stm32.clear_flash_errors()
|
|
|
|
# Write OTP memory by 8 bytes
|
|
for i in range(0, data_size, 8):
|
|
word_1 = int.from_bytes(data[i : i + 4], "little")
|
|
word_2 = int.from_bytes(data[i + 4 : i + 8], "little")
|
|
self.logger.debug(
|
|
f"Writing {word_1:08X} {word_2:08X} to {address + i:08X}"
|
|
)
|
|
stm32.write_flash_64(address + i, word_1, word_2)
|
|
|
|
# Validate OTP memory
|
|
validation_result = True
|
|
|
|
for i in range(0, data_size, 4):
|
|
file_word = int.from_bytes(data[i : i + 4], "little")
|
|
device_word = self.openocd.read_32(address + i)
|
|
if file_word != device_word:
|
|
self.logger.error(
|
|
f"Validation failed: {file_word:08X} != {device_word:08X} at {address + i:08X}"
|
|
)
|
|
validation_result = False
|
|
finally:
|
|
# Stop OpenOCD
|
|
stm32.reset(stm32.RunMode.Run)
|
|
self.openocd.stop()
|
|
|
|
return (
|
|
OpenOCDProgrammerResult.Success
|
|
if validation_result
|
|
else OpenOCDProgrammerResult.ErrorValidation
|
|
)
|
|
|
|
def option_bytes_recover(self) -> bool:
|
|
try:
|
|
self.openocd.start()
|
|
stm32 = STM32WB55(self.openocd)
|
|
stm32.reset(stm32.RunMode.Halt)
|
|
stm32.option_bytes_recover()
|
|
return True
|
|
finally:
|
|
self.openocd.stop()
|