scott
75873dd4e0
- serial_port.py: replace termios/fcntl/select with pyserial wrapper, same SerialPort interface preserved for all other modules - workflow_serial.py: detect_serial_device() uses serial.tools.list_ports to enumerate COM ports; removes _fix_permissions() (not needed on Windows); multi-device table now shows port description - es24n_conf.py: enable VT/ANSI colour mode on Windows 10+ via ctypes; update docstring for Windows edition - requirements.txt: pyserial >= 3.5, pyinstaller >= 6.0 - es24n_conf.spec: PyInstaller single-file .exe spec Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
102 lines
3.5 KiB
Python
102 lines
3.5 KiB
Python
"""
|
|
serial_port.py — pyserial-backed 8N1 serial port for the Windows edition.
|
|
Exposes the same SerialPort interface as the TrueNAS/Linux edition so all
|
|
other modules work without modification.
|
|
"""
|
|
|
|
import time
|
|
from typing import Optional
|
|
|
|
import serial
|
|
|
|
|
|
class SerialPort:
|
|
def __init__(self, port: str, baudrate: int = 115200, timeout: float = 5.0):
|
|
self.port = port
|
|
self.baudrate = baudrate
|
|
self.timeout = timeout
|
|
self._ser: Optional[serial.Serial] = None
|
|
|
|
# ── Open / close ──────────────────────────────────────────────────────────
|
|
def open(self):
|
|
try:
|
|
self._ser = serial.Serial(
|
|
port = self.port,
|
|
baudrate = self.baudrate,
|
|
bytesize = serial.EIGHTBITS,
|
|
parity = serial.PARITY_NONE,
|
|
stopbits = serial.STOPBITS_ONE,
|
|
timeout = 0, # non-blocking reads; we poll manually
|
|
xonxoff = False,
|
|
rtscts = False,
|
|
dsrdtr = False,
|
|
)
|
|
except serial.SerialException as e:
|
|
raise OSError(f"Cannot open {self.port}: {e}") from e
|
|
|
|
def close(self):
|
|
if self._ser is not None:
|
|
try:
|
|
self._ser.close()
|
|
except Exception:
|
|
pass
|
|
finally:
|
|
self._ser = None
|
|
|
|
@property
|
|
def is_open(self) -> bool:
|
|
return self._ser is not None and self._ser.is_open
|
|
|
|
# ── Read / write ──────────────────────────────────────────────────────────
|
|
def write(self, data: bytes):
|
|
if self._ser is None:
|
|
raise OSError("Port is not open")
|
|
self._ser.write(data)
|
|
|
|
def read_chunk(self, size: int = 4096) -> bytes:
|
|
if self._ser is None:
|
|
raise OSError("Port is not open")
|
|
waiting = self._ser.in_waiting
|
|
if waiting:
|
|
return self._ser.read(min(size, waiting))
|
|
return b""
|
|
|
|
def read_until_quiet(self, quiet_period: float = 0.5,
|
|
timeout: Optional[float] = None) -> str:
|
|
"""
|
|
Read until no new bytes arrive for `quiet_period` seconds,
|
|
or until `timeout` (default: self.timeout) seconds have elapsed.
|
|
Pass a longer timeout for operations like curl that take more time.
|
|
"""
|
|
output = b""
|
|
deadline = time.monotonic() + (timeout if timeout is not None else self.timeout)
|
|
last_rx = time.monotonic()
|
|
|
|
while True:
|
|
now = time.monotonic()
|
|
if now >= deadline:
|
|
break
|
|
if output and (now - last_rx) >= quiet_period:
|
|
break
|
|
|
|
chunk = self.read_chunk()
|
|
if chunk:
|
|
output += chunk
|
|
last_rx = time.monotonic()
|
|
else:
|
|
time.sleep(0.05)
|
|
|
|
return output.decode("utf-8", errors="replace")
|
|
|
|
def send_line(self, cmd: str = "", delay: float = 0.3):
|
|
self.write((cmd + "\r\n").encode("utf-8"))
|
|
time.sleep(delay)
|
|
|
|
# ── Context manager ───────────────────────────────────────────────────────
|
|
def __enter__(self):
|
|
self.open()
|
|
return self
|
|
|
|
def __exit__(self, *_):
|
|
self.close()
|