mirror of
https://github.com/trezor/trezor-firmware.git
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104 lines
3.2 KiB
Python
104 lines
3.2 KiB
Python
# hardware_ctl/relay_controller.py
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import logging
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import time
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import platform
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import subprocess
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import sys
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from typing import List, Optional, Set
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from pathlib import Path
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# Import Deditec drives
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from .deditec import DeditecBsWeu16
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class RelayController:
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DEDITEC_PORT = 9912
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MAX_PIN = 16 # Max PIN index (1-16)
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def __init__(self, ip_address: str):
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"""
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Initilize relay controller.
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Args:
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ip_address: Deditec board IP addres.
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"""
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self.ip_address = ip_address
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self.port = self.DEDITEC_PORT
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# Ping the device to check connectivity
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if not self.check_ping(self.ip_address):
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logging.warning("Ping to Deditec relay board failed. Network issue possible, but attempting TCP check.")
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self.deditec = DeditecBsWeu16(ip=self.ip_address, port=self.port)
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# Connect to deditec relay board
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if not self.deditec.connect():
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logging.error(f"Failed to connect to Deditec relay board at {self.ip_address}:{self.DEDITEC_PORT}.")
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sys.exit(1)
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def check_ping(self, ip: str) -> bool:
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""" Ping the given IP address """
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logging.info(f"Pinging {ip}...")
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system = platform.system().lower()
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if system == "windows":
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command = ["ping", "-n", "1", "-w", "1000", ip]
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else: # Linux, macOS
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command = ["ping", "-c", "1", "-W", "1", ip]
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try:
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process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
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stdout, stderr = process.communicate(timeout=3)
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return_code = process.returncode
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logging.debug(f"Ping stdout:\n{stdout}")
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if stderr: logging.debug(f"Ping stderr:\n{stderr}")
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if return_code == 0:
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if "unreachable" in stdout.lower() or "timed out" in stdout.lower() or "ttl expired" in stdout.lower():
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logging.error(f"Ping to {ip} technically succeeded (code 0) but output indicates failure.")
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return False
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logging.info(f"Ping to {ip} successful.")
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return True
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else:
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logging.error(f"Ping to {ip} failed (return code: {return_code}).")
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return False
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except FileNotFoundError:
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logging.error("Ping command not found. Install ping or check PATH. Skipping ping check.")
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return True
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except subprocess.TimeoutExpired:
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logging.error(f"Ping process to {ip} timed out.")
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return False
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except Exception as e:
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logging.error(f"Unknown error during ping check: {e}")
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return False
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def set_relay_off(self, pin: int) -> bool:
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if not self.deditec:
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logging.error("RelayController: Deditec not initialized.")
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return False
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return self.deditec.control_relay(pins_on=[], pins_off=[pin])
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def set_relay_on(self, pin: int) -> bool:
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if not self.deditec:
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logging.error("RelayController: Deditec not initialized.")
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return False
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return self.deditec.control_relay(pins_on=[pin], pins_off=[])
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def close(self):
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pass
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