openpilot/selfdrive/thermald/thermald.py

435 lines
18 KiB
Python
Executable File

#!/usr/bin/env python3
import datetime
import os
import time
from pathlib import Path
from typing import Dict, Optional, Tuple
import psutil
from smbus2 import SMBus
import cereal.messaging as messaging
from cereal import log
from common.filter_simple import FirstOrderFilter
from common.numpy_fast import clip, interp
from common.params import Params, ParamKeyType
from common.realtime import DT_TRML, sec_since_boot
from common.dict_helpers import strip_deprecated_keys
from selfdrive.controls.lib.alertmanager import set_offroad_alert
from selfdrive.hardware import EON, TICI, HARDWARE
from selfdrive.loggerd.config import get_available_percent
from selfdrive.pandad import get_expected_signature
from selfdrive.swaglog import cloudlog
from selfdrive.thermald.power_monitoring import PowerMonitoring
from selfdrive.version import get_git_branch, terms_version, training_version
FW_SIGNATURE = get_expected_signature()
ThermalStatus = log.DeviceState.ThermalStatus
NetworkType = log.DeviceState.NetworkType
NetworkStrength = log.DeviceState.NetworkStrength
CURRENT_TAU = 15. # 15s time constant
CPU_TEMP_TAU = 5. # 5s time constant
DAYS_NO_CONNECTIVITY_MAX = 7 # do not allow to engage after a week without internet
DAYS_NO_CONNECTIVITY_PROMPT = 4 # send an offroad prompt after 4 days with no internet
DISCONNECT_TIMEOUT = 5. # wait 5 seconds before going offroad after disconnect so you get an alert
prev_offroad_states: Dict[str, Tuple[bool, Optional[str]]] = {}
last_eon_fan_val = None
def read_tz(x):
if x is None:
return 0
try:
with open(f"/sys/devices/virtual/thermal/thermal_zone{x}/temp") as f:
return int(f.read())
except FileNotFoundError:
return 0
def read_thermal(thermal_config):
dat = messaging.new_message('deviceState')
dat.deviceState.cpuTempC = [read_tz(z) / thermal_config.cpu[1] for z in thermal_config.cpu[0]]
dat.deviceState.gpuTempC = [read_tz(z) / thermal_config.gpu[1] for z in thermal_config.gpu[0]]
dat.deviceState.memoryTempC = read_tz(thermal_config.mem[0]) / thermal_config.mem[1]
dat.deviceState.ambientTempC = read_tz(thermal_config.ambient[0]) / thermal_config.ambient[1]
dat.deviceState.batteryTempC = read_tz(thermal_config.bat[0]) / thermal_config.bat[1]
return dat
def setup_eon_fan():
os.system("echo 2 > /sys/module/dwc3_msm/parameters/otg_switch")
def set_eon_fan(val):
global last_eon_fan_val
if last_eon_fan_val is None or last_eon_fan_val != val:
bus = SMBus(7, force=True)
try:
i = [0x1, 0x3 | 0, 0x3 | 0x08, 0x3 | 0x10][val]
bus.write_i2c_block_data(0x3d, 0, [i])
except IOError:
# tusb320
if val == 0:
bus.write_i2c_block_data(0x67, 0xa, [0])
else:
bus.write_i2c_block_data(0x67, 0xa, [0x20])
bus.write_i2c_block_data(0x67, 0x8, [(val - 1) << 6])
bus.close()
last_eon_fan_val = val
# temp thresholds to control fan speed - high hysteresis
_TEMP_THRS_H = [50., 65., 80., 10000]
# temp thresholds to control fan speed - low hysteresis
_TEMP_THRS_L = [42.5, 57.5, 72.5, 10000]
# fan speed options
_FAN_SPEEDS = [0, 16384, 32768, 65535]
# max fan speed only allowed if battery is hot
_BAT_TEMP_THRESHOLD = 45.
def handle_fan_eon(max_cpu_temp, bat_temp, fan_speed, ignition):
new_speed_h = next(speed for speed, temp_h in zip(_FAN_SPEEDS, _TEMP_THRS_H) if temp_h > max_cpu_temp)
new_speed_l = next(speed for speed, temp_l in zip(_FAN_SPEEDS, _TEMP_THRS_L) if temp_l > max_cpu_temp)
if new_speed_h > fan_speed:
# update speed if using the high thresholds results in fan speed increment
fan_speed = new_speed_h
elif new_speed_l < fan_speed:
# update speed if using the low thresholds results in fan speed decrement
fan_speed = new_speed_l
if bat_temp < _BAT_TEMP_THRESHOLD:
# no max fan speed unless battery is hot
fan_speed = min(fan_speed, _FAN_SPEEDS[-2])
set_eon_fan(fan_speed // 16384)
return fan_speed
def handle_fan_uno(max_cpu_temp, bat_temp, fan_speed, ignition):
new_speed = int(interp(max_cpu_temp, [40.0, 80.0], [0, 80]))
if not ignition:
new_speed = min(30, new_speed)
return new_speed
def set_offroad_alert_if_changed(offroad_alert: str, show_alert: bool, extra_text: Optional[str]=None):
if prev_offroad_states.get(offroad_alert, None) == (show_alert, extra_text):
return
prev_offroad_states[offroad_alert] = (show_alert, extra_text)
set_offroad_alert(offroad_alert, show_alert, extra_text)
def thermald_thread():
pm = messaging.PubMaster(['deviceState'])
pandaState_timeout = int(1000 * 2.5 * DT_TRML) # 2.5x the expected pandaState frequency
pandaState_sock = messaging.sub_sock('pandaState', timeout=pandaState_timeout)
location_sock = messaging.sub_sock('gpsLocationExternal')
managerState_sock = messaging.sub_sock('managerState', conflate=True)
fan_speed = 0
count = 0
startup_conditions = {
"ignition": False,
}
startup_conditions_prev = startup_conditions.copy()
off_ts = None
started_ts = None
started_seen = False
thermal_status = ThermalStatus.green
usb_power = True
current_branch = get_git_branch()
network_type = NetworkType.none
network_strength = NetworkStrength.unknown
network_info = None
current_filter = FirstOrderFilter(0., CURRENT_TAU, DT_TRML)
cpu_temp_filter = FirstOrderFilter(0., CPU_TEMP_TAU, DT_TRML)
pandaState_prev = None
should_start_prev = False
handle_fan = None
is_uno = False
ui_running_prev = False
params = Params()
power_monitor = PowerMonitoring()
no_panda_cnt = 0
thermal_config = HARDWARE.get_thermal_config()
# CPR3 logging
if EON:
base_path = "/sys/kernel/debug/cpr3-regulator/"
cpr_files = [p for p in Path(base_path).glob("**/*") if p.is_file()]
cpr_files = ["/sys/kernel/debug/regulator/pm8994_s11/voltage"] + cpr_files
cpr_data = {}
for cf in cpr_files:
with open(cf, "r") as f:
try:
cpr_data[str(cf)] = f.read().strip()
except Exception:
pass
cloudlog.event("CPR", data=cpr_data)
while 1:
pandaState = messaging.recv_sock(pandaState_sock, wait=True)
msg = read_thermal(thermal_config)
if pandaState is not None:
usb_power = pandaState.pandaState.usbPowerMode != log.PandaState.UsbPowerMode.client
# If we lose connection to the panda, wait 5 seconds before going offroad
if pandaState.pandaState.pandaType == log.PandaState.PandaType.unknown:
no_panda_cnt += 1
if no_panda_cnt > DISCONNECT_TIMEOUT / DT_TRML:
if startup_conditions["ignition"]:
cloudlog.error("Lost panda connection while onroad")
startup_conditions["ignition"] = False
else:
no_panda_cnt = 0
startup_conditions["ignition"] = pandaState.pandaState.ignitionLine or pandaState.pandaState.ignitionCan
startup_conditions["hardware_supported"] = True #pandaState.pandaState.pandaType not in [log.PandaState.PandaType.whitePanda,
# log.PandaState.PandaType.greyPanda]
set_offroad_alert_if_changed("Offroad_HardwareUnsupported", not startup_conditions["hardware_supported"])
# Setup fan handler on first connect to panda
if handle_fan is None and pandaState.pandaState.pandaType != log.PandaState.PandaType.unknown:
is_uno = pandaState.pandaState.pandaType == log.PandaState.PandaType.uno
if (not EON) or is_uno:
cloudlog.info("Setting up UNO fan handler")
handle_fan = handle_fan_uno
else:
cloudlog.info("Setting up EON fan handler")
setup_eon_fan()
handle_fan = handle_fan_eon
# Handle disconnect
if pandaState_prev is not None:
if pandaState.pandaState.pandaType == log.PandaState.PandaType.unknown and \
pandaState_prev.pandaState.pandaType != log.PandaState.PandaType.unknown:
params.clear_all(ParamKeyType.CLEAR_ON_PANDA_DISCONNECT)
pandaState_prev = pandaState
# get_network_type is an expensive call. update every 10s
if (count % int(10. / DT_TRML)) == 0:
try:
network_type = HARDWARE.get_network_type()
network_strength = HARDWARE.get_network_strength(network_type)
network_info = HARDWARE.get_network_info() # pylint: disable=assignment-from-none
except Exception:
cloudlog.exception("Error getting network status")
msg.deviceState.freeSpacePercent = get_available_percent(default=100.0)
msg.deviceState.memoryUsagePercent = int(round(psutil.virtual_memory().percent))
msg.deviceState.cpuUsagePercent = int(round(psutil.cpu_percent()))
msg.deviceState.networkType = network_type
msg.deviceState.networkStrength = network_strength
if network_info is not None:
msg.deviceState.networkInfo = network_info
msg.deviceState.batteryPercent = HARDWARE.get_battery_capacity()
msg.deviceState.batteryStatus = HARDWARE.get_battery_status()
msg.deviceState.batteryCurrent = HARDWARE.get_battery_current()
msg.deviceState.batteryVoltage = HARDWARE.get_battery_voltage()
msg.deviceState.usbOnline = HARDWARE.get_usb_present()
# Fake battery levels on uno for frame
if (not EON) or is_uno:
msg.deviceState.batteryPercent = 100
msg.deviceState.batteryStatus = "Charging"
msg.deviceState.batteryTempC = 0
current_filter.update(msg.deviceState.batteryCurrent / 1e6)
# TODO: add car battery voltage check
max_cpu_temp = cpu_temp_filter.update(max(msg.deviceState.cpuTempC))
max_comp_temp = max(max_cpu_temp, msg.deviceState.memoryTempC, max(msg.deviceState.gpuTempC))
bat_temp = msg.deviceState.batteryTempC
if handle_fan is not None:
fan_speed = handle_fan(max_cpu_temp, bat_temp, fan_speed, startup_conditions["ignition"])
msg.deviceState.fanSpeedPercentDesired = fan_speed
# If device is offroad we want to cool down before going onroad
# since going onroad increases load and can make temps go over 107
# We only do this if there is a relay that prevents the car from faulting
is_offroad_for_5_min = (started_ts is None) and ((not started_seen) or (off_ts is None) or (sec_since_boot() - off_ts > 60 * 5))
if max_cpu_temp > 107. or bat_temp >= 63. or (is_offroad_for_5_min and max_cpu_temp > 70.0):
# onroad not allowed
thermal_status = ThermalStatus.danger
elif max_comp_temp > 96.0 or bat_temp > 60.:
# hysteresis between onroad not allowed and engage not allowed
thermal_status = clip(thermal_status, ThermalStatus.red, ThermalStatus.danger)
elif max_cpu_temp > 94.0:
# hysteresis between engage not allowed and uploader not allowed
thermal_status = clip(thermal_status, ThermalStatus.yellow, ThermalStatus.red)
elif max_cpu_temp > 80.0:
# uploader not allowed
thermal_status = ThermalStatus.yellow
elif max_cpu_temp > 75.0:
# hysteresis between uploader not allowed and all good
thermal_status = clip(thermal_status, ThermalStatus.green, ThermalStatus.yellow)
else:
thermal_status = ThermalStatus.green # default to good condition
# **** starting logic ****
# Check for last update time and display alerts if needed
now = datetime.datetime.utcnow()
# show invalid date/time alert
startup_conditions["time_valid"] = (now.year > 2020) or (now.year == 2020 and now.month >= 10)
set_offroad_alert_if_changed("Offroad_InvalidTime", (not startup_conditions["time_valid"]))
# Show update prompt
try:
last_update = datetime.datetime.fromisoformat(params.get("LastUpdateTime", encoding='utf8'))
except (TypeError, ValueError):
last_update = now
dt = now - last_update
update_failed_count = params.get("UpdateFailedCount")
update_failed_count = 0 if update_failed_count is None else int(update_failed_count)
last_update_exception = params.get("LastUpdateException", encoding='utf8')
if update_failed_count > 15 and last_update_exception is not None:
if current_branch in ["release2", "dashcam"]:
extra_text = "Ensure the software is correctly installed"
else:
extra_text = last_update_exception
set_offroad_alert_if_changed("Offroad_ConnectivityNeeded", False)
set_offroad_alert_if_changed("Offroad_ConnectivityNeededPrompt", False)
set_offroad_alert_if_changed("Offroad_UpdateFailed", True, extra_text=extra_text)
elif dt.days > DAYS_NO_CONNECTIVITY_MAX and update_failed_count > 1:
set_offroad_alert_if_changed("Offroad_UpdateFailed", False)
set_offroad_alert_if_changed("Offroad_ConnectivityNeededPrompt", False)
set_offroad_alert_if_changed("Offroad_ConnectivityNeeded", True)
elif dt.days > DAYS_NO_CONNECTIVITY_PROMPT:
remaining_time = str(max(DAYS_NO_CONNECTIVITY_MAX - dt.days, 0))
set_offroad_alert_if_changed("Offroad_UpdateFailed", False)
set_offroad_alert_if_changed("Offroad_ConnectivityNeeded", False)
set_offroad_alert_if_changed("Offroad_ConnectivityNeededPrompt", True, extra_text=f"{remaining_time} days.")
else:
set_offroad_alert_if_changed("Offroad_UpdateFailed", False)
set_offroad_alert_if_changed("Offroad_ConnectivityNeeded", False)
set_offroad_alert_if_changed("Offroad_ConnectivityNeededPrompt", False)
startup_conditions["up_to_date"] = params.get("Offroad_ConnectivityNeeded") is None or params.get_bool("DisableUpdates")
startup_conditions["not_uninstalling"] = not params.get_bool("DoUninstall")
startup_conditions["accepted_terms"] = params.get("HasAcceptedTerms") == terms_version
panda_signature = params.get("PandaFirmware")
startup_conditions["fw_version_match"] = (panda_signature is None) or (panda_signature == FW_SIGNATURE) # don't show alert is no panda is connected (None)
set_offroad_alert_if_changed("Offroad_PandaFirmwareMismatch", (not startup_conditions["fw_version_match"]))
# with 2% left, we killall, otherwise the phone will take a long time to boot
startup_conditions["free_space"] = msg.deviceState.freeSpacePercent > 2
startup_conditions["completed_training"] = params.get("CompletedTrainingVersion") == training_version or \
(current_branch in ['dashcam', 'dashcam-staging'])
startup_conditions["not_driver_view"] = not params.get_bool("IsDriverViewEnabled")
startup_conditions["not_taking_snapshot"] = not params.get_bool("IsTakingSnapshot")
# if any CPU gets above 107 or the battery gets above 63, kill all processes
# controls will warn with CPU above 95 or battery above 60
startup_conditions["device_temp_good"] = thermal_status < ThermalStatus.danger
set_offroad_alert_if_changed("Offroad_TemperatureTooHigh", (not startup_conditions["device_temp_good"]))
if TICI:
set_offroad_alert_if_changed("Offroad_NvmeMissing", (not Path("/data/media").is_mount()))
# Handle offroad/onroad transition
should_start = all(startup_conditions.values())
if should_start != should_start_prev or (count == 0):
params.put_bool("IsOffroad", not should_start)
HARDWARE.set_power_save(not should_start)
if TICI and not params.get_bool("EnableLteOnroad"):
fxn = "off" if should_start else "on"
os.system(f"nmcli radio wwan {fxn}")
if should_start:
off_ts = None
if started_ts is None:
started_ts = sec_since_boot()
started_seen = True
else:
if startup_conditions["ignition"] and (startup_conditions != startup_conditions_prev):
cloudlog.event("Startup blocked", startup_conditions=startup_conditions)
started_ts = None
if off_ts is None:
off_ts = sec_since_boot()
# Offroad power monitoring
power_monitor.calculate(pandaState)
msg.deviceState.offroadPowerUsageUwh = power_monitor.get_power_used()
msg.deviceState.carBatteryCapacityUwh = max(0, power_monitor.get_car_battery_capacity())
# Check if we need to disable charging (handled by boardd)
msg.deviceState.chargingDisabled = power_monitor.should_disable_charging(pandaState, off_ts)
# Check if we need to shut down
if power_monitor.should_shutdown(pandaState, off_ts, started_seen):
cloudlog.info(f"shutting device down, offroad since {off_ts}")
# TODO: add function for blocking cloudlog instead of sleep
time.sleep(10)
HARDWARE.shutdown()
# If UI has crashed, set the brightness to reasonable non-zero value
manager_state = messaging.recv_one_or_none(managerState_sock)
if manager_state is not None:
ui_running = "ui" in (p.name for p in manager_state.managerState.processes if p.running)
if ui_running_prev and not ui_running:
HARDWARE.set_screen_brightness(20)
ui_running_prev = ui_running
msg.deviceState.chargingError = current_filter.x > 0. and msg.deviceState.batteryPercent < 90 # if current is positive, then battery is being discharged
msg.deviceState.started = started_ts is not None
msg.deviceState.startedMonoTime = int(1e9*(started_ts or 0))
msg.deviceState.thermalStatus = thermal_status
pm.send("deviceState", msg)
if EON and not is_uno:
set_offroad_alert_if_changed("Offroad_ChargeDisabled", (not usb_power))
should_start_prev = should_start
startup_conditions_prev = startup_conditions.copy()
# report to server once every 10 minutes
if (count % int(600. / DT_TRML)) == 0:
if EON and started_ts is None and msg.deviceState.memoryUsagePercent > 40:
cloudlog.event("High offroad memory usage", mem=msg.deviceState.memoryUsagePercent)
location = messaging.recv_sock(location_sock)
cloudlog.event("STATUS_PACKET",
count=count,
pandaState=(strip_deprecated_keys(pandaState.to_dict()) if pandaState else None),
location=(strip_deprecated_keys(location.gpsLocationExternal.to_dict()) if location else None),
deviceState=strip_deprecated_keys(msg.to_dict()))
count += 1
def main():
thermald_thread()
if __name__ == "__main__":
main()