Brian Hanson
4dae5804ab
Fan control rework (thermald → 4Hz):
- DT_TRML 0.5s → 0.25s (thermald loop + fan PID now at 4Hz)
- New clamp rules based on (gear, cruise_engaged, standstill):
parked → 0-100%
in drive + cruise engaged (any speed) → 30-100%
in drive + cruise off + standstill → 10-100%
in drive + cruise off + moving → 30-100%
- thermald now reads gearShifter (via carState) and controlsState.enabled,
passes them to fan_controller.update()
- Removed BENCH_MODE special case — new rules cover bench automatically
- Removed ignition-based branches — gear is the correct signal
System health overlay:
- Subscribed UI to peripheralState so we can read fanSpeedRpm
- Added FAN row: actual fan% (RPM / 65) to sit alongside LAG/DROP/TEMP/CPU/MEM.
Shows the real fan output vs. what the PID is asking for.
Migrate hot signals from paramsMemory to cereal (frogpilotCarControl):
- Added latRequested @3 and noLatLaneChange @4 to FrogPilotCarControl schema
- controlsd sets FPCC.latRequested / FPCC.noLatLaneChange (send-on-change
already gates the IPC)
- modeld reads from sm['frogpilotCarControl'] (added to its subscribers)
instead of paramsMemory (saves ~20 file-read syscalls/sec)
- carcontroller reads from frogpilot_variables (set in-process by controlsd)
instead of paramsMemory (saves ~100 file-read syscalls/sec in 100Hz path).
Dropped carcontroller's now-unused Params instance and import.
- UI (ui.cc, onroad.cc) reads from sm['frogpilotCarControl'].noLatLaneChange
- Removed LatRequested and no_lat_lane_change param registrations + defaults
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Car port structure
interface.py
Generic interface to send and receive messages from CAN (controlsd uses this to communicate with car)
fingerprints.py
Fingerprints for matching to a specific car
carcontroller.py
Builds CAN messages to send to car
carstate.py
Reads CAN from car and builds openpilot CarState message
values.py
Limits for actuation, general constants for cars, and supported car documentation
radar_interface.py
Interface for parsing radar points from the car