public void programThresholds(ThermalSensor s) {
if (s == null) return;
int zoneState = getZoneState();
if (zoneState == ThermalManager.THERMAL_STATE_OFF) return;
int lowerTripPoint = ThermalUtils.getLowerThresholdTemp(zoneState, getZoneTempThreshold());
int upperTripPoint = ThermalUtils.getUpperThresholdTemp(zoneState, getZoneTempThreshold());
if (lowerTripPoint != ThermalManager.INVALID_TEMP
&& upperTripPoint != ThermalManager.INVALID_TEMP) {
if (ThermalUtils.writeSysfs(s.getSensorLowTempPath(), lowerTripPoint) == -1) {
Log.i(
TAG,
"error while programming lower trip point:"
+ lowerTripPoint
+ "for sensor:"
+ s.getSensorName());
}
if (ThermalUtils.writeSysfs(s.getSensorHighTempPath(), upperTripPoint) == -1) {
Log.i(
TAG,
"error while programming upper trip point:"
+ upperTripPoint
+ "for sensor:"
+ s.getSensorName());
}
}
}
@Override
public void onUEvent(UEventObserver.UEvent event) {
String sensorName;
int sensorTemp, errorVal, eventType = -1;
ThermalZone zone;
if (mThermalSensors == null) return;
// Name of the sensor and current temperature are mandatory parameters of an UEvent
sensorName = event.get("NAME");
sensorTemp = Integer.parseInt(event.get("TEMP"));
// eventType is an optional parameter. so, check for null case
if (event.get("EVENT") != null) eventType = Integer.parseInt(event.get("EVENT"));
if (sensorName != null) {
Log.i(TAG, "UEvent received for sensor:" + sensorName + " temp:" + sensorTemp);
// check the name against the first sensor
ThermalSensor sensor = mThermalSensors.get(0);
if (sensor != null
&& sensor.getSensorName() != null
&& sensor.getSensorName().equalsIgnoreCase(sensorName)) {
// Adjust the sensor temperature based on the 'error correction' temperature.
// For 'LOW' event, debounce interval will take care of this.
errorVal = sensor.getErrorCorrectionTemp();
if (eventType == ThermalManager.THERMAL_HIGH_EVENT) sensorTemp += errorVal;
if (isZoneStateChanged(sensor, sensorTemp)) {
sendThermalEvent();
// reprogram threshold
programThresholds(sensor);
}
}
}
}
private void printSensors() {
if (mThermalSensors == null) return;
StringBuilder s = new StringBuilder();
for (ThermalSensor ts : mThermalSensors) {
if (ts != null) {
s.append(ts.getSensorName());
s.append(",");
}
}
Log.i(TAG, "zoneID: " + mZoneID + " sensors mapped:" + s.toString());
}
