forked from mirror/smcFanControl
73 lines
2.6 KiB
Mathematica
73 lines
2.6 KiB
Mathematica
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/*
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* FanControl
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*
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* Copyright (c) 2006-2012 Hendrik Holtmann
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*
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* Sensor.m - MacBook(Pro) FanControl application
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#import "IOKitSensor.h"
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@implementation IOKitSensor
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static BOOL isSOCSensor(CFStringRef sensorName) {
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return CFStringHasPrefix(sensorName, CFSTR("PMU")) &&
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!CFStringHasSuffix(sensorName, CFSTR("tcal")); // Ignore "PMU tcal" as it seems static
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}
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static float toOneDecimalPlace(float value) {
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return roundf(10.0f * value) / 10.0f;
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}
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+ (float) getSOCTemperature {
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IOHIDEventSystemClientRef eventSystemClient = IOHIDEventSystemClientCreate(kCFAllocatorDefault);
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CFArrayRef services = IOHIDEventSystemClientCopyServices(eventSystemClient);
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if (services) {
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float socSensorSum = 0.0f;
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int socSensorCount = 0;
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for (int i = 0; i < CFArrayGetCount(services); i++) {
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IOHIDServiceClientRef serviceClientRef = (IOHIDServiceClientRef)CFArrayGetValueAtIndex(services, i);
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CFStringRef sensorName = IOHIDServiceClientCopyProperty(serviceClientRef, CFSTR("Product"));
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if (sensorName) {
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if (isSOCSensor(sensorName)) {
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IOHIDEventRef event = IOHIDServiceClientCopyEvent(serviceClientRef, kIOHIDEventTypeTemperature, 0, 0);
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if (event) {
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IOHIDFloat sensorTemperature = IOHIDEventGetFloatValue(event, IOHIDEventFieldBase(kIOHIDEventTypeTemperature));
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CFRelease(event);
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socSensorSum += sensorTemperature;
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socSensorCount++;
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}
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}
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CFRelease(sensorName);
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}
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}
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CFRelease(services);
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CFRelease(eventSystemClient);
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float avgSOCTemp = socSensorCount > 0 ? socSensorSum / socSensorCount: 0.0f;
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return toOneDecimalPlace(avgSOCTemp);
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}
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return 0.0f;
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}
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@end
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