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111 lines
3.8 KiB
Objective-C
111 lines
3.8 KiB
Objective-C
// SPDX-FileCopyrightText: Copyright (c) 2016-2018, "freedom" Koan-Sin Tan
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// SPDX-License-Identifier: BSD-3-Clause
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// https://github.com/freedomtan/sensors/blob/master/sensors/sensors.m
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#import <Foundation/Foundation.h>
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#import <IOKit/hidsystem/IOHIDEventSystemClient.h>
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#include <unistd.h>
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typedef struct __IOHIDEvent *IOHIDEventRef;
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typedef struct __IOHIDServiceClient *IOHIDServiceClientRef;
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typedef double IOHIDFloat;
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IOHIDEventSystemClientRef IOHIDEventSystemClientCreate(CFAllocatorRef allocator);
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int IOHIDEventSystemClientSetMatching(IOHIDEventSystemClientRef client, CFDictionaryRef match);
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IOHIDEventRef IOHIDServiceClientCopyEvent(IOHIDServiceClientRef, int64_t, int32_t, int64_t);
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CFStringRef IOHIDServiceClientCopyProperty(IOHIDServiceClientRef service, CFStringRef property);
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IOHIDFloat IOHIDEventGetFloatValue(IOHIDEventRef event, int32_t field);
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NSDictionary *matching(int page, int usage) {
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NSDictionary *dict = @{
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@"PrimaryUsagePage" : [NSNumber numberWithInt:page],
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@"PrimaryUsage" : [NSNumber numberWithInt:usage],
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};
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return dict;
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}
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NSArray *getProductNames(NSDictionary *sensors) {
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IOHIDEventSystemClientRef system = IOHIDEventSystemClientCreate(kCFAllocatorDefault);
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IOHIDEventSystemClientSetMatching(system, (__bridge CFDictionaryRef)sensors);
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NSArray *matchingsrvs = (__bridge NSArray *)IOHIDEventSystemClientCopyServices(system);
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long count = [matchingsrvs count];
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NSMutableArray *array = [[NSMutableArray alloc] init];
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for (int i = 0; i < count; i++) {
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IOHIDServiceClientRef sc = (IOHIDServiceClientRef)matchingsrvs[i];
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NSString *name = (NSString *)IOHIDServiceClientCopyProperty(sc, (__bridge CFStringRef)@"Product");
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if (name) {
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[array addObject:name];
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} else {
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[array addObject:@"noname"];
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}
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}
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return array;
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}
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#define IOHIDEventFieldBase(type) (type << 16)
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#define kIOHIDEventTypeTemperature 15
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#define kIOHIDEventTypePower 25
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NSArray *getThermalValues(NSDictionary *sensors) {
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IOHIDEventSystemClientRef system = IOHIDEventSystemClientCreate(kCFAllocatorDefault);
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IOHIDEventSystemClientSetMatching(system, (__bridge CFDictionaryRef)sensors);
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NSArray *matchingsrvs = (__bridge NSArray *)IOHIDEventSystemClientCopyServices(system);
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long count = [matchingsrvs count];
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NSMutableArray *array = [[NSMutableArray alloc] init];
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for (int i = 0; i < count; i++) {
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IOHIDServiceClientRef sc = (IOHIDServiceClientRef)matchingsrvs[i];
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IOHIDEventRef event = IOHIDServiceClientCopyEvent(sc, kIOHIDEventTypeTemperature, 0, 0);
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NSNumber *value;
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double temp = 0.0;
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if (event != 0) {
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temp = IOHIDEventGetFloatValue(event, IOHIDEventFieldBase(kIOHIDEventTypeTemperature));
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}
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value = [NSNumber numberWithDouble:temp];
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[array addObject:value];
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}
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return array;
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}
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NSString *dumpNamesValues(NSArray *kvsN, NSArray *kvsV) {
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NSMutableString *valueString = [[NSMutableString alloc] init];
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int count = [kvsN count];
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for (int i = 0; i < count; i++) {
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NSString *output = [NSString stringWithFormat:@"%s:%lf\n", [kvsN[i] UTF8String], [kvsV[i] doubleValue]];
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[valueString appendString:output];
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}
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return valueString;
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}
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char *getThermals() {
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NSDictionary *thermalSensors = matching(0xff00, 5);
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NSArray *thermalNames = getProductNames(thermalSensors);
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NSArray *thermalValues = getThermalValues(thermalSensors);
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NSString *result = dumpNamesValues(thermalNames, thermalValues);
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char *finalStr = strdup([result UTF8String]);
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CFRelease(thermalSensors);
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CFRelease(thermalNames);
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CFRelease(thermalValues);
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CFRelease(result);
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return finalStr;
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}
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