mirror of
https://github.com/aristocratos/btop.git
synced 2024-05-17 10:52:38 +12:00
93 lines
3.6 KiB
C++
93 lines
3.6 KiB
C++
#include "sensors.hpp"
|
|
|
|
#include <CoreFoundation/CoreFoundation.h>
|
|
#include <IOKit/hidsystem/IOHIDEventSystemClient.h>
|
|
|
|
#include <string>
|
|
#include <numeric>
|
|
#include <vector>
|
|
|
|
extern "C" {
|
|
typedef struct __IOHIDEvent *IOHIDEventRef;
|
|
typedef struct __IOHIDServiceClient *IOHIDServiceClientRef;
|
|
#ifdef __LP64__
|
|
typedef double IOHIDFloat;
|
|
#else
|
|
typedef float IOHIDFloat;
|
|
#endif
|
|
|
|
#define IOHIDEventFieldBase(type) (type << 16)
|
|
#define kIOHIDEventTypeTemperature 15
|
|
|
|
IOHIDEventSystemClientRef IOHIDEventSystemClientCreate(CFAllocatorRef allocator);
|
|
int IOHIDEventSystemClientSetMatching(IOHIDEventSystemClientRef client, CFDictionaryRef match);
|
|
int IOHIDEventSystemClientSetMatchingMultiple(IOHIDEventSystemClientRef client, CFArrayRef match);
|
|
IOHIDEventRef IOHIDServiceClientCopyEvent(IOHIDServiceClientRef, int64_t, int32_t, int64_t);
|
|
CFStringRef IOHIDServiceClientCopyProperty(IOHIDServiceClientRef service, CFStringRef property);
|
|
IOHIDFloat IOHIDEventGetFloatValue(IOHIDEventRef event, int32_t field);
|
|
|
|
// create a dict ref, like for temperature sensor {"PrimaryUsagePage":0xff00, "PrimaryUsage":0x5}
|
|
CFDictionaryRef matching(int page, int usage) {
|
|
CFNumberRef nums[2];
|
|
CFStringRef keys[2];
|
|
|
|
keys[0] = CFStringCreateWithCString(0, "PrimaryUsagePage", 0);
|
|
keys[1] = CFStringCreateWithCString(0, "PrimaryUsage", 0);
|
|
nums[0] = CFNumberCreate(0, kCFNumberSInt32Type, &page);
|
|
nums[1] = CFNumberCreate(0, kCFNumberSInt32Type, &usage);
|
|
|
|
CFDictionaryRef dict = CFDictionaryCreate(0, (const void **)keys, (const void **)nums, 2, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
|
|
CFRelease(keys);
|
|
return dict;
|
|
}
|
|
|
|
double getValue(IOHIDServiceClientRef sc) {
|
|
IOHIDEventRef event = IOHIDServiceClientCopyEvent(sc, kIOHIDEventTypeTemperature, 0, 0); // here we use ...CopyEvent
|
|
IOHIDFloat temp = 0.0;
|
|
if (event != 0) {
|
|
temp = IOHIDEventGetFloatValue(event, IOHIDEventFieldBase(kIOHIDEventTypeTemperature));
|
|
CFRelease(event);
|
|
}
|
|
return temp;
|
|
}
|
|
|
|
} // extern C
|
|
|
|
long long Cpu::ThermalSensors::getSensors() {
|
|
CFDictionaryRef thermalSensors = matching(0xff00, 5); // 65280_10 = FF00_16
|
|
// thermalSensors's PrimaryUsagePage should be 0xff00 for M1 chip, instead of 0xff05
|
|
// can be checked by ioreg -lfx
|
|
IOHIDEventSystemClientRef system = IOHIDEventSystemClientCreate(kCFAllocatorDefault);
|
|
IOHIDEventSystemClientSetMatching(system, thermalSensors);
|
|
CFArrayRef matchingsrvs = IOHIDEventSystemClientCopyServices(system);
|
|
std::vector<double> temps;
|
|
if (matchingsrvs) {
|
|
long count = CFArrayGetCount(matchingsrvs);
|
|
for (int i = 0; i < count; i++) {
|
|
IOHIDServiceClientRef sc = (IOHIDServiceClientRef)CFArrayGetValueAtIndex(matchingsrvs, i);
|
|
if (sc) {
|
|
CFStringRef name = IOHIDServiceClientCopyProperty(sc, CFSTR("Product")); // here we use ...CopyProperty
|
|
if (name) {
|
|
char buf[200];
|
|
CFStringGetCString(name, buf, 200, kCFStringEncodingASCII);
|
|
std::string n(buf);
|
|
// this is just a guess, nobody knows which sensors mean what
|
|
// on my system PMU tdie 3 and 9 are missing...
|
|
// there is also PMU tdev1-8 but it has negative values??
|
|
// there is also eACC for efficiency package but it only has 2 entries
|
|
// and pACC for performance but it has 7 entries (2 - 9) WTF
|
|
if (n.starts_with("eACC") or n.starts_with("pACC")) {
|
|
temps.push_back(getValue(sc));
|
|
}
|
|
CFRelease(name);
|
|
}
|
|
}
|
|
}
|
|
CFRelease(matchingsrvs);
|
|
}
|
|
CFRelease(system);
|
|
CFRelease(thermalSensors);
|
|
if (temps.empty()) return 0ll;
|
|
return round(std::accumulate(temps.begin(), temps.end(), 0ll) / temps.size());
|
|
}
|