1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
// SPDX-License-Identifier: BSD-3-Clause
//go:build darwin && !arm64
package sensors
import (
"context"
"errors"
"unsafe"
"github.com/shirou/gopsutil/v4/internal/common"
)
func TemperaturesWithContext(ctx context.Context) ([]TemperatureStat, error) {
ioKit, err := common.NewLibrary(common.IOKit)
if err != nil {
return nil, err
}
defer ioKit.Close()
smc, err := common.NewSMC(ioKit)
if err != nil {
return nil, err
}
defer smc.Close()
temperatures := make([]TemperatureStat, 0, len(temperatureKeys))
for _, key := range temperatureKeys {
temperatures = append(temperatures, TemperatureStat{
SensorKey: key,
Temperature: getTemperature(smc, key),
})
}
return temperatures, nil
}
var temperatureKeys = []string{
"TA0P", // AMBIENT_AIR_0
"TA1P", // AMBIENT_AIR_1
"TC0D", // CPU_0_DIODE
"TC0H", // CPU_0_HEATSINK
"TC0P", // CPU_0_PROXIMITY
"TB0T", // ENCLOSURE_BASE_0
"TB1T", // ENCLOSURE_BASE_1
"TB2T", // ENCLOSURE_BASE_2
"TB3T", // ENCLOSURE_BASE_3
"TG0D", // GPU_0_DIODE
"TG0H", // GPU_0_HEATSINK
"TG0P", // GPU_0_PROXIMITY
"TH0P", // HARD_DRIVE_BAY
"TM0S", // MEMORY_SLOT_0
"TM0P", // MEMORY_SLOTS_PROXIMITY
"TN0H", // NORTHBRIDGE
"TN0D", // NORTHBRIDGE_DIODE
"TN0P", // NORTHBRIDGE_PROXIMITY
"TI0P", // THUNDERBOLT_0
"TI1P", // THUNDERBOLT_1
"TW0P", // WIRELESS_MODULE
}
type smcReturn struct {
data [32]uint8
dataType uint32
dataSize uint32
kSMC uint8
}
type smcPLimitData struct {
version uint16
length uint16
cpuPLimit uint32
gpuPLimit uint32
memPLimit uint32
}
type smcKeyInfoData struct {
dataSize uint32
dataType uint32
dataAttributes uint8
}
type smcVersion struct {
major byte
minor byte
build byte
reserved byte
release uint16
}
type smcParamStruct struct {
key uint32
vers smcVersion
plimitData smcPLimitData
keyInfo smcKeyInfoData
result uint8
status uint8
data8 uint8
data32 uint32
bytes [32]byte
}
const (
smcKeySize = 4
dataTypeSp78 = "sp78"
)
func getTemperature(smc *common.SMC, key string) float64 {
result, err := readSMC(smc, key)
if err != nil {
return 0.0
}
if result.dataSize == 2 && result.dataType == toUint32(dataTypeSp78) {
return 0.0
}
return float64(result.data[0])
}
func readSMC(smc *common.SMC, key string) (*smcReturn, error) {
input := new(smcParamStruct)
resultSmc := new(smcReturn)
input.key = toUint32(key)
input.data8 = common.KSMCGetKeyInfo
result, err := callSMC(smc, input)
resultSmc.kSMC = result.result
if err != nil || result.result != common.KSMCSuccess {
return resultSmc, errors.New("ERROR: IOConnectCallStructMethod failed")
}
resultSmc.dataSize = uint32(result.keyInfo.dataSize)
resultSmc.dataType = uint32(result.keyInfo.dataSize)
input.keyInfo.dataSize = result.keyInfo.dataSize
input.data8 = common.KSMCReadKey
result, err = callSMC(smc, input)
resultSmc.kSMC = result.result
if err != nil || result.result != common.KSMCSuccess {
return resultSmc, err
}
resultSmc.data = result.bytes
return resultSmc, nil
}
func callSMC(smc *common.SMC, input *smcParamStruct) (*smcParamStruct, error) {
output := new(smcParamStruct)
inputCnt := unsafe.Sizeof(*input)
outputCnt := unsafe.Sizeof(*output)
result := smc.CallStruct(common.KSMCHandleYPCEvent,
uintptr(unsafe.Pointer(input)), inputCnt, uintptr(unsafe.Pointer(output)), &outputCnt)
if result != 0 {
return output, errors.New("ERROR: IOConnectCallStructMethod failed")
}
return output, nil
}
func toUint32(key string) uint32 {
if len(key) != smcKeySize {
return 0
}
var ans uint32
var shift uint32 = 24
for i := 0; i < smcKeySize; i++ {
ans += uint32(key[i]) << shift
shift -= 8
}
return ans
}
|
