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ec/system76/ec: Add fan and temperature reporting 

Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Change-Id: Iee19e7518ffaacd9a847cb6d28c839d4ec464514
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49465
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Jeremy Soller 2021-01-14 16:38:39 -07:00 committed by Patrick Georgi
parent a2b21c23d5
commit 7cc513557d
1 changed files with 47 additions and 0 deletions
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47
src/ec/system76/ec/acpi/s76.asl
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@ -111,4 +111,51 @@ Device (S76D) {
}
}
#endif // CONFIG(EC_SYSTEM76_EC_COLOR_KEYBOARD)
// Fan names
Method (NFAN, 0, Serialized) {
Return (Package() {
"CPU fan",
})
}
// Get fan duty cycle and RPM as a single value
Method (GFAN, 1, Serialized) {
Local0 = 0
Local1 = 0
If (^^PCI0.LPCB.EC0.ECOK) {
If (Arg0 == 0) {
Local0 = ^^PCI0.LPCB.EC0.DUT1
Local1 = ^^PCI0.LPCB.EC0.RPM1
} ElseIf (Arg0 == 1) {
Local0 = ^^PCI0.LPCB.EC0.DUT2
Local1 = ^^PCI0.LPCB.EC0.RPM2
}
}
If (Local1 != 0) {
// 60 * (EC frequency / 120) / 2
Local1 = 2156250 / Local1
}
Return ((Local1 << 8) | Local0)
}
// Temperature names
Method (NTMP, 0, Serialized) {
Return (Package() {
"CPU temp",
})
}
// Get temperature
Method (GTMP, 1, Serialized) {
Local0 = 0;
If (^^PCI0.LPCB.EC0.ECOK) {
If (Arg0 == 0) {
Local0 = ^^PCI0.LPCB.EC0.TMP1
} ElseIf (Arg0 == 1) {
Local0 = ^^PCI0.LPCB.EC0.TMP2
}
}
Return (Local0)
}
}