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/* SPDX-License-Identifier: GPL-2.0-only */
External (\PPKG, MethodObj)
#include <variant/thermal.h>
// Thermal Zone
#define HAVE_THERMALZONE
Scope (\_TZ)
{
ThermalZone (THRM)
{
Name (_TC1, 0x02)
Name (_TC2, 0x05)
// Thermal zone polling frequency: 10 seconds
Name (_TZP, 100)
// Thermal sampling period for passive cooling: 2 seconds
Name (_TSP, 20)
// Convert from Degrees C to 1/10 Kelvin for ACPI
Method (CTOK, 1) {
// 10th of Degrees C
Local0 = Arg0 * 10
// Convert to Kelvin
Local0 += 2732
Return (Local0)
}
// Threshold for OS to shutdown
Method (_CRT, 0, Serialized)
{
Return (CTOK (\TCRT))
}
// Threshold for passive cooling
Method (_PSV, 0, Serialized)
{
Return (CTOK (\TPSV))
}
// Processors used for passive cooling
Method (_PSL, 0, Serialized)
{
Return (\PPKG ())
}
// Start fan at state 4 = lowest temp state
Method (_INI)
{
\FLVL = 4
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN4_PWM
Notify (\_TZ.THRM, 0x81)
}
Method (TCHK, 0, Serialized)
{
// Get CPU Temperature from PECI via SuperIO TMPIN3
Local0 = \_SB.PCI0.LPCB.SIO.ENVC.TIN3
// Check for "no reading available"
If (Local0 == 0x80) {
Return (CTOK (FAN0_THRESHOLD_ON))
}
// Check for invalid readings
If ((Local0 == 255) || (Local0 == 0)) {
Return (CTOK (FAN0_THRESHOLD_ON))
}
// PECI raw value is an offset from Tj_max
Local1 = 255 - Local0
// Handle values greater than Tj_max
If (Local1 >= \TMAX) {
Return (CTOK (\TMAX))
}
// Subtract from Tj_max to get temperature
Local0 = \TMAX - Local1
Return (CTOK (Local0))
}
Method (_TMP, 0, Serialized)
{
// Get temperature from SuperIO in deci-kelvin
Local0 = TCHK ()
// Critical temperature in deci-kelvin
Local1 = CTOK (\TMAX)
If (Local0 >= Local1) {
Printf ("CRITICAL TEMPERATURE: %o", Local0)
// Wait 1 second for SuperIO to re-poll
Sleep (1000)
// Re-read temperature from SuperIO
Local0 = TCHK ()
Printf ("RE-READ TEMPERATURE: %o", Local0)
}
Return (Local0)
}
Method (_AC0) {
If (\FLVL <= 0) {
Return (CTOK (FAN0_THRESHOLD_OFF))
} Else {
Return (CTOK (FAN0_THRESHOLD_ON))
}
}
Method (_AC1) {
If (\FLVL <= 1) {
Return (CTOK (FAN1_THRESHOLD_OFF))
} Else {
Return (CTOK (FAN1_THRESHOLD_ON))
}
}
Method (_AC2) {
If (\FLVL <= 2) {
Return (CTOK (FAN2_THRESHOLD_OFF))
} Else {
Return (CTOK (FAN2_THRESHOLD_ON))
}
}
Method (_AC3) {
If (\FLVL <= 3) {
Return (CTOK (FAN3_THRESHOLD_OFF))
} Else {
Return (CTOK (FAN3_THRESHOLD_ON))
}
}
Method (_AC4) {
If (\FLVL <= 4) {
Return (CTOK (FAN4_THRESHOLD_OFF))
} Else {
Return (CTOK (FAN4_THRESHOLD_ON))
}
}
Name (_AL0, Package () { FAN0 })
Name (_AL1, Package () { FAN1 })
Name (_AL2, Package () { FAN2 })
Name (_AL3, Package () { FAN3 })
Name (_AL4, Package () { FAN4 })
PowerResource (FNP0, 0, 0)
{
Method (_STA) {
If (\FLVL <= 0) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
If (!_STA ()) {
\FLVL = 0
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN0_PWM
Notify (\_TZ.THRM, 0x81)
}
}
Method (_OFF) {
If (_STA ()) {
\FLVL = 1
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN1_PWM
Notify (\_TZ.THRM, 0x81)
}
}
}
PowerResource (FNP1, 0, 0)
{
Method (_STA) {
If (\FLVL <= 1) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
If (!_STA ()) {
\FLVL = 1
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN1_PWM
Notify (\_TZ.THRM, 0x81)
}
}
Method (_OFF) {
If (_STA ()) {
\FLVL = 2
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN2_PWM
Notify (\_TZ.THRM, 0x81)
}
}
}
PowerResource (FNP2, 0, 0)
{
Method (_STA) {
If (\FLVL <= 2) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
If (!_STA ()) {
\FLVL = 2
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN2_PWM
Notify (\_TZ.THRM, 0x81)
}
}
Method (_OFF) {
If (_STA ()) {
\FLVL = 3
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN3_PWM
Notify (\_TZ.THRM, 0x81)
}
}
}
PowerResource (FNP3, 0, 0)
{
Method (_STA) {
If (\FLVL <= 3) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
If (!_STA ()) {
\FLVL = 3
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN3_PWM
Notify (\_TZ.THRM, 0x81)
}
}
Method (_OFF) {
If (_STA ()) {
\FLVL = 4
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN4_PWM
Notify (\_TZ.THRM, 0x81)
}
}
}
PowerResource (FNP4, 0, 0)
{
Method (_STA) {
If (\FLVL <= 4) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
If (!_STA ()) {
\FLVL = 4
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN4_PWM
Notify (\_TZ.THRM, 0x81)
}
}
Method (_OFF) {
If (_STA ()) {
\FLVL = 4
\_SB.PCI0.LPCB.SIO.ENVC.F2PS = FAN4_PWM
Notify (\_TZ.THRM, 0x81)
}
}
}
Device (FAN0)
{
Name (_HID, EISAID ("PNP0C0B"))
Name (_UID, 0)
Name (_PR0, Package () { FNP0 })
}
Device (FAN1)
{
Name (_HID, EISAID ("PNP0C0B"))
Name (_UID, 1)
Name (_PR0, Package () { FNP1 })
}
Device (FAN2)
{
Name (_HID, EISAID ("PNP0C0B"))
Name (_UID, 2)
Name (_PR0, Package () { FNP2 })
}
Device (FAN3)
{
Name (_HID, EISAID ("PNP0C0B"))
Name (_UID, 3)
Name (_PR0, Package () { FNP3 })
}
Device (FAN4)
{
Name (_HID, EISAID ("PNP0C0B"))
Name (_UID, 4)
Name (_PR0, Package () { FNP4 })
}
}
}
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