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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 The Chromium OS Authors. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
// Thermal Zone
External (\PPKG, MethodObj)
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
Multiply (Arg0, 10, Local0)
// Convert to Kelvin
Add (Local0, 2732, Local0)
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 ())
}
Method (_TMP, 0, Serialized)
{
// Get CPU Temperature from PECI via SuperIO TMPIN3
Store (\_SB.PCI0.LPCB.SIO.ENVC.TIN3, Local0)
// Check for invalid readings
If (LOr (LEqual (Local0, 255), LEqual (Local0, 0))) {
Return (CTOK (\F2ON))
}
// PECI raw value is an offset from Tj_max
Subtract (255, Local0, Local1)
// Handle values greater than Tj_max
If (LGreaterEqual (Local1, \TMAX)) {
Return (CTOK (\TMAX))
}
// Subtract from Tj_max to get temperature
Subtract (\TMAX, Local1, Local0)
Return (CTOK (Local0))
}
Method (_AC0) {
If (LLessEqual (\FLVL, 0)) {
Return (CTOK (\F0OF))
} Else {
Return (CTOK (\F0ON))
}
}
Method (_AC1) {
If (LLessEqual (\FLVL, 1)) {
Return (CTOK (\F1OF))
} Else {
Return (CTOK (\F1ON))
}
}
Method (_AC2) {
If (LLessEqual (\FLVL, 2)) {
Return (CTOK (\F2OF))
} Else {
Return (CTOK (\F2ON))
}
}
Method (_AC3) {
If (LLessEqual (\FLVL, 3)) {
Return (CTOK (\F3OF))
} Else {
Return (CTOK (\F3ON))
}
}
Method (_AC4) {
If (LLessEqual (\FLVL, 4)) {
Return (CTOK (\F4OF))
} Else {
Return (CTOK (\F4ON))
}
}
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 (LLessEqual (\FLVL, 0)) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
Store (0, \FLVL)
Store (\F0PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
Notify (\_TZ.THRM, 0x81)
}
Method (_OFF) {
Store (1, \FLVL)
Store (\F1PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
Notify (\_TZ.THRM, 0x81)
}
}
PowerResource (FNP1, 0, 0)
{
Method (_STA) {
If (LLessEqual (\FLVL, 1)) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
Store (1, \FLVL)
Store (\F1PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
Notify (\_TZ.THRM, 0x81)
}
Method (_OFF) {
Store (2, \FLVL)
Store (\F2PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
Notify (\_TZ.THRM, 0x81)
}
}
PowerResource (FNP2, 0, 0)
{
Method (_STA) {
If (LLessEqual (\FLVL, 2)) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
Store (2, \FLVL)
Store (\F2PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
Notify (\_TZ.THRM, 0x81)
}
Method (_OFF) {
Store (3, \FLVL)
Store (\F3PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
Notify (\_TZ.THRM, 0x81)
}
}
PowerResource (FNP3, 0, 0)
{
Method (_STA) {
If (LLessEqual (\FLVL, 3)) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
Store (3, \FLVL)
Store (\F3PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
Notify (\_TZ.THRM, 0x81)
}
Method (_OFF) {
Store (4, \FLVL)
Store (\F4PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
Notify (\_TZ.THRM, 0x81)
}
}
PowerResource (FNP4, 0, 0)
{
Method (_STA) {
If (LLessEqual (\FLVL, 4)) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
Store (4, \FLVL)
Store (\F4PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
Notify (\_TZ.THRM, 0x81)
}
Method (_OFF) {
Store (4, \FLVL)
Store (\F4PW, \_SB.PCI0.LPCB.SIO.ENVC.F3PS)
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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