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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2009 coresystems GmbH
* Copyright (C) 2012 secunet Security Networks AG
*
* 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
Scope (\_TZ)
{
/* degree Celcius to deci-Kelvin (ACPI temperature unit) */
Method(C2dK, 1) {
Add (2732, Multiply (Arg0, 10), Local0)
Return (Local0)
}
ThermalZone (THRM)
{
// FIXME these could/should be read from the
// GNVS area, so they can be controlled by
// coreboot
Name(TC1V, 0x04)
Name(TC2V, 0x03)
Name(TSPV, 0x96)
// At which temperature should the OS start
// active cooling?
Method (_AC0, 0, Serialized)
{
Return (C2dK(120)) // Value for Rocky
}
// Critical shutdown temperature
Method (_CRT, 0, Serialized)
{
Return (C2dK(155)) // Value for Rocky
}
// CPU throttling start temperature
Method (_PSV, 0, Serialized)
{
Return (C2dK(105)) // Value for Rocky
}
// Get DTS Temperature
Method (_TMP, 0, Serialized)
{
If (\_SB.PCI0.LPCB.EC0.ALRC) {
Store(0, \_SB.PCI0.LPCB.EC0.ALRC)
Return(_AC0())
}
If (\_SB.PCI0.LPCB.EC0.ALRL) {
Store(0, THRO)
Store(0, \_SB.PCI0.LPCB.EC0.ALRL)
}
If (\_SB.PCI0.LPCB.EC0.ALRH) {
Store(1, THRO)
Store(0, \_SB.PCI0.LPCB.EC0.ALRH)
}
/* vendor BIOS reports 0K if TCPU >= 128 deg C ?!? */
Return (C2dK(\_SB.PCI0.LPCB.EC0.TCPU))
}
// Processors used for active cooling
Method (_PSL, 0, Serialized)
{
If (MPEN) {
Return (Package() {\_PR.CP00, \_PR.CP01})
}
Return (Package() {\_PR.CP00})
}
// TC1 value for passive cooling
Method (_TC1, 0, Serialized)
{
Return (TC1V)
}
// TC2 value for passive cooling
Method (_TC2, 0, Serialized)
{
Return (TC2V)
}
// Sampling period for passive cooling
Method (_TSP, 0, Serialized)
{
Return (TSPV)
}
}
}
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