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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Siemens AG, Inc.
* (Written by Josef Kellermann <joseph.kellermann@heitec.de> for Siemens AG, Inc.)
*
* 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 */
Scope(\_TZ) {
Name (KELV, 2732)
Name (THOT, 800)
Name (TCRT, 850)
ThermalZone(TZ00) {
Method(_AC0,0) { /* Active Cooling 0 (0=highest fan speed) */
/* DBGO("\\_TZ\\TZ00\\_AC0\n") */
Return(Add(0, 2730))
}
Method(_AL0,0) { /* Returns package of cooling device to turn on */
/* DBGO("\\_TZ\\TZ00\\_AL0\n") */
Return(Package() {\_TZ.TZ00.FAN0})
}
Device (FAN0) {
Name(_HID, EISAID("PNP0C0B"))
Name(_PR0, Package() {PFN0})
}
PowerResource(PFN0,0,0) {
Method(_STA) {
Store(0xF,Local0)
Return(Local0)
}
Method(_ON) {
/* DBGO("\\_TZ\\TZ00\\FAN0 _ON\n") */
}
Method(_OFF) {
/* DBGO("\\_TZ\\TZ00\\FAN0 _OFF\n") */
}
}
// Processors used for active cooling
Method (_PSL, 0, Serialized)
{
If (MPEN) {
Return (Package() {\_PR.CP00, \_PR.CP01})
}
Return (Package() {\_PR.CP00})
}
Method(_HOT,0) { /* return hot temp in tenths degree Kelvin */
/* DBGO("\\_TZ\\TZ00\\_HOT\n") */
Return (Add (THOT, KELV))
}
Method(_CRT,0) { /* return critical temp in tenths degree Kelvin */
/* DBGO("\\_TZ\\TZ00\\_CRT\n") */
Return (Add (TCRT, KELV))
}
Method(_TMP,0) { /* return current temp of this zone */
Store (SMBR (0x07, 0x4C,, 0x00), Local0)
If (LGreater (Local0, 0x10)) {
Store (Local0, Local1)
}
Else {
Add (Local0, THOT, Local0)
Return (Add (400, KELV))
}
Store (SMBR (0x07, 0x4C, 0x01), Local0)
/* only the two MSBs in the external temperature low byte are used, resolution 0.25. We ignore it */
/* Store (SMBR (0x07, 0x4C, 0x10), Local2) */
If (LGreater (Local0, 0x10)) {
If (LGreater (Local0, Local1)) {
Store (Local0, Local1)
}
Multiply (Local1, 10, Local1)
Return (Add (Local1, KELV))
}
Else {
Add (Local0, THOT, Local0)
Return (Add (400 , KELV))
}
} /* end of _TMP */
} /* end of TZ00 */
}
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