| /* |
| * 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 |
| |
| Scope (\_TZ) |
| { |
| ThermalZone (THRM) |
| { |
| Name (_TC1, 0x02) |
| Name (_TC2, 0x03) |
| |
| // Thermal zone polling frequency: 10 seconds |
| Name (_TZP, 100) |
| |
| // Thermal sampling period for passive cooling: 10 seconds |
| Name (_TSP, 100) |
| |
| // 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) |
| { |
| // Returns Higher of the two readings for CPU & VGA Temperature |
| If (LGreater (\_SB.PCI0.LPCB.EC0.TMP2, \_SB.PCI0.LPCB.EC0.TMP1)) |
| { |
| // CPU high temperature |
| Store (\_SB.PCI0.LPCB.EC0.TMP2, Local0) |
| } |
| Else |
| { |
| // VGA high temperature |
| Store (\_SB.PCI0.LPCB.EC0.TMP1, Local0) |
| } |
| |
| // If temp less 35 or great then 115, set default 35 |
| If (Or (LLess (Local0, 35), LGreater (Local0, 115))) |
| { |
| Store (35, Local0) |
| } |
| |
| Return (CTOK (Local0)) |
| } |
| } |
| } |