| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2012 Google 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| // Thermal Zone |
| |
| Scope (\_TZ) |
| { |
| // Handler for throttle requests on this platform |
| // 0 = Stop throttling |
| // 1 = Start throttling |
| Method (THRT, 1, Serialized) |
| { |
| If (LEqual (Arg0, 0)) { |
| /* Disable Power Limit */ |
| \_SB.PCI0.MCHC.CTLD () |
| } Else { |
| /* Enable Power Limit */ |
| \_SB.PCI0.MCHC.CTLE (\F0PW) |
| } |
| } |
| |
| 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 Temperature from TIN# set in NVS |
| Store (\_SB.PCI0.LPCB.EC0.TINS (TMPS), Local0) |
| |
| // Check for sensor not calibrated |
| If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TNCA)) { |
| Return (CTOK(0)) |
| } |
| |
| // Check for sensor not present |
| If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TNPR)) { |
| Return (CTOK(0)) |
| } |
| |
| // Check for sensor not powered |
| If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TNOP)) { |
| Return (CTOK(0)) |
| } |
| |
| // Check for sensor bad reading |
| If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TBAD)) { |
| Return (CTOK(0)) |
| } |
| |
| // Adjust by offset to get Kelvin |
| Add (\_SB.PCI0.LPCB.EC0.TOFS, Local0, Local0) |
| |
| // Convert to 1/10 Kelvin |
| Multiply (Local0, 10, Local0) |
| Return (Local0) |
| } |
| } |
| } |
| |
