/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */

// Thermal Zone

External (\PPKG, MethodObj)

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 ())
		}
	}
}