u-boot/arch/x86/include/asm/acpi/dptf/dptf.asl

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2014 Google Inc.
* Copyright (C) 2016 Intel Corporation.
*/
Device (DPTF)
{
Name (_HID, EISAID ("INT3400"))
Name (_UID, 0)
Name (IDSP, Package()
{
/* DPPM Passive Policy 1.0 */
ToUUID ("42A441D6-AE6A-462B-A84B-4A8CE79027D3"),
/* DPPM Critical Policy */
ToUUID ("97C68AE7-15FA-499c-B8C9-5DA81D606E0A"),
/* DPPM Cooling Policy */
ToUUID ("16CAF1B7-DD38-40ED-B1C1-1B8A1913D531"),
#ifdef DPTF_ENABLE_FAN_CONTROL
/* DPPM Active Policy */
ToUUID ("3A95C389-E4B8-4629-A526-C52C88626BAE"),
#endif
})
Method (_STA)
{
If (LEqual (\DPTE, One)) {
Return (0xF)
} Else {
Return (0x0)
}
}
/*
* Arg0: Buffer containing UUID
* Arg1: Integer containing Revision ID of buffer format
* Arg2: Integer containing count of entries in Arg3
* Arg3: Buffer containing list of DWORD capabilities
* Return: Buffer containing list of DWORD capabilities
*/
Method (_OSC, 4, Serialized)
{
/* Check for Passive Policy UUID */
If (LEqual (DeRefOf (Index (IDSP, 0)), Arg0)) {
/* Initialize Thermal Devices */
^TINI ()
#ifdef DPTF_ENABLE_CHARGER
/* Initialize Charger Device */
^TCHG.INIT ()
#endif
}
Return (Arg3)
}
/* Priority based _TRT */
Name (TRTR, 1)
Method (_TRT)
{
Return (\_SB.DTRT)
}
#ifdef DPTF_ENABLE_FAN_CONTROL
/* _ART : Active Cooling Relationship Table */
Method (_ART)
{
Return (\_SB.DART)
}
#endif
/* 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)
}
/* Convert from 1/10 Kelvin to Degrees C for ACPI */
Method (KTOC, 1) {
If (LLessEqual (Arg0, 2732)) {
Return (0)
}
/* Convert to Celsius */
Subtract (Arg0, 2732, Local0)
/* Convert from 10th of degrees */
Divide (Local0, 10,, Local0)
Return (Local0)
}
/* Include Thermal Participants */
#include "thermal.asl"
#ifdef DPTF_ENABLE_CHARGER
/* Include Charger Participant */
#include "charger.asl"
#endif
#ifdef DPTF_ENABLE_FAN_CONTROL
/* Include Fan Participant */
#include "fan.asl"
#endif
}
Scope (\_SB.PCI0)
{
#include "cpu.asl"
}