summaryrefslogtreecommitdiff
path: root/src/mainboard/google/stout/acpi/platform.asl
blob: bdf2b185b649dd8dd0ab4fb1c2d46b59c250793b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2012 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.
 *
 * 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.
 */

/* The _PTS method (Prepare To Sleep) is called before the OS is
 * entering a sleep state. The sleep state number is passed in Arg0
 */

Method(_PTS,1)
{
	// Notify EC to enter S3
	Store(0x01, \_SB.PCI0.LPCB.EC0.S3FG)
}

/* The _WAK method is called on system wakeup */

Method(_WAK,1)
{
	/* Update AC status */
	Store (\_SB.PCI0.LPCB.EC0.ACPW, Local0)
	if (LNotEqual (Local0, \PWRS)) {
		Store (Local0, \PWRS)
		Notify (\_SB.PCI0.LPCB.EC0.AC, 0x80)
	}

	/* Update LID status */
	Store (NOT(\_SB.PCI0.LPCB.EC0.HPLD), Local0)
	if (LNotEqual (Local0, \LIDS)) {
		Store (Local0, \LIDS)
		Notify (\_SB.LID0, 0x80)
	}

	Return(Package(){0,0})
}