blob: cd8fb092dd3a6cddee1deaafbc3a4a9fa748952f (
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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2009 coresystems GmbH
*
* 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.
*/
#include <arch/acpi.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
#include <southbridge/intel/bd82x6x/nvs.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <southbridge/intel/bd82x6x/me.h>
#include <southbridge/intel/common/pmbase.h>
#include <northbridge/intel/sandybridge/sandybridge.h>
#include <cpu/intel/model_206ax/model_206ax.h>
#include <elog.h>
/* Include EC functions */
#include <ec/google/chromeec/ec.h>
#include "ec.h"
static u8 mainboard_smi_ec(void)
{
u8 cmd = google_chromeec_get_event();
/* Log this event */
if (cmd)
elog_gsmi_add_event_byte(ELOG_TYPE_EC_EVENT, cmd);
switch (cmd) {
case EC_HOST_EVENT_LID_CLOSED:
printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
/* Go to S5 */
write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10));
break;
}
return cmd;
}
void mainboard_smi_gpi(u32 gpi_sts)
{
if (gpi_sts & (1 << EC_SMI_GPI)) {
/* Process all pending events */
while (mainboard_smi_ec() != 0);
}
}
void mainboard_smi_sleep(u8 slp_typ)
{
/* Disable USB charging if required */
switch (slp_typ) {
case ACPI_S3:
if (smm_get_gnvs()->s3u0 == 0)
google_chromeec_set_usb_charge_mode(
0, USB_CHARGE_MODE_DISABLED);
if (smm_get_gnvs()->s3u1 == 0)
google_chromeec_set_usb_charge_mode(
1, USB_CHARGE_MODE_DISABLED);
break;
case ACPI_S5:
if (smm_get_gnvs()->s5u0 == 0)
google_chromeec_set_usb_charge_mode(
0, USB_CHARGE_MODE_DISABLED);
if (smm_get_gnvs()->s5u1 == 0)
google_chromeec_set_usb_charge_mode(
1, USB_CHARGE_MODE_DISABLED);
break;
}
/* Disable SCI and SMI events */
google_chromeec_set_smi_mask(0);
google_chromeec_set_sci_mask(0);
/* Clear pending events that may trigger immediate wake */
while (google_chromeec_get_event() != 0);
/* Enable wake events */
google_chromeec_set_wake_mask(LINK_EC_S3_WAKE_EVENTS);
}
#define APMC_ACPI_EN 0xe1
#define APMC_ACPI_DIS 0x1e
int mainboard_smi_apmc(u8 apmc)
{
switch (apmc) {
case APMC_ACPI_EN:
google_chromeec_set_smi_mask(0);
/* Clear all pending events */
while (google_chromeec_get_event() != 0);
google_chromeec_set_sci_mask(LINK_EC_SCI_EVENTS);
break;
case APMC_ACPI_DIS:
google_chromeec_set_sci_mask(0);
/* Clear all pending events */
while (google_chromeec_get_event() != 0);
google_chromeec_set_smi_mask(LINK_EC_SMI_EVENTS);
break;
}
return 0;
}
|
