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/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/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);
}
int mainboard_smi_apmc(u8 apmc)
{
switch (apmc) {
case APM_CNT_ACPI_ENABLE:
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 APM_CNT_ACPI_DISABLE:
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;
}
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