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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2009 coresystems GmbH
* Copyright (C) 2016 Intel Corp.
*
* 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 <cpu/x86/smm.h>
#include <ec/google/chromeec/ec.h>
#include <soc/pm.h>
#include "ec.h"
void mainboard_smi_sleep(u8 slp_typ)
{
if (!IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC))
return;
switch (slp_typ) {
case ACPI_S3:
/* Enable wake events */
google_chromeec_set_wake_mask(MAINBOARD_EC_S3_WAKE_EVENTS);
enable_gpe(GPIO_TIER_1_SCI);
break;
case ACPI_S5:
/* Enable wake events */
google_chromeec_set_wake_mask(MAINBOARD_EC_S5_WAKE_EVENTS);
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)
;
}
int mainboard_smi_apmc(u8 apmc)
{
if (!IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC))
return 0;
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(MAINBOARD_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(MAINBOARD_EC_SMI_EVENTS);
break;
}
return 0;
}
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