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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 <soc/pm.h>
#include <ec/google/chromeec/ec.h>
#include <ec/google/chromeec/smm.h>
#include <southbridge/intel/lynxpoint/lp_gpio.h>
#include <soc/iomap.h>
#include <soc/nvs.h>
#include "ec.h"
#include <variant/onboard.h>
/* gpi_sts is GPIO 47:32 */
void mainboard_smi_gpi(u32 gpi_sts)
{
if (gpi_sts & (1 << (EC_SMI_GPI - 32)))
chromeec_smi_process_events();
}
static void mainboard_disable_gpios(void)
{
#if CONFIG(BOARD_GOOGLE_SAMUS)
/* Put SSD in reset to prevent leak */
set_gpio(BOARD_SSD_RESET_GPIO, 0);
/* Disable LTE */
set_gpio(BOARD_LTE_DISABLE_GPIO, 0);
#else
set_gpio(BOARD_PP3300_CODEC_GPIO, 0);
#endif
/* Prevent leak from standby rail to WLAN rail */
set_gpio(BOARD_WLAN_DISABLE_GPIO, 0);
}
void mainboard_smi_sleep(u8 slp_typ)
{
/* Disable USB charging if required */
switch (slp_typ) {
case ACPI_S3:
if (gnvs->s3u0 == 0) {
google_chromeec_set_usb_charge_mode(
0, USB_CHARGE_MODE_DISABLED);
google_chromeec_set_usb_charge_mode(
1, USB_CHARGE_MODE_DISABLED);
}
mainboard_disable_gpios();
/* Enable wake events */
google_chromeec_set_wake_mask(MAINBOARD_EC_S3_WAKE_EVENTS);
break;
case ACPI_S5:
if (gnvs->s5u0 == 0) {
google_chromeec_set_usb_charge_mode(
0, USB_CHARGE_MODE_DISABLED);
google_chromeec_set_usb_charge_mode(
1, USB_CHARGE_MODE_DISABLED);
}
mainboard_disable_gpios();
/* 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() != EC_HOST_EVENT_NONE)
;
}
int mainboard_smi_apmc(u8 apmc)
{
chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS, MAINBOARD_EC_SMI_EVENTS);
return 0;
}
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