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/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpi_gnvs.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
#include <halt.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <southbridge/intel/bd82x6x/me.h>
#include <southbridge/intel/common/pmutil.h>
#include <northbridge/intel/sandybridge/sandybridge.h>
#include <ec/compal/ene932/ec.h>
#include "ec.h"
static u8 mainboard_smi_ec(void)
{
u8 src;
ec_kbc_write_cmd(0x56);
src = ec_kbc_read_ob();
printk(BIOS_DEBUG, "%s src: %x\n", __func__, src);
switch (src) {
case EC_BATTERY_CRITICAL:
break;
case EC_LID_CLOSE:
printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
/* Go to S5 */
poweroff();
break;
}
return src;
}
void mainboard_smi_gpi(u32 gpi_sts)
{
if (gpi_sts & (1 << EC_SMI_GPI)) {
/* Process all pending events from EC */
do {} while (mainboard_smi_ec() != EC_NO_EVENT);
} else if (gpi_sts & (1 << EC_LID_GPI)) {
printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
/* Go to S5 */
poweroff();
}
}
void mainboard_smi_sleep(u8 slp_typ)
{
bool usb0_disable = 0, usb1_disable = 0;
/* Disable SCI and SMI events */
/* Clear pending events that may trigger immediate wake */
/* Enable wake events */
/* Tell the EC to Disable USB power */
usb_charge_mode_from_gnvs(3, &usb0_disable, &usb1_disable);
if (usb0_disable && usb1_disable) {
ec_kbc_write_cmd(0x45);
ec_kbc_write_ib(0xF2);
}
}
int mainboard_smi_apmc(u8 apmc)
{
switch (apmc) {
case APM_CNT_ACPI_ENABLE:
/* Clear all pending events */
/* EC cmd:59 data:E8 */
ec_kbc_write_cmd(0x59);
ec_kbc_write_ib(0xE8);
/* Set LID GPI to generate SCIs */
gpi_route_interrupt(EC_LID_GPI, GPI_IS_SCI);
break;
case APM_CNT_ACPI_DISABLE:
/* Clear all pending events */
/* EC cmd:59 data:e9 */
ec_kbc_write_cmd(0x59);
ec_kbc_write_ib(0xE9);
/* Set LID GPI to generate SMIs */
gpi_route_interrupt(EC_LID_GPI, GPI_IS_SMI);
break;
}
return 0;
}
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