/* SPDX-License-Identifier: GPL-2.0-only */ #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 <northbridge/intel/sandybridge/sandybridge.h> #include <ec/smsc/mec1308/ec.h> #include "ec.h" static u8 mainboard_smi_ec(void) { u8 cmd; cmd = read_ec_command_byte(EC_GET_SMI_CAUSE); switch (cmd) { case EC_LID_CLOSE: printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n"); /* Go to S5 */ poweroff(); break; } return cmd; } void mainboard_smi_gpi(u32 gpi_sts) { if (gpi_sts & (1 << EC_SMI_GPI)) { /* Process all pending EC requests */ ec_set_ports(EC_MAILBOX_PORT, EC_MAILBOX_PORT+1); while (mainboard_smi_ec() != 0xff); /* The EC may keep asserting SMI# for some * period unless we kick it here. */ send_ec_command(EC_SMI_DISABLE); send_ec_command(EC_SMI_ENABLE); } } int mainboard_smi_apmc(u8 apmc) { ec_set_ports(EC_MAILBOX_PORT, EC_MAILBOX_PORT+1); switch (apmc) { case APM_CNT_ACPI_ENABLE: send_ec_command(EC_SMI_DISABLE); send_ec_command(EC_ACPI_ENABLE); break; case APM_CNT_ACPI_DISABLE: send_ec_command(EC_SMI_ENABLE); send_ec_command(EC_ACPI_DISABLE); break; } return 0; }