/* 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; }