| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2008-2009 coresystems GmbH |
| * |
| * 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 <console/console.h> |
| #include <cpu/x86/smm.h> |
| #include <southbridge/intel/bd82x6x/nvs.h> |
| #include <southbridge/intel/bd82x6x/pch.h> |
| #include <southbridge/intel/bd82x6x/me.h> |
| #include <southbridge/intel/common/pmbase.h> |
| #include <northbridge/intel/sandybridge/sandybridge.h> |
| #include <cpu/intel/model_206ax/model_206ax.h> |
| #include <elog.h> |
| |
| /* Include EC functions */ |
| #include <ec/google/chromeec/ec.h> |
| #include "ec.h" |
| |
| static u8 mainboard_smi_ec(void) |
| { |
| u8 cmd = google_chromeec_get_event(); |
| |
| #if IS_ENABLED(CONFIG_ELOG_GSMI) |
| /* Log this event */ |
| if (cmd) |
| elog_add_event_byte(ELOG_TYPE_EC_EVENT, cmd); |
| #endif |
| |
| switch (cmd) { |
| case EC_HOST_EVENT_LID_CLOSED: |
| printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n"); |
| |
| /* Go to S5 */ |
| write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10)); |
| break; |
| } |
| |
| return cmd; |
| } |
| |
| void mainboard_smi_gpi(u32 gpi_sts) |
| { |
| if (gpi_sts & (1 << EC_SMI_GPI)) { |
| /* Process all pending events */ |
| while (mainboard_smi_ec() != 0); |
| } |
| } |
| |
| void mainboard_smi_sleep(u8 slp_typ) |
| { |
| /* Disable USB charging if required */ |
| switch (slp_typ) { |
| case ACPI_S3: |
| if (smm_get_gnvs()->s3u0 == 0) |
| google_chromeec_set_usb_charge_mode( |
| 0, USB_CHARGE_MODE_DISABLED); |
| if (smm_get_gnvs()->s3u1 == 0) |
| google_chromeec_set_usb_charge_mode( |
| 1, USB_CHARGE_MODE_DISABLED); |
| break; |
| case ACPI_S5: |
| if (smm_get_gnvs()->s5u0 == 0) |
| google_chromeec_set_usb_charge_mode( |
| 0, USB_CHARGE_MODE_DISABLED); |
| if (smm_get_gnvs()->s5u1 == 0) |
| google_chromeec_set_usb_charge_mode( |
| 1, USB_CHARGE_MODE_DISABLED); |
| 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); |
| |
| /* Enable wake events */ |
| google_chromeec_set_wake_mask(LINK_EC_S3_WAKE_EVENTS); |
| } |
| |
| #define APMC_ACPI_EN 0xe1 |
| #define APMC_ACPI_DIS 0x1e |
| |
| int mainboard_smi_apmc(u8 apmc) |
| { |
| switch (apmc) { |
| case APMC_ACPI_EN: |
| google_chromeec_set_smi_mask(0); |
| /* Clear all pending events */ |
| while (google_chromeec_get_event() != 0); |
| google_chromeec_set_sci_mask(LINK_EC_SCI_EVENTS); |
| break; |
| case APMC_ACPI_DIS: |
| google_chromeec_set_sci_mask(0); |
| /* Clear all pending events */ |
| while (google_chromeec_get_event() != 0); |
| google_chromeec_set_smi_mask(LINK_EC_SMI_EVENTS); |
| break; |
| } |
| return 0; |
| } |