95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <acpi/acpi_gnvs.h>
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#include <device/pci_ops.h>
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#include <console/console.h>
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#include <cpu/x86/smm.h>
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#include <southbridge/intel/bd82x6x/nvs.h>
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#include <southbridge/intel/bd82x6x/pch.h>
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#include <southbridge/intel/bd82x6x/me.h>
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#include <southbridge/intel/common/pmbase.h>
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#include <northbridge/intel/sandybridge/sandybridge.h>
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#include <cpu/intel/model_206ax/model_206ax.h>
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/* Include EC functions */
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#include <ec/quanta/it8518/ec.h>
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#include "ec.h"
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static u8 mainboard_smi_ec(void)
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{
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u8 cmd = ec_it8518_get_event();
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switch (cmd) {
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case EC_SMI_LID_CLOSED:
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printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
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/* Go to S5 */
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write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10));
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break;
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}
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return cmd;
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}
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void mainboard_smi_gpi(u32 gpi_sts)
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{
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if (gpi_sts & (1 << EC_SMI_GPI)) {
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/* Process all pending events */
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while (mainboard_smi_ec() != 0);
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}
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}
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void mainboard_smi_sleep(u8 slp_typ)
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{
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/*
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* Tell the EC to Enable USB power for S3 if requested.
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* Bit0 of 0x0D/Bit0 of 0x26
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* 0/0 All USB port off
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* 1/0 USB on, all USB port didn't support wake up
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* 0/1 USB on, yellow port support wake up charge, but may not support
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* charge smart phone.
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* 1/1 USB on, yellow port in AUTO mode and didn't support wake up system.
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*/
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if (gnvs->s3u0 != 0 || gnvs->s3u1 != 0) {
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ec_write(EC_PERIPH_CNTL_3, ec_read(EC_PERIPH_CNTL_3) | 0x00);
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ec_write(EC_USB_S3_EN, ec_read(EC_USB_S3_EN) | 0x01);
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printk(BIOS_DEBUG, "USB wake from S3 enabled.\n");
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} else {
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/*
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* If USB charging in suspend is disabled then also disable
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* the XHCI PME to prevent wake when the port power is cut
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* after the transition into suspend.
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*/
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if (gnvs->xhci) {
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u32 reg32 = pci_read_config32(PCH_XHCI_DEV, 0x74);
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reg32 &= ~(1 << 8); /* disable PME */
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reg32 |= (1 << 15); /* clear PME status */
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pci_write_config32(PCH_XHCI_DEV, 0x74, reg32);
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}
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}
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ec_kbc_write_cmd(EC_KBD_CMD_MUTE);
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ec_it8518_enable_wake_events();
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}
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int mainboard_smi_apmc(u8 apmc)
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{
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switch (apmc) {
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case APM_CNT_FINALIZE:
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stout_ec_finalize_smm();
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break;
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case APM_CNT_ACPI_ENABLE:
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/*
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* TODO(kimarie) Clear all pending events and enable SCI.
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*/
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ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER);
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break;
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case APM_CNT_ACPI_DISABLE:
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/*
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* TODO(kimarie) Clear all pending events and enable SMI.
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*/
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ec_write_cmd(EC_CMD_NOTIFY_ACPI_EXIT);
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break;
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}
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return 0;
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}
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