027f86e6af
Early Chromebook generations stored the information about USB port power control for S3/S5 sleepstates in GNVS, although the configuration is static. Reduce code duplication and react to ACPI S4 as if it was ACPI S5 request. Change-Id: I7e6f37a023b0e9317dcf0355dfa70e28d51cdad9 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74524 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
88 lines
2 KiB
C
88 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <acpi/acpi.h>
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#include <acpi/acpi_gnvs.h>
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#include <acpi/acpi_pm.h>
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#include <assert.h>
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#include <cbmem.h>
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#include <console/console.h>
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#include <smbios.h>
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static const char *pm_fetch_failure_msg[PS_CLAIMER_MAX] = {
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[PS_CLAIMER_ELOG] = "no event recorded in ELOG.",
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[PS_CLAIMER_RTC] = "RTC init aborted.",
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[PS_CLAIMER_WAKE] = "wake source unknown.",
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};
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void __weak mainboard_suspend_resume(void)
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{
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}
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/* Default mapping to ACPI FADT preferred_pm_profile field. */
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uint8_t acpi_get_preferred_pm_profile(void)
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{
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switch (smbios_mainboard_enclosure_type()) {
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case SMBIOS_ENCLOSURE_LAPTOP:
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case SMBIOS_ENCLOSURE_CONVERTIBLE:
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return PM_MOBILE;
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case SMBIOS_ENCLOSURE_DETACHABLE:
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case SMBIOS_ENCLOSURE_TABLET:
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return PM_TABLET;
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case SMBIOS_ENCLOSURE_DESKTOP:
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return PM_DESKTOP;
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case SMBIOS_ENCLOSURE_UNKNOWN:
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default:
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return PM_UNSPECIFIED;
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}
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}
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struct chipset_power_state *acpi_get_pm_state(void)
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{
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static struct chipset_power_state *acpi_pm_state;
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if (acpi_pm_state)
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return acpi_pm_state;
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acpi_pm_state = cbmem_find(CBMEM_ID_POWER_STATE);
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return acpi_pm_state;
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}
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int acpi_fetch_pm_state(const struct chipset_power_state **ps,
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enum power_state_claimer ps_claimer)
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{
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assert(ps_claimer < PS_CLAIMER_MAX);
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*ps = acpi_get_pm_state();
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if (!*ps) {
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printk(BIOS_ERR, "No CBMEM_ID_POWER_STATE entry, %s\n",
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ps_claimer < PS_CLAIMER_MAX ?
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pm_fetch_failure_msg[ps_claimer] : "unknown claimer.");
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return -1;
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}
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return 0;
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}
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/* Not every <soc/nvs.h> exists and has required fields. */
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#if CONFIG(ACPI_GNVS_USB_CHARGECTL) && ENV_SMM
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#include <cpu/x86/smm.h>
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#include <soc/nvs.h>
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void usb_charge_mode_from_gnvs(uint8_t slp_typ, bool *usb0_disable, bool *usb1_disable)
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{
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if (!gnvs)
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return;
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switch (slp_typ) {
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case ACPI_S3:
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*usb0_disable = (gnvs->s3u0 == 0);
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*usb1_disable = (gnvs->s3u1 == 0);
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break;
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case ACPI_S4:
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case ACPI_S5:
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*usb0_disable = (gnvs->s5u0 == 0);
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*usb1_disable = (gnvs->s5u1 == 0);
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break;
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}
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}
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#endif /* CONFIG(ACPI_GNVS_USB_CHARGECTL) */
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