diff options
Diffstat (limited to 'src/acpi/acpi_pm.c')
| -rw-r--r-- | src/acpi/acpi_pm.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/acpi/acpi_pm.c b/src/acpi/acpi_pm.c index c1e99962a9..bee5616e57 100644 --- a/src/acpi/acpi_pm.c +++ b/src/acpi/acpi_pm.c @@ -1,6 +1,9 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include <acpi/acpi.h> +#include <acpi/acpi_pm.h> +#include <cbmem.h> +#include <console/console.h> #include <smbios.h> void __weak mainboard_suspend_resume(void) @@ -24,3 +27,43 @@ uint8_t acpi_get_preferred_pm_profile(void) return PM_UNSPECIFIED; } } + +struct chipset_power_state *acpi_get_pm_state(void) +{ + static struct chipset_power_state *acpi_pm_state; + if (acpi_pm_state) + return acpi_pm_state; + + acpi_pm_state = cbmem_find(CBMEM_ID_POWER_STATE); + return acpi_pm_state; +} + +int acpi_pm_state_for_elog(const struct chipset_power_state **ps) +{ + *ps = acpi_get_pm_state(); + if (!*ps) { + printk(BIOS_ERR, "No CBMEM_ID_POWER_STATE entry, no event recorded in ELOG.\n"); + return -1; + } + return 0; +} + +int acpi_pm_state_for_rtc(const struct chipset_power_state **ps) +{ + *ps = acpi_get_pm_state(); + if (!*ps) { + printk(BIOS_ERR, "No CBMEM_ID_POWER_STATE entry, RTC init aborted.\n"); + return -1; + } + return 0; +} + +int acpi_pm_state_for_wake(const struct chipset_power_state **ps) +{ + *ps = acpi_get_pm_state(); + if (!*ps) { + printk(BIOS_ERR, "No CBMEM_ID_POWER_STATE entry, wake source unknown.\n"); + return -1; + } + return 0; +} |