diff options
Diffstat (limited to 'src/acpi/device.c')
| -rw-r--r-- | src/acpi/device.c | 80 |
1 files changed, 73 insertions, 7 deletions
diff --git a/src/acpi/device.c b/src/acpi/device.c index b732b8f36a..b76357e675 100644 --- a/src/acpi/device.c +++ b/src/acpi/device.c @@ -19,6 +19,27 @@ #define ACPI_DP_UUID "daffd814-6eba-4d8c-8a91-bc9bbf4aa301" #define ACPI_DP_CHILD_UUID "dbb8e3e6-5886-4ba6-8795-1319f52a966b" +/* + * Below properties are defined at + * https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports + */ +#define ACPI_DSD_EXTERNAL_FACING_PORT_UUID "EFCC06CC-73AC-4BC3-BFF0-76143807C389" +#define ACPI_DSD_EXTERNAL_FACING_PORT_NAME "ExternalFacingPort" + +#define ACPI_DSD_HOTPLUG_IN_D3_UUID "6211E2C0-58A3-4AF3-90E1-927A4E0C55A4" +#define ACPI_DSD_HOTPLUG_IN_D3_NAME "HotPlugSupportInD3" + +/* ID for the DmaProperty _DSD */ +#define ACPI_DSD_DMA_PROPERTY_UUID "70D24161-6DD5-4C9E-8070-705531292865" +#define ACPI_DSD_DMA_PROPERTY_NAME "DmaProperty" + +/* + * Below properties are defined at + * https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/power-management-for-storage-hardware-devices-intro + */ +#define ACPI_DSD_STORAGE_D3_UUID "5025030F-842F-4AB4-A561-99A5189762D0" +#define ACPI_DSD_STORAGE_D3_NAME "StorageD3Enable" + /* Write empty word value and return pointer to it */ static void *acpi_device_write_zero_len(void) { @@ -1184,18 +1205,63 @@ void acpi_device_write_pci_dev(const struct device *dev) acpigen_pop_len(); /* Scope */ } -/* ID for the DmaProperty _DSD */ -#define ACPI_DSD_DMA_PROPERTY_UUID "70D24161-6DD5-4C9E-8070-705531292865" - -/* _DSD with DmaProperty */ -void acpi_device_add_dma_property(struct acpi_dp *dsd) +/* + * Helper function to add given integer property with an UUID to _DSD in the current scope. + * + * dsd - Pointer to a _DSD object. + * Append to existing _DSD object if not NULL. + * Create new _DSD object and flush it if NULL. + * uuid - Pointer to the UUID string. + * name - Pointer to the property name string. + * value - Value of the integer property. + */ +static void acpi_device_add_integer_property_with_uuid(struct acpi_dp *dsd, + const char *uuid, + const char *name, + uint64_t value) { struct acpi_dp *prev_dsd = dsd, *pkg; if (prev_dsd == NULL) dsd = acpi_dp_new_table("_DSD"); - pkg = acpi_dp_new_table(ACPI_DSD_DMA_PROPERTY_UUID); - acpi_dp_add_integer(pkg, "DmaProperty", 1); + pkg = acpi_dp_new_table(uuid); + acpi_dp_add_integer(pkg, name, value); acpi_dp_add_package(dsd, pkg); if (prev_dsd == NULL) acpi_dp_write(dsd); } + +/* _DSD with ExternalFacingPort */ +void acpi_device_add_external_facing_port(struct acpi_dp *dsd) +{ + acpi_device_add_integer_property_with_uuid(dsd, + ACPI_DSD_EXTERNAL_FACING_PORT_UUID, + ACPI_DSD_EXTERNAL_FACING_PORT_NAME, + 1); +} + +/* _DSD with HotPlugSupportInD3 */ +void acpi_device_add_hotplug_support_in_d3(struct acpi_dp *dsd) +{ + acpi_device_add_integer_property_with_uuid(dsd, + ACPI_DSD_HOTPLUG_IN_D3_UUID, + ACPI_DSD_HOTPLUG_IN_D3_NAME, + 1); +} + +/* _DSD with DmaProperty */ +void acpi_device_add_dma_property(struct acpi_dp *dsd) +{ + acpi_device_add_integer_property_with_uuid(dsd, + ACPI_DSD_DMA_PROPERTY_UUID, + ACPI_DSD_DMA_PROPERTY_NAME, + 1); +} + +/* _DSD with StorageD3Enable */ +void acpi_device_add_storage_d3_enable(struct acpi_dp *dsd) +{ + acpi_device_add_integer_property_with_uuid(dsd, + ACPI_DSD_STORAGE_D3_UUID, + ACPI_DSD_STORAGE_D3_NAME, + 1); +} |