diff options
Diffstat (limited to 'sys/contrib/dev/acpica/include/actbl.h')
| -rw-r--r-- | sys/contrib/dev/acpica/include/actbl.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/include/actbl.h b/sys/contrib/dev/acpica/include/actbl.h index 96e1755..81e0aa6 100644 --- a/sys/contrib/dev/acpica/include/actbl.h +++ b/sys/contrib/dev/acpica/include/actbl.h @@ -397,4 +397,20 @@ typedef struct acpi_table_desc #define ACPI_FADT_OFFSET(f) (UINT8) ACPI_OFFSET (ACPI_TABLE_FADT, f) +/* + * Sizes of the various flavors of FADT. We need to look closely + * at the FADT length because the version number essentially tells + * us nothing because of many BIOS bugs where the version does not + * match the expected length. In other words, the length of the + * FADT is the bottom line as to what the version really is. + * + * For reference, the values below are as follows: + * FADT V1 size: 0x74 + * FADT V2 size: 0x84 + * FADT V3+ size: 0xF4 + */ +#define ACPI_FADT_V1_SIZE (UINT32) (ACPI_FADT_OFFSET (Flags) + 4) +#define ACPI_FADT_V2_SIZE (UINT32) (ACPI_FADT_OFFSET (Reserved4[0]) + 3) +#define ACPI_FADT_V3_SIZE (UINT32) (sizeof (ACPI_TABLE_FADT)) + #endif /* __ACTBL_H__ */ |
