diff options
| -rw-r--r-- | src/arch/i386/include/arch/acpi.h | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/src/arch/i386/include/arch/acpi.h b/src/arch/i386/include/arch/acpi.h index d51195527c..91cc10c109 100644 --- a/src/arch/i386/include/arch/acpi.h +++ b/src/arch/i386/include/arch/acpi.h @@ -39,14 +39,14 @@ typedef unsigned long long u64; /* ACPI 2.0 table RSDP */ typedef struct acpi_rsdp { - char signature[8]; - u8 checksum; - char oem_id[6]; - u8 revision; - u32 rsdt_address; - u32 length; - u64 xsdt_address; - u8 ext_checksum; + char signature[8]; /* RSDP signature "RSD PTR" */ + u8 checksum; /* checksum of the first 20 bytes */ + char oem_id[6]; /* OEM ID, "LXBIOS" */ + u8 revision; /* 0 for APCI 1.0, 2 for ACPI 2.0 */ + u32 rsdt_address; /* physical address of RSDT */ + u32 length; /* total length of RSDP (including extended part) */ + u64 xsdt_address; /* physical address of XSDT */ + u8 ext_checksum; /* chechsum of whole table */ u8 reserved[3]; } __attribute__((packed)) acpi_rsdp_t; @@ -77,14 +77,18 @@ typedef struct acpi_table_header /* ACPI common table header */ } __attribute__ ((packed)) acpi_header_t; /* RSDT */ - typedef struct acpi_rsdt { struct acpi_table_header header; u32 entry[8]; } __attribute__ ((packed)) acpi_rsdt_t; -/* HPET TIMERS */ +/* XSDT */ +typedef struct acpi_xsdt { + struct acpi_table_header header; + u64 entry[8]; +} __attribute__ ((packed)) acpi_xsdt_t; +/* HPET TIMERS */ typedef struct acpi_hpet { struct acpi_table_header header; u32 id; |