42 lines
940 B
C
42 lines
940 B
C
#ifndef _GPXE_ACPI_H
|
|
#define _GPXE_ACPI_H
|
|
|
|
/** @file
|
|
*
|
|
* ACPI data structures
|
|
*
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
/**
|
|
* An ACPI description header
|
|
*
|
|
* This is the structure common to the start of all ACPI system
|
|
* description tables.
|
|
*/
|
|
struct acpi_description_header {
|
|
/** ACPI signature (4 ASCII characters) */
|
|
char signature[4];
|
|
/** Length of table, in bytes, including header */
|
|
uint32_t length;
|
|
/** ACPI Specification minor version number */
|
|
uint8_t revision;
|
|
/** To make sum of entire table == 0 */
|
|
uint8_t checksum;
|
|
/** OEM identification */
|
|
char oem_id[6];
|
|
/** OEM table identification */
|
|
char oem_table_id[8];
|
|
/** OEM revision number */
|
|
uint32_t oem_revision;
|
|
/** ASL compiler vendor ID */
|
|
char asl_compiler_id[4];
|
|
/** ASL compiler revision number */
|
|
uint32_t asl_compiler_revision;
|
|
} __attribute__ (( packed ));
|
|
|
|
extern void acpi_fix_checksum ( struct acpi_description_header *acpi );
|
|
|
|
#endif /* _GPXE_ACPI_H */
|