1/* ----------------------------------------------------------------------- *
2 *
3 *   Copyright 2009-2011 Erwan Velu - All Rights Reserved
4 *
5 *   This program is free software; you can redistribute it and/or modify
6 *   it under the terms of the GNU General Public License as published by
7 *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
8 *   Boston MA 02111-1307, USA; either version 2 of the License, or
9 *   (at your option) any later version; incorporated herein by reference.
10 *
11 * ----------------------------------------------------------------------- */
12
13#ifndef ACPI_STRUCTS_H
14#define ACPI_STRUCTS_H
15#include <inttypes.h>
16#include <stdbool.h>
17
18/* This value define the real size of the acpi structure
19 * Our is bigger as we manage the \0 of strings
20 * */
21#define ACPI_HEADER_SIZE 36
22
23enum { GAS_SYSTEM_MEMORY=0, GAS_SYSTEM_IO=1 };
24
25/* Generic Address Structure (GAS) Format */
26typedef struct {
27    /* address_space_id could be {GAS_SYSTEM_MEMORY | GAS_SYSTEM_IO} */
28    uint8_t address_space_id;
29    uint8_t register_bit_width;
30    uint8_t register_bit_offset;
31    uint8_t reserved;
32    uint64_t address;
33} __attribute__ ((packed)) s_gas;
34
35typedef struct {
36    uint8_t signature[4 + 1];
37    uint32_t length;
38    uint8_t revision;
39    uint8_t checksum;
40    uint8_t oem_id[6 + 1];
41    uint8_t oem_table_id[8 + 1];
42    uint32_t oem_revision;
43    uint8_t creator_id[4 + 1];
44    uint32_t creator_revision;
45} s_acpi_description_header;
46
47#endif
48