1#pragma once
2
3#include <uacpi/types.h>
4#include <uacpi/acpi.h>
5
6#ifdef __cplusplus
7extern "C" {
8#endif
9
10#ifndef UACPI_BAREBONES_MODE
11
12uacpi_status uacpi_gas_read(const struct acpi_gas *gas, uacpi_u64 *value);
13uacpi_status uacpi_gas_write(const struct acpi_gas *gas, uacpi_u64 value);
14
15typedef struct uacpi_mapped_gas uacpi_mapped_gas;
16
17/**
18 * Map a GAS for faster access in the future. The handle returned via
19 * 'out_mapped' must be freed & unmapped using uacpi_unmap_gas() when
20 * no longer needed.
21 */
22uacpi_status uacpi_map_gas(const struct acpi_gas *gas, uacpi_mapped_gas **out_mapped);
23void uacpi_unmap_gas(uacpi_mapped_gas*);
24
25/**
26 * Same as uacpi_gas_{read,write} but operates on a pre-mapped handle for faster
27 * access and/or ability to use in critical sections/irq contexts.
28 */
29uacpi_status uacpi_gas_read_mapped(const uacpi_mapped_gas *gas, uacpi_u64 *value);
30uacpi_status uacpi_gas_write_mapped(const uacpi_mapped_gas *gas, uacpi_u64 value);
31
32#endif // !UACPI_BAREBONES_MODE
33
34#ifdef __cplusplus
35}
36#endif
37