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Merge branch '2023-12-21-header-inclusion-cleanup' into next
[J-u-boot.git] / lib / acpi / facs.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Write an ACPI Firmware ACPI Control Structure (FACS) table
4  *
5  * Copyright 2021 Google LLC
6  */
7
8 #define LOG_CATEGORY LOGC_ACPI
9
10 #include <acpi/acpi_table.h>
11 #include <dm/acpi.h>
12 #include <linux/string.h>
13
14 int acpi_write_facs(struct acpi_ctx *ctx, const struct acpi_writer *entry)
15 {
16         struct acpi_facs *facs = ctx->current;
17
18         memset((void *)facs, '\0', sizeof(struct acpi_facs));
19
20         memcpy(facs->signature, "FACS", 4);
21         facs->length = sizeof(struct acpi_facs);
22         facs->hardware_signature = 0;
23         facs->firmware_waking_vector = 0;
24         facs->global_lock = 0;
25         facs->flags = 0;
26         facs->x_firmware_waking_vector_l = 0;
27         facs->x_firmware_waking_vector_h = 0;
28         facs->version = 1;
29
30         ctx->facs = facs;
31         acpi_inc(ctx, sizeof(struct acpi_facs));
32
33         return 0;
34 }
35 ACPI_WRITER(1facs, "FACS", acpi_write_facs, 0);
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