LXR uboot/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 <common.h>
  11#include <acpi/acpi_table.h>
  12#include <dm/acpi.h>
  13
  14int 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}
  35ACPI_WRITER(1facs, "FACS", acpi_write_facs, 0);
  36