1 /* acpi.c - get acpi tables. */
3 * GRUB -- GRand Unified Bootloader
4 * Copyright (C) 2009 Free Software Foundation, Inc.
6 * GRUB is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * GRUB is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
20 #include <grub/acpi.h>
21 #include <grub/misc.h>
22 #include <grub/efi/efi.h>
23 #include <grub/efi/api.h>
25 struct grub_acpi_rsdp_v10
*
26 grub_machine_acpi_get_rsdpv1 (void)
29 static grub_efi_guid_t acpi_guid
= GRUB_EFI_ACPI_TABLE_GUID
;
31 for (i
= 0; i
< grub_efi_system_table
->num_table_entries
; i
++)
33 grub_efi_guid_t
*guid
=
34 &grub_efi_system_table
->configuration_table
[i
].vendor_guid
;
36 if (! grub_memcmp (guid
, &acpi_guid
, sizeof (grub_efi_guid_t
)))
37 return (struct grub_acpi_rsdp_v10
*)
38 grub_efi_system_table
->configuration_table
[i
].vendor_table
;
43 struct grub_acpi_rsdp_v20
*
44 grub_machine_acpi_get_rsdpv2 (void)
47 static grub_efi_guid_t acpi20_guid
= GRUB_EFI_ACPI_20_TABLE_GUID
;
49 for (i
= 0; i
< grub_efi_system_table
->num_table_entries
; i
++)
51 grub_efi_guid_t
*guid
=
52 &grub_efi_system_table
->configuration_table
[i
].vendor_guid
;
54 if (! grub_memcmp (guid
, &acpi20_guid
, sizeof (grub_efi_guid_t
)))
55 return (struct grub_acpi_rsdp_v20
*)
56 grub_efi_system_table
->configuration_table
[i
].vendor_table
;