/* acpi.c - get acpi tables. */ /* * GRUB -- GRand Unified Bootloader * Copyright (C) 2009 Free Software Foundation, Inc. * * GRUB is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * GRUB is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GRUB. If not, see <http://www.gnu.org/licenses/>. */ #include <grub/acpi.h> #include <grub/misc.h> #include <grub/efi/efi.h> #include <grub/efi/api.h> struct grub_acpi_rsdp_v10 * grub_machine_acpi_get_rsdpv1 (void) { unsigned i; static grub_efi_guid_t acpi_guid = GRUB_EFI_ACPI_TABLE_GUID; for (i = 0; i < grub_efi_system_table->num_table_entries; i++) { grub_efi_guid_t *guid = &grub_efi_system_table->configuration_table[i].vendor_guid; if (! grub_memcmp (guid, &acpi_guid, sizeof (grub_efi_guid_t))) return (struct grub_acpi_rsdp_v10 *) grub_efi_system_table->configuration_table[i].vendor_table; } return 0; } struct grub_acpi_rsdp_v20 * grub_machine_acpi_get_rsdpv2 (void) { unsigned i; static grub_efi_guid_t acpi20_guid = GRUB_EFI_ACPI_20_TABLE_GUID; for (i = 0; i < grub_efi_system_table->num_table_entries; i++) { grub_efi_guid_t *guid = &grub_efi_system_table->configuration_table[i].vendor_guid; if (! grub_memcmp (guid, &acpi20_guid, sizeof (grub_efi_guid_t))) return (struct grub_acpi_rsdp_v20 *) grub_efi_system_table->configuration_table[i].vendor_table; } return 0; }