| /* |
| * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>. |
| * |
| * This program 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 2 of the |
| * License, or any later version. |
| * |
| * This program 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 this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| FILE_LICENCE ( GPL2_OR_LATER ); |
| |
| #include <gpxe/acpi.h> |
| |
| /** @file |
| * |
| * ACPI support functions |
| * |
| */ |
| |
| /** |
| * Fix up ACPI table checksum |
| * |
| * @v acpi ACPI table header |
| */ |
| void acpi_fix_checksum ( struct acpi_description_header *acpi ) { |
| unsigned int i = 0; |
| uint8_t sum = 0; |
| |
| for ( i = 0 ; i < acpi->length ; i++ ) { |
| sum += *( ( ( uint8_t * ) acpi ) + i ); |
| } |
| acpi->checksum -= sum; |
| } |
