1 /* 2 * This file is part of the flashrom project. 3 * 4 * Copyright (C) 2016 secunet Security Networks AG 5 * (written by Thomas Heijligen <thomas.heijligen@secunet.com>) 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 */ 17 18 #include "platform.h" 19 20 /* 21 * macro to return endian aware read function 22 * 23 * `___read(le, 8)` 24 * expands to 25 * `uint8_t read_le8 (const void *const base, const size_t offset) 26 * { return le_to_cpu8 (*(uint8_t *)((uintptr_t)base + offset)); }` 27 */ 28 #define ___read(endian, bits) \ 29 uint##bits##_t read_##endian##bits (const void *const base, const size_t offset) \ 30 { return endian##_to_cpu##bits (*(uint##bits##_t *)((uintptr_t)base + offset)); } 31 32 /* read value from base at offset in little endian */ 33 ___read(le, 8) 34 ___read(le, 16) 35 ___read(le, 32) 36 ___read(le, 64) 37 38 /* read value from base at offset in big endian */ 39 ___read(be, 8) 40 ___read(be, 16) 41 ___read(be, 32) 42 ___read(be, 64) 43