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00001 /* 00002 * Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors 00003 * to the MC1322x project (http://mc1322x.devl.org) 00004 * All rights reserved. 00005 * 00006 * Redistribution and use in source and binary forms, with or without 00007 * modification, are permitted provided that the following conditions 00008 * are met: 00009 * 1. Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * 2. Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * 3. Neither the name of the Institute nor the names of its contributors 00015 * may be used to endorse or promote products derived from this software 00016 * without specific prior written permission. 00017 * 00018 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 00019 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00020 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00021 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 00022 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00023 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00024 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00025 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00026 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00027 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00028 * SUCH DAMAGE. 00029 * 00030 * This file is part of libmc1322x: see http://mc1322x.devl.org 00031 * for details. 00032 * 00033 * 00034 */ 00035 00036 #ifndef UTILS_H 00037 #define UTILS_H 00038 00039 #define mem32(x) ((volatile uint32_t *)(x)) 00040 #define mem16(x) ((volatile uint16_t *)(x)) 00041 00042 #define CAT2(x, y, z) x##y##z 00043 00044 #define STR(x) #x 00045 #define STR2(x) STR(x) 00046 00047 #define bit(bit) (1 << bit) 00048 #define bit_is_set(val, bit) (((val & (1 << bit)) >> bit) == 1) 00049 #define clear_bit(val, bit) (val = (val & ~(1 << bit))) 00050 #define set_bit(val, bit) (val = (val | (1 << bit))) 00051 00052 #define ones(num) ( (1ULL << num) - 1 ) 00053 #define bit_mask(length, shift) (ones(length) << shift) 00054 #define get_field(val, field) ((val & field##_MASK) >> field) 00055 //#define bitfield(name, length, shift) ( #define #name length #define #name##_MASK bit_mask(length, shift)) 00056 #define bitfield(name, length, shift) ( define #name length ) 00057 00058 #endif /* UTILS_H */