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initial mc1322x commit

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based on commit aac3a355451d899f02737f2907af8c874ee4feba of

git://git.devl.org/git/malvira/contiki-mc1322x.git
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maralvira 2010-06-10 14:55:39 +00:00
parent 285f508cc9
commit 419906a769
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cpu/mc1322x/lib/include/utils.h Normal file
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/*
* Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
* to the MC1322x project (http://mc1322x.devl.org)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of libmc1322x: see http://mc1322x.devl.org
* for details.
*
* $Id: utils.h,v 1.1 2010/06/10 14:55:39 maralvira Exp $
*/
#ifndef UTILS_H
#define UTILS_H
#define mem32(x) ((volatile uint32_t *)(x))
#define mem16(x) ((volatile uint16_t *)(x))
#define CAT2(x, y, z) x##y##z
#define STR(x) #x
#define STR2(x) STR(x)
#define bit(bit) (1 << bit)
#define bit_is_set(val, bit) (((val & (1 << bit)) >> bit) == 1)
#define clear_bit(val, bit) (val = (val & ~(1 << bit)))
#define set_bit(val, bit) (val = (val | (1 << bit)))
#define ones(num) ( (1ULL << num) - 1 )
#define bit_mask(length, shift) (ones(length) << shift)
#define get_field(val, field) ((val & field##_MASK) >> field)
//#define bitfield(name, length, shift) ( #define #name length #define #name##_MASK bit_mask(length, shift))
#define bitfield(name, length, shift) ( define #name length )
#endif /* UTILS_H */