crc64.h

/*
 * Copyright 2008-2012 Freescale Semiconductor Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Freescale Semiconductor nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 *
 * ALTERNATIVELY, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") as published by the Free Software
 * Foundation, either version 2 of that License or (at your option) any
 * later version.
 *
 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``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 Freescale Semiconductor BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 * 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.
 */


 /**************************************************************************//**
 @File          crc64.h

 @Description   brief This file contains the CRC64 Table, and __inline__
                functions used for calculating crc.
*//***************************************************************************/
#ifndef __CRC64_H
#define __CRC64_H

#include "std_ext.h"


#define BITS_PER_BYTE                   8

#define CRC64_EXPON_ECMA_182            0xC96C5795D7870F42ULL
#define CRC64_DEFAULT_INITVAL           0xFFFFFFFFFFFFFFFFULL

#define CRC64_BYTE_MASK                 0xFF
#define CRC64_TABLE_ENTRIES             ( 1 << BITS_PER_BYTE )
#define CRC64_ODD_MASK                  1


/**
 \brief '64 bit crc' Table
 */
struct crc64_t {
    uint64_t initial;                       /**< Initial seed */
    uint64_t table[CRC64_TABLE_ENTRIES];    /**< CRC table entries */
};


static struct crc64_t CRC64_ECMA_182 = {
    CRC64_DEFAULT_INITVAL,
    {
        0x0000000000000000ULL,
        0xb32e4cbe03a75f6fULL,
        0xf4843657a840a05bULL,
        0x47aa7ae9abe7ff34ULL,
        0x7bd0c384ff8f5e33ULL,
        0xc8fe8f3afc28015cULL,
        0x8f54f5d357cffe68ULL,
        0x3c7ab96d5468a107ULL,
        0xf7a18709ff1ebc66ULL,
        0x448fcbb7fcb9e309ULL,
        0x0325b15e575e1c3dULL,
        0xb00bfde054f94352ULL,
        0x8c71448d0091e255ULL,
        0x3f5f08330336bd3aULL,
        0x78f572daa8d1420eULL,
        0xcbdb3e64ab761d61ULL,
        0x7d9ba13851336649ULL,
        0xceb5ed8652943926ULL,
        0x891f976ff973c612ULL,
        0x3a31dbd1fad4997dULL,
        0x064b62bcaebc387aULL,
        0xb5652e02ad1b6715ULL,
        0xf2cf54eb06fc9821ULL,
        0x41e11855055bc74eULL,
        0x8a3a2631ae2dda2fULL,
        0x39146a8fad8a8540ULL,
        0x7ebe1066066d7a74ULL,
        0xcd905cd805ca251bULL,
        0xf1eae5b551a2841cULL,
        0x42c4a90b5205db73ULL,
        0x056ed3e2f9e22447ULL,
        0xb6409f5cfa457b28ULL,
        0xfb374270a266cc92ULL,
        0x48190ecea1c193fdULL,
        0x0fb374270a266cc9ULL,
        0xbc9d3899098133a6ULL,
        0x80e781f45de992a1ULL,
        0x33c9cd4a5e4ecdceULL,
        0x7463b7a3f5a932faULL,
        0xc74dfb1df60e6d95ULL,
        0x0c96c5795d7870f4ULL,
        0xbfb889c75edf2f9bULL,
        0xf812f32ef538d0afULL,
        0x4b3cbf90f69f8fc0ULL,
        0x774606fda2f72ec7ULL,
        0xc4684a43a15071a8ULL,
        0x83c230aa0ab78e9cULL,
        0x30ec7c140910d1f3ULL,
        0x86ace348f355aadbULL,
        0x3582aff6f0f2f5b4ULL,
        0x7228d51f5b150a80ULL,
        0xc10699a158b255efULL,
        0xfd7c20cc0cdaf4e8ULL,
        0x4e526c720f7dab87ULL,
        0x09f8169ba49a54b3ULL,
        0xbad65a25a73d0bdcULL,
        0x710d64410c4b16bdULL,
        0xc22328ff0fec49d2ULL,
        0x85895216a40bb6e6ULL,
        0x36a71ea8a7ace989ULL,
        0x0adda7c5f3c4488eULL,
        0xb9f3eb7bf06317e1ULL,
        0xfe5991925b84e8d5ULL,
        0x4d77dd2c5823b7baULL,
        0x64b62bcaebc387a1ULL,
        0xd7986774e864d8ceULL,
        0x90321d9d438327faULL,
        0x231c512340247895ULL,
        0x1f66e84e144cd992ULL,
        0xac48a4f017eb86fdULL,
        0xebe2de19bc0c79c9ULL,
        0x58cc92a7bfab26a6ULL,
        0x9317acc314dd3bc7ULL,
        0x2039e07d177a64a8ULL,
        0x67939a94bc9d9b9cULL,
        0xd4bdd62abf3ac4f3ULL,
        0xe8c76f47eb5265f4ULL,
        0x5be923f9e8f53a9bULL,
        0x1c4359104312c5afULL,
        0xaf6d15ae40b59ac0ULL,
        0x192d8af2baf0e1e8ULL,
        0xaa03c64cb957be87ULL,
        0xeda9bca512b041b3ULL,
        0x5e87f01b11171edcULL,
        0x62fd4976457fbfdbULL,
        0xd1d305c846d8e0b4ULL,
        0x96797f21ed3f1f80ULL,
        0x2557339fee9840efULL,
        0xee8c0dfb45ee5d8eULL,
        0x5da24145464902e1ULL,
        0x1a083bacedaefdd5ULL,
        0xa9267712ee09a2baULL,
        0x955cce7fba6103bdULL,
        0x267282c1b9c65cd2ULL,
        0x61d8f8281221a3e6ULL,
        0xd2f6b4961186fc89ULL,
        0x9f8169ba49a54b33ULL,
        0x2caf25044a02145cULL,
        0x6b055fede1e5eb68ULL,
        0xd82b1353e242b407ULL,
        0xe451aa3eb62a1500ULL,
        0x577fe680b58d4a6fULL,
        0x10d59c691e6ab55bULL,
        0xa3fbd0d71dcdea34ULL,
        0x6820eeb3b6bbf755ULL,
        0xdb0ea20db51ca83aULL,
        0x9ca4d8e41efb570eULL,
        0x2f8a945a1d5c0861ULL,
        0x13f02d374934a966ULL,
        0xa0de61894a93f609ULL,
        0xe7741b60e174093dULL,
        0x545a57dee2d35652ULL,
        0xe21ac88218962d7aULL,
        0x5134843c1b317215ULL,
        0x169efed5b0d68d21ULL,
        0xa5b0b26bb371d24eULL,
        0x99ca0b06e7197349ULL,
        0x2ae447b8e4be2c26ULL,
        0x6d4e3d514f59d312ULL,
        0xde6071ef4cfe8c7dULL,
        0x15bb4f8be788911cULL,
        0xa6950335e42fce73ULL,
        0xe13f79dc4fc83147ULL,
        0x521135624c6f6e28ULL,
        0x6e6b8c0f1807cf2fULL,
        0xdd45c0b11ba09040ULL,
        0x9aefba58b0476f74ULL,
        0x29c1f6e6b3e0301bULL,
        0xc96c5795d7870f42ULL,
        0x7a421b2bd420502dULL,
        0x3de861c27fc7af19ULL,
        0x8ec62d7c7c60f076ULL,
        0xb2bc941128085171ULL,
        0x0192d8af2baf0e1eULL,
        0x4638a2468048f12aULL,
        0xf516eef883efae45ULL,
        0x3ecdd09c2899b324ULL,
        0x8de39c222b3eec4bULL,
        0xca49e6cb80d9137fULL,
        0x7967aa75837e4c10ULL,
        0x451d1318d716ed17ULL,
        0xf6335fa6d4b1b278ULL,
        0xb199254f7f564d4cULL,
        0x02b769f17cf11223ULL,
        0xb4f7f6ad86b4690bULL,
        0x07d9ba1385133664ULL,
        0x4073c0fa2ef4c950ULL,
        0xf35d8c442d53963fULL,
        0xcf273529793b3738ULL,
        0x7c0979977a9c6857ULL,
        0x3ba3037ed17b9763ULL,
        0x888d4fc0d2dcc80cULL,
        0x435671a479aad56dULL,
        0xf0783d1a7a0d8a02ULL,
        0xb7d247f3d1ea7536ULL,
        0x04fc0b4dd24d2a59ULL,
        0x3886b22086258b5eULL,
        0x8ba8fe9e8582d431ULL,
        0xcc0284772e652b05ULL,
        0x7f2cc8c92dc2746aULL,
        0x325b15e575e1c3d0ULL,
        0x8175595b76469cbfULL,
        0xc6df23b2dda1638bULL,
        0x75f16f0cde063ce4ULL,
        0x498bd6618a6e9de3ULL,
        0xfaa59adf89c9c28cULL,
        0xbd0fe036222e3db8ULL,
        0x0e21ac88218962d7ULL,
        0xc5fa92ec8aff7fb6ULL,
        0x76d4de52895820d9ULL,
        0x317ea4bb22bfdfedULL,
        0x8250e80521188082ULL,
        0xbe2a516875702185ULL,
        0x0d041dd676d77eeaULL,
        0x4aae673fdd3081deULL,
        0xf9802b81de97deb1ULL,
        0x4fc0b4dd24d2a599ULL,
        0xfceef8632775faf6ULL,
        0xbb44828a8c9205c2ULL,
        0x086ace348f355aadULL,
        0x34107759db5dfbaaULL,
        0x873e3be7d8faa4c5ULL,
        0xc094410e731d5bf1ULL,
        0x73ba0db070ba049eULL,
        0xb86133d4dbcc19ffULL,
        0x0b4f7f6ad86b4690ULL,
        0x4ce50583738cb9a4ULL,
        0xffcb493d702be6cbULL,
        0xc3b1f050244347ccULL,
        0x709fbcee27e418a3ULL,
        0x3735c6078c03e797ULL,
        0x841b8ab98fa4b8f8ULL,
        0xadda7c5f3c4488e3ULL,
        0x1ef430e13fe3d78cULL,
        0x595e4a08940428b8ULL,
        0xea7006b697a377d7ULL,
        0xd60abfdbc3cbd6d0ULL,
        0x6524f365c06c89bfULL,
        0x228e898c6b8b768bULL,
        0x91a0c532682c29e4ULL,
        0x5a7bfb56c35a3485ULL,
        0xe955b7e8c0fd6beaULL,
        0xaeffcd016b1a94deULL,
        0x1dd181bf68bdcbb1ULL,
        0x21ab38d23cd56ab6ULL,
        0x9285746c3f7235d9ULL,
        0xd52f0e859495caedULL,
        0x6601423b97329582ULL,
        0xd041dd676d77eeaaULL,
        0x636f91d96ed0b1c5ULL,
        0x24c5eb30c5374ef1ULL,
        0x97eba78ec690119eULL,
        0xab911ee392f8b099ULL,
        0x18bf525d915feff6ULL,
        0x5f1528b43ab810c2ULL,
        0xec3b640a391f4fadULL,
        0x27e05a6e926952ccULL,
        0x94ce16d091ce0da3ULL,
        0xd3646c393a29f297ULL,
        0x604a2087398eadf8ULL,
        0x5c3099ea6de60cffULL,
        0xef1ed5546e415390ULL,
        0xa8b4afbdc5a6aca4ULL,
        0x1b9ae303c601f3cbULL,
        0x56ed3e2f9e224471ULL,
        0xe5c372919d851b1eULL,
        0xa26908783662e42aULL,
        0x114744c635c5bb45ULL,
        0x2d3dfdab61ad1a42ULL,
        0x9e13b115620a452dULL,
        0xd9b9cbfcc9edba19ULL,
        0x6a978742ca4ae576ULL,
        0xa14cb926613cf817ULL,
        0x1262f598629ba778ULL,
        0x55c88f71c97c584cULL,
        0xe6e6c3cfcadb0723ULL,
        0xda9c7aa29eb3a624ULL,
        0x69b2361c9d14f94bULL,
        0x2e184cf536f3067fULL,
        0x9d36004b35545910ULL,
        0x2b769f17cf112238ULL,
        0x9858d3a9ccb67d57ULL,
        0xdff2a94067518263ULL,
        0x6cdce5fe64f6dd0cULL,
        0x50a65c93309e7c0bULL,
        0xe388102d33392364ULL,
        0xa4226ac498dedc50ULL,
        0x170c267a9b79833fULL,
        0xdcd7181e300f9e5eULL,
        0x6ff954a033a8c131ULL,
        0x28532e49984f3e05ULL,
        0x9b7d62f79be8616aULL,
        0xa707db9acf80c06dULL,
        0x14299724cc279f02ULL,
        0x5383edcd67c06036ULL,
        0xe0ada17364673f59ULL
    }
};


/**
 \brief Initializes the crc seed
 */
static __inline__ uint64_t crc64_init(void)
{
    return CRC64_ECMA_182.initial;
}

/**
 \brief Computes 64 bit the crc
 \param[in] data Pointer to the Data in the frame
 \param[in] len Length of the Data
 \param[in] crc seed
 \return calculated crc
 */
static __inline__ uint64_t crc64_compute(void const *data,
                                         uint32_t   len,
                                         uint64_t   seed)
{
    uint32_t i;
    uint64_t crc = seed;
    uint8_t *bdata = (uint8_t *) data;

    for (i = 0; i < len; i++)
        crc =
            CRC64_ECMA_182.
            table[(crc ^ *bdata++) & CRC64_BYTE_MASK] ^ (crc >> 8);

    return crc;
}


#endif /* __CRC64_H */