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Diffstat (limited to 'include/linux/crc64_ecma.h')
-rw-r--r-- | include/linux/crc64_ecma.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/linux/crc64_ecma.h b/include/linux/crc64_ecma.h new file mode 100644 index 000000000000..bba7a4d692b3 --- /dev/null +++ b/include/linux/crc64_ecma.h @@ -0,0 +1,56 @@ +/* + * Copyright 2013 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; + * 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. + */ + +#ifndef __CRC64_ECMA_H_ +#define __CRC64_ECMA_H_ + +#include <linux/types.h> + + +#define CRC64_DEFAULT_INITVAL 0xFFFFFFFFFFFFFFFFULL + + +/* + * crc64_ecma_seed - Initializes the CRC64 ECMA seed. + */ +u64 crc64_ecma_seed(void); + +/* + * crc64_ecma - Computes the 64 bit ECMA CRC. + * + * @pdata: pointer to the data to compute checksum for. + * @nbytes: number of bytes in data buffer. + * @seed: CRC seed. + */ +u64 crc64_ecma(u8 const *pdata, u32 nbytes, u64 seed); + +#endif /* __CRC64_ECMA_H_ */ |