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/*
* BTRFS filesystem implementation for U-Boot
*
* 2017 Marek Behun, CZ.NIC, marek.behun@nic.cz
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include "btrfs.h"
#include <u-boot/crc.h>
#include <asm/unaligned.h>
static u32 btrfs_crc32c_table[256];
void btrfs_hash_init(void)
{
static int inited = 0;
if (!inited) {
crc32c_init(btrfs_crc32c_table, 0x82F63B78);
inited = 1;
}
}
u32 btrfs_crc32c(u32 crc, const void *data, size_t length)
{
return crc32c_cal(crc, (const char *) data, length,
btrfs_crc32c_table);
}
u32 btrfs_csum_data(char *data, u32 seed, size_t len)
{
return btrfs_crc32c(seed, data, len);
}
void btrfs_csum_final(u32 crc, void *result)
{
put_unaligned(cpu_to_le32(~crc), (u32 *)result);
}
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