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-rw-r--r--ubi-utils/old-tools/src/crc32.c83
1 files changed, 0 insertions, 83 deletions
diff --git a/ubi-utils/old-tools/src/crc32.c b/ubi-utils/old-tools/src/crc32.c
deleted file mode 100644
index 666e217..0000000
--- a/ubi-utils/old-tools/src/crc32.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright (c) International Business Machines Corp., 2006
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Author: Thomas Gleixner
- */
-
-/*
- * CRC32 functions
- *
- * Can be compiled as seperate object, but is included into the ipl source
- * so gcc can inline the functions. We optimize for size so the omission of
- * the function frame is helpful.
- *
- */
-
-#include <stdint.h>
-#include <crc32.h>
-
-/* CRC polynomial */
-#define CRC_POLY 0xEDB88320
-
-/**
- * init_crc32_table - Initialize crc table
- *
- * @table: pointer to the CRC table which must be initialized
- *
- * Create CRC32 table for given polynomial. The table is created with
- * the lowest order term in the highest order bit. So the x^32 term
- * has to implied in the crc calculation function.
- */
-void init_crc32_table(uint32_t *table)
-{
- uint32_t crc;
- int i, j;
-
- for (i = 0; i < 256; i++) {
- crc = i;
- for (j = 8; j > 0; j--) {
- if (crc & 1)
- crc = (crc >> 1) ^ CRC_POLY;
- else
- crc >>= 1;
- }
- table[i] = crc;
- }
-}
-
-/**
- * clc_crc32 - Calculate CRC32 over a buffer
- *
- * @table: pointer to the CRC table
- * @crc: initial crc value
- * @buf: pointer to the buffer
- * @len: number of bytes to calc
- *
- * Returns the updated crc value.
- *
- * The algorithm resembles a hardware shift register, but calculates 8
- * bit at once.
- */
-uint32_t clc_crc32(uint32_t *table, uint32_t crc, void *buf,
- int len)
-{
- const unsigned char *p = buf;
-
- while(--len >= 0)
- crc = table[(crc ^ *p++) & 0xff] ^ (crc >> 8);
- return crc;
-}