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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef __LZO_H__
- #define __LZO_H__
- /*
- * LZO Public Kernel Interface
- * A mini subset of the LZO real-time data compression library
- *
- * Copyright (C) 1996-2012 Markus F.X.J. Oberhumer <[email protected]>
- *
- * The full LZO package can be found at:
- * http://www.oberhumer.com/opensource/lzo/
- *
- * Changed for Linux kernel use by:
- * Nitin Gupta <[email protected]>
- * Richard Purdie <[email protected]>
- */
- #define LZO1X_1_MEM_COMPRESS (8192 * sizeof(unsigned short))
- #define LZO1X_MEM_COMPRESS LZO1X_1_MEM_COMPRESS
- #define lzo1x_worst_compress(x) ((x) + ((x) / 16) + 64 + 3 + 2)
- /* This requires 'wrkmem' of size LZO1X_1_MEM_COMPRESS */
- int lzo1x_1_compress(const unsigned char *src, size_t src_len,
- unsigned char *dst, size_t *dst_len, void *wrkmem);
- /* This requires 'wrkmem' of size LZO1X_1_MEM_COMPRESS */
- int lzorle1x_1_compress(const unsigned char *src, size_t src_len,
- unsigned char *dst, size_t *dst_len, void *wrkmem);
- /* safe decompression with overrun testing */
- int lzo1x_decompress_safe(const unsigned char *src, size_t src_len,
- unsigned char *dst, size_t *dst_len);
- /*
- * Return values (< 0 = Error)
- */
- #define LZO_E_OK 0
- #define LZO_E_ERROR (-1)
- #define LZO_E_OUT_OF_MEMORY (-2)
- #define LZO_E_NOT_COMPRESSIBLE (-3)
- #define LZO_E_INPUT_OVERRUN (-4)
- #define LZO_E_OUTPUT_OVERRUN (-5)
- #define LZO_E_LOOKBEHIND_OVERRUN (-6)
- #define LZO_E_EOF_NOT_FOUND (-7)
- #define LZO_E_INPUT_NOT_CONSUMED (-8)
- #define LZO_E_NOT_YET_IMPLEMENTED (-9)
- #define LZO_E_INVALID_ARGUMENT (-10)
- #endif
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