/* 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 <markus@oberhumer.com>

   *
   *  The full LZO package can be found at:
   *  http://www.oberhumer.com/opensource/lzo/
   *

   *  Changed for Linux kernel use by:

   *  Nitin Gupta <nitingupta910@gmail.com>
   *  Richard Purdie <rpurdie@openedhand.com>
   */

  #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