/***********************license start************************************
* Copyright (c) 2003-2017 Cavium, Inc.
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* License: one of 'Cavium License' or 'GNU General Public License Version 2'
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***********************license end**************************************/
#ifndef __ZIP_DEVICE_H__
#define __ZIP_DEVICE_H__
#include <linux/types.h>
#include "zip_main.h"
struct sg_info {
/*
* Pointer to the input data when scatter_gather == 0 and
* pointer to the input gather list buffer when scatter_gather == 1
*/
union zip_zptr_s *gather;
/*
* Pointer to the output data when scatter_gather == 0 and
* pointer to the output scatter list buffer when scatter_gather == 1
*/
union zip_zptr_s *scatter;
/*
* Holds size of the output buffer pointed by scatter list
* when scatter_gather == 1
*/
u64 scatter_buf_size;
/* for gather data */
u64 gather_enable;
/* for scatter data */
u64 scatter_enable;
/* Number of gather list pointers for gather data */
u32 gbuf_cnt;
/* Number of scatter list pointers for scatter data */
u32 sbuf_cnt;
/* Buffers allocation state */
u8 alloc_state;
};
/**
* struct zip_state - Structure representing the required information related
* to a command
* @zip_cmd: Pointer to zip instruction structure
* @result: Pointer to zip result structure
* @ctx: Context pointer for inflate
* @history: Decompression history pointer
* @sginfo: Scatter-gather info structure
*/
struct zip_state {
union zip_inst_s zip_cmd;
union zip_zres_s result;
union zip_zptr_s *ctx;
union zip_zptr_s *history;
struct sg_info sginfo;
};
#define ZIP_CONTEXT_SIZE 2048
#define ZIP_INFLATE_HISTORY_SIZE 32768
#define ZIP_DEFLATE_HISTORY_SIZE 32768
#endif
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