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/*
* Copyright 2015, International Business Machines
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __ZEDC_DEFS_H__
#define __ZEDC_DEFS_H__
#include <stdint.h>
#include <stdio.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/syscall.h> /* For SYS_xxx definitions */
#include <libddcb.h>
#ifndef ARRAY_SIZE
# define ARRAY_SIZE(a) (sizeof((a)) / sizeof((a)[0]))
#endif
#ifndef ABS
# define ABS(a) (((a) < 0) ? -(a) : (a))
#endif
static inline pid_t gettid(void)
{
return (pid_t)syscall(SYS_gettid);
}
extern int zedc_dbg;
extern FILE *zedc_log;
#define pr_err(fmt, ...) do { \
if (zedc_log) \
fprintf(zedc_log, "%08x.%08x %s:%u: Error: " fmt, \
getpid(), gettid(), __FILE__, __LINE__, \
## __VA_ARGS__); \
} while (0)
#define pr_warn(fmt, ...) do { \
if (zedc_log) \
fprintf(zedc_log, "%08x.%08x %s:%u: Warn: " fmt, \
getpid(), gettid(), __FILE__, __LINE__, \
## __VA_ARGS__); \
} while (0)
#define pr_dbg(fmt, ...) do { \
if (zedc_log && zedc_dbg) \
fprintf(zedc_log, fmt, ## __VA_ARGS__); \
} while (0)
#define pr_info(fmt, ...) do { \
if (zedc_log && zedc_dbg) \
fprintf(zedc_log, "%08x.%08x %s:%u: Info: " fmt, \
getpid(), gettid(), __FILE__, __LINE__, \
## __VA_ARGS__); \
} while (0)
#define pr_log(dbg, fmt, ...) do { \
if (zedc_log && (dbg)) \
fprintf(zedc_log, "%08x.%08x %s:%u: Info: " fmt, \
getpid(), gettid(), __FILE__, __LINE__, \
## __VA_ARGS__); \
} while (0)
/******************************************************************************
* zEDC Support
*****************************************************************************/
/* zedc device descriptor */
struct zedc_dev_t {
int mode;
int zedc_rc; /* libzedc return codes; detailed info
* in cases were we needed to return.
*/
accel_t card; /* Ptr. to card */
int card_rc; /* libcard return codes */
int card_errno;
int collect_debug_data;
};
/**
* APP_ID:
* 0x00000000475a4950 old
* 0x00000002475a4950 new
* VV
* G Z I P
*/
static inline int is_zedc(zedc_handle_t zedc)
{
uint64_t app_id = accel_get_app_id(zedc->card);
return (app_id & 0xFFFFFFFF) == 0x475a4950;
}
static inline int dyn_huffman_supported(zedc_handle_t zedc)
{
uint64_t app_id = accel_get_app_id(zedc->card);
return (app_id & 0xFF00000000ull) >= 0x0200000000ull;
}
/*
* RFC1951
*
* BTYPE specifies how the data are compressed, as follows:
* 00 - no compression
* 01 - compressed with fixed Huffman codes
* 10 - compressed with dynamic Huffman codes
* 11 - reserved (error)
*
* E.g. fixed Header 01, read from left ...
*
* RFC1951 End-Of-Block Marker = %000_0000
*/
#define HDR_BTYPE_NO 0x00
#define HDR_BTYPE_FIXED 0x02
#define HDR_BTYPE_DYN 0x04
#define HDR_BTYPE_RES 0x06
#define HDR_BFINAL 0x01
#define FIXED_EOB 0x00 /* 7 bits 0s */
/* RFC1952 GZIP */
#define FTEXT 0x01
#define FHCRC 0x02
#define FEXTRA 0x04
#define FNAME 0x08
#define FCOMMENT 0x10
#define FNAME_MAXLEN 64 /* ensure that we do not overflow our FIFO */
#define FCOMMENT_MAXLEN 64 /* ensure that we do not overflow our FIFO */
/**
* @brief manage execution of an inflate or a deflate job
* @param zedc ZEDC device handle
* @param cmd pointer to command descriptor
*/
int zedc_execute_request(zedc_handle_t zedc, struct ddcb_cmd *cmd);
int zedc_alloc_workspace(zedc_streamp strm);
int zedc_free_workspace(zedc_streamp strm);
void zedc_asv_infl_print(zedc_streamp strm);
void zedc_asiv_infl_print(zedc_streamp strm);
void zedc_asv_defl_print(zedc_streamp strm, int dbg);
void zedc_asiv_defl_print(zedc_streamp strm, int dbg);
/**
* @brief Prepare format specific deflate header when user
* calls initializes decompression.
* provided window_bits:
* 8 .... 15: ZLIB / RFC1950 (window size 2^8 ... 2^15)
* -8 ... -15: DEFLATE / RFC1951 (window size 2^8 ... 2^15)
* >= 16: GZIP / RFC1952
*/
int zedc_format_init(struct zedc_stream_s *strm);
unsigned long __adler32(unsigned long adl, const unsigned char *buf, int len);
#endif /* __ZEDC_DEFS_H__ */
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