1/***********************license start************************************ 2 * Copyright (c) 2003-2017 Cavium, Inc. 3 * All rights reserved. 4 * 5 * License: one of 'Cavium License' or 'GNU General Public License Version 2' 6 * 7 * This file is provided under the terms of the Cavium License (see below) 8 * or under the terms of GNU General Public License, Version 2, as 9 * published by the Free Software Foundation. When using or redistributing 10 * this file, you may do so under either license. 11 * 12 * Cavium License: Redistribution and use in source and binary forms, with 13 * or without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * * Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 19 * * Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials provided 22 * with the distribution. 23 * 24 * * Neither the name of Cavium Inc. nor the names of its contributors may be 25 * used to endorse or promote products derived from this software without 26 * specific prior written permission. 27 * 28 * This Software, including technical data, may be subject to U.S. export 29 * control laws, including the U.S. Export Administration Act and its 30 * associated regulations, and may be subject to export or import 31 * regulations in other countries. 32 * 33 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 34 * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS 35 * OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH 36 * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY 37 * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT 38 * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) 39 * WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A 40 * PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET 41 * ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE 42 * ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES 43 * WITH YOU. 44 ***********************license end**************************************/ 45 46#ifndef __COMMON_H__ 47#define __COMMON_H__ 48 49#include <linux/delay.h> 50#include <linux/init.h> 51#include <linux/interrupt.h> 52#include <linux/io.h> 53#include <linux/kernel.h> 54#include <linux/module.h> 55#include <linux/pci.h> 56#include <linux/seq_file.h> 57#include <linux/string.h> 58#include <linux/types.h> 59 60/* Device specific zlib function definitions */ 61#include "zip_device.h" 62 63/* ZIP device definitions */ 64#include "zip_main.h" 65 66/* ZIP memory allocation/deallocation related definitions */ 67#include "zip_mem.h" 68 69/* Device specific structure definitions */ 70#include "zip_regs.h" 71 72#define ZIP_ERROR -1 73 74#define ZIP_FLUSH_FINISH 4 75 76#define RAW_FORMAT 0 /* for rawpipe */ 77#define ZLIB_FORMAT 1 /* for zpipe */ 78#define GZIP_FORMAT 2 /* for gzpipe */ 79#define LZS_FORMAT 3 /* for lzspipe */ 80 81/* Max number of ZIP devices supported */ 82#define MAX_ZIP_DEVICES 2 83 84/* Configures the number of zip queues to be used */ 85#define ZIP_NUM_QUEUES 2 86 87#define DYNAMIC_STOP_EXCESS 1024 88 89/* Maximum buffer sizes in direct mode */ 90#define MAX_INPUT_BUFFER_SIZE (64 * 1024) 91#define MAX_OUTPUT_BUFFER_SIZE (64 * 1024) 92 93/** 94 * struct zip_operation - common data structure for comp and decomp operations 95 * @input: Next input byte is read from here 96 * @output: Next output byte written here 97 * @ctx_addr: Inflate context buffer address 98 * @history: Pointer to the history buffer 99 * @input_len: Number of bytes available at next_in 100 * @input_total_len: Total number of input bytes read 101 * @output_len: Remaining free space at next_out 102 * @output_total_len: Total number of bytes output so far 103 * @csum: Checksum value of the uncompressed data 104 * @flush: Flush flag 105 * @format: Format (depends on stream's wrap) 106 * @speed: Speed depends on stream's level 107 * @ccode: Compression code ( stream's strategy) 108 * @lzs_flag: Flag for LZS support 109 * @begin_file: Beginning of file indication for inflate 110 * @history_len: Size of the history data 111 * @end_file: Ending of the file indication for inflate 112 * @compcode: Completion status of the ZIP invocation 113 * @bytes_read: Input bytes read in current instruction 114 * @bits_processed: Total bits processed for entire file 115 * @sizeofptr: To distinguish between ILP32 and LP64 116 * @sizeofzops: Optional just for padding 117 * 118 * This structure is used to maintain the required meta data for the 119 * comp and decomp operations. 120 */ 121struct zip_operation { 122 u8 *input; 123 u8 *output; 124 u64 ctx_addr; 125 u64 history; 126 127 u32 input_len; 128 u32 input_total_len; 129 130 u32 output_len; 131 u32 output_total_len; 132 133 u32 csum; 134 u32 flush; 135 136 u32 format; 137 u32 speed; 138 u32 ccode; 139 u32 lzs_flag; 140 141 u32 begin_file; 142 u32 history_len; 143 144 u32 end_file; 145 u32 compcode; 146 u32 bytes_read; 147 u32 bits_processed; 148 149 u32 sizeofptr; 150 u32 sizeofzops; 151}; 152 153static inline int zip_poll_result(union zip_zres_s *result) 154{ 155 int retries = 1000; 156 157 while (!result->s.compcode) { 158 if (!--retries) { 159 pr_err("ZIP ERR: request timed out"); 160 return -ETIMEDOUT; 161 } 162 udelay(10); 163 /* 164 * Force re-reading of compcode which is updated 165 * by the ZIP coprocessor. 166 */ 167 rmb(); 168 } 169 return 0; 170} 171 172/* error messages */ 173#define zip_err(fmt, args...) pr_err("ZIP ERR:%s():%d: " \ 174 fmt "\n", __func__, __LINE__, ## args) 175 176#ifdef MSG_ENABLE 177/* Enable all messages */ 178#define zip_msg(fmt, args...) pr_info("ZIP_MSG:" fmt "\n", ## args) 179#else 180#define zip_msg(fmt, args...) 181#endif 182 183#if defined(ZIP_DEBUG_ENABLE) && defined(MSG_ENABLE) 184 185#ifdef DEBUG_LEVEL 186 187#define FILE_NAME (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : \ 188 strrchr(__FILE__, '\\') ? strrchr(__FILE__, '\\') + 1 : __FILE__) 189 190#if DEBUG_LEVEL >= 4 191 192#define zip_dbg(fmt, args...) pr_info("ZIP DBG: %s: %s() : %d: " \ 193 fmt "\n", FILE_NAME, __func__, __LINE__, ## args) 194 195#elif DEBUG_LEVEL >= 3 196 197#define zip_dbg(fmt, args...) pr_info("ZIP DBG: %s: %s() : %d: " \ 198 fmt "\n", FILE_NAME, __func__, __LINE__, ## args) 199 200#elif DEBUG_LEVEL >= 2 201 202#define zip_dbg(fmt, args...) pr_info("ZIP DBG: %s() : %d: " \ 203 fmt "\n", __func__, __LINE__, ## args) 204 205#else 206 207#define zip_dbg(fmt, args...) pr_info("ZIP DBG:" fmt "\n", ## args) 208 209#endif /* DEBUG LEVEL >=4 */ 210 211#else 212 213#define zip_dbg(fmt, args...) pr_info("ZIP DBG:" fmt "\n", ## args) 214 215#endif /* DEBUG_LEVEL */ 216#else 217 218#define zip_dbg(fmt, args...) 219 220#endif /* ZIP_DEBUG_ENABLE && MSG_ENABLE*/ 221 222#endif 223