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 __ZIP_DEVICE_H__ |
47 | #define __ZIP_DEVICE_H__ |
48 | |
49 | #include <linux/types.h> |
50 | #include "zip_main.h" |
51 | |
52 | struct sg_info { |
53 | /* |
54 | * Pointer to the input data when scatter_gather == 0 and |
55 | * pointer to the input gather list buffer when scatter_gather == 1 |
56 | */ |
57 | union zip_zptr_s *gather; |
58 | |
59 | /* |
60 | * Pointer to the output data when scatter_gather == 0 and |
61 | * pointer to the output scatter list buffer when scatter_gather == 1 |
62 | */ |
63 | union zip_zptr_s *scatter; |
64 | |
65 | /* |
66 | * Holds size of the output buffer pointed by scatter list |
67 | * when scatter_gather == 1 |
68 | */ |
69 | u64 scatter_buf_size; |
70 | |
71 | /* for gather data */ |
72 | u64 gather_enable; |
73 | |
74 | /* for scatter data */ |
75 | u64 scatter_enable; |
76 | |
77 | /* Number of gather list pointers for gather data */ |
78 | u32 gbuf_cnt; |
79 | |
80 | /* Number of scatter list pointers for scatter data */ |
81 | u32 sbuf_cnt; |
82 | |
83 | /* Buffers allocation state */ |
84 | u8 alloc_state; |
85 | }; |
86 | |
87 | /** |
88 | * struct zip_state - Structure representing the required information related |
89 | * to a command |
90 | * @zip_cmd: Pointer to zip instruction structure |
91 | * @result: Pointer to zip result structure |
92 | * @ctx: Context pointer for inflate |
93 | * @history: Decompression history pointer |
94 | * @sginfo: Scatter-gather info structure |
95 | */ |
96 | struct zip_state { |
97 | union zip_inst_s zip_cmd; |
98 | union zip_zres_s result; |
99 | union zip_zptr_s *ctx; |
100 | union zip_zptr_s *history; |
101 | struct sg_info sginfo; |
102 | }; |
103 | |
104 | #define ZIP_CONTEXT_SIZE 2048 |
105 | #define ZIP_INFLATE_HISTORY_SIZE 32768 |
106 | #define ZIP_DEFLATE_HISTORY_SIZE 32768 |
107 | |
108 | #endif |
109 | |