842.h (01b944fe1cd4e21a2a9ed51adbdbafe2d5e905ba) 842.h (ea0b3984c1cc8b28de27a3bec285102b4e366a4c)
1
2#ifndef __842_H__
3#define __842_H__
4
5/* The 842 compressed format is made up of multiple blocks, each of
6 * which have the format:
7 *
8 * <template>[arg1][arg2][arg3][arg4]

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71 * After all actions for each operation code are processed, another template
72 * code is in the next 5 bits. The decompression ends once the "end" template
73 * code is detected.
74 */
75
76#include <linux/module.h>
77#include <linux/kernel.h>
78#include <linux/bitops.h>
1
2#ifndef __842_H__
3#define __842_H__
4
5/* The 842 compressed format is made up of multiple blocks, each of
6 * which have the format:
7 *
8 * <template>[arg1][arg2][arg3][arg4]

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71 * After all actions for each operation code are processed, another template
72 * code is in the next 5 bits. The decompression ends once the "end" template
73 * code is detected.
74 */
75
76#include <linux/module.h>
77#include <linux/kernel.h>
78#include <linux/bitops.h>
79#include <linux/crc32.h>
79#include <asm/unaligned.h>
80
81#include <linux/sw842.h>
82
83/* special templates */
84#define OP_REPEAT (0x1B)
85#define OP_ZEROS (0x1C)
86#define OP_END (0x1E)

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93
94/* additional bits of each op param */
95#define OP_BITS (5)
96#define REPEAT_BITS (6)
97#define SHORT_DATA_BITS (3)
98#define I2_BITS (8)
99#define I4_BITS (9)
100#define I8_BITS (8)
80#include <asm/unaligned.h>
81
82#include <linux/sw842.h>
83
84/* special templates */
85#define OP_REPEAT (0x1B)
86#define OP_ZEROS (0x1C)
87#define OP_END (0x1E)

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94
95/* additional bits of each op param */
96#define OP_BITS (5)
97#define REPEAT_BITS (6)
98#define SHORT_DATA_BITS (3)
99#define I2_BITS (8)
100#define I4_BITS (9)
101#define I8_BITS (8)
102#define CRC_BITS (32)
101
102#define REPEAT_BITS_MAX (0x3f)
103#define SHORT_DATA_BITS_MAX (0x7)
104
105/* Arbitrary values used to indicate action */
106#define OP_ACTION (0x70)
107#define OP_ACTION_INDEX (0x10)
108#define OP_ACTION_DATA (0x20)

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104#define REPEAT_BITS_MAX (0x3f)
105#define SHORT_DATA_BITS_MAX (0x7)
106
107/* Arbitrary values used to indicate action */
108#define OP_ACTION (0x70)
109#define OP_ACTION_INDEX (0x10)
110#define OP_ACTION_DATA (0x20)

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