1 /*
2 * Copyright (c) 2025 Renesas Electronics Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6 #include <zephyr/drivers/crc.h>
7 #include <zephyr/ztest.h>
8 #include <zephyr/logging/log.h>
9 #include <zephyr/sys/crc.h>
10
11 /* Define result of CRC computation */
12 #define RESULT_CRC8 0xB2
13
14 /**
15 * @brief Test crc8 works
16 */
ZTEST(crc_subsys,test_crc_8)17 ZTEST(crc_subsys, test_crc_8)
18 {
19 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
20
21 zassert_equal(crc8(data, sizeof(data), CRC8_REFLECT_POLY, 0x00, true), RESULT_CRC8);
22 }
23
24 /* Define result of CRC computation */
25 #define RESULT_CRC8_CCITT 0x4D
26
27 /**
28 * @brief Test crc8_ccitt works
29 */
ZTEST(crc_subsys,test_crc_8_ccitt)30 ZTEST(crc_subsys, test_crc_8_ccitt)
31 {
32 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
33
34 zassert_equal(crc8_ccitt(0x00, data, sizeof(data)), RESULT_CRC8_CCITT);
35 }
36
37 /* Define result of CRC computation */
38 #define RESULT_CRC8_ROHC 0xB2
39
40 /**
41 * @brief Test that crc_8_rohc works
42 */
ZTEST(crc_subsys,test_crc_8_rohc)43 ZTEST(crc_subsys, test_crc_8_rohc)
44 {
45 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
46
47 zassert_equal(crc8_rohc(0x00, data, sizeof(data)), RESULT_CRC8_ROHC);
48 }
49
50 /* Define result of CRC computation */
51 #define RESULT_CRC16 0xE58F
52
53 /**
54 * @brief Test that crc_16 works
55 */
ZTEST(crc_subsys,test_crc_16)56 ZTEST(crc_subsys, test_crc_16)
57 {
58 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
59
60 zassert_equal(crc16(CRC16_POLY, CRC16_INIT_VAL, data, sizeof(data)), RESULT_CRC16);
61 }
62 /* Define result of CRC computation */
63 #define RESULT_CRC16_REFLECT 0xD543
64
65 /**
66 * @brief Test that crc_16_reflect works
67 */
ZTEST(crc_subsys,test_crc_16_reflect)68 ZTEST(crc_subsys, test_crc_16_reflect)
69 {
70 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
71
72 zassert_equal(crc16_reflect(CRC16_REFLECT_POLY, CRC16_INIT_VAL, data, sizeof(data)),
73 RESULT_CRC16_REFLECT);
74 }
75
76 /* Define result of CRC computation */
77 #define RESULT_CRC16_ANSI 0xDE03
78
79 /**
80 * @brief Test that crc_16_ansi works
81 */
ZTEST(crc_subsys,test_crc_16_ansi)82 ZTEST(crc_subsys, test_crc_16_ansi)
83 {
84 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
85
86 zassert_equal(crc16_ansi(data, sizeof(data)), RESULT_CRC16_ANSI);
87 }
88
89 /* Define result of CRC computation */
90 #define RESULT_CRC_CCITT 0x445C
91
92 /**
93 * @brief Test that crc_16_ccitt works
94 */
ZTEST(crc_subsys,test_crc_16_ccitt)95 ZTEST(crc_subsys, test_crc_16_ccitt)
96 {
97 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
98
99 zassert_equal(crc16_ccitt(0x0000, data, sizeof(data)), RESULT_CRC_CCITT);
100 }
101
102 /* Define result of CRC computation */
103 #define RESULT_CRC16_ITU_T 0x8866
104
105 /**
106 * @brief Test that crc_16_itu_t works
107 */
ZTEST(crc_subsys,test_crc_16_itu_t)108 ZTEST(crc_subsys, test_crc_16_itu_t)
109 {
110 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
111
112 zassert_equal(crc16_itu_t(0x0000, data, sizeof(data)), RESULT_CRC16_ITU_T);
113 }
114
115 /* Define result of CRC computation */
116 #define RESULT_CRC32_C 0xBB19ECB2
117
118 /**
119 * @brief Test that crc32_c works
120 */
ZTEST(crc_subsys,test_crc_32_c)121 ZTEST(crc_subsys, test_crc_32_c)
122 {
123 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
124
125 zassert_equal(crc32_c(0x000, data, sizeof(data), true, false), RESULT_CRC32_C);
126 }
127 /* Define result of CRC computation */
128 #define RESULT_CRC32_IEEE 0xCEA4A6C2
129
130 /**
131 * @brief Test that crc_32_ieee works
132 */
ZTEST(crc_subsys,test_crc_32_ieee)133 ZTEST(crc_subsys, test_crc_32_ieee)
134 {
135 uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
136
137 zassert_equal(crc32_ieee(data, sizeof(data)), RESULT_CRC32_IEEE);
138 }
139
140 /* Define result of CRC computation */
141 #define RESULT_CRC8_CCITT_REMAIN_1 0x57
142
143 /**
144 * @brief Test crc8_ccitt_remain_1 work
145 */
ZTEST(crc_subsys,test_crc_8_ccitt_remain_1)146 ZTEST(crc_subsys, test_crc_8_ccitt_remain_1)
147 {
148 uint8_t data[9] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4, 0x3D};
149
150 zassert_equal(crc8_ccitt(0x00, data, sizeof(data)), RESULT_CRC8_CCITT_REMAIN_1);
151 }
152
153 /* Define result of CRC computation */
154 #define RESULT_CRC8_ROHC_REMAIN_2 0x4F
155
156 /**
157 * @brief Test that crc_8_rohc_remain_2 works
158 */
ZTEST(crc_subsys,test_crc_8_rohc_remain_2)159 ZTEST(crc_subsys, test_crc_8_rohc_remain_2)
160 {
161 uint8_t data[10] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4, 0x3D, 0xFF};
162
163 zassert_equal(crc8_rohc(0x00, data, sizeof(data)), RESULT_CRC8_ROHC_REMAIN_2);
164 }
165
166 /* Define result of CRC computation */
167 #define RESULT_CRC_CCITT_REMAIN_3 0x454B
168
169 /**
170 * @brief Test that crc_16_ccitt_remain_3 works
171 */
ZTEST(crc_subsys,test_crc_16_ccitt_remain_3)172 ZTEST(crc_subsys, test_crc_16_ccitt_remain_3)
173 {
174 uint8_t data[11] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4, 0x3D, 0xFF, 0xE2};
175
176 zassert_equal(crc16_ccitt(0x0000, data, sizeof(data)), RESULT_CRC_CCITT_REMAIN_3);
177 }
178
179 /* Define result of CRC computation */
180 #define RESULT_CRC16_ITU_T_REMAIN_1 0x917E
181
182 /**
183 * @brief Test that crc_16_itu_t_remain_1 works
184 */
ZTEST(crc_subsys,test_crc_16_itu_t_remain_1)185 ZTEST(crc_subsys, test_crc_16_itu_t_remain_1)
186 {
187 uint8_t data[9] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4, 0x3D};
188
189 zassert_equal(crc16_itu_t(0x0000, data, sizeof(data)), RESULT_CRC16_ITU_T_REMAIN_1);
190 }
191
192 ZTEST_SUITE(crc_subsys, NULL, NULL, NULL, NULL, NULL);
193
