| /* |
| * Copyright (c) 2017 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/ztest.h> |
| #include <zephyr/sys/crc.h> |
| #include "../../../lib/crc/crc8_sw.c" |
| #include "../../../lib/crc/crc16_sw.c" |
| #include "../../../lib/crc/crc32_sw.c" |
| #include "../../../lib/crc/crc32c_sw.c" |
| #include "../../../lib/crc/crc7_sw.c" |
| |
| ZTEST(crc, test_crc32c) |
| { |
| uint8_t test1[] = { 'A' }; |
| uint8_t test2[] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' }; |
| uint8_t test3[] = { 'Z', 'e', 'p', 'h', 'y', 'r' }; |
| |
| /* Single streams */ |
| zassert_equal(crc32_c(0, test1, sizeof(test1), true, true), |
| 0xE16DCDEE, NULL); |
| zassert_equal(crc32_c(0, test2, sizeof(test2), true, true), |
| 0xE3069283, NULL); |
| zassert_equal(crc32_c(0, test3, sizeof(test3), true, true), |
| 0xFCDEB58D, NULL); |
| |
| /* Continuous streams - test1, test2 and test3 are considered part |
| * of one big stream whose CRC needs to be calculated. Note that the |
| * CRC of the first string is passed over to the second crc calculation, |
| * second to third and so on. |
| */ |
| zassert_equal(crc32_c(0, test1, sizeof(test1), true, false), |
| 0x1E923211, NULL); |
| zassert_equal(crc32_c(0x1E923211, test2, sizeof(test2), false, false), |
| 0xB2983B83, NULL); |
| zassert_equal(crc32_c(0xB2983B83, test3, sizeof(test3), false, true), |
| 0x7D4F9D21, NULL); |
| } |
| |
| ZTEST(crc, test_crc32_ieee) |
| { |
| uint8_t test1[] = { 'A' }; |
| uint8_t test2[] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' }; |
| uint8_t test3[] = { 'Z', 'e', 'p', 'h', 'y', 'r' }; |
| |
| zassert_equal(crc32_ieee(test1, sizeof(test1)), 0xD3D99E8B); |
| zassert_equal(crc32_ieee(test2, sizeof(test2)), 0xCBF43926); |
| zassert_equal(crc32_ieee(test3, sizeof(test3)), 0x20089AA4); |
| } |
| |
| ZTEST(crc, test_crc16) |
| { |
| uint8_t test[] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' }; |
| |
| /* CRC-16/CCITT, CRC-16/CCITT-TRUE, CRC-16/KERMIT |
| * https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-kermit |
| * check=0x2189 |
| * poly is 0x1021, reflected 0x8408 |
| */ |
| zassert_equal(crc16_reflect(0x8408, 0x0, test, sizeof(test)), 0x2189); |
| |
| /* CRC-16/DECT-X |
| * https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-dect-x |
| * check=0x007f |
| */ |
| zassert_equal(crc16(0x0589, 0x0, test, sizeof(test)), 0x007f); |
| } |
| |
| ZTEST(crc, test_crc16_ansi) |
| { |
| uint8_t test[] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' }; |
| |
| uint16_t crc16_c = crc16_ansi(test, sizeof(test)); |
| |
| /* CRC-16/ANSI, CRC-16/MODBUS, CRC-16/USB, CRC-16/IBM |
| * https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-modbus |
| * check=0x4b37 |
| * poly is 0x1021, reflected 0xA001 |
| */ |
| zassert_equal(crc16_c, 0x4b37); |
| zassert_equal(crc16_reflect(0xA001, 0xffff, test, sizeof(test)), crc16_c); |
| } |
| |
| ZTEST(crc, test_crc16_ccitt) |
| { |
| uint8_t test0[] = { }; |
| uint8_t test1[] = { 'A' }; |
| uint8_t test2[] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' }; |
| uint8_t test3[] = { 'Z', 'e', 'p', 'h', 'y', 'r', 0, 0 }; |
| uint16_t crc; |
| |
| zassert_equal(crc16_ccitt(0, test0, sizeof(test0)), 0x0); |
| zassert_equal(crc16_ccitt(0, test1, sizeof(test1)), 0x538d); |
| /* CRC-16/CCITT, CRC-16/CCITT-TRUE, CRC-16/KERMIT |
| * https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-kermit |
| * check=0x2189 |
| */ |
| zassert_equal(crc16_ccitt(0, test2, sizeof(test2)), 0x2189); |
| /* CRC-16/X-25, CRC-16/IBM-SDLC, CRC-16/ISO-HDLC |
| * https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-ibm-sdlc |
| * check=0x906e |
| */ |
| zassert_equal(crc16_ccitt(0xffff, test2, sizeof(test2)) ^ 0xffff, |
| 0x906e, NULL); |
| |
| /* Appending the CRC to a buffer and computing the CRC over |
| * the extended buffer leaves a residual of zero. |
| */ |
| crc = crc16_ccitt(0, test3, sizeof(test3) - sizeof(uint16_t)); |
| test3[sizeof(test3)-2] = (uint8_t)(crc >> 0); |
| test3[sizeof(test3)-1] = (uint8_t)(crc >> 8); |
| |
| zassert_equal(crc16_ccitt(0, test3, sizeof(test3)), 0); |
| } |
| |
| ZTEST(crc, test_crc16_ccitt_for_ppp) |
| { |
| /* Example capture including FCS from |
| * https://www.horo.ch/techno/ppp-fcs/examples_en.html |
| */ |
| uint8_t test0[] = { |
| 0xff, 0x03, 0xc0, 0x21, 0x01, 0x01, 0x00, 0x17, |
| 0x02, 0x06, 0x00, 0x0a, 0x00, 0x00, 0x05, 0x06, |
| 0x00, 0x2a, 0x2b, 0x78, 0x07, 0x02, 0x08, 0x02, |
| 0x0d, 0x03, 0x06, 0xa5, 0xf8 |
| }; |
| uint8_t test2[] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' }; |
| |
| zassert_equal(crc16_ccitt(0xffff, test0, sizeof(test0)), |
| 0xf0b8, NULL); |
| zassert_equal(crc16_ccitt(0xffff, test2, sizeof(test2)) ^ 0xFFFF, |
| 0x906e, NULL); |
| } |
| |
| ZTEST(crc, test_crc16_itu_t) |
| { |
| uint8_t test2[] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' }; |
| |
| /* CRC-16/XMODEM, CRC-16/ACORN, CRC-16/LTE |
| * https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-xmodem |
| * check=0x31c3 |
| */ |
| zassert_equal(crc16_itu_t(0, test2, sizeof(test2)), 0x31c3); |
| /* CRC16/CCITT-FALSE, CRC-16/IBM-3740, CRC-16/AUTOSAR |
| * https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-ibm-3740 |
| * check=0x29b1 |
| */ |
| zassert_equal(crc16_itu_t(0xffff, test2, sizeof(test2)), 0x29b1); |
| /* CRC-16/GSM |
| * https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-gsm |
| * check=0xce3c |
| */ |
| zassert_equal(crc16_itu_t(0, test2, sizeof(test2)) ^ 0xffff, 0xce3c); |
| |
| } |
| |
| ZTEST(crc, test_crc8_ccitt) |
| { |
| uint8_t test0[] = { 0 }; |
| uint8_t test1[] = { 'A' }; |
| uint8_t test2[] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' }; |
| |
| zassert(crc8_ccitt(CRC8_CCITT_INITIAL_VALUE, test0, |
| sizeof(test0)) == 0xF3, "pass", "fail"); |
| zassert(crc8_ccitt(CRC8_CCITT_INITIAL_VALUE, test1, |
| sizeof(test1)) == 0x33, "pass", "fail"); |
| zassert(crc8_ccitt(CRC8_CCITT_INITIAL_VALUE, test2, |
| sizeof(test2)) == 0xFB, "pass", "fail"); |
| } |
| |
| ZTEST(crc, test_crc7_be) |
| { |
| uint8_t test0[] = { 0 }; |
| uint8_t test1[] = { 'A' }; |
| uint8_t test2[] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' }; |
| |
| zassert_equal(crc7_be(0, test0, sizeof(test0)), 0); |
| zassert_equal(crc7_be(0, test1, sizeof(test1)), 0xDA); |
| zassert_equal(crc7_be(0, test2, sizeof(test2)), 0xEA); |
| } |
| |
| ZTEST(crc, test_crc8) |
| { |
| uint8_t fcs, expected; |
| |
| uint8_t test0[] = { 0x00 }; |
| uint8_t test1[] = { 0xBE, 0xEF }; |
| uint8_t test2[] = { 0x07, 0x3F }; /* GSM 07.10 example */ |
| uint8_t test3[] = { 0x07, 0x3F, 0x89 }; /* GSM 07.10 example */ |
| uint8_t test4[] = { 0x03, 0x02, 0x0A, 0x38, 0x17, 0x00 }; |
| uint8_t test5[] = { 0x03, 0x3f, 0x01, 0x1c }; /* Our GSM 07.10 calc */ |
| |
| fcs = crc8(test0, sizeof(test0), 0x00, 0x00, false); |
| expected = 0x00; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test0, sizeof(test0), 0x31, 0x00, false); |
| expected = 0x00; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test1, sizeof(test1), 0x07, 0x00, false); |
| expected = 0x1a; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test1, sizeof(test1), 0x31, 0xff, false); |
| expected = 0x92; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test1, sizeof(test1), 0x07, 0x00, false); |
| expected = 0x1a; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test2, sizeof(test2), 0x31, 0x00, false); |
| expected = 0x45; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test2, sizeof(test2), 0x31, 0xff, false); |
| expected = 0xc4; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test2, sizeof(test2), 0x07, 0x00, false); |
| expected = 0xd6; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test2, sizeof(test2), 0x07, 0xff, false); |
| expected = 0x01; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test2, sizeof(test2), 0xe0, 0xff, true); |
| expected = 0x76; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test3, sizeof(test3), 0xe0, 0xff, true); |
| expected = 0xcf; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test3, sizeof(test3), 0x07, 0xff, false); |
| expected = 0xb1; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test4, sizeof(test4), 0x31, 0x00, false); |
| expected = 0x3a; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test4, sizeof(test4), 0x07, 0x00, false); |
| expected = 0xaf; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test4, sizeof(test4), 0x9b, 0xff, false); |
| expected = 0xf0; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test4, sizeof(test4), 0x1d, 0xfd, false); |
| expected = 0x49; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| |
| fcs = crc8(test5, sizeof(test5), 0xe0, 0xff, true); |
| expected = 0xcf; |
| zassert_equal(fcs, expected, "0x%02x vs 0x%02x", fcs, expected); |
| } |
| |
| ZTEST_SUITE(crc, NULL, NULL, NULL, NULL, NULL); |
