crc: Add a CRC-24Q implementation

1 files changed, 42 insertions, 0 deletions

diff --git a/testsuites/unit/tc-crc.c b/testsuites/unit/tc-crc.c
new file mode 100644
index 0000000000..4ab0f4c882
--- /dev/null
+++ b/testsuites/unit/tc-crc.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/*
+ * Copyright (C) 2023 embedded brains GmbH & Co. KG
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <rtems/crc.h>
+
+#include <rtems/test.h>
+
+T_TEST_CASE(CRC24Q) {
+  uint32_t state = _CRC24Q_Update(CRC24Q_SEED, 0);
+  T_eq_u32(state, 0);
+  state = _CRC24Q_Update(CRC24Q_SEED, '1');
+  state = _CRC24Q_Update(state, '2');
+  state = _CRC24Q_Update(state, '3');
+  T_eq_u32(state & CRC24Q_MASK, 0x2c3045);
+  uint8_t bytes[] = {'1', '2', '3'};
+  state = _CRC24Q_Sequence_update(CRC24Q_SEED, &bytes[0], sizeof(bytes));
+  T_eq_u32(state & CRC24Q_MASK, 0x2c3045);
+}