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The following commit(s) were added to refs/heads/master by this push:
new 38e474b0c5 libc: add CRC-8-ROHC support
38e474b0c5 is described below
commit 38e474b0c5f08dd06e3b33ae51089dd6c76a0083
Author: yinshengkai <[email protected]>
AuthorDate: Thu May 30 16:53:35 2024 +0800
libc: add CRC-8-ROHC support
Signed-off-by: yinshengkai <[email protected]>
---
include/nuttx/crc8.h | 12 ++++++
libs/libc/misc/CMakeLists.txt | 1 +
libs/libc/misc/Make.defs | 4 +-
libs/libc/misc/lib_crc8rohc.c | 90 +++++++++++++++++++++++++++++++++++++++++++
4 files changed, 105 insertions(+), 2 deletions(-)
diff --git a/include/nuttx/crc8.h b/include/nuttx/crc8.h
index ab2ea07027..98c5e2d6dc 100644
--- a/include/nuttx/crc8.h
+++ b/include/nuttx/crc8.h
@@ -106,6 +106,18 @@ uint8_t crc8ccitt(FAR const uint8_t *src, size_t len);
uint8_t crc8ccittpart(FAR const uint8_t *src, size_t len, uint8_t crc8val);
+/****************************************************************************
+ * Name: crc8rohcpart
+ ****************************************************************************/
+
+uint8_t crc8rohcpart(FAR const uint8_t *src, size_t len, uint8_t crc8val);
+
+/****************************************************************************
+ * Name: crc8rohc
+ ****************************************************************************/
+
+uint8_t crc8rohc(FAR const uint8_t *src, size_t len);
+
#undef EXTERN
#ifdef __cplusplus
}
diff --git a/libs/libc/misc/CMakeLists.txt b/libs/libc/misc/CMakeLists.txt
index 02a487888f..869dcccc5b 100644
--- a/libs/libc/misc/CMakeLists.txt
+++ b/libs/libc/misc/CMakeLists.txt
@@ -83,6 +83,7 @@ list(
lib_crc16ccitt.c
lib_crc8.c
lib_crc8ccitt.c
+ lib_crc8rohc.c
lib_crc8table.c
lib_glob.c
lib_backtrace.c
diff --git a/libs/libc/misc/Make.defs b/libs/libc/misc/Make.defs
index 42b4ecb68d..41257184e6 100644
--- a/libs/libc/misc/Make.defs
+++ b/libs/libc/misc/Make.defs
@@ -42,8 +42,8 @@ endif
CSRCS += lib_dumpbuffer.c lib_dumpvbuffer.c lib_fnmatch.c lib_debug.c
CSRCS += lib_crc64.c lib_crc32.c lib_crc16.c lib_crc16ccitt.c lib_crc8.c
-CSRCS += lib_crc8ccitt.c lib_crc8table.c lib_glob.c lib_backtrace.c
-CSRCS += lib_ftok.c lib_err.c lib_instrument.c
+CSRCS += lib_crc8ccitt.c lib_crc8table.c lib_crc8rohc.c lib_glob.c
+CSRCS += lib_backtrace.c lib_ftok.c lib_err.c lib_instrument.c
# Keyboard driver encoder/decoder
diff --git a/libs/libc/misc/lib_crc8rohc.c b/libs/libc/misc/lib_crc8rohc.c
new file mode 100644
index 0000000000..890cece456
--- /dev/null
+++ b/libs/libc/misc/lib_crc8rohc.c
@@ -0,0 +1,90 @@
+/****************************************************************************
+ * libs/libc/misc/lib_crc8rohc.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/types.h>
+#include <stdint.h>
+
+#include <nuttx/crc8.h>
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const uint8_t g_crc8_tab[256] =
+{
+ 0x00, 0x91, 0xe3, 0x72, 0x07, 0x96, 0xe4, 0x75,
+ 0x0e, 0x9f, 0xed, 0x7c, 0x09, 0x98, 0xea, 0x7b,
+ 0x1c, 0x8d, 0xff, 0x6e, 0x1b, 0x8a, 0xf8, 0x69,
+ 0x12, 0x83, 0xf1, 0x60, 0x15, 0x84, 0xf6, 0x67,
+ 0x38, 0xa9, 0xdb, 0x4a, 0x3f, 0xae, 0xdc, 0x4d,
+ 0x36, 0xa7, 0xd5, 0x44, 0x31, 0xa0, 0xd2, 0x43,
+ 0x24, 0xb5, 0xc7, 0x56, 0x23, 0xb2, 0xc0, 0x51,
+ 0x2a, 0xbb, 0xc9, 0x58, 0x2d, 0xbc, 0xce, 0x5f,
+ 0x70, 0xe1, 0x93, 0x02, 0x77, 0xe6, 0x94, 0x05,
+ 0x7e, 0xef, 0x9d, 0x0c, 0x79, 0xe8, 0x9a, 0x0b,
+ 0x6c, 0xfd, 0x8f, 0x1e, 0x6b, 0xfa, 0x88, 0x19,
+ 0x62, 0xf3, 0x81, 0x10, 0x65, 0xf4, 0x86, 0x17,
+ 0x48, 0xd9, 0xab, 0x3a, 0x4f, 0xde, 0xac, 0x3d,
+ 0x46, 0xd7, 0xa5, 0x34, 0x41, 0xd0, 0xa2, 0x33,
+ 0x54, 0xc5, 0xb7, 0x26, 0x53, 0xc2, 0xb0, 0x21,
+ 0x5a, 0xcb, 0xb9, 0x28, 0x5d, 0xcc, 0xbe, 0x2f,
+ 0xe0, 0x71, 0x03, 0x92, 0xe7, 0x76, 0x04, 0x95,
+ 0xee, 0x7f, 0x0d, 0x9c, 0xe9, 0x78, 0x0a, 0x9b,
+ 0xfc, 0x6d, 0x1f, 0x8e, 0xfb, 0x6a, 0x18, 0x89,
+ 0xf2, 0x63, 0x11, 0x80, 0xf5, 0x64, 0x16, 0x87,
+ 0xd8, 0x49, 0x3b, 0xaa, 0xdf, 0x4e, 0x3c, 0xad,
+ 0xd6, 0x47, 0x35, 0xa4, 0xd1, 0x40, 0x32, 0xa3,
+ 0xc4, 0x55, 0x27, 0xb6, 0xc3, 0x52, 0x20, 0xb1,
+ 0xca, 0x5b, 0x29, 0xb8, 0xcd, 0x5c, 0x2e, 0xbf,
+ 0x90, 0x01, 0x73, 0xe2, 0x97, 0x06, 0x74, 0xe5,
+ 0x9e, 0x0f, 0x7d, 0xec, 0x99, 0x08, 0x7a, 0xeb,
+ 0x8c, 0x1d, 0x6f, 0xfe, 0x8b, 0x1a, 0x68, 0xf9,
+ 0x82, 0x13, 0x61, 0xf0, 0x85, 0x14, 0x66, 0xf7,
+ 0xa8, 0x39, 0x4b, 0xda, 0xaf, 0x3e, 0x4c, 0xdd,
+ 0xa6, 0x37, 0x45, 0xd4, 0xa1, 0x30, 0x42, 0xd3,
+ 0xb4, 0x25, 0x57, 0xc6, 0xb3, 0x22, 0x50, 0xc1,
+ 0xba, 0x2b, 0x59, 0xc8, 0xbd, 0x2c, 0x5e, 0xcf
+};
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: crc8rohcpart
+ ****************************************************************************/
+
+uint8_t crc8rohcpart(FAR const uint8_t *src, size_t len, uint8_t crc8val)
+{
+ return crc8table(g_crc8_tab, src, len, crc8val);
+}
+
+/****************************************************************************
+ * Name: crc8rohc
+ ****************************************************************************/
+
+uint8_t crc8rohc(FAR const uint8_t *src, size_t len)
+{
+ return crc8rohcpart(src, len, 0xff);
+}
