crc16-ccitt: Rename file with CRC-16-CCITT implementation to crc16-ccitt.c

U-Boot CRC-16 implementation uses polynomial x^16 + x^12 + x^5 + 1 which is
not standard CRC-16 algorithm, but it is known as CRC-16-CCITT. Rename file
crc16.c to crc16-ccitt.c to reduce confusion.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>

diff --git a/include/u-boot/crc.h b/include/u-boot/crc.h
index 52ec6a9e2d4b2d73d11b5be1c45b292aa5894d82..eba8edfb4f319348377de4d1198570e0beea1e42 100644 (file)
--- a/include/u-boot/crc.h
+++ b/include/u-boot/crc.h
@@ -25,7 +25,7 @@
  */
 unsigned int crc8(unsigned int crc_start, const unsigned char *vptr, int len);
 
-/* lib/crc16.c - 16 bit CRC with polynomial x^16+x^12+x^5+1 (CRC-CCITT) */
+/* lib/crc16-ccitt.c - 16 bit CRC with polynomial x^16+x^12+x^5+1 (CRC-CCITT) */
 uint16_t crc16_ccitt(uint16_t crc_start, const unsigned char *s, int len);
 /**
  * crc16_ccitt_wd_buf - Perform CRC16-CCIT on an input buffer and return the

diff --git a/lib/Makefile b/lib/Makefile
index 13fe5fb7a430620c538e12b532a7cd0325b2c2ed..cf662a765a474cbecd1f247bc05a8d364912c273 100644 (file)
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -35,7 +35,7 @@ obj-$(CONFIG_CIRCBUF) += circbuf.o
 endif
 
 obj-y += crc8.o
-obj-y += crc16.o
+obj-y += crc16-ccitt.o
 obj-$(CONFIG_ERRNO_STR) += errno_str.o
 obj-$(CONFIG_FIT) += fdtdec_common.o
 obj-$(CONFIG_TEST_FDTDEC) += fdtdec_test.o
@@ -91,9 +91,9 @@ obj-$(CONFIG_$(SPL_TPL_)OF_LIBFDT) += libfdt/
 obj-$(CONFIG_$(SPL_TPL_)OF_REAL) += fdtdec_common.o fdtdec.o
 
 ifdef CONFIG_SPL_BUILD
-obj-$(CONFIG_SPL_YMODEM_SUPPORT) += crc16.o
-obj-$(CONFIG_$(SPL_TPL_)HASH) += crc16.o
-obj-$(CONFIG_MMC_SPI_CRC_ON) += crc16.o
+obj-$(CONFIG_SPL_YMODEM_SUPPORT) += crc16-ccitt.o
+obj-$(CONFIG_$(SPL_TPL_)HASH) += crc16-ccitt.o
+obj-$(CONFIG_MMC_SPI_CRC_ON) += crc16-ccitt.o
 obj-y += net_utils.o
 endif
 obj-$(CONFIG_ADDR_MAP) += addr_map.o

diff --git a/lib/crc16-ccitt.c b/lib/crc16-ccitt.c
new file mode 100644 (file)
index 0000000..6cadbc1
--- /dev/null
+++ b/lib/crc16-ccitt.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: eCos-2.0
+/*
+ *==========================================================================
+ *
+ *      crc16-ccitt.c
+ *
+ *      16 bit CRC with polynomial x^16+x^12+x^5+1
+ *
+ *==========================================================================
+ *#####DESCRIPTIONBEGIN####
+ *
+ * Author(s):    gthomas
+ * Contributors: gthomas,asl
+ * Date:         2001-01-31
+ * Purpose:
+ * Description:
+ *
+ * This code is part of eCos (tm).
+ *
+ *####DESCRIPTIONEND####
+ *
+ *==========================================================================
+ */
+
+#ifdef USE_HOSTCC
+#include <arpa/inet.h>
+#else
+#include <common.h>
+#endif
+#include <u-boot/crc.h>
+
+/* Table of CRC constants - implements x^16+x^12+x^5+1 */
+static const uint16_t crc16_tab[] = {
+       0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
+       0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
+       0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
+       0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
+       0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
+       0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
+       0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
+       0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
+       0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
+       0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
+       0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
+       0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
+       0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
+       0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
+       0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
+       0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
+       0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
+       0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
+       0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
+       0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
+       0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
+       0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
+       0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
+       0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
+       0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
+       0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
+       0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
+       0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
+       0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
+       0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
+       0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
+       0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
+};
+
+uint16_t crc16_ccitt(uint16_t cksum, const unsigned char *buf, int len)
+{
+       for (int i = 0;  i < len;  i++)
+               cksum = crc16_tab[((cksum>>8) ^ *buf++) & 0xff] ^ (cksum << 8);
+
+       return cksum;
+}
+
+void crc16_ccitt_wd_buf(const uint8_t *in, uint len,
+                       uint8_t *out, uint chunk_sz)
+{
+       uint16_t crc;
+
+       crc = crc16_ccitt(0, in, len);
+       crc = htons(crc);
+       memcpy(out, &crc, sizeof(crc));
+}

diff --git a/lib/crc16.c b/lib/crc16.c
deleted file mode 100644 (file)
index f46ba72..0000000
--- a/lib/crc16.c
+++ /dev/null
@@ -1,84 +0,0 @@
-// SPDX-License-Identifier: eCos-2.0
-/*
- *==========================================================================
- *
- *      crc16.c
- *
- *      16 bit CRC with polynomial x^16+x^12+x^5+1
- *
- *==========================================================================
- *#####DESCRIPTIONBEGIN####
- *
- * Author(s):    gthomas
- * Contributors: gthomas,asl
- * Date:         2001-01-31
- * Purpose:
- * Description:
- *
- * This code is part of eCos (tm).
- *
- *####DESCRIPTIONEND####
- *
- *==========================================================================
- */
-
-#ifdef USE_HOSTCC
-#include <arpa/inet.h>
-#else
-#include <common.h>
-#endif
-#include <u-boot/crc.h>
-
-/* Table of CRC constants - implements x^16+x^12+x^5+1 */
-static const uint16_t crc16_tab[] = {
-       0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
-       0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
-       0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
-       0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
-       0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
-       0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
-       0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
-       0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
-       0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
-       0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
-       0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
-       0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
-       0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
-       0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
-       0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
-       0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
-       0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
-       0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
-       0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
-       0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
-       0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
-       0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
-       0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
-       0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
-       0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
-       0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
-       0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
-       0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
-       0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
-       0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
-       0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
-       0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
-};
-
-uint16_t crc16_ccitt(uint16_t cksum, const unsigned char *buf, int len)
-{
-       for (int i = 0;  i < len;  i++)
-               cksum = crc16_tab[((cksum>>8) ^ *buf++) & 0xff] ^ (cksum << 8);
-
-       return cksum;
-}
-
-void crc16_ccitt_wd_buf(const uint8_t *in, uint len,
-                       uint8_t *out, uint chunk_sz)
-{
-       uint16_t crc;
-
-       crc = crc16_ccitt(0, in, len);
-       crc = htons(crc);
-       memcpy(out, &crc, sizeof(crc));
-}

diff --git a/tools/Makefile b/tools/Makefile
index e17271be8bc157e77b545d8362de921f845ba4a2..9f2339666a7c9af92242866ca8e9e008ee495770 100644 (file)
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -132,7 +132,7 @@ dumpimage-mkimage-objs := aisimage.o \
                        $(ROCKCHIP_OBS) \
                        socfpgaimage.o \
                        sunxi_egon.o \
-                       lib/crc16.o \
+                       lib/crc16-ccitt.o \
                        lib/hash-checksum.o \
                        lib/sha1.o \
                        lib/sha256.o \