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authorfishsoupisgood <github@madingley.org>2019-04-29 01:17:54 +0100
committerfishsoupisgood <github@madingley.org>2019-05-27 03:43:43 +0100
commit3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch)
tree65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/include/crc.h
downloadqemu-master.tar.gz
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Initial import of qemu-2.4.1HEADmaster
Diffstat (limited to 'roms/u-boot/include/crc.h')
-rw-r--r--roms/u-boot/include/crc.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/roms/u-boot/include/crc.h b/roms/u-boot/include/crc.h
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+/*
+ *==========================================================================
+ *
+ * crc.h
+ *
+ * Interface for the CRC algorithms.
+ *
+ *==========================================================================
+ * SPDX-License-Identifier: eCos-2.0
+ *==========================================================================
+ *#####DESCRIPTIONBEGIN####
+ *
+ * Author(s): Andrew Lunn
+ * Contributors: Andrew Lunn
+ * Date: 2002-08-06
+ * Purpose:
+ * Description:
+ *
+ * This code is part of eCos (tm).
+ *
+ *####DESCRIPTIONEND####
+ *
+ *==========================================================================
+ */
+
+#ifndef _SERVICES_CRC_CRC_H_
+#define _SERVICES_CRC_CRC_H_
+
+#include <linux/types.h>
+
+#ifndef __externC
+# ifdef __cplusplus
+# define __externC extern "C"
+# else
+# define __externC extern
+# endif
+#endif
+
+/* Compute a CRC, using the POSIX 1003 definition */
+extern uint32_t
+cyg_posix_crc32(unsigned char *s, int len);
+
+/* Gary S. Brown's 32 bit CRC */
+
+extern uint32_t
+cyg_crc32(unsigned char *s, int len);
+
+/* Gary S. Brown's 32 bit CRC, but accumulate the result from a */
+/* previous CRC calculation */
+
+extern uint32_t
+cyg_crc32_accumulate(uint32_t crc, unsigned char *s, int len);
+
+/* Ethernet FCS Algorithm */
+
+extern uint32_t
+cyg_ether_crc32(unsigned char *s, int len);
+
+/* Ethernet FCS algorithm, but accumulate the result from a previous */
+/* CRC calculation. */
+
+extern uint32_t
+cyg_ether_crc32_accumulate(uint32_t crc, unsigned char *s, int len);
+
+/* 16 bit CRC with polynomial x^16+x^12+x^5+1 */
+
+extern uint16_t cyg_crc16(unsigned char *s, int len);
+
+#endif /* _SERVICES_CRC_CRC_H_ */