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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/linux/crc8.h
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Initial import of qemu-2.4.1HEADmaster
Diffstat (limited to 'roms/u-boot/include/linux/crc8.h')
-rw-r--r--roms/u-boot/include/linux/crc8.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/roms/u-boot/include/linux/crc8.h b/roms/u-boot/include/linux/crc8.h
new file mode 100644
index 00000000..b5fd2ac9
--- /dev/null
+++ b/roms/u-boot/include/linux/crc8.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+
+#ifndef __linux_crc8_h
+#define __linux_crc8_h
+
+/**
+ * crc8() - Calculate and return CRC-8 of the data
+ *
+ * This uses an x^8 + x^2 + x + 1 polynomial. A table-based algorithm would
+ * be faster, but for only a few bytes it isn't worth the code size
+ *
+ * @vptr: Buffer to checksum
+ * @len: Length of buffer in bytes
+ * @return CRC8 checksum
+ */
+unsigned int crc8(const unsigned char *vptr, int len);
+
+#endif