diff options
| author | Jeremy Kerr <jk@ozlabs.org> | 2017-06-06 16:08:39 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-09 11:52:07 +0200 |
| commit | 0cbaa44841db3d06d2a21ae4ab679882033f3dbe (patch) | |
| tree | c400ed524386505865c81fe8f11396f98e529c48 /include/linux/crc4.h | |
| parent | 414c1026319bc10796a868c1fa0ba312c4ca9e67 (diff) | |
lib: Add crc4 module
Add a little helper for crc4 calculations. This works 4-bits-at-a-time,
using a simple table approach.
We will need this in the FSI core code, as well as any master
implementations that need to calculate CRCs in software.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Chris Bostic <cbostic@linux.vnet.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/crc4.h')
| -rw-r--r-- | include/linux/crc4.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/crc4.h b/include/linux/crc4.h new file mode 100644 index 000000000000..8f739f1d794f --- /dev/null +++ b/include/linux/crc4.h @@ -0,0 +1,8 @@ +#ifndef _LINUX_CRC4_H +#define _LINUX_CRC4_H + +#include <linux/types.h> + +extern uint8_t crc4(uint8_t c, uint64_t x, int bits); + +#endif /* _LINUX_CRC4_H */ |