diff options
| author |   Dan Streetman <ddstreet@ieee.org> | 2015-05-07 13:49:14 -0400 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2015-05-11 15:06:43 +0800 |
| commit | 2da572c959dd5815aef153cf62010b16a498a0d3 (patch) | |
| tree | c7718528d3539ff0e470448d28e6f094a7f70659 /include | |
| parent | powerpc: Add ICSWX instruction (diff) | |
| download | linux-dev-2da572c959dd5815aef153cf62010b16a498a0d3.tar.xz linux-dev-2da572c959dd5815aef153cf62010b16a498a0d3.zip | |
lib: add software 842 compression/decompression
Add 842-format software compression and decompression functions.
Update the MAINTAINERS 842 section to include the new files.
The 842 compression function can compress any input data into the 842
compression format. The 842 decompression function can decompress any
standard-format 842 compressed data - specifically, either a compressed
data buffer created by the 842 software compression function, or a
compressed data buffer created by the 842 hardware compressor (located
in PowerPC coprocessors).
The 842 compressed data format is explained in the header comments.
This is used in a later patch to provide a full software 842 compression
and decompression crypto interface.
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sw842.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/sw842.h b/include/linux/sw842.h new file mode 100644 index 000000000000..109ba041c2ae --- /dev/null +++ b/include/linux/sw842.h @@ -0,0 +1,12 @@ +#ifndef __SW842_H__ +#define __SW842_H__ + +#define SW842_MEM_COMPRESS (0xf000) + +int sw842_compress(const u8 *src, unsigned int srclen, + u8 *dst, unsigned int *destlen, void *wmem); + +int sw842_decompress(const u8 *src, unsigned int srclen, + u8 *dst, unsigned int *destlen); + +#endif |