| David Gibson | ad9d271 | 2007-03-05 14:24:52 +1100 | [diff] [blame^] | 1 | /* |
| 2 | * Decompression convenience functions |
| 3 | * |
| 4 | * Copyright 2007 David Gibson, IBM Corporation. |
| 5 | * |
| 6 | * This file is licensed under the terms of the GNU General Public |
| 7 | * License version 2. This program is licensed "as is" without any |
| 8 | * warranty of any kind, whether express or implied. |
| 9 | */ |
| 10 | #ifndef _PPC_BOOT_GUNZIP_UTIL_H_ |
| 11 | #define _PPC_BOOT_GUNZIP_UTIL_H_ |
| 12 | |
| 13 | #include "zlib.h" |
| 14 | |
| 15 | /* scratch space for gunzip; 46912 is from zlib_inflate_workspacesize() */ |
| 16 | #define GUNZIP_SCRATCH_SIZE 46912 |
| 17 | |
| 18 | struct gunzip_state { |
| 19 | z_stream s; |
| 20 | char scratch[46912]; |
| 21 | }; |
| 22 | |
| 23 | void gunzip_start(struct gunzip_state *state, void *src, int srclen); |
| 24 | int gunzip_partial(struct gunzip_state *state, void *dst, int dstlen); |
| 25 | void gunzip_exactly(struct gunzip_state *state, void *dst, int len); |
| 26 | void gunzip_discard(struct gunzip_state *state, int len); |
| 27 | int gunzip_finish(struct gunzip_state *state, void *dst, int len); |
| 28 | |
| 29 | #endif /* _PPC_BOOT_GUNZIP_UTIL_H_ */ |
| 30 | |