| /* infutil.h -- types and macros common to blocks and codes |
| * Copyright (C) 1995-1998 Mark Adler |
| * For conditions of distribution and use, see copyright notice in zlib.h |
| */ |
| |
| /* WARNING: this file should *not* be used by applications. It is |
| part of the implementation of the compression library and is |
| subject to change. Applications should only use zlib.h. |
| */ |
| |
| #ifndef _INFUTIL_H |
| #define _INFUTIL_H |
| |
| #include <linux/zlib.h> |
| #ifdef CONFIG_ZLIB_DFLTCC |
| #include "../zlib_dfltcc/dfltcc.h" |
| #include <asm/page.h> |
| #endif |
| |
| /* memory allocation for inflation */ |
| |
| struct inflate_workspace { |
| struct inflate_state inflate_state; |
| #ifdef CONFIG_ZLIB_DFLTCC |
| struct dfltcc_state dfltcc_state; |
| unsigned char working_window[(1 << MAX_WBITS) + PAGE_SIZE]; |
| #else |
| unsigned char working_window[(1 << MAX_WBITS)]; |
| #endif |
| }; |
| |
| #ifdef CONFIG_ZLIB_DFLTCC |
| /* dfltcc_state must be doubleword aligned for DFLTCC call */ |
| static_assert(offsetof(struct inflate_workspace, dfltcc_state) % 8 == 0); |
| #endif |
| |
| #define WS(strm) ((struct inflate_workspace *)(strm->workspace)) |
| |
| #endif |
