diff options
Diffstat (limited to 'roms/u-boot/fs/squashfs/sqfs_decompressor.h')
| -rw-r--r-- | roms/u-boot/fs/squashfs/sqfs_decompressor.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/roms/u-boot/fs/squashfs/sqfs_decompressor.h b/roms/u-boot/fs/squashfs/sqfs_decompressor.h new file mode 100644 index 000000000..892cfb697 --- /dev/null +++ b/roms/u-boot/fs/squashfs/sqfs_decompressor.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020 Bootlin + * + * Author: Joao Marcos Costa <joaomarcos.costa@bootlin.com> + */ + +#ifndef SQFS_DECOMPRESSOR_H +#define SQFS_DECOMPRESSOR_H + +#include <stdint.h> +#include "sqfs_filesystem.h" + +#define SQFS_COMP_ZLIB 1 +#define SQFS_COMP_LZMA 2 +#define SQFS_COMP_LZO 3 +#define SQFS_COMP_XZ 4 +#define SQFS_COMP_LZ4 5 +#define SQFS_COMP_ZSTD 6 + +/* LZMA does not support any compression options */ + +struct squashfs_gzip_opts { + u32 compression_level; + u16 window_size; + u16 strategies; +}; + +struct squashfs_xz_opts { + u32 dictionary_size; + u32 executable_filters; +}; + +struct squashfs_lz4_opts { + u32 version; + u32 flags; +}; + +struct squashfs_zstd_opts { + u32 compression_level; +}; + +struct squashfs_lzo_opts { + u32 algorithm; + u32 level; +}; + +union squashfs_compression_opts { + struct squashfs_gzip_opts *gzip; + struct squashfs_xz_opts *xz; + struct squashfs_lz4_opts *lz4; + struct squashfs_zstd_opts *zstd; + struct squashfs_lzo_opts *lzo; +}; + +int sqfs_decompress(struct squashfs_ctxt *ctxt, void *dest, + unsigned long *dest_len, void *source, u32 src_len); +int sqfs_decompressor_init(struct squashfs_ctxt *ctxt); +void sqfs_decompressor_cleanup(struct squashfs_ctxt *ctxt); + +#endif /* SQFS_DECOMPRESSOR_H */ |