cbfstool: add decompression wrappers
... and document the interface.
Change-Id: I86a071a61fd6c1ef842f8ffe51f12f0cefdaf2fe
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/11362
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
diff --git a/util/cbfstool/compress.c b/util/cbfstool/compress.c
index ab94b35..2bde7df 100644
--- a/util/cbfstool/compress.c
+++ b/util/cbfstool/compress.c
@@ -31,6 +31,10 @@
return do_lzma_compress(in, in_len, out, out_len);
}
+static int lzma_decompress(char *in, int in_len, char *out, unused int out_len)
+{
+ return do_lzma_uncompress(out, out_len, in, in_len);
+}
static int none_compress(char *in, int in_len, char *out, int *out_len)
{
memcpy(out, in, in_len);
@@ -38,6 +42,12 @@
return 0;
}
+static int none_decompress(char *in, int in_len, char *out, unused int out_len)
+{
+ memcpy(out, in, in_len);
+ return 0;
+}
+
comp_func_ptr compression_function(enum comp_algo algo)
{
comp_func_ptr compress;
@@ -54,3 +64,20 @@
}
return compress;
}
+
+decomp_func_ptr decompression_function(enum comp_algo algo)
+{
+ decomp_func_ptr decompress;
+ switch (algo) {
+ case CBFS_COMPRESS_NONE:
+ decompress = none_decompress;
+ break;
+ case CBFS_COMPRESS_LZMA:
+ decompress = lzma_decompress;
+ break;
+ default:
+ ERROR("Unknown compression algorithm %d!\n", algo);
+ return NULL;
+ }
+ return decompress;
+}