1 files changed, 43 insertions, 0 deletions
diff --git a/payloads/bayou/lzma.c b/payloads/bayou/lzma.c
new file mode 100644
index 0000000000..a7a8717c6a
--- /dev/null
+++ b/payloads/bayou/lzma.c
@@ -0,0 +1,43 @@
+/*
+
+Coreboot interface to memory-saving variant of LZMA decoder
+
+(C)opyright 2006 Carl-Daniel Hailfinger
+Released under the GNU GPL v2 or later
+
+Parts of this file are based on C/7zip/Compress/LZMA_C/LzmaTest.c from the LZMA
+SDK 4.42, which is written and distributed to public domain by Igor Pavlov.
+
+*/
+
+#include <libpayload.h>
+#include "lzmadecode.c"
+
+unsigned long ulzma(u8 *src, u8 *dst)
+{
+	unsigned char properties[LZMA_PROPERTIES_SIZE];
+	UInt32 outSize;
+	SizeT inProcessed;
+	SizeT outProcessed;
+	int res;
+	CLzmaDecoderState state;
+	SizeT mallocneeds;
+	unsigned char scratchpad[15980];
+
+	memcpy(properties, src, LZMA_PROPERTIES_SIZE);
+	outSize = *(UInt32 *)(src + LZMA_PROPERTIES_SIZE);
+	if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK) {
+		printf("Incorrect stream properties\n");
+	}
+	mallocneeds = (LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
+	if (mallocneeds > 15980) {
+		printf("Decoder scratchpad too small!\n");
+	}
+	state.Probs = (CProb *)scratchpad;
+	res = LzmaDecode(&state, src + LZMA_PROPERTIES_SIZE + 8, (SizeT)0xffffffff, &inProcessed,
+		dst, outSize, &outProcessed);
+	if (res != 0) {
+		printf("Decoding error = %d\n", res);
+	}
+	return outSize;
+}