1 files changed, 50 insertions, 0 deletions
diff --git a/firmware/lib/region-init.c b/firmware/lib/region-init.c
new file mode 100644
index 00000000..bec0450d
--- /dev/null
+++ b/firmware/lib/region-init.c
@@ -0,0 +1,50 @@
+/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * High-level firmware API for loading and verifying rewritable firmware.
+ * (Firmware portion)
+ */
+
+#include "sysincludes.h"
+
+#include "bmpblk_header.h"
+#include "region.h"
+#include "gbb_access.h"
+#include "gbb_header.h"
+#include "load_kernel_fw.h"
+#include "utility.h"
+#include "vboot_api.h"
+#include "vboot_struct.h"
+
+VbError_t VbRegionReadData(VbCommonParams *cparams,
+			   enum vb_firmware_region region, uint32_t offset,
+			   uint32_t size, void *buf)
+{
+	/* This is the old API, for backwards compatibility */
+	if (region == VB_REGION_GBB && cparams->gbb_data) {
+		if (offset + size > cparams->gbb_size)
+			return VBERROR_INVALID_GBB;
+		Memcpy(buf, cparams->gbb_data + offset, size);
+	} else
+#ifdef REGION_READ
+	{
+		VbError_t ret;
+
+		ret = VbExRegionRead(cparams, region, offset, size, buf);
+		if (ret)
+			return ret;
+	}
+#else
+	return VBERROR_INVALID_GBB;
+#endif
+
+	return VBERROR_SUCCESS;
+}
+
+VbError_t VbGbbReadHeader_static(VbCommonParams *cparams,
+				 GoogleBinaryBlockHeader *gbb)
+{
+	return VbRegionReadData(cparams, VB_REGION_GBB, 0,
+				sizeof(GoogleBinaryBlockHeader), gbb);
+}