atjboottool: split fwu code into its own file

Slightly cleanup the code by removing the old and dangerous --force option.

Change-Id: I776633a9924797fcd509b8b80623bcd64b391672

1 files changed, 40 insertions, 0 deletions

diff --git a/utils/atj2137/atjboottool/fwu.h b/utils/atj2137/atjboottool/fwu.h
new file mode 100644
index 0000000000..dc49d91df3
--- /dev/null
+++ b/utils/atj2137/atjboottool/fwu.h
@@ -0,0 +1,40 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2017 Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __FWU_H__
+#define __FWU_H__
+
+#include <stdint.h>
+
+enum fwu_mode_t
+{
+    FWU_AUTO, /* Will try to guess which mode to use */
+    FWU_ATJ213X, /* Will use ATJ213x style mode */
+    FWU_ATJ2127, /* Will use ATJ2127 variation */
+};
+
+/* Decrypt a FWU file inplace, the size variable is updated to reflect the size of the decrypted
+ * firmware. Return 0 on success. The mode parameter selects how the function guesses between
+ * various variants of FWU. */
+int fwu_decrypt(uint8_t *buf, size_t *size, enum fwu_mode_t mode);
+/* Check if a file looks like a FWU file */
+bool fwu_check(uint8_t *buf, size_t size);
+
+#endif /* __FWU_H__ */