Move load_firmware() to separate file

The idea is to share loading code between bootloaders and rolo().

Change-Id: I1656ed91946d7a05cb7c9fa7a16793c3c862a5cd
Reviewed-on: http://gerrit.rockbox.org/190
Reviewed-by: Marcin Bukat <marcin.bukat@gmail.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/firmware/export/mi4-loader.h b/firmware/export/mi4-loader.h
new file mode 100644
index 0000000000..1b4a4b93b2
--- /dev/null
+++ b/firmware/export/mi4-loader.h
@@ -0,0 +1,51 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
+ * and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#include <stdint.h>
+
+#define MI4_HEADER_SIZE     0x200
+
+/* mi4 header structure */
+struct mi4header_t {
+    unsigned char magic[4];
+    uint32_t version;
+    uint32_t length;
+    uint32_t crc32;
+    uint32_t enctype;
+    uint32_t mi4size;
+    uint32_t plaintext;
+    uint32_t dsa_key[10];
+    uint32_t pad[109];
+    unsigned char type[4];
+    unsigned char model[4];
+};
+
+struct tea_key {
+  const char * name;
+  uint32_t     key[4];
+};
+
+#define NUM_KEYS (sizeof(tea_keytable)/sizeof(tea_keytable[0]))
+
+int load_mi4(unsigned char* buf, const char* firmware, unsigned int buffer_size);
+const char *mi4_strerror(int8_t errno);