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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C) 2009 by Karl Kurbjun
* $Id$
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdlib.h>
extern int decrypt_array[];
extern int encrypt_array[];
/* Notes about the header:
* The magic_name should always be "OIMCFWUP"
* Header length is always 18 bytes
* The flags have the following mask:
* CHECK_CRC 0x01 : Tells the firmware whether or not to check CRC
* ENDIAN_MODE 0x02 : Tells the OF whether to re-order the bytes
* The rest are unknown
* The image length is in bytes and is always 0x007F0000
*/
struct olympus_header {
int8_t magic_name[8];
uint32_t unknown;
uint16_t header_length;
uint16_t flags;
uint32_t unknown_zeros;
uint32_t image_length;
} __attribute__((__packed__));
/* Patch entries should be saved in little endian format */
struct patch_single {
off_t offset;
uint32_t value;
};
int mr500_patch_file(char *, struct patch_single *, int);
int mr500_save_header(char *, struct olympus_header *);
int mr500_read_header(char *, struct olympus_header *);
int mr500_save_crc(char *, off_t, uint32_t *);
int mr500_read_crc(char *, off_t, uint32_t *);
int mr500_calculate_crc(char *, off_t, unsigned int, uint32_t *);
int mr500_save_data(char *, char *, off_t, unsigned int, int*);
int mr500_init(void);
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