f9eeab2b6c
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21648 a1c6a512-1295-4272-9138-f99709370657
131 lines
4.4 KiB
C
131 lines
4.4 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* mkamsboot.h - a tool for merging bootloader code into an Sansa V2
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* (AMS) firmware file
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*
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* Copyright (C) 2008 Dave Chapman
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef MKAMSBOOT_H
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#define MKAMSBOOT_H
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#include <stdint.h>
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#include <sys/types.h>
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/* Holds info about the OF */
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struct md5sums {
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int model;
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char *version;
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char *md5;
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};
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/* load_rockbox_file()
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*
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* Loads a rockbox bootloader file into memory
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*
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* ARGUMENTS
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*
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* filename : bootloader file to load
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* model : a 4 characters string representing the Sansa model
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* ("fuze", "clip", "e2v2", "m2v4", or "c2v2")
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* bootloader_size : set to the uncompressed bootloader size
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* rb_packed_size : set to the size of compressed bootloader
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* errstr : provided buffer to store an eventual error
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* errstrsize : size of provided error buffer
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*
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* RETURN VALUE
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* pointer to allocated memory containing the content of compressed bootloader
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* or NULL in case of error (errstr will hold a description of the error)
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*/
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unsigned char* load_rockbox_file(
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char* filename, int model, int* bootloader_size, int* rb_packedsize,
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char* errstr, int errstrsize);
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/* load_of_file()
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*
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* Loads a Sansa AMS Original Firmware file into memory
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*
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* ARGUMENTS
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*
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* filename : firmware file to load
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* bufsize : set to firmware file size
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* md5sum : set to file md5sum, must be at least 33 bytes long
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* model : set to firmware model (MODEL_XXX)
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* fw_version : set to firmware format version (1 or 2)
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* firmware_size : set to firmware block's size
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* of_packed : pointer to allocated memory containing the compressed
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* original firmware block
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* of_packedsize : size of compressed original firmware block
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* errstr : provided buffer to store an eventual error
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* errstrsize : size of provided error buffer
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*
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* RETURN VALUE
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* pointer to allocated memory containing the content of Original Firmware
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* or NULL in case of error (errstr will hold a description of the error)
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*/
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unsigned char* load_of_file(
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char* filename, off_t* bufsize, struct md5sums *sum,
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int* firmware_size, unsigned char** of_packed,
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int* of_packedsize, char* errstr, int errstrsize);
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/* patch_firmware()
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*
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* Patches a Sansa AMS Original Firmware file
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*
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* ARGUMENTS
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*
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* model : firmware model (MODEL_XXX)
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* fw_version : firmware format version (1 or 2)
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* firmware_size : size of uncompressed original firmware block
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* buf : pointer to original firmware file
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* len : size of original firmware file
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* of_packed : pointer to compressed original firmware block
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* of_packedsize : size of compressed original firmware block
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* rb_packed : pointer to compressed rockbox bootloader
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* rb_packed_size : size of compressed rockbox bootloader
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*/
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void patch_firmware(
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int model, int fw_version, int firmware_size, unsigned char* buf,
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int len, unsigned char* of_packed, int of_packedsize,
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unsigned char* rb_packed, int rb_packedsize);
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/* total_size()
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*
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* Calculates the size of the new firmware block
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*
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* ARGUMENTS
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*
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* model : firmware model (MODEL_XXX)
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* rb_packed_size : size of compressed rockbox bootloader
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* of_packedsize : size of compressed original firmware block
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*
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* RETURN VALUE
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* Size of new firmware block
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*/
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int total_size(int model, int rb_packedsize, int of_packedsize);
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#endif
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