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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006-2007 Dave Chapman
*
* 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 __SANSAIO_H
#define __SANSAIO_H
#include <stdint.h>
#include <unistd.h>
#ifdef __WIN32__
#include <windows.h>
#define loff_t int64_t
#else
#define HANDLE int
#define O_BINARY 0
/* Only Linux seems to need lseek64 and loff_t */
#if !defined(linux) && !defined (__linux)
#define loff_t off_t
#define lseek64 lseek
#endif
#endif
struct sansa_partinfo_t {
unsigned long start; /* first sector (LBA) */
unsigned long size; /* number of sectors */
int type;
};
struct mi4header_t {
uint32_t version;
uint32_t length;
uint32_t crc32;
uint32_t enctype;
uint32_t mi4size;
uint32_t plaintext;
};
struct sansa_t {
HANDLE dh;
char diskname[4096];
int sector_size;
struct sansa_partinfo_t pinfo[4];
int hasoldbootloader;
char* targetname; /* "e200" or "c200" */
loff_t start; /* Offset in bytes of firmware partition from start of disk */
};
void print_error(char* msg);
int sansa_open(struct sansa_t* sansa, int silent);
int sansa_reopen_rw(struct sansa_t* sansa);
int sansa_close(struct sansa_t* sansa);
int sansa_seek(struct sansa_t* sansa, loff_t pos);
int sansa_read(struct sansa_t* sansa, unsigned char* buf, int nbytes);
int sansa_write(struct sansa_t* sansa, unsigned char* buf, int nbytes);
int sansa_alloc_buffer(unsigned char** sectorbuf, int bufsize);
#endif
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