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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* $Id$
*
* Copyright (c) 2009, Dave Chapman
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#include <stdio.h>
#if !defined(_MSC_VER)
#include <unistd.h>
#include <fcntl.h>
#endif
#include <string.h>
#include <stdlib.h>
#if !defined(_MSC_VER)
#include <inttypes.h>
#else
#include "pstdint.h"
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include "mtp_common.h"
#include "bootimg.h"
#define VERSION "1.0 with v1 bootloader"
void print_usage(void)
{
fprintf(stderr,"Usage: beastpatcher [action]\n");
fprintf(stderr,"\n");
fprintf(stderr,"Where [action] is one of the following options:\n");
fprintf(stderr," --install (default)\n");
fprintf(stderr," -?, --help\n");
fprintf(stderr,"\n");
}
/* Code to create a single-boot bootloader.
Based on tools/gigabeats.c by Will Robertson.
*/
/* Entry point (and load address) for the main Rockbox bootloader */
#define BL_ENTRY_POINT 0x8a000000
static void put_uint32le(uint32_t x, unsigned char* p)
{
p[0] = (unsigned char)(x & 0xff);
p[1] = (unsigned char)((x >> 8) & 0xff);
p[2] = (unsigned char)((x >> 16) & 0xff);
p[3] = (unsigned char)((x >> 24) & 0xff);
}
static uint32_t calc_csum(const unsigned char* pb, int cb)
{
uint32_t l = 0;
while (cb--)
l += *pb++;
return l;
}
static void create_single_boot(unsigned char* boot, int bootlen,
unsigned char** fwbuf, int* fwsize)
{
unsigned char* buf;
/* 15 bytes for header, 16 for signature bypass,
* 12 for record header, size of bootloader, 12 for footer */
*fwsize = 15 + 16 + 12 + bootlen + 12;
*fwbuf = malloc(*fwsize);
if(fwbuf == NULL) {
fprintf(stderr, "[ERR] Cannot allocate memory.\n" );
*fwbuf = NULL;
*fwsize = 0;
return;
}
buf = *fwbuf;
/* Copy bootloader image. */
memcpy(buf + 43, boot, bootlen);
/* Step 2: Create the file header */
sprintf((char *)buf, "B000FF\n");
put_uint32le(0x88200000, buf+7);
/* If the value below is too small, the update will attempt to flash.
* Be careful when changing this (leaving it as is won't cause issues) */
put_uint32le(0xCC0CD8, buf+11);
/* Step 3: Add the signature bypass record */
put_uint32le(0x88065A10, buf+15);
put_uint32le(4, buf+19);
put_uint32le(0xE3A00001, buf+27);
put_uint32le(calc_csum(buf+27,4), buf+23);
/* Step 4: Create a record for the actual code */
put_uint32le(BL_ENTRY_POINT, buf+31);
put_uint32le(bootlen, buf+35);
put_uint32le(calc_csum(buf + 43, bootlen), buf+39);
/* Step 5: Write the footer */
put_uint32le(0, buf+*fwsize-12);
put_uint32le(BL_ENTRY_POINT, buf+*fwsize-8);
put_uint32le(0, buf+*fwsize-4);
return;
}
int beastpatcher(int argc, char* argv[])
{
char yesno[4];
unsigned char* fwbuf;
int fwsize;
struct mtp_info_t mtp_info;
(void)argv;
fprintf(stderr,"beastpatcher v" VERSION " - (C) 2009 by the Rockbox developers\n");
fprintf(stderr,"This is free software; see the source for copying conditions. There is NO\n");
fprintf(stderr,"warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n");
/* No options are currently implemented, so just display help if any are
provided. */
if (argc > 1) {
print_usage();
return 1;
}
if (mtp_init(&mtp_info) < 0) {
fprintf(stderr,"[ERR] Can not init MTP\n");
return 1;
}
/* Scan for attached MTP devices. */
if (mtp_scan(&mtp_info) < 0)
{
fprintf(stderr,"[ERR] No devices found\n");
return 1;
}
printf("[INFO] Found device \"%s - %s\"\n", mtp_info.manufacturer,
mtp_info.modelname);
printf("[INFO] Device version: \"%s\"\n",mtp_info.version);
printf("\nEnter i to install the Rockbox bootloader or c to cancel and do nothing (i/c): ");
if (fgets(yesno,4,stdin))
{
if (yesno[0]=='i')
{
/* Create a single-boot bootloader from the embedded bootloader */
create_single_boot(bootimg, LEN_bootimg, &fwbuf, &fwsize);
if (fwbuf == NULL)
return 1;
if (mtp_send_firmware(&mtp_info, fwbuf, fwsize) == 0)
{
fprintf(stderr,"[INFO] Bootloader installed successfully.\n");
}
else
{
fprintf(stderr,"[ERR] Bootloader install failed.\n");
}
/* We are now done with the firmware image */
free(fwbuf);
}
else
{
fprintf(stderr,"[INFO] Installation cancelled.\n");
}
}
mtp_finished(&mtp_info);
return 0;
}
int main(int argc, char* argv[])
{
int res;
char yesno[4];
res = beastpatcher(argc, argv);
printf("\nPress ENTER to exit beastpatcher: ");
fgets(yesno,4,stdin);
return res;
}
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