120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
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/***************************************************************************
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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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* Copyright (C) 2006 by Barry Wardell
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*
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* Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
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* and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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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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#include <stdio.h>
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#include <stdlib.h>
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#include "common.h"
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#include "cpu.h"
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#include "file.h"
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#include "system.h"
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#include "kernel.h"
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#include "lcd.h"
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#include "font.h"
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#include "ata.h"
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#include "button.h"
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#include "disk.h"
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#include "crc32-mi4.h"
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#include <string.h>
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#include "i2c.h"
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#include "backlight-target.h"
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/* Bootloader version */
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char version[] = APPSVERSION;
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#define START_SECTOR_OF_ROM 1
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#define ROMSECTOR_TO_HACK 63
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#define HACK_OFFSET 498
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#define KNOWN_CRC32 0x5a09c266
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char knownBytes[] = {0x00, 0x24, 0x07, 0xe1};
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char changedBytes[] = {0xc0, 0x46, 0xc0, 0x46 };
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void* main(void)
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{
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int i;
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int btn;
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int num_partitions;
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int crc32;
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char sector[512];
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struct partinfo* pinfo;
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chksum_crc32gentab ();
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system_init();
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kernel_init();
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lcd_init();
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font_init();
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button_init();
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i2c_init();
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__backlight_on();
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lcd_set_foreground(LCD_WHITE);
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lcd_set_background(LCD_BLACK);
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lcd_clear_display();
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btn = button_read_device();
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verbose = true;
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lcd_setfont(FONT_SYSFIXED);
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printf("Rockbox e200R installer");
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printf("Version: %s", version);
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printf(MODEL_NAME);
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i=ata_init();
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disk_init(IF_MV(0));
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num_partitions = disk_mount_all();
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if (num_partitions<=0)
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{
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error(EDISK,num_partitions);
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}
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pinfo = disk_partinfo(1);
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printf("--- Partition info ---");
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printf("start: %x", pinfo->start);
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printf("size: %x", pinfo->size);
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printf("type: %x", pinfo->type);
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printf("reading: %x", (START_SECTOR_OF_ROM + ROMSECTOR_TO_HACK)*512);
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ata_read_sectors(IF_MV2(0,)
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pinfo->start + START_SECTOR_OF_ROM + ROMSECTOR_TO_HACK,
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1 , sector);
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crc32 = chksum_crc32 (sector, 512);
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printf("--- Hack Status ---");
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printf("Sector checksum: %x", crc32);
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if ((crc32 == KNOWN_CRC32) &&
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!memcmp(§or[HACK_OFFSET], knownBytes,
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sizeof(knownBytes)/sizeof(*knownBytes)))
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{
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memcpy(§or[HACK_OFFSET], changedBytes,
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sizeof(changedBytes)/sizeof(*changedBytes));
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ata_write_sectors(IF_MV2(0,)
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pinfo->start + START_SECTOR_OF_ROM + ROMSECTOR_TO_HACK,
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1 , sector);
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printf("Firmware Hacked");
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printf("Proceed to Step 2");
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}
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else
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printf("Unknown bootloader... aborted");
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GPIOG_OUTPUT_VAL &=~0x80;
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while(1);
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return NULL;
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}
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