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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Barry Wardell
*
* Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
* and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
*
* 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 "common.h"
#include "cpu.h"
#include "file.h"
#include "system.h"
#include "kernel.h"
#include "lcd.h"
#include "font.h"
#include "ata.h"
#include "button.h"
#include "disk.h"
#include "power.h"
/* Maximum allowed firmware image size. 10MB is more than enough */
#define MAX_LOADSIZE (10*1024*1024)
/* A buffer to load the original firmware or Rockbox into */
unsigned char *loadbuffer = (unsigned char *)DRAM_START;
/* Bootloader version */
char version[] = APPSVERSION;
void* main(void)
{
char buf[256];
int i;
int rc;
unsigned short* identify_info;
struct partinfo* pinfo;
system_init();
kernel_init();
lcd_init();
font_init();
button_init();
lcd_setfont(FONT_SYSFIXED);
printf("Rockbox boot loader");
printf("Version: 20%s", version);
printf(MODEL_NAME);
i=ata_init();
if (i==0) {
identify_info=ata_get_identify();
/* Show model */
for (i=0; i < 20; i++) {
((unsigned short*)buf)[i]=htobe16(identify_info[i+27]);
}
buf[40]=0;
for (i=39; i && buf[i]==' '; i--) {
buf[i]=0;
}
printf(buf);
} else {
printf("ATA error: %d", i);
udelay(5000000);
power_off();
}
disk_init();
rc = disk_mount_all();
if (rc<=0)
{
printf("No partition found");
udelay(5000000);
power_off();
}
pinfo = disk_partinfo(0);
printf("Partition 0: 0x%02x %ld MB", pinfo->type, pinfo->size / 2048);
i=button_read_device();
if(i==BUTTON_LEFT)
{
/* Load original mi4 firmware. This expects a file called
"/System/OF.bin" on the player. It should be a mi4 firmware decrypted
and header stripped using mi4code. It reads the file in to a memory
buffer called loadbuffer. The rest of the loading is done in crt0.S
*/
printf("Loading original firmware...");
rc=load_raw_firmware(loadbuffer, "/System/OF.bin", MAX_LOADSIZE);
if (rc < EOK) {
printf("Error!");
printf("Can't load /System/OF.bin:");
printf(strerror(rc));
udelay(5000000);
power_off();
}
} else {
printf("Loading Rockbox...");
rc=load_firmware(loadbuffer, BOOTFILE, MAX_LOADSIZE);
if (rc < EOK) {
printf("Error!");
printf("Can't load %s:", BOOTFILE);
printf(strerror(rc));
udelay(5000000);
power_off();
}
}
return (void*)loadbuffer;
}
/* These functions are present in the firmware library, but we reimplement
them here because the originals do a lot more than we want */
void usb_acknowledge(void)
{
}
void usb_wait_for_disconnect(void)
{
}
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