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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Linus Nielsen Feltzing
*
* 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 "config.h"
#include <stdlib.h>
#include <stdio.h>
#include "cpu.h"
#include "system.h"
#include "lcd.h"
#include "kernel.h"
#include "thread.h"
#include "ata.h"
#include "disk.h"
#include "font.h"
#include "adc.h"
#include "backlight.h"
#include "button.h"
#include "panic.h"
#include "power.h"
#include "file.h"
int line = 0;
int usb_screen(void)
{
return 0;
}
void start_iriver_fw(void)
{
asm(" move.w #0x2700,%sr");
/* Reset the cookie for the crt0 crash check */
asm(" move.l #0,%d0");
asm(" move.l %d0,0x10017ffc");
asm(" movec.l %d0,%vbr");
asm(" move.l 0,%sp");
asm(" lea.l 8,%a0");
asm(" jmp (%a0)");
}
int load_firmware(void)
{
int fd;
int rc;
int len;
unsigned long chksum;
unsigned long sum;
int i;
unsigned char *buf = (unsigned char *)0x30000000;
char str[80];
fd = open("/rockbox.iriver", O_RDONLY);
if(fd < 0)
return -1;
len = filesize(fd) - 8;
snprintf(str, 80, "Length: %x", len);
lcd_puts(0, line++, str);
lcd_update();
lseek(fd, FIRMWARE_OFFSET_FILE_CRC, SEEK_SET);
rc = read(fd, &chksum, 4);
if(rc < 4)
return -2;
snprintf(str, 80, "Checksum: %x", chksum);
lcd_puts(0, line++, str);
lcd_update();
lseek(fd, FIRMWARE_OFFSET_FILE_DATA, SEEK_SET);
rc = read(fd, buf, len);
if(rc < len)
return -4;
close(fd);
sum = 0;
for(i = 0;i < len;i++) {
sum += buf[i];
}
snprintf(str, 80, "Sum: %x", sum);
lcd_puts(0, line++, str);
lcd_update();
if(sum != chksum)
return -5;
return 0;
}
void start_firmware(void)
{
asm(" move.w #0x2700,%sr");
/* Reset the cookie for the crt0 crash check */
asm(" move.l #0,%d0");
asm(" move.l %d0,0x10017ffc");
asm(" move.l #0x30000000,%d0");
asm(" movec.l %d0,%vbr");
asm(" move.l 0x30000000,%sp");
asm(" move.l 0x30000004,%a0");
asm(" jmp (%a0)");
}
void main(void)
{
int i;
int rc;
char buf[256];
power_init();
system_init();
kernel_init();
backlight_init();
set_irq_level(0);
lcd_init();
font_init();
adc_init();
button_init();
lcd_setfont(FONT_SYSFIXED);
sleep(HZ/50); /* Allow the button driver to check the buttons */
if(button_status() & BUTTON_REC ||
(button_status() & BUTTON_RC_ON) == BUTTON_RC_ON) {
lcd_puts(0, 8, "Starting original firmware...");
lcd_update();
start_iriver_fw();
}
if((button_status() & BUTTON_ON) & button_hold()) {
lcd_puts(0, 8, "HOLD switch on, power off...");
lcd_update();
sleep(HZ/2);
/* Reset the cookie for the crt0 crash check */
asm(" move.l #0,%d0");
asm(" move.l %d0,0x10017ffc");
power_off();
}
#if 0
if((button_status() & BUTTON_RC_ON) & remote_button_hold()) {
lcd_puts(0, 8, "HOLD switch on, power off...");
lcd_update();
sleep(HZ/2);
power_off();
}
#endif
rc = ata_init();
if(rc)
{
#ifdef HAVE_LCD_BITMAP
char str[32];
lcd_clear_display();
snprintf(str, 31, "ATA error: %d", rc);
lcd_puts(0, 1, str);
lcd_puts(0, 3, "Press ON to debug");
lcd_update();
while(!(button_get(true) & BUTTON_REL));
#endif
panicf("ata: %d", rc);
}
disk_init();
rc = disk_mount_all();
if (rc<=0)
{
lcd_clear_display();
lcd_puts(0, 0, "No partition");
lcd_puts(0, 1, "found.");
while(button_get(true) != SYS_USB_CONNECTED) {};
}
lcd_puts(0, line++, "Loading firmware");
lcd_update();
i = load_firmware();
snprintf(buf, 256, "Result: %d", i);
lcd_puts(0, line++, buf);
lcd_update();
if(i == 0)
start_firmware();
start_iriver_fw();
}
/* These functions are present in the firmware library, but we reimplement
them here because the originals do a lot more than we want */
void reset_poweroff_timer(void)
{
}
void screen_dump(void)
{
}
int dbg_ports(void)
{
return 0;
}
void mpeg_stop(void)
{
}
void usb_acknowledge(void)
{
}
void usb_wait_for_disconnect(void)
{
}
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