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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2011 by amaury Pouly
*
* Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
* and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
*
* 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.
*
****************************************************************************/
#include <stdio.h>
#include <system.h>
#include <inttypes.h>
#include "config.h"
#include "gcc_extensions.h"
#include "lcd.h"
#include "backlight.h"
#include "button-target.h"
#include "common.h"
#include "storage.h"
#include "disk.h"
#include "panic.h"
#include "power.h"
#include "power-imx233.h"
#include "system-target.h"
#include "fmradio_i2c.h"
#include "version.h"
#include "powermgmt.h"
#include "usb.h"
extern char loadaddress[];
extern char loadaddressend[];
#ifdef HAVE_BOOTLOADER_USB_MODE
static void usb_mode(int connect_timeout)
{
int button;
usb_init();
usb_start_monitoring();
/* Wait for threads to connect or cable is pulled */
printf("USB: Connecting");
long end_tick = current_tick + connect_timeout;
while(1)
{
button = button_get_w_tmo(HZ/10);
if(button == SYS_USB_CONNECTED)
break; /* Hit */
if(TIME_AFTER(current_tick, end_tick))
{
/* Timed out waiting for the connect - will happen when connected
* to a charger through the USB port */
printf("USB: Timed out");
break;
}
if(usb_detect() == USB_EXTRACTED)
break; /* Cable pulled */
}
if(button == SYS_USB_CONNECTED)
{
/* Got the message - wait for disconnect */
printf("Bootloader USB mode");
/* Enable power management to charge */
powermgmt_init();
usb_acknowledge(SYS_USB_CONNECTED_ACK);
while(1)
{
button = button_get_w_tmo(HZ/2);
if(button == SYS_USB_DISCONNECTED)
break;
struct imx233_powermgmt_info_t info = imx233_powermgmt_get_info();
lcd_putsf(0, 7, "Charging status: %s",
info.state == CHARGE_STATE_DISABLED ? "disabled" :
info.state == CHARGE_STATE_ERROR ? "error" :
info.state == DISCHARGING ? "discharging" :
info.state == TRICKLE ? "trickle" :
info.state == TOPOFF ? "topoff" :
info.state == CHARGING ? "charging" : "<unknown>");
lcd_putsf(0, 8, "Battery: %d%%", battery_level());
lcd_update();
}
}
/* Put drivers initialized for USB connection into a known state */
usb_close();
}
#else /* !HAVE_BOOTLOADER_USB_MODE */
static void usb_mode(int connect_timeout)
{
(void) connect_timeout;
}
#endif /* HAVE_BOOTLOADER_USB_MODE */
void main(uint32_t arg, uint32_t addr) NORETURN_ATTR;
void main(uint32_t arg, uint32_t addr)
{
unsigned char* loadbuffer;
int buffer_size;
void(*kernel_entry)(void);
int ret;
system_init();
kernel_init();
power_init();
enable_irq();
lcd_init();
lcd_clear_display();
lcd_update();
backlight_init();
button_init();
//button_debug_screen();
printf("Boot version: %s", RBVERSION);
printf("arg=%x addr=%x", arg, addr);
printf("power up source: %x", __XTRACT(HW_POWER_STS, PWRUP_SOURCE));
#ifdef SANSA_FUZEPLUS
extern void imx233_mmc_disable_window(void);
if(arg == 0xfee1dead)
{
printf("Disable MMC window.");
imx233_mmc_disable_window();
}
#endif
ret = storage_init();
if(ret < 0)
error(EATA, ret, true);
/* NOTE: allow disk_init and disk_mount_all to fail since we can do USB after.
* We need this order to determine the correct logical sector size */
while(!disk_init(IF_MV(0)))
printf("disk_init failed!");
if((ret = disk_mount_all()) <= 0)
error(EDISK, ret, false);
if(usb_detect() == USB_INSERTED)
usb_mode(HZ);
printf("Loading firmware");
loadbuffer = (unsigned char*)loadaddress;
buffer_size = (int)(loadaddressend - loadaddress);
while((ret = load_firmware(loadbuffer, BOOTFILE, buffer_size)) < 0)
{
error(EBOOTFILE, ret, true);
}
kernel_entry = (void*) loadbuffer;
printf("Executing");
disable_interrupt(IRQ_FIQ_STATUS);
commit_discard_idcache();
kernel_entry();
printf("ERR: Failed to boot");
/* never returns */
while(1) ;
}
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