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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 by Dave Chapman
*
* Based on Rockbox iriver bootloader 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 <string.h>
#include "cpu.h"
#include "system.h"
#include "lcd.h"
#include "kernel.h"
#include "thread.h"
#include "ata.h"
#include "fat.h"
#include "disk.h"
#include "font.h"
#include "button.h"
#include "adc.h"
#include "adc-target.h"
#include "backlight.h"
#include "backlight-target.h"
#include "panic.h"
#include "power.h"
#include "file.h"
#include "common.h"
#if defined(COWON_D2)
#include "pcf50606.h"
#define LOAD_ADDRESS 0x20000000 /* DRAM_START */
#endif
char version[] = APPSVERSION;
extern int line;
#define MAX_LOAD_SIZE (8*1024*1024) /* Arbitrary, but plenty. */
/* The following function is just test/development code */
#ifdef CPU_TCC77X
void show_debug_screen(void)
{
int button;
int power_count = 0;
int count = 0;
bool do_power_off = false;
lcd_puts_scroll(0,0,"this is a very long line to test scrolling");
while(!do_power_off) {
line = 1;
button = button_get(false);
/* Power-off if POWER button has been held for a long time
This loop is currently running at about 100 iterations/second
*/
if (button & POWEROFF_BUTTON) {
power_count++;
if (power_count > 200)
do_power_off = true;
} else {
power_count = 0;
}
printf("Btn: 0x%08x",button);
printf("Tick: %d",current_tick);
printf("GPIOA: 0x%08x",GPIOA);
printf("GPIOB: 0x%08x",GPIOB);
printf("GPIOC: 0x%08x",GPIOC);
printf("GPIOD: 0x%08x",GPIOD);
// printf("GPIOE: 0x%08x",GPIOE);
#if 0
int i;
for (i = 0; i<4; i++)
{
printf("ADC%d: 0x%04x",i,adc_read(i));
}
#endif
count++;
printf("Count: %d",count);
sleep(HZ/10);
}
lcd_clear_display();
line = 0;
printf("POWER-OFF");
/* Power-off */
power_off();
printf("(NOT) POWERED OFF");
while (true);
}
#else /* !CPU_TCC77X */
void show_debug_screen(void)
{
int button;
int power_count = 0;
int count = 0;
bool do_power_off = false;
#ifdef HAVE_BUTTON_DATA
unsigned int data;
#endif
while(!do_power_off) {
line = 0;
printf("Hello World!");
#ifdef HAVE_BUTTON_DATA
button = button_read_device(&data);
#else
button = button_read_device();
#endif
/* Power-off if POWER button has been held for a long time
This loop is currently running at about 100 iterations/second
*/
if (button & POWEROFF_BUTTON) {
power_count++;
if (power_count > 200)
do_power_off = true;
} else {
power_count = 0;
}
printf("Btn: 0x%08x",button);
count++;
printf("Count: %d",count);
}
lcd_clear_display();
line = 0;
printf("POWER-OFF");
/* Power-off */
power_off();
printf("(NOT) POWERED OFF");
while (true);
}
#endif
void* main(void)
{
#if defined(COWON_D2) && defined(TCCBOOT)
int rc;
unsigned char* loadbuffer = (unsigned char*)LOAD_ADDRESS;
#endif
power_init();
system_init();
#ifndef COWON_D2
/* The D2 doesn't enable threading or interrupts */
kernel_init();
enable_irq();
#endif
lcd_init();
adc_init();
button_init();
backlight_init();
font_init();
lcd_setfont(FONT_SYSFIXED);
_backlight_on();
/* Only load the firmware if TCCBOOT is defined - this ensures SDRAM_START is
available for loading the firmware. Otherwise display the debug screen. */
#if defined(COWON_D2) && defined(TCCBOOT)
printf("Rockbox boot loader");
printf("Version %s", version);
printf("ATA");
rc = ata_init();
if(rc)
{
reset_screen();
error(EATA, rc);
}
printf("mount");
rc = disk_mount_all();
if (rc<=0)
{
error(EDISK,rc);
}
rc = load_firmware(loadbuffer, BOOTFILE, MAX_LOAD_SIZE);
if (rc < 0)
{
error(EBOOTFILE,rc);
}
else if (rc == EOK)
{
int(*kernel_entry)(void);
kernel_entry = (void*) loadbuffer;
rc = kernel_entry();
}
#else
show_debug_screen();
#endif
return 0;
}
/* 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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