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rockbox/bootloader/main.c
Miika Pekkarinen 35b0c3f24f Updated bootloader for H120/H140 and entirely disabled flashing code for H100 until somebody tests it. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11993 a1c6a512-1295-4272-9138-f99709370657
2007-01-12 20:45:37 +00:00

756 lines
16 KiB
C
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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 "inttypes.h"
#include "string.h"
#include "cpu.h"
#include "system.h"
#include "lcd.h"
#include "lcd-remote.h"
#include "kernel.h"
#include "thread.h"
#include "ata.h"
#include "usb.h"
#include "disk.h"
#include "font.h"
#include "adc.h"
#include "backlight.h"
#include "backlight-target.h"
#include "button.h"
#include "panic.h"
#include "power.h"
#include "file.h"
#include "uda1380.h"
#include "eeprom_settings.h"
#include "pcf50606.h"
#include <stdarg.h>
#define DRAM_START 0x31000000
static bool recovery_mode = false;
int line = 0;
#ifdef HAVE_REMOTE_LCD
int remote_line = 0;
#endif
int usb_screen(void)
{
return 0;
}
char version[] = APPSVERSION;
char printfbuf[256];
void reset_screen(void)
{
lcd_clear_display();
line = 0;
#ifdef HAVE_REMOTE_LCD
lcd_remote_clear_display();
remote_line = 0;
#endif
}
void printf(const char *format, ...)
{
int len;
unsigned char *ptr;
va_list ap;
va_start(ap, format);
ptr = printfbuf;
len = vsnprintf(ptr, sizeof(printfbuf), format, ap);
va_end(ap);
lcd_puts(0, line++, ptr);
lcd_update();
if(line >= 16)
line = 0;
#ifdef HAVE_REMOTE_LCD
lcd_remote_puts(0, remote_line++, ptr);
lcd_remote_update();
if(remote_line >= 8)
remote_line = 0;
#endif
}
/* Reset the cookie for the crt0 crash check */
inline void __reset_cookie(void)
{
asm(" move.l #0,%d0");
asm(" move.l %d0,0x10017ffc");
}
void start_iriver_fw(void)
{
asm(" move.w #0x2700,%sr");
__reset_cookie();
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;
char model[5];
unsigned long sum;
int i;
unsigned char *buf = (unsigned char *)DRAM_START;
fd = open("/.rockbox/" BOOTFILE, O_RDONLY);
if(fd < 0)
{
fd = open("/" BOOTFILE, O_RDONLY);
if(fd < 0)
return -1;
}
len = filesize(fd) - 8;
printf("Length: %x", len);
lseek(fd, FIRMWARE_OFFSET_FILE_CRC, SEEK_SET);
rc = read(fd, &chksum, 4);
if(rc < 4)
return -2;
printf("Checksum: %x", chksum);
rc = read(fd, model, 4);
if(rc < 4)
return -3;
model[4] = 0;
printf("Model name: %s", model);
lcd_update();
lseek(fd, FIRMWARE_OFFSET_FILE_DATA, SEEK_SET);
rc = read(fd, buf, len);
if(rc < len)
return -4;
close(fd);
sum = MODEL_NUMBER;
for(i = 0;i < len;i++) {
sum += buf[i];
}
printf("Sum: %x", sum);
if(sum != chksum)
return -5;
return 0;
}
void start_firmware(void)
{
asm(" move.w #0x2700,%sr");
__reset_cookie();
asm(" move.l %0,%%d0" :: "i"(DRAM_START));
asm(" movec.l %d0,%vbr");
asm(" move.l %0,%%sp" :: "m"(*(int *)DRAM_START));
asm(" move.l %0,%%a0" :: "m"(*(int *)(DRAM_START+4)));
asm(" jmp (%a0)");
}
#ifdef IRIVER_H100_SERIES
void start_flashed_romimage(void)
{
uint8_t *src = (uint8_t *)FLASH_ROMIMAGE_ENTRY;
int *reset_vector;
if (!detect_flashed_romimage())
return ;
reset_vector = (int *)(&src[sizeof(struct flash_header)+4]);
asm(" move.w #0x2700,%sr");
__reset_cookie();
asm(" move.l %0,%%d0" :: "i"(DRAM_START));
asm(" movec.l %d0,%vbr");
asm(" move.l %0,%%sp" :: "m"(reset_vector[0]));
asm(" move.l %0,%%a0" :: "m"(reset_vector[1]));
asm(" jmp (%a0)");
/* Failure */
power_off();
}
void start_flashed_ramimage(void)
{
struct flash_header hdr;
unsigned char *buf = (unsigned char *)DRAM_START;
uint8_t *src = (uint8_t *)FLASH_RAMIMAGE_ENTRY;
if (!detect_flashed_ramimage())
return;
/* Load firmware from flash */
cpu_boost(true);
memcpy(&hdr, src, sizeof(struct flash_header));
src += sizeof(struct flash_header);
memcpy(buf, src, hdr.length);
cpu_boost(false);
start_firmware();
/* Failure */
power_off();
}
#endif /* IRIVER_H100_SERIES */
void shutdown(void)
{
printf("Shutting down...");
#ifdef HAVE_EEPROM_SETTINGS
/* Reset the rockbox crash check. */
firmware_settings.bl_version = 0;
eeprom_settings_store();
#endif
/* We need to gracefully spin down the disk to prevent clicks. */
if (ide_powered())
{
/* Make sure ATA has been initialized. */
ata_init();
/* And put the disk into sleep immediately. */
ata_sleepnow();
}
sleep(HZ*2);
/* Backlight OFF */
__backlight_off();
#ifdef HAVE_REMOTE_LCD
__remote_backlight_off();
#endif
__reset_cookie();
power_off();
}
/* Print the battery voltage (and a warning message). */
void check_battery(void)
{
int adc_battery, battery_voltage, batt_int, batt_frac;
adc_battery = adc_read(ADC_BATTERY);
battery_voltage = (adc_battery * BATTERY_SCALE_FACTOR) / 10000;
batt_int = battery_voltage / 100;
batt_frac = battery_voltage % 100;
printf("Batt: %d.%02dV", batt_int, batt_frac);
if (battery_voltage <= 310)
{
printf("WARNING! BATTERY LOW!!");
sleep(HZ*2);
}
}
#ifdef HAVE_EEPROM_SETTINGS
void initialize_eeprom(void)
{
if (detect_original_firmware())
return ;
if (!eeprom_settings_init())
{
recovery_mode = true;
return ;
}
/* If bootloader version has not been reset, disk might
* not be intact. */
if (firmware_settings.bl_version || !firmware_settings.disk_clean)
{
firmware_settings.disk_clean = false;
recovery_mode = true;
}
firmware_settings.bl_version = EEPROM_SETTINGS_BL_MINVER;
eeprom_settings_store();
}
void try_flashboot(void)
{
if (!firmware_settings.initialized)
return ;
switch (firmware_settings.bootmethod)
{
case BOOT_DISK:
return;
case BOOT_ROM:
start_flashed_romimage();
recovery_mode = true;
break;
case BOOT_RAM:
start_flashed_ramimage();
recovery_mode = true;
break;
default:
recovery_mode = true;
return;
}
}
static const char *options[] = {
"Boot from disk",
"Boot RAM image",
"Boot ROM image",
"Shutdown"
};
#define FAILSAFE_OPTIONS 4
void failsafe_menu(void)
{
int timeout = 15;
int option = 3;
int button;
int defopt = -1;
char buf[32];
int i;
reset_screen();
printf("Bootloader %s", version);
check_battery();
printf("=========================");
line += FAILSAFE_OPTIONS;
printf("");
printf(" [NAVI] to confirm.");
printf(" [REC] to set as default.");
printf("");
if (firmware_settings.initialized)
{
defopt = firmware_settings.bootmethod;
if (defopt < 0 || defopt >= FAILSAFE_OPTIONS)
defopt = option;
}
while (timeout > 0)
{
/* Draw the menu. */
line = 3;
for (i = 0; i < FAILSAFE_OPTIONS; i++)
{
char *def = "[DEF]";
char *arrow = "->";
if (i != defopt)
def = "";
if (i != option)
arrow = " ";
printf("%s %s %s", arrow, options[i], def);
}
snprintf(buf, sizeof(buf), "Time left: %ds", timeout);
lcd_puts(0, 10, buf);
lcd_update();
button = button_get_w_tmo(HZ);
if (button == BUTTON_NONE)
{
timeout--;
continue ;
}
timeout = 15;
/* Ignore the ON/PLAY -button because it can cause trouble
with the RTC alarm mod. */
switch (button & ~(BUTTON_ON))
{
case BUTTON_UP:
case BUTTON_RC_REW:
if (option > 0)
option--;
break ;
case BUTTON_DOWN:
case BUTTON_RC_FF:
if (option < FAILSAFE_OPTIONS-1)
option++;
break ;
case BUTTON_SELECT:
case BUTTON_RC_ON:
timeout = 0;
break ;
case BUTTON_REC:
case BUTTON_RC_REC:
if (firmware_settings.initialized)
{
firmware_settings.bootmethod = option;
eeprom_settings_store();
defopt = option;
}
break ;
}
}
lcd_puts(0, 10, "Executing command...");
lcd_update();
sleep(HZ);
reset_screen();
switch (option)
{
case BOOT_DISK:
return ;
case BOOT_RAM:
start_flashed_ramimage();
printf("Image not found");
break;
case BOOT_ROM:
start_flashed_romimage();
printf("Image not found");
break;
}
shutdown();
}
#endif
void main(void)
{
int i;
int rc;
bool rc_on_button = false;
bool on_button = false;
bool rec_button = false;
bool hold_status = false;
int data;
#ifdef IAUDIO_X5
(void)rc_on_button;
(void)on_button;
(void)rec_button;
(void)data;
power_init();
system_init();
kernel_init();
set_cpu_frequency(CPUFREQ_NORMAL);
coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
set_irq_level(0);
lcd_init();
#ifdef HAVE_REMOTE_LCD
lcd_remote_init();
#endif
backlight_init();
font_init();
adc_init();
button_init();
printf("Rockbox boot loader");
printf("Version %s", version);
adc_battery = adc_read(ADC_BATTERY);
battery_voltage = (adc_battery * BATTERY_SCALE_FACTOR) / 10000;
batt_int = battery_voltage / 100;
batt_frac = battery_voltage % 100;
printf("Batt: %d.%02dV", batt_int, batt_frac);
rc = ata_init();
if(rc)
{
printf("ATA error: %d", rc);
sleep(HZ*5);
power_off();
}
disk_init();
rc = disk_mount_all();
if (rc<=0)
{
printf("No partition found");
sleep(HZ*5);
power_off();
}
printf("Loading firmware");
i = load_firmware();
printf("Result: %d", i);
if(i == 0)
start_firmware();
power_off();
#else
/* We want to read the buttons as early as possible, before the user
releases the ON button */
/* Set GPIO33, GPIO37, GPIO38 and GPIO52 as general purpose inputs
(The ON and Hold buttons on the main unit and the remote) */
or_l(0x00100062, &GPIO1_FUNCTION);
and_l(~0x00100062, &GPIO1_ENABLE);
data = GPIO1_READ;
if ((data & 0x20) == 0)
on_button = true;
if ((data & 0x40) == 0)
rc_on_button = true;
/* Set the default state of the hard drive power to OFF */
ide_power_enable(false);
power_init();
/* Turn off if neither ON button is pressed */
if(!(on_button || rc_on_button || usb_detect()))
{
__reset_cookie();
power_off();
}
/* Start with the main backlight OFF. */
__backlight_init();
__backlight_off();
/* Remote backlight ON */
#ifdef HAVE_REMOTE_LCD
__remote_backlight_on();
#endif
system_init();
kernel_init();
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
/* Set up waitstates for the peripherals */
set_cpu_frequency(0); /* PLL off */
#ifdef CPU_COLDFIRE
coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
#endif
#endif
set_irq_level(0);
#ifdef HAVE_EEPROM_SETTINGS
initialize_eeprom();
#endif
adc_init();
button_init();
if ((on_button && button_hold()) ||
(rc_on_button && remote_button_hold()))
{
hold_status = true;
}
/* Power on the hard drive early, to speed up the loading.
Some H300 don't like this, so we only do it for the H100 */
#ifndef IRIVER_H300_SERIES
if (!hold_status && !recovery_mode)
{
ide_power_enable(true);
}
if (!hold_status && !usb_detect() && !recovery_mode)
try_flashboot();
#endif
backlight_init();
#ifdef HAVE_UDA1380
audiohw_reset();
#endif
lcd_init();
#ifdef HAVE_REMOTE_LCD
lcd_remote_init();
#endif
font_init();
lcd_setfont(FONT_SYSFIXED);
printf("Rockbox boot loader");
printf("Version %s", version);
sleep(HZ/50); /* Allow the button driver to check the buttons */
rec_button = ((button_status() & BUTTON_REC) == BUTTON_REC)
|| ((button_status() & BUTTON_RC_REC) == BUTTON_RC_REC);
check_battery();
/* Don't start if the Hold button is active on the device you
are starting with */
if (!usb_detect() && (hold_status || recovery_mode))
{
if (detect_original_firmware())
{
printf("Hold switch on");
shutdown();
}
#ifdef IRIVER_H100_SERIES
failsafe_menu();
#endif
}
/* Holding REC while starting runs the original firmware */
if (detect_original_firmware() && rec_button)
{
printf("Starting original firmware...");
start_iriver_fw();
}
usb_init();
rc = ata_init();
if(rc)
{
reset_screen();
printf("ATA error: %d", rc);
printf("Insert USB cable and press");
printf("a button");
while(!(button_get(true) & BUTTON_REL));
}
/* A hack to enter USB mode without using the USB thread */
if(usb_detect())
{
const char msg[] = "Bootloader USB mode";
int w, h;
font_getstringsize(msg, &w, &h, FONT_SYSFIXED);
reset_screen();
lcd_putsxy((LCD_WIDTH-w)/2, (LCD_HEIGHT-h)/2, msg);
lcd_update();
#ifdef IRIVER_H300_SERIES
sleep(HZ);
#endif
#ifdef HAVE_EEPROM_SETTINGS
if (firmware_settings.initialized)
{
firmware_settings.disk_clean = false;
eeprom_settings_store();
}
#endif
ata_spin();
ata_enable(false);
usb_enable(true);
cpu_idle_mode(true);
while (usb_detect())
{
/* Print the battery status. */
line = 0;
check_battery();
ata_spin(); /* Prevent the drive from spinning down */
sleep(HZ);
/* Backlight OFF */
__backlight_off();
}
cpu_idle_mode(false);
usb_enable(false);
ata_init(); /* Reinitialize ATA and continue booting */
reset_screen();
lcd_update();
}
disk_init();
rc = disk_mount_all();
if (rc<=0)
{
reset_screen();
printf("No partition found");
while(button_get(true) != SYS_USB_CONNECTED) {};
}
printf("Loading firmware");
i = load_firmware();
printf("Result: %d", i);
if (i == 0)
start_firmware();
if (!detect_original_firmware())
{
printf("No firmware found on disk");
shutdown();
}
else
start_iriver_fw();
#endif /* IAUDIO_X5 */
}
/* 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 sys_poweroff(void)
{
}
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