407 lines
9.9 KiB
C
407 lines
9.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2007 by Linus Nielsen Feltzing
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include "inttypes.h"
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#include "string.h"
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#include "cpu.h"
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#include "system.h"
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#include "lcd.h"
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#include "lcd-remote.h"
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#include "scroll_engine.h"
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#include "../kernel-internal.h"
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#include "storage.h"
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#include "file_internal.h"
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#include "usb.h"
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#include "disk.h"
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#include "font.h"
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#include "adc.h"
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#include "backlight.h"
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#include "backlight-target.h"
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#include "button.h"
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#include "panic.h"
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#include "power.h"
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#include "powermgmt.h"
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#include "file.h"
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#include "pcf50606.h"
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#include "common.h"
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#include "rb-loader.h"
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#include "loader_strerror.h"
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#include "rbunicode.h"
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#include "isp1362.h"
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#include "version.h"
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#include <stdarg.h>
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/* Maximum allowed firmware image size. 10MB is more than enough */
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#define MAX_LOADSIZE (10*1024*1024)
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#define DRAM_START 0x31000000
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/* Reset the cookie for the crt0 crash check */
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inline void __reset_cookie(void)
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{
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asm(" move.l #0,%d0");
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asm(" move.l %d0,0x10017ffc");
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}
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void start_iriver_fw(void)
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{
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asm(" move.w #0x2700,%sr");
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__reset_cookie();
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asm(" movec.l %d0,%vbr");
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asm(" move.l 0,%sp");
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asm(" lea.l 8,%a0");
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asm(" jmp (%a0)");
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}
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void start_firmware(void)
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{
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asm(" move.w #0x2700,%sr");
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__reset_cookie();
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asm(" move.l %0,%%d0" :: "i"(DRAM_START));
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asm(" movec.l %d0,%vbr");
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asm(" move.l %0,%%sp" :: "m"(*(int *)DRAM_START));
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asm(" move.l %0,%%a0" :: "m"(*(int *)(DRAM_START+4)));
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asm(" jmp (%a0)");
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}
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void shutdown(void)
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{
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printf("Shutting down...");
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/* We need to gracefully spin down the disk to prevent clicks. */
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if (ide_powered())
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{
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/* Make sure ATA has been initialized. */
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storage_init();
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/* And put the disk into sleep immediately. */
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storage_sleepnow();
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}
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sleep(HZ*2);
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backlight_hw_off();
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remote_backlight_hw_off();
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__reset_cookie();
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power_off();
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}
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/* Print the battery voltage (and a warning message). */
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void check_battery(void)
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{
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int battery_voltage, batt_int, batt_frac;
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battery_voltage = _battery_voltage();
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batt_int = battery_voltage / 1000;
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batt_frac = (battery_voltage % 1000) / 10;
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printf("Batt: %d.%02dV", batt_int, batt_frac);
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if (battery_voltage <= 310)
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{
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printf("WARNING! BATTERY LOW!!");
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sleep(HZ*2);
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}
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}
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/* From the pcf50606 driver */
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extern unsigned char pcf50606_intregs[3];
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/* From common.c */
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extern int line;
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extern int remote_line;
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void main(void)
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{
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int i;
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int rc;
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bool rc_on_button = false;
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bool on_button = false;
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bool rec_button = false;
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bool hold_status = false;
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int data;
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bool rtc_alarm;
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int button;
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int mask;
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/* We want to read the buttons as early as possible, before the user
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releases the ON button */
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/* Set GPIO33, GPIO37, GPIO38 and GPIO52 as general purpose inputs
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(The ON and Hold buttons on the main unit and the remote) */
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or_l(0x00100062, &GPIO1_FUNCTION);
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and_l(~0x00100062, &GPIO1_ENABLE);
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data = GPIO1_READ;
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if ((data & 0x20) == 0)
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on_button = true;
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if ((data & 0x40) == 0)
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rc_on_button = true;
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/* Set the default state of the hard drive power to OFF */
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ide_power_enable(false);
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power_init();
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/* Check the interrupt registers if it was an RTC alarm */
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rtc_alarm = (pcf50606_intregs[0] & 0x80)?true:false;
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/* Turn off if we believe the start was accidental */
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if(!(rtc_alarm || on_button || rc_on_button ||
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(usb_detect() == USB_INSERTED) || charger_inserted())) {
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__reset_cookie();
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power_off();
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}
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/* get rid of a nasty humming sound during boot */
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mask = disable_irq_save();
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pcf50606_write(0x3b, 0x00); /* GPOOD2 high Z */
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pcf50606_write(0x3b, 0x07); /* GPOOD2 low */
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restore_irq(mask);
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/* Start with the main backlight OFF. */
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backlight_hw_init();
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backlight_hw_off();
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remote_backlight_hw_on();
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system_init();
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kernel_init();
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/* Set up waitstates for the peripherals */
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set_cpu_frequency(0); /* PLL off */
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coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
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enable_irq();
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isp1362_init();
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adc_init();
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button_init();
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backlight_init();
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lcd_init();
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lcd_remote_init();
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font_init();
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lcd_setfont(FONT_SYSFIXED);
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printf("Rockbox boot loader");
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printf("Version %s", rbversion);
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sleep(HZ/50); /* Allow the button driver to check the buttons */
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rec_button = ((button_status() & BUTTON_REC) == BUTTON_REC)
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|| ((button_status() & BUTTON_RC_REC) == BUTTON_RC_REC);
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check_battery();
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if(rtc_alarm)
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printf("RTC alarm detected");
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/* Don't start if the Hold button is active on the device you
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are starting with */
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if ((on_button && button_hold()) ||
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(rc_on_button && remote_button_hold()))
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{
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hold_status = true;
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}
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if (hold_status && !rtc_alarm && (usb_detect() != USB_INSERTED) &&
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!charger_inserted())
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{
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if (detect_original_firmware())
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{
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printf("Hold switch on");
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shutdown();
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}
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}
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/* Holding REC while starting runs the original firmware */
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if (detect_original_firmware() && rec_button)
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{
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printf("Starting original firmware...");
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start_iriver_fw();
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}
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if(charger_inserted())
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{
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const char charging_msg[] = "Charging...";
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const char complete_msg[] = "Charging complete";
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const char *msg;
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int w, h;
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bool blink_toggle = false;
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bool request_start = false;
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cpu_idle_mode(true);
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while(charger_inserted() && !request_start)
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{
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button = button_get_w_tmo(HZ);
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switch(button)
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{
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case BUTTON_ON:
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request_start = true;
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break;
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case BUTTON_NONE: /* Timeout */
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if(charging_state())
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{
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/* To be replaced with a nice animation */
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blink_toggle = !blink_toggle;
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msg = charging_msg;
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}
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else
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{
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blink_toggle = true;
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msg = complete_msg;
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}
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font_getstringsize(msg, &w, &h, FONT_SYSFIXED);
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reset_screen();
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if(blink_toggle)
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lcd_putsxy((LCD_WIDTH-w)/2, (LCD_HEIGHT-h)/2, msg);
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check_battery();
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break;
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}
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if(usb_detect() == USB_INSERTED)
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request_start = true;
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}
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if(!request_start)
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{
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__reset_cookie();
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power_off();
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}
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cpu_idle_mode(false);
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}
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usb_init();
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/* A hack to enter USB mode without using the USB thread */
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if(usb_detect() == USB_INSERTED)
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{
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const char msg[] = "Bootloader USB mode";
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int w, h;
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font_getstringsize(msg, &w, &h, FONT_SYSFIXED);
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reset_screen();
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lcd_putsxy((LCD_WIDTH-w)/2, (LCD_HEIGHT-h)/2, msg);
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lcd_update();
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lcd_remote_puts(0, 3, msg);
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lcd_remote_update();
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ide_power_enable(true);
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storage_enable(false);
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sleep(HZ/20);
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usb_enable(true);
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cpu_idle_mode(true);
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while (usb_detect() == USB_INSERTED)
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{
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/* Print the battery status. */
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line = 0;
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remote_line = 0;
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check_battery();
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storage_spin(); /* Prevent the drive from spinning down */
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sleep(HZ);
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}
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cpu_idle_mode(false);
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usb_enable(false);
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reset_screen();
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lcd_update();
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}
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rc = storage_init();
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if(rc)
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{
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reset_screen();
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printf("ATA error: %d", rc);
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printf("Insert USB cable and press");
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printf("a button");
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while(!(button_get(true) & BUTTON_REL));
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}
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filesystem_init();
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rc = disk_mount_all();
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if (rc<=0)
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{
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reset_screen();
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printf("No partition found");
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while(button_get(true) != SYS_USB_CONNECTED) {};
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}
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printf("Loading firmware");
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i = load_firmware((unsigned char *)DRAM_START, BOOTFILE, MAX_LOADSIZE);
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if(i <= EFILE_EMPTY)
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printf("Error: %s", loader_strerror(i));
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if (i > 0)
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start_firmware();
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if (!detect_original_firmware())
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{
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printf("No firmware found on disk");
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sleep(HZ*2);
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shutdown();
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}
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else {
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sleep(HZ*2);
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start_iriver_fw();
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}
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}
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/* These functions are present in the firmware library, but we reimplement
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them here because the originals do a lot more than we want */
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void screen_dump(void)
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{
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}
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int usb_screen(void)
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{
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return 0;
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}
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unsigned short *bidi_l2v(const unsigned char *str, int orientation)
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{
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static unsigned short utf16_buf[SCROLL_LINE_SIZE];
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unsigned short *target;
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(void)orientation;
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target = utf16_buf;
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while (*str)
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str = utf8decode(str, target++);
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*target = 0;
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return utf16_buf;
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}
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