summaryrefslogtreecommitdiffstats
path: root/bootloader/mrobe500.c
blob: 9052cbdc3c5c8c1c4afe64d73126dc899fb7ab9c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2007 by Karl Kurbjun
 *
 * 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 "inttypes.h"
#include "string.h"
#include "cpu.h"
#include "system.h"
#include "lcd.h"
#include "kernel.h"
#include "thread.h"
#include "storage.h"
#include "fat.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 "common.h"
#include "rbunicode.h"
#include "usb.h"
#include "spi.h"
#include "uart-target.h"
#include "tsc2100.h"
#include "time.h"
#include "system-arm.h"

void main(void)
{
    unsigned char* loadbuffer;
    int buffer_size;
    int rc;
    int(*kernel_entry)(void);

    /* Make sure interrupts are disabled */
    set_irq_level(IRQ_DISABLED);
    set_fiq_status(FIQ_DISABLED);
    system_init();
    kernel_init();
    
    /* Now enable interrupts */
    set_irq_level(IRQ_ENABLED);
    set_fiq_status(FIQ_ENABLED);

    backlight_init();
    lcd_init();
    font_init();
    button_init();
    usb_init();
    
    
    power_init();
//    enable_irq();
//    enable_fiq();

    adc_init();

    lcd_setfont(FONT_SYSFIXED);

    /* Show debug messages if button is pressed */
//    if(button_read_device())
        verbose = true;

    printf("Rockbox boot loader");
    printf("Version %s", APPSVERSION);

    /* Enter USB mode without USB thread */
    if(usb_detect() == USB_INSERTED)
    {
        const char msg[] = "Bootloader USB mode";
        reset_screen();
        lcd_putsxy( (LCD_WIDTH - (SYSFONT_WIDTH * strlen(msg))) / 2,
                    (LCD_HEIGHT - SYSFONT_HEIGHT) / 2, msg);
        lcd_update();

        ide_power_enable(true);
        storage_enable(false);
        sleep(HZ/20);
        usb_enable(true);

        while (usb_detect() == USB_INSERTED)
        {
            storage_spin(); /* Prevent the drive from spinning down */
            sleep(HZ);
        }

        usb_enable(false);

        reset_screen();
        lcd_update();
    }
    
    sleep(50);

    printf("ATA");
    rc = storage_init();
    if(rc)
    {
        reset_screen();
        error(EATA, rc);
    }

    printf("disk");
    disk_init();

    printf("mount");
    rc = disk_mount_all();
    if (rc<=0)
    {
        error(EDISK,rc);
    }

    printf("Loading firmware");

    loadbuffer = (unsigned char*) 0x00900000;
    buffer_size = (unsigned char*)0x01900000 - loadbuffer;

    rc = load_firmware(loadbuffer, BOOTFILE, buffer_size);
    if(rc < 0)
        error(EBOOTFILE, rc);

    if (rc == EOK)
    {
        kernel_entry = (void*) loadbuffer;
        rc = kernel_entry();
    }
}