bootloader/mrobe500.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 by Karl Kurbjun
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include "inttypes.h"
  23 #include "string.h"
  24 #include "cpu.h"
  25 #include "system.h"
  26 #include "lcd.h"
  27 #include "kernel.h"
  28 #include "thread.h"
  29 #include "storage.h"
  30 #include "fat.h"
  31 #include "disk.h"
  32 #include "font.h"
  33 #include "adc.h"
  34 #include "backlight.h"
  35 #include "backlight-target.h"
  36 #include "button.h"
  37 #include "panic.h"
  38 #include "power.h"
  39 #include "file.h"
  40 #include "common.h"
  41 #include "rbunicode.h"
  42 #include "usb.h"
  43 #include "spi.h"
  44 #include "uart-target.h"
  45 #include "tsc2100.h"
  46 #include "time.h"
  47 #include "system-arm.h"
  48
  49 void main(void)
  50 {
  51     unsigned char* loadbuffer;
  52     int buffer_size;
  53     int rc;
  54     int(*kernel_entry)(void);
  55
  56     /* Make sure interrupts are disabled */
  57     set_irq_level(IRQ_DISABLED);
  58     set_fiq_status(FIQ_DISABLED);
  59     system_init();
  60     kernel_init();
  61
  62     /* Now enable interrupts */
  63     set_irq_level(IRQ_ENABLED);
  64     set_fiq_status(FIQ_ENABLED);
  65
  66     backlight_init();
  67     lcd_init();
  68     font_init();
  69     button_init();
  70     usb_init();
  71
  72
  73     power_init();
  74 //    enable_irq();
  75 //    enable_fiq();
  76
  77     adc_init();
  78
  79     lcd_setfont(FONT_SYSFIXED);
  80
  81     /* Show debug messages if button is pressed */
  82 //    if(button_read_device())
  83         verbose = true;
  84
  85     printf("Rockbox boot loader");
  86     printf("Version %s", APPSVERSION);
  87
  88     /* Enter USB mode without USB thread */
  89     if(usb_detect() == USB_INSERTED)
  90     {
  91         const char msg[] = "Bootloader USB mode";
  92         reset_screen();
  93         lcd_putsxy( (LCD_WIDTH - (SYSFONT_WIDTH * strlen(msg))) / 2,
  94                     (LCD_HEIGHT - SYSFONT_HEIGHT) / 2, msg);
  95         lcd_update();
  96
  97         ide_power_enable(true);
  98         storage_enable(false);
  99         sleep(HZ/20);
 100         usb_enable(true);
 101
 102         while (usb_detect() == USB_INSERTED)
 103         {
 104             storage_spin(); /* Prevent the drive from spinning down */
 105             sleep(HZ);
 106         }
 107
 108         usb_enable(false);
 109
 110         reset_screen();
 111         lcd_update();
 112     }
 113
 114     sleep(50);
 115
 116     printf("ATA");
 117     rc = storage_init();
 118     if(rc)
 119     {
 120         reset_screen();
 121         error(EATA, rc);
 122     }
 123
 124     printf("disk");
 125     disk_init();
 126
 127     printf("mount");
 128     rc = disk_mount_all();
 129     if (rc<=0)
 130     {
 131         error(EDISK,rc);
 132     }
 133
 134     printf("Loading firmware");
 135
 136     loadbuffer = (unsigned char*) 0x00900000;
 137     buffer_size = (unsigned char*)0x01900000 - loadbuffer;
 138
 139     rc = load_firmware(loadbuffer, BOOTFILE, buffer_size);
 140     if(rc < 0)
 141         error(EBOOTFILE, rc);
 142
 143     if (rc == EOK)
 144     {
 145         kernel_entry = (void*) loadbuffer;
 146         rc = kernel_entry();
 147     }
 148 }