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 #include "version.h"
  49
  50 void main(void)
  51 {
  52     unsigned char* loadbuffer;
  53     int buffer_size;
  54     int rc;
  55     int(*kernel_entry)(void);
  56
  57     /* Make sure interrupts are disabled */
  58     set_irq_level(IRQ_DISABLED);
  59     set_fiq_status(FIQ_DISABLED);
  60     system_init();
  61     kernel_init();
  62
  63     /* Now enable interrupts */
  64     set_irq_level(IRQ_ENABLED);
  65     set_fiq_status(FIQ_ENABLED);
  66
  67     lcd_init();
  68     backlight_init();
  69     font_init();
  70     button_init();
  71     usb_init();
  72
  73
  74     power_init();
  75 //    enable_irq();
  76 //    enable_fiq();
  77
  78     adc_init();
  79
  80     lcd_setfont(FONT_SYSFIXED);
  81
  82     /* Show debug messages if button is pressed */
  83 //    if(button_read_device())
  84         verbose = true;
  85
  86     printf("Rockbox boot loader");
  87     printf("Version " RBVERSION);
  88
  89     /* Enter USB mode without USB thread */
  90     if(usb_detect() == USB_INSERTED)
  91     {
  92         const char msg[] = "Bootloader USB mode";
  93         reset_screen();
  94         lcd_putsxy( (LCD_WIDTH - (SYSFONT_WIDTH * strlen(msg))) / 2,
  95                     (LCD_HEIGHT - SYSFONT_HEIGHT) / 2, msg);
  96         lcd_update();
  97
  98         ide_power_enable(true);
  99         storage_enable(false);
 100         sleep(HZ/20);
 101         usb_enable(true);
 102
 103         while (usb_detect() == USB_INSERTED)
 104         {
 105             storage_spin(); /* Prevent the drive from spinning down */
 106             sleep(HZ);
 107         }
 108
 109         usb_enable(false);
 110
 111         reset_screen();
 112         lcd_update();
 113     }
 114
 115     sleep(50);
 116
 117     printf("ATA");
 118     rc = storage_init();
 119     if(rc)
 120     {
 121         reset_screen();
 122         error(EATA, rc, true);
 123     }
 124
 125     printf("disk");
 126     disk_init();
 127
 128     printf("mount");
 129     rc = disk_mount_all();
 130     if (rc<=0)
 131     {
 132         error(EDISK,rc, true);
 133     }
 134
 135     printf("Loading firmware");
 136
 137     loadbuffer = (unsigned char*) 0x00900000;
 138     buffer_size = (unsigned char*)0x01900000 - loadbuffer;
 139
 140     rc = load_firmware(loadbuffer, BOOTFILE, buffer_size);
 141     if(rc < 0)
 142         error(EBOOTFILE, rc, true);
 143
 144     if (rc == EOK)
 145     {
 146         kernel_entry = (void*) loadbuffer;
 147         rc = kernel_entry();
 148     }
 149 }