bootloader/gigabeat-s.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 by Greg White
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include "config.h"
  20
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include "inttypes.h"
  24 #include "string.h"
  25 #include "cpu.h"
  26 #include "system.h"
  27 #include "lcd.h"
  28 #include "kernel.h"
  29 #include "thread.h"
  30 #include "ata.h"
  31 #include "dir.h"
  32 #include "fat.h"
  33 #include "disk.h"
  34 #include "font.h"
  35 #include "adc.h"
  36 #include "backlight.h"
  37 #include "backlight-target.h"
  38 #include "button.h"
  39 #include "panic.h"
  40 #include "power.h"
  41 #include "file.h"
  42 #include "common.h"
  43 #include "rbunicode.h"
  44 #include "usb.h"
  45 #include "mmu-imx31.h"
  46 #include "lcd-target.h"
  47 #include "avic-imx31.h"
  48 #include <stdarg.h>
  49
  50 char version[] = APPSVERSION;
  51 char buf[MAX_PATH];
  52 char basedir[] = "/Content/0b00/00/"; /* Where files sent via MTP are stored */
  53 char model[5];
  54 int (*kernel_entry)(void);
  55
  56 void main(void)
  57 {
  58     lcd_clear_display();
  59     printf("Hello world!");
  60     printf("Gigabeat S Rockbox Bootloader v.00000001");
  61     kernel_init();
  62     printf("kernel init done");
  63     int rc;
  64
  65     rc = ata_init();
  66     if(rc)
  67     {
  68         reset_screen();
  69         error(EATA, rc);
  70     }
  71     printf("ata init done");
  72
  73     disk_init();
  74     printf("disk init done");
  75
  76     rc = disk_mount_all();
  77     if (rc<=0)
  78     {
  79         error(EDISK,rc);
  80     }
  81
  82     /* Look for the first valid firmware file */
  83     struct dirent_uncached* entry;
  84     DIR_UNCACHED* dir;
  85     int fd;
  86     dir = opendir_uncached(basedir);
  87     while ((entry = readdir_uncached(dir)))
  88     {
  89         if (*entry->d_name != '.')
  90         {
  91             snprintf(buf, sizeof(buf), "%s%s", basedir, entry->d_name);
  92             fd = open(buf, O_RDONLY);
  93             if (fd >= 0)
  94             {
  95                 lseek(fd, 4, SEEK_SET);
  96                 rc = read(fd, model, 4);
  97                 close(fd);
  98                 if (rc == 4)
  99                 {
 100                     model[4] = 0;
 101                     if (strcmp(model, "gigs") == 0)
 102                         break;
 103                 }
 104             }
 105         }
 106     }
 107
 108     printf("Firmware file: %s", buf);
 109     printf("Loading firmware");
 110
 111     unsigned char *loadbuffer = (unsigned char *)0x0;
 112     int buffer_size = 1024*1024;
 113
 114     rc = load_firmware(loadbuffer, buf, buffer_size);
 115     if(rc < 0)
 116         error(buf, rc);
 117
 118     if (rc == EOK)
 119     {
 120         kernel_entry = (void*) loadbuffer;
 121         rc = kernel_entry();
 122     }
 123
 124     while (1);
 125 }
 126