bootloader/sansa_as3525.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2008 by Rafaël Carré
  11  *
  12  * Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
  13  * and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  21  * KIND, either express or implied.
  22  *
  23  ****************************************************************************/
  24
  25 #include <stdio.h>
  26 #include <system.h>
  27 #include <inttypes.h>
  28 #include "config.h"
  29 #include "lcd.h"
  30 #include "backlight-target.h"
  31 #include "as3525-codec.h"
  32 #include "common.h"
  33 #include "storage.h"
  34
  35 int show_logo(void);
  36 void main(void)
  37 {
  38     int i;
  39     unsigned char buf[8];
  40
  41     system_init();
  42
  43     lcd_init();
  44
  45     show_logo();
  46
  47     as3525_codec_init();  /* Required for backlight on e200v2 */
  48
  49     _backlight_on();
  50
  51     /* show player id to demonstrate communication with codec part */
  52     for (i = 0; i < 8; i++) {
  53         buf[i] = as3525_codec_read(0x38 + i);
  54     }
  55     printf("ID: %02X%02X%02X%02X%02X%02X%02X%02X", buf[7], buf[6], buf[5], buf[4], buf[3], buf[2], buf[1], buf[0]);
  56
  57     storage_init();
  58
  59 #ifdef SANSA_CLIP
  60     /* Use hardware scrolling */
  61
  62     lcd_write_command(0x26); /* scroll setup */
  63     lcd_write_command(0x01); /* columns scrolled per step */
  64     lcd_write_command(0x00); /* start page */
  65     lcd_write_command(0x00); /* steps freqency */
  66     lcd_write_command(0x07); /* end page (including) */
  67
  68     lcd_write_command(0x2F); /* start horizontal scrolling */
  69 #endif
  70
  71     /* never returns */
  72     while(1) ;
  73 }