bootloader/telechips.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 by Dave Chapman
  11  *
  12  * Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
  13  *
  14  * All files in this archive are subject to the GNU General Public License.
  15  * See the file COPYING in the source tree root for full license agreement.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include "cpu.h"
  27 #include "system.h"
  28 #include "lcd.h"
  29 #include "kernel.h"
  30 #include "thread.h"
  31 #include "ata.h"
  32 #include "fat.h"
  33 #include "disk.h"
  34 #include "font.h"
  35 #include "button.h"
  36 #include "adc.h"
  37 #include "adc-target.h"
  38 #include "backlight-target.h"
  39 #include "panic.h"
  40 #include "power.h"
  41 #include "file.h"
  42 #include "common.h"
  43
  44 #if defined(COWON_D2)
  45 #include "i2c.h"
  46 #endif
  47
  48 char version[] = APPSVERSION;
  49
  50 extern int line;
  51
  52 void* main(void)
  53 {
  54     int button;
  55     int power_count = 0;
  56     int count = 0;
  57     int i;
  58     bool do_power_off = false;
  59
  60     system_init();
  61     adc_init();
  62     lcd_init();
  63     font_init();
  64
  65 #if defined(COWON_D2)
  66     lcd_enable(true);
  67 #endif
  68
  69     _backlight_on();
  70
  71 #if defined(COWON_D2)
  72     ata_init();
  73 #endif
  74
  75     while(!do_power_off) {
  76         line = 0;
  77         printf("Hello World!");
  78
  79         button = button_read_device();
  80
  81         /* Power-off if POWER button has been held for a long time
  82            This loop is currently running at about 100 iterations/second
  83          */
  84         if (button & POWEROFF_BUTTON) {
  85             power_count++;
  86             if (power_count > 200)
  87                do_power_off = true;
  88         } else {
  89             power_count = 0;
  90         }
  91
  92         printf("Btn: 0x%08x",button);
  93
  94 #if defined(COWON_D2)
  95         printf("GPIOA: 0x%08x",GPIOA);
  96         printf("GPIOB: 0x%08x",GPIOB);
  97         printf("GPIOC: 0x%08x",GPIOC);
  98         printf("GPIOD: 0x%08x",GPIOD);
  99         printf("GPIOE: 0x%08x",GPIOE);
 100
 101         for (i = 0; i<4; i++)
 102         {
 103             printf("ADC%d: 0x%04x",i,adc_read(i));
 104         }
 105
 106         /* TODO: Establish how the touchscreen driver is going to work.
 107            Since it needs I2C read/write, it can't easily go on a tick task */
 108         {
 109             unsigned char buf[] = { 0x2f, (0xE<<1) | 1, /* ADC start for X+Y */
 110                                     0, 0, 0 };
 111             int x,y;
 112             i2c_write(0x10, buf, 2);
 113             i2c_readmem(0x10, 0x2e, buf, 5);
 114             x = (buf[2] << 2) | (buf[3] & 3);
 115             y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
 116             printf("X: 0x%03x Y: 0x%03x",x,y);
 117
 118             buf[0] = 0x2f;
 119             buf[1] = (0xF<<1) | 1;   /* ADC start for P1+P2 */
 120             i2c_write(0x10, buf, 2);
 121             i2c_readmem(0x10, 0x2e, buf, 5);
 122             x = (buf[2] << 2) | (buf[3] & 3);
 123             y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
 124             printf("P1: 0x%03x P2: 0x%03x",x,y);
 125         }
 126 #endif
 127
 128         count++;
 129         printf("Count: %d",count);
 130     }
 131
 132     lcd_clear_display();
 133     line = 0;
 134     printf("POWER-OFF");
 135
 136 #if defined(COWON_D2)
 137     lcd_enable(false);
 138 #endif
 139
 140     /* TODO: Power-off */
 141     while(1);
 142
 143     return 0;
 144 }
 145
 146 /* These functions are present in the firmware library, but we reimplement
 147    them here because the originals do a lot more than we want */
 148 void usb_acknowledge(void)
 149 {
 150 }
 151
 152 void usb_wait_for_disconnect(void)
 153 {
 154 }