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     bool do_power_off = false;
  58
  59 #if defined(COWON_D2)
  60     int i,rc,fd,len;
  61     int* buf = (int*)0x21000000; /* Unused DRAM */
  62 #endif
  63
  64     power_init();
  65     lcd_init();
  66     system_init();
  67
  68 #if defined(COWON_D2)
  69     kernel_init();
  70 #endif
  71
  72     adc_init();
  73     button_init();
  74     backlight_init();
  75
  76     font_init();
  77
  78     lcd_setfont(FONT_SYSFIXED);
  79
  80 #if defined(COWON_D2)
  81     lcd_enable(true);
  82 #endif
  83
  84     _backlight_on();
  85
  86 #if defined(COWON_D2)
  87     printf("ATA");
  88     rc = ata_init();
  89     if(rc)
  90     {
  91         reset_screen();
  92         error(EATA, rc);
  93     }
  94
  95     printf("mount");
  96     rc = disk_mount_all();
  97     if (rc<=0)
  98     {
  99         error(EDISK,rc);
 100     }
 101
 102 #if 0
 103     printf("opening test file...");
 104
 105     fd = open("/test.bin", O_RDONLY);
 106     if (fd < 0) panicf("could not open test file");
 107
 108     len = filesize(fd);
 109     printf("Length: %x", len);
 110
 111     lseek(fd, 0, SEEK_SET);
 112     read(fd, buf, len);
 113     close(fd);
 114
 115     printf("testing contents...");
 116
 117     i = 0;
 118     while (buf[i] == i && i<(len/4)) { i++; }
 119
 120     if (i < len/4)
 121     {
 122         printf("mismatch at %x [0x%x]", i, buf[i]);
 123     }
 124     else
 125     {
 126         printf("passed!");
 127     }
 128     while (!button_read_device()) {};
 129     while (button_read_device()) {};
 130 #endif
 131 #endif
 132
 133     while(!do_power_off) {
 134         line = 0;
 135         printf("Hello World!");
 136
 137         button = button_read_device();
 138
 139         /* Power-off if POWER button has been held for a long time
 140            This loop is currently running at about 100 iterations/second
 141          */
 142         if (button & POWEROFF_BUTTON) {
 143             power_count++;
 144             if (power_count > 200)
 145                do_power_off = true;
 146         } else {
 147             power_count = 0;
 148         }
 149
 150         printf("Btn: 0x%08x",button);
 151
 152 #if defined(COWON_D2)
 153         printf("GPIOA: 0x%08x",GPIOA);
 154         printf("GPIOB: 0x%08x",GPIOB);
 155         printf("GPIOC: 0x%08x",GPIOC);
 156         printf("GPIOD: 0x%08x",GPIOD);
 157         printf("GPIOE: 0x%08x",GPIOE);
 158
 159         for (i = 0; i<4; i++)
 160         {
 161             printf("ADC%d: 0x%04x",i,adc_read(i));
 162         }
 163
 164         /* TODO: Move this stuff out to a touchscreen driver and establish
 165            how such a beast is going to work. Since it needs I2C read/write,
 166            it can't easily go on an interrupt-based tick task. */
 167         {
 168             unsigned char buf[] = { 0x2f, (0xE<<1) | 1, /* ADC start for X+Y */
 169                                     0, 0, 0 };
 170             int x,y;
 171             i2c_write(0x10, buf, 2);
 172             i2c_readmem(0x10, 0x2e, buf, 5);
 173             x = (buf[2] << 2) | (buf[3] & 3);
 174             y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
 175             printf("X: 0x%03x Y: 0x%03x",x,y);
 176
 177             x = (x*LCD_WIDTH) / 1024;
 178             y = (y*LCD_HEIGHT) / 1024;
 179             lcd_hline(x-5, x+5, y);
 180             lcd_vline(x, y-5, y+5);
 181
 182             buf[0] = 0x2f;
 183             buf[1] = (0xF<<1) | 1;   /* ADC start for P1+P2 */
 184             i2c_write(0x10, buf, 2);
 185             i2c_readmem(0x10, 0x2e, buf, 5);
 186             x = (buf[2] << 2) | (buf[3] & 3);
 187             y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
 188             printf("P1: 0x%03x P2: 0x%03x",x,y);
 189         }
 190 #endif
 191
 192         count++;
 193         printf("Count: %d",count);
 194     }
 195
 196     lcd_clear_display();
 197     line = 0;
 198     printf("POWER-OFF");
 199
 200     /* Power-off */
 201     power_off();
 202
 203     return 0;
 204 }
 205
 206 /* These functions are present in the firmware library, but we reimplement
 207    them here because the originals do a lot more than we want */
 208 void usb_acknowledge(void)
 209 {
 210 }
 211
 212 void usb_wait_for_disconnect(void)
 213 {
 214 }