summaryrefslogtreecommitdiffstats
path: root/bootloader/telechips.c
blob: f5669d0bbfc9c27a8e93afd1cf9cd391ba7e44ac (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2007 by Dave Chapman
 *
 * Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
 * 
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
#include "config.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "cpu.h"
#include "system.h"
#include "lcd.h"
#include "kernel.h"
#include "thread.h"
#include "ata.h"
#include "fat.h"
#include "disk.h"
#include "font.h"
#include "button.h"
#include "adc.h"
#include "adc-target.h"
#include "backlight-target.h"
#include "panic.h"
#include "power.h"
#include "file.h"
#include "common.h"

#if defined(COWON_D2)
#include "i2c.h"
#endif

char version[] = APPSVERSION;

extern int line;

void* main(void)
{
    int button;
    int power_count = 0;
    int count = 0;
    int i;
    bool do_power_off = false;

    system_init();
    adc_init();
    lcd_init();
    font_init();

#if defined(COWON_D2)
    lcd_enable(true);
#endif

    _backlight_on();

#if defined(COWON_D2)
    ata_init();
#endif

    while(!do_power_off) {
        line = 0;
        printf("Hello World!");

        button = button_read_device();

        /* Power-off if POWER button has been held for a long time
           This loop is currently running at about 100 iterations/second
         */
        if (button & POWEROFF_BUTTON) {
            power_count++;
            if (power_count > 200)
               do_power_off = true;
        } else {
            power_count = 0;
        }

        printf("Btn: 0x%08x",button);

#if defined(COWON_D2)
        printf("GPIOA: 0x%08x",GPIOA);
        printf("GPIOB: 0x%08x",GPIOB);
        printf("GPIOC: 0x%08x",GPIOC);
        printf("GPIOD: 0x%08x",GPIOD);
        printf("GPIOE: 0x%08x",GPIOE);
        
        for (i = 0; i<4; i++)
        {
            printf("ADC%d: 0x%04x",i,adc_read(i));
        }

        /* TODO: Establish how the touchscreen driver is going to work. 
           Since it needs I2C read/write, it can't easily go on a tick task */
        {
            unsigned char buf[] = { 0x2f, (0xE<<1) | 1, /* ADC start for X+Y */
                                    0, 0, 0 };
            int x,y;
            i2c_write(0x10, buf, 2);
            i2c_readmem(0x10, 0x2e, buf, 5);
            x = (buf[2] << 2) | (buf[3] & 3);
            y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
            printf("X: 0x%03x Y: 0x%03x",x,y);

            buf[0] = 0x2f;
            buf[1] = (0xF<<1) | 1;   /* ADC start for P1+P2 */
            i2c_write(0x10, buf, 2);
            i2c_readmem(0x10, 0x2e, buf, 5);
            x = (buf[2] << 2) | (buf[3] & 3);
            y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2);
            printf("P1: 0x%03x P2: 0x%03x",x,y);
        }
#endif

        count++;
        printf("Count: %d",count);
    }

    lcd_clear_display();
    line = 0;
    printf("POWER-OFF");

#if defined(COWON_D2)
    lcd_enable(false);
#endif

    /* TODO: Power-off */
    while(1);

    return 0;
}

/* These functions are present in the firmware library, but we reimplement
   them here because the originals do a lot more than we want */
void usb_acknowledge(void)
{
}

void usb_wait_for_disconnect(void)
{
}