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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 Vitja Makarov
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
#include "button.h"
#include "backlight.h"
#include "adc.h"
#include "button-target.h"
#include "ata2501.h"
void button_init_device(void)
{
ata2501_init();
}
/*
touchpad:
0: stop
1-8: between next & prev
9: play
10: next
11: prev
*/
int button_read_device(void)
{
static bool hold_button = false;
bool hold_button_old;
int btn = BUTTON_NONE;
int adc;
int sensor;
hold_button_old = hold_button;
hold_button = button_hold();
#ifndef BOOTLOADER
if (hold_button != hold_button_old)
backlight_hold_changed(hold_button);
#endif
if (button_hold())
return BUTTON_NONE;
adc = adc_read(0);
sensor = ata2501_read();
if (0 == (GPIOA & 4))
btn |= BUTTON_POWER;
/* seems they can't be hold together */
if (adc < 0x120)
btn |= BUTTON_VOLUP;
else if (adc < 0x270)
btn |= BUTTON_VOLDOWN;
else if (adc < 0x300)
btn |= BUTTON_MENU;
if (sensor & (1 << 0))
btn |= BUTTON_STOP;
if (sensor & (1 << 9))
btn |= BUTTON_PLAY;
if (sensor & ((1 << 10) | 0x1c0))
btn |= BUTTON_RIGHT;
if (sensor & ((1 << 11) | 0xe))
btn |= BUTTON_LEFT;
return btn;
}
bool button_hold(void)
{
return !(GPIOA & 0x2);
}
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