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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Barry Wardell
*
* 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 <stdlib.h>
#include "config.h"
#include "cpu.h"
#include "system.h"
#include "button.h"
#include "kernel.h"
#include "backlight.h"
#include "adc.h"
#include "system.h"
void button_init_device(void)
{
}
bool button_hold(void)
{
return (GPIO5_READ & 4) ? false : true;
}
/*
* Get button pressed from hardware
*/
int button_read_device(void)
{
int btn = BUTTON_NONE;
int data;
static bool hold_button = false;
bool hold_button_old;
/* normal buttons */
hold_button_old = hold_button;
hold_button = button_hold();
if (hold_button != hold_button_old)
backlight_hold_changed(hold_button);
if (!button_hold())
{
data = adc_read(ADC_BUTTONS);
if (data < 0x35c)
{
if (data < 0x151)
if (data < 0xc7)
if (data < 0x41)
btn = BUTTON_LEFT;
else
btn = BUTTON_RIGHT;
else
btn = BUTTON_SELECT;
else
if (data < 0x268)
if (data < 0x1d7)
btn = BUTTON_UP;
else
btn = BUTTON_DOWN;
else
if (data < 0x2f9)
btn = BUTTON_EQ;
else
btn = BUTTON_MODE;
}
if (adc_read(ADC_BUTTON_PLAY) < 0x64)
btn |= BUTTON_PLAY;
}
return btn;
}
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