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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id:$
*
* Copyright (C) 2007 by Mark Arigo
*
* 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 "system.h"
#include "button.h"
#include "backlight.h"
void button_init_device(void)
{
/* TODO...for now, hardware initialisation is done by the c200 bootloader */
}
bool button_hold(void)
{
return !(GPIOI_INPUT_VAL & 0x80);
}
/*
* Get button pressed from hardware
*/
int button_read_device(void)
{
int btn = BUTTON_NONE;
static bool hold_button = false;
#ifndef BOOTLOADER
bool hold_button_old;
/* Hold */
hold_button_old = hold_button;
#endif
hold_button = button_hold();
#ifndef BOOTLOADER
if (hold_button != hold_button_old)
backlight_hold_changed(hold_button);
#endif
/* device buttons */
if (!hold_button)
{
if ( (GPIOB_INPUT_VAL & 0x20)) btn |= BUTTON_POWER;
if (!(GPIOG_INPUT_VAL & 0x10)) btn |= BUTTON_UP;
if (!(GPIOH_INPUT_VAL & 0x01)) btn |= BUTTON_DOWN;
if (!(GPIOI_INPUT_VAL & 0x04)) btn |= BUTTON_LEFT;
if (!(GPIOG_INPUT_VAL & 0x02)) btn |= BUTTON_RIGHT;
if (!(GPIOL_INPUT_VAL & 0x04)) btn |= BUTTON_SELECT;
if (!(GPIOG_INPUT_VAL & 0x01)) btn |= BUTTON_REC;
if (!(GPIOL_INPUT_VAL & 0x10)) btn |= BUTTON_VOL_UP;
if (!(GPIOL_INPUT_VAL & 0x20)) btn |= BUTTON_VOL_DOWN;
}
return btn;
}
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