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