100 lines
2.7 KiB
C
100 lines
2.7 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) 2016 by Roman Stolyarov
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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 "system.h"
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#include "kernel.h"
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#include "button.h"
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#include "adc.h"
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#include "backlight.h"
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static bool soft_hold = false;
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#ifndef BOOTLOADER
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static unsigned hold_counter = 0;
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#ifndef IHIFI800
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#define HOLDBUTTON gpio_btn
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#define HOLDCNTMAX HZ
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#else
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#define HOLDBUTTON (gpio_btn) && (adc_val > 325) && (adc_val < 480)
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#define HOLDCNTMAX (HZ/10)
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#endif
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#endif
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void button_init_device(void) {
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GPIO_PCCON &= ~(1<<1); /* PWR BTN */
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GPIO_PCCON &= ~(1<<7); /* CD */
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}
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bool button_hold(void)
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{
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return soft_hold;
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}
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int button_read_device(void) {
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int adc_val = adc_read(ADC_BUTTONS);
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int gpio_btn = GPIO_PCDR & (1<<1);
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int button = BUTTON_NONE;
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if (gpio_btn)
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button |= BUTTON_POWER;
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#ifndef BOOTLOADER
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if (HOLDBUTTON) {
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if (++hold_counter == HOLDCNTMAX) {
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soft_hold = !soft_hold;
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backlight_hold_changed(soft_hold);
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}
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} else {
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hold_counter = 0;
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}
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if (soft_hold) {
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return (hold_counter <= HOLDCNTMAX) ? BUTTON_NONE : button;
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}
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#endif
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if (adc_val < 792) {
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if (adc_val < 480) {
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if (adc_val < 170) {
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if (adc_val < 46) {
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button |= BUTTON_HOME; // 0-45
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} else {
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button |= BUTTON_PLAY; // 46-169
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}
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} else {
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if (adc_val < 325) {
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button |= BUTTON_NEXT; // 170-324
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} else {
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button |= BUTTON_VOL_UP;// 325-479
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}
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}
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} else {
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if (adc_val < 636) {
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button |= BUTTON_VOL_DOWN;// 480-635
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} else {
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button |= BUTTON_PREV; // 636-791
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}
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}
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}
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return button;
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}
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