125 lines
3.2 KiB
C
125 lines
3.2 KiB
C
/***************************************************************************
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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 by Thomas Martitz
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* Copyright (C) 2008 by Dominik Wenger
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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 "backlight.h"
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#include "dbop-as3525.h"
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extern void scrollwheel(unsigned wheel_value);
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#if defined(SANSA_FUZE)
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#define DBOP_BIT15_BUTTON BUTTON_HOME
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#endif
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#ifdef SANSA_E200V2
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#define DBOP_BIT15_BUTTON BUTTON_REC
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#endif
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/* Buttons */
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static bool hold_button = false;
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#ifndef BOOTLOADER
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static bool hold_button_old = false;
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#endif
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void button_init_device(void)
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{
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GPIOA_DIR |= (1<<1);
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GPIOA_PIN(1) = (1<<1);
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}
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bool button_hold(void)
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{
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return hold_button;
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}
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unsigned short button_read_dbop(void)
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{
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unsigned dbop_din = dbop_read_input();
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#if defined(HAVE_SCROLLWHEEL) && !defined(BOOTLOADER)
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/* scroll wheel handling */
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scrollwheel((dbop_din >> 13) & (1<<1|1<<0));
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#endif
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return dbop_din;
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}
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/*
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* Get button pressed from hardware
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*/
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int button_read_device(void)
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{
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#ifdef SANSA_FUZE
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static unsigned power_counter = 0;
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#endif
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unsigned short dbop_din;
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int btn = BUTTON_NONE;
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dbop_din = button_read_dbop();
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/* hold button handling */
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hold_button = ((dbop_din & (1<<12)) != 0);
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#ifndef BOOTLOADER
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/* light handling */
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if (hold_button != hold_button_old)
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{
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hold_button_old = hold_button;
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backlight_hold_changed(hold_button);
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}
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#endif /* BOOTLOADER */
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if (hold_button) {
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#ifdef SANSA_FUZE
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power_counter = HZ;
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#endif
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return 0;
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}
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/* push button handling */
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if ((dbop_din & (1 << 2)) == 0)
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btn |= BUTTON_UP;
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if ((dbop_din & (1 << 3)) == 0)
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btn |= BUTTON_LEFT;
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if ((dbop_din & (1 << 4)) == 0)
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btn |= BUTTON_SELECT;
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if ((dbop_din & (1 << 5)) == 0)
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btn |= BUTTON_RIGHT;
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if ((dbop_din & (1 << 6)) == 0)
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btn |= BUTTON_DOWN;
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if ((dbop_din & (1 << 8)) != 0)
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btn |= BUTTON_POWER;
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if ((dbop_din & (1 << 15)) == 0)
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btn |= DBOP_BIT15_BUTTON;
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#ifdef SANSA_FUZE
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/* read power on bit 8, but not if hold button was just released, since
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* you basically always hit power due to the slider mechanism after releasing
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* (fuze only)
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*/
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if (power_counter > 0) {
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power_counter--;
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btn &= ~BUTTON_POWER;
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}
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#endif
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return btn;
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}
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