f74a6ed38a
Fixes some buttons not being read (hold is still buggy) FlySpray: FS#11111 Author: Pascal Below git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25209 a1c6a512-1295-4272-9138-f99709370657
145 lines
3.6 KiB
C
145 lines
3.6 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) 2009 Bertrik Sikken
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* Copyright (C) 2008 François Dinel
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* Copyright © 2008-2009 Rafaël Carré
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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 "system.h"
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#include "button-target.h"
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#include "as3525v2.h"
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#ifndef BOOTLOADER
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#include "backlight.h"
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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<<7) | (1<<3));
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GPIOD_DIR &= ~((1<<2) | (1<<1) | (1<<0));
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GPIOD_PIN(3) = 1<<3;
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GPIOD_PIN(4) = 1<<4;
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GPIOD_PIN(5) = 1<<5;
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GPIOD_DIR |= ((1<<5) | (1<<4) | (1<<3));
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/* get initial readings */
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button_read_device();
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button_read_device();
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button_read_device();
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}
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int button_read_device(void)
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{
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static int row = 0;
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static int buttons = 0;
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static unsigned power_counter = 0;
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if(button_hold())
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{
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power_counter = HZ;
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return 0;
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}
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/* direct GPIO connections */
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/* read power, but not if hold button was just released, since
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* you basically always hit power due to the slider mechanism after
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* releasing hold (wait 1 sec) */
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if (power_counter)
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power_counter--;
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if (GPIOA_PIN(7) && !power_counter)
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buttons |= BUTTON_POWER;
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else
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buttons &= ~BUTTON_POWER;
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/* This is a keypad using D3-D5 as columns and D0-D2 as rows */
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switch (row) {
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case 0:
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buttons &= ~(BUTTON_VOL_UP | BUTTON_UP);
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(void)GPIOD_PIN(0); /* D3D0 is unused */
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if (!GPIOD_PIN(1))
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buttons |= BUTTON_VOL_UP;
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if (!GPIOD_PIN(2))
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buttons |= BUTTON_UP;
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GPIOD_PIN(3) = 1<<3;
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GPIOD_PIN(4) = 0x00;
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row++;
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break;
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case 1:
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buttons &= ~(BUTTON_LEFT | BUTTON_SELECT | BUTTON_RIGHT);
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if (!GPIOD_PIN(0))
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buttons |= BUTTON_LEFT;
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if (!GPIOD_PIN(1))
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buttons |= BUTTON_SELECT;
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if (!GPIOD_PIN(2))
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buttons |= BUTTON_RIGHT;
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GPIOD_PIN(4) = 1<<4;
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GPIOD_PIN(5) = 0x00;
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row++;
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break;
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case 2:
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buttons &= ~(BUTTON_DOWN | BUTTON_VOL_DOWN | BUTTON_HOME);
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if (!GPIOD_PIN(0))
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buttons |= BUTTON_DOWN;
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if (!GPIOD_PIN(1))
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buttons |= BUTTON_VOL_DOWN;
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if (!GPIOD_PIN(2))
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buttons |= BUTTON_HOME;
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GPIOD_PIN(5) = 1<<5;
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GPIOD_PIN(3) = 0x00;
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default:
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row = 0;
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break;
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}
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return buttons;
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}
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bool button_hold(void)
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{
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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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bool hold_button = (GPIOA_PIN(3) != 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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return hold_button;
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}
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