| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2008 by ?? |
| * |
| * 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 "config.h" |
| #include "cpu.h" |
| #include "button.h" |
| #include "adc.h" |
| |
| void button_init_device(void) |
| { |
| GPIOA_DIR &= ~((1<<3) | (1<<2) | (1<<1) | (1<<0)); /* A3-A0 is input */ |
| GPIOA_DIR |= ((1<<6) | (1<<5) | (1<<4)); /* A4-A6 row outputs */ |
| } |
| |
| int button_read_device(void) |
| { |
| int result = BUTTON_NONE; |
| |
| /* direct GPIO connections */ |
| if (GPIOA_PIN(3)) |
| result |= BUTTON_MENU; |
| |
| /* This is a keypad using A4-A6 as columns and A0-A2 as rows */ |
| GPIOA_PIN(4) = (1<<4); |
| |
| /* A4A0 is unused */ |
| |
| if (GPIOA_PIN(1)) |
| result |= BUTTON_VOLDOWN; |
| |
| if (GPIOA_PIN(2)) |
| result |= BUTTON_PLAYPAUSE; |
| |
| GPIOA_PIN(4) = 0x00; |
| |
| GPIOA_PIN(5) = (1<<5); |
| |
| if (GPIOA_PIN(0)) |
| result |= BUTTON_LEFT; |
| |
| if (GPIOA_PIN(1)) |
| result |= BUTTON_SELECT; |
| |
| if (GPIOA_PIN(2)) |
| result |= BUTTON_RIGHT; |
| |
| GPIOA_PIN(5) = 0x00; |
| |
| |
| GPIOA_PIN(6) = (1<<6); |
| |
| if (GPIOA_PIN(0)) |
| result |= BUTTON_REPEATAB; |
| |
| if (GPIOA_PIN(1)) |
| result |= BUTTON_VOLUP; |
| |
| if (GPIOA_PIN(2)) |
| result |= BUTTON_HOLD; |
| GPIOA_PIN(6) = 0x00; |
| |
| return result; |
| } |
| |
| bool button_hold(void) |
| { |
| bool ret = false; |
| |
| GPIOA_PIN(6) = (1<<6); |
| if (GPIOA_PIN(2)) |
| ret = true; |
| GPIOA_PIN(6) = 0x00; |
| |
| return ret; |
| } |