| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2006 by Barry Wardell |
| * |
| * All files in this archive are subject to the GNU General Public License. |
| * See the file COPYING in the source tree root for full license agreement. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| ****************************************************************************/ |
| |
| /* Custom written for the H10 based on analysis of the GPIO data */ |
| |
| |
| #include <stdlib.h> |
| #include "config.h" |
| #include "cpu.h" |
| #include "system.h" |
| #include "button.h" |
| #include "kernel.h" |
| #include "backlight.h" |
| #include "adc.h" |
| #include "system.h" |
| |
| |
| void button_init_device(void) |
| { |
| /* No hardware initialisation required as it is done by the bootloader */ |
| } |
| |
| bool button_hold(void) |
| { |
| return (GPIOA_INPUT_VAL & 0x40)?false:true; |
| } |
| |
| /* |
| * Get button pressed from hardware |
| */ |
| int button_read_device(void) |
| { |
| int btn = BUTTON_NONE; |
| unsigned char state; |
| static bool hold_button = false; |
| |
| #if 0 |
| /* light handling */ |
| if (hold_button && !button_hold()) |
| { |
| backlight_on(); |
| } |
| #endif |
| |
| hold_button = button_hold(); |
| if (!hold_button) |
| { |
| /* Read normal buttons */ |
| state = GPIOA_INPUT_VAL & 0xf8; |
| if ((state & 0x8) == 0) btn |= BUTTON_FF; |
| if ((state & 0x10) == 0) btn |= BUTTON_PLAY; |
| if ((state & 0x20) == 0) btn |= BUTTON_REW; |
| if ((state & 0x40) == 0) btn |= BUTTON_RIGHT; |
| if ((state & 0x80) == 0) btn |= BUTTON_LEFT; |
| |
| /* Read power button */ |
| if ((GPIOB_INPUT_VAL & 0x1) == 0) btn |= BUTTON_POWER; |
| |
| /* Read scroller */ |
| if ( ((GPIOC_INPUT_VAL & 0x4)==1) && ((GPIOD_INPUT_VAL & 0x10)==1) ) |
| { |
| /* Scroller is pressed */ |
| } |
| } |
| |
| return btn; |
| } |