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97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
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/*
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* Copyright (c) 2008 Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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*
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* \brief
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* This file provides joystick operations. Combined with ADC functions.
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*
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* \author
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* Mike Vidales mavida404@gmail.com
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*
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*/
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#ifndef __KEY_H__
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#define __KEY_H__
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#include <stdint.h>
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#include <avr/io.h>
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#include <avr/pgmspace.h>
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/** \name Port definition for reading the joystick input. */
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/** \{ */
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#define KEY_PORT PINF
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#define KEY_PUR PORTF
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#define KEY_DDR DDRF
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#define KEY_PIN PINF1
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/** \} */
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/** \name Port defininition for the joystick Enter button. */
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/** \{ */
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#define ENTER_PORT PINE
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#define ENTER_PUR PORTE
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#define ENTER_DDR DDRE
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#define ENTER_PIN PINE2
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/** \} */
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/** \name Valid Key States. */
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/** \{ */
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#define KEY_STATE_UP 0x01
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#define KEY_STATE_DOWN 0x02
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#define KEY_STATE_LEFT 0x04
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#define KEY_STATE_RIGHT 0x08
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#define KEY_STATE_ENTER 0x10
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#define KEY_STATE_NO_KEY 0x00
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#define KEY_STATE_DONE 0x20
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/** \} */
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typedef enum {
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KEY_UP = 0x01,
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KEY_DOWN = 0x02,
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KEY_LEFT = 0x04,
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KEY_RIGHT = 0x08,
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KEY_ENTER = 0x10,
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KEY_NO_KEY = 0x00
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}key_state_t;
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extern key_state_t button;
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/* Initialize the joystick */
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void key_init(void);
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void key_deinit(void);
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key_state_t key_task(void);
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key_state_t key_state_get(void);
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uint8_t is_button(void);
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uint8_t get_button(void);
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#endif /* __KEY_H__ */
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