#ifndef button_h #define button_h /* button.h */ /* binwatch - Tiny binary wristwatch. {{{ * * Copyright (C) 2010 Nicolas Schodet * * 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 program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Contact : * Web: http://ni.fr.eu.org/ * Email: * }}} */ #include "io.h" /** Button port. */ #define BUTTON_IO B, 1 /** Initialise button. */ void button_init (void); /** Wait until the button is pressed and released, return press duration in * milliseconds. */ uint16_t button_wait (void); /** Return true if button is currently pressed. */ static inline uint8_t button_pressed (void) { return !IO_GET (BUTTON_IO); } #endif /* button_h */