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#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: <nico at ni.fr.eu.org>
 * }}} */
#include "io.h"

/** Button port. */
#define BUTTON_IO B, 1

/** Initialise button. */
void
button_init (void);

/** Wait until the button is pressed and released. */
void
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 */