4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
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26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
33 * \brief SAM3N-EK keypad: hardware-specific definitions
35 * \author Stefano Fedrigo <aleph@develer.com>
41 #include <cfg/macros.h> /* BV() */
42 #include <io/sam3_pio.h>
43 #include "hw/kbd_map.h"
45 #define K_RPT_MASK (K_LEFT | K_RIGHT)
49 PIOA_IDR = BV(15) | BV(16); \
50 PIOA_PUER = BV(15) | BV(16); \
51 PIOA_ODR = BV(15) | BV(16); \
52 PIOA_PER = BV(15) | BV(16); \
56 * Read the keyboard ports and return the mask of depressed keys.
58 INLINE keymask_t kbd_readkeys(void)
61 uint32_t reg = PIOA_PDSR;